pre-readme

kicad/stm32card/#auto_saved_files#

@@ -0,0 +1 @@
+/home/indigo/projects/stm32_buisnesscard/kicad/stm32card/_autosave-stm32card.kicad_sch

kicad/stm32card/stm32card.kicad_prl

@@ -11,7 +11,7 @@
       "images": 1.0,
       "pads": 1.0,
       "shapes": 1.0,
-      "tracks": 1.0,
+      "tracks": 0.27000001072883606,
       "vias": 1.0,
       "zones": 0.7099999785423279
     },

kicad/stm32card/stm32card.kicad_pro

@@ -459,6 +459,7 @@
       "single_global_label": "ignore",
       "unannotated": "error",
       "unconnected_wire_endpoint": "warning",
+      "undefined_netclass": "error",
       "unit_value_mismatch": "error",
       "unresolved_variable": "error",
       "wire_dangling": "error"
@@ -528,10 +529,10 @@
       "gencad": "",
       "idf": "",
       "netlist": "",
-      "plot": "../../v3_career_fair/",
+      "plot": "../stm32card_stencil/",
       "pos_files": "",
       "specctra_dsn": "",
-      "step": "",
+      "step": "stm32card.step",
       "svg": "",
       "vrml": ""
     },

kicad/stm32card/stm32card.kicad_sch

@@ -5259,6 +5259,16 @@
 		)
 		(uuid "3002dedb-2703-489f-882f-bab25b7dda33")
 	)
+	(text "I finished this in a rush and I'm not sure why I did this.\nR21 should be a short and there needs to be a resistor instead of a diode."
+		(exclude_from_sim no)
+		(at 84.074 149.352 0)
+		(effects
+			(font
+				(size 1.27 1.27)
+			)
+		)
+		(uuid "5473d214-3849-47a5-8b2b-db0b7c7e51f5")
+	)
 	(text "double check voltage diviers, maybe push higher - LCSC!"
 		(exclude_from_sim no)
 		(at 43.434 -3.556 0)
@@ -15482,13 +15492,12 @@
 		(dnp no)
 		(uuid "b24b357b-0b8d-43fe-933c-61bdb6083d63")
 		(property "Reference" "R21"
-			(at 104.648 140.97 0)
+			(at 104.902 142.24 0)
 			(effects
 				(font
 					(size 1.27 1.27)
 				)
 				(justify right)
-				(hide yes)
 			)
 		)
 		(property "Value" "10k"
@@ -15498,6 +15507,7 @@
 					(size 1.27 1.27)
 				)
 				(justify right)
+				(hide yes)
 			)
 		)
 		(property "Footprint" "Resistor_SMD:R_0603_1608Metric"

kicad/stm32card/~stm32card.kicad_sch.lck

@@ -0,0 +1 @@
+{"hostname":"indigosDesktop","username":"indigo"}

kicad/stm32card_stencil/pcb_stencil_gen/kicadExportDxf.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+
+# Based on https://github.com/KiCad/kicad-source-mirror/blob/master/demos/python_scripts_examples/gen_gerber_and_drill_files_board.py
+
+import sys
+import os
+
+from pcbnew import *
+
+def help():
+    print("Usage: kicadExportDxf.py <board file> [<output dir>]")
+    print("    Default output dir same as the board directory'")
+
+if len(sys.argv) == 1 or len(sys.argv) > 3:
+    print("Invalid number of arguments.")
+    help()
+    sys.exit()
+
+filename = sys.argv[1]
+basename = os.path.dirname(filename)
+if len(sys.argv) == 3:
+    plotDir = sys.argv[2]
+else:
+    plotDir = basename
+plotDir = os.path.abspath(plotDir)
+
+board = LoadBoard(filename)
+
+pctl = PLOT_CONTROLLER(board)
+popt = pctl.GetPlotOptions()
+
+popt.SetOutputDirectory(plotDir)
+popt.SetAutoScale(False)
+popt.SetScale(1)
+popt.SetMirror(False)
+popt.SetExcludeEdgeLayer(True)
+popt.SetScale(1)
+popt.SetDXFPlotUnits(DXF_PLOTTER.DXF_UNIT_MILLIMETERS)
+popt.SetDXFPlotPolygonMode(False)
+
+plot_plan = [
+    # name, id, comment
+    ("PasteBottom", B_Paste, "Paste Bottom"),
+    ("PasteTop", F_Paste, "Paste top"),
+    ("EdgeCuts", Edge_Cuts, "Edges"),
+]
+
+for name, id, comment in plot_plan:
+    pctl.SetLayer(id)
+    pctl.OpenPlotfile(name, PLOT_FORMAT_DXF, comment)
+    print('plot {}'.format(pctl.GetPlotFileName()))
+    if pctl.PlotLayer() == False:
+        print("plot error")
+pctl.ClosePlot()
+
+sys.exit(0)

kicad/stm32card_stencil/pcb_stencil_gen/pcbStencilGenerator.scad

@@ -0,0 +1,48 @@
+module stencilFrame(outlineDxf, height, width, clearance) {
+    linear_extrude(height = height)
+        difference() {
+            offset(r = width + clearance) import(file = outlineDxf);
+            offset(r = clearance) import(file = outlineDxf);
+        };
+};
+
+module stencilSubstrate(outlineDxf, thickness, frameHeight,
+    frameWidth, frameClearance)
+{
+    difference() {
+        linear_extrude(height = thickness + frameHeight)
+            offset(r = frameWidth + frameClearance)
+            import(file = outlineDxf);
+        translate([0, 0, thickness])
+            linear_extrude(height = thickness + frameHeight)
+            offset(r = frameClearance)
+            import(file = outlineDxf);
+    }
+}
+
+module stencil(outlineDxf, holesDxf, thickness = 0.2, frameHeight = 1,
+    frameWidth = 1, frameClearance = 0.1, enlargeHoles = 0.05, front = true)
+{
+    zScale = front ? -1 : 1;
+    xRotate = front ? 180 : 0;
+    rotate(a = xRotate, v = [1, 0, 0])
+        difference() {
+            scale([1, 1, zScale]) stencilSubstrate(outlineDxf, thickness,
+                frameHeight, frameWidth, frameClearance);
+            linear_extrude(height = 4 * thickness, center = true)
+                offset(delta = enlargeHoles) import(file = holesDxf);
+        };
+}
+
+$fa = 0.4;
+$fs = 0.4;
+thickness = 0.2;
+frameHeight = 1;
+frameWidth = 2;
+enlargeHoles = 0.0;
+frameClearance = 0;
+
+front = true;
+
+stencil("../stm32card-Edge_Cuts.dxf", "../stm32card-F_Paste.dxf", thickness = thickness, frameHeight = frameHeight,
+    frameWidth = frameWidth, frameClearance = frameClearance, front=front);

kicad/stm32card_stencil/stm32card-Edge_Cuts.svg

@@ -0,0 +1,36 @@
+<?xml version="1.0" standalone="no"?>
+ <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" 
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> 
+<svg
+  xmlns:svg="http://www.w3.org/2000/svg"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="1.1"
+  width="297.0022mm" height="210.0072mm" viewBox="0.0000 0.0000 297.0022 210.0072">
+<title>SVG Image created as stm32card-Edge_Cuts.svg date 2025/09/11 14:25:54 </title>
+  <desc>Image generated by PCBNEW </desc>
+<g style="fill:#000000; fill-opacity:1.0000;stroke:#000000; stroke-opacity:1.0000;
+stroke-linecap:round; stroke-linejoin:round;"
+ transform="translate(0 0) scale(1 1)">
+</g>
+<g style="fill:none; 
+stroke:#000000; stroke-width:0.0500; stroke-opacity:1; 
+stroke-linecap:round; stroke-linejoin:round;">
+<path d="M137.5645 132.3355
+L216.4645 132.3355
+" />
+<path d="M132.5645 127.3355 A5.0000 5.0000 0.0 0 0 137.5645 132.3355" />
+<path d="M132.5645 86.5355
+L132.5645 127.3355
+" />
+<path d="M221.4645 86.5355 A5.0000 5.0000 0.0 0 0 216.4645 81.5355" />
+<path d="M221.4645 127.3355
+L221.4645 86.5355
+" />
+<path d="M216.4645 81.5355
+L137.5645 81.5355
+" />
+<path d="M137.5645 81.5355 A4.9999 4.9999 0.0 0 0 132.5645 86.5355" />
+<path d="M216.4645 132.3356 A5.0001 5.0001 0.0 0 0 221.4645 127.3355" />
+</g> 
+</svg>

program/stm32f1_buisnesscard_v1/.gdb_history

@@ -1,256 +1,256 @@
+c
+p unoptimized_times 
+quit
+c
+p unoptimized_times 
+print optimized_times 
+run
+print optimized_times 
+p unoptimized_times 
+quit
+c
+quit
+quit
+c
+print optimized_times 
+p unoptimized_times 
+quit
+quit
+c
+quit
+qut
+quit
+c
+print unoptimized_times 
+print optimized_times 
+print unoptimized_times 
+load
+c
+print unoptimized_times 
+print optimized_times 
+dump mod8
+disassemble 
+disassemble mod8
+context
+b mod8
+b mandelbrot.c:67
+load
+c
+quit
+c
+print optimized_times 
+quit
+c
+quit
+c
+print optimized_times 
+quit
+quit
+c
+print optimized_times 
+b mandelbrot_bordertrace
+load
+c
+print mod8
+print mod8(1)
+print mod(1)
+print mod8(1)
+quit
+c
+print optimized_times 
+quit
+c
+print optimized_times 
+quit
+c
+quit
+c
+quit
+c
+b get_neighbor_index
+c
 load
 c
 next
-n
+print from_pixel + neighbor_index_accl[direction]
-print borders
+print direction 
-n
+print from_pixel - win.w
-print nei_dir
+print from_pixel - (win.w + 1)
-n
+print from_pixel + neighbor_index_accl[1]
-n
+print from_pixel - win.w + 1
-print nei_dir
+quit
+quit
+c
+b get_neighbor_index
+c
+load
+c
+next
+quit
+c
+quit
+c
+print optimized_times 
+quit
+c
+quit
+c
+print optimized_times 
+quit
+c
+quit
+c
+print pin_mult 
+print/x pin_mult
+print pin
+print/x pin
+print/b pin
+print/x pin
+c
+quyit
+quit
+c
+c
+print/x pin_mult
+quit
+c
+print pin_mult 
+print/x pin_mult 
+print GPIO_EXTI_REG->IDR & BUTTON_MASK
+print GPIO_EXTI_REG->IDR 
+c
+print/x pin_mult 
+print/x pin_mult 
+c
+print/x pin_mult 
+c
+print/x pin_mult 
+c
+print/x pin_mult 
+quit
+make
+quit
+c
+print/x pin_mult 
+quit
+c
+quit
+c
+print pin_mult
+print/x pin_mult
+print pin_mult
+print/x pin_mult
+quit
+c
+print/x pin_mult
+c
+print/x pin_mult
+c
+print/x pin_mult
+c
+print/x pin_mult
+c
+print/x pin_mult
+c
+print/x pin_mult
+c
+print/x pin_mult
+p BUTTON_REG_1
+print/x pin_mult
+c
+print/x pin_mult
+print pin_mult & (pin_mult - 1)
+print pin
+print button_reg_1
+print GPIO_B
+print BUTTON_R1_MASK
+quit
+c
+print fuck1
+print fuck2
+print pin_mult
+next
+c
+c
+c
+quit
+c
+print pin_mult
+print fuck1
+print fuck1 & BUTTON_R1_MASK
+c
+print pin_mult
+print/x pin_mult
+quit
+c
+c
+c
+quit
+c
+quit
+c
+b mandelbrot.c:447
+c
+b 55
+b 372-55
+b 317
+c
+c
+print GET_X(this_index, win)
+print x
 print this_index
-print pixels[this_index]
-print framebuffer[this_index]
-print framebuffer[this_index] & G_MASK
-print framebuffer[this_index+1] & G_MASK
 next
-print gchan_info
 next
-print i
-print this_coord
-print get_neighbor_coord(this_coord, nei_dir, scale)
-print FIXED_TO_DOUBLE(this_coord.r)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, nei_dir, scale))
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, nei_dir, scale).r)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 0, scale).r)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 0, scale).r) 1
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 0, scale).r), 1
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 0, scale).r)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 1, scale).r)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 2, scale).r)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 3, scale).r)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 4, scale).r)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 5, scale).r)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 6, scale).r)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 7, scale).r)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 0, scale).i)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 1, scale).i)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 2, scale).i)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 3, scale).i)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 4, scale).i)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 5, scale).i)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 6, scale).i)
-print FIXED_TO_DOUBLE(get_neighbor_coord(this_coord, 7, scale).i)
-print FIXED_TO_DOUBLE(this_coord.i)
 c
 c
+d
+d
+c
+quit
 quit
-c
 c
 quit
 c
 quit
 c
+quit
 c
 quit
 quit
 c
-c
-quit
-next
-qiot
 quit
 c
 quit
+c
+print unoptimized_times 
+cat optimized_times 
+
+print optimized_times 
+exit()
+quit
+quit
+c
+quit
+c
+context
+quit
 quit
 c
 c
 f 2
-context
+print cam
 quit
 c
-quit
+f 2
-c
+print cam
-quit
+c
-'c
+f 2
-c
+print cam
-c
+c
-quit
+f 2
-c
+print cam
-HAL_GPIO_TogglePin
+c
-print HAL_GPIO_TogglePin()
+print cam
-b idle 
+f 2
-c
+print cam
-print HAL_GPIO_TogglePin()
-quit
-c
-c
-quit
-quit
-c
-quit
-c
-b idle
-c
-next
-print charging_bat
-print charging_bat()
-print charging_batt()
-b charging_batt 
-c
-print HAL_GPIO_ReadPin(GPIO_EXTI_REG, CHARGING_PIN)
-print ~HAL_GPIO_ReadPin(GPIO_EXTI_REG, CHARGING_PIN)
-print ~(HAL_GPIO_ReadPin(GPIO_EXTI_REG, CHARGING_PIN))
-print !(HAL_GPIO_ReadPin(GPIO_EXTI_REG, CHARGING_PIN))
-print (HAL_GPIO_ReadPin(GPIO_EXTI_REG, CHARGING_PIN))
-print GPIO_PIN_SET
-ptype GPIO_PIN_SET
-quit
-print HAL_GPIO_ReadPin(GPIO_EXTI_REG, CHARGING_PIN)
-b charging_batt 
-c
-step
-quit
-b idle
-c
-next
-print charing_batt()
-print charging_batt()
-print event_peek()
-next
-next
-c
-next
-next
-next
-b idle
-d
-c
-b idle
-c
-next
-print event_peek
-print event_peek()
-print ST7735_wake()
-b ST7735_wake
-c
-c
-next
-next
-next
-c
-next
-quit
-c
-quit
-c
-b idle.c:23
-c
-c
-quit
-c
-c
-c
-print ST7735_sleep()
-c
-print ST7735_wake()
-quit
-b main
-c
-next
-print ST7735_sleep()
-print ST7735_wake()
-exit
-c
-quit
-c
-quit
-c
-quit
-c
-quit
-c
-quit
-quit
-c
-quit
-c
-quit
-c
-quit
-c
-quit
-c
-quit
-c
-quit
-c
-quit
-quit
-c
-quit
-c
-quit
-c
-next
-quit
-c
-print on_pixel
-next
-quit
-c
-next
-quit
-quit
-c
-print y
-print x
-next
-next
-print framebuffer[on_pixel] & G_MASK
-print framebuffer[on_pixel] 
-print framebuffer[on_pixel] & ~G_MASK
-quit
-c
-c
-quit
-c
-c
-quit
-c
-next
-next
-quit
-quit
-c
-c
-step
-print on_pixel
-quit
-c
-next
-print border
-print borders
-next
-print iterate(this_coord)
-quit
-c
-quit
-c
-print framebuffer[this_index]
-print framebuffer[this_index] & GCHAN
-print framebuffer[this_index] & G_MASK
-print framebuffer[nei_i] & G_MASK
-print nei_i
-print framebuffer[nei_i] & G_MASK
-next
-print i
-print colorscheme[i]
-print ITERS
-quit
-c
-c
-c
-c
-quit
 quit

program/stm32f1_buisnesscard_v1/Core/Inc/benchmark.h

@@ -2,6 +2,4 @@
 #include <signal.h>
 #include "main.h"
 
-
+void benchmark();
-void benchmark_start();
-void benchmark_stop();

program/stm32f1_buisnesscard_v1/Core/Inc/gpio.h

@@ -7,15 +7,26 @@
   TODO move to gpio.h or somethin
 **/
 
-#define GPIO_EXTI_REG       GPIOB
+#define EVENT_NONE          0 
+
+#define BUTTON_REG_1        GPIOA
+#define BUTTON_REG_2        GPIOB
+#define BUTTON_R1_MASK      (BUTTON_UP | BUTTON_DOWN | BUTTON_RIGHT | BUTTON_LEFT)
+#define BUTTON_R2_MASK      (BUTTON_A | BUTTON_B)
+
 #define BUTTON_UP           GPIO_PIN_3
 #define BUTTON_RIGHT        GPIO_PIN_2
 #define BUTTON_DOWN         GPIO_PIN_0
 #define BUTTON_LEFT         GPIO_PIN_1
 #define BUTTON_A            GPIO_PIN_13
 #define BUTTON_B            GPIO_PIN_14
+
+#define CHARGING_PORT       GPIOB
 #define CHARGING_PIN        GPIO_PIN_12
-#define EVENT_NONE          0 
+
+#define DEMO_NEXTVIEW       BUTTON_A | BUTTON_B | BUTTON_RIGHT
+#define DEMO_LASTVIEW       BUTTON_A | BUTTON_B | BUTTON_LEFT
+#define DEMO_BORDER         BUTTON_A | BUTTON_B | BUTTON_UP
 
 extern int button;
 void HAL_GPIO_EXTI_Callback(uint16_t pin);

program/stm32f1_buisnesscard_v1/Core/Inc/mandelbrot.h

@@ -1,3 +1,17 @@
 #pragma once
 
-void draw_mandelbrot();
+#define RES_X             160
+#define RES_Y             80
+
+struct camera {
+  double min_r, min_i, max_r, max_i;
+};
+
+struct window {
+  unsigned int x0, y0, w, h;
+};
+
+void render_loop();
+void init_colorscheme(uint16_t *scheme);
+unsigned int mandelbrot_bordertrace(uint16_t *framebuffer, const uint16_t *colorscheme, const struct camera cam, const struct window win);
+unsigned int mandelbrot_unoptimized(uint16_t *framebuffer, const uint16_t *colorscheme, const struct camera cam, const struct window win);

program/stm32f1_buisnesscard_v1/Core/Inc/st7735.h

@@ -30,138 +30,7 @@ extern SPI_HandleTypeDef ST7735_SPI_PORT;
 #define BACKLIGHT_PORT       GPIOB
 #define BACKLIGHT_PIN        GPIO_PIN_15
 
-// AliExpress/eBay 1.8" display, default orientation
-/*
-#define ST7735_IS_160X128 1
-#define ST7735_WIDTH  128
-#define ST7735_HEIGHT 160
-#define ST7735_XSTART 0
-#define ST7735_YSTART 0
-#define ST7735_ROTATION (ST7735_MADCTL_MX | ST7735_MADCTL_MY)
-*/
 
-// AliExpress/eBay 1.8" display, rotate right
-/*
-#define ST7735_IS_160X128 1
-#define ST7735_WIDTH  160
-#define ST7735_HEIGHT 128
-#define ST7735_XSTART 0
-#define ST7735_YSTART 0
-#define ST7735_ROTATION (ST7735_MADCTL_MY | ST7735_MADCTL_MV)
-*/
-
-// AliExpress/eBay 1.8" display, rotate left
-/*
-shutdown command invoked
-
- 1  indigo@indigosDesktop  ~/projects/stm32_buisnesscard/program/stm32f1_buisnesscard_v1   main ●  make && openocd -f i
-#define ST7735_IS_160X128 1
-#define ST7735_WIDTH  160
-#define ST7735_HEIGHT 128
-#define ST7735_XSTART 0
-#define ST7735_YSTART 0
-#define ST7735_ROTATION (ST7735_MADCTL_MX | ST7735_MADCTL_MV)
-*/
-
-// AliExpress/eBay 1.8" display, upside down
-/*
-#define ST7735_IS_160X128 1
-#define ST7735_WIDTH  128
-#define ST7735_HEIGHT 160
-#define ST7735_XSTART 0
-#define ST7735_YSTART 0
-#define ST7735_ROTATION (0)
-*/
-
-// WaveShare ST7735S-based 1.8" display, default orientation
-/*
-#define ST7735_IS_160X128 1
-#define ST7735_WIDTH  128
-#define ST7735_HEIGHT 160
-#define ST7735_XSTART 2
-#define ST7735_YSTART 1
-#define ST7735_ROTATION (ST7735_MADCTL_MX | ST7735_MADCTL_MY | ST7735_MADCTL_RGB)
-*/
-
-// WaveShare ST7735S-based 1.8" display, rotate right
-/*
-#define ST7735_IS_160X128 1
-#define ST7735_WIDTH  160
-#define ST7735_HEIGHT 128
-#define ST7735_XSTART 1
-#define ST7735_YSTART 2
-#define ST7735_ROTATION (ST7735_MADCTL_MY | ST7735_MADCTL_MV | ST7735_MADCTL_RGB)
-*/
-
-// WaveShare ST7735S-based 1.8" display, rotate left
-/*
-#define ST7735_IS_160X128 1
-#define ST7735_WIDTH  160
-#define ST7735_HEIGHT 128
-#define ST7735_XSTART 1
-#define ST7735_YSTART 2
-#define ST7735_ROTATION (ST7735_MADCTL_MX | ST7735_MADCTL_MV | ST7735_MADCTL_RGB)
-*/
-
-// WaveShare ST7735S-based 1.8" display, upside down
-/*
-#define ST7735_IS_160X128 1
-#define ST7735_WIDTH  128
-#define ST7735_HEIGHT 160
-#define ST7735_XSTART 2
-#define ST7735_YSTART 1
-#define ST7735_ROTATION (ST7735_MADCTL_RGB)
-*/
-
-// 1.44" display, default orientation
-/**
-#define ST7735_IS_128X128 1
-#define ST7735_WIDTH  128
-#define ST7735_HEIGHT 128
-#define ST7735_XSTART 2
-#define ST7735_YSTART 3
-#define ST7735_ROTATION (ST7735_MADCTL_MX | ST7735_MADCTL_MY | ST7735_MADCTL_BGR)
-**/
-
-// 1.44" display, rotate right
-/*
-#define ST7735_IS_128X128 1
-#define ST7735_WIDTH  128
-#define ST7735_HEIGHT 128
-#define ST7735_XSTART 3
-#define ST7735_YSTART 2
-#define ST7735_ROTATION (ST7735_MADCTL_MY | ST7735_MADCTL_MV | ST7735_MADCTL_BGR)
-*/
-
-// 1.44" display, rotate left
-/*
-#define ST7735_IS_128X128 1
-#define ST7735_WIDTH  128
-#define ST7735_HEIGHT 128
-#define ST7735_XSTART 1
-#define ST7735_YSTART 2
-#define ST7735_ROTATION (ST7735_MADCTL_MX | ST7735_MADCTL_MV | ST7735_MADCTL_BGR)
-*/
-
-// 1.44" display, upside down
-/*
-#define ST7735_IS_128X128 1
-#define ST7735_WIDTH  128
-#define ST7735_HEIGHT 128
-#define ST7735_XSTART 2
-#define ST7735_YSTART 1
-#define ST7735_ROTATION (ST7735_MADCTL_BGR)
-*/
-
-// mini 160x80 display (it's unlikely you want the default orientation)
-/*
-#define ST7735_IS_160X80 1
-#define ST7735_XSTART 26
-#define ST7735_YSTART 1
-#define ST7735_WIDTH  80
-#define ST7735_HEIGHT 160 
-#define ST7735_ROTATION (ST7735_MADCTL_MX | ST7735_MADCTL_MY | ST7735_MADCTL_BGR)
-*/
 
