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Metal backend, part 1

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tildearrow 2024-04-11 23:57:39 -05:00
parent eddbd16bd6
commit bd676bde64
1 changed files with 44 additions and 14 deletions
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58
src/gui/render/renderMetal.mm
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@ -28,6 +28,9 @@
struct FurnaceGUIRenderMetalPrivate {
CAMetalLayer* context;
id<MTLCommandQueue> cmdQueue;
id<MTLCommandBuffer> cmdBuf;
id<MTLRenderCommandEncoder> renderEncoder;
id<CAMetalDrawable> drawable;
MTLRenderPassDescriptor* renderPass;
};
@ -39,39 +42,47 @@ class FurnaceMetalTexture: public FurnaceGUITexture {
};
ImTextureID FurnaceGUIRenderMetal::getTextureID(FurnaceGUITexture* which) {
FurnaceSDLTexture* t=(FurnaceSDLTexture*)which;
FurnaceMetalTexture* t=(FurnaceMetalTexture*)which;
return t->tex;
}
bool FurnaceGUIRenderMetal::lockTexture(FurnaceGUITexture* which, void** data, int* pitch) {
FurnaceSDLTexture* t=(FurnaceSDLTexture*)which;
return SDL_LockTexture(t->tex,NULL,data,pitch)==0;
return false;
/*
FurnaceMetalTexture* t=(FurnaceMetalTexture*)which;
return SDL_LockTexture(t->tex,NULL,data,pitch)==0;*/
}
bool FurnaceGUIRenderMetal::unlockTexture(FurnaceGUITexture* which) {
FurnaceSDLTexture* t=(FurnaceSDLTexture*)which;
return false;
/*
FurnaceMetalTexture* t=(FurnaceMetalTexture*)which;
SDL_UnlockTexture(t->tex);
return true;
return true;*/
}
bool FurnaceGUIRenderMetal::updateTexture(FurnaceGUITexture* which, void* data, int pitch) {
return false;
/*
FurnaceSDLTexture* t=(FurnaceSDLTexture*)which;
return SDL_UpdateTexture(t->tex,NULL,data,pitch)==0;
return SDL_UpdateTexture(t->tex,NULL,data,pitch)==0;*/
}
FurnaceGUITexture* FurnaceGUIRenderMetal::createTexture(bool dynamic, int width, int height, bool interpolate) {
SDL_Texture* t=SDL_CreateTexture(sdlRend,SDL_PIXELFORMAT_ABGR8888,dynamic?SDL_TEXTUREACCESS_STREAMING:SDL_TEXTUREACCESS_STATIC,width,height);
MTLTextureDescriptor* texDesc=[MTLTextureDescriptor texture2DDescriptorWithPixelFormat:MTLPixelFormatRGBA8Unorm width:(NSUInteger)width height:(NSUInteger)height mipmapped:NO];
texDesc.usage=MTLTextureUsageShaderRead;
texDesc.storageMode=MTLStorageModeManaged;
if (t==NULL) return NULL;
FurnaceSDLTexture* ret=new FurnaceSDLTexture;
ret->tex=t;
id<MTLTexture> texture=[priv->context.device newTextureWithDescriptor:texDesc];
if (texture==NULL) return NULL;
FurnaceMetalTexture* ret=new FurnaceMetalTexture;
ret->tex=texture;
return ret;
}
bool FurnaceGUIRenderMetal::destroyTexture(FurnaceGUITexture* which) {
FurnaceSDLTexture* t=(FurnaceSDLTexture*)which;
SDL_DestroyTexture(t->tex);
FurnaceMetalTexture* t=(FurnaceMetalTexture*)which;
delete t;
return true;
}
@ -82,7 +93,19 @@ void FurnaceGUIRenderMetal::setTextureBlendMode(FurnaceGUITexture* which, Furnac
void FurnaceGUIRenderMetal::setBlendMode(FurnaceGUIBlendMode mode) {
}
// you should only call this once!!!
void FurnaceGUIRenderMetal::clear(ImVec4 color) {
int outW, outH;
getOutputSize(outW,outH);
priv->context.drawableSize=CGSizeMake(outW,outH);
priv->drawable=[priv->context nextDrawable];
priv->cmdBuf=[priv->cmdQueue commandBuffer];
priv->renderPass.colorAttachments[0].clearColor=MTLClearColorMake(color.x,color.y,color.z,color.w);
priv->renderPass.colorAttachments[0].texture=drawable.texture;
priv->renderPass.colorAttachments[0].loadAction=MTLLoadActionClear;
priv->renderPass.colorAttachments[0].storeAction=MTLStoreActionStore;
priv->renderEncoder=[commandBuffer renderCommandEncoderWithDescriptor:renderPassDescriptor];
}
bool FurnaceGUIRenderMetal::newFrame() {
@ -90,19 +113,26 @@ bool FurnaceGUIRenderMetal::newFrame() {
}
void FurnaceGUIRenderMetal::createFontsTexture() {
ImGui_ImplMetal_CreateFontsTexture(priv->context);
}
void FurnaceGUIRenderMetal::destroyFontsTexture() {
ImGui_ImplMetal_DestroyFontsTexture();
}
void FurnaceGUIRenderMetal::renderGUI() {
ImGui_ImplMetal_RenderDrawData(ImGui::GetDrawData());
ImGui_ImplMetal_RenderDrawData(ImGui::GetDrawData(),priv->cmdBuf,priv->renderEncoder);
}
void FurnaceGUIRenderMetal::wipe(float alpha) {
// TODO
}
void FurnaceGUIRenderMetal::present() {
[priv->renderEncoder endEncoding];
[priv->cmdBuf presentDrawable:priv->drawable];
[priv->cmdBuf commit];
}
bool FurnaceGUIRenderMetal::getOutputSize(int& w, int& h) {