luboslenco
422 lines
14 KiB
C
422 lines
14 KiB
C
#include <string.h>
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#include <emscripten.h>
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#include <emscripten/html5.h>
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#include <emscripten/html5_webgpu.h>
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#include <webgpu/webgpu.h>
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#include <iron_gpu.h>
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#include <iron_math.h>
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#include <iron_system.h>
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#include <stdlib.h>
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#include <assert.h>
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int renderTargetWidth;
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int renderTargetHeight;
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int newRenderTargetWidth;
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int newRenderTargetHeight;
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WGPUDevice device;
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WGPUQueue queue;
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WGPUSwapChain swapChain;
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void iron_gpu_destroy() {}
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void iron_gpu_init(int depthBufferBits, bool vsync) {
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newRenderTargetWidth = renderTargetWidth = iron_width();
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newRenderTargetHeight = renderTargetHeight = iron_height();
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device = emscripten_webgpu_get_device();
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queue = wgpuDeviceGetQueue(device);
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WGPUSurfaceDescriptorFromCanvasHTMLSelector canvasDesc;
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memset(&canvasDesc, 0, sizeof(canvasDesc));
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canvasDesc.selector = "canvas";
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WGPUSurfaceDescriptor surfDesc;
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memset(&surfDesc, 0, sizeof(surfDesc));
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surfDesc.nextInChain = &canvasDesc;
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WGPUInstance instance = 0;
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WGPUSurface surface = wgpuInstanceCreateSurface(instance, &surfDesc);
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WGPUSwapChainDescriptor scDesc;
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memset(&scDesc, 0, sizeof(scDesc));
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scDesc.usage = WGPUTextureUsage_RenderAttachment;
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scDesc.format = WGPUTextureFormat_BGRA8Unorm;
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scDesc.width = iron_width();
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scDesc.height = iron_height();
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scDesc.presentMode = WGPUPresentMode_Fifo;
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swapChain = wgpuDeviceCreateSwapChain(device, surface, &scDesc);
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}
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void iron_gpu_begin(iron_gpu_texture_t *renderTarget) {}
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void iron_gpu_end() {}
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bool iron_gpu_raytrace_supported() {
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return false;
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}
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extern WGPUDevice device;
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iron_gpu_buffer_t *iron_gpu_internal_current_vertex_buffer = NULL;
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void iron_gpu_vertex_buffer_init(iron_gpu_buffer_t *buffer, int count, iron_gpu_vertex_structure_t *structure, bool gpuMemory) {
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buffer->count = count;
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buffer->impl.count = count;
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buffer->impl.stride = 0;
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for (int i = 0; i < structure->size; ++i) {
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buffer->impl.stride += iron_gpu_vertex_data_size(structure->elements[i].data);
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}
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}
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void iron_gpu_vertex_buffer_destroy(iron_gpu_buffer_t *buffer) {
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}
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float *iron_gpu_vertex_buffer_lock(iron_gpu_buffer_t *buffer) {
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WGPUBufferDescriptor bDesc;
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memset(&bDesc, 0, sizeof(bDesc));
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bDesc.size = buffer->impl.count * buffer->impl.stride * sizeof(float);
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bDesc.usage = WGPUBufferUsage_Vertex | WGPUBufferUsage_CopyDst;
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bDesc.mappedAtCreation = true;
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buffer->impl.buffer = wgpuDeviceCreateBuffer(device, &bDesc);
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return wgpuBufferGetMappedRange(buffer->impl.buffer, 0, bDesc.size);
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}
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void iron_gpu_vertex_buffer_unlock(iron_gpu_buffer_t *buffer) {
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wgpuBufferUnmap(buffer->impl.buffer);
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}
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int iron_gpu_vertex_buffer_count(iron_gpu_buffer_t *buffer) {
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return buffer->impl.count;