 // mini 160x80, rotate left
 #define ST7735_IS_160X80 1
@@ -171,18 +40,6 @@ shutdown command invoked
 #define ST7735_HEIGHT 80
 #define ST7735_ROTATION (ST7735_MADCTL_MX | ST7735_MADCTL_MV | ST7735_MADCTL_BGR)
 
-// mini 160x80, rotate right 
-
-/**
-#define ST7735_IS_160X80 1
-#define ST7735_XSTART 1
-#define ST7735_YSTART 26
-#define ST7735_WIDTH  160
-#define ST7735_HEIGHT 80
-#define ST7735_ROTATION (ST7735_MADCTL_MY | ST7735_MADCTL_MV | ST7735_MADCTL_BGR)
-**/
-
-
 /****************************/
 
 #define ST7735_NOP     0x00

program/stm32f1_buisnesscard_v1/Core/Src/benchmark.c

@@ -1,20 +1,77 @@
 #include <signal.h>
+#include "mandelbrot.h"
 #include "main.h"
+#include "st7735.h"
+#include "gpio.h"
 
-static float time __attribute__((used));
+//static float time __attribute__((used));
 
+//whatever I'm tired of using hal
 void benchmark_start() {
   TIM4->CNT = 0;
   TIM4->CR1 |= TIM_CR1_CEN;
 }
-void benchmark_stop() {
+
+float benchmark_stop() {
   TIM4->CR1 ^= TIM_CR1_CEN;
-  time = (float)(TIM4->CNT + 1) * (TIM4->PSC + 1) / HAL_RCC_GetSysClockFreq();
+  return (float)(TIM4->CNT + 1) * (TIM4->PSC + 1) / HAL_RCC_GetSysClockFreq();
-  BENCHMARK_CHECKTIME:
-  __NOP();
-//  __BKPT();
 }
 
 void benchmark() {
+  uint16_t scheme[256]; //yeah eyah yeah constant scope balalse';hjf v'wef
+  init_colorscheme(scheme);
 
+  const struct camera cases[] = {
+    //shows child mandelbrot at about 1/4th of the screen 
+    (struct camera) {1.511138965827779623297, -0.000099833545397436595, 1.513299500557251375810, 0.000980433819429512915},
+
+    //main set taking up most of screen
+    (struct camera) {-1.006631762350983283483, 0.033264514201812478422, 0.159212948008334742589, 0.616186869452269969649},
+
+    //main set taking up a little bit of the screen
+    (struct camera) {-3.860919485929509509248, -1.895171233654595388529, 4.122278116347564136390, 2.096427567968737193382},
+
+    //zoomed in far, set taking up half of screen
+    (struct camera) {0.250175465354113391037, -0.000006169573538442441, 0.250185172171380920680, -0.000001316164904004028},
+
+    //zoomed in far, set taking up none of screen
+    (struct camera) {0.250177970233267155109, -0.000003445496138560340, 0.250181935207702044188, -0.000001463008920807711},
+
+    //half and half, complex border
+    (struct camera) {3.530034617447952438596, -0.011581384229626515842, 3.530490903206738639852, -0.011353241350196253967},
+
+    //complete blackness
+    (struct camera) {-1.097044987707582519576, 0.142802338676453366428, -1.000760853479837342306, 0.190944405713568132743}
+  };
+
+  const int case_cnt = sizeof(cases) / sizeof(*cases);
+
+  static float unoptimized_times[7] __attribute__((used));
+  static float optimized_times[7] __attribute__((used));
+
+  uint16_t framebuffer[(RES_X/2) * RES_Y] = {0};
+  const struct window left_half = {0, 0, 80, 80};
+  const struct window right_half = {80, 0, 80, 80};
+  
+
+  for(int case_i = 0; case_i < case_cnt;  case_i++) {
+
+    benchmark_start();
+    mandelbrot_bordertrace(framebuffer, scheme, cases[case_i], left_half);
+    ST7735_DrawImage(0, 0, 80, 80, framebuffer);
+    mandelbrot_bordertrace(framebuffer, scheme, cases[case_i], right_half);
+    ST7735_DrawImage(80, 0, 80, 80, framebuffer);
+    optimized_times[case_i] = benchmark_stop();
+ //   while(!event_get());
+    
+    benchmark_start();
+    mandelbrot_unoptimized(framebuffer, scheme, cases[case_i], left_half);
+    ST7735_DrawImage(0, 0, 80, 80, framebuffer);
+    mandelbrot_unoptimized(framebuffer, scheme, cases[case_i], right_half);
+    ST7735_DrawImage(80, 0, 80, 80, framebuffer);
+    unoptimized_times[case_i] = benchmark_stop();
+//    while(!event_get());
+
+  }
+  __BKPT();
 }

program/stm32f1_buisnesscard_v1/Core/Src/gpio.c

@@ -2,8 +2,20 @@
 #include <stdint.h>
 #include <stdbool.h>
 
+
 int gpio_event = EVENT_NONE;
-void HAL_GPIO_EXTI_Callback(uint16_t pin) { gpio_event = pin; }
+
+void HAL_GPIO_EXTI_Callback(uint16_t pin) { 
+  //implimented demo functionality last second; maybe consider moving to a different interrupt
+  uint32_t pin_mult = (((BUTTON_REG_1->IDR) & BUTTON_R1_MASK) | ((BUTTON_REG_2->IDR) & BUTTON_R2_MASK));
+  uint32_t fuck1 = BUTTON_REG_1 -> IDR;
+  uint32_t fuck2 = BUTTON_REG_2 -> IDR;
+  if((pin_mult & (pin_mult - 1))) {
+    gpio_event = pin_mult;
+  }
+  else gpio_event = pin; 
+}
+
 int event_get() {
   int event = gpio_event;
   gpio_event = EVENT_NONE;
@@ -12,5 +24,4 @@ int event_get() {
 
 int event_peek() { return gpio_event; }
 
-bool charging_batt() { return !HAL_GPIO_ReadPin(GPIO_EXTI_REG, CHARGING_PIN); }
+bool charging_batt() { return HAL_GPIO_ReadPin(CHARGING_PORT, CHARGING_PIN); }
-//bool charging_batt() { return ~HAL_GPIO_ReadPin(GPIO_EXTI_REG, CHARGING_PIN); }

program/stm32f1_buisnesscard_v1/Core/Src/main.c

@@ -125,9 +125,11 @@ int main(void)
 
   /* Infinite loop */
   /* USER CODE BEGIN WHILE */
+//  benchmark();
   while (1)
   {
-    draw_mandelbrot();
+    render_loop();
+//    benchmark();
     /* USER CODE END WHILE */
 
     /* USER CODE BEGIN 3 */

program/stm32f1_buisnesscard_v1/Core/Src/mandelbrot.c

@@ -5,6 +5,7 @@
 #include "main.h"
 #include "gpio.h"
 #include "idle.h"
+#include "stm32f1xx_hal_spi.h"
 
 #define RES_X             160
 #define RES_Y             80
@@ -24,12 +25,6 @@
 #define ITERS     255
 #define INFTY_SQR_FIXED DOUBLE_TO_FIXED(INFTY_SQR)
 
-//TODO move to some hardware.h or somethin
-//channel order: B, G, R
-#define R_BITS  5
-#define G_BITS  6
-#define B_BITS  5
-
 #define G_MASK  0xe007
 
 //imaginary axis set automatically
@@ -59,24 +54,24 @@ typedef struct {
   int32_t r; int32_t i;
 } FixedCord;
 
-struct camera {
-  double min_r, min_i, max_r, max_i;
-};
 
-struct window {
-  unsigned int x0, y0, w, h;
-};
 
-//C does remainder, not modulo.
+int mod8(int n) {
-//TODO optimize for mod 8. Benchmark
+  //I don't understand how, but somehow just anding the result is slower...?
-inline int mod(int n, int d) {
+  //I've got too many things on my plate to disassemble this, but feel free to look into it yourself
-  int r = n % d;
+  int r = n % 8;
-  return (r < 0) ? r + d : r;
+  return (r < 0) ? r + 8 : r;
 }
-int mod(int n, int d);
+/**
+inline __attribute__((forced_inline)) int mod8(int n) {
+  return (n + 8) & 0b111;
+}
+**/
+int mod8(int n);
 
 
-inline FixedCord get_neighbor_coord(FixedCord from_coord, int direction, FixedCord step) {
+
+FixedCord get_neighbor_coord(FixedCord from_coord, int direction, FixedCord step) {
   if((direction == NW) || (direction < E)) from_coord.i += step.i;  //up
   if((direction > N) && (direction < S)) from_coord.r += step.r;    //right
   if((direction > E) && (direction < W)) from_coord.i -= step.i;    //down
@@ -87,11 +82,17 @@ FixedCord get_neighbor_coord(FixedCord from_coord, int direction, FixedCord step
 
 
 size_t get_neighbor_index(size_t from_pixel, int direction, struct window win) {
-  //TODO gross since window is no longer constant
+  switch(direction) {
-  int neighbor_index_accl[8] = 
+    case N:   return from_pixel - win.w;
-    {-win.w, -win.w + 1, 1, win.w + 1, win.w, win.w - 1, -1, -win.w - 1};
+    case NE:  return from_pixel - win.w + 1;
-  from_pixel += neighbor_index_accl[direction];
+    case E:   return from_pixel + 1;
-  return from_pixel;
+    case SE:  return from_pixel + win.w + 1;
+    case S:   return from_pixel + win.w;
+    case SW:  return from_pixel + win.w - 1;
+    case W:   return from_pixel - 1;
+    case NW:  return from_pixel - win.w - 1;
+  }
+  return 0;
 }
 
 void detect_borders(bool borders[8], size_t i, struct window win) {
@@ -117,8 +118,6 @@ void detect_borders(bool borders[8], size_t i, struct window win) {
   }
 }
 
-enum VIEW_MODES { VIEW_UNINIT, VIEW_MANDREL, VIEW_SHIP };
-
 void init_colorscheme(uint16_t *scheme) {
   uint16_t *tc = scheme;
   for(unsigned int i = 0; i <= ITERS; i++) {
@@ -132,15 +131,6 @@ void init_colorscheme(uint16_t *scheme) {
   scheme[ITERS] = 0;
 }
 
-void init_colorscheme_ship(uint16_t *scheme) {
-  uint16_t *tc = scheme;
-  for(unsigned int i = 0; i < ITERS; i++) {
-    if((i == 0) || (i == ITERS)) *tc = 0;
-    else *tc = (((i - (128)) << 1)+0x1f) << (5+6);
-    tc++;
-  }
-}
-
 void cam_shift(struct camera *cam, double step_r, double step_i) {
   double i_offset = (cam->max_i - cam->min_i) * step_i;
   double r_offset = (cam->max_r - cam->min_r) * step_r;
@@ -159,7 +149,7 @@ void cam_zoom(struct camera *cam, double zoom) {
   cam->max_r -= r_scale;
 }
 
-inline int  __attribute__((always_inline)) iterate(FixedCord c) {
+int iterate(FixedCord c) {
   int32_t z_i = 0;
   int32_t z_r = 0;
   int32_t z_r_2, z_i_2, zn_r, zn_i;
@@ -182,7 +172,12 @@ inline int  __attribute__((always_inline)) iterate(FixedCord c) {
 
 int iterate(FixedCord c);
 
-unsigned int mandelbrot_bordertrace(uint16_t *framebuffer, uint16_t *colorscheme, struct camera cam, const struct window win) {
+#define GET_X(index, win) (((index) % win.w) + win.x0) //TODO organize 
+#define GET_Y(index, win) ((this_index / (double)win.w) + win.y0)
+//no reason this needs to be global, this is just a last second addition and I'm in a hurry
+static bool demo = false; 
+
+unsigned int mandelbrot_bordertrace(uint16_t *framebuffer, const uint16_t *colorscheme, const struct camera cam, const struct window win) {
   unsigned int total_iters = 0;
   size_t on_pixel = 0;
   bool border_scanning = false;
@@ -214,7 +209,8 @@ unsigned int mandelbrot_bordertrace(uint16_t *framebuffer, uint16_t *colorscheme
           int i = iterate(c);
           total_iters += i;
           framebuffer[on_pixel] = colorscheme[i];
-          if(i == ITERS) {
+          if(i != ITERS) { framebuffer[on_pixel] |= GCHAN_EXTERNAL; }
+          else {
             FixedCord this_coord = c;
             size_t this_index = on_pixel;
             bool seperated_from_start = false;
@@ -237,11 +233,16 @@ unsigned int mandelbrot_bordertrace(uint16_t *framebuffer, uint16_t *colorscheme
 
 
 
-            if(nei_dir < 8) {
+            if(nei_dir >= 8) border_scanning = true;
+            else {
               while(true) {
                 bzero(nei_presort, sizeof(nei_presort));
                 bzero(nei_canidate, sizeof(nei_canidate));
                 detect_borders(borders, this_index, win);
+                if(demo) {
+                  ST7735_DrawPixel(GET_X(this_index, win), GET_Y(this_index, win), ST7735_GREEN);
+                  HAL_Delay(10);
+                }
 
                 //step 1: check pixels around us, fill in neighbors.
 
@@ -288,7 +289,7 @@ unsigned int mandelbrot_bordertrace(uint16_t *framebuffer, uint16_t *colorscheme
                   }
 
                   for(nei_edge_i = -2; nei_edge_i <= 2; nei_edge_i++) {
-                    int nei_edge_mod = mod((nei_dir + nei_edge_i), 8);
+                    int nei_edge_mod = mod8(nei_dir + nei_edge_i);
                     if((nei_presort[nei_edge_mod] == GCHAN_EXTERNAL) || borders[nei_edge_mod]) break;
                   }
 
@@ -296,7 +297,7 @@ unsigned int mandelbrot_bordertrace(uint16_t *framebuffer, uint16_t *colorscheme
                   if(nei_edge_i > 2) continue;
 
                   //narrow bridge scenario
-                  if(nei_presort[mod((nei_dir + 1), 8)] & nei_presort[mod((nei_dir - 1), 8)] & GCHAN_EXTERNAL) 
+                  if(nei_presort[mod8(nei_dir + 1)] & nei_presort[mod8(nei_dir - 1)] & GCHAN_EXTERNAL) 
                     continue;
 
                   edge_cnt++;
@@ -321,9 +322,7 @@ unsigned int mandelbrot_bordertrace(uint16_t *framebuffer, uint16_t *colorscheme
                 }
               }
             }
-            else border_scanning = true;
           }
-          else framebuffer[on_pixel] |= GCHAN_EXTERNAL;
         }
       on_pixel++;
       c.r += scale.r;
@@ -334,20 +333,19 @@ unsigned int mandelbrot_bordertrace(uint16_t *framebuffer, uint16_t *colorscheme
   return total_iters;
 }
 
-//TODO rename
+unsigned int mandelbrot_unoptimized(uint16_t *framebuffer, const uint16_t *colorscheme, const struct camera cam, const struct window win) {
-unsigned int render_mandelbrot(uint16_t *framebuffer, uint16_t *colorscheme, struct camera cam, int x0, int y0, int w, int h) {
   int32_t scale_i = DOUBLE_TO_FIXED((cam.max_i - cam.min_i) / (double)RES_Y);
   int32_t scale_r = DOUBLE_TO_FIXED((cam.max_r - cam.min_r) / (double)RES_X);
-  int32_t c_i = DOUBLE_TO_FIXED((((cam.max_i - cam.min_i) * (RES_Y - y0)) / RES_Y) + cam.min_i);
+  int32_t c_i = DOUBLE_TO_FIXED((((cam.max_i - cam.min_i) * (RES_Y - win.y0)) / RES_Y) + cam.min_i);
-  int32_t c_r0 = DOUBLE_TO_FIXED((((cam.max_r - cam.min_r) * x0) / RES_X) + cam.min_r);
+  int32_t c_r0 = DOUBLE_TO_FIXED((((cam.max_r - cam.min_r) * win.x0) / RES_X) + cam.min_r);
   int32_t c_r, z_i, z_r, zn_r, z_r_2, z_i_2;
   size_t fb_index = 0;
   int i; 
   unsigned int total_iters = 0;
 
-  for(int y = y0; y < y0 + h; y++) {
+  for(int y = win.y0; y < win.y0 + win.h; y++) {
     c_r = c_r0;
-    for(int x = x0; x < x0 + w; x++) {
+    for(int x = win.x0; x < win.x0 + win.w; x++) {
       z_i = 0;
       z_r = 0;
       for(i = 0; i < ITERS; i++) {
@@ -376,36 +374,39 @@ unsigned int render_mandelbrot(uint16_t *framebuffer, uint16_t *colorscheme, str
 #define FB_SIZE_X RES_X/2
 #define FB_SIZE_Y RES_Y
 
-//TODO rename
+
-void draw_mandelbrot() {
+void render_loop() {
   uint16_t framebuffer[FB_SIZE_X * FB_SIZE_Y];
   uint16_t columnbuffer[(size_t)(STEP_SIZE * RES_X * RES_Y)];
   uint16_t left_line = 0;
-  //program flow is awful atm becuase I was planning something different; will be improved soon.
-  /**
-  static struct camera cam = {
-    .min_r = CAM_DEF_MIN_R,
-    .max_r = CAM_DEF_MAX_R,
-    .min_i = ((double)RES_Y / RES_X) * CAM_DEF_MIN_R,
-    .max_i = ((double)RES_Y / RES_X) * CAM_DEF_MAX_R,
-  };
-  **/
 
+  uint16_t on_slide = 0; //for demo locations
+  struct camera demo_cams[] = {
+    (struct camera) {-1.422917204962495851817, -0.000225276304707995275, -1.422016598199103754041, 0.000225027077043296207},
+    (struct camera) {-1.438263106924943857123, -0.000223747558519589895, -1.436086818463690795156, 0.000864396672238325900},
+    (struct camera) {-0.090225435380407282, -0.64998091931263191, -0.088768020367418904, -0.64925221180605341},
+    (struct camera) {-1.438799496517434883813, -0.001121122635241165663, -1.434096351603858066071, 0.001230449821984478309},
+    (struct camera) {0.281321953633743959688, 0.485607916741705558650, 0.282220985515896194418, 0.486057432682865053764},
+    (struct camera) {1.463643582778787255450, -0.000020491662036057693, 1.463725101406749828925, 0.000020267651948646491}
+  };
+
+
+  
+  //TODO change before gifting any cards
   struct camera cam = {
-    .min_r = 1.511138965827779623297, .min_i = -0.000099833545397436595, .max_r = 1.513299500557251375810, .max_i = 0.000980433819429512915
+    .min_r = -0.090225435380407282,
+    .min_i = -0.64998091931263191,
+    .max_r = -0.088768020367418904,
+    .max_i = -0.64925221180605341
   };
   uint16_t colorscheme[ITERS + 1];
 
-
-  
-  /** yes, I know the following is disgusting. Before I clean it, I just wanna get the general idea out, 
-    it's more efficient in that order
-    TODO once you  get your idea ironed out, clean code **/
-  
   init_colorscheme(colorscheme);
   bzero(framebuffer, sizeof(framebuffer));
   bzero(columnbuffer, sizeof(columnbuffer));
 
+  //ggyaaaagh!!!
+  //I will clean this up later.
   while(true) {
     const int y_offset = STEP_SIZE * FB_SIZE_Y;
     const int x_offset = STEP_SIZE * RES_X;
@@ -446,14 +447,27 @@ void draw_mandelbrot() {
         cam_zoom(&cam, -ZOOM_SIZE);
         mandelbrot_bordertrace(framebuffer, colorscheme, cam, (struct window){left_line, 0, FB_SIZE_X, FB_SIZE_Y});
         break;
+      case DEMO_NEXTVIEW:
+        cam = demo_cams[(++on_slide % (sizeof(demo_cams) / sizeof(*demo_cams)))];
+        mandelbrot_bordertrace(framebuffer, colorscheme, cam, (struct window){left_line, 0, FB_SIZE_X, FB_SIZE_Y});
+        break;
+      case DEMO_LASTVIEW:
+        cam = demo_cams[(--on_slide % (sizeof(demo_cams) / sizeof(*demo_cams)))];
+        mandelbrot_bordertrace(framebuffer, colorscheme, cam, (struct window){left_line, 0, FB_SIZE_X, FB_SIZE_Y});
+        break;
+      case DEMO_BORDER:
+        demo = true;
       default:
         mandelbrot_bordertrace(framebuffer, colorscheme, cam, (struct window){left_line, 0, FB_SIZE_X, FB_SIZE_Y});
     }
-    ST7735_DrawImage(left_line, 0, FB_SIZE_X, FB_SIZE_Y, framebuffer);
+
+    if(!demo) ST7735_DrawImage(left_line, 0, FB_SIZE_X, FB_SIZE_Y, framebuffer);
 
     left_line = left_line ? 0 : FB_SIZE_X; 
     mandelbrot_bordertrace(framebuffer, colorscheme, cam, (struct window){left_line, 0, FB_SIZE_X, FB_SIZE_Y});
-    ST7735_DrawImage(left_line, 0, FB_SIZE_X, FB_SIZE_Y, framebuffer);
+    if(!demo) ST7735_DrawImage(left_line, 0, FB_SIZE_X, FB_SIZE_Y, framebuffer);
+
+    demo = false;
     idle();
   }
 }

program/stm32f1_buisnesscard_v1/Makefile

@@ -134,7 +134,7 @@ ASFLAGS = $(MCU) $(AS_DEFS) $(AS_INCLUDES) $(OPT) -Wall -fdata-sections -ffuncti
 CFLAGS += $(MCU) $(C_DEFS) $(C_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections
 
 ifeq ($(DEBUG), 1)
-CFLAGS += -ggdb -g3
+CFLAGS += -ggdb -g3 -DNAME=DEBUG_BUILD
 endif
 
