mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-28 23:31:56 +00:00
1602 lines
53 KiB
C++
1602 lines
53 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "gfxUtils.h"
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#include "cairo.h"
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#include "gfxContext.h"
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#include "gfxImageSurface.h"
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#include "gfxPlatform.h"
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#include "gfxDrawable.h"
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#include "imgIEncoder.h"
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#include "mozilla/Base64.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/DataSurfaceHelpers.h"
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#include "mozilla/gfx/Logging.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/Vector.h"
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#include "nsComponentManagerUtils.h"
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#include "nsIClipboardHelper.h"
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#include "nsIFile.h"
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#include "nsIPresShell.h"
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#include "nsPresContext.h"
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#include "nsRegion.h"
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#include "nsServiceManagerUtils.h"
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#include "yuv_convert.h"
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#include "ycbcr_to_rgb565.h"
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#include "GeckoProfiler.h"
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#include "ImageContainer.h"
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#include "ImageRegion.h"
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#include "gfx2DGlue.h"
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#include "gfxPrefs.h"
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#ifdef XP_WIN
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#include "gfxWindowsPlatform.h"
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#endif
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using namespace mozilla;
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using namespace mozilla::image;
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using namespace mozilla::layers;
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using namespace mozilla::gfx;
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#include "DeprecatedPremultiplyTables.h"
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#undef compress
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#include "mozilla/Compression.h"
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using namespace mozilla::Compression;
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extern "C" {
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/**
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* Dump a raw image to the default log. This function is exported
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* from libxul, so it can be called from any library in addition to
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* (of course) from a debugger.
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*
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* Note: this helper currently assumes that all 2-bytepp images are
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* r5g6b5, and that all 4-bytepp images are r8g8b8a8.
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*/
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NS_EXPORT
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void mozilla_dump_image(void* bytes, int width, int height, int bytepp,
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int strideBytes)
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{
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if (0 == strideBytes) {
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strideBytes = width * bytepp;
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}
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SurfaceFormat format;
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// TODO more flexible; parse string?
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switch (bytepp) {
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case 2:
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format = SurfaceFormat::R5G6B5;
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break;
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case 4:
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default:
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format = SurfaceFormat::R8G8B8A8;
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break;
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}
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RefPtr<DataSourceSurface> surf =
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Factory::CreateWrappingDataSourceSurface((uint8_t*)bytes, strideBytes,
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IntSize(width, height),
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format);
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gfxUtils::DumpAsDataURI(surf);
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}
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}
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static const uint8_t PremultiplyValue(uint8_t a, uint8_t v) {
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return gfxUtils::sPremultiplyTable[a*256+v];
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}
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static const uint8_t UnpremultiplyValue(uint8_t a, uint8_t v) {
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return gfxUtils::sUnpremultiplyTable[a*256+v];
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}
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static void
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PremultiplyData(const uint8_t* srcData,
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size_t srcStride, // row-to-row stride in bytes
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uint8_t* destData,
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size_t destStride, // row-to-row stride in bytes
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size_t pixelWidth,
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size_t rowCount)
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{
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MOZ_ASSERT(srcData && destData);
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for (size_t y = 0; y < rowCount; ++y) {
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const uint8_t* src = srcData + y * srcStride;
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uint8_t* dest = destData + y * destStride;
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for (size_t x = 0; x < pixelWidth; ++x) {
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#ifdef IS_LITTLE_ENDIAN
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uint8_t b = *src++;
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uint8_t g = *src++;
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uint8_t r = *src++;
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uint8_t a = *src++;
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*dest++ = PremultiplyValue(a, b);
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*dest++ = PremultiplyValue(a, g);
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*dest++ = PremultiplyValue(a, r);
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*dest++ = a;
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#else
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uint8_t a = *src++;
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uint8_t r = *src++;
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uint8_t g = *src++;
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uint8_t b = *src++;
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*dest++ = a;
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*dest++ = PremultiplyValue(a, r);
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*dest++ = PremultiplyValue(a, g);
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*dest++ = PremultiplyValue(a, b);
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#endif
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}
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}
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}
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static void
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UnpremultiplyData(const uint8_t* srcData,
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size_t srcStride, // row-to-row stride in bytes
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uint8_t* destData,
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size_t destStride, // row-to-row stride in bytes
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size_t pixelWidth,
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size_t rowCount)
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{
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MOZ_ASSERT(srcData && destData);
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for (size_t y = 0; y < rowCount; ++y) {
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const uint8_t* src = srcData + y * srcStride;
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uint8_t* dest = destData + y * destStride;
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for (size_t x = 0; x < pixelWidth; ++x) {
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#ifdef IS_LITTLE_ENDIAN
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uint8_t b = *src++;
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uint8_t g = *src++;
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uint8_t r = *src++;
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uint8_t a = *src++;
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*dest++ = UnpremultiplyValue(a, b);
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*dest++ = UnpremultiplyValue(a, g);
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*dest++ = UnpremultiplyValue(a, r);
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*dest++ = a;
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#else
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uint8_t a = *src++;
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uint8_t r = *src++;
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uint8_t g = *src++;
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uint8_t b = *src++;
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*dest++ = a;
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*dest++ = UnpremultiplyValue(a, r);
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*dest++ = UnpremultiplyValue(a, g);
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*dest++ = UnpremultiplyValue(a, b);
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#endif
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}
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}
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}
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static bool
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MapSrcDest(DataSourceSurface* srcSurf,
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DataSourceSurface* destSurf,
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DataSourceSurface::MappedSurface* out_srcMap,
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DataSourceSurface::MappedSurface* out_destMap)
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{
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MOZ_ASSERT(srcSurf && destSurf);
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MOZ_ASSERT(out_srcMap && out_destMap);
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if (srcSurf->GetFormat() != SurfaceFormat::B8G8R8A8 ||
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destSurf->GetFormat() != SurfaceFormat::B8G8R8A8)
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{
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MOZ_ASSERT(false, "Only operate on BGRA8 surfs.");
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return false;
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}
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if (srcSurf->GetSize().width != destSurf->GetSize().width ||
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srcSurf->GetSize().height != destSurf->GetSize().height)
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{
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MOZ_ASSERT(false, "Width and height must match.");
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return false;
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}
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if (srcSurf == destSurf) {
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DataSourceSurface::MappedSurface map;
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if (!srcSurf->Map(DataSourceSurface::MapType::READ_WRITE, &map)) {
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NS_WARNING("Couldn't Map srcSurf/destSurf.");
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return false;
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}
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*out_srcMap = map;
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*out_destMap = map;
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return true;
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}
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// Map src for reading.
