1 files changed, 381 insertions, 0 deletions
diff --git a/gfx/angle/src/libANGLE/renderer/d3d/FramebufferD3D.cpp b/gfx/angle/src/libANGLE/renderer/d3d/FramebufferD3D.cpp
new file mode 100755
index 000000000..cc8bb0ea7
--- /dev/null
+++ b/gfx/angle/src/libANGLE/renderer/d3d/FramebufferD3D.cpp
@@ -0,0 +1,381 @@
+//
+// Copyright 2014 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// FramebufferD3D.cpp: Implements the DefaultAttachmentD3D and FramebufferD3D classes.
+
+#include "libANGLE/renderer/d3d/FramebufferD3D.h"
+
+#include "common/BitSetIterator.h"
+#include "libANGLE/formatutils.h"
+#include "libANGLE/Framebuffer.h"
+#include "libANGLE/FramebufferAttachment.h"
+#include "libANGLE/Surface.h"
+#include "libANGLE/renderer/ContextImpl.h"
+#include "libANGLE/renderer/d3d/RendererD3D.h"
+#include "libANGLE/renderer/d3d/RenderbufferD3D.h"
+#include "libANGLE/renderer/d3d/RenderTargetD3D.h"
+#include "libANGLE/renderer/d3d/SurfaceD3D.h"
+#include "libANGLE/renderer/d3d/SwapChainD3D.h"
+#include "libANGLE/renderer/d3d/TextureD3D.h"
+
+namespace rx
+{
+
+namespace
+{
+
+ClearParameters GetClearParameters(const gl::State &state, GLbitfield mask)
+{
+    ClearParameters clearParams;
+    memset(&clearParams, 0, sizeof(ClearParameters));
+
+    const auto &blendState = state.getBlendState();
+
+    for (unsigned int i = 0; i < ArraySize(clearParams.clearColor); i++)
+    {
+        clearParams.clearColor[i] = false;
+    }
+    clearParams.colorFClearValue = state.getColorClearValue();
+    clearParams.colorClearType = GL_FLOAT;
+    clearParams.colorMaskRed = blendState.colorMaskRed;
+    clearParams.colorMaskGreen = blendState.colorMaskGreen;
+    clearParams.colorMaskBlue = blendState.colorMaskBlue;
+    clearParams.colorMaskAlpha = blendState.colorMaskAlpha;
+    clearParams.clearDepth = false;
+    clearParams.depthClearValue =  state.getDepthClearValue();
+    clearParams.clearStencil = false;
+    clearParams.stencilClearValue = state.getStencilClearValue();
+    clearParams.stencilWriteMask = state.getDepthStencilState().stencilWritemask;
+    clearParams.scissorEnabled = state.isScissorTestEnabled();
+    clearParams.scissor = state.getScissor();
+
+    const gl::Framebuffer *framebufferObject = state.getDrawFramebuffer();
+    if (mask & GL_COLOR_BUFFER_BIT)
+    {
+        if (framebufferObject->hasEnabledDrawBuffer())
+        {
+            for (unsigned int i = 0; i < ArraySize(clearParams.clearColor); i++)
+            {
+                clearParams.clearColor[i] = true;
+            }
+        }
+    }
+
+    if (mask & GL_DEPTH_BUFFER_BIT)
+    {
+        if (state.getDepthStencilState().depthMask && framebufferObject->getDepthbuffer() != NULL)
+        {
+            clearParams.clearDepth = true;
+        }
+    }
+
+    if (mask & GL_STENCIL_BUFFER_BIT)
+    {
+        if (framebufferObject->getStencilbuffer() != NULL &&
+            framebufferObject->getStencilbuffer()->getStencilSize() > 0)
+        {
+            clearParams.clearStencil = true;
+        }
+    }
+
+    return clearParams;
+}
+
+}
+
+FramebufferD3D::FramebufferD3D(const gl::FramebufferState &data, RendererD3D *renderer)
+    : FramebufferImpl(data), mRenderer(renderer)
+{
+}
+
+FramebufferD3D::~FramebufferD3D()
+{
+}
+
+gl::Error FramebufferD3D::clear(ContextImpl *context, GLbitfield mask)
+{
+    ClearParameters clearParams = GetClearParameters(context->getGLState(), mask);
+    return clearImpl(context, clearParams);
+}
+
+gl::Error FramebufferD3D::clearBufferfv(ContextImpl *context,
+                                        GLenum buffer,
+                                        GLint drawbuffer,
+                                        const GLfloat *values)
+{
+    // glClearBufferfv can be called to clear the color buffer or depth buffer
+    ClearParameters clearParams = GetClearParameters(context->getGLState(), 0);
+
+    if (buffer == GL_COLOR)
+    {
+        for (unsigned int i = 0; i < ArraySize(clearParams.clearColor); i++)
+        {
+            clearParams.clearColor[i] = (drawbuffer == static_cast<int>(i));
+        }
+        clearParams.colorFClearValue = gl::ColorF(values[0], values[1], values[2], values[3]);
+        clearParams.colorClearType = GL_FLOAT;
+    }
+
+    if (buffer == GL_DEPTH)
+    {
+        clearParams.clearDepth = true;
+        clearParams.depthClearValue = values[0];
+    }
+
+    return clearImpl(context, clearParams);
+}
+
+gl::Error FramebufferD3D::clearBufferuiv(ContextImpl *context,