 

program/stm32f1_buisnesscard_v1/benchmark.gdb

@@ -1,3 +1,4 @@
+# delete file
 file build/stm32f1_buisnesscard_v1.elf
 target extended localhost:3333 
 

program/stm32f1_buisnesscard_v1/benchmark.txt

@@ -1,531 +0,0 @@
-Breakpoint 1 at 0x8000e9a: file Core/Src/main.c, line 129.
-Note: automatically using hardware breakpoints for read-only addresses.
-Loading section .isr_vector, size 0x10c lma 0x8000000
-Loading section .text, size 0x38c0 lma 0x8000110
-Loading section .rodata, size 0x9c lma 0x80039d0
-Loading section .init_array, size 0x4 lma 0x8003a6c
-Loading section .fini_array, size 0x4 lma 0x8003a70
-Loading section .data, size 0x30 lma 0x8003a74
-Start address 0x080038e4, load size 15008
-Transfer rate: 15 KB/sec, 2501 bytes/write.
-
-Breakpoint 1, main () at Core/Src/main.c:130
-130	  HAL_SuspendTick();
-$1 = {min_r = -1, min_i = -0.5, max_r = 1, max_i = 0.5}
-$2 = {min_r = 3.1577176569116192, min_i = 0.22066305108751161, max_r = 3.1577882779434727, max_i = 0.22069836160343248}
-$3 = {min_r = 3.1576023402469482, min_i = 0.22069267606110915, max_r = 3.1576029655564359, max_i = 0.22069298871585336}
-$4 = {min_r = 1.5143340717923357, min_i = -1.4054856689592869e-05, max_r = 1.5143697529846534, max_i = 3.7857394692316253e-06}
-A debugging session is active.
-
-	Inferior 1 [Remote target] will be detached.
-
-Quit anyway? (y or n) [answered Y; input not from terminal]
-[Inferior 1 (Remote target) detached]
-Breakpoint 1 at 0x8000e9a: file Core/Src/main.c, line 129.
-Note: automatically using hardware breakpoints for read-only addresses.
-Loading section .isr_vector, size 0x10c lma 0x8000000
-Loading section .text, size 0x38c0 lma 0x8000110
-Loading section .rodata, size 0x9c lma 0x80039d0
-Loading section .init_array, size 0x4 lma 0x8003a6c
-Loading section .fini_array, size 0x4 lma 0x8003a70
-Loading section .data, size 0x30 lma 0x8003a74
-Start address 0x080038e4, load size 15008
-Transfer rate: 15 KB/sec, 2501 bytes/write.
-
-Breakpoint 1, main () at Core/Src/main.c:130
-130	  HAL_SuspendTick();
-$1 = {min_r = -1, min_i = -0.5, max_r = 1, max_i = 0.5}
-$2 = 1.31749451
-$3 = {min_r = 3.1577176569116192, min_i = 0.22066305108751161, max_r = 3.1577882779434727, max_i = 0.22069836160343248}
-$4 = 0.183570281
-$5 = {min_r = 3.1576023402469482, min_i = 0.22069267606110915, max_r = 3.1576029655564359, max_i = 0.22069298871585336}
-$6 = 0.217522398
-$7 = {min_r = 1.5143340717923357, min_i = -1.4054856689592869e-05, max_r = 1.5143697529846534, max_i = 3.7857394692316253e-06}
-$8 = 0.761290252
-A debugging session is active.
-
-	Inferior 1 [Remote target] will be detached.
-
-Quit anyway? (y or n) [answered Y; input not from terminal]
-[Inferior 1 (Remote target) detached]
-Breakpoint 1 at 0x8000e9a: file Core/Src/main.c, line 129.
-Note: automatically using hardware breakpoints for read-only addresses.
-Loading section .isr_vector, size 0x10c lma 0x8000000
-Loading section .text, size 0x38c0 lma 0x8000110
-Loading section .rodata, size 0x9c lma 0x80039d0
-Loading section .init_array, size 0x4 lma 0x8003a6c
-Loading section .fini_array, size 0x4 lma 0x8003a70
-Loading section .data, size 0x30 lma 0x8003a74
-Start address 0x080038e4, load size 15008
-Transfer rate: 15 KB/sec, 2501 bytes/write.
-
-Breakpoint 1, main () at Core/Src/main.c:130
-130	  HAL_SuspendTick();
-$1 = {min_r = -1, min_i = -0.5, max_r = 1, max_i = 0.5}
-$2 = 1.31749451
-$3 = {min_r = 3.1577176569116192, min_i = 0.22066305108751161, max_r = 3.1577882779434727, max_i = 0.22069836160343248}
-$4 = 0.183570281
-$5 = {min_r = 3.1576023402469482, min_i = 0.22069267606110915, max_r = 3.1576029655564359, max_i = 0.22069298871585336}
-$6 = 0.217522398
-$7 = {min_r = 1.5143340717923357, min_i = -1.4054856689592869e-05, max_r = 1.5143697529846534, max_i = 3.7857394692316253e-06}
-$8 = 0.761290252
-A debugging session is active.
-
-	Inferior 1 [Remote target] will be detached.
-
-Quit anyway? (y or n) [answered Y; input not from terminal]
-[Inferior 1 (Remote target) detached]
-Breakpoint 1 at 0x8000e9a: file Core/Src/main.c, line 129.
-Note: automatically using hardware breakpoints for read-only addresses.
-Loading section .isr_vector, size 0x10c lma 0x8000000
-Loading section .text, size 0x38c0 lma 0x8000110
-Loading section .rodata, size 0x9c lma 0x80039d0
-Loading section .init_array, size 0x4 lma 0x8003a6c
-Loading section .fini_array, size 0x4 lma 0x8003a70
-Loading section .data, size 0x30 lma 0x8003a74
-Start address 0x080038e4, load size 15008
-Transfer rate: 15 KB/sec, 2501 bytes/write.
-
-Breakpoint 1, main () at Core/Src/main.c:130
-130	  HAL_SuspendTick();
-$1 = {min_r = -1, min_i = -0.5, max_r = 1, max_i = 0.5}
-$2 = 1.31749451
-$3 = {min_r = 3.1577176569116192, min_i = 0.22066305108751161, max_r = 3.1577882779434727, max_i = 0.22069836160343248}
-$4 = 0.183570281
-$5 = {min_r = 3.1576023402469482, min_i = 0.22069267606110915, max_r = 3.1576029655564359, max_i = 0.22069298871585336}
-$6 = 0.217522398
-$7 = {min_r = 1.5143340717923357, min_i = -1.4054856689592869e-05, max_r = 1.5143697529846534, max_i = 3.7857394692316253e-06}
-$8 = 0.761290252
-A debugging session is active.
-
-	Inferior 1 [Remote target] will be detached.
-
-Quit anyway? (y or n) [answered Y; input not from terminal]
-[Inferior 1 (Remote target) detached]
-Breakpoint 1 at 0x8000e9a: file Core/Src/main.c, line 129.
-Note: automatically using hardware breakpoints for read-only addresses.
-Loading section .isr_vector, size 0x10c lma 0x8000000
-Loading section .text, size 0x38c0 lma 0x8000110
-Loading section .rodata, size 0x9c lma 0x80039d0
-Loading section .init_array, size 0x4 lma 0x8003a6c
-Loading section .fini_array, size 0x4 lma 0x8003a70
-Loading section .data, size 0x30 lma 0x8003a74
-Start address 0x080038e4, load size 15008
-Transfer rate: 15 KB/sec, 2501 bytes/write.
-
-Breakpoint 1, main () at Core/Src/main.c:130
-130	  HAL_SuspendTick();
-$1 = {min_r = -1, min_i = -0.5, max_r = 1, max_i = 0.5}
-$2 = 1.31749451
-$3 = {min_r = 3.1577176569116192, min_i = 0.22066305108751161, max_r = 3.1577882779434727, max_i = 0.22069836160343248}
-$4 = 0.183570281
-$5 = {min_r = 3.1576023402469482, min_i = 0.22069267606110915, max_r = 3.1576029655564359, max_i = 0.22069298871585336}
-$6 = 0.217522398
-$7 = {min_r = 1.5143340717923357, min_i = -1.4054856689592869e-05, max_r = 1.5143697529846534, max_i = 3.7857394692316253e-06}
-$8 = 0.761290252
-A debugging session is active.
-
-	Inferior 1 [Remote target] will be detached.
-
-Quit anyway? (y or n) [answered Y; input not from terminal]
-[Inferior 1 (Remote target) detached]
-Breakpoint 1 at 0x8000e9a: file Core/Src/main.c, line 129.
-Note: automatically using hardware breakpoints for read-only addresses.
-benchmark.gdb:49: Error in sourced command file:
-Error erasing flash with vFlashErase packet
-------- tip of the day (disable with set show-tips off) -------
-The set show-flags on setting will display CPU flags register in the regs context panel
-LEGEND: STACK | HEAP | CODE | DATA | WX | RODATA
-───────────────[ REGISTERS / show-flags off / show-compact-regs off ]───────────────
- R0   0
- R1   0x42420000
- R2   0x12c0c0
- R3   0x4b03
- R4   0
- R5   0x40021000
- R6   0
- R7   0x80000000
- R8   0xffff
- R9   0x1000
- R10  0x20000054
- R11  0x77bdd31d
- R12  0xf8ff
- SP   0x20005000
- LR   0xffffffff
- PC   0x80038e4
-──────────────────[ DISASM / armcm / thumb mode / set emulate on ]──────────────────
- ► 0x80038e4 <Reset_Handler>       movs   r0, r0
-   0x80038e6 <Reset_Handler+2>     movs   r0, r0
-   0x80038e8 <Reset_Handler+4>     movs   r0, r0
-   0x80038ea <Reset_Handler+6>     movs   r0, r0
-   0x80038ec <Reset_Handler+8>     movs   r0, r0
-   0x80038ee <Reset_Handler+10>    movs   r0, r0
-   0x80038f0 <Reset_Handler+12>    movs   r0, r0
-   0x80038f2 <Reset_Handler+14>    movs   r0, r0
-   0x80038f4 <Reset_Handler+16>    movs   r0, r0
-   0x80038f6 <Reset_Handler+18>    movs   r0, r0
-   0x80038f8 <Reset_Handler+20>    movs   r0, r0
-─────────────────────────────────[ SOURCE (CODE) ]──────────────────────────────────
-In file: /home/indigo/projects/stm32_buisnesscard/program/stm32f1_buisnesscard_v1/startup_stm32f103xb.s:64
-   59   .weak Reset_Handler
-   60   .type Reset_Handler, %function
-   61 Reset_Handler:
-   62 
-   63 /* Call the clock system initialization function.*/
- ► 64     bl  SystemInit
-   65 
-   66 /* Copy the data segment initializers from flash to SRAM */
-   67   ldr r0, =_sdata
-   68   ldr r1, =_edata
-   69   ldr r2, =_sidata
-─────────────────────────────────────[ STACK ]──────────────────────────────────────
-00:0000│ sp 0x20005000
-... ↓       7 skipped
-───────────────────────────────────[ BACKTRACE ]────────────────────────────────────
- ► 0 0x80038e4 Reset_Handler
-────────────────────────────────────────────────────────────────────────────────────
-Continuing.
-target not halted
-target stm32f1x.cpu was not halted when resume was requested
-Halt timed out, wake up GDB.
-
-Program received signal SIGINT, Interrupt.
-Reset_Handler () at startup_stm32f103xb.s:64
-64	    bl  SystemInit
-LEGEND: STACK | HEAP | CODE | DATA | WX | RODATA
-───────────────[ REGISTERS / show-flags off / show-compact-regs off ]───────────────
- R0   0
- R1   0x42420000
- R2   0x12c0c0
- R3   0x4b03
- R4   0
- R5   0x40021000
- R6   0
- R7   0x80000000
- R8   0xffff
- R9   0x1000
- R10  0x20000054
- R11  0x77bdd31d
- R12  0xf8ff
- SP   0x20005000
- LR   0xffffffff
- PC   0x80038e4
-──────────────────[ DISASM / armcm / thumb mode / set emulate on ]──────────────────
- ► 0x80038e4 <Reset_Handler>       movs   r0, r0
-   0x80038e6 <Reset_Handler+2>     movs   r0, r0
-   0x80038e8 <Reset_Handler+4>     movs   r0, r0
-   0x80038ea <Reset_Handler+6>     movs   r0, r0
-   0x80038ec <Reset_Handler+8>     movs   r0, r0
-   0x80038ee <Reset_Handler+10>    movs   r0, r0
-   0x80038f0 <Reset_Handler+12>    movs   r0, r0
-   0x80038f2 <Reset_Handler+14>    movs   r0, r0
-   0x80038f4 <Reset_Handler+16>    movs   r0, r0
-   0x80038f6 <Reset_Handler+18>    movs   r0, r0
-   0x80038f8 <Reset_Handler+20>    movs   r0, r0
-─────────────────────────────────[ SOURCE (CODE) ]──────────────────────────────────
-In file: /home/indigo/projects/stm32_buisnesscard/program/stm32f1_buisnesscard_v1/startup_stm32f103xb.s:64
-   59   .weak Reset_Handler
-   60   .type Reset_Handler, %function
-   61 Reset_Handler:
-   62 
-   63 /* Call the clock system initialization function.*/
- ► 64     bl  SystemInit
-   65 
-   66 /* Copy the data segment initializers from flash to SRAM */
-   67   ldr r0, =_sdata
-   68   ldr r1, =_edata
-   69   ldr r2, =_sidata
-─────────────────────────────────────[ STACK ]──────────────────────────────────────
-00:0000│ sp 0x20005000
-... ↓       7 skipped
-───────────────────────────────────[ BACKTRACE ]────────────────────────────────────
- ► 0 0x80038e4 Reset_Handler
-────────────────────────────────────────────────────────────────────────────────────
-Continuing.
-target not halted
-target stm32f1x.cpu was not halted when resume was requested
-The target is not running when halt was requested, stopping GDB.
-
-Program received signal SIGINT, Interrupt.
-Reset_Handler () at startup_stm32f103xb.s:64
-64	    bl  SystemInit
-LEGEND: STACK | HEAP | CODE | DATA | WX | RODATA
-───────────────[ REGISTERS / show-flags off / show-compact-regs off ]───────────────
- R0   0
- R1   0x42420000
- R2   0x12c0c0
- R3   0x4b03
- R4   0
- R5   0x40021000
- R6   0
- R7   0x80000000
- R8   0xffff
- R9   0x1000
- R10  0x20000054
- R11  0x77bdd31d
- R12  0xf8ff
- SP   0x20005000
- LR   0xffffffff
- PC   0x80038e4
-──────────────────[ DISASM / armcm / thumb mode / set emulate on ]──────────────────
- ► 0x80038e4 <Reset_Handler>       movs   r0, r0
-   0x80038e6 <Reset_Handler+2>     movs   r0, r0
-   0x80038e8 <Reset_Handler+4>     movs   r0, r0
-   0x80038ea <Reset_Handler+6>     movs   r0, r0
-   0x80038ec <Reset_Handler+8>     movs   r0, r0
-   0x80038ee <Reset_Handler+10>    movs   r0, r0
-   0x80038f0 <Reset_Handler+12>    movs   r0, r0
-   0x80038f2 <Reset_Handler+14>    movs   r0, r0
-   0x80038f4 <Reset_Handler+16>    movs   r0, r0
-   0x80038f6 <Reset_Handler+18>    movs   r0, r0
-   0x80038f8 <Reset_Handler+20>    movs   r0, r0
-─────────────────────────────────[ SOURCE (CODE) ]──────────────────────────────────
-In file: /home/indigo/projects/stm32_buisnesscard/program/stm32f1_buisnesscard_v1/startup_stm32f103xb.s:64
-   59   .weak Reset_Handler
-   60   .type Reset_Handler, %function
-   61 Reset_Handler:
-   62 
-   63 /* Call the clock system initialization function.*/
- ► 64     bl  SystemInit
-   65 
-   66 /* Copy the data segment initializers from flash to SRAM */
-   67   ldr r0, =_sdata
-   68   ldr r1, =_edata
-   69   ldr r2, =_sidata
-─────────────────────────────────────[ STACK ]──────────────────────────────────────
-00:0000│ sp 0x20005000
-... ↓       7 skipped
-───────────────────────────────────[ BACKTRACE ]────────────────────────────────────
- ► 0 0x80038e4 Reset_Handler
-────────────────────────────────────────────────────────────────────────────────────
-Error erasing flash with vFlashErase packet
-Detaching from program: /home/indigo/projects/stm32_buisnesscard/program/stm32f1_buisnesscard_v1/build/stm32f1_buisnesscard_v1.elf, Remote target
-[Inferior 1 (Remote target) detached]
-Breakpoint 1 at 0x8000e9a: file Core/Src/main.c, line 129.
-Note: automatically using hardware breakpoints for read-only addresses.
-benchmark.gdb:49: Error in sourced command file:
-Error erasing flash with vFlashErase packet
-------- tip of the day (disable with set show-tips off) -------
-Use the pipe <cmd> | <prog> command to pass output of a GDB/Pwndbg command to a shell program, e.g. pipe elfsections | grep bss. This can also be shortened to: | <cmd> | <prog>
-LEGEND: STACK | HEAP | CODE | DATA | WX | RODATA
-───────────────[ REGISTERS / show-flags off / show-compact-regs off ]───────────────
- R0   0x40
- R1   0x80
- R2   1
- R3   0x20003548
- R4   0x97
- R5   6
- R6   0x8003a20
- R7   0
- R8   0xffff
- R9   0x1000
- R10  0x20000054
- R11  0x77bdd31d
- R12  0
- SP   0x20005000
- LR   0xffffffff
- PC   0x80038e4
-──────────────────[ DISASM / armcm / thumb mode / set emulate on ]──────────────────
- ► 0x80038e4 <Reset_Handler>       bl     #SystemInit                 <SystemInit>
- 
-   0x80038e8 <Reset_Handler+4>     ldr    r0, [pc, #0x2c]     R0, [LoopFillZerobss+14]
-   0x80038ea <Reset_Handler+6>     ldr    r1, [pc, #0x30]     R1, [LoopFillZerobss+18]
-   0x80038ec <Reset_Handler+8>     ldr    r2, [pc, #0x30]     R2, [LoopFillZerobss+22]
-   0x80038ee <Reset_Handler+10>    movs   r3, #0              R3 => 0
-   0x80038f0 <Reset_Handler+12>    b      #Reset_Handler+20           <Reset_Handler+20>
-    ↓
-   0x80038f8 <Reset_Handler+20>    adds   r4, r0, r3
-   0x80038fa <Reset_Handler+22>    cmp    r4, r1
-   0x80038fc <Reset_Handler+24>    blo    #Reset_Handler+14           <Reset_Handler+14>
- 
-   0x80038fe <Reset_Handler+26>    ldr    r2, [pc, #0x24]     R2, [LoopFillZerobss+26]
-   0x8003900 <Reset_Handler+28>    ldr    r4, [pc, #0x24]     R4, [LoopFillZerobss+30]
-─────────────────────────────────[ SOURCE (CODE) ]──────────────────────────────────
-In file: /home/indigo/projects/stm32_buisnesscard/program/stm32f1_buisnesscard_v1/startup_stm32f103xb.s:64
-   59   .weak Reset_Handler
-   60   .type Reset_Handler, %function
-   61 Reset_Handler:
-   62 
-   63 /* Call the clock system initialization function.*/
- ► 64     bl  SystemInit
-   65 
-   66 /* Copy the data segment initializers from flash to SRAM */
-   67   ldr r0, =_sdata
-   68   ldr r1, =_edata
-   69   ldr r2, =_sidata
-─────────────────────────────────────[ STACK ]──────────────────────────────────────
-00:0000│ sp 0x20005000
-... ↓       7 skipped
-───────────────────────────────────[ BACKTRACE ]────────────────────────────────────
- ► 0 0x80038e4 Reset_Handler
-────────────────────────────────────────────────────────────────────────────────────
-Continuing.
-target not halted
-target stm32f1x.cpu was not halted when resume was requested
-
-Program received signal SIGINT, Interrupt.
-0x08003428 in HAL_PWR_EnterSLEEPMode (Regulator=Regulator@entry=1, SLEEPEntry=SLEEPEntry@entry=1 '\001') at Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pwr.c:432
-432	    __WFI();
-LEGEND: STACK | HEAP | CODE | DATA | WX | RODATA
-───────────────[ REGISTERS / show-flags off / show-compact-regs off ]───────────────
-*R0   1
-*R1   1
-*R2   0xe000ed00
-*R3   0
-*R4   0x2000009c
-*R5   1
-*R6   0
-*R7   0x2000004c
- R8   0xffff
- R9   0x1000
- R10  0x20000054
- R11  0x77bdd31d
- R12  0
-*SP   0x20004fc0
- LR   0x8000ea7
-*PC   0x8003428
-──────────────────[ DISASM / armcm / thumb mode / set emulate on ]──────────────────
- ► 0x8003428 <HAL_PWR_EnterSLEEPMode+24>    bx     lr                          <main+478>
-    ↓
-   0x8000ea6 <main+478>                     ldr    r5, [pc, #0x7c]     R5, [main+604]
-   0x8000ea8 <main+480>                     ldrb   r3, [r5]            R3, [button_event]
-   0x8000eaa <main+482>                   ✔ cbz    r3, #main+534               <main+534>
-    ↓
-   0x8000ede <main+534>                     bl     #HAL_SuspendTick            <HAL_SuspendTick>
- 
-   0x8000ee2 <main+538>                     movs   r1, #1              R1 => 1
-   0x8000ee4 <main+540>                     mov    r0, r1
-   0x8000ee6 <main+542>                     bl     #HAL_PWR_EnterSTOPMode      <HAL_PWR_EnterSTOPMode>
- 
-   0x8000eea <main+546>                     bl     #SystemClock_Config         <SystemClock_Config>
- 
-   0x8000eee <main+550>                     bl     #HAL_ResumeTick             <HAL_ResumeTick>
- 
-   0x8000ef2 <main+554>                     bl     #ST7735_wake                <ST7735_wake>
-─────────────────────────────────[ SOURCE (CODE) ]──────────────────────────────────
-In file: /home/indigo/projects/stm32_buisnesscard/program/stm32f1_buisnesscard_v1/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pwr.c:432
-   427 
-   428   /* Select SLEEP mode entry -------------------------------------------------*/
-   429   if(SLEEPEntry == PWR_SLEEPENTRY_WFI)
-   430   {
-   431     /* Request Wait For Interrupt */
- ► 432     __WFI();
-   433   }
-   434   else
-   435   {
-   436     /* Request Wait For Event */
-   437     __SEV();
-─────────────────────────────────────[ STACK ]──────────────────────────────────────
-00:0000│ sp 0x20004fc0
-01:0004│    0x20004fc4
-02:0008│    0x20004fc8
-... ↓       3 skipped
-06:0018│    0x20004fd8
-07:001c│    0x20004fdc
-───────────────────────────────────[ BACKTRACE ]────────────────────────────────────
- ► 0 0x8003428 HAL_PWR_EnterSLEEPMode+24
-   1 0x8000ea6 main+478
-   2 0x8003916 Reset_Handler+50
-────────────────────────────────────────────────────────────────────────────────────
-Error erasing flash with vFlashErase packet
-Error erasing flash with vFlashErase packet
-Detaching from program: /home/indigo/projects/stm32_buisnesscard/program/stm32f1_buisnesscard_v1/build/stm32f1_buisnesscard_v1.elf, Remote target
-[Inferior 1 (Remote target) detached]
-Breakpoint 1 at 0x8000e9a: file Core/Src/main.c, line 129.
-Note: automatically using hardware breakpoints for read-only addresses.
-benchmark.gdb:49: Error in sourced command file:
-Error erasing flash with vFlashErase packet
-------- tip of the day (disable with set show-tips off) -------
-Use contextprev and contextnext to display a previous context output again without scrolling
-LEGEND: STACK | HEAP | CODE | DATA | WX | RODATA
-───────────────[ REGISTERS / show-flags off / show-compact-regs off ]───────────────
- R0   1
- R1   1
- R2   0x40007000
- R3   4
- R4   0xe000ed00
- R5   0x20000050
- R6   0
- R7   0x2000004c
- R8   0xffff
- R9   0x1000
- R10  0x20000054
- R11  0x77bdd31d
- R12  0
- SP   0x20005000
- LR   0xffffffff
- PC   0x80038e4
-──────────────────[ DISASM / armcm / thumb mode / set emulate on ]──────────────────
- ► 0x80038e4 <Reset_Handler>       movs   r0, r0
-   0x80038e6 <Reset_Handler+2>     movs   r0, r0
-   0x80038e8 <Reset_Handler+4>     movs   r0, r0
-   0x80038ea <Reset_Handler+6>     movs   r0, r0
-   0x80038ec <Reset_Handler+8>     movs   r0, r0
-   0x80038ee <Reset_Handler+10>    movs   r0, r0
-   0x80038f0 <Reset_Handler+12>    movs   r0, r0
-   0x80038f2 <Reset_Handler+14>    movs   r0, r0
-   0x80038f4 <Reset_Handler+16>    movs   r0, r0
-   0x80038f6 <Reset_Handler+18>    movs   r0, r0
-   0x80038f8 <Reset_Handler+20>    movs   r0, r0
-─────────────────────────────────[ SOURCE (CODE) ]──────────────────────────────────
-In file: /home/indigo/projects/stm32_buisnesscard/program/stm32f1_buisnesscard_v1/startup_stm32f103xb.s:64
-   59   .weak Reset_Handler
-   60   .type Reset_Handler, %function
-   61 Reset_Handler:
-   62 
-   63 /* Call the clock system initialization function.*/
- ► 64     bl  SystemInit
-   65 
-   66 /* Copy the data segment initializers from flash to SRAM */
-   67   ldr r0, =_sdata
-   68   ldr r1, =_edata
-   69   ldr r2, =_sidata
-─────────────────────────────────────[ STACK ]──────────────────────────────────────
-00:0000│ sp 0x20005000
-... ↓       7 skipped
-───────────────────────────────────[ BACKTRACE ]────────────────────────────────────
- ► 0 0x80038e4 Reset_Handler
-────────────────────────────────────────────────────────────────────────────────────
-Error erasing flash with vFlashErase packet
-Continuing.
-target not halted
-target stm32f1x.cpu was not halted when resume was requested
-shutdown command invoked
-Remote connection closed
-Breakpoint 1 at 0x8000e9a: file Core/Src/main.c, line 129.
-Note: automatically using hardware breakpoints for read-only addresses.
-Loading section .isr_vector, size 0x10c lma 0x8000000
-Loading section .text, size 0x38c0 lma 0x8000110
-Loading section .rodata, size 0x9c lma 0x80039d0
-Loading section .init_array, size 0x4 lma 0x8003a6c
-Loading section .fini_array, size 0x4 lma 0x8003a70
-Loading section .data, size 0x30 lma 0x8003a74
-Start address 0x080038e4, load size 15008
-Transfer rate: 14 KB/sec, 2501 bytes/write.
-
-Breakpoint 1, main () at Core/Src/main.c:130
-130	  HAL_SuspendTick();
-Breakpoint 1 at 0x8000e9a: file Core/Src/main.c, line 129.
-Note: automatically using hardware breakpoints for read-only addresses.
-Loading section .isr_vector, size 0x10c lma 0x8000000
-Loading section .text, size 0x38c0 lma 0x8000110
-Loading section .rodata, size 0x9c lma 0x80039d0
-Loading section .init_array, size 0x4 lma 0x8003a6c
-Loading section .fini_array, size 0x4 lma 0x8003a70
-Loading section .data, size 0x30 lma 0x8003a74
-Start address 0x080038e4, load size 15008
-Transfer rate: 15 KB/sec, 2501 bytes/write.
-
-Breakpoint 1, main () at Core/Src/main.c:130
-130	  HAL_SuspendTick();
-$1 = {min_r = -1, min_i = -0.5, max_r = 1, max_i = 0.5}
-$2 = 1.31749451
-$3 = {min_r = 3.1577176569116192, min_i = 0.22066305108751161, max_r = 3.1577882779434727, max_i = 0.22069836160343248}
-$4 = 0.183570281
-$5 = {min_r = 3.1576023402469482, min_i = 0.22069267606110915, max_r = 3.1576029655564359, max_i = 0.22069298871585336}
-$6 = 0.217522398
-$7 = {min_r = 1.5143340717923357, min_i = -1.4054856689592869e-05, max_r = 1.5143697529846534, max_i = 3.7857394692316253e-06}
-$8 = 0.761290252
-Quit
-Detaching from program: /home/indigo/projects/stm32_buisnesscard/program/stm32f1_buisnesscard_v1/build/stm32f1_buisnesscard_v1.elf, Remote target
-Remote connection closed