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DataSourceSurface::MappedSurface srcMap;
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if (!srcSurf->Map(DataSourceSurface::MapType::READ, &srcMap)) {
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NS_WARNING("Couldn't Map srcSurf.");
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return false;
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}
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// Map dest for writing.
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DataSourceSurface::MappedSurface destMap;
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if (!destSurf->Map(DataSourceSurface::MapType::WRITE, &destMap)) {
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NS_WARNING("Couldn't Map aDest.");
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srcSurf->Unmap();
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return false;
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}
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*out_srcMap = srcMap;
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*out_destMap = destMap;
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return true;
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}
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static void
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UnmapSrcDest(DataSourceSurface* srcSurf,
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DataSourceSurface* destSurf)
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{
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if (srcSurf == destSurf) {
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srcSurf->Unmap();
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} else {
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srcSurf->Unmap();
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destSurf->Unmap();
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}
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}
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bool
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gfxUtils::PremultiplyDataSurface(DataSourceSurface* srcSurf,
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DataSourceSurface* destSurf)
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{
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MOZ_ASSERT(srcSurf && destSurf);
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DataSourceSurface::MappedSurface srcMap;
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DataSourceSurface::MappedSurface destMap;
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if (!MapSrcDest(srcSurf, destSurf, &srcMap, &destMap))
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return false;
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PremultiplyData(srcMap.mData, srcMap.mStride,
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destMap.mData, destMap.mStride,
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srcSurf->GetSize().width,
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srcSurf->GetSize().height);
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UnmapSrcDest(srcSurf, destSurf);
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return true;
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}
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bool
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gfxUtils::UnpremultiplyDataSurface(DataSourceSurface* srcSurf,
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DataSourceSurface* destSurf)
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{
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MOZ_ASSERT(srcSurf && destSurf);
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DataSourceSurface::MappedSurface srcMap;
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DataSourceSurface::MappedSurface destMap;
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if (!MapSrcDest(srcSurf, destSurf, &srcMap, &destMap))
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return false;
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UnpremultiplyData(srcMap.mData, srcMap.mStride,
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destMap.mData, destMap.mStride,
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srcSurf->GetSize().width,
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srcSurf->GetSize().height);
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UnmapSrcDest(srcSurf, destSurf);
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return true;
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}
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static bool
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MapSrcAndCreateMappedDest(DataSourceSurface* srcSurf,
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RefPtr<DataSourceSurface>* out_destSurf,
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DataSourceSurface::MappedSurface* out_srcMap,
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DataSourceSurface::MappedSurface* out_destMap)
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{
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MOZ_ASSERT(srcSurf);
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MOZ_ASSERT(out_destSurf && out_srcMap && out_destMap);
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if (srcSurf->GetFormat() != SurfaceFormat::B8G8R8A8) {
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MOZ_ASSERT(false, "Only operate on BGRA8.");
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return false;
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}
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// Ok, map source for reading.
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DataSourceSurface::MappedSurface srcMap;
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if (!srcSurf->Map(DataSourceSurface::MapType::READ, &srcMap)) {
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MOZ_ASSERT(false, "Couldn't Map srcSurf.");
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return false;
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}
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// Make our dest surface based on the src.