+                                         GLenum buffer,
+                                         GLint drawbuffer,
+                                         const GLuint *values)
+{
+    // glClearBufferuiv can only be called to clear a color buffer
+    ClearParameters clearParams = GetClearParameters(context->getGLState(), 0);
+    for (unsigned int i = 0; i < ArraySize(clearParams.clearColor); i++)
+    {
+        clearParams.clearColor[i] = (drawbuffer == static_cast<int>(i));
+    }
+    clearParams.colorUIClearValue = gl::ColorUI(values[0], values[1], values[2], values[3]);
+    clearParams.colorClearType = GL_UNSIGNED_INT;
+
+    return clearImpl(context, clearParams);
+}
+
+gl::Error FramebufferD3D::clearBufferiv(ContextImpl *context,
+                                        GLenum buffer,
+                                        GLint drawbuffer,
+                                        const GLint *values)
+{
+    // glClearBufferiv can be called to clear the color buffer or stencil buffer
+    ClearParameters clearParams = GetClearParameters(context->getGLState(), 0);
+
+    if (buffer == GL_COLOR)
+    {
+        for (unsigned int i = 0; i < ArraySize(clearParams.clearColor); i++)
+        {
+            clearParams.clearColor[i] = (drawbuffer == static_cast<int>(i));
+        }
+        clearParams.colorIClearValue = gl::ColorI(values[0], values[1], values[2], values[3]);
+        clearParams.colorClearType = GL_INT;
+    }
+
+    if (buffer == GL_STENCIL)
+    {
+        clearParams.clearStencil = true;
+        clearParams.stencilClearValue = values[1];
+    }
+
+    return clearImpl(context, clearParams);
+}
+
+gl::Error FramebufferD3D::clearBufferfi(ContextImpl *context,
+                                        GLenum buffer,
+                                        GLint drawbuffer,
+                                        GLfloat depth,
+                                        GLint stencil)
+{
+    // glClearBufferfi can only be called to clear a depth stencil buffer
+    ClearParameters clearParams   = GetClearParameters(context->getGLState(), 0);
+    clearParams.clearDepth = true;
+    clearParams.depthClearValue = depth;
+    clearParams.clearStencil = true;
+    clearParams.stencilClearValue = stencil;
+
+    return clearImpl(context, clearParams);
+}
+
+GLenum FramebufferD3D::getImplementationColorReadFormat() const
+{
+    const gl::FramebufferAttachment *readAttachment = mState.getReadAttachment();
+
+    if (readAttachment == nullptr)
+    {
+        return GL_NONE;
+    }
+
+    RenderTargetD3D *attachmentRenderTarget = NULL;
+    gl::Error error = readAttachment->getRenderTarget(&attachmentRenderTarget);
+    if (error.isError())
+    {
+        return GL_NONE;
+    }
+
+    GLenum implementationFormat = getRenderTargetImplementationFormat(attachmentRenderTarget);
+    const gl::InternalFormat &implementationFormatInfo = gl::GetInternalFormatInfo(implementationFormat);
+
+    return implementationFormatInfo.getReadPixelsFormat();
+}
+
+GLenum FramebufferD3D::getImplementationColorReadType() const
+{
+    const gl::FramebufferAttachment *readAttachment = mState.getReadAttachment();
+
+    if (readAttachment == nullptr)
+    {
+        return GL_NONE;
+    }
+
+    RenderTargetD3D *attachmentRenderTarget = NULL;
+    gl::Error error = readAttachment->getRenderTarget(&attachmentRenderTarget);
+    if (error.isError())
+    {
+        return GL_NONE;
+    }
+
+    GLenum implementationFormat = getRenderTargetImplementationFormat(attachmentRenderTarget);
+    const gl::InternalFormat &implementationFormatInfo = gl::GetInternalFormatInfo(implementationFormat);
+
+    return implementationFormatInfo.getReadPixelsType();
+}
+
+gl::Error FramebufferD3D::readPixels(ContextImpl *context,
+                                     const gl::Rectangle &area,
+                                     GLenum format,
+                                     GLenum type,
+                                     GLvoid *pixels) const
+{
+    const gl::PixelPackState &packState = context->getGLState().getPackState();
+
+    const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(gl::GetSizedInternalFormat(format, type));
+
+    GLuint outputPitch = 0;
+    ANGLE_TRY_RESULT(formatInfo.computeRowPitch(area.width, packState.alignment, packState.rowLength),
+                     outputPitch);
+    GLuint outputSkipBytes = 0;
+    ANGLE_TRY_RESULT(formatInfo.computeSkipBytes(outputPitch, 0, packState, false),
