From 7e9e2150619c05f9e8a74432e596b11f373518b9 Mon Sep 17 00:00:00 2001
From: Brett Weiland <brett_weiland@gmail.com>
Date: Thu, 9 May 2024 19:14:29 -0500
Subject: pipeline up

---
 build/indigo_worlds | Bin 0 -> 1030064 bytes
 build/kernel.o      | Bin 0 -> 17216 bytes
 build/main.o        | Bin 32680 -> 32792 bytes
 kernel.cu           |  18 +++++++++---------
 main.cu             |  51 ++++++++++++++++++++++++++++++++++++---------------
 5 files changed, 45 insertions(+), 24 deletions(-)
 create mode 100755 build/indigo_worlds
 create mode 100644 build/kernel.o

diff --git a/build/indigo_worlds b/build/indigo_worlds
new file mode 100755
index 0000000..d99fd92
Binary files /dev/null and b/build/indigo_worlds differ
diff --git a/build/kernel.o b/build/kernel.o
new file mode 100644
index 0000000..549a102
Binary files /dev/null and b/build/kernel.o differ
diff --git a/build/main.o b/build/main.o
index 7add5ec..1102ea1 100644
Binary files a/build/main.o and b/build/main.o differ
diff --git a/kernel.cu b/kernel.cu
index c00056a..6bed13c 100644
--- a/kernel.cu
+++ b/kernel.cu
@@ -5,14 +5,14 @@
 
 __global__ void test_image(uint8_t *image) {
   int2 unnormalized_coordinates = make_int2(blockDim.x, blockDim.y) * make_int2(blockIdx.x, blockIdx.y) + make_int2(threadIdx.x, threadIdx.y);
-  int2 img_res = make_int2(blockDim.x, blockDim.y) * make_int2(gridDim.x, gridDim.y);
-  size_t img_index = (unnormalized_coordinates.y * img_res.y) + unnormalized_coordinates.x;
-  //uint8_t pixel_val = (img_index / (img_res.x * img_res.y)) * 255;
-  uint8_t pixel_val = 0xff;
-  //if(img_index == 1) printf("%i\n", img_index);
-  print(img_index)
-  image[img_index] = 0xff;
-  image[img_index+1] = pixel_val;
-  image[img_index+2] = pixel_val;
+  int2 img_res = make_int2(blockDim.x, blockDim.y) * make_int2(gridDim.x, gridDim.y); //can move if needed
+  size_t img_index = ((unnormalized_coordinates.y * img_res.y) + unnormalized_coordinates.x) * 4;
+
+  //vec3 col = 0.5 + 0.5*cos(iTime+uv.xyx+vec3(0,2,4));
+
+
+  image[img_index] = 0x00;
+  image[img_index+1] = 0x00;
+  image[img_index+2] = 0xff;
   image[img_index+3] = 0xff;
 }
diff --git a/main.cu b/main.cu
index 2b1b180..4225b09 100644
--- a/main.cu
+++ b/main.cu
@@ -8,32 +8,53 @@
 __global__ void test_image(uint8_t *image);
 
 int main() {
-  const int size_x = 100;
-  const int size_y = 100;
+  //bluuuuugh i'll figure out occupancy later, this res are easy
+  //calculated manually for gtx1060 with 20 SM, 1024 threads/SM
+  const int res_x = 32 * 20;
+  const int res_y = 32 * 20;
+  const dim3 blockCount(20, 20);
+  const dim3 threadCount(32, 32);
+
   uint8_t *image_d;
-  Image image = GenImageColor(size_x, size_y, BLUE);
+  Color texture_data[res_x * res_y];
+  
+
+  //see if GPU is connected (my egpu is finicky)
+  {
+    int temp_device;
+    cudaError_t err;
+    if((err = cudaGetDevice(&temp_device)) != cudaSuccess) {
+      printf("failed to get device!\nError: %s\n", cudaGetErrorString(err));
+      return(1);
+    }
+  }
+  
   SetTraceLogLevel(LOG_ERROR);
+  InitWindow(res_x, res_y, "cuda teseteroni");
+  
+  //TODO could probably cut out
+  Image image = GenImageColor(res_x, res_y, BLUE);
+  Texture tex = LoadTextureFromImage(image);
+
+
 
-  InitWindow(size_x, size_y, "cuda teseteroni");
 
-  cudaMalloc((void **)&image_d, 100 * 100 * 4);
-  test_image<<<1, dim3(3,3)>>>(image_d); 
-  cudaDeviceSynchronize();
-  //for(;;);
   
   //if(!IsWindowFullscreen()) ToggleFullscreen();
 
   while(!WindowShouldClose()) {
-    cudaMemcpy(image.data, (void **)image_d, 100 * 100 * 4, cudaMemcpyDeviceToHost);
-    //memset(image.data, (int32_t)0x0000ff, 100 * 100 * 4);
+    //cuda stuff
+    cudaMalloc((void **)&image_d, res_x * res_y * sizeof(Color));
+    test_image<<<blockCount, threadCount>>>(image_d); 
+    cudaDeviceSynchronize();
+    cudaMemcpy(texture_data, (void **)image_d, res_x * res_y * sizeof(Color), cudaMemcpyDeviceToHost);
+
     BeginDrawing();
-    DrawTexture(LoadTextureFromImage(image), 0, 0, WHITE);
+    UpdateTexture(tex, texture_data);
+    DrawTexture(tex, 0, 0, WHITE);
+    DrawFPS(0, 0);
     EndDrawing();
   }
-  
-  
-
-
 
   return 0;
 }
-- 
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