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Update for WebGPU latest

omar 2026-04-23 19:16:42 +02:00
parent 5b9f07600e
commit 87e01f4fb2
1 changed files with 33 additions and 43 deletions
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76
Image-Loading-and-Displaying-Examples.md

@ -1139,54 +1139,31 @@ bool LoadTextureFromMemory(const void* data, size_t data_size, WGPUDevice device
int image_width = 0;
int image_height = 0;
// Ask stbi to output 4 channels since WebGPU doesn't have 3-channels texture format
const int output_channels = 4;
void* const image_data = stbi_load_from_memory((const unsigned char *)data, (int)data_size, &image_width, &image_height, NULL, output_channels);
const int image_channels = 4;
void* const image_data = stbi_load_from_memory((const unsigned char *)data, (int)data_size, &image_width, &image_height, NULL, image_channels);
if (image_data == NULL)
return false;
// Create a WebGPU texture
WGPUTextureDescriptor texture_desc;
texture_desc.nextInChain = NULL;
texture_desc.label = NULL;
texture_desc.usage = WGPUTextureUsage_CopyDst | WGPUTextureUsage_TextureBinding;
texture_desc.dimension = WGPUTextureDimension_2D;
texture_desc.size.width = (uint32_t)image_width;
texture_desc.size.height = (uint32_t)image_height;
texture_desc.size.depthOrArrayLayers = 1;
texture_desc.format = WGPUTextureFormat_RGBA8Unorm;
texture_desc.mipLevelCount = 1;
texture_desc.sampleCount = 1;
texture_desc.viewFormatCount = 0;
texture_desc.viewFormats = NULL;
WGPUTexture image_texture = wgpuDeviceCreateTexture(device, &texture_desc);
// Write loaded data to texture
WGPUImageCopyTexture dest;
dest.nextInChain = NULL;
dest.texture = image_texture;
dest.mipLevel = 0;
dest.origin.x = 0;
dest.origin.y = 0;
dest.origin.z = 0;
dest.aspect = WGPUTextureAspect_All;
WGPUTextureDataLayout src;
src.nextInChain = NULL;
src.offset = 0;
src.bytesPerRow = (uint32_t)(output_channels * image_width);
src.rowsPerImage = (uint32_t)image_height;
const size_t bytes = src.bytesPerRow * src.rowsPerImage;
WGPUExtent3D write_size;
write_size.width = (uint32_t)image_width;
write_size.height = (uint32_t)image_height;
write_size.depthOrArrayLayers = 1;
wgpuQueueWriteTexture(queue, &dest, image_data, bytes, &src, &write_size);
WGPUTextureDescriptor tex_desc;
tex_desc.nextInChain = NULL;
tex_desc.label = { "", WGPU_STRLEN };
tex_desc.usage = WGPUTextureUsage_CopyDst | WGPUTextureUsage_TextureBinding;
tex_desc.dimension = WGPUTextureDimension_2D;
tex_desc.size.width = (uint32_t)image_width;
tex_desc.size.height = (uint32_t)image_height;
tex_desc.size.depthOrArrayLayers = 1;
tex_desc.format = WGPUTextureFormat_RGBA8Unorm;
tex_desc.mipLevelCount = 1;
tex_desc.sampleCount = 1;
tex_desc.viewFormatCount = 0;
tex_desc.viewFormats = NULL;
WGPUTexture image_texture = wgpuDeviceCreateTexture(device, &tex_desc);
// Create a WebGPU texture view
WGPUTextureViewDescriptor view_desc;
view_desc.nextInChain = NULL;
view_desc.label = NULL;
view_desc.label = { "", WGPU_STRLEN };
view_desc.format = WGPUTextureFormat_RGBA8Unorm;
view_desc.dimension = WGPUTextureViewDimension_2D;
view_desc.baseMipLevel = 0;
@ -1194,12 +1171,25 @@ bool LoadTextureFromMemory(const void* data, size_t data_size, WGPUDevice device
view_desc.baseArrayLayer = 0;
view_desc.arrayLayerCount = 1;
view_desc.aspect = WGPUTextureAspect_All;
WGPUTextureView view = wgpuTextureCreateView(image_texture, &view_desc);
// Write loaded data to texture
WGPUTexelCopyTextureInfo dst_view = {};
dst_view.texture = image_texture;
dst_view.mipLevel = 0;
dst_view.origin = { 0, 0, 0 };
dst_view.aspect = WGPUTextureAspect_All;
WGPUTexelCopyBufferLayout layout = {};
layout.offset = 0;
layout.bytesPerRow = image_width * image_channels;
layout.rowsPerImage = image_height;
WGPUExtent3D write_size = { (uint32_t)image_width, (uint32_t)image_height, 1 };
wgpuQueueWriteTexture(queue, &dst_view, image_data, layout.bytesPerRow * layout.rowsPerImage, &layout, &write_size);
*out_texture = image_texture;
*out_texture_view = wgpuTextureCreateView(image_texture, &view_desc);
*out_texture_view = view;
*out_width = image_width;
*out_height = image_height;
*out_height = image_height;
return true;
}