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}
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int iron_gpu_vertex_buffer_stride(iron_gpu_buffer_t *buffer) {
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return buffer->impl.stride;
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}
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bool iron_gpu_transpose_mat = false;
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void iron_gpu_constant_buffer_init(iron_gpu_buffer_t *buffer, int size) {
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}
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void iron_gpu_constant_buffer_destroy(iron_gpu_buffer_t *buffer) {}
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void iron_gpu_constant_buffer_lock(iron_gpu_buffer_t *buffer, int start, int count) {}
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void iron_gpu_constant_buffer_unlock(iron_gpu_buffer_t *buffer) {
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}
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int iron_gpu_constant_buffer_size(iron_gpu_buffer_t *buffer) {
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return 0;
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}
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iron_gpu_buffer_t *iron_gpu_internal_current_index_buffer = NULL;
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void iron_gpu_index_buffer_init(iron_gpu_buffer_t *buffer, int count, bool gpuMemory) {
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buffer->impl.count = count;
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}
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void iron_gpu_index_buffer_destroy(iron_gpu_buffer_t *buffer) {
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}
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static int iron_gpu_internal_index_buffer_stride(iron_gpu_buffer_t *buffer) {
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return 4;
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}
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void *iron_gpu_index_buffer_lock(iron_gpu_buffer_t *buffer) {
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int start = 0;
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int count = iron_gpu_index_buffer_count(buffer);
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WGPUBufferDescriptor bDesc;
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memset(&bDesc, 0, sizeof(bDesc));
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bDesc.size = count * iron_gpu_internal_index_buffer_stride(buffer);
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bDesc.usage = WGPUBufferUsage_Index | WGPUBufferUsage_CopyDst;
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bDesc.mappedAtCreation = true;
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buffer->impl.buffer = wgpuDeviceCreateBuffer(device, &bDesc);
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return wgpuBufferGetMappedRange(buffer->impl.buffer, start * iron_gpu_internal_index_buffer_stride(buffer), bDesc.size);
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}
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void iron_gpu_index_buffer_unlock(iron_gpu_buffer_t *buffer) {
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wgpuBufferUnmap(buffer->impl.buffer);
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}
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void iron_gpu_internal_index_buffer_set(iron_gpu_buffer_t *buffer) {
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}
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int iron_gpu_index_buffer_count(iron_gpu_buffer_t *buffer) {
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return buffer->impl.count;
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}
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void iron_gpu_texture_init(iron_gpu_texture_t *texture, int width, int height, iron_image_format_t format) {
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// WGPUExtent3D size = {};
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// size.width = iron_width();
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// size.height = iron_height();
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// size.depth = 1;
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// WGPUTextureDescriptor tDesc = {};
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// tDesc.sampleCount = 1;
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// tDesc.format = WGPUTextureFormat_BGRA8Unorm;
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// tDesc.usage = WGPUTextureUsage_OutputAttachment;
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// tDesc.size = size;
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// tDesc.dimension = WGPUTextureDimension_2D;
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// tDesc.mipLevelCount = 1;
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// tDesc.arrayLayerCount = 1;
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// WGPUTexture texture = wgpuDeviceCreateTexture(device, &tDesc);
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// WGPUTextureViewDescriptor tvDesc = {};
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// tvDesc.format = WGPUTextureFormat_BGRA8Unorm;
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// tvDesc.dimension = WGPUTextureViewDimension_2D;
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// WGPUTextureView textureView = wgpuTextureCreateView(texture, &tvDesc);
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texture->uploaded = true;
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texture->format = format;
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texture->data = NULL;
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}
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void iron_gpu_texture_init_from_bytes(iron_gpu_texture_t *texture, void *data, int width, int height, iron_image_format_t format) {}
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void iron_gpu_texture_init_from_encoded_data(iron_gpu_texture_t *texture, void *data, int size, const char *format, bool readable) {}