program/stm32f1_buisnesscard_v1/makefile.backup

@@ -1,201 +0,0 @@
-##########################################################################################################################
-# File automatically-generated by tool: [projectgenerator] version: [4.5.0-RC5] date: [Sun Apr 27 01:38:15 CDT 2025] 
-##########################################################################################################################
-
-# ------------------------------------------------
-# Generic Makefile (based on gcc)
-#
-# ChangeLog :
-#	2017-02-10 - Several enhancements + project update mode
-#   2015-07-22 - first version
-# ------------------------------------------------
-
-######################################
-# target
-######################################
-TARGET = stm32f1_buisnesscard_v1
-
-
-######################################
-# building variables
-######################################
-# debug build?
-DEBUG = 1
-# optimization
-OPT = -Og -Wall 
-
-
-#######################################
-# paths
-#######################################
-# Build path
-BUILD_DIR = build
-
-######################################
-# source
-######################################
-# C sources
-C_SOURCES =  \
-Core/Src/main.c \
-Core/Src/stm32f1xx_it.c \
-Core/Src/stm32f1xx_hal_msp.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_spi.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_cortex.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pwr.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash_ex.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_exti.c \
-Core/Src/system_stm32f1xx.c \
-Core/Src/sysmem.c \
-Core/Src/syscalls.c \
-Core/Src/st7735.c \
-Core/Src/fonts.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim.c \
-Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim_ex.c \
-#Core/Src/mandelbrot.c
-# ASM sources
-# ASM sources# ASM sources# ASM sources# ASM sourcesASM_SOURCES =  \
-startup_stm32f103xb.s
-
-# ASM sources
-ASMM_SOURCES = 
-
-
-#######################################
-# binaries
-#######################################
-PREFIX = arm-none-eabi-
-# The gcc compiler bin path can be either defined in make command via GCC_PATH variable (> make GCC_PATH=xxx)
-# either it can be added to the PATH environment variable.
-ifdef GCC_PATH
-CC = $(GCC_PATH)/$(PREFIX)gcc
-AS = $(GCC_PATH)/$(PREFIX)gcc -x assembler-with-cpp
-CP = $(GCC_PATH)/$(PREFIX)objcopy
-SZ = $(GCC_PATH)/$(PREFIX)size
-else
-CC = $(PREFIX)gcc
-AS = $(PREFIX)gcc -x assembler-with-cpp
-CP = $(PREFIX)objcopy
-SZ = $(PREFIX)size
-endif
-HEX = $(CP) -O ihex
-BIN = $(CP) -O binary -S
- 
-#######################################
-# CFLAGS
-#######################################
-# cpu
-CPU = -mcpu=cortex-m3
-
-# fpu
-# NONE for Cortex-M0/M0+/M3
-
-# float-abi
-
-
-# mcu
-MCU = $(CPU) -mthumb $(FPU) $(FLOAT-ABI)
-
-# macros for gcc
-# AS defines
-AS_DEFS = 
-
-# C defines
-C_DEFS =  \
--DUSE_HAL_DRIVER \
--DSTM32F103xB
-
-
-# AS includes
-AS_INCLUDES = 
-
-# C includes
-C_INCLUDES =  \
--ICore/Inc \
--IDrivers/STM32F1xx_HAL_Driver/Inc \
--IDrivers/STM32F1xx_HAL_Driver/Inc/Legacy \
--IDrivers/CMSIS/Device/ST/STM32F1xx/Include \
--IDrivers/CMSIS/Include
-
-
-# compile gcc flags
-ASFLAGS = $(MCU) $(AS_DEFS) $(AS_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections
-
-CFLAGS += $(MCU) $(C_DEFS) $(C_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections
-
-ifeq ($(DEBUG), 1)
-CFLAGS += -ggdb
-endif
-
-
-# Generate dependency information
-CFLAGS += -MMD -MP -MF"$(@:%.o=%.d)"
-
-
-#######################################
-# LDFLAGS
-#######################################
-# link script
-LDSCRIPT = stm32f103c8tx_flash.ld
-
-# libraries
-LIBS = -lc -lm -lnosys 
-LIBDIR = 
-#LDFLAGS = $(MCU) -specs=nano.specs -T$(LDSCRIPT) $(LIBDIR) $(LIBS) -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref -Wl,--gc-sections
-LDFLAGS = $(MCU) -ggdb -specs=nano.specs -T$(LDSCRIPT) $(LIBDIR) $(LIBS) -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref
-
-# default action: build all
-all: $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).hex $(BUILD_DIR)/$(TARGET).bin
-
-
-#######################################
-# build the application
-#######################################
-# list of objects
-OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(C_SOURCES:.c=.o)))
-vpath %.c $(sort $(dir $(C_SOURCES)))
-# list of ASM program objects
-OBJECTS += $(addprefix $(BUILD_DIR)/,$(notdir $(ASM_SOURCES:.s=.o)))
-vpath %.s $(sort $(dir $(ASM_SOURCES)))
-OBJECTS += $(addprefix $(BUILD_DIR)/,$(notdir $(ASMM_SOURCES:.S=.o)))
-vpath %.S $(sort $(dir $(ASMM_SOURCES)))
-
-$(BUILD_DIR)/%.o: %.c Makefile | $(BUILD_DIR) 
-	$(CC) -c $(CFLAGS) -Wa,-a,-ad,-alms=$(BUILD_DIR)/$(notdir $(<:.c=.lst)) $< -o $@
-
-$(BUILD_DIR)/%.o: %.s Makefile | $(BUILD_DIR)
-	$(AS) -c $(CFLAGS) $< -o $@
-$(BUILD_DIR)/%.o: %.S Makefile | $(BUILD_DIR)
-	$(AS) -c $(CFLAGS) $< -o $@
-
-$(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) Makefile
-	$(CC) $(CFLAGS) $(OBJECTS) $(LDFLAGS) -o $@
-	$(SZ) $@
-
-$(BUILD_DIR)/%.hex: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
-	$(HEX) $< $@
-	
-$(BUILD_DIR)/%.bin: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
-	$(BIN) $< $@	
-	
-$(BUILD_DIR):
-	mkdir $@		
-
-#######################################
-# clean up
-#######################################
-clean:
-	-rm -fR $(BUILD_DIR)
-  
-#######################################
-# dependencies
-#######################################
--include $(wildcard $(BUILD_DIR)/*.d)
-
-# *** EOF ***

program/stm32f1_buisnesscard_v1/optimization_results

@@ -0,0 +1,7 @@
+before mod change
+$3 = {0.441072255, 0.427796572, 0.214012727, 1.09791195, 1.38234675, 0.860323548, 0.396820068}
+$4 = {0.786849678, 1.75887191, 0.250482649, 2.17491865, 2.08977127, 1.37807417, 2.25014758}
+
+{0.439698875, 0.42016688, 0.212486804, 1.10897517, 1.41301811, 0.844758987, 0.392089635}
+
+

program/stm32f1_buisnesscard_v1/optimizations

@@ -1,4 +0,0 @@
-border tracing - 255 iter only!
-frame shift
-  change: side that has most iterations is the saved fb
-benchamrking: make shift benchmark

program/stm32f1_buisnesscard_v1/todo

@@ -0,0 +1,6 @@
+up + down + 2 secs: enable debug mode
+  right: go to next slide
+  up: show border tracing
+
+enable zoom/pan limits
+

