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webgpu progress

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This commit is contained in:
luboslenco
2026-01-05 21:13:49 +01:00
parent 1396870aad
commit 766d6902bf
14 changed files with 453 additions and 459 deletions
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base/sources/backends/webgpu_gpu.c
+20 -17
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@@ -102,6 +102,10 @@ static WGPUBlendFactor convert_blend_factor(gpu_blend_t factor) {
}
}
static int bytes_per_row_align(int bpr) {
return (bpr + 255) & ~255;
}
static void create_descriptors(void) {
WGPUBindGroupLayoutEntry bindings[18];
memset(bindings, 0, sizeof(bindings));
@@ -156,7 +160,7 @@ static void create_descriptors(void) {
wgpuBufferUnmap(dummy_upload);
WGPUCommandEncoder dummy_encoder = wgpuDeviceCreateCommandEncoder(device, NULL);
WGPUTexelCopyBufferInfo src = {.layout = {.bytesPerRow = 4, .rowsPerImage = 1}, .buffer = dummy_upload};
WGPUTexelCopyBufferInfo src = {.layout = {.bytesPerRow = bytes_per_row_align(4), .rowsPerImage = 1}, .buffer = dummy_upload};
WGPUTexelCopyTextureInfo dst = {.texture = dummy_texture};
WGPUExtent3D extent = {1, 1, 1};
wgpuCommandEncoderCopyBufferToTexture(dummy_encoder, &src, &dst, &extent);
@@ -442,7 +446,7 @@ void gpu_get_render_target_pixels(gpu_texture_t *render_target, uint8_t *data) {
WGPUCommandEncoder encoder = wgpuDeviceCreateCommandEncoder(device, NULL);
WGPUTexelCopyTextureInfo src = {.texture = render_target->impl.texture};
WGPUTexelCopyBufferInfo dst = {.layout = {.bytesPerRow = render_target->width * gpu_texture_format_size(render_target->format),
WGPUTexelCopyBufferInfo dst = {.layout = {.bytesPerRow = bytes_per_row_align(render_target->width * gpu_texture_format_size(render_target->format)),
.rowsPerImage = render_target->height},
.buffer = readback_buffer};
WGPUExtent3D extent = {(uint32_t)render_target->width, (uint32_t)render_target->height, 1};
@@ -488,7 +492,7 @@ static WGPUBindGroup get_descriptor_set(WGPUBuffer buffer) {
void gpu_set_constant_buffer(gpu_buffer_t *buffer, int offset, size_t size) {
WGPUBindGroup bind_group = get_descriptor_set(buffer->impl.buf);
// uint32_t offsets[1] = {(uint32_t)offset};
uint32_t offsets[1] = {(uint32_t)0};
uint32_t offsets[1] = {(uint32_t)0};
wgpuRenderPassEncoderSetBindGroup(render_pass_encoder, 0, bind_group, 1, offsets);
wgpuBindGroupRelease(bind_group);
}
@@ -643,7 +647,7 @@ void gpu_texture_init_from_bytes(gpu_texture_t *texture, void *data, int width,
upload_buffer_size = new_upload_buffer_size;
WGPUBufferDescriptor upload_desc = {
.size = upload_buffer_size,
.usage = WGPUBufferUsage_CopySrc,
.usage = WGPUBufferUsage_CopySrc | WGPUBufferUsage_CopyDst,
.mappedAtCreation = false,
};
upload_buffer = wgpuDeviceCreateBuffer(device, &upload_desc);
@@ -662,7 +666,7 @@ void gpu_texture_init_from_bytes(gpu_texture_t *texture, void *data, int width,
texture->impl.texture = wgpuDeviceCreateTexture(device, &image_info);
WGPUCommandEncoder encoder = wgpuDeviceCreateCommandEncoder(device, NULL);