+                     outputSkipBytes);
+
+    return readPixelsImpl(area, format, type, outputPitch, packState,
+                          reinterpret_cast<uint8_t *>(pixels) + outputSkipBytes);
+}
+
+gl::Error FramebufferD3D::blit(ContextImpl *context,
+                               const gl::Rectangle &sourceArea,
+                               const gl::Rectangle &destArea,
+                               GLbitfield mask,
+                               GLenum filter)
+{
+    const auto &glState                      = context->getGLState();
+    const gl::Framebuffer *sourceFramebuffer = glState.getReadFramebuffer();
+    bool blitRenderTarget = false;
+    if ((mask & GL_COLOR_BUFFER_BIT) && sourceFramebuffer->getReadColorbuffer() != nullptr &&
+        mState.getFirstColorAttachment() != nullptr)
+    {
+        blitRenderTarget = true;
+    }
+
+    bool blitStencil = false;
+    if ((mask & GL_STENCIL_BUFFER_BIT) && sourceFramebuffer->getStencilbuffer() != nullptr &&
+        mState.getStencilAttachment() != nullptr)
+    {
+        blitStencil = true;
+    }
+
+    bool blitDepth = false;
+    if ((mask & GL_DEPTH_BUFFER_BIT) && sourceFramebuffer->getDepthbuffer() != nullptr &&
+        mState.getDepthAttachment() != nullptr)
+    {
+        blitDepth = true;
+    }
+
+    if (blitRenderTarget || blitDepth || blitStencil)
+    {
+        const gl::Rectangle *scissor =
+            glState.isScissorTestEnabled() ? &glState.getScissor() : nullptr;
+        gl::Error error = blitImpl(sourceArea, destArea, scissor, blitRenderTarget, blitDepth,
+                                   blitStencil, filter, sourceFramebuffer);
+        if (error.isError())
+        {
+            return error;
+        }
+    }
+
+    return gl::Error(GL_NO_ERROR);
+}
+
+bool FramebufferD3D::checkStatus() const
+{
+    // if we have both a depth and stencil buffer, they must refer to the same object
+    // since we only support packed_depth_stencil and not separate depth and stencil
+    if (mState.getDepthAttachment() != nullptr && mState.getStencilAttachment() != nullptr &&
+        mState.getDepthStencilAttachment() == nullptr)
+    {
+        return false;
+    }
+
+    // D3D11 does not allow for overlapping RenderTargetViews
+    if (!mState.colorAttachmentsAreUniqueImages())
+    {
+        return false;
+    }
+
+    // D3D requires all render targets to have the same dimensions.
+    if (!mState.attachmentsHaveSameDimensions())
+    {
+        return false;
+    }
+
+    return true;
+}
+
+void FramebufferD3D::syncState(const gl::Framebuffer::DirtyBits &dirtyBits)
+{
+    bool invalidateColorAttachmentCache = false;
+
+    if (!mColorAttachmentsForRender.valid())
+    {
+        invalidateColorAttachmentCache = true;
+    }
+
+    for (auto dirtyBit : angle::IterateBitSet(dirtyBits))
+    {
+        if ((dirtyBit >= gl::Framebuffer::DIRTY_BIT_COLOR_ATTACHMENT_0 &&
+             dirtyBit < gl::Framebuffer::DIRTY_BIT_COLOR_ATTACHMENT_MAX) ||
+            dirtyBit == gl::Framebuffer::DIRTY_BIT_DRAW_BUFFERS)
+        {
+            invalidateColorAttachmentCache = true;
+        }
+    }
+
+    if (!invalidateColorAttachmentCache)
+    {
+        return;
+    }
+
+    // Does not actually free memory
+    gl::AttachmentList colorAttachmentsForRender;
+
+    const auto &colorAttachments = mState.getColorAttachments();
+    const auto &drawBufferStates = mState.getDrawBufferStates();
+    const auto &workarounds      = mRenderer->getWorkarounds();
+
+    for (size_t attachmentIndex = 0; attachmentIndex < colorAttachments.size(); ++attachmentIndex)
+    {
+        GLenum drawBufferState = drawBufferStates[attachmentIndex];
+        const gl::FramebufferAttachment &colorAttachment = colorAttachments[attachmentIndex];
+
+        if (colorAttachment.isAttached() && drawBufferState != GL_NONE)
+        {
+            ASSERT(drawBufferState == GL_BACK || drawBufferState == (GL_COLOR_ATTACHMENT0_EXT + attachmentIndex));
+            colorAttachmentsForRender.push_back(&colorAttachment);
+        }
+        else if (!workarounds.mrtPerfWorkaround)
+        {
+            colorAttachmentsForRender.push_back(nullptr);
+        }
+    }
+
+    mColorAttachmentsForRender = std::move(colorAttachmentsForRender);
+}
+
+const gl::AttachmentList &FramebufferD3D::getColorAttachmentsForRender() const
+{
+    ASSERT(mColorAttachmentsForRender.valid());
+    return mColorAttachmentsForRender.value();
+}
+
+}  // namespace rx