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RefPtr<DataSourceSurface> destSurf =
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Factory::CreateDataSourceSurfaceWithStride(srcSurf->GetSize(),
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srcSurf->GetFormat(),
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srcMap.mStride);
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if (NS_WARN_IF(!destSurf)) {
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return false;
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}
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DataSourceSurface::MappedSurface destMap;
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if (!destSurf->Map(DataSourceSurface::MapType::WRITE, &destMap)) {
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MOZ_ASSERT(false, "Couldn't Map destSurf.");
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srcSurf->Unmap();
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return false;
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}
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*out_destSurf = destSurf;
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*out_srcMap = srcMap;
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*out_destMap = destMap;
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return true;
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}
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already_AddRefed<DataSourceSurface>
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gfxUtils::CreatePremultipliedDataSurface(DataSourceSurface* srcSurf)
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{
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RefPtr<DataSourceSurface> destSurf;
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DataSourceSurface::MappedSurface srcMap;
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DataSourceSurface::MappedSurface destMap;
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if (!MapSrcAndCreateMappedDest(srcSurf, &destSurf, &srcMap, &destMap)) {
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MOZ_ASSERT(false, "MapSrcAndCreateMappedDest failed.");
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RefPtr<DataSourceSurface> surface(srcSurf);
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return surface.forget();
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}
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PremultiplyData(srcMap.mData, srcMap.mStride,
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destMap.mData, destMap.mStride,
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srcSurf->GetSize().width,
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srcSurf->GetSize().height);
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UnmapSrcDest(srcSurf, destSurf);
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return destSurf.forget();
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}
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already_AddRefed<DataSourceSurface>
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gfxUtils::CreateUnpremultipliedDataSurface(DataSourceSurface* srcSurf)
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{
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RefPtr<DataSourceSurface> destSurf;
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DataSourceSurface::MappedSurface srcMap;
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DataSourceSurface::MappedSurface destMap;
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if (!MapSrcAndCreateMappedDest(srcSurf, &destSurf, &srcMap, &destMap)) {
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MOZ_ASSERT(false, "MapSrcAndCreateMappedDest failed.");
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RefPtr<DataSourceSurface> surface(srcSurf);
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return surface.forget();
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}
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UnpremultiplyData(srcMap.mData, srcMap.mStride,
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destMap.mData, destMap.mStride,
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srcSurf->GetSize().width,
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srcSurf->GetSize().height);
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UnmapSrcDest(srcSurf, destSurf);
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return destSurf.forget();
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}
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void
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gfxUtils::ConvertBGRAtoRGBA(uint8_t* aData, uint32_t aLength)
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{
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MOZ_ASSERT((aLength % 4) == 0, "Loop below will pass srcEnd!");
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uint8_t *src = aData;
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uint8_t *srcEnd = src + aLength;
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uint8_t buffer[4];
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for (; src != srcEnd; src += 4) {
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buffer[0] = src[2];
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buffer[1] = src[1];
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buffer[2] = src[0];
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src[0] = buffer[0];
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src[1] = buffer[1];
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src[2] = buffer[2];
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}
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}
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static bool
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IsSafeImageTransformComponent(gfxFloat aValue)
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{
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return aValue >= -32768 && aValue <= 32767;
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}
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#ifndef MOZ_GFX_OPTIMIZE_MOBILE
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/**
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* This returns the fastest operator to use for solid surfaces which have no
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* alpha channel or their alpha channel is uniformly opaque.
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* This differs per render mode.
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*/
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static gfxContext::GraphicsOperator
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OptimalFillOperator()
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{
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#ifdef XP_WIN
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if (gfxWindowsPlatform::GetPlatform()->GetRenderMode() ==
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gfxWindowsPlatform::RENDER_DIRECT2D) {
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// D2D -really- hates operator source.
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return gfxContext::OPERATOR_OVER;
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} else {
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#endif
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return gfxContext::OPERATOR_SOURCE;
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#ifdef XP_WIN
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}
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#endif
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}
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// EXTEND_PAD won't help us here; we have to create a temporary surface to hold
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// the subimage of pixels we're allowed to sample.
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static already_AddRefed<gfxDrawable>
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CreateSamplingRestrictedDrawable(gfxDrawable* aDrawable,
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gfxContext* aContext,
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const ImageRegion& aRegion,
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const SurfaceFormat aFormat)
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{
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PROFILER_LABEL("gfxUtils", "CreateSamplingRestricedDrawable",
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js::ProfileEntry::Category::GRAPHICS);
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gfxRect clipExtents = aContext->GetClipExtents();
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// Inflate by one pixel because bilinear filtering will sample at most
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// one pixel beyond the computed image pixel coordinate.
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clipExtents.Inflate(1.0);
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gfxRect needed = aRegion.IntersectAndRestrict(clipExtents);
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needed.RoundOut();
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// if 'needed' is empty, nothing will be drawn since aFill
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// must be entirely outside the clip region, so it doesn't
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// matter what we do here, but we should avoid trying to
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// create a zero-size surface.
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if (needed.IsEmpty())
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return nullptr;
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IntSize size(int32_t(needed.Width()), int32_t(needed.Height()));
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RefPtr<DrawTarget> target =
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gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(size, aFormat);
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if (!target) {
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return nullptr;
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}
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nsRefPtr<gfxContext> tmpCtx = new gfxContext(target);
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tmpCtx->SetOperator(OptimalFillOperator());
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aDrawable->Draw(tmpCtx, needed - needed.TopLeft(), true,
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GraphicsFilter::FILTER_FAST, 1.0, gfxMatrix::Translation(needed.TopLeft()));
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RefPtr<SourceSurface> surface = target->Snapshot();
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nsRefPtr<gfxDrawable> drawable = new gfxSurfaceDrawable(surface, size, gfxMatrix::Translation(-needed.TopLeft()));
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return drawable.forget();
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}
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#endif // !MOZ_GFX_OPTIMIZE_MOBILE
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// working around cairo/pixman bug (bug 364968)
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// Our device-space-to-image-space transform may not be acceptable to pixman.