recon/mandelbrot_tests/c/backup

@@ -1,793 +0,0 @@
-/** READ BEFORE JUDING!
- * Yes, I know this code is a mess. Debug code is added
- * happhazardly, two cameras are used, etc.
- * That's because it's a temporary program
- * to create optimizations and debug rendering issues without hardware.
- * None of this is going to be included in the project, and the code is thus
- * not extensible or organized; it really doesn't save any effort to do so.
- *
- * This code is meant for my eyes only. You've been warned!
- *
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <raylib.h>
-#include <raymath.h>
-#include <limits.h>
-#include <complex.h>
-#include <string.h>
-#include <unistd.h>
-#include <time.h>
-
-#define WINDOW_SIZE_X     1600
-#define WINDOW_SIZE_Y     800
-#define RES_X             160
-#define RES_Y             80
-#define DEFAULT_CENTER_X  0
-#define DEFAULT_CENTER_Y  0
-#define MOUSE_BUTTON      0
-#define STEP_SIZE         .1
-#define ZOOM_SIZE         .1
-
-
-#define DECIMAL_LOC           28
-#define DOUBLE_SCALER         (1 << DECIMAL_LOC)
-#define DOUBLE_TO_FIXED(val)  (int32_t)((val) * DOUBLE_SCALER)
-#define FIXED_MULTIPLY(x,y)   ((((uint64_t)(x))*(y)) >> DECIMAL_LOC)
-#define FIXED_TO_DOUBLE(val)  ((val) / (double)DOUBLE_SCALER)
-
-#define INFTY     2
-#define INFTY_SQR INFTY * INFTY
-#define ITERS     255
-#define INFTY_SQR_FIXED DOUBLE_TO_FIXED(INFTY_SQR)
-
-//#define SHIP
-//#undef SHIP
-//#define COLOR_DEBUG
-
-Color get_color_dbg(int i) {
-  if(i == ITERS) return (Color){0,0,255,255};
-//  if(i == 0) return (Color){255,255,255,255};
-  return (Color){255,0,255,255};
-}
-  
-
-#ifdef COLOR_DEBUG
-#elif SHIP
-Color get_color(int i) {
-  if(i == ITERS) return (Color){0, 0, 0, 255};
-  if(i == 0) return (Color){0, 0, 0, 255};
-    return (Color) {
-        2*(i - 128)+255,
-          0,
-          0,
-        255
-    };
-}
-#else
-Color get_color(int i) {
-//  if((i == ITERS) || (i == 0)) return (Color){0, 0, 0, 255};
-  if(i == ITERS) return (Color){0,0,0,255};
-  if(i == 0) return (Color){0,0,1,255};
-  if(i < 128) {
-    return (Color) {
-        (8*(i - 128)+255) & 0xff,
-        0,
-        (16*(i - 64)+255) & 0xff,
-        255
-    };
-  }
-    return (Color) {
-      0,
-        0,
-      ((unsigned int)-2*(i - 128)+255) & 0xff,
-        255
-    };
-}
-#endif
-
-//C does remainder, not modulo.
-//TODO optimize for mod 8
-inline int mod(int n, int d) {
-  int r = n % d;
-  return (r < 0) ? r + d : r;
-}
-int mod(int n, int d);
-
-
-struct camera {
-  double min_r, min_i, max_r, max_i;
-};
-
-typedef struct {
-  int32_t r; int32_t i;
-} FixedCord;
-
-static inline int iterate(FixedCord c) {
-  int32_t z_i = 0;
-  int32_t z_r = 0;
-  int32_t z_r_2, z_i_2, zn_r, zn_i;
-  for(int it = 0; it < ITERS; it++) {
-    z_r_2 = FIXED_MULTIPLY(z_r, z_r);
-    z_i_2 = FIXED_MULTIPLY(z_i, z_i);
-
-    zn_r = z_r_2 - z_i_2 + c.r;
-
-#ifdef SHIP
-    zn_i = abs(FIXED_MULTIPLY((DOUBLE_TO_FIXED(2)), (FIXED_MULTIPLY(z_r, z_i)))) + c.i;
-#else
-    zn_i = (FIXED_MULTIPLY((DOUBLE_TO_FIXED(2)), (FIXED_MULTIPLY(z_r, z_i)))) + c.i;
-#endif
-
-    z_i = zn_i;
-    z_r = zn_r;
-
-    if(z_i_2 + z_r_2 > INFTY_SQR_FIXED) return it;
-  }
-  return ITERS;
-}
-
-//blllluuuuurg, matracies and vectors in raylib are floats and we need doubles
-void shift_cam(struct camera *cam, double step_r, double step_i) {
-  double i_offset = (cam->max_i - cam->min_i) * step_i;
-  double r_offset = (cam->max_r - cam->min_r) * step_r;
-  cam->min_i += i_offset;
-  cam->max_i += i_offset;
-  cam->min_r += r_offset;
-  cam->max_r += r_offset;
-}
-
-void zoom_cam(struct camera *cam, double zoom) {
-  double i_scale = (cam->max_i - cam->min_i) * zoom;
-  double r_scale = (cam->max_r - cam->min_r) * zoom;
-  cam->min_i += i_scale;
-  cam->max_i -= i_scale;
-  cam->min_r += r_scale;
-  cam->max_r -= r_scale;
-}
-
-enum DIRECTIONS {
-  N, NE, E, SE, S, SW, W, NW
-};
-
-
-//we can inline these if needed
-
-inline bool bitarray_check(uint8_t *array, size_t i) {
-  return array[i/8] & (1 << (i%8));
-}
-
-inline void bitarray_set(uint8_t *array, size_t i) {
-  array[i/8] |= (1 << (i%8));
-}
-
-inline FixedCord get_neighbor_coord(FixedCord from_coord, int direction, FixedCord step) {
-  if((direction == NW) || (direction < E)) from_coord.i += step.i;
-  if((direction > N) && (direction < S)) from_coord.r += step.r;
-  if((direction > E) && (direction < W)) from_coord.i -= step.i;
-  if(direction > S) from_coord.r -= step.r;
-  return from_coord;
-}
-FixedCord get_neighbor_coord(FixedCord from_coord, int direction, FixedCord step);
-
-
-size_t get_neighbor_index(size_t from_pixel, int direction) {
-  const int neighbor_index_accl[8] = 
-    {-RES_X, -RES_X + 1, 1, RES_X + 1, RES_X, RES_X - 1, -1, -RES_X - 1};
-  from_pixel += neighbor_index_accl[direction];
-  //canidate for optimization; lots of branches. maybe inline
-  return from_pixel;
-}
-
-//we'll be storing info in the green channel to utalize available memory 
-//per pixel.
-
-#define BACKSTACK_SIZE      32
-#define GCHAN_UNRENDERED    0 //don't change; green channel zero'd on cam move
-#define GCHAN_BLOCKED       (1 << 7) //interior element or visiteed
-#define GCHAN_INTERNAL      (1 << 5) //part of set, 0x20
-#define GCHAN_EXTERNAL      (1 << 0) //not part of set, 0x10
-#define GCHAN_INNER_VISITED (1 << 3)
-#define GCHAN_INNER_CLOSED  (1 << 2)
-
-
-/**
-void switch_pixel(coord &this_coord, const coord step, size_t this_index, int dir) {
-
-}
-**/
-
-void debug_step(Color *pix, Texture *tex, size_t index, bool pause) {
-  return;
-//        SetTargetFPS(0);
-  static bool fuckin_manual_pause_iguess = false;
-  static Camera2D cam = {0};
-  if(!cam.zoom) cam.zoom = (float)GetRenderWidth()/RES_X;
-  static int debug_color = 0;
-  const float dbg_cam_step = 100;
-  const float dbg_cam_zoom = 1.5;
-
-  (pause || fuckin_manual_pause_iguess) ? SetTargetFPS(60) : SetTargetFPS(0);
-
-  
-
-  for(;;) {
-    switch(GetKeyPressed()) {
-      case KEY_UP:
-        cam.offset.y += dbg_cam_step;
-        break;
-      case KEY_DOWN:
-        cam.offset.y -= dbg_cam_step;
-        break;
-      case KEY_RIGHT:
-        cam.offset.x += dbg_cam_step;
-        break;
-      case KEY_LEFT:
-        cam.offset.x -= dbg_cam_step;
-        break;
-      case KEY_W:
-        cam.zoom *= dbg_cam_zoom;
-        break;
-      case KEY_S:
-        cam.zoom /= dbg_cam_zoom;
-        break;
-      case KEY_SPACE:
-        Vector2 mouse_pos = Vector2Multiply(GetMousePosition(), (Vector2){(double)RES_X / WINDOW_SIZE_X, (double)RES_Y / WINDOW_SIZE_Y});
-        //mouse_pos = Vector2Divide(mouse_pos, (Vector2){cam.zoom, cam.zoom});
-        printf("%f, %f (%lu)\n", mouse_pos.x, mouse_pos.y, ((size_t)mouse_pos.y * RES_X) + (size_t)mouse_pos.x);
-        break;
-      case KEY_ENTER:
-        return;
-      default:
-        BeginDrawing();
-        pix[index] = 
-          (Color) {debug_color, pix[index].g, 0, 255};
-        BeginDrawing();
-        UpdateTexture(*tex, pix);
-        DrawTextureEx(*tex, (Vector2)
-            {0 - cam.offset.x, cam.offset.y}, 0, 
-            cam.zoom, WHITE);
-        EndDrawing();
-        if(!pause && !fuckin_manual_pause_iguess) return;
-    }
-  }
-}
-
-//only need four indecies, however we use 8 because it's more convinient. 
-void detect_borders(bool borders[8], size_t i) {
-  //if this is too slow, it's easy to do it without the modulos.
-  int index_mod = i % RES_X;
-  bzero(borders, sizeof(*borders) * 8);
-  if((i + RES_X) > (RES_X * RES_Y)) {
-    for(int nei_dir = SE; nei_dir <= SW; nei_dir++)
-      borders[nei_dir] = GCHAN_EXTERNAL;
-  }
-  else if(((int)i - RES_X) < 0) {
-    borders[NE] = GCHAN_EXTERNAL;
-    borders[N] = GCHAN_EXTERNAL;
-    borders[NW] = GCHAN_EXTERNAL;
-  }
-  if(index_mod == 0) {
-    for(int nei_dir = SW; nei_dir < NW; nei_dir++)
-      borders[nei_dir] = GCHAN_EXTERNAL;
-  }
-  else if(index_mod == (RES_X - 1)) {
-    for(int nei_dir = NE; nei_dir < SE; nei_dir++)
-      borders[nei_dir] = GCHAN_EXTERNAL;
-  }
-
-            /**
-            //runs into occational percision issues
-            if((this_coord.i - scale.i) <= cam_bord_fixed_s) {
-            for(int nei_dir = SE; nei_dir <= SW; nei_dir++)
-            nei_presort[nei_dir] = GCHAN_EXTERNAL;
-            }
-            else if((this_coord.i + scale.i) >= cam_bord_fixed_n) {
-            printf("bruh\n");
-            nei_presort[NE] = GCHAN_EXTERNAL;
-            nei_presort[N] = GCHAN_EXTERNAL;
-            nei_presort[NW] = GCHAN_EXTERNAL;
-            }
-            if((this_coord.r - scale.r) <= cam_bord_fixed_w) {
-            for(int nei_dir = SW; nei_dir < NW; nei_dir++)
-            nei_presort[nei_dir] = GCHAN_EXTERNAL;
-            }
-            else if((this_coord.r + scale.r) >= cam_bord_fixed_e) {
-            for(int nei_dir = NE; nei_dir < SE; nei_dir++)
-            nei_presort[nei_dir] = GCHAN_EXTERNAL;
-            }
-             **/
-}
-
-void debug_nei_arrays(int *priority, int *presort, size_t index) {
-  int debug_x = index % RES_X;
-  int debug_y = index / RES_X;
-  printf("(%i, %i) %lu: pre [", debug_x, debug_y, index);
-  for(int nd = 0; nd < 8; nd++) printf("%i, ", presort[nd]);
-  printf("], pri [");
-  for(int nd = 0; nd < 8; nd++) printf("%i, ", priority[nd]);
-  printf("]\n");
-}
-
-enum {
-  SCAN_MODE_NONE,
-  SCAN_MODE_SAFE,
-  SCAN_MODE_INTERIOR
-} scan_mode;
-
-unsigned int mandelbrot_bordertrace(struct camera *cam, Color *pixels) {
-  //these lookup tables r cheap cuz on the stm32f1, 1 memory read is 1 instruction
-  FixedCord scale = { 
-    .r = DOUBLE_TO_FIXED((cam->max_r - cam->min_r) / (double)RES_X), 
-    .i = DOUBLE_TO_FIXED((cam->max_i - cam->min_i) / (double)RES_Y)};
-  FixedCord c = {.r = 0, .i = DOUBLE_TO_FIXED(cam->max_i)};
-  unsigned int total_iters = 0;
-  size_t on_pixel = 0;
-  int border_scanning = 0;
-
-  
-
-  Image img = GenImageColor(RES_X, RES_Y, BLUE);
-  Texture debug_tex = LoadTextureFromImage(img);
-  UnloadImage(img);
-//  bzero(pixels, RES_X * RES_Y * sizeof(Color));
-//  for(size_t c = 0; c < (RES_X * RES_Y); c++) pixels[c] = (Color){0,0,0,255};
-  
-
-  for(int y = 0; y < RES_Y; y++) {
-    border_scanning = 0;
-    for(int x = 0; x < RES_X; x++) {
-
-      c.r = DOUBLE_TO_FIXED((((on_pixel % RES_X) / (double)RES_X) * (cam->max_r - cam->min_r)) + cam->min_r);
-      c.i = DOUBLE_TO_FIXED((((on_pixel / (double)RES_X) / (double)RES_Y) * (cam->min_i - cam->max_i)) + cam->max_i);
-        
-      /**
-      SetTargetFPS(0);
-      BeginDrawing();
-      UpdateTexture(debug_tex, pixels);
-      DrawTextureEx(debug_tex, (Vector2){0,0}, 0, (float)GetRenderWidth()/RES_X, WHITE);
-      EndDrawing();
-      **/
-
-      switch(pixels[on_pixel].g) {
-        case GCHAN_INTERNAL:
-//          printf("starting interior  trace...\n");
-          size_t inner_pix_i = on_pixel;
-          int next_pix;
-          bool pass = false;
-          bool start_detached = false;
-          bool touching_start;
-          bool borders[8];
-          int nei_dir;
-          size_t nei_i;
-
-          bool trusted_nei[8];
-          
-          {
-            //TODO
-            detect_borders(borders, on_pixel);
-            for(nei_dir = 0; nei_dir < 8; nei_dir += 2) if(borders[nei_dir]) break; 
-
-
-            int edge_state = 0;
-            bool first_unrendered = false;
-            for(nei_dir = 0; nei_dir < 8; nei_dir += 2) {
-              nei_i = get_neighbor_index(inner_pix_i, nei_dir);
-              if((nei_dir == 0) && (pixels[nei_i].g == GCHAN_UNRENDERED)) first_unrendered = true;
-              if((edge_state & 1) && (pixels[nei_i].g != GCHAN_UNRENDERED)) edge_state++;
-              else if(!(edge_state & 1) && (pixels[nei_i].g == GCHAN_UNRENDERED)) edge_state++;
-            }
-            //tired, easier to think of success states
-            if(!((edge_state == 1)
-                || ((edge_state == 2) && (!first_unrendered && pixels[nei_i].g != GCHAN_UNRENDERED))
-                || ((edge_state == 3) && (first_unrendered && pixels[nei_i].g == GCHAN_UNRENDERED)))) break;
-          }
-          for(nei_dir = 0; nei_dir < 8; nei_dir++) {
-            nei_i = get_neighbor_index(inner_pix_i, nei_dir);
-            if(pixels[nei_i].g == GCHAN_UNRENDERED) trusted_nei[nei_dir] = true;
-            else trusted_nei[nei_dir] = false;
-          }
-
-          while(true) {
-            detect_borders(borders, inner_pix_i);
-
-            next_pix = -1;
-            touching_start = false;
-            //debug_step(pixels, &debug_tex, inner_pix_i, true);
-            for(nei_dir = 0; nei_dir < 8; nei_dir += 2) {
-              size_t nei_i;
-              size_t localized_dirs[8];
-
-              if(borders[nei_dir]) continue;
-              nei_i = get_neighbor_index(inner_pix_i, nei_dir);
-              if(nei_i == on_pixel) {
-                touching_start = true;
-                if(start_detached) {
-                  next_pix = on_pixel;
-                  break;
-                }
-                continue;
-              }
-              if(pixels[nei_i].g != ((pass) ? GCHAN_INNER_VISITED : GCHAN_INTERNAL)) continue;
-              //if((pixels[nei_i].g == GCHAN_UNRENDERED) || (pixels[nei_i].g == ((pass) ? GCHAN_INNER_CLOSED : GCHAN_INNER_VISITED))) continue;
-
-              for(int i = 0; i < 8; i++) localized_dirs[i] = mod(nei_dir + i, 8);
-              if(!(trusted_nei[localized_dirs[2]] || trusted_nei[localized_dirs[1]] ||
-                   trusted_nei[localized_dirs[6]] || trusted_nei[localized_dirs[7]])) {
-                continue;
-              }
-              /** TODO if we have time, we can only keep track of safe borders when we get in trouble by looking at
-              the past pixel. This has a lot of overhead, but I did it before thinking & I'm out of resources.
-              **/
-              trusted_nei[localized_dirs[4]] = false;
-              trusted_nei[localized_dirs[3]] = trusted_nei[localized_dirs[2]];
-              trusted_nei[localized_dirs[2]] = trusted_nei[localized_dirs[1]];
-              trusted_nei[localized_dirs[5]] = trusted_nei[localized_dirs[6]];
-              trusted_nei[localized_dirs[6]] = trusted_nei[localized_dirs[7]];
-              {
-                bool front_neighbors[5];
-                bool local_borders[8];
-                detect_borders(local_borders, nei_i);
-                for(int nei_edge_dir = -1; nei_edge_dir <= 1; nei_edge_dir++) {
-                  size_t nei_edge_local = mod(nei_dir + nei_edge_dir, 8);
-                  front_neighbors[nei_edge_dir + 1] = 
-                    !(local_borders[nei_edge_local] || (pixels[get_neighbor_index(nei_i, nei_edge_local)].g != GCHAN_UNRENDERED));
-                }
-                front_neighbors[3] = trusted_nei[localized_dirs[6]];
-                front_neighbors[4] = trusted_nei[localized_dirs[2]];
-                trusted_nei[localized_dirs[7]] = (front_neighbors[0] && (front_neighbors[3] || 
-                    (front_neighbors[1] && front_neighbors[2] && front_neighbors[4])));
-                trusted_nei[localized_dirs[1]] = (front_neighbors[2] && (front_neighbors[4] || 
-                    (front_neighbors[0] && front_neighbors[1] && front_neighbors[3])));
-                trusted_nei[localized_dirs[0]] = (front_neighbors[1] && (trusted_nei[localized_dirs[1]] || 
-                      trusted_nei[localized_dirs[7]]));
-              }
-              next_pix = nei_i;
-              break;
-            }
-            if(!start_detached && !touching_start && !(inner_pix_i == on_pixel)) start_detached = true;
-            else if(start_detached && touching_start) {
-              start_detached = false;
-              if(pass) {
-                pixels[inner_pix_i].g = GCHAN_INNER_CLOSED;
-                pixels[touching_start].g = GCHAN_INNER_CLOSED;
-                border_scanning = true;
-                debug_step(pixels, &debug_tex, inner_pix_i, true);
-                break;
-              }
-              else {
-                pass = true;
-                pixels[inner_pix_i].g = GCHAN_INNER_VISITED;
-                inner_pix_i = on_pixel;
-                continue;
-              }
-            }
-            pixels[inner_pix_i].g = ((pass) ? GCHAN_INNER_CLOSED : GCHAN_INNER_VISITED);
-            //TODO remove
-            if(pass) pixels[next_pix].r = 0xff;
-            else { pixels[next_pix].b = 0xaa; }
-
-            if(next_pix < 0) {
-              debug_step(pixels, &debug_tex, inner_pix_i, true);
-              break;
-            }
-            else {
-              inner_pix_i = next_pix;
-            }
-          }
-          break;
-        case GCHAN_UNRENDERED:
-          if(border_scanning) {
-            //pixels[on_pixel] = get_color(ITERS);
-            //printf("interior\n");
-            pixels[on_pixel] = (Color){0xfe,0,0xfe,0xff};
-            break;
-          }
-          //printf("rendering %i, %i (%lu)\n", x, y, on_pixel);
-          int i = iterate(c);
-          total_iters += i;
-          pixels[on_pixel] = get_color(i);
-          if(i == ITERS) {
-            FixedCord this_coord = c;
-            size_t this_index = on_pixel;
-            bool seperated_from_start = false;
-            int nei_priority[8];
-            int last_nei_priority[8];
-            int nei_presort[8];
-
-            size_t backstack[BACKSTACK_SIZE];
-            size_t backstack_i = 0;
-            int backstack_calls = 0;
-
-            int nei_dir;
-
-            debug_step(pixels, &debug_tex, this_index, false);
-            bool debug_mode = false;
-
-
-            
-            bool borders[8];
-            detect_borders(borders, inner_pix_i);
-            for(nei_dir = 0; nei_dir < 8; nei_dir++) {
-              size_t nei_i;
-              if(borders[nei_dir]) break;
-              nei_i = get_neighbor_index(on_pixel, nei_dir);
-              if(pixels[nei_i].g & GCHAN_EXTERNAL) break;
-            }
-
-            if(nei_dir >= 8) {
-              border_scanning = SCAN_MODE_INTERIOR;
-              break;
-            }
-
-            while(true) {
-              detect_borders(borders, this_index);
-              debug_step(pixels, &debug_tex, this_index, false);
-              if(debug_mode) debug_step(pixels, &debug_tex, on_pixel, debug_mode);
-              
-              //step 1: check pixels around us, fill in neighbors.
-              bzero(nei_presort, sizeof(nei_presort));
-
-              this_coord.r = DOUBLE_TO_FIXED((((this_index % RES_X) / (double)RES_X) * (cam->max_r - cam->min_r)) + cam->min_r);
-              this_coord.i = DOUBLE_TO_FIXED((((this_index / (double)RES_X) / (double)RES_Y) * (cam->min_i - cam->max_i)) + cam->max_i);
-              /** now fill in neighbor info based on green channel,
-               *  iterate if no info available.
-               *  if this is to slow we could flatten this; it's predictable
-               *  where there will be info
-               **/  
-              // TODO replace modulos with bitwise ops 
-              bool start_is_nei = false;
-              for(int nei_dir = 0; nei_dir < 8; nei_dir++) {
-                size_t nei_i;
-                uint8_t gchan_info;
-
-                //happens if we're pushed against the screen
-                if(borders[nei_dir]) {
-                  nei_presort[nei_dir] = GCHAN_EXTERNAL;
-                  continue;
-                }
-
-                nei_i = get_neighbor_index(this_index, nei_dir);
-                gchan_info = pixels[nei_i].g;
-                if(nei_i == on_pixel) start_is_nei = true;
-                //note that when we move this over, there will be no alpha channel.
-                //gchan_info will be extracted differently!!!
-                if(gchan_info) nei_presort[nei_dir] = gchan_info;
-                else {
-                  int i = iterate(get_neighbor_coord(this_coord, nei_dir, scale));
-                  pixels[nei_i] = get_color(i);
-                  if(i == ITERS) nei_presort[nei_dir] = GCHAN_INTERNAL;
-                  else {
-                    //exterior
-                    nei_presort[nei_dir] = GCHAN_EXTERNAL;
-                  }
-                  pixels[nei_i].g = nei_presort[nei_dir];
-                }
-              }
-              if(!start_is_nei && !seperated_from_start && (this_index != on_pixel)) seperated_from_start = true;
-              if(start_is_nei && seperated_from_start) {
-                //printf("success!\n");
-                pixels[this_index].g = GCHAN_BLOCKED;
-                break;
-              }
-
-              //go back if we're in the interior and not an edge
-              int edge_cnt = 0;
-              //sort into prioraties
-              for(int nei_dir = 0; nei_dir < 8; nei_dir += 2) {
-                int nei_edge_i;
-                if(nei_presort[nei_dir] != GCHAN_INTERNAL) {
-                  nei_priority[nei_dir] = -1;
-                  continue; 
-                }
-
-                //TODO rename nei_edge_i
-                //printf("%i: \n", nei_dir);
-                for(nei_edge_i = -2; nei_edge_i <= 2; nei_edge_i++) {
-                  int nei_edge_mod = mod((nei_dir + nei_edge_i), 8);
-                  if((nei_presort[nei_edge_mod] == GCHAN_EXTERNAL) || borders[nei_edge_mod]) break;
-                }
-                if(nei_edge_i > 2) {
-                  //no edge found
-                  nei_priority[nei_dir] = -2; //TODO test; remove interior check if nessesary
-                  continue;
-                }
-
-                //narrow bridge scenario
-                if(nei_presort[mod((nei_dir + 1), 8)] & nei_presort[mod((nei_dir - 1), 8)] & GCHAN_EXTERNAL) {
-                  nei_i = get_neighbor_index(this_index, nei_dir);
-                  //pixels[nei_i] = (Color) {0xff, pixels[nei_i].g, 0x00, 0xff};
-                  nei_priority[nei_dir] = -1;
-                  continue;
-                }
-
-                edge_cnt++;
-                nei_priority[nei_dir] = 0;
-              }
-              if(edge_cnt >= 2) { 
-                backstack[backstack_i++ % BACKSTACK_SIZE] = this_index;
-                //printf("backstack increased\n");
-              }
-
-              //now go to canidate with lowest prioraty
-              pixels[this_index].g = GCHAN_BLOCKED;
-              for(int priority = 0; priority <= 5; priority++) { //TODO we might not need the priority system anymore
-                for(int nei_dir = 0; nei_dir < 8; nei_dir += 2) {
-                  if(nei_priority[nei_dir] != priority) continue;
-                  backstack_calls = 0;
-                  this_index = get_neighbor_index(this_index, nei_dir);
-                  this_coord = get_neighbor_coord(this_coord, nei_dir, scale);
-                  //printf("--> (%zu, %zu)\n", this_index % RES_X, this_index / RES_X);
-                  goto NEXT_PIXEL;
-                }
-              }
-              if((backstack_calls++ > BACKSTACK_SIZE) || (backstack_i < 1)) { //please don't cause issues...
-                //printf("cycled through backstack, questionable success...\n");
-                break;
-              }
-              this_index = backstack[--backstack_i % BACKSTACK_SIZE];
-              NEXT_PIXEL:
-              memcpy(last_nei_priority, nei_priority, sizeof(nei_priority));
-            }
-            debug_step(pixels, &debug_tex, this_index, true);
-          }
-          else pixels[on_pixel].g = GCHAN_EXTERNAL;
-          break;
-        case GCHAN_INNER_CLOSED:
-          //printf("bruh\n");
-          if(((x + 2) < RES_X) && (pixels[on_pixel + 1].g == GCHAN_UNRENDERED)) border_scanning = SCAN_MODE_NONE;
-          break;
-        default: 
-          border_scanning = SCAN_MODE_NONE;
-      }
-      on_pixel++;
-      c.r += scale.r;
-      //printf("%u\n", on_pixel);
-    }
-    border_scanning = false;
-  }
-  debug_step(pixels, &debug_tex, 0, true);
-  for(size_t i = 0; i < (RES_X * RES_Y); i++) pixels[i].g = 0;
-  return total_iters;
-}
-
-unsigned int mandelbrot_unoptimized(struct camera *cam, Color *pixels) {
-  FixedCord scale = { 
-    .r = DOUBLE_TO_FIXED((cam->max_r - cam->min_r) / (double)RES_X), 
-    .i = DOUBLE_TO_FIXED((cam->max_i - cam->min_i) / (double)RES_Y)};
-  FixedCord c = { .r = DOUBLE_TO_FIXED(cam->min_r), .i = DOUBLE_TO_FIXED(cam->max_i) };
-  unsigned int total_iters = 0;
-  size_t on_pixel = 0;
-  for(int y = 0; y < RES_Y; y++) {
-    c.r = DOUBLE_TO_FIXED(cam->min_r);
-    for(int x = 0; x < RES_X; x++) {
-      int i = iterate(c);
-      c.r = DOUBLE_TO_FIXED((((on_pixel % RES_X) / (double)RES_X) * (cam->max_r - cam->min_r)) + cam->min_r);
-      c.i = DOUBLE_TO_FIXED((((on_pixel / (double)RES_X) / (double)RES_Y) * (cam->min_i - cam->max_i)) + cam->max_i);
-      total_iters += i;
-      pixels[((y * RES_X) + x)] = get_color(i);
-      on_pixel++;
-//      c.r += scale.r;      
-    }
-    c.i -= scale.i;
-  }
-  return total_iters;
-}
-
-int main() {
-  //test();
-  //return 0;
-  Color *pixels_unoptimized = malloc(RES_X * RES_Y * sizeof(Color));
-  Color *pixels_optimized = malloc(RES_X * RES_Y * sizeof(Color));
-  bool optimized = true;
-  //(1.514379082621093886019, 0.000033222739567139065) - (1.514381385800912305228, 0.000034374329476534746)
-
-  struct camera cam_default = {
-    .min_r = -1,
-    .max_r = 1
-  };
-  cam_default.min_i = ((double)RES_Y / RES_X) * cam_default.min_r;
-  cam_default.max_i = ((double)RES_Y / RES_X) * cam_default.max_r;
-    
-
-  //done
-  //.min_r = 0.340060821337554164412, .min_i = -0.076399869494282027227, .max_r = 0.340671385211165078655, .max_i = -0.076094587557451340287 
-
-  //done
-  //.min_r = 0.348347456407892719366, .min_i = -0.092130353675640097588, .max_r = 0.349033773135021985201, .max_i = -0.091787195312047098472
-
-
-  //has internal noise 
-  //.min_r = 0.348416088080605645949, .min_i = -0.092130353675640097588, .max_r = 0.349102404807734911785, .max_i = -0.091787195312047098472
-
-  //needs diagnol transfer
-  //.min_r = 0.352126044212195454808, .min_i = -0.101818891004586714599, .max_r = 0.354169737175103083171, .max_i = -0.100797044523048578979
-
-  //works
-  //.min_r = 1.514379082621093886019, .min_i = 0.000033222739567139065, .max_r = 1.514381385800912305228, .max_i = 0.000034374329476534746
-
-//  unusual issue; complete rendered border
-  //  .min_r = 0.426539347230382670517, .min_i = 0.218210183100018217939, .max_r = 0.427445609943903681582, .max_i = 0.218663314456816582076 
-
-
-  
-  struct camera cam = {
-    //.min_r = 0.348416088080605645949, .min_i = -0.092130353675640097588, .max_r = 0.349102404807734911785, .max_i = -0.091787195312047098472
-    .min_r = 0.348347456407892719366, .min_i = -0.092130353675640097588, .max_r = 0.349033773135021985201, .max_i = -0.091787195312047098472
-  };
-  InitWindow(WINDOW_SIZE_X, WINDOW_SIZE_Y, "mandelbrot fixed point test");
-  SetTraceLogLevel(LOG_ERROR);
-
-  Image img = GenImageColor(RES_X, RES_Y, BLUE);
-  Texture tex = LoadTextureFromImage(img);
-  UnloadImage(img);
-
-  SetTargetFPS(60);
-
-  while(!WindowShouldClose()) {
-    switch(GetKeyPressed()) {
-      case KEY_UP:
-        shift_cam(&cam, 0, STEP_SIZE);
-        break;
-      case KEY_DOWN:
-        shift_cam(&cam, 0, -STEP_SIZE);
-        break;
-      case KEY_RIGHT:
-        shift_cam(&cam, STEP_SIZE, 0);
-        break;
-      case KEY_LEFT:
-        shift_cam(&cam, -STEP_SIZE, 0);
-        break;
-      case KEY_W:
-        zoom_cam(&cam, ZOOM_SIZE);
-        break;
-      case KEY_S:
-        zoom_cam(&cam, -ZOOM_SIZE);
-        break;
-      case KEY_SPACE:
-        optimized = !optimized;
-        break;
-      default:
-        BeginDrawing();
-        EndDrawing();
-        continue;
-        break;
-    }
-    printf(".min_r = %.21f, .min_i = %.21f, .max_r = %.21f, .max_i = %.21f\n", cam.min_r, cam.min_i, cam.max_r, cam.max_i);
-
-
-    clock_t begin, end;
-    double time_unoptimized;
-    double time_optimized;
-
-    for(int i = 0; i < (RES_X * RES_Y); i++) { pixels_unoptimized[i] = (Color){0, 0, 0, 0xff}; }
-    for(int i = 0; i < (RES_X * RES_Y); i++) { pixels_optimized[i] = (Color){0, 0, 0, 0xff}; }
-
-    begin = clock();
-    unsigned int unoptimized_iters = mandelbrot_unoptimized(&cam, pixels_unoptimized);
-    end = clock();
-
-    time_unoptimized = (double)(end - begin) / CLOCKS_PER_SEC;
-    printf("Unoptimized: %u iterations, %f seconds\n", unoptimized_iters, time_unoptimized);
-
-    begin = clock();
-    unsigned int optimized_iters = mandelbrot_bordertrace(&cam, pixels_optimized);
-    end = clock();
-
-    time_optimized = (double)(end - begin) / CLOCKS_PER_SEC;
-    printf("Border tracing: %u iterations, %f seconds\n", optimized_iters, time_optimized); 
-
-    printf("border tracing does %f%% of nieve approach\n", ((float)optimized_iters / unoptimized_iters) * 100);
-
-    BeginDrawing();
-    printf("%s\n", optimized ? "optimized mode" : "unoptimized mode");
-    UpdateTexture(tex, optimized ? pixels_optimized : pixels_unoptimized);
-    DrawTextureEx(tex, (Vector2){0,0}, 0, (float)GetRenderWidth()/RES_X, WHITE);
-    EndDrawing();
-
-  }
-
-  return 0;
-}

recon/mandelbrot_tests/c/backup.c

@@ -1,204 +0,0 @@
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <raylib.h>
-#include <raymath.h>
-#include <limits.h>
-
-#define WINDOW_SIZE_X     1600
-#define WINDOW_SIZE_Y     800
-#define RES_X             160
-#define RES_Y             80
-#define DEFAULT_CENTER_X  0
-#define DEFAULT_CENTER_Y  0
-#define MOUSE_BUTTON      0
-#define STEP_SIZE         .1
-#define ZOOM_SIZE         .1
-
-
-#define DECIMAL_LOC           28
-#define DOUBLE_SCALER         (1 << DECIMAL_LOC)
-#define DOUBLE_TO_FIXED(val)  (int32_t)((val) * DOUBLE_SCALER)
-#define FIXED_MULTIPLY(x,y)   ((((uint64_t)(x))*(y)) >> DECIMAL_LOC)
-#define FIXED_TO_DOUBLE(val)  ((val) / (double)DOUBLE_SCALER)
-
-#define INFTY     2
-#define INFTY_SQR INFTY * INFTY
-#define ITERS     255
-#define INFTY_SQR_FIXED DOUBLE_TO_FIXED(INFTY_SQR)
-
-//#define SHIP
-#undef SHIP
-
-#ifdef SHIP
-Color get_color(int i) {
-  if(i == ITERS) return (Color){0, 0, 0, 255};
-  if(i == 0) return (Color){0, 0, 0, 255};
-    return (Color) {
-        2*(i - 128)+255,
-          0,
-          0,
-        255
-    };
-}
-#else
-Color get_color(int i) {
-//  if((i == ITERS) || (i == 0)) return (Color){0, 0, 0, 255};
-  if(i == ITERS) return (Color){0,255,0,255};
-  if(i == 0) return (Color){0, 0, 0, 255};
-  if(i < 128) {
-    return (Color) {
-        (8*(i - 128)+255) & 0xff,
-        0,
-        (16*(i - 64)+255) & 0xff,
-        255
-    };
-  }
-    return (Color) {
-      0,
-        0,
-      ((unsigned int)-2*(i - 128)+255) & 0xff,
-        255
-    };
-}
-#endif
-
-
-struct camera {
-  double min_r, min_i, max_r, max_i;
-};
-
-struct vec2_double {
-  double x, y;
-};
-
-struct vec2_float {
-  int32_t x, y;
-};
-
-static inline int iterate(int32_t r, int32_t i) {
-  int32_t z_i = 0;
-  int32_t z_r = 0;
-  int32_t z_r_2, z_i_2, zn_r, zn_i;
-  for(int it = 0; it < ITERS; it++) {
-    z_r_2 = FIXED_MULTIPLY(z_r, z_r);
-    z_i_2 = FIXED_MULTIPLY(z_i, z_i);
-
-    zn_r = z_r_2 - z_i_2 + r;
-
-#ifdef SHIP
-    zn_i = abs(FIXED_MULTIPLY((DOUBLE_TO_FIXED(2)), (FIXED_MULTIPLY(z_r, z_i)))) + i;
-#else
-    zn_i = (FIXED_MULTIPLY((DOUBLE_TO_FIXED(2)), (FIXED_MULTIPLY(z_r, z_i)))) + i;
-#endif
-
-    z_i = zn_i;
-    z_r = zn_r;
-
-    if(z_i_2 + z_r_2 > INFTY_SQR_FIXED) return it;
-  }
-  return ITERS;
-}
-
-//blllluuuuurg, matracies and vectors in raylib are floats and we need doubles
-void shift_cam(struct camera *cam, double step_r, double step_i) {
-  double i_offset = (cam->max_i - cam->min_i) * step_i;
-  double r_offset = (cam->max_r - cam->min_r) * step_r;
-  cam->min_i += i_offset;
-  cam->max_i += i_offset;
-  cam->min_r += r_offset;
-  cam->max_r += r_offset;
-}
-
-void zoom_cam(struct camera *cam, double zoom) {
-  double i_scale = (cam->max_i - cam->min_i) * zoom;
-  double r_scale = (cam->max_r - cam->min_r) * zoom;
-  cam->min_i += i_scale;
-  cam->max_i -= i_scale;
-  cam->min_r += r_scale;
-  cam->max_r -= r_scale;
-}
-
-enum DIRECTIONS {
-  N, NE, E, SE, S, SW, W, NW
-};
-
-int main() {
-  Color *pixels = malloc(RES_X * RES_Y * sizeof(Color));
-  struct camera cam = {
-    .min_r = -1,
-    .max_r = 1,
-  //  .min_i = -1,
-  //  .max_i = 1
-  };
-  cam.min_i = ((double)RES_Y / RES_X) * cam.min_r;
-  cam.max_i = ((double)RES_Y / RES_X) * cam.max_r;
-  InitWindow(WINDOW_SIZE_X, WINDOW_SIZE_Y, "mandelbrot fixed point test");
-
-  Image img = GenImageColor(RES_X, RES_Y, BLUE);
-  Texture tex = LoadTextureFromImage(img);
-  UnloadImage(img);
-
-  SetTargetFPS(10);
-
-
-  while(!WindowShouldClose()) {
-    switch(GetKeyPressed()) {
-      case KEY_UP:
-        shift_cam(&cam, 0, STEP_SIZE);
-        break;
-      case KEY_DOWN:
-        shift_cam(&cam, 0, -STEP_SIZE);
-        break;
-      case KEY_RIGHT:
-        shift_cam(&cam, STEP_SIZE, 0);
-        break;
-      case KEY_LEFT:
-        shift_cam(&cam, -STEP_SIZE, 0);
-        break;
-      case KEY_W:
-        zoom_cam(&cam, ZOOM_SIZE);
-        break;
-      case KEY_S:
-        zoom_cam(&cam, -ZOOM_SIZE);
-        break;
-      default:
-        BeginDrawing();
-        EndDrawing();
-        continue;
-        break;
-    }
-    printf("(%.21f, %.21f) - (%.21f, %.21f)\n", cam.min_r, cam.min_i, cam.max_r, cam.max_i);
-    {
-      int32_t scale_i = DOUBLE_TO_FIXED((cam.max_i - cam.min_i) / (double)RES_Y);
-      int32_t scale_r = DOUBLE_TO_FIXED((cam.max_r - cam.min_r) / (double)RES_X);
-      int32_t c_i = DOUBLE_TO_FIXED(cam.max_i);
-      int32_t c_r;
-      for(int y = 0; y < RES_Y; y++) {
-        c_r = DOUBLE_TO_FIXED(cam.min_r);
-        for(int x = 0; x < RES_X; x++) {
-          int i = iterate(c_r, c_i);
-          if(i >= ITERS) {
-            int start_x = x;
-            int start_y = y;
-            do {
-              for(int canidate_d = 0; canidate_d < NW; canidate_d++) {
-
-              }
-            } while((x != start_x) && (y != start_y));
-          }
-          pixels[((y * RES_X) + x)] = get_color(iterate(c_r, c_i));
-          c_r += scale_r;
-        }
-        c_i -= scale_i;
-      }
-    }
-
-    BeginDrawing();
-    UpdateTexture(tex, pixels);
-    DrawTextureEx(tex, (Vector2){0,0}, 0, (float)GetRenderWidth()/RES_X, WHITE);
-    EndDrawing();
-  }
-
-  return 0;
-}

