MiMoEngine ASM: x86-64 MASM汇编+C混合架构游戏引擎
核心热路径(数学/内存/字符串/性能分析)用MASM汇编(SSE/AVX2) 外围系统(窗口/渲染/ECS/音频/UI/脚本)用C语言 含自研编辑器、VisualScript积木编程、中文渲染(glyph_atlas)
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#include "texture.h"
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#include <wincodec.h>
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#include <stdlib.h>
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#include <stdio.h>
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#pragma comment(lib, "windowscodecs.lib")
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static IWICImagingFactory* wic_factory = NULL;
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static HRESULT ensure_wic(void) {
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if (wic_factory) return S_OK;
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return CoCreateInstance(&CLSID_WICImagingFactory, NULL, CLSCTX_INPROC_SERVER,
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&IID_IWICImagingFactory, (void**)&wic_factory);
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}
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Texture* texture_create(void) {
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return (Texture*)calloc(1, sizeof(Texture));
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}
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void texture_destroy(Texture* texture) {
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if (!texture) return;
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if (texture->srv) ID3D11ShaderResourceView_Release(texture->srv);
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if (texture->texture) ID3D11Texture2D_Release(texture->texture);
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free(texture);
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}
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static Texture* create_from_wic(ID3D11Device* device, IWICBitmapDecoder* decoder) {
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IWICBitmapFrameDecode* frame = NULL;
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IWICBitmapDecoder_GetFrame(decoder, 0, &frame);
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uint32_t w, h;
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IWICBitmapFrameDecode_GetSize(frame, &w, &h);
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IWICFormatConverter* converter = NULL;
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IWICImagingFactory_CreateFormatConverter(wic_factory, &converter);
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IWICFormatConverter_Initialize(converter, (IWICBitmapSource*)frame,
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&GUID_WICPixelFormat32bppRGBA, WICBitmapDitherTypeNone, NULL, 0.0, WICBitmapPaletteTypeCustom);
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uint8_t* pixels = (uint8_t*)malloc(w * h * 4);
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IWICFormatConverter_CopyPixels(converter, NULL, w * 4, w * h * 4, pixels);
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IWICFormatConverter_Release(converter);
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IWICBitmapFrameDecode_Release(frame);
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D3D11_TEXTURE2D_DESC desc = {0};
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desc.Width = w;
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desc.Height = h;
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desc.MipLevels = 1;
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desc.ArraySize = 1;
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desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
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desc.SampleDesc.Count = 1;
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desc.Usage = D3D11_USAGE_DEFAULT;
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desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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D3D11_SUBRESOURCE_DATA init = {pixels, w * 4, 0};
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Texture* tex = texture_create();
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ID3D11Device_CreateTexture2D(device, &desc, &init, &tex->texture);
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D3D11_SHADER_RESOURCE_VIEW_DESC srvd = {0};
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srvd.Format = desc.Format;
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srvd.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
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srvd.Texture2D.MipLevels = 1;
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ID3D11Device_CreateShaderResourceView(device, (ID3D11Resource*)tex->texture, &srvd, &tex->srv);
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tex->width = w;
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tex->height = h;
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tex->mip_levels = 1;
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free(pixels);
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return tex;
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}
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Texture* texture_load_from_file(ID3D11Device* device, const char* path) {
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if (FAILED(ensure_wic())) return NULL;
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IWICBitmapDecoder* decoder = NULL;
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wchar_t wpath[512];
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MultiByteToWideChar(CP_UTF8, 0, path, -1, wpath, 512);
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HRESULT hr = IWICImagingFactory_CreateDecoderFromFilename(wic_factory, wpath, NULL,
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GENERIC_READ, WICDecodeMetadataCacheOnLoad, &decoder);
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if (FAILED(hr)) return NULL;
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Texture* tex = create_from_wic(device, decoder);
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IWICBitmapDecoder_Release(decoder);
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return tex;
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}
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Texture* texture_load_from_memory(ID3D11Device* device, const uint8_t* data, uint32_t size) {
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if (FAILED(ensure_wic())) return NULL;
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IWICStream* stream = NULL;
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IWICImagingFactory_CreateStream(wic_factory, &stream);
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IWICStream_InitializeFromMemory(stream, (BYTE*)data, size);
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IWICBitmapDecoder* decoder = NULL;
