When possible, create RenderTarget9s from textures.

src/libANGLE/renderer/d3d/d3d9/RenderTarget9.cpp

@@ -17,7 +17,13 @@ namespace rx
 {
 
 // TODO: AddRef the incoming surface to take ownership instead of expecting that its ref is being given.
-TextureRenderTarget9::TextureRenderTarget9(IDirect3DSurface9 *surface, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth,
+TextureRenderTarget9::TextureRenderTarget9(IDirect3DBaseTexture9 *texture,
+                                           size_t textureLevel,
+                                           IDirect3DSurface9 *surface,
+                                           GLenum internalFormat,
+                                           GLsizei width,
+                                           GLsizei height,
+                                           GLsizei depth,
                                            GLsizei samples)
     : mWidth(width),
       mHeight(height),
@@ -25,6 +31,8 @@ TextureRenderTarget9::TextureRenderTarget9(IDirect3DSurface9 *surface, GLenum in
       mInternalFormat(internalFormat),
       mD3DFormat(D3DFMT_UNKNOWN),
       mSamples(samples),
+      mTexture(texture),
+      mTextureLevel(textureLevel),
       mRenderTarget(surface)
 {
     ASSERT(mDepth == 1);
@@ -39,6 +47,7 @@ TextureRenderTarget9::TextureRenderTarget9(IDirect3DSurface9 *surface, GLenum in
 
 TextureRenderTarget9::~TextureRenderTarget9()
 {
+    SafeRelease(mTexture);
     SafeRelease(mRenderTarget);
 }
 
@@ -67,7 +76,17 @@ GLsizei TextureRenderTarget9::getSamples() const
     return mSamples;
 }
 
-IDirect3DSurface9 *TextureRenderTarget9::getSurface()
+IDirect3DBaseTexture9 *TextureRenderTarget9::getTexture() const
+{
+    return mTexture;
+}
+
+size_t TextureRenderTarget9::getTextureLevel() const
+{
+    return mTextureLevel;
+}
+
+IDirect3DSurface9 *TextureRenderTarget9::getSurface() const
 {
     // Caller is responsible for releasing the returned surface reference.
     // TODO: remove the AddRef to match RenderTarget11
@@ -120,11 +139,21 @@ GLsizei SurfaceRenderTarget9::getSamples() const
     return 0;
 }
 
-IDirect3DSurface9 *SurfaceRenderTarget9::getSurface()
+IDirect3DSurface9 *SurfaceRenderTarget9::getSurface() const
 {
     return (mDepth ? mSwapChain->getDepthStencil() : mSwapChain->getRenderTarget());
 }
 
+IDirect3DBaseTexture9 *SurfaceRenderTarget9::getTexture() const
+{
+    return (mDepth ? nullptr : mSwapChain->getOffscreenTexture());
+}
+
+size_t SurfaceRenderTarget9::getTextureLevel() const
+{
+    return 0;
+}
+
 D3DFORMAT SurfaceRenderTarget9::getD3DFormat() const
 {
     return d3d9::GetTextureFormatInfo(getInternalFormat()).texFormat;

src/libANGLE/renderer/d3d/d3d9/RenderTarget9.h

@@ -22,8 +22,12 @@ class RenderTarget9 : public RenderTargetD3D
   public:
     RenderTarget9() { }
     virtual ~RenderTarget9() { }
+    // Retrieve the texture that backs this render target, may be null for swap chain render
+    // targets.
+    virtual IDirect3DBaseTexture9 *getTexture() const = 0;
+    virtual size_t getTextureLevel() const = 0;
 
-    virtual IDirect3DSurface9 *getSurface() = 0;
+    virtual IDirect3DSurface9 *getSurface() const = 0;
 
     virtual D3DFORMAT getD3DFormat() const = 0;
 };
@@ -31,7 +35,13 @@ class RenderTarget9 : public RenderTargetD3D
 class TextureRenderTarget9 : public RenderTarget9
 {
   public:
-    TextureRenderTarget9(IDirect3DSurface9 *surface, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth,
+    TextureRenderTarget9(IDirect3DBaseTexture9 *texture,
+                         size_t textureLevel,
+                         IDirect3DSurface9 *surface,
+                         GLenum internalFormat,
+                         GLsizei width,
+                         GLsizei height,
+                         GLsizei depth,
                          GLsizei samples);
     virtual ~TextureRenderTarget9();
 
@@ -41,7 +51,9 @@ class TextureRenderTarget9 : public RenderTarget9
     GLenum getInternalFormat() const override;
     GLsizei getSamples() const override;
 
-    IDirect3DSurface9 *getSurface() override;
+    IDirect3DBaseTexture9 *getTexture() const override;
+    size_t getTextureLevel() const override;
+    IDirect3DSurface9 *getSurface() const override;
 
     D3DFORMAT getD3DFormat() const override;
 
@@ -53,6 +65,8 @@ class TextureRenderTarget9 : public RenderTarget9
     D3DFORMAT mD3DFormat;
     GLsizei mSamples;
 
+    IDirect3DBaseTexture9 *mTexture;
+    size_t mTextureLevel;
     IDirect3DSurface9 *mRenderTarget;
 };
 
@@ -68,7 +82,9 @@ class SurfaceRenderTarget9 : public RenderTarget9
     GLenum getInternalFormat() const override;
     GLsizei getSamples() const override;
 
