diff options
Diffstat (limited to 'gfx/skia/patches/archive/0024-Bug-887318-fix-bgra-readback.patch')
| -rw-r--r-- | gfx/skia/patches/archive/0024-Bug-887318-fix-bgra-readback.patch | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/gfx/skia/patches/archive/0024-Bug-887318-fix-bgra-readback.patch b/gfx/skia/patches/archive/0024-Bug-887318-fix-bgra-readback.patch new file mode 100644 index 000000000..864a0af7a --- /dev/null +++ b/gfx/skia/patches/archive/0024-Bug-887318-fix-bgra-readback.patch @@ -0,0 +1,217 @@ +diff --git a/gfx/gl/GLContextSkia.cpp b/gfx/gl/GLContextSkia.cpp +--- a/gfx/gl/GLContextSkia.cpp ++++ b/gfx/gl/GLContextSkia.cpp +@@ -303,39 +303,47 @@ const GLubyte* glGetString_mozilla(GrGLe + if (name == LOCAL_GL_VERSION) { + if (sGLContext.get()->IsGLES2()) { + return reinterpret_cast<const GLubyte*>("OpenGL ES 2.0"); + } else { + return reinterpret_cast<const GLubyte*>("2.0"); + } + } else if (name == LOCAL_GL_EXTENSIONS) { + // Only expose the bare minimum extensions we want to support to ensure a functional Ganesh + // as GLContext only exposes certain extensions + static bool extensionsStringBuilt = false; +- static char extensionsString[120]; ++ static char extensionsString[256]; + + if (!extensionsStringBuilt) { + if (sGLContext.get()->IsExtensionSupported(GLContext::EXT_texture_format_BGRA8888)) { + strcpy(extensionsString, "GL_EXT_texture_format_BGRA8888 "); + } + + if (sGLContext.get()->IsExtensionSupported(GLContext::OES_packed_depth_stencil)) { + strcat(extensionsString, "GL_OES_packed_depth_stencil "); + } + + if (sGLContext.get()->IsExtensionSupported(GLContext::EXT_packed_depth_stencil)) { + strcat(extensionsString, "GL_EXT_packed_depth_stencil "); + } + + if (sGLContext.get()->IsExtensionSupported(GLContext::OES_rgb8_rgba8)) { + strcat(extensionsString, "GL_OES_rgb8_rgba8 "); + } + ++ if (sGLContext.get()->IsExtensionSupported(GLContext::EXT_bgra)) { ++ strcat(extensionsString, "GL_EXT_bgra "); ++ } ++ ++ if (sGLContext.get()->IsExtensionSupported(GLContext::EXT_read_format_bgra)) { ++ strcat(extensionsString, "GL_EXT_read_format_bgra "); ++ } ++ + extensionsStringBuilt = true; + } + + return reinterpret_cast<const GLubyte*>(extensionsString); + + } else if (name == LOCAL_GL_SHADING_LANGUAGE_VERSION) { + if (sGLContext.get()->IsGLES2()) { + return reinterpret_cast<const GLubyte*>("OpenGL ES GLSL ES 1.0"); + } else { + return reinterpret_cast<const GLubyte*>("1.10"); +diff --git a/gfx/skia/src/gpu/gl/GrGpuGL.cpp b/gfx/skia/src/gpu/gl/GrGpuGL.cpp +--- a/gfx/skia/src/gpu/gl/GrGpuGL.cpp ++++ b/gfx/skia/src/gpu/gl/GrGpuGL.cpp +@@ -1,18 +1,18 @@ + /* + * Copyright 2011 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +- ++#include <algorithm> + #include "GrGpuGL.h" + #include "GrGLStencilBuffer.h" + #include "GrGLPath.h" + #include "GrGLShaderBuilder.h" + #include "GrTemplates.h" + #include "GrTypes.h" + #include "SkTemplates.h" + + static const GrGLuint GR_MAX_GLUINT = ~0U; + static const GrGLint GR_INVAL_GLINT = ~0; +@@ -1381,29 +1381,67 @@ bool GrGpuGL::readPixelsWillPayForYFlip( + // Note the rowBytes might be tight to the passed in data, but if data + // gets clipped in x to the target the rowBytes will no longer be tight. + if (left >= 0 && (left + width) < renderTarget->width()) { + return 0 == rowBytes || + GrBytesPerPixel(config) * width == rowBytes; + } else { + return false; + } + } + ++static void swizzleRow(void* buffer, int byteLen) { ++ uint8_t* src = (uint8_t*)buffer; ++ uint8_t* end = src + byteLen; ++ ++ GrAssert((end - src) % 4 == 0); ++ ++ for (; src != end; src += 4) { ++ std::swap(src[0], src[2]); ++ } ++} ++ ++bool GrGpuGL::canReadBGRA() const ++{ ++ if (kDesktop_GrGLBinding == this->glBinding() || ++ this->hasExtension("GL_EXT_bgra")) ++ return true; ++ ++ if (this->hasExtension("GL_EXT_read_format_bgra")) { ++ GrGLint readFormat = 0; ++ GrGLint readType = 0; ++ ++ GL_CALL(GetIntegerv(GR_GL_IMPLEMENTATION_COLOR_READ_FORMAT, &readFormat)); ++ GL_CALL(GetIntegerv(GR_GL_IMPLEMENTATION_COLOR_READ_TYPE, &readType)); ++ ++ return readFormat == GR_GL_BGRA && readType == GR_GL_UNSIGNED_BYTE; ++ } ++ ++ return false; ++} ++ + bool GrGpuGL::onReadPixels(GrRenderTarget* target, + int left, int top, + int width, int height, + GrPixelConfig config, + void* buffer, + size_t rowBytes) { + GrGLenum format; + GrGLenum type; + bool flipY = kBottomLeft_GrSurfaceOrigin == target->origin(); ++ bool needSwizzle = false; ++ ++ if (kBGRA_8888_GrPixelConfig == config && !this->canReadBGRA()) { ++ // Read RGBA and swizzle after ++ config = kRGBA_8888_GrPixelConfig; ++ needSwizzle = true; ++ } ++ + if (!this->configToGLFormats(config, false, NULL, &format, &type)) { + return false; + } + size_t bpp = GrBytesPerPixel(config); + if (!adjust_pixel_ops_params(target->width(), target->height(), bpp, + &left, &top, &width, &height, + const_cast<const void**>(&buffer), + &rowBytes)) { + return false; + } +@@ -1478,35 +1516,46 @@ bool GrGpuGL::onReadPixels(GrRenderTarge + scratch.reset(tightRowBytes); + void* tmpRow = scratch.get(); + // flip y in-place by rows + const int halfY = height >> 1; + char* top = reinterpret_cast<char*>(buffer); + char* bottom = top + (height - 1) * rowBytes; + for (int y = 0; y < halfY; y++) { + memcpy(tmpRow, top, tightRowBytes); + memcpy(top, bottom, tightRowBytes); + memcpy(bottom, tmpRow, tightRowBytes); ++ ++ if (needSwizzle) { ++ swizzleRow(top, tightRowBytes); ++ swizzleRow(bottom, tightRowBytes); ++ } ++ + top += rowBytes; + bottom -= rowBytes; + } + } + } else { +- GrAssert(readDst != buffer); GrAssert(rowBytes != tightRowBytes); ++ GrAssert(readDst != buffer); ++ GrAssert(rowBytes != tightRowBytes); + // copy from readDst to buffer while flipping y + // const int halfY = height >> 1; + const char* src = reinterpret_cast<const char*>(readDst); + char* dst = reinterpret_cast<char*>(buffer); + if (flipY) { + dst += (height-1) * rowBytes; + } + for (int y = 0; y < height; y++) { + memcpy(dst, src, tightRowBytes); ++ if (needSwizzle) { ++ swizzleRow(dst, tightRowBytes); ++ } ++ + src += readDstRowBytes; + if (!flipY) { + dst += rowBytes; + } else { + dst -= rowBytes; + } + } + } + return true; + } +diff --git a/gfx/skia/src/gpu/gl/GrGpuGL.h b/gfx/skia/src/gpu/gl/GrGpuGL.h +--- a/gfx/skia/src/gpu/gl/GrGpuGL.h ++++ b/gfx/skia/src/gpu/gl/GrGpuGL.h +@@ -243,20 +243,22 @@ private: + GrPixelConfig dataConfig, + const void* data, + size_t rowBytes); + + bool createRenderTargetObjects(int width, int height, + GrGLuint texID, + GrGLRenderTarget::Desc* desc); + + void fillInConfigRenderableTable(); + ++ bool canReadBGRA() const; ++ + GrGLContext fGLContext; + + // GL program-related state + ProgramCache* fProgramCache; + SkAutoTUnref<GrGLProgram> fCurrentProgram; + + /////////////////////////////////////////////////////////////////////////// + ///@name Caching of GL State + ///@{ + int fHWActiveTextureUnitIdx; |