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IWICImagingFactory_CreateDecoderFromStream(wic_factory, (IStream*)stream, NULL,
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WICDecodeMetadataCacheOnLoad, &decoder);
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IWICStream_Release(stream);
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if (!decoder) return NULL;
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Texture* tex = create_from_wic(device, decoder);
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IWICBitmapDecoder_Release(decoder);
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return tex;
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}
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Texture* texture_create_solid(ID3D11Device* device, uint32_t w, uint32_t h,
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uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
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uint8_t* pixels = (uint8_t*)malloc(w * h * 4);
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for (uint32_t i = 0; i < w * h; i++) {
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pixels[i * 4 + 0] = r;
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pixels[i * 4 + 1] = g;
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pixels[i * 4 + 2] = b;
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pixels[i * 4 + 3] = a;
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}
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D3D11_TEXTURE2D_DESC desc = {0};
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desc.Width = w;
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desc.Height = h;
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desc.MipLevels = 1;
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desc.ArraySize = 1;
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desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
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desc.SampleDesc.Count = 1;
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desc.Usage = D3D11_USAGE_DEFAULT;
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desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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D3D11_SUBRESOURCE_DATA init = {pixels, w * 4, 0};
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Texture* tex = texture_create();
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ID3D11Device_CreateTexture2D(device, &desc, &init, &tex->texture);
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D3D11_SHADER_RESOURCE_VIEW_DESC srvd = {0};
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srvd.Format = desc.Format;
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srvd.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
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srvd.Texture2D.MipLevels = 1;
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ID3D11Device_CreateShaderResourceView(device, (ID3D11Resource*)tex->texture, &srvd, &tex->srv);
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tex->width = w;
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tex->height = h;
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free(pixels);
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return tex;
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}
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Texture* texture_create_checkerboard(ID3D11Device* device, uint32_t size, uint32_t checks) {
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uint8_t* pixels = (uint8_t*)malloc(size * size * 4);
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uint32_t cell = size / checks;
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for (uint32_t y = 0; y < size; y++) {
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for (uint32_t x = 0; x < size; x++) {
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uint8_t c = ((x / cell) + (y / cell)) % 2 ? 200 : 55;
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uint32_t i = (y * size + x) * 4;
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pixels[i] = pixels[i + 1] = pixels[i + 2] = c;
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pixels[i + 3] = 255;
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}
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}
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D3D11_TEXTURE2D_DESC desc = {0};
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desc.Width = size;
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desc.Height = size;
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desc.MipLevels = 1;
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desc.ArraySize = 1;
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desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
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desc.SampleDesc.Count = 1;
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desc.Usage = D3D11_USAGE_DEFAULT;
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desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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D3D11_SUBRESOURCE_DATA init = {pixels, size * 4, 0};
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Texture* tex = texture_create();
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ID3D11Device_CreateTexture2D(device, &desc, &init, &tex->texture);
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D3D11_SHADER_RESOURCE_VIEW_DESC srvd = {0};
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srvd.Format = desc.Format;
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srvd.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
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srvd.Texture2D.MipLevels = 1;
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ID3D11Device_CreateShaderResourceView(device, (ID3D11Resource*)tex->texture, &srvd, &tex->srv);
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tex->width = size;
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tex->height = size;
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free(pixels);
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return tex;
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}
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void texture_bind(Texture* texture, ID3D11DeviceContext* ctx, uint32_t slot) {
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if (!texture || !texture->srv) return;
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ID3D11DeviceContext_PSSetShaderResources(ctx, slot, 1, &texture->srv);
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ID3D11DeviceContext_PSSetSamplers(ctx, slot, 1, &(ID3D11SamplerState*){NULL});
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}
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