GUI: DirectX 11 render backend, part 3
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686a684490
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@ -28,6 +28,19 @@ const D3D_FEATURE_LEVEL possibleFeatureLevels[2]={
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D3D_FEATURE_LEVEL_10_0
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};
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struct FurnaceDXTexture {
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ID3D11Texture2D* tex;
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ID3D11ShaderResourceView* view;
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int width, height;
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unsigned char* lockedData;
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FurnaceDXTexture():
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tex(NULL),
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view(NULL),
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width(0),
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height(0),
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lockedData(NULL) {}
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};
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bool FurnaceGUIRenderDX11::destroyRenderTarget() {
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if (renderTarget!=NULL) {
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renderTarget->Release();
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@ -83,27 +96,104 @@ bool FurnaceGUIRenderDX11::createRenderTarget() {
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}
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ImTextureID FurnaceGUIRenderDX11::getTextureID(void* which) {
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return NULL;
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FurnaceDXTexture* t=(FurnaceDXTexture*)which;
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return (ImTextureID)t->view;
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}
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bool FurnaceGUIRenderDX11::lockTexture(void* which, void** data, int* pitch) {
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return false;
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FurnaceDXTexture* t=(FurnaceDXTexture*)which;
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if (t->lockedData!=NULL) return false;
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D3D11_MAPPED_SUBRESOURCE mappedRes;
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memset(&mappedRes,0,sizeof(mappedRes));
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HRESULT result=context->Map(t->tex,D3D11CalcSubresource(0,0,1),D3D11_MAP_WRITE,0,&mappedRes);
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if (result!=S_OK) {
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logW("could not map texture!");
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return false;
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}
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t->lockedData=(unsigned char*)mappedRes.pData;
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*data=mappedRes.pData;
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*pitch=mappedRes.RowPitch;
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return true;
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}
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bool FurnaceGUIRenderDX11::unlockTexture(void* which) {
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return false;
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FurnaceDXTexture* t=(FurnaceDXTexture*)which;
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if (t->lockedData==NULL) return false;
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context->Unmap(t->tex,D3D11CalcSubresource(0,0,1));
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t->lockedData=NULL;
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return true;
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}
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bool FurnaceGUIRenderDX11::updateTexture(void* which, void* data, int pitch) {
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return false;
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FurnaceDXTexture* t=(FurnaceDXTexture*)which;
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context->UpdateSubresource(t->tex,D3D11CalcSubresource(0,0,1),NULL,data,pitch,pitch*t->height);
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return true;
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}
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void* FurnaceGUIRenderDX11::createTexture(bool dynamic, int width, int height) {
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return NULL;
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D3D11_TEXTURE2D_DESC texDesc;
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D3D11_SHADER_RESOURCE_VIEW_DESC viewDesc;
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ID3D11Texture2D* tex=NULL;
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ID3D11ShaderResourceView* view=NULL;
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HRESULT result;
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memset(&texDesc,0,sizeof(texDesc));
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memset(&viewDesc,0,sizeof(viewDesc));
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texDesc.Width=width;
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texDesc.Height=height;
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texDesc.MipLevels=1;
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texDesc.ArraySize=1;
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texDesc.Format=DXGI_FORMAT_R8G8B8A8_UNORM; // ???
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texDesc.SampleDesc.Count=1;
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texDesc.SampleDesc.Quality=0;
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texDesc.Usage=dynamic?D3D11_USAGE_DYNAMIC:D3D11_USAGE_DEFAULT;
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texDesc.BindFlags=D3D11_BIND_SHADER_RESOURCE;
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texDesc.CPUAccessFlags=dynamic?D3D11_CPU_ACCESS_WRITE:0;
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texDesc.MiscFlags=0;
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result=device->CreateTexture2D(&texDesc,NULL,&tex);
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if (result!=S_OK) {
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logW("could not create texture! %.8x",result);
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return NULL;
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}
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viewDesc.Format=texDesc.Format=texDesc.Format;
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viewDesc.ViewDimension=D3D11_SRV_DIMENSION_TEXTURE2D;
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viewDesc.Texture2D.MostDetailedMip=0;
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viewDesc.Texture2D.MipLevels=texDesc.MipLevels;
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result=device->CreateShaderResourceView(tex,&viewDesc,&view);
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if (result!=S_OK) {
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logW("could not create texture view! %.8x",result);
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tex->Release();
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return NULL;
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}
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FurnaceDXTexture* ret=new FurnaceDXTexture;
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ret->width=width;
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ret->height=height;
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ret->tex=tex;
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ret->view=view;
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textures.push_back(ret);
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return ret;
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}
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bool FurnaceGUIRenderDX11::destroyTexture(void* which) {
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return false;
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FurnaceDXTexture* t=(FurnaceDXTexture*)which;
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t->view->Release();
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t->tex->Release();
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delete t;
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for (size_t i=0; i<textures.size(); i++) {
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if (textures[i]==t) {
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textures.erase(textures.begin()+i);
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break;
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}
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}
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return true;
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}
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void FurnaceGUIRenderDX11::setTextureBlendMode(void* which, FurnaceGUIBlendMode mode) {
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@ -115,9 +205,6 @@ void FurnaceGUIRenderDX11::setBlendMode(FurnaceGUIBlendMode mode) {
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void FurnaceGUIRenderDX11::resized(const SDL_Event& ev) {
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destroyRenderTarget();
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swapchain->ResizeBuffers(0,0,0,DXGI_FORMAT_UNKNOWN,0);
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createRenderTarget();
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}
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@ -219,6 +306,13 @@ void FurnaceGUIRenderDX11::initGUI(SDL_Window* win) {
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bool FurnaceGUIRenderDX11::quit() {
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destroyRenderTarget();
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for (FurnaceDXTexture* i: textures) {
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i->view->Release();
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i->tex->Release();
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delete i;
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}
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textures.clear();
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if (swapchain!=NULL) {
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swapchain->Release();
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swapchain=NULL;
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@ -26,6 +26,8 @@ typedef void ID3D11RenderTargetView;
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typedef void IDXGISwapChain;
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#endif
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struct FurnaceDXTexture;
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class FurnaceGUIRenderDX11: public FurnaceGUIRender {
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ID3D11Device* device;
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ID3D11DeviceContext* context;
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@ -37,6 +39,8 @@ class FurnaceGUIRenderDX11: public FurnaceGUIRender {
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bool destroyRenderTarget();
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bool createRenderTarget();
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std::vector<FurnaceDXTexture*> textures;
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public:
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ImTextureID getTextureID(void* which);
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bool lockTexture(void* which, void** data, int* pitch);
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