recon/mandelbrot_tests/c/backup_2.c

@@ -1,427 +0,0 @@
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <raylib.h>
-#include <raymath.h>
-#include <limits.h>
-#include <complex.h>
-#include <string.h>
-
-#define WINDOW_SIZE_X     1600
-#define WINDOW_SIZE_Y     800
-#define RES_X             1600
-#define RES_Y             800
-#define DEFAULT_CENTER_X  0
-#define DEFAULT_CENTER_Y  0
-#define MOUSE_BUTTON      0
-#define STEP_SIZE         .1
-#define ZOOM_SIZE         .1
-
-
-#define DECIMAL_LOC           28
-#define DOUBLE_SCALER         (1 << DECIMAL_LOC)
-#define DOUBLE_TO_FIXED(val)  (int32_t)((val) * DOUBLE_SCALER)
-#define FIXED_MULTIPLY(x,y)   ((((uint64_t)(x))*(y)) >> DECIMAL_LOC)
-#define FIXED_TO_DOUBLE(val)  ((val) / (double)DOUBLE_SCALER)
-
-#define INFTY     2
-#define INFTY_SQR INFTY * INFTY
-#define ITERS     255
-#define INFTY_SQR_FIXED DOUBLE_TO_FIXED(INFTY_SQR)
-
-//#define SHIP
-//#undef SHIP
-
-#ifdef SHIP
-Color get_color(int i) {
-  if(i == ITERS) return (Color){0, 0, 0, 255};
-  if(i == 0) return (Color){0, 0, 0, 255};
-    return (Color) {
-        2*(i - 128)+255,
-          0,
-          0,
-        255
-    };
-}
-#else
-Color get_color(int i) {
-//  if((i == ITERS) || (i == 0)) return (Color){0, 0, 0, 255};
-  if(i == ITERS) return (Color){0,0,0,255};
-  if(i == 0) return (Color){0, 0, 0, 255};
-  if(i < 128) {
-    return (Color) {
-        (8*(i - 128)+255) & 0xff,
-        0,
-        (16*(i - 64)+255) & 0xff,
-        255
-    };
-  }
-    return (Color) {
-      0,
-        0,
-      ((unsigned int)-2*(i - 128)+255) & 0xff,
-        255
-    };
-}
-#endif
-
-
-struct camera {
-  double min_r, min_i, max_r, max_i;
-};
-
-typedef struct {
-  int32_t r; int32_t i;
-} FixedCord;
-
-static inline int iterate(FixedCord c) {
-  int32_t z_i = 0;
-  int32_t z_r = 0;
-  int32_t z_r_2, z_i_2, zn_r, zn_i;
-  for(int it = 0; it < ITERS; it++) {
-    z_r_2 = FIXED_MULTIPLY(z_r, z_r);
-    z_i_2 = FIXED_MULTIPLY(z_i, z_i);
-
-    zn_r = z_r_2 - z_i_2 + c.r;
-
-#ifdef SHIP
-    zn_i = abs(FIXED_MULTIPLY((DOUBLE_TO_FIXED(2)), (FIXED_MULTIPLY(z_r, z_i)))) + c.i;
-#else
-    zn_i = (FIXED_MULTIPLY((DOUBLE_TO_FIXED(2)), (FIXED_MULTIPLY(z_r, z_i)))) + c.i;
-#endif
-
-    z_i = zn_i;
-    z_r = zn_r;
-
-    if(z_i_2 + z_r_2 > INFTY_SQR_FIXED) return it;
-  }
-  return ITERS;
-}
-
-//blllluuuuurg, matracies and vectors in raylib are floats and we need doubles
-void shift_cam(struct camera *cam, double step_r, double step_i) {
-  double i_offset = (cam->max_i - cam->min_i) * step_i;
-  double r_offset = (cam->max_r - cam->min_r) * step_r;
-  cam->min_i += i_offset;
-  cam->max_i += i_offset;
-  cam->min_r += r_offset;
-  cam->max_r += r_offset;
-}
-
-void zoom_cam(struct camera *cam, double zoom) {
-  double i_scale = (cam->max_i - cam->min_i) * zoom;
-  double r_scale = (cam->max_r - cam->min_r) * zoom;
-  cam->min_i += i_scale;
-  cam->max_i -= i_scale;
-  cam->min_r += r_scale;
-  cam->max_r -= r_scale;
-}
-
-enum DIRECTIONS {
-  N, NE, E, SE, S, SW, W, NW
-};
-
-
-//we can inline these if needed
-
-inline bool bitarray_check(uint8_t *array, size_t i) {
-  return array[i/8] & (1 << (i%8));
-}
-
-inline void bitarray_set(uint8_t *array, size_t i) {
-  array[i/8] |= (1 << (i%8));
-}
-
-inline FixedCord get_neighbor_coord(FixedCord from_coord, int direction, FixedCord step) {
-  if((direction == NW) || (direction < E)) from_coord.i += step.i;
-  if((direction > N) && (direction < S)) from_coord.r += step.r;
-  if((direction > E) && (direction < W)) from_coord.i -= step.i;
-  if(direction > S) from_coord.r -= step.r;
-  return from_coord;
-}
-FixedCord get_neighbor_coord(FixedCord from_coord, int direction, FixedCord step);
-
-
-size_t get_neighbor_index(size_t from_pixel, int direction) {
-  const size_t neighbor_index_accl[8] = 
-    {-RES_X, -RES_X + 1, 1, RES_X + 1, RES_X, RES_X - 1, -1, -RES_X - 1};
-  from_pixel += neighbor_index_accl[direction];
-  //canidate for optimization; lots of branches. maybe inline
-  return from_pixel;
-}
-
-
-
-bool bitarray_check(uint8_t *array, size_t i);
-void bitarray_set(uint8_t *array, size_t i);
-#define BITARRAY_SET(array, i) ((array)[(i)/8] |= (1 << ((i) % 8)))
-#define BITARRAY_CLEAR(array, i) ((array)[(i)/8] &= ~(1 << ((i) % 8)))
-#define BITARRAY_CHECK(array, i) ((array)[(i)/8] & (1 << ((i) % 8)))
-          
-//a lot of these are just so I can keep track of my cases while I program this, simplification will happen later
-enum CANIDATE_STATUS {
-  UNSOLVED = 0,
-  M_ELEMENT,
-  M_EXTERIOR,
-  M_INTERIOR,
-  M_VISITED, //part of the curve we've been drawing
-  M_SKETCHY_SUSPENSION_ROPE_BRIDGE_TYPE_SHIT
-};
-
-unsigned int mandelbrot_bordertrace(struct camera *cam, Color *pixels) {
-  //these lookup tables r cheap cuz on the stm32f1, 1 memory read is 1 instruction
-  FixedCord scale = { 
-    .r = DOUBLE_TO_FIXED((cam->max_r - cam->min_r) / (double)RES_X), 
-    .i = DOUBLE_TO_FIXED((cam->max_i - cam->min_i) / (double)RES_Y)};
-  FixedCord c = {.r = 0, .i = DOUBLE_TO_FIXED(cam->max_i)};
-  unsigned int total_iters = 0;
-  size_t on_pixel = 0;
-  uint8_t border[(RES_X*RES_Y)/8] = {0};
-
-  //having these r kinda gross, will restructure later
-  int32_t cam_bord_fixed_n = DOUBLE_TO_FIXED(cam->min_i);
-  int32_t cam_bord_fixed_s = DOUBLE_TO_FIXED(cam->max_i);
-  int32_t cam_bord_fixed_e = DOUBLE_TO_FIXED(cam->max_r);
-  int32_t cam_bord_fixed_w = DOUBLE_TO_FIXED(cam->min_r);
-  
-
-
-  /**
-  //for keeping track of border only. will organize later
-  uint8_t set[(160*80)/8] = {0};
-  uint8_t unset[(160*80)/8] = {0};
-  **/
-  for(int y = 0; y < RES_Y; y++) {
-    c.r = DOUBLE_TO_FIXED(cam->min_r);
-    for(int x = 0; x < RES_X; x++) {
-      uint8_t border_bit = BITARRAY_CHECK(border, on_pixel);
-      int i = iterate(c);
-      total_iters += i;
-      pixels[on_pixel] = get_color(i);
-
-      const Color debug_colors[] = 
-      { (Color) {0xff, 0x00, 0x00, 0xff},
-        (Color) {0xff, 0x00, 0xff, 0xff},
-        (Color) {0x00, 0xff, 0x00, 0xff},
-        (Color) {0x00, 0x00, 0xff, 0xff},
-        (Color) {0x6a, 0x00, 0xff, 0xff}
-      };
-
-      static int on_dbg_color = 0;
-
-      //this is where it all begins
-      uint8_t rendered[(RES_X*RES_Y)/8] = {0};
-      uint8_t deadend[(RES_X*RES_Y)/8] = {0};
-      if(i == ITERS) {
-        BORDER_START:
-        __attribute__((unused)); 
-
-        //just makes getting index of neigbor easier; doesn't cost extra cycles
-        FixedCord starting_bord_cord = c;
-        FixedCord current_bord_cord = c;
-        FixedCord last_bord_cord;
-        int previous_neighbors[8] = {UNSOLVED};
-        int current_neighbors[8] = {UNSOLVED};
-        current_neighbors[W] = UNSOLVED;
-        size_t current_bord_i = on_pixel;
-        uint8_t visited_border[(RES_X*RES_Y)/8] = {0};
-        int source_dir = 0;
-        size_t prev_bord_i = 0;
-        while(true) {
-          int filled_neighbors = 0;
-
-          //find if we're pushed against screen border. 
-          //find a less gross way to do this
-          if((current_bord_cord.i - scale.i) < cam_bord_fixed_n) {
-            for(int nei_dir = SE; nei_dir <= SW; nei_dir++)
-              current_neighbors[nei_dir] = M_EXTERIOR;
-          }
-          if((current_bord_cord.i + scale.i) > cam_bord_fixed_s) {
-              current_neighbors[NE] = M_EXTERIOR;
-              current_neighbors[N] = M_EXTERIOR;
-              current_neighbors[NW] = M_EXTERIOR;
-          }
-          if((current_bord_cord.r - scale.r) < cam_bord_fixed_w) {
-            for(int nei_dir = SW; nei_dir < NW; nei_dir++)
-              current_neighbors[nei_dir] = M_EXTERIOR;
-          }
-          if((current_bord_cord.r + scale.r) > cam_bord_fixed_e) {
-            for(int nei_dir = NE; nei_dir < SE; nei_dir++)
-              current_neighbors[nei_dir] = M_EXTERIOR;
-          }
-
-          //get info on neighbors, fill in missing current_neighbors info
-          for(int nei_dir = 0; nei_dir < 8; nei_dir++) {
-            size_t nei_i = get_neighbor_index(current_bord_i, nei_dir);
-            if(current_neighbors[nei_dir] == M_EXTERIOR) continue;
-            if(current_neighbors[nei_dir] != UNSOLVED) {
-              filled_neighbors++;
-              continue;
-            }
-            if(current_neighbors[nei_dir] == M_VISITED) continue;
-            if(BITARRAY_CHECK(visited_border, nei_i)) {
-              current_neighbors[nei_dir] = M_VISITED;
-              filled_neighbors++;
-              continue;
-            }
-            int i = iterate(get_neighbor_coord(current_bord_cord, nei_dir, scale));
-            total_iters += i;
-            if(i == ITERS) {
-              current_neighbors[nei_dir] = M_ELEMENT;
-              filled_neighbors++;
-              continue;
-            }
-            current_neighbors[nei_dir] = M_EXTERIOR;
-          }
-
-          if(filled_neighbors >= 8) {
-            memcpy(current_neighbors, previous_neighbors, sizeof(current_neighbors));
-            current_bord_cord = last_bord_cord;
-            current_bord_i = prev_bord_i;
-            current_neighbors[source_dir] = M_INTERIOR;
-          }
-
-          BeginDrawing();
-          DrawPixel(current_bord_i % RES_X, current_bord_i / RES_X, debug_colors[on_dbg_color]);
-          EndDrawing();
-
-          int nei_dir;
-          memcpy(previous_neighbors, current_neighbors, sizeof(current_neighbors));
-          memset(current_neighbors, 0, sizeof(current_neighbors));
-          for(nei_dir = 0; nei_dir < 8; nei_dir++) {
-            //found a valid neighbor to switch to
-            if(previous_neighbors[nei_dir] == M_ELEMENT) { 
-              BITARRAY_SET(visited_border, current_bord_i);
-              current_neighbors[(nei_dir + 4) % 8] = M_VISITED;
-              if(nei_dir % 2) { //diagnals
-                current_neighbors[(nei_dir + 3) % 8] = previous_neighbors[(nei_dir + 1) % 8]; 
-                current_neighbors[(nei_dir + 5) % 8] = previous_neighbors[(nei_dir - 1) % 8]; 
-              }
-              else {
-                current_neighbors[(nei_dir + 2) % 8] = previous_neighbors[(nei_dir + 1) % 8];
-                current_neighbors[(nei_dir + 3) % 8] = previous_neighbors[(nei_dir + 2) % 8];
-                current_neighbors[(nei_dir + 5) % 8] = previous_neighbors[(nei_dir - 2) % 8];
-                current_neighbors[(nei_dir + 6) % 8] = previous_neighbors[(nei_dir - 1) % 8];
-              }
-
-              last_bord_cord = current_bord_cord;
-              current_bord_cord = get_neighbor_coord(current_bord_cord, nei_dir, scale);
-
-              prev_bord_i = current_bord_i;
-              current_bord_i = get_neighbor_index(current_bord_i, nei_dir);
-
-              
-              source_dir = nei_dir;
-              break;
-            }
-          }
-          if(!memcmp(&current_bord_cord, &starting_bord_cord, sizeof(current_bord_cord))) {
-            for(size_t bord_i = 0; bord_i < sizeof(border); bord_i++){
-              border[bord_i] |= visited_border[bord_i];
-              break;
-            }
-          }
-          printf("%zu: ", prev_bord_i);
-          printf("(%zu, %zu) -> (%zu, %zu) | {", prev_bord_i % RES_X, prev_bord_i / RES_X, current_bord_i % RES_X, current_bord_i / RES_X);
-          for(int i = 0; i < 8; i++) printf("%i, ", previous_neighbors[i]);
-          printf("} -> {");
-          for(int i = 0; i < 8; i++) printf("%i, ", current_neighbors[i]);
-          printf("}\n");
-
-          if(nei_dir > 7) break;
-          //printf("loop\n");
-        } 
-        on_dbg_color = (on_dbg_color + 1) % (sizeof(debug_colors) / sizeof(*debug_colors));
-      }
-      on_pixel++;
-      c.r += scale.r;
-    }
-    c.i -= scale.i;
-  }
-  return total_iters;
-}
-
-unsigned int mandelbrot_unoptimized(struct camera *cam, Color *pixels) {
-  FixedCord scale = { .r = DOUBLE_TO_FIXED((cam->max_r - cam->min_r) / (double)RES_X), .i = DOUBLE_TO_FIXED((cam->max_i - cam->min_i) / (double)RES_Y) };
-  FixedCord c = { .r = 0, .i = DOUBLE_TO_FIXED(cam->max_i) };
-  unsigned int total_iters = 0;
-  for(int y = 0; y < RES_Y; y++) {
-    c.r = DOUBLE_TO_FIXED(cam->min_r);
-    for(int x = 0; x < RES_X; x++) {
-      int i = iterate(c);
-      total_iters += i;
-      pixels[((y * RES_X) + x)] = get_color(i);
-      c.r += scale.r;
-    }
-    c.i -= scale.i;
-  }
-  return total_iters;
-}
-
-void test() {
-  uint8_t bitarray[(160*80)/8] = {0};
-  int test_i = 9;
-  BITARRAY_SET(bitarray, test_i);
-  printf("%s\n", BITARRAY_CHECK(bitarray, 9) ? "true" : "false");
-}
-
-int main() {
-  //test();
-  //return 0;
-  Color *pixels = malloc(RES_X * RES_Y * sizeof(Color));
-  struct camera cam = {
-    .min_r = -1,
-    .max_r = 1,
-  //  .min_i = -1,
-  //  .max_i = 1
-  };
-  cam.min_i = ((double)RES_Y / RES_X) * cam.min_r;
-  cam.max_i = ((double)RES_Y / RES_X) * cam.max_r;
-  InitWindow(WINDOW_SIZE_X, WINDOW_SIZE_Y, "mandelbrot fixed point test");
-
-  Image img = GenImageColor(RES_X, RES_Y, BLUE);
-  Texture tex = LoadTextureFromImage(img);
-  UnloadImage(img);
-
-  SetTargetFPS(0);
-
-
-  while(!WindowShouldClose()) {
-    switch(GetKeyPressed()) {
-      case KEY_UP:
-        shift_cam(&cam, 0, STEP_SIZE);
-        break;
-      case KEY_DOWN:
-        shift_cam(&cam, 0, -STEP_SIZE);
-        break;
-      case KEY_RIGHT:
-        shift_cam(&cam, STEP_SIZE, 0);
-        break;
-      case KEY_LEFT:
-        shift_cam(&cam, -STEP_SIZE, 0);
-        break;
-      case KEY_W:
-        zoom_cam(&cam, ZOOM_SIZE);
-        break;
-      case KEY_S:
-        zoom_cam(&cam, -ZOOM_SIZE);
-        break;
-      default:
-        BeginDrawing();
-        EndDrawing();
-        continue;
-        break;
-    }
-    printf("(%.21f, %.21f) - (%.21f, %.21f)\n", cam.min_r, cam.min_i, cam.max_r, cam.max_i);
-
-    printf("Unoptimized: %u iterations\n", mandelbrot_unoptimized(&cam, pixels));
-    printf("Border tracing: %u iterations\n", mandelbrot_bordertrace(&cam, pixels));
-
-    BeginDrawing();
-    UpdateTexture(tex, pixels);
-    DrawTextureEx(tex, (Vector2){0,0}, 0, (float)GetRenderWidth()/RES_X, WHITE);
-    EndDrawing();
-  }
-
-  return 0;
-}