-    IDirect3DSurface9 *getSurface() override;
+    IDirect3DBaseTexture9 *getTexture() const override;
+    size_t getTextureLevel() const override;
+    IDirect3DSurface9 *getSurface() const override;
 
     D3DFORMAT getD3DFormat() const override;
 

src/libANGLE/renderer/d3d/d3d9/Renderer9.cpp

@@ -2608,6 +2608,7 @@ gl::Error Renderer9::createRenderTarget(int width, int height, GLenum format, GL
     const gl::TextureCaps &textureCaps = getRendererTextureCaps().get(format);
     GLuint supportedSamples = textureCaps.getNearestSamples(samples);
 
+    IDirect3DTexture9 *texture      = nullptr;
     IDirect3DSurface9 *renderTarget = NULL;
     if (width > 0 && height > 0)
     {
@@ -2623,10 +2624,23 @@ gl::Error Renderer9::createRenderTarget(int width, int height, GLenum format, GL
         }
         else
         {
-            requiresInitialization = (d3d9FormatInfo.dataInitializerFunction != NULL);
-            result = mDevice->CreateRenderTarget(width, height, d3d9FormatInfo.renderFormat,
-                                                 gl_d3d9::GetMultisampleType(supportedSamples),
-                                                 0, FALSE, &renderTarget, NULL);
+            requiresInitialization = (d3d9FormatInfo.dataInitializerFunction != nullptr);
+            if (supportedSamples > 0)
+            {
+                result = mDevice->CreateRenderTarget(width, height, d3d9FormatInfo.renderFormat,
+                                                     gl_d3d9::GetMultisampleType(supportedSamples),
+                                                     0, FALSE, &renderTarget, nullptr);
+            }
+            else
+            {
+                result = mDevice->CreateTexture(
+                    width, height, 1, D3DUSAGE_RENDERTARGET, d3d9FormatInfo.texFormat,
+                    getTexturePool(D3DUSAGE_RENDERTARGET), &texture, nullptr);
+                if (!FAILED(result))
+                {
+                    result = texture->GetSurfaceLevel(0, &renderTarget);
+                }
+            }
         }
 
         if (FAILED(result))
@@ -2648,7 +2662,8 @@ gl::Error Renderer9::createRenderTarget(int width, int height, GLenum format, GL
         }
     }
 
-    *outRT = new TextureRenderTarget9(renderTarget, format, width, height, 1, supportedSamples);
+    *outRT = new TextureRenderTarget9(texture, 0, renderTarget, format, width, height, 1,
+                                      supportedSamples);
     return gl::Error(GL_NO_ERROR);
 }
 

src/libANGLE/renderer/d3d/d3d9/TextureStorage9.cpp

@@ -181,16 +181,24 @@ gl::Error TextureStorage9_2D::getRenderTarget(const gl::ImageIndex &index, Rende
 
     if (!mRenderTarget && isRenderTarget())
     {
+        IDirect3DBaseTexture9 *baseTexture = NULL;
+        gl::Error error = getBaseTexture(&baseTexture);
+        if (error.isError())
+        {
+            return error;
+        }
+
         IDirect3DSurface9 *surface = NULL;
-        gl::Error error = getSurfaceLevel(GL_TEXTURE_2D, index.mipIndex, false, &surface);
+        error = getSurfaceLevel(GL_TEXTURE_2D, index.mipIndex, false, &surface);
         if (error.isError())
         {
             return error;
         }
 
-        mRenderTarget =
-            new TextureRenderTarget9(surface, mInternalFormat, static_cast<GLsizei>(mTextureWidth),
-                                     static_cast<GLsizei>(mTextureHeight), 1, 0);
+        baseTexture->AddRef();
+        mRenderTarget = new TextureRenderTarget9(baseTexture, mTopLevel, surface, mInternalFormat,
+                                                 static_cast<GLsizei>(mTextureWidth),
+                                                 static_cast<GLsizei>(mTextureHeight), 1, 0);
     }
 
     ASSERT(outRT);
@@ -360,17 +368,25 @@ gl::Error TextureStorage9_Cube::getRenderTarget(const gl::ImageIndex &index, Ren
 
     if (mRenderTarget[index.layerIndex] == NULL && isRenderTarget())
     {
+        IDirect3DBaseTexture9 *baseTexture = NULL;
+        gl::Error error = getBaseTexture(&baseTexture);
+        if (error.isError())
+        {
+            return error;
+        }
+
         IDirect3DSurface9 *surface = NULL;
-        gl::Error error = getSurfaceLevel(GL_TEXTURE_CUBE_MAP_POSITIVE_X + index.layerIndex,
-                                          mTopLevel + index.mipIndex, false, &surface);
+        error = getSurfaceLevel(GL_TEXTURE_CUBE_MAP_POSITIVE_X + index.layerIndex,
+                                mTopLevel + index.mipIndex, false, &surface);
         if (error.isError())
         {
             return error;
         }
 
-        mRenderTarget[index.layerIndex] =
-            new TextureRenderTarget9(surface, mInternalFormat, static_cast<GLsizei>(mTextureWidth),
-                                     static_cast<GLsizei>(mTextureHeight), 1, 0);
+        baseTexture->AddRef();
+        mRenderTarget[index.layerIndex] = new TextureRenderTarget9(
+            baseTexture, mTopLevel + index.mipIndex, surface, mInternalFormat,
+            static_cast<GLsizei>(mTextureWidth), static_cast<GLsizei>(mTextureHeight), 1, 0);
     }
 
     *outRT = mRenderTarget[index.layerIndex];