Graphics programming • Re: Issue with EGL and OpenGL ES Compute Shader: Black Pixel Artifacts

Code:

int main(){    EglDmaBufTest e;    e.init();    e.makeBuffers();    struct dma_buf_sync dma_sync {};    int ret;    {        const char *filePath = "/home/pi/placeholder.raw";        size_t width = 4064;        size_t height = 2160;        size_t bytesPerPixel = 2;        size_t expectedSize = width * height * bytesPerPixel;        // Open the file        FILE *file = fopen(filePath, "rb");        if (file == NULL) {            perror("Failed to open the RAW file");            return 1;        }        dma_sync.flags = DMA_BUF_SYNC_START | DMA_BUF_SYNC_WRITE;        ret = ::ioctl(e.buffers[0].fd, DMA_BUF_IOCTL_SYNC, &dma_sync);        // Read the file content into the image buffer        size_t bytesRead = fread(e.buffers[0].data, 1, expectedSize, file);        if (bytesRead != expectedSize) {            fprintf(stderr, "Error: Expected %zu bytes, but read %zu bytes\n", expectedSize, bytesRead);            fclose(file);            return 1;        }        dma_sync.flags = DMA_BUF_SYNC_END | DMA_BUF_SYNC_WRITE;        ret = ::ioctl(e.buffers[0].fd, DMA_BUF_IOCTL_SYNC, &dma_sync);        // Close the file        fclose(file);    }    e.compute();    {        dma_sync.flags = DMA_BUF_SYNC_START | DMA_BUF_SYNC_READ;        ret = ::ioctl(e.buffers[1].fd, DMA_BUF_IOCTL_SYNC, &dma_sync);        mmap_to_file(e.buffers[1].data, e.buffers[1].size, "output_image.bin");        dma_sync.flags = DMA_BUF_SYNC_END | DMA_BUF_SYNC_READ;        ret = ::ioctl(e.buffers[1].fd, DMA_BUF_IOCTL_SYNC, &dma_sync);    }    return 0;}