recon/mandelbrot_tests/c/backup_lasttime

@@ -1,585 +0,0 @@
-/** READ BEFORE JUDING!
- * Yes, I know this code is a mess. Debug code is added
- * happhazardly, two cameras are used, etc.
- * That's because it's a temporary program
- * to create optimizations and debug rendering issues without hardware.
- * None of this is going to be included in the project, and the code is thus
- * not extensible or organized; it really doesn't save any effort to do so.
- *
- * This code is meant for my eyes only. You've been warned!
- *
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <raylib.h>
-#include <raymath.h>
-#include <limits.h>
-#include <complex.h>
-#include <string.h>
-#include <unistd.h>
-
-#define WINDOW_SIZE_X     1600
-#define WINDOW_SIZE_Y     800
-#define RES_X             1600
-#define RES_Y             800
-#define DEFAULT_CENTER_X  0
-#define DEFAULT_CENTER_Y  0
-#define MOUSE_BUTTON      0
-#define STEP_SIZE         .1
-#define ZOOM_SIZE         .1
-
-
-#define DECIMAL_LOC           28
-#define DOUBLE_SCALER         (1 << DECIMAL_LOC)
-#define DOUBLE_TO_FIXED(val)  (int32_t)((val) * DOUBLE_SCALER)
-#define FIXED_MULTIPLY(x,y)   ((((uint64_t)(x))*(y)) >> DECIMAL_LOC)
-#define FIXED_TO_DOUBLE(val)  ((val) / (double)DOUBLE_SCALER)
-
-#define INFTY     2
-#define INFTY_SQR INFTY * INFTY
-#define ITERS     255
-#define INFTY_SQR_FIXED DOUBLE_TO_FIXED(INFTY_SQR)
-
-//#define SHIP
-//#undef SHIP
-  
-int debug_x, debug_y;
-
-
-#ifdef SHIP
-Color get_color(int i) {
-  if(i == ITERS) return (Color){0, 0, 0, 255};
-  if(i == 0) return (Color){0, 0, 0, 255};
-    return (Color) {
-        2*(i - 128)+255,
-          0,
-          0,
-        255
-    };
-}
-#else
-Color get_color(int i) {
-//  if((i == ITERS) || (i == 0)) return (Color){0, 0, 0, 255};
-  if(i == ITERS) return (Color){0,0,0,255};
-  if(i == 0) return (Color){0,0,1,255};
-  if(i < 128) {
-    return (Color) {
-        (8*(i - 128)+255) & 0xff,
-        0,
-        (16*(i - 64)+255) & 0xff,
-        255
-    };
-  }
-    return (Color) {
-      0,
-        0,
-      ((unsigned int)-2*(i - 128)+255) & 0xff,
-        255
-    };
-}
-#endif
-
-
-//TODO remove
-struct debug_info {
-  int32_t r, i;
-  int x, y;
-};
-
-__attribute__((used)) struct debug_info debug_get_coord(size_t i) {
-  struct debug_info ret;
-  ret.x = i % RES_X;
-  ret.y = i / RES_Y;
-  return ret;
-}
-
-struct camera {
-  double min_r, min_i, max_r, max_i;
-};
-
-typedef struct {
-  int32_t r; int32_t i;
-} FixedCord;
-
-static inline int iterate(FixedCord c) {
-  int32_t z_i = 0;
-  int32_t z_r = 0;
-  int32_t z_r_2, z_i_2, zn_r, zn_i;
-  for(int it = 0; it < ITERS; it++) {
-    z_r_2 = FIXED_MULTIPLY(z_r, z_r);
-    z_i_2 = FIXED_MULTIPLY(z_i, z_i);
-
-    zn_r = z_r_2 - z_i_2 + c.r;
-
-#ifdef SHIP
-    zn_i = abs(FIXED_MULTIPLY((DOUBLE_TO_FIXED(2)), (FIXED_MULTIPLY(z_r, z_i)))) + c.i;
-#else
-    zn_i = (FIXED_MULTIPLY((DOUBLE_TO_FIXED(2)), (FIXED_MULTIPLY(z_r, z_i)))) + c.i;
-#endif
-
-    z_i = zn_i;
-    z_r = zn_r;
-
-    if(z_i_2 + z_r_2 > INFTY_SQR_FIXED) return it;
-  }
-  return ITERS;
-}
-
-//blllluuuuurg, matracies and vectors in raylib are floats and we need doubles
-void shift_cam(struct camera *cam, double step_r, double step_i) {
-  double i_offset = (cam->max_i - cam->min_i) * step_i;
-  double r_offset = (cam->max_r - cam->min_r) * step_r;
-  cam->min_i += i_offset;
-  cam->max_i += i_offset;
-  cam->min_r += r_offset;
-  cam->max_r += r_offset;
-}
-
-void zoom_cam(struct camera *cam, double zoom) {
-  double i_scale = (cam->max_i - cam->min_i) * zoom;
-  double r_scale = (cam->max_r - cam->min_r) * zoom;
-  cam->min_i += i_scale;
-  cam->max_i -= i_scale;
-  cam->min_r += r_scale;
-  cam->max_r -= r_scale;
-}
-
-enum DIRECTIONS {
-  N, NE, E, SE, S, SW, W, NW
-};
-
-
-//we can inline these if needed
-
-inline bool bitarray_check(uint8_t *array, size_t i) {
-  return array[i/8] & (1 << (i%8));
-}
-
-inline void bitarray_set(uint8_t *array, size_t i) {
-  array[i/8] |= (1 << (i%8));
-}
-
-inline FixedCord get_neighbor_coord(FixedCord from_coord, int direction, FixedCord step) {
-  if((direction == NW) || (direction < E)) from_coord.i += step.i;
-  if((direction > N) && (direction < S)) from_coord.r += step.r;
-  if((direction > E) && (direction < W)) from_coord.i -= step.i;
-  if(direction > S) from_coord.r -= step.r;
-  return from_coord;
-}
-FixedCord get_neighbor_coord(FixedCord from_coord, int direction, FixedCord step);
-
-
-size_t get_neighbor_index(size_t from_pixel, int direction) {
-  const int neighbor_index_accl[8] = 
-    {-RES_X, -RES_X + 1, 1, RES_X + 1, RES_X, RES_X - 1, -1, -RES_X - 1};
-  from_pixel += neighbor_index_accl[direction];
-  //canidate for optimization; lots of branches. maybe inline
-  return from_pixel;
-}
-
-
-
-bool bitarray_check(uint8_t *array, size_t i);
-void bitarray_set(uint8_t *array, size_t i);
-#define BITARRAY_SET(array, i) ((array)[(i)/8] |= (1 << ((i) % 8)))
-#define BITARRAY_CLEAR(array, i) ((array)[(i)/8] &= ~(1 << ((i) % 8)))
-#define BITARRAY_CHECK(array, i) ((array)[(i)/8] & (1 << ((i) % 8)))
-          
-
-#define PRESORT_UNSOLVED      (1 << 0)
-#define PRESORT_VISITED       (1 << VISITED)  
-//#define PRESORT_INTERIOR      (1 << INTERIOR) //in set, NOT an edge
-//#define PRESORT_BACKTRACKED   (1 << BACKTRACED)
-//#define PRESORT_EXTERIOR      (1 << 
-
-//we'll be storing info in the green channel to utalize all available memory.
-//the following is bitmasks to do so
-#define GCHAN_RENDERED      (1 << 0)
-#define GCHAN_VISITED       (1 << 1)  
-#define GCHAN_BLOCKED       (1 << 2) //interior element or backtrack
-#define GCHAN_EXTERNAL      (1 << 3)
-#define GCHAN_DEBUG         (1 << 4) //extra, not nessesary
-
-/**
-void switch_pixel(coord &this_coord, const coord step, size_t this_index, int dir) {
-
-}
-**/
-
-unsigned int mandelbrot_bordertrace(struct camera *cam, Color *pixels) {
-  //these lookup tables r cheap cuz on the stm32f1, 1 memory read is 1 instruction
-  FixedCord scale = { 
-    .r = DOUBLE_TO_FIXED((cam->max_r - cam->min_r) / (double)RES_X), 
-    .i = DOUBLE_TO_FIXED((cam->max_i - cam->min_i) / (double)RES_Y)};
-  FixedCord c = {.r = 0, .i = DOUBLE_TO_FIXED(cam->max_i)};
-  unsigned int total_iters = 0;
-  size_t on_pixel = 0;
-
-  //for camera border calculations
-  int32_t cam_bord_fixed_n = DOUBLE_TO_FIXED(cam->min_i);
-  int32_t cam_bord_fixed_s = DOUBLE_TO_FIXED(cam->max_i);
-  int32_t cam_bord_fixed_e = DOUBLE_TO_FIXED(cam->max_r);
-  int32_t cam_bord_fixed_w = DOUBLE_TO_FIXED(cam->min_r);
-
-
-  //I know this is gross, just for debugigng!
-  //will clean up once I get things ironed out
-  Image img = GenImageColor(RES_X, RES_Y, BLUE);
-  Texture debug_tex = LoadTextureFromImage(img);
-  UnloadImage(img);
-  Color *debug_pix = malloc(RES_X * RES_Y * sizeof(Color));
-  memcpy(debug_pix, pixels, RES_X * RES_Y * sizeof(Color));
-  static Camera2D debug_cam = {0};
-  debug_cam.zoom = (float)GetRenderWidth()/RES_X;
-  
-
-
-  /**
-  //for keeping track of border only. will organize later
-  uint8_t set[(160*80)/8] = {0};
-  uint8_t unset[(160*80)/8] = {0};
-  **/
-
-  const Color debug_colors[] = 
-  { (Color) {0xff, 0x00, 0x00, 0xff},
-    (Color) {0xff, 0x00, 0xff, 0xff},
-    (Color) {0x00, 0xff, 0x00, 0xff},
-    (Color) {0x00, 0x00, 0xff, 0xff},
-    (Color) {0x6a, 0x00, 0xff, 0xff}
-  };
-  static int debug_color = 0;
-  for(int y = 0; y < RES_Y; y++) {
-    c.r = DOUBLE_TO_FIXED(cam->min_r);
-    for(int x = 0; x < RES_X; x++) {
-      int i = iterate(c);
-      total_iters += i;
-      pixels[on_pixel] = get_color(i);
-
-
-      if(i == ITERS) {
-        FixedCord this_coord = c;
-        size_t this_index = on_pixel;
-        int nei_priority[8];
-        int last_nei_priority[8];
-        int last_direction = E;
-        int nei_presort[8];
-        
-        //only really need to zero green channel
-        bzero(pixels, RES_X * RES_Y * sizeof(*pixels)); 
-
-        //this is so fucking knarly
-        printf("NEW BORDER\n");
-        while(true) {
-          //step 1: check pixels around us, fill in neighbors.
-          bzero(nei_presort, sizeof(nei_presort));
-
-          //find if we're pushed against screen border. 
-          //feels gross but I don't think there's a better way
-          if((this_coord.i - scale.i) < cam_bord_fixed_n) {
-            for(int nei_dir = SE; nei_dir <= SW; nei_dir++)
-              nei_presort[nei_dir] = GCHAN_EXTERNAL;
-          }
-          else if((this_coord.i + scale.i) > cam_bord_fixed_s) {
-              nei_presort[NE] = GCHAN_EXTERNAL;
-              nei_presort[N] = GCHAN_EXTERNAL;
-              nei_presort[NW] = GCHAN_EXTERNAL;
-          }
-          if((this_coord.r - scale.r) < cam_bord_fixed_w) {
-            for(int nei_dir = SW; nei_dir < NW; nei_dir++)
-              nei_presort[nei_dir] = GCHAN_EXTERNAL;
-          }
-          else if((this_coord.r + scale.r) > cam_bord_fixed_e) {
-            for(int nei_dir = NE; nei_dir < SE; nei_dir++)
-              nei_presort[nei_dir] = GCHAN_EXTERNAL;
-          }
-
-
-
-          /** now fill in neighbor info based on green channel,
-           *  iterate if no info available.
-           *  if this is to slow we could flatten this; it's predictable
-           *  where there will be info
-           **/  
-          // TODO replace modulos with something faster
-          bool interior = true;
-          for(int nei_dir = 0; nei_dir < 8; nei_dir++) {
-            size_t nei_i;
-            uint8_t gchan_info;
-
-            //happens if we're pushed against the screen
-            if(nei_presort[nei_dir] == GCHAN_EXTERNAL) {
-              interior = false;
-              continue;
-            }
-
-            nei_i = get_neighbor_index(this_index, nei_dir);
-            gchan_info = pixels[nei_i].g;
-            //note that when we move this over, there will be no alpha channel.
-            //gchan_info will be extracted differently!!!
-            if(gchan_info & GCHAN_RENDERED) {
-              gchan_info &= ~(GCHAN_RENDERED);
-
-              if(gchan_info & GCHAN_EXTERNAL) {
-                interior = false;
-                gchan_info = GCHAN_BLOCKED;
-              }
-
-              if(gchan_info & GCHAN_BLOCKED) gchan_info = GCHAN_BLOCKED;
-
-              nei_presort[nei_dir] = gchan_info;
-            }
-            else {
-              int i = iterate(get_neighbor_coord(this_coord, nei_dir, scale));
-              pixels[nei_i] = get_color(i);
-              pixels[nei_i].g = GCHAN_RENDERED;
-              if(i == ITERS) nei_presort[nei_dir] = 0;
-              else {
-                //exterior
-                interior = false;
-                nei_presort[nei_dir] = GCHAN_BLOCKED;
-                pixels[nei_i].g |= GCHAN_EXTERNAL;
-              }
-            }
-          }
-          if(interior) {
-            printf("interior\n");
-            asm volatile("interior_check:");
-            pixels[this_index].g = GCHAN_RENDERED | GCHAN_BLOCKED;
-            //printf("bruh\n");
-            memcpy(nei_priority, last_nei_priority, sizeof(nei_priority));
-            nei_priority[last_direction] = -1;
-            this_index = get_neighbor_index(this_index, (last_direction + 4) % 8);
-            this_coord = get_neighbor_coord(
-                this_coord, (last_direction + 4) % 8, scale);
-            pixels[this_index].g ^= GCHAN_VISITED; //so we don't think we need to backtrack
-          }
-          else {
-            int blocked_cnt = 0;
-            for(int nei_dir = 0; nei_dir < 8; nei_dir++) {
-              int offset_cw = (last_direction - nei_dir) % 8;
-              int offset_ccw = (nei_dir - last_direction) % 8;
-              int forward_offset;
-              switch(nei_presort[nei_dir]) {
-                case GCHAN_VISITED:
-                  nei_priority[nei_dir] = 15;
-                  break;
-                case GCHAN_BLOCKED:
-                case GCHAN_EXTERNAL:
-                  nei_priority[nei_dir] = -1;
-                  blocked_cnt++;
-                  break;
-                default: //unvisited element
-                  if((nei_presort[(nei_dir - 1) % 8] == 0) || 
-                      (nei_presort[(nei_dir + 1) % 8] == 0)) {
-                    nei_priority[nei_dir] = 3;
-                    break;
-                  }
-                  if((nei_presort[(nei_dir - 1) % 8] == GCHAN_VISITED) || 
-                      (nei_presort[(nei_dir + 1) % 8] == GCHAN_VISITED)) {
-                    nei_priority[nei_dir] = 7;
-                    break;
-                  }
-                  nei_priority[nei_dir] = 11;
-                  break;
-              }
-              if(nei_priority[nei_dir] < 0) continue;
-              forward_offset = abs((offset_cw < offset_ccw) ? 
-                  offset_cw : offset_ccw);
-              if(forward_offset < 3) nei_priority[nei_dir] -= (3-forward_offset);
-            }
-            if(blocked_cnt == 8) {
-              for(int nd = 0; nd < 8; nd++) printf("%i, ", nei_priority[nd]);
-              printf("we blocked ourselves in!\n");
-              for(;;) sleep(10);
-              exit(1);
-            }
-          }
-          for(int priority = 0; priority < 17; priority++) {
-            for(int nei_dir = 0; nei_dir < 8; nei_dir++) {
-              if(nei_priority[nei_dir] != priority) continue;
-              if(nei_dir % 2) continue;
-              printf("(%zu, %zu): dir %i. [", this_index % RES_X, this_index / RES_X, nei_dir);
-              for(int nd = 0; nd < 8; nd++) printf("%i, ", nei_priority[nd]);
-              printf("] -> ");
-
-//              if(pixels[this_index].g & GCHAN_VISITED) {
-              if(priority >= 12) {
-                pixels[this_index].g |= GCHAN_BLOCKED;
-                printf("backtracking!!!\n");
-              }
-              else 
-                pixels[this_index].g |= GCHAN_VISITED;
-
-              memcpy(last_nei_priority, nei_priority, sizeof(nei_priority));
-              last_direction = nei_dir;
-              this_index = get_neighbor_index(this_index, nei_dir);
-              this_coord = get_neighbor_coord(this_coord, nei_dir, scale);
-              printf("(%zu, %zu)\n", this_index % RES_X, this_index / RES_X);
-
-              debug_x = this_index % RES_X;
-              debug_y = this_index / RES_X;
-
-              /**
-              BeginDrawing();
-              DrawPixel(debug_x, debug_y, 
-                  debug_colors[debug_color % (sizeof(debug_colors) / sizeof(*debug_colors))]);
-              EndDrawing();
-              */
-
-              //FOR VISUAL DEBUGGING- read warning on line 0!
-              {
-                static bool hit_debug_pix = false;
-                const float dbg_cam_step = 100;
-                const float dbg_cam_zoom = .25;
-                if((debug_x == 1046) && (debug_y == 126)) hit_debug_pix = true;
-                if(hit_debug_pix) {
-                  for(;;) {
-                    switch(GetKeyPressed()) {
-                      case KEY_UP:
-                        debug_cam.offset.y += dbg_cam_step;
-                        break;
-                      case KEY_DOWN:
-                        debug_cam.offset.y -= dbg_cam_step;
-                        break;
-                      case KEY_RIGHT:
-                        debug_cam.offset.x += dbg_cam_step;
-                        break;
-                      case KEY_LEFT:
-                        debug_cam.offset.x -= dbg_cam_step;
-                        break;
-                      case KEY_W:
-                        debug_cam.zoom += dbg_cam_zoom;
-                        break;
-                      case KEY_S:
-                        debug_cam.zoom -= dbg_cam_zoom;
-                        break;
-                      case KEY_ENTER:
-                        goto switch_pixel;
-                      default:
-  //                        BeginDrawing();
-                        BeginDrawing();
-                        const int dbg_clrs = 32;
-                        uint8_t this_dbg_clr = 
-                          ((debug_color++) % dbg_clrs) * (255 / dbg_clrs);
-                        debug_pix[this_index] = 
-                          (Color) {this_dbg_clr, this_dbg_clr, this_dbg_clr, 255};
-                        BeginDrawing();
-                        UpdateTexture(debug_tex, debug_pix);
-                        DrawTextureEx(debug_tex, (Vector2)
-                            {0 - debug_cam.offset.x, debug_cam.offset.y}, 0, 
-                            debug_cam.zoom, WHITE);
-                        EndDrawing();
-  //                        EndDrawing();
-                    }
-                  }
-                }
-              }
-              goto switch_pixel;
-            }
-          }
-          switch_pixel:
-        }
-        debug_color++;
-      }
-      on_pixel++;
-      c.r += scale.r;
-    }
-    c.i -= scale.i;
-  }
-  return total_iters;
-}
-
-unsigned int mandelbrot_unoptimized(struct camera *cam, Color *pixels) {
-  FixedCord scale = { .r = DOUBLE_TO_FIXED((cam->max_r - cam->min_r) / (double)RES_X), .i = DOUBLE_TO_FIXED((cam->max_i - cam->min_i) / (double)RES_Y) };
-  FixedCord c = { .r = 0, .i = DOUBLE_TO_FIXED(cam->max_i) };
-  unsigned int total_iters = 0;
-  for(int y = 0; y < RES_Y; y++) {
-    c.r = DOUBLE_TO_FIXED(cam->min_r);
-    for(int x = 0; x < RES_X; x++) {
-      int i = iterate(c);
-      total_iters += i;
-      pixels[((y * RES_X) + x)] = get_color(i);
-      c.r += scale.r;
-    }
-    c.i -= scale.i;
-  }
-  return total_iters;
-}
-
-void test() {
-  uint8_t bitarray[(160*80)/8] = {0};
-  int test_i = 9;
-  BITARRAY_SET(bitarray, test_i);
-  printf("%s\n", BITARRAY_CHECK(bitarray, 9) ? "true" : "false");
-}
-
-int main() {
-  //test();
-  //return 0;
-  Color *pixels = malloc(RES_X * RES_Y * sizeof(Color));
-  struct camera cam = {
-    .min_r = -1,
-    .max_r = 1,
-  //  .min_i = -1,
-  //  .max_i = 1
-  };
-  cam.min_i = ((double)RES_Y / RES_X) * cam.min_r;
-  cam.max_i = ((double)RES_Y / RES_X) * cam.max_r;
-  InitWindow(WINDOW_SIZE_X, WINDOW_SIZE_Y, "mandelbrot fixed point test");
-
-  Image img = GenImageColor(RES_X, RES_Y, BLUE);
-  Texture tex = LoadTextureFromImage(img);
-  Texture backdrop = LoadTextureFromImage(img);
-  UnloadImage(img);
-
-  SetTargetFPS(60);
-
-
-  while(!WindowShouldClose()) {
-    switch(GetKeyPressed()) {
-      case KEY_UP:
-        shift_cam(&cam, 0, STEP_SIZE);
-        break;
-      case KEY_DOWN:
-        shift_cam(&cam, 0, -STEP_SIZE);
-        break;
-      case KEY_RIGHT:
-        shift_cam(&cam, STEP_SIZE, 0);
-        break;
-      case KEY_LEFT:
-        shift_cam(&cam, -STEP_SIZE, 0);
-        break;
-      case KEY_W:
-        zoom_cam(&cam, ZOOM_SIZE);
-        break;
-      case KEY_S:
-        zoom_cam(&cam, -ZOOM_SIZE);
-        break;
-      default:
-        BeginDrawing();
-        EndDrawing();
-        continue;
-        break;
-    }
-    printf("(%.21f, %.21f) - (%.21f, %.21f)\n", cam.min_r, cam.min_i, cam.max_r, cam.max_i);
-
-    printf("Unoptimized: %u iterations\n", mandelbrot_unoptimized(&cam, pixels));
-    BeginDrawing();
-    UpdateTexture(backdrop, pixels);
-    DrawTextureEx(backdrop, (Vector2){0,0}, 0, (float)GetRenderWidth()/RES_X, WHITE);
-    EndDrawing();
-
-    /**
-    printf("Border tracing: %u iterations\n", mandelbrot_bordertrace(&cam, pixels));
-    BeginDrawing();
-    UpdateTexture(tex, pixels);
-    DrawTextureEx(tex, (Vector2){0,0}, 0, (float)GetRenderWidth()/RES_X, WHITE);
-    EndDrawing();
-    **/
-
-  }
-
-  return 0;
-}