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struct MOZ_STACK_CLASS AutoCairoPixmanBugWorkaround
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{
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AutoCairoPixmanBugWorkaround(gfxContext* aContext,
|
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const gfxMatrix& aDeviceSpaceToImageSpace,
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const gfxRect& aFill,
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const gfxASurface* aSurface)
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: mContext(aContext), mSucceeded(true), mPushedGroup(false)
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{
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// Quartz's limits for matrix are much larger than pixman
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if (!aSurface || aSurface->GetType() == gfxSurfaceType::Quartz)
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return;
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if (!IsSafeImageTransformComponent(aDeviceSpaceToImageSpace._11) ||
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!IsSafeImageTransformComponent(aDeviceSpaceToImageSpace._21) ||
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!IsSafeImageTransformComponent(aDeviceSpaceToImageSpace._12) ||
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!IsSafeImageTransformComponent(aDeviceSpaceToImageSpace._22)) {
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NS_WARNING("Scaling up too much, bailing out");
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mSucceeded = false;
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return;
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}
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|
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if (IsSafeImageTransformComponent(aDeviceSpaceToImageSpace._31) &&
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IsSafeImageTransformComponent(aDeviceSpaceToImageSpace._32))
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return;
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|
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// We'll push a group, which will hopefully reduce our transform's
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// translation so it's in bounds.
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gfxMatrix currentMatrix = mContext->CurrentMatrix();
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mContext->Save();
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// Clip the rounded-out-to-device-pixels bounds of the
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// transformed fill area. This is the area for the group we
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// want to push.
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mContext->SetMatrix(gfxMatrix());
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gfxRect bounds = currentMatrix.TransformBounds(aFill);
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bounds.RoundOut();
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mContext->Clip(bounds);
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mContext->SetMatrix(currentMatrix);
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mContext->PushGroup(gfxContentType::COLOR_ALPHA);
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mContext->SetOperator(gfxContext::OPERATOR_OVER);
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mPushedGroup = true;
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}
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|
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~AutoCairoPixmanBugWorkaround()
|
|
{
|
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if (mPushedGroup) {
|
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mContext->PopGroupToSource();
|
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mContext->Paint();
|
|
mContext->Restore();
|
|
}
|
|
}
|
|
|
|
bool PushedGroup() { return mPushedGroup; }
|
|
bool Succeeded() { return mSucceeded; }
|
|
|
|
private:
|
|
gfxContext* mContext;
|
|
bool mSucceeded;
|
|
bool mPushedGroup;
|
|
};
|
|
|
|
static gfxMatrix
|
|
DeviceToImageTransform(gfxContext* aContext)
|
|
{
|
|
gfxFloat deviceX, deviceY;
|
|
nsRefPtr<gfxASurface> currentTarget =
|
|
aContext->CurrentSurface(&deviceX, &deviceY);
|
|
gfxMatrix deviceToUser = aContext->CurrentMatrix();
|
|
if (!deviceToUser.Invert()) {
|
|
return gfxMatrix(0, 0, 0, 0, 0, 0); // singular
|
|
}
|
|
deviceToUser.Translate(-gfxPoint(-deviceX, -deviceY));
|
|
return deviceToUser;
|
|
}
|
|
|
|
/* These heuristics are based on Source/WebCore/platform/graphics/skia/ImageSkia.cpp:computeResamplingMode() */
|
|
#ifdef MOZ_GFX_OPTIMIZE_MOBILE
|
|
static GraphicsFilter ReduceResamplingFilter(GraphicsFilter aFilter,
|
|
int aImgWidth, int aImgHeight,
|
|
float aSourceWidth, float aSourceHeight)
|
|
{
|
|
// Images smaller than this in either direction are considered "small" and
|
|
// are not resampled ever (see below).
|
|
const int kSmallImageSizeThreshold = 8;
|
|
|
|
// The amount an image can be stretched in a single direction before we
|
|
// say that it is being stretched so much that it must be a line or
|
|
// background that doesn't need resampling.
|
|
const float kLargeStretch = 3.0f;
|
|
|
|
if (aImgWidth <= kSmallImageSizeThreshold
|
|
|| aImgHeight <= kSmallImageSizeThreshold) {
|
|
// Never resample small images. These are often used for borders and
|
|
// rules (think 1x1 images used to make lines).
|
|
return GraphicsFilter::FILTER_NEAREST;
|
|
}
|
|
|
|
if (aImgHeight * kLargeStretch <= aSourceHeight || aImgWidth * kLargeStretch <= aSourceWidth) {
|
|
// Large image tiling detected.
|
|
|
|
// Don't resample if it is being tiled a lot in only one direction.
|
|
// This is trying to catch cases where somebody has created a border
|
|
// (which might be large) and then is stretching it to fill some part
|
|
// of the page.
|
|
if (fabs(aSourceWidth - aImgWidth)/aImgWidth < 0.5 || fabs(aSourceHeight - aImgHeight)/aImgHeight < 0.5)
|
|
return GraphicsFilter::FILTER_NEAREST;
|
|
|
|
// The image is growing a lot and in more than one direction. Resampling
|
|
// is slow and doesn't give us very much when growing a lot.
|
|
return aFilter;
|
|
}
|
|
|
|
/* Some notes on other heuristics:
|
|
The Skia backend also uses nearest for backgrounds that are stretched by
|
|
a large amount. I'm not sure this is common enough for us to worry about
|
|
now. It also uses nearest for backgrounds/avoids high quality for images
|
|
that are very slightly scaled. I'm also not sure that very slightly
|
|
scaled backgrounds are common enough us to worry about.
|
|
|
|
We don't currently have much support for doing high quality interpolation.
|
|
The only place this currently happens is on Quartz and we don't have as
|
|
much control over it as would be needed. Webkit avoids using high quality
|
|
resampling during load. It also avoids high quality if the transformation
|
|
is not just a scale and translation
|
|
|
|
WebKit bug #40045 added code to avoid resampling different parts
|
|
of an image with different methods by using a resampling hint size.