WGPUTexelCopyBufferInfo src = {.layout = {.bytesPerRow = width * bpp, .rowsPerImage = height}, .buffer = upload_buffer};
WGPUTexelCopyBufferInfo src = {.layout = {.bytesPerRow = bytes_per_row_align(width * bpp), .rowsPerImage = height}, .buffer = upload_buffer};
WGPUTexelCopyTextureInfo dst = {.texture = texture->impl.texture};
WGPUExtent3D extent = {(uint32_t)width, (uint32_t)height, 1};
wgpuCommandEncoderCopyBufferToTexture(encoder, &src, &dst, &extent);
@@ -708,15 +712,15 @@ void gpu_vertex_buffer_init(gpu_buffer_t *buffer, int count, gpu_vertex_structur
WGPUBufferDescriptor desc = {.size = buffer->count * buffer->stride, .usage = WGPUBufferUsage_Vertex, .mappedAtCreation = true};
buffer->impl.buf = wgpuDeviceCreateBuffer(device, &desc);
buffer->impl.temp = malloc(buffer->count * buffer->stride);
buffer->impl.mem = malloc(buffer->count * buffer->stride);
}
void *gpu_vertex_buffer_lock(gpu_buffer_t *buffer) {
return buffer->impl.temp;
return buffer->impl.mem;
}
void gpu_vertex_buffer_unlock(gpu_buffer_t *buffer) {
wgpuBufferUnmap2(buffer->impl.buf, buffer->impl.temp, 0, buffer->count * buffer->stride);
wgpuBufferUnmap2(buffer->impl.buf, buffer->impl.mem, 0, buffer->count * buffer->stride);
}
void gpu_index_buffer_init(gpu_buffer_t *buffer, int count) {
@@ -725,15 +729,15 @@ void gpu_index_buffer_init(gpu_buffer_t *buffer, int count) {
WGPUBufferDescriptor desc = {.size = buffer->count * buffer->stride, .usage = WGPUBufferUsage_Index, .mappedAtCreation = true};
buffer->impl.buf = wgpuDeviceCreateBuffer(device, &desc);
buffer->impl.temp = malloc(buffer->count * buffer->stride);
buffer->impl.mem = malloc(buffer->count * buffer->stride);
}
void *gpu_index_buffer_lock(gpu_buffer_t *buffer) {
return buffer->impl.temp;
return buffer->impl.mem;
}
void gpu_index_buffer_unlock(gpu_buffer_t *buffer) {
wgpuBufferUnmap2(buffer->impl.buf, buffer->impl.temp, 0, buffer->count * buffer->stride);
wgpuBufferUnmap2(buffer->impl.buf, buffer->impl.mem, 0, buffer->count * buffer->stride);
}
void gpu_constant_buffer_init(gpu_buffer_t *buffer, int size) {
@@ -743,18 +747,17 @@ void gpu_constant_buffer_init(gpu_buffer_t *buffer, int size) {
// WGPUBufferDescriptor desc = {.size = size, .usage = WGPUBufferUsage_Uniform, .mappedAtCreation = true};
WGPUBufferDescriptor desc = {.size = size, .usage = WGPUBufferUsage_Uniform, .mappedAtCreation = false};
buffer->impl.buf = wgpuDeviceCreateBuffer(device, &desc);
buffer->impl.temp = malloc(buffer->count * buffer->stride);
buffer->impl.mem = malloc(buffer->count * buffer->stride);
}
void gpu_constant_buffer_lock(gpu_buffer_t *buffer, int start, int count) {
// buffer->impl.start = start;
buffer->impl.start = 0;
buffer->impl.count = count;
buffer->data = &buffer->impl.temp[start];
// buffer->start = start;
buffer->count = count;
buffer->data = &buffer->impl.mem[start];
}
void gpu_constant_buffer_unlock(gpu_buffer_t *buffer) {
// wgpuBufferUnmap2(buffer->impl.buf, buffer->data, buffer->impl.start, buffer->impl.count);
// wgpuBufferUnmap2(buffer->impl.buf, buffer->data, buffer->start, buffer->count);
buffer->data = NULL;
}