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void iron_gpu_texture_init_from_data(iron_gpu_texture_t *texture, void *data, int width, int height, int format, bool readable) {}
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void iron_gpu_texture_destroy(iron_gpu_texture_t *texture) {}
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int iron_gpu_texture_stride(iron_gpu_texture_t *texture) {
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return 32;
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}
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void iron_gpu_texture_generate_mipmaps(iron_gpu_texture_t *texture, int levels) {}
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void iron_gpu_texture_set_mipmap(iron_gpu_texture_t *texture, iron_gpu_texture_t *mipmap, int level) {}
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void iron_gpu_render_target_init(iron_gpu_texture_t *target, int width, int height, iron_image_format_t format, int depthBufferBits) {
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target->width = target->width = width;
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target->height = target->height = height;
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target->state = IRON_INTERNAL_RENDER_TARGET_STATE_RENDER_TARGET;
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target->data = NULL;
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target->uploaded = true;
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}
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void iron_gpu_render_target_init_framebuffer(iron_gpu_texture_t *target, int width, int height, iron_image_format_t format, int depthBufferBits) {}
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void iron_gpu_render_target_set_depth_from(iron_gpu_texture_t *renderTarget, iron_gpu_texture_t *source) {}
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extern WGPUDevice device;
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void iron_gpu_pipeline_init(iron_gpu_pipeline_t *pipe) {
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gpu_internal_pipeline_init(pipe);
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}
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iron_gpu_constant_location_t iron_gpu_pipeline_get_constant_location(iron_gpu_pipeline_t *pipe, const char* name) {
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iron_gpu_constant_location_t location;
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return location;
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}
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iron_gpu_texture_unit_t iron_gpu_pipeline_get_texture_unit(iron_gpu_pipeline_t *pipe, const char *name) {
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iron_gpu_texture_unit_t unit;
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return unit;
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}
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void iron_gpu_pipeline_compile(iron_gpu_pipeline_t *pipe) {
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WGPUColorTargetState csDesc;
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memset(&csDesc, 0, sizeof(csDesc));
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csDesc.format = WGPUTextureFormat_BGRA8Unorm;
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csDesc.writeMask = WGPUColorWriteMask_All;
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WGPUBlendState blend;
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memset(&blend, 0, sizeof(blend));
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blend.color.operation = WGPUBlendOperation_Add;
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blend.color.srcFactor = WGPUBlendFactor_One;
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blend.color.dstFactor = WGPUBlendFactor_Zero;
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blend.alpha.operation = WGPUBlendOperation_Add;
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blend.alpha.srcFactor = WGPUBlendFactor_One;
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blend.alpha.dstFactor = WGPUBlendFactor_Zero;
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csDesc.blend = &blend;
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WGPUPipelineLayoutDescriptor plDesc;
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memset(&plDesc, 0, sizeof(plDesc));
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plDesc.bindGroupLayoutCount = 0;
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plDesc.bindGroupLayouts = NULL;
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WGPUVertexAttribute vaDesc[8];
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memset(&vaDesc[0], 0, sizeof(vaDesc[0]) * 8);
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uint64_t offset = 0;
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for (int i = 0; i < pipe->input_layout->size; ++i) {
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vaDesc[i].shaderLocation = i;
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vaDesc[i].offset = offset;
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offset += iron_gpu_vertex_data_size(pipe->input_layout->elements[i].data);
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switch (pipe->input_layout->elements[i].data) {
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case IRON_GPU_VERTEX_DATA_F32_1X:
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vaDesc[i].format = WGPUVertexFormat_Float32;
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break;
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case IRON_GPU_VERTEX_DATA_F32_2X:
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vaDesc[i].format = WGPUVertexFormat_Float32x2;
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break;
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case IRON_GPU_VERTEX_DATA_F32_3X:
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vaDesc[i].format = WGPUVertexFormat_Float32x3;
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break;
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case IRON_GPU_VERTEX_DATA_F32_4X:
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vaDesc[i].format = WGPUVertexFormat_Float32x4;
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break;
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case IRON_GPU_VERTEX_DATA_I16_2X_NORM:
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vaDesc[i].format = WGPUVertexFormat_Snorm16x2;
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break;
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case IRON_GPU_VERTEX_DATA_I16_4X_NORM:
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vaDesc[i].format = WGPUVertexFormat_Snorm16x4;
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break;
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}
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}
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WGPUVertexBufferLayout vbDesc;
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memset(&vbDesc, 0, sizeof(vbDesc));
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vbDesc.arrayStride = offset;
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vbDesc.attributeCount = pipe->input_layout->size;
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vbDesc.attributes = &vaDesc[0];
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WGPUVertexState vsDest;
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memset(&vsDest, 0, sizeof(vsDest));
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vsDest.module = pipe->vertex_shader->impl.module;
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vsDest.entryPoint = "main";
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vsDest.bufferCount = 1;
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vsDest.buffers = &vbDesc;
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WGPUFragmentState fragmentDest;
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memset(&fragmentDest, 0, sizeof(fragmentDest));
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fragmentDest.module = pipe->fragment_shader->impl.module;
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fragmentDest.entryPoint = "main";
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fragmentDest.targetCount = 1;
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fragmentDest.targets = &csDesc;
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WGPUPrimitiveState rsDesc;
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memset(&rsDesc, 0, sizeof(rsDesc));
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rsDesc.topology = WGPUPrimitiveTopology_TriangleList;
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rsDesc.stripIndexFormat = WGPUIndexFormat_Uint32;
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rsDesc.frontFace = WGPUFrontFace_CW;
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rsDesc.cullMode = WGPUCullMode_None;
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WGPUMultisampleState multisample;
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memset(&multisample, 0, sizeof(multisample));
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multisample.count = 1;
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multisample.mask = 0xffffffff;
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multisample.alphaToCoverageEnabled = false;
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WGPURenderPipelineDescriptor rpDesc;
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memset(&rpDesc, 0, sizeof(rpDesc));
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rpDesc.layout = wgpuDeviceCreatePipelineLayout(device, &plDesc);
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rpDesc.fragment = &fragmentDest;
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rpDesc.vertex = vsDest;
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rpDesc.multisample = multisample;
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rpDesc.primitive = rsDesc;
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pipe->impl.pipeline = wgpuDeviceCreateRenderPipeline(device, &rpDesc);
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}
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void iron_gpu_shader_init(iron_gpu_shader_t *shader, const void *source, size_t length, iron_gpu_shader_type_t type) {
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WGPUShaderModuleSPIRVDescriptor smSpirvDesc;
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memset(&smSpirvDesc, 0, sizeof(smSpirvDesc));
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smSpirvDesc.chain.sType = WGPUSType_ShaderModuleSPIRVDescriptor;
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smSpirvDesc.codeSize = length / 4;
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smSpirvDesc.code = source;
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WGPUShaderModuleDescriptor smDesc;
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memset(&smDesc, 0, sizeof(smDesc));
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smDesc.nextInChain = &smSpirvDesc;
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shader->impl.module = wgpuDeviceCreateShaderModule(device, &smDesc);
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}
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void iron_gpu_shader_destroy(iron_gpu_shader_t *shader) {}
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void iron_gpu_command_list_init(iron_gpu_command_list_t *list) {}
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void iron_gpu_command_list_destroy(iron_gpu_command_list_t *list) {}
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void iron_gpu_command_list_begin(iron_gpu_command_list_t *list) {
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WGPUCommandEncoderDescriptor ceDesc;
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memset(&ceDesc, 0, sizeof(ceDesc));
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list->impl.encoder = wgpuDeviceCreateCommandEncoder(device, &ceDesc);
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WGPURenderPassColorAttachment attachment;
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memset(&attachment, 0, sizeof(attachment));
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attachment.view = wgpuSwapChainGetCurrentTextureView(swapChain);;
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attachment.loadOp = WGPULoadOp_Clear;
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attachment.storeOp = WGPUStoreOp_Store;
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WGPUColor color = {0, 0, 0, 1};