|
|
It currently looks unused in WebKit but it's something to watch out for.
|
|
*/
|
|
|
|
return aFilter;
|
|
}
|
|
#else
|
|
static GraphicsFilter ReduceResamplingFilter(GraphicsFilter aFilter,
|
|
int aImgWidth, int aImgHeight,
|
|
int aSourceWidth, int aSourceHeight)
|
|
{
|
|
// Just pass the filter through unchanged
|
|
return aFilter;
|
|
}
|
|
#endif
|
|
|
|
#ifdef MOZ_WIDGET_COCOA
|
|
// Only prescale a temporary surface if we're going to repeat it often.
|
|
// Scaling is expensive on OS X and without prescaling, we'd scale
|
|
// every tile of the repeated rect. However, using a temp surface also potentially uses
|
|
// more memory if the scaled image is large. So only prescale on a temp
|
|
// surface if we know we're going to repeat the image in either the X or Y axis
|
|
// multiple times.
|
|
static bool
|
|
ShouldUseTempSurface(Rect aImageRect, Rect aNeededRect)
|
|
{
|
|
int repeatX = aNeededRect.width / aImageRect.width;
|
|
int repeatY = aNeededRect.height / aImageRect.height;
|
|
return (repeatX >= 5) || (repeatY >= 5);
|
|
}
|
|
|
|
static bool
|
|
PrescaleAndTileDrawable(gfxDrawable* aDrawable,
|
|
gfxContext* aContext,
|
|
const ImageRegion& aRegion,
|
|
Rect aImageRect,
|
|
const GraphicsFilter& aFilter,
|
|
const SurfaceFormat aFormat,
|
|
gfxFloat aOpacity)
|
|
{
|
|
gfxSize scaleFactor = aContext->CurrentMatrix().ScaleFactors(true);
|
|
gfxMatrix scaleMatrix = gfxMatrix::Scaling(scaleFactor.width, scaleFactor.height);
|
|
const float fuzzFactor = 0.01;
|
|
|
|
// If we aren't scaling or translating, don't go down this path
|
|
if ((FuzzyEqual(scaleFactor.width, 1.0, fuzzFactor) &&
|
|
FuzzyEqual(scaleFactor.width, 1.0, fuzzFactor)) ||
|
|
aContext->CurrentMatrix().HasNonAxisAlignedTransform()) {
|
|
return false;
|
|
}
|
|
|
|
gfxRect clipExtents = aContext->GetClipExtents();
|
|
|
|
// Inflate by one pixel because bilinear filtering will sample at most
|
|
// one pixel beyond the computed image pixel coordinate.
|
|
clipExtents.Inflate(1.0);
|
|
|
|
gfxRect needed = aRegion.IntersectAndRestrict(clipExtents);
|
|
Rect scaledNeededRect = ToMatrix(scaleMatrix).TransformBounds(ToRect(needed));
|
|
scaledNeededRect.RoundOut();
|
|
if (scaledNeededRect.IsEmpty()) {
|
|
return false;
|
|
}
|
|
|
|
Rect scaledImageRect = ToMatrix(scaleMatrix).TransformBounds(aImageRect);
|
|
if (!ShouldUseTempSurface(scaledImageRect, scaledNeededRect)) {
|
|
return false;
|
|
}
|
|
|
|
gfxIntSize scaledImageSize((int32_t)scaledImageRect.width,
|
|
(int32_t)scaledImageRect.height);
|
|
if (scaledImageSize.width != scaledImageRect.width ||
|
|
scaledImageSize.height != scaledImageRect.height) {
|
|
// If the scaled image isn't pixel aligned, we'll get artifacts
|
|
// so we have to take the slow path.
|
|
return false;
|
|
}
|
|
|
|
RefPtr<DrawTarget> scaledDT =
|
|
gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(scaledImageSize, aFormat);
|
|
if (!scaledDT) {
|
|
return false;
|
|
}
|
|
|
|
nsRefPtr<gfxContext> tmpCtx = new gfxContext(scaledDT);
|
|
scaledDT->SetTransform(ToMatrix(scaleMatrix));
|
|
gfxRect gfxImageRect(aImageRect.x, aImageRect.y, aImageRect.width, aImageRect.height);
|
|
aDrawable->Draw(tmpCtx, gfxImageRect, true, aFilter, 1.0, gfxMatrix());
|
|
|
|
RefPtr<SourceSurface> scaledImage = scaledDT->Snapshot();
|
|
|
|
{
|
|
gfxContextMatrixAutoSaveRestore autoSR(aContext);
|
|
Matrix withoutScale = ToMatrix(aContext->CurrentMatrix());
|
|
DrawTarget* destDrawTarget = aContext->GetDrawTarget();
|
|
|
|
// The translation still is in scaled units
|
|
withoutScale.PreScale(1.0 / scaleFactor.width, 1.0 / scaleFactor.height);
|
|
aContext->SetMatrix(ThebesMatrix(withoutScale));
|
|
|
|
DrawOptions drawOptions(aOpacity,
|
|
CompositionOpForOp(aContext->CurrentOperator()),
|
|
aContext->CurrentAntialiasMode());
|
|
|
|
SurfacePattern scaledImagePattern(scaledImage, ExtendMode::REPEAT,
|
|
Matrix(), ToFilter(aFilter));
|
|
destDrawTarget->FillRect(scaledNeededRect, scaledImagePattern, drawOptions);
|
|
}
|
|
return true;
|
|
}
|
|
#endif // MOZ_WIDGET_COCOA
|
|
|
|
/* static */ void
|
|
gfxUtils::DrawPixelSnapped(gfxContext* aContext,
|
|
gfxDrawable* aDrawable,
|
|
const gfxSize& aImageSize,
|
|
const ImageRegion& aRegion,
|
|
const SurfaceFormat aFormat,
|
|
GraphicsFilter aFilter,
|
|
uint32_t aImageFlags,
|
|
gfxFloat aOpacity)
|
|
{
|
|
PROFILER_LABEL("gfxUtils", "DrawPixelSnapped",
|
|
js::ProfileEntry::Category::GRAPHICS);