recon/mandelbrot_tests/c/fuckingkillme

@@ -1,561 +0,0 @@
-/** READ BEFORE JUDING!
- * Yes, I know this code is a mess. Debug code is added
- * happhazardly, two cameras are used, etc.
- * That's because it's a temporary program
- * to create optimizations and debug rendering issues without hardware.
- * None of this is going to be included in the project, and the code is thus
- * not extensible or organized; it really doesn't save any effort to do so.
- *
- * This code is meant for my eyes only. You've been warned!
- *
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <raylib.h>
-#include <raymath.h>
-#include <limits.h>
-#include <complex.h>
-#include <string.h>
-#include <unistd.h>
-
-#define WINDOW_SIZE_X     1600
-#define WINDOW_SIZE_Y     800
-#define RES_X             1600
-#define RES_Y             800
-#define DEFAULT_CENTER_X  0
-#define DEFAULT_CENTER_Y  0
-#define MOUSE_BUTTON      0
-#define STEP_SIZE         .1
-#define ZOOM_SIZE         .1
-
-
-#define DECIMAL_LOC           28
-#define DOUBLE_SCALER         (1 << DECIMAL_LOC)
-#define DOUBLE_TO_FIXED(val)  (int32_t)((val) * DOUBLE_SCALER)
-#define FIXED_MULTIPLY(x,y)   ((((uint64_t)(x))*(y)) >> DECIMAL_LOC)
-#define FIXED_TO_DOUBLE(val)  ((val) / (double)DOUBLE_SCALER)
-
-#define INFTY     2
-#define INFTY_SQR INFTY * INFTY
-#define ITERS     255
-#define INFTY_SQR_FIXED DOUBLE_TO_FIXED(INFTY_SQR)
-
-//#define SHIP
-//#undef SHIP
-  
-int debug_x, debug_y;
-
-
-#ifdef SHIP
-Color get_color(int i) {
-  if(i == ITERS) return (Color){0, 0, 0, 255};
-  if(i == 0) return (Color){0, 0, 0, 255};
-    return (Color) {
-        2*(i - 128)+255,
-          0,
-          0,
-        255
-    };
-}
-#else
-Color get_color(int i) {
-//  if((i == ITERS) || (i == 0)) return (Color){0, 0, 0, 255};
-  if(i == ITERS) return (Color){0,0,0,255};
-  if(i == 0) return (Color){0,0,1,255};
-  if(i < 128) {
-    return (Color) {
-        (8*(i - 128)+255) & 0xff,
-        0,
-        (16*(i - 64)+255) & 0xff,
-        255
-    };
-  }
-    return (Color) {
-      0,
-        0,
-      ((unsigned int)-2*(i - 128)+255) & 0xff,
-        255
-    };
-}
-#endif
-
-
-//TODO remove
-struct debug_info {
-  int32_t r, i;
-  int x, y;
-};
-
-__attribute__((used)) struct debug_info debug_get_coord(size_t i) {
-  struct debug_info ret;
-  ret.x = i % RES_X;
-  ret.y = i / RES_Y;
-  return ret;
-}
-
-struct camera {
-  double min_r, min_i, max_r, max_i;
-};
-
-typedef struct {
-  int32_t r; int32_t i;
-} FixedCord;
-
-static inline int iterate(FixedCord c) {
-  int32_t z_i = 0;
-  int32_t z_r = 0;
-  int32_t z_r_2, z_i_2, zn_r, zn_i;
-  for(int it = 0; it < ITERS; it++) {
-    z_r_2 = FIXED_MULTIPLY(z_r, z_r);
-    z_i_2 = FIXED_MULTIPLY(z_i, z_i);
-
-    zn_r = z_r_2 - z_i_2 + c.r;
-
-#ifdef SHIP
-    zn_i = abs(FIXED_MULTIPLY((DOUBLE_TO_FIXED(2)), (FIXED_MULTIPLY(z_r, z_i)))) + c.i;
-#else
-    zn_i = (FIXED_MULTIPLY((DOUBLE_TO_FIXED(2)), (FIXED_MULTIPLY(z_r, z_i)))) + c.i;
-#endif
-
-    z_i = zn_i;
-    z_r = zn_r;
-
-    if(z_i_2 + z_r_2 > INFTY_SQR_FIXED) return it;
-  }
-  return ITERS;
-}
-
-//blllluuuuurg, matracies and vectors in raylib are floats and we need doubles
-void shift_cam(struct camera *cam, double step_r, double step_i) {
-  double i_offset = (cam->max_i - cam->min_i) * step_i;
-  double r_offset = (cam->max_r - cam->min_r) * step_r;
-  cam->min_i += i_offset;
-  cam->max_i += i_offset;
-  cam->min_r += r_offset;
-  cam->max_r += r_offset;
-}
-
-void zoom_cam(struct camera *cam, double zoom) {
-  double i_scale = (cam->max_i - cam->min_i) * zoom;
-  double r_scale = (cam->max_r - cam->min_r) * zoom;
-  cam->min_i += i_scale;
-  cam->max_i -= i_scale;
-  cam->min_r += r_scale;
-  cam->max_r -= r_scale;
-}
-
-enum DIRECTIONS {
-  N, NE, E, SE, S, SW, W, NW
-};
-
-
-//we can inline these if needed
-
-inline bool bitarray_check(uint8_t *array, size_t i) {
-  return array[i/8] & (1 << (i%8));
-}
-
-inline void bitarray_set(uint8_t *array, size_t i) {
-  array[i/8] |= (1 << (i%8));
-}
-
-inline FixedCord get_neighbor_coord(FixedCord from_coord, int direction, FixedCord step) {
-  if((direction == NW) || (direction < E)) from_coord.i += step.i;
-  if((direction > N) && (direction < S)) from_coord.r += step.r;
-  if((direction > E) && (direction < W)) from_coord.i -= step.i;
-  if(direction > S) from_coord.r -= step.r;
-  return from_coord;
-}
-FixedCord get_neighbor_coord(FixedCord from_coord, int direction, FixedCord step);
-
-
-size_t get_neighbor_index(size_t from_pixel, int direction) {
-  const int neighbor_index_accl[8] = 
-    {-RES_X, -RES_X + 1, 1, RES_X + 1, RES_X, RES_X - 1, -1, -RES_X - 1};
-  from_pixel += neighbor_index_accl[direction];
-  //canidate for optimization; lots of branches. maybe inline
-  return from_pixel;
-}
-
-
-
-bool bitarray_check(uint8_t *array, size_t i);
-void bitarray_set(uint8_t *array, size_t i);
-#define BITARRAY_SET(array, i) ((array)[(i)/8] |= (1 << ((i) % 8)))
-#define BITARRAY_CLEAR(array, i) ((array)[(i)/8] &= ~(1 << ((i) % 8)))
-#define BITARRAY_CHECK(array, i) ((array)[(i)/8] & (1 << ((i) % 8)))
-
-//we'll be storing info in the green channel to utalize available memory 
-//per pixel.
-
-#define GCHAN_BLOCKED       (1 << 0) //interior element or visiteed
-#define GCHAN_INTERNAL      (1 << 1) //part of set
-#define GCHAN_EXTERNAL      (1 << 2) //not part of set
-#define GCHAN_DEBUG         (1 << 3) //extra, not nessesary
-
-#define BACKSTACK_SIZE      32
-
-
-/**
-void switch_pixel(coord &this_coord, const coord step, size_t this_index, int dir) {
-
-}
-**/
-
-void debug_step(Color *pix, Texture *tex, size_t index) {
-  static Camera2D cam = {0};
-  if(!cam.zoom) cam.zoom = (float)GetRenderWidth()/RES_X;
-  static int debug_color = 0;
-  const Color debug_colors[] = 
-  { (Color) {0xff, 0x00, 0x00, 0xff},
-    (Color) {0xff, 0x00, 0xff, 0xff},
-    (Color) {0x00, 0xff, 0x00, 0xff},
-    (Color) {0x00, 0x00, 0xff, 0xff},
-    (Color) {0x6a, 0x00, 0xff, 0xff}
-  };
-  const float dbg_cam_step = 100;
-  const float dbg_cam_zoom = .25;
-
-  for(;;) {
-    switch(GetKeyPressed()) {
-      case KEY_UP:
-        cam.offset.y += dbg_cam_step;
-        break;
-      case KEY_DOWN:
-        cam.offset.y -= dbg_cam_step;
-        break;
-      case KEY_RIGHT:
-        cam.offset.x += dbg_cam_step;
-        break;
-      case KEY_LEFT:
-        cam.offset.x -= dbg_cam_step;
-        break;
-      case KEY_W:
-        cam.zoom += dbg_cam_zoom;
-        break;
-      case KEY_S:
-        cam.zoom -= dbg_cam_zoom;
-        break;
-      case KEY_ENTER:
-        return;
-      default:
-        BeginDrawing();
-        const int dbg_clrs = 32;
-        uint8_t this_dbg_clr = 
-          ((debug_color++) % dbg_clrs) * (255 / dbg_clrs);
-        pix[index] = 
-          (Color) {this_dbg_clr, this_dbg_clr, this_dbg_clr, 255};
-        BeginDrawing();
-        UpdateTexture(*tex, pix);
-        DrawTextureEx(*tex, (Vector2)
-            {0 - cam.offset.x, cam.offset.y}, 0, 
-            cam.zoom, WHITE);
-        EndDrawing();
-    }
-  }
-}
-
-unsigned int mandelbrot_bordertrace(struct camera *cam, Color *pixels) {
-  //these lookup tables r cheap cuz on the stm32f1, 1 memory read is 1 instruction
-  FixedCord scale = { 
-    .r = DOUBLE_TO_FIXED((cam->max_r - cam->min_r) / (double)RES_X), 
-    .i = DOUBLE_TO_FIXED((cam->max_i - cam->min_i) / (double)RES_Y)};
-  FixedCord c = {.r = 0, .i = DOUBLE_TO_FIXED(cam->max_i)};
-  unsigned int total_iters = 0;
-  size_t on_pixel = 0;
-
-  //for camera border calculations
-  int32_t cam_bord_fixed_n = DOUBLE_TO_FIXED(cam->min_i);
-  int32_t cam_bord_fixed_s = DOUBLE_TO_FIXED(cam->max_i);
-  int32_t cam_bord_fixed_e = DOUBLE_TO_FIXED(cam->max_r);
-  int32_t cam_bord_fixed_w = DOUBLE_TO_FIXED(cam->min_r);
-
-
-  //I know this is gross, just for debugigng!
-  //will clean up once I get things ironed out
-  Image img = GenImageColor(RES_X, RES_Y, BLUE);
-  Texture debug_tex = LoadTextureFromImage(img);
-  UnloadImage(img);
-  Color *debug_pix = malloc(RES_X * RES_Y * sizeof(Color));
-  memcpy(debug_pix, pixels, RES_X * RES_Y * sizeof(Color));
-  
-
-
-  /**
-  //for keeping track of border only. will organize later
-  uint8_t set[(160*80)/8] = {0};
-  uint8_t unset[(160*80)/8] = {0};
-  **/
-
-  for(int y = 0; y < RES_Y; y++) {
-    c.r = DOUBLE_TO_FIXED(cam->min_r);
-    for(int x = 0; x < RES_X; x++) {
-      int i = iterate(c);
-      total_iters += i;
-      pixels[on_pixel] = get_color(i);
-
-
-      if(i == ITERS) {
-        FixedCord this_coord = c;
-        size_t this_index = on_pixel;
-        int nei_priority[8];
-        int last_nei_priority[8];
-        int last_direction = E;
-        int nei_presort[8];
-        
-        size_t backstack[BACKSTACK_SIZE];
-        size_t backstack_i = 0;
-        
-        //only really need to zero green channel
-        bzero(pixels, RES_X * RES_Y * sizeof(*pixels)); 
-
-        //this is so fucking knarly
-        printf("NEW BORDER\n");
-        while(true) {
-          //step 1: check pixels around us, fill in neighbors.
-          bzero(nei_presort, sizeof(nei_presort));
-
-          //find if we're pushed against screen border. 
-          //feels gross but I don't think there's a better way
-          if((this_coord.i - scale.i) < cam_bord_fixed_n) {
-            for(int nei_dir = SE; nei_dir <= SW; nei_dir++)
-              nei_presort[nei_dir] = GCHAN_EXTERNAL;
-          }
-          else if((this_coord.i + scale.i) > cam_bord_fixed_s) {
-              nei_presort[NE] = GCHAN_EXTERNAL;
-              nei_presort[N] = GCHAN_EXTERNAL;
-              nei_presort[NW] = GCHAN_EXTERNAL;
-          }
-          if((this_coord.r - scale.r) < cam_bord_fixed_w) {
-            for(int nei_dir = SW; nei_dir < NW; nei_dir++)
-              nei_presort[nei_dir] = GCHAN_EXTERNAL;
-          }
-          else if((this_coord.r + scale.r) > cam_bord_fixed_e) {
-            for(int nei_dir = NE; nei_dir < SE; nei_dir++)
-              nei_presort[nei_dir] = GCHAN_EXTERNAL;
-          }
-
-
-
-          /** now fill in neighbor info based on green channel,
-           *  iterate if no info available.
-           *  if this is to slow we could flatten this; it's predictable
-           *  where there will be info
-           **/  
-          // TODO replace modulos with something faster
-          bool interior = true;
-          for(int nei_dir = 0; nei_dir < 8; nei_dir++) {
-            size_t nei_i;
-            uint8_t gchan_info;
-
-            //happens if we're pushed against the screen
-            if(nei_presort[nei_dir] == GCHAN_EXTERNAL) {
-              interior = false;
-              nei_presort[nei_dir] = GCHAN_EXTERNAL;
-              continue;
-            }
-
-            nei_i = get_neighbor_index(this_index, nei_dir);
-            gchan_info = pixels[nei_i].g;
-            //note that when we move this over, there will be no alpha channel.
-            //gchan_info will be extracted differently!!!
-            if(gchan_info) {
-              if(gchan_info & GCHAN_EXTERNAL) interior = false;
-              nei_presort[nei_dir] = gchan_info;
-            }
-            else {
-              int i = iterate(get_neighbor_coord(this_coord, nei_dir, scale));
-              pixels[nei_i] = get_color(i);
-              if(i == ITERS) nei_presort[nei_dir] = GCHAN_INTERNAL;
-              else {
-                //exterior
-                interior = false;
-                nei_presort[nei_dir] = GCHAN_EXTERNAL;
-              }
-              pixels[nei_i].g = nei_presort[nei_dir];
-            }
-          }
-          //go back if we're in the interior and not an edge
-          if(interior) {
-            printf("interior\n");
-            asm volatile("interior_check:");
-            pixels[this_index].g = GCHAN_BLOCKED;
-            //printf("bruh\n");
-            memcpy(nei_priority, last_nei_priority, sizeof(nei_priority));
-            nei_priority[last_direction] = -1;
-            this_index = get_neighbor_index(this_index, (last_direction + 4) % 8);
-            this_coord = get_neighbor_coord(
-                this_coord, (last_direction + 4) % 8, scale);
-            pixels[this_index].g = GCHAN_BLOCKED; //so we don't think we need to backtrack
-          }
-          else {
-            int edge_cnt = 0;
-            //sort into prioraties
-            for(int nei_dir = 0; nei_dir < 8; nei_dir += 2) {
-              int nei_1 = nei_presort[(nei_dir + 1) % 8];
-              int nei_2 = nei_presort[(nei_dir - 1) % 8];
-              if((nei_presort[nei_dir] != GCHAN_INTERNAL) || ((nei_1 & nei_2) & (GCHAN_EXTERNAL | GCHAN_BLOCKED))) {
-                nei_priority[nei_dir] = -1;
-              }
-              else if(((nei_1 ^ nei_2) & (GCHAN_INTERNAL | GCHAN_EXTERNAL)) == (GCHAN_INTERNAL | GCHAN_EXTERNAL)) {
-                edge_cnt++;
-                nei_priority[nei_dir] = 0;
-              }
-              else if(nei_1 & nei_2 & GCHAN_INTERNAL) {
-                nei_priority[nei_dir] = 1;
-              }
-              else if(((nei_1 ^ nei_2) & (GCHAN_BLOCKED | GCHAN_EXTERNAL)) == (GCHAN_BLOCKED | GCHAN_EXTERNAL)) {
-                nei_priority[nei_dir] = 2;
-              }
-            }
-            if(edge_cnt >= 2) { 
-              backstack[backstack_i] = this_index;
-              if(backstack_i++ > BACKSTACK_SIZE) {
-                printf("max backstack\n");
-                for(;;);
-              }
-              printf("backstack increased\n");
-            }
-          }
-          //now go to canidate with lowest prioraty
-          for(int priority = 0; priority <= 1; priority++) {
-            for(int nei_dir = 0; nei_dir < 8; nei_dir += 2) {
-              if(nei_priority[nei_dir] != priority) continue;
-              printf("(%zu, %zu): dir %i. [", this_index % RES_X, this_index / RES_X, nei_dir);
-              for(int nd = 0; nd < 8; nd++) printf("%i, ", nei_priority[nd]);
-              printf("] -> ");
-
-              pixels[this_index].g = GCHAN_BLOCKED;
-
-              memcpy(last_nei_priority, nei_priority, sizeof(nei_priority));
-              this_index = get_neighbor_index(this_index, nei_dir);
-              this_coord = get_neighbor_coord(this_coord, nei_dir, scale);
-              printf("(%zu, %zu)\n", this_index % RES_X, this_index / RES_X);
-
-              debug_x = this_index % RES_X;
-              debug_y = this_index / RES_X;
-
-              //FOR VISUAL DEBUGGING- read warning on line 0!
-              {
-                static bool hit_debug_pix = true;
-                if((debug_x == 1046) && (debug_y == 126)) hit_debug_pix = true;
-                if(hit_debug_pix) debug_step(debug_pix, &debug_tex, this_index);
-              }
-              goto next_pixel;
-            }
-          }
-          printf("checking backtrack stack\nThis pri:");
-          for(int nd = 0; nd < 8; nd++) printf("%i, ", nei_priority[nd]);
-          printf("\n");
-          if(--backstack_i > BACKSTACK_SIZE) {
-            printf("backstack depleated, no recovery\n");
-            for(;;);
-          }
-          printf("%lu\n", backstack_i);
-          this_index = backstack[backstack_i];
-          this_coord.r = (((this_index % RES_X) / (float)RES_X) * (cam->max_r - cam->min_r)) + cam->min_r;
-          this_coord.i = (((this_index / RES_X) / (float)RES_Y) * (cam->max_i - cam->min_i)) + cam->min_i;
-          debug_step(debug_pix, &debug_tex, this_index);
-          next_pixel:
-        }
-      }
-      on_pixel++;
-      c.r += scale.r;
-    }
-    c.i -= scale.i;
-  }
-  return total_iters;
-}
-
-unsigned int mandelbrot_unoptimized(struct camera *cam, Color *pixels) {
-  FixedCord scale = { .r = DOUBLE_TO_FIXED((cam->max_r - cam->min_r) / (double)RES_X), .i = DOUBLE_TO_FIXED((cam->max_i - cam->min_i) / (double)RES_Y) };
-  FixedCord c = { .r = 0, .i = DOUBLE_TO_FIXED(cam->max_i) };
-  unsigned int total_iters = 0;
-  for(int y = 0; y < RES_Y; y++) {
-    c.r = DOUBLE_TO_FIXED(cam->min_r);
-    for(int x = 0; x < RES_X; x++) {
-      int i = iterate(c);
-      total_iters += i;
-      pixels[((y * RES_X) + x)] = get_color(i);
-      c.r += scale.r;
-    }
-    c.i -= scale.i;
-  }
-  return total_iters;
-}
-
-void test() {
-  uint8_t bitarray[(160*80)/8] = {0};
-  int test_i = 9;
-  BITARRAY_SET(bitarray, test_i);
-  printf("%s\n", BITARRAY_CHECK(bitarray, 9) ? "true" : "false");
-}
-
-int main() {
-  //test();
-  //return 0;
-  Color *pixels = malloc(RES_X * RES_Y * sizeof(Color));
-  struct camera cam = {
-    .min_r = -1,
-    .max_r = 1,
-  //  .min_i = -1,
-  //  .max_i = 1
-  };
-  cam.min_i = ((double)RES_Y / RES_X) * cam.min_r;
-  cam.max_i = ((double)RES_Y / RES_X) * cam.max_r;
-  InitWindow(WINDOW_SIZE_X, WINDOW_SIZE_Y, "mandelbrot fixed point test");
-
-  Image img = GenImageColor(RES_X, RES_Y, BLUE);
-  Texture tex = LoadTextureFromImage(img);
-  Texture backdrop = LoadTextureFromImage(img);
-  UnloadImage(img);
-
-  SetTargetFPS(60);
-
-
-  while(!WindowShouldClose()) {
-    switch(GetKeyPressed()) {
-      case KEY_UP:
-        shift_cam(&cam, 0, STEP_SIZE);
-        break;
-      case KEY_DOWN:
-        shift_cam(&cam, 0, -STEP_SIZE);
-        break;
-      case KEY_RIGHT:
-        shift_cam(&cam, STEP_SIZE, 0);
-        break;
-      case KEY_LEFT:
-        shift_cam(&cam, -STEP_SIZE, 0);
-        break;
-      case KEY_W:
-        zoom_cam(&cam, ZOOM_SIZE);
-        break;
-      case KEY_S:
-        zoom_cam(&cam, -ZOOM_SIZE);
-        break;
-      default:
-        BeginDrawing();
-        EndDrawing();
-        continue;
-        break;
-    }
-    printf("(%.21f, %.21f) - (%.21f, %.21f)\n", cam.min_r, cam.min_i, cam.max_r, cam.max_i);
-
-    printf("Unoptimized: %u iterations\n", mandelbrot_unoptimized(&cam, pixels));
-    BeginDrawing();
-    UpdateTexture(backdrop, pixels);
-    DrawTextureEx(backdrop, (Vector2){0,0}, 0, (float)GetRenderWidth()/RES_X, WHITE);
-    EndDrawing();
-
-    printf("Border tracing: %u iterations\n", mandelbrot_bordertrace(&cam, pixels));
-    BeginDrawing();
-    UpdateTexture(tex, pixels);
-    DrawTextureEx(tex, (Vector2){0,0}, 0, (float)GetRenderWidth()/RES_X, WHITE);
-    EndDrawing();
-
-  }
-
-  return 0;
-}

recon/mandelbrot_tests/c/main.c

@@ -189,6 +189,7 @@ void switch_pixel(coord &this_coord, const coord step, size_t this_index, int di
 **/
 
 void debug_step(Color *pix, Texture *tex, size_t index, bool pause) {
+//  return;
 //        SetTargetFPS(0);
   static bool fuckin_manual_pause_iguess = false;
   static Camera2D cam = {0};
@@ -197,7 +198,7 @@ void debug_step(Color *pix, Texture *tex, size_t index, bool pause) {
   const float dbg_cam_step = 100;
   const float dbg_cam_zoom = 1.5;
 
-  (pause || fuckin_manual_pause_iguess) ? SetTargetFPS(60) : SetTargetFPS(0);
+//  (pause || fuckin_manual_pause_iguess) ? SetTargetFPS(60) : SetTargetFPS(0);
 
   
 
@@ -232,14 +233,15 @@ void debug_step(Color *pix, Texture *tex, size_t index, bool pause) {
       default:
         BeginDrawing();
         pix[index] = 
-          (Color) {0, pix[index].g, 255, 255};
+          (Color) {255, pix[index].g, 255, 255};
         BeginDrawing();
         UpdateTexture(*tex, pix);
         DrawTextureEx(*tex, (Vector2)
             {0 - cam.offset.x, cam.offset.y}, 0, 
             cam.zoom, WHITE);
         EndDrawing();
-        if(!pause && !fuckin_manual_pause_iguess) return;
+        return;
+ //       if(!pause && !fuckin_manual_pause_iguess) return;
     }
   }
 }
@@ -316,7 +318,7 @@ unsigned int mandelbrot_bordertrace(struct camera *cam, Color *pixels) {
           if(border_scanning) {
             //pixels[on_pixel] = get_color(ITERS);
             //printf("interior\n");
-            pixels[on_pixel] = (Color){0xfe,0,0xfe,0xff};
+            pixels[on_pixel] = (Color){0x00,0,0x0,0xff};
             break;
           }
           //printf("rendering %i, %i (%lu)\n", x, y, on_pixel);
@@ -446,11 +448,6 @@ unsigned int mandelbrot_bordertrace(struct camera *cam, Color *pixels) {
           }
           else pixels[on_pixel].g = GCHAN_EXTERNAL;
           break;
-          /**
-        case GCHAN_INNER_CLOSED:
-          if(((x + 2) < RES_X) && (pixels[on_pixel + 1].g == GCHAN_UNRENDERED)) border_scanning = SCAN_MODE_NONE;
-          break;
-          **/
         default: 
           border_scanning = SCAN_MODE_NONE;
       }
@@ -525,9 +522,7 @@ int main() {
 
 
   
-  struct camera cam = {
+  struct camera cam = (struct camera) {-0.641121775196897503157, 0.410802460984564632440, -0.638087553194557455249, 0.412319571985918953416};
-    .min_r = -0.640818352996663453958, .min_i = 0.410802460984564632440, .max_r = -0.637784130994323406050, .max_i = 0.412319571985918953416
-  };
 
 //
   InitWindow(WINDOW_SIZE_X, WINDOW_SIZE_Y, "mandelbrot fixed point test");
@@ -537,7 +532,7 @@ int main() {
   Texture tex = LoadTextureFromImage(img);
   UnloadImage(img);
 
-  SetTargetFPS(60);
+  SetTargetFPS(0);
 
   while(!WindowShouldClose()) {
     switch(GetKeyPressed()) {
@@ -568,7 +563,8 @@ int main() {
         continue;
         break;
     }
-    printf(".min_r = %.21f, .min_i = %.21f, .max_r = %.21f, .max_i = %.21f\n", cam.min_r, cam.min_i, cam.max_r, cam.max_i);
+    //printf(".min_r = %.21f, .min_i = %.21f, .max_r = %.21f, .max_i = %.21f\n", cam.min_r, cam.min_i, cam.max_r, cam.max_i);
+    printf("(struct camera) {%.21f, %.21f, %.21f, %.21f}\n", cam.min_r, cam.min_i, cam.max_r, cam.max_i);
 
 
     clock_t begin, end;
@@ -586,7 +582,7 @@ int main() {
     printf("Unoptimized: %u iterations, %f seconds\n", unoptimized_iters, time_unoptimized);
 
     begin = clock();
-    unsigned int optimized_iters = mandelbrot_bordertrace(&cam, pixels_optimized);
+    unsigned int optimized_iters = mandelbrot_bordertrace(&cam, pixels_unoptimized);
     end = clock();
 
     time_optimized = (double)(end - begin) / CLOCKS_PER_SEC;

recon/mandelbrot_tests/c/makefile

@@ -1,7 +1,6 @@
 .default: make
 make:
-	gcc main.c -O0 -ggdb3 -o mandelbrot -lraylib -lm -Wall -ggdb
+	gcc main.c -Ofast -o mandelbrot -lraylib -lm -Wall -ggdb
-	#gcc main.c -Ofast -o mandelbrot -lraylib -lm -Wall -ggdb
 
 clean:
 	rm -f mandelbrot