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attachment.clearValue = color;
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WGPURenderPassDescriptor passDesc;
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memset(&passDesc, 0, sizeof(passDesc));
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passDesc.colorAttachmentCount = 1;
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passDesc.colorAttachments = &attachment;
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list->impl.pass = wgpuCommandEncoderBeginRenderPass(list->impl.encoder, &passDesc);
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}
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void iron_gpu_command_list_end(iron_gpu_command_list_t *list) {
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wgpuRenderPassEncoderEnd(list->impl.pass);
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WGPUCommandBufferDescriptor cbDesc;
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memset(&cbDesc, 0, sizeof(cbDesc));
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WGPUCommandBuffer commands = wgpuCommandEncoderFinish(list->impl.encoder, &cbDesc);
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wgpuQueueSubmit(queue, 1, &commands);
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}
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void iron_gpu_command_list_render_target_to_framebuffer_barrier(iron_gpu_command_list_t *list, struct iron_gpu_texture *renderTarget) {}
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void iron_gpu_command_list_framebuffer_to_render_target_barrier(iron_gpu_command_list_t *list, struct iron_gpu_texture *renderTarget) {}
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void iron_gpu_command_list_texture_to_render_target_barrier(iron_gpu_command_list_t *list, struct iron_gpu_texture *renderTarget) {}
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void iron_gpu_command_list_render_target_to_texture_barrier(iron_gpu_command_list_t *list, struct iron_gpu_texture *renderTarget) {}
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void iron_gpu_command_list_draw(iron_gpu_command_list_t *list) {
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wgpuRenderPassEncoderDrawIndexed(list->impl.pass, list->impl.indexCount, 1, 0, 0, 0);
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}
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void iron_gpu_command_list_viewport(iron_gpu_command_list_t *list, int x, int y, int width, int height) {
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}
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void iron_gpu_command_list_scissor(iron_gpu_command_list_t *list, int x, int y, int width, int height) {
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}
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void iron_gpu_command_list_disable_scissor(iron_gpu_command_list_t *list) {}
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void iron_gpu_command_list_set_pipeline(iron_gpu_command_list_t *list, struct iron_gpu_pipeline *pipeline) {
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wgpuRenderPassEncoderSetPipeline(list->impl.pass, pipeline->impl.pipeline);
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}
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void iron_gpu_command_list_set_pipeline_layout(iron_gpu_command_list_t *list) {}
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void iron_gpu_command_list_set_vertex_buffer(iron_gpu_command_list_t *list, struct iron_gpu_buffer *buffer) {
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uint64_t size = (iron_gpu_vertex_buffer_count(buffer)) * iron_gpu_vertex_buffer_stride(buffer);
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wgpuRenderPassEncoderSetVertexBuffer(list->impl.pass, 0, buffer->impl.buffer, 0, size);
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}
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void iron_gpu_command_list_set_index_buffer(iron_gpu_command_list_t *list, struct iron_gpu_buffer *buffer) {
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list->impl.indexCount = iron_gpu_index_buffer_count(buffer);
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uint64_t size = iron_gpu_index_buffer_count(buffer) * sizeof(int);
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wgpuRenderPassEncoderSetIndexBuffer(list->impl.pass, buffer->impl.buffer, WGPUIndexFormat_Uint32, 0, size);
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}
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void iron_gpu_command_list_set_render_targets(iron_gpu_command_list_t *list, struct iron_gpu_texture **targets, int count, unsigned flags, unsigned color, float depth) {
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}
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void iron_gpu_command_list_upload_index_buffer(iron_gpu_command_list_t *list, struct iron_gpu_buffer *buffer) {}
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void iron_gpu_command_list_upload_vertex_buffer(iron_gpu_command_list_t *list, struct iron_gpu_buffer *buffer) {}
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void iron_gpu_command_list_upload_texture(iron_gpu_command_list_t *list, struct iron_gpu_texture *texture) {}
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void iron_gpu_command_list_get_render_target_pixels(iron_gpu_command_list_t *list, iron_gpu_texture_t *render_target, uint8_t *data) {}
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void iron_gpu_command_list_wait(iron_gpu_command_list_t *list) {
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}
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void iron_gpu_command_list_set_constant_buffer(iron_gpu_command_list_t *list, struct iron_gpu_buffer *buffer, int offset, size_t size) {
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}
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void iron_gpu_command_list_set_texture(iron_gpu_command_list_t *list, iron_gpu_texture_unit_t *unit, iron_gpu_texture_t *texture) {
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}
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void iron_gpu_set_texture_depth(iron_gpu_command_list_t *list, iron_gpu_texture_unit_t *unit, iron_gpu_texture_t *renderTarget) {}
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