|
|
|
|
gfxRect imageRect(gfxPoint(0, 0), aImageSize);
|
|
gfxRect region(aRegion.Rect());
|
|
|
|
bool doTile = !imageRect.Contains(region) &&
|
|
!(aImageFlags & imgIContainer::FLAG_CLAMP);
|
|
|
|
nsRefPtr<gfxASurface> currentTarget = aContext->CurrentSurface();
|
|
gfxMatrix deviceSpaceToImageSpace = DeviceToImageTransform(aContext);
|
|
|
|
AutoCairoPixmanBugWorkaround workaround(aContext, deviceSpaceToImageSpace,
|
|
region, currentTarget);
|
|
if (!workaround.Succeeded())
|
|
return;
|
|
|
|
nsRefPtr<gfxDrawable> drawable = aDrawable;
|
|
|
|
aFilter = ReduceResamplingFilter(aFilter,
|
|
imageRect.Width(), imageRect.Height(),
|
|
region.Width(), region.Height());
|
|
|
|
// OK now, the hard part left is to account for the subimage sampling
|
|
// restriction. If all the transforms involved are just integer
|
|
// translations, then we assume no resampling will occur so there's
|
|
// nothing to do.
|
|
// XXX if only we had source-clipping in cairo!
|
|
if (aContext->CurrentMatrix().HasNonIntegerTranslation()) {
|
|
if (doTile || !aRegion.RestrictionContains(imageRect)) {
|
|
if (drawable->DrawWithSamplingRect(aContext, aRegion.Rect(), aRegion.Restriction(),
|
|
doTile, aFilter, aOpacity)) {
|
|
return;
|
|
}
|
|
|
|
#ifdef MOZ_WIDGET_COCOA
|
|
if (PrescaleAndTileDrawable(aDrawable, aContext, aRegion,
|
|
ToRect(imageRect), aFilter,
|
|
aFormat, aOpacity)) {
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
// On Mobile, we don't ever want to do this; it has the potential for
|
|
// allocating very large temporary surfaces, especially since we'll
|
|
// do full-page snapshots often (see bug 749426).
|
|
#ifndef MOZ_GFX_OPTIMIZE_MOBILE
|
|
nsRefPtr<gfxDrawable> restrictedDrawable =
|
|
CreateSamplingRestrictedDrawable(aDrawable, aContext,
|
|
aRegion, aFormat);
|
|
if (restrictedDrawable) {
|
|
drawable.swap(restrictedDrawable);
|
|
}
|
|
|
|
// We no longer need to tile: Either we never needed to, or we already
|
|
// filled a surface with the tiled pattern; this surface can now be
|
|
// drawn without tiling.
|
|
doTile = false;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
drawable->Draw(aContext, aRegion.Rect(), doTile, aFilter, aOpacity);
|
|
}
|
|
|
|
/* static */ int
|
|
gfxUtils::ImageFormatToDepth(gfxImageFormat aFormat)
|
|
{
|
|
switch (aFormat) {
|
|
case gfxImageFormat::ARGB32:
|
|
return 32;
|
|
case gfxImageFormat::RGB24:
|
|
return 24;
|
|
case gfxImageFormat::RGB16_565:
|
|
return 16;
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
PathFromRegionInternal(gfxContext* aContext, const nsIntRegion& aRegion)
|
|
{
|
|
aContext->NewPath();
|
|
nsIntRegionRectIterator iter(aRegion);
|
|
const IntRect* r;
|
|
while ((r = iter.Next()) != nullptr) {
|
|
aContext->Rectangle(gfxRect(r->x, r->y, r->width, r->height));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ClipToRegionInternal(gfxContext* aContext, const nsIntRegion& aRegion)
|
|
{
|
|
PathFromRegionInternal(aContext, aRegion);
|
|
aContext->Clip();
|
|
}
|
|
|
|
static already_AddRefed<Path>
|
|
PathFromRegionInternal(DrawTarget* aTarget, const nsIntRegion& aRegion)
|
|
{
|
|
RefPtr<PathBuilder> pb = aTarget->CreatePathBuilder();
|
|
nsIntRegionRectIterator iter(aRegion);
|
|
|
|
const IntRect* r;
|
|
while ((r = iter.Next()) != nullptr) {
|
|
pb->MoveTo(Point(r->x, r->y));
|
|
pb->LineTo(Point(r->XMost(), r->y));
|
|
pb->LineTo(Point(r->XMost(), r->YMost()));
|
|
pb->LineTo(Point(r->x, r->YMost()));
|
|
pb->Close();
|
|
}
|
|
return pb->Finish();
|
|
}
|
|
|
|
static void
|
|
ClipToRegionInternal(DrawTarget* aTarget, const nsIntRegion& aRegion)
|
|
{
|
|
if (!aRegion.IsComplex()) {
|
|
IntRect rect = aRegion.GetBounds();
|
|
aTarget->PushClipRect(Rect(rect.x, rect.y, rect.width, rect.height));
|
|
return;
|
|
}
|
|
|
|
RefPtr<Path> path = PathFromRegionInternal(aTarget, aRegion);
|
|
aTarget->PushClip(path);
|
|
}
|
|
|
|
/*static*/ void
|
|
gfxUtils::ClipToRegion(gfxContext* aContext, const nsIntRegion& aRegion)
|
|
{
|
|
ClipToRegionInternal(aContext, aRegion);
|
|
}
|
|
|
|
/*static*/ void
|
|
gfxUtils::ClipToRegion(DrawTarget* aTarget, const nsIntRegion& aRegion)
|
|
{
|
|
ClipToRegionInternal(aTarget, aRegion);
|
|
}
|
|
|
|
/*static*/ gfxFloat
|
|
gfxUtils::ClampToScaleFactor(gfxFloat aVal)
|
|
{
|
|
// Arbitary scale factor limitation. We can increase this
|
|
// for better scaling performance at the cost of worse
|
|
// quality.
|
|
static const gfxFloat kScaleResolution = 2;
|
|
|
|
// Negative scaling is just a flip and irrelevant to
|
|
// our resolution calculation.
|
|
if (aVal < 0.0) {
|
|
aVal = -aVal;
|
|
}
|
|
|
|
bool inverse = false;
|
|
if (aVal < 1.0) {
|
|
inverse = true;
|
|
aVal = 1 / aVal;
|
|
}
|
|
|
|
gfxFloat power = log(aVal)/log(kScaleResolution);
|
|
|
|
// If power is within 1e-5 of an integer, round to nearest to
|
|
// prevent floating point errors, otherwise round up to the
|
|
// next integer value.
|
|
if (fabs(power - NS_round(power)) < 1e-5) {
|
|
power = NS_round(power);
|
|
} else if (inverse) {
|
|
power = floor(power);
|
|
} else {
|
|
power = ceil(power);
|
|
}
|
|
|
|
gfxFloat scale = pow(kScaleResolution, power);
|
|
|
|
if (inverse) {
|
|
scale = 1 / scale;
|
|
}
|
|
|
|
return scale;
|
|
}
|
|
|
|
|
|
/*static*/ void
|
|
gfxUtils::PathFromRegion(gfxContext* aContext, const nsIntRegion& aRegion)
|
|
{
|
|
PathFromRegionInternal(aContext, aRegion);
|
|
}
|
|
|
|
gfxMatrix
|
|
gfxUtils::TransformRectToRect(const gfxRect& aFrom, const gfxPoint& aToTopLeft,
|
|
const gfxPoint& aToTopRight, const gfxPoint& aToBottomRight)
|
|
{
|
|
gfxMatrix m;
|
|
if (aToTopRight.y == aToTopLeft.y && aToTopRight.x == aToBottomRight.x) {
|
|
// Not a rotation, so xy and yx are zero
|
|
m._21 = m._12 = 0.0;
|
|
m._11 = (aToBottomRight.x - aToTopLeft.x)/aFrom.width;
|
|
m._22 = (aToBottomRight.y - aToTopLeft.y)/aFrom.height;
|
|
m._31 = aToTopLeft.x - m._11*aFrom.x;
|
|
m._32 = aToTopLeft.y - m._22*aFrom.y;
|
|
} else {
|
|
NS_ASSERTION(aToTopRight.y == aToBottomRight.y && aToTopRight.x == aToTopLeft.x,
|
|
"Destination rectangle not axis-aligned");
|
|
m._11 = m._22 = 0.0;
|
|
m._21 = (aToBottomRight.x - aToTopLeft.x)/aFrom.height;
|
|
m._12 = (aToBottomRight.y - aToTopLeft.y)/aFrom.width;
|
|
m._31 = aToTopLeft.x - m._21*aFrom.y;
|
|
m._32 = aToTopLeft.y - m._12*aFrom.x;
|
|
}
|
|
return m;
|
|
}
|
|
|
|
Matrix
|
|
gfxUtils::TransformRectToRect(const gfxRect& aFrom, const IntPoint& aToTopLeft,
|
|
const IntPoint& aToTopRight, const IntPoint& aToBottomRight)
|
|
{
|
|
Matrix m;
|
|
if (aToTopRight.y == aToTopLeft.y && aToTopRight.x == aToBottomRight.x) {
|
|
// Not a rotation, so xy and yx are zero
|
|
m._12 = m._21 = 0.0;
|
|
m._11 = (aToBottomRight.x - aToTopLeft.x)/aFrom.width;
|
|
m._22 = (aToBottomRight.y - aToTopLeft.y)/aFrom.height;
|
|
m._31 = aToTopLeft.x - m._11*aFrom.x;
|
|
m._32 = aToTopLeft.y - m._22*aFrom.y;
|
|
} else {
|
|
NS_ASSERTION(aToTopRight.y == aToBottomRight.y && aToTopRight.x == aToTopLeft.x,
|
|
"Destination rectangle not axis-aligned");
|
|
m._11 = m._22 = 0.0;
|
|
m._21 = (aToBottomRight.x - aToTopLeft.x)/aFrom.height;
|
|
m._12 = (aToBottomRight.y - aToTopLeft.y)/aFrom.width;
|
|
m._31 = aToTopLeft.x - m._21*aFrom.y;
|
|
m._32 = aToTopLeft.y - m._12*aFrom.x;
|
|
}
|
|
return m;
|
|
}
|
|
|
|
/* This function is sort of shitty. We truncate doubles
|
|
* to ints then convert those ints back to doubles to make sure that
|
|
* they equal the doubles that we got in. */
|
|
bool
|
|
gfxUtils::GfxRectToIntRect(const gfxRect& aIn, IntRect* aOut)
|
|
{
|
|
*aOut = IntRect(int32_t(aIn.X()), int32_t(aIn.Y()),
|
|
int32_t(aIn.Width()), int32_t(aIn.Height()));
|
|
return gfxRect(aOut->x, aOut->y, aOut->width, aOut->height).IsEqualEdges(aIn);
|
|
}
|
|
|
|
void
|
|
gfxUtils::GetYCbCrToRGBDestFormatAndSize(const PlanarYCbCrData& aData,
|
|
gfxImageFormat& aSuggestedFormat,
|
|
IntSize& aSuggestedSize)
|
|
{
|
|
YUVType yuvtype =
|
|
TypeFromSize(aData.mYSize.width,
|
|
aData.mYSize.height,
|
|
aData.mCbCrSize.width,
|
|
aData.mCbCrSize.height);
|
|
|
|
// 'prescale' is true if the scaling is to be done as part of the
|
|
// YCbCr to RGB conversion rather than on the RGB data when rendered.
|
|
bool prescale = aSuggestedSize.width > 0 && aSuggestedSize.height > 0 &&
|
|
aSuggestedSize != aData.mPicSize;
|
|
|
|
if (aSuggestedFormat == gfxImageFormat::RGB16_565) {
|
|
#if defined(HAVE_YCBCR_TO_RGB565)
|
|
if (prescale &&
|
|
!IsScaleYCbCrToRGB565Fast(aData.mPicX,
|
|
aData.mPicY,
|
|
aData.mPicSize.width,
|
|
aData.mPicSize.height,
|
|
aSuggestedSize.width,
|
|
aSuggestedSize.height,
|
|
yuvtype,
|
|
FILTER_BILINEAR) &&
|
|
IsConvertYCbCrToRGB565Fast(aData.mPicX,
|
|
aData.mPicY,
|
|
aData.mPicSize.width,
|
|
aData.mPicSize.height,
|
|
yuvtype)) {
|
|
prescale = false;
|
|
}
|
|
#else
|
|
// yuv2rgb16 function not available
|
|
aSuggestedFormat = gfxImageFormat::RGB24;
|
|
#endif
|
|
}
|
|
else if (aSuggestedFormat != gfxImageFormat::RGB24) {
|
|
// No other formats are currently supported.
|
|
aSuggestedFormat = gfxImageFormat::RGB24;
|
|
}
|
|
if (aSuggestedFormat == gfxImageFormat::RGB24) {
|
|
/* ScaleYCbCrToRGB32 does not support a picture offset, nor 4:4:4 data.
|
|
See bugs 639415 and 640073. */
|
|
if (aData.mPicX != 0 || aData.mPicY != 0 || yuvtype == YV24)
|
|
prescale = false;
|
|
}
|
|
if (!prescale) {
|
|
aSuggestedSize = aData.mPicSize;
|
|
}
|
|
}
|
|
|
|
void
|
|
gfxUtils::ConvertYCbCrToRGB(const PlanarYCbCrData& aData,
|
|
const gfxImageFormat& aDestFormat,
|
|
const IntSize& aDestSize,
|
|
unsigned char* aDestBuffer,
|
|
int32_t aStride)
|
|
{
|
|
// ConvertYCbCrToRGB et al. assume the chroma planes are rounded up if the
|
|
// luma plane is odd sized.
|
|
MOZ_ASSERT((aData.mCbCrSize.width == aData.mYSize.width ||
|
|
aData.mCbCrSize.width == (aData.mYSize.width + 1) >> 1) &&
|
|
(aData.mCbCrSize.height == aData.mYSize.height ||
|
|
aData.mCbCrSize.height == (aData.mYSize.height + 1) >> 1));
|
|
YUVType yuvtype =
|
|
TypeFromSize(aData.mYSize.width,
|
|
aData.mYSize.height,
|
|
aData.mCbCrSize.width,
|
|
aData.mCbCrSize.height);
|
|
|
|
// Convert from YCbCr to RGB now, scaling the image if needed.
|
|
if (aDestSize != aData.mPicSize) {
|
|
#if defined(HAVE_YCBCR_TO_RGB565)
|
|
if (aDestFormat == gfxImageFormat::RGB16_565) {
|
|
ScaleYCbCrToRGB565(aData.mYChannel,
|
|
aData.mCbChannel,
|
|
aData.mCrChannel,
|
|
aDestBuffer,
|
|
aData.mPicX,
|
|
aData.mPicY,
|
|
aData.mPicSize.width,
|
|
aData.mPicSize.height,
|
|
aDestSize.width,
|
|
aDestSize.height,
|
|
aData.mYStride,
|
|
aData.mCbCrStride,
|
|
aStride,
|
|
yuvtype,
|
|
FILTER_BILINEAR);
|
|
} else
|
|
#endif
|
|
ScaleYCbCrToRGB32(aData.mYChannel,
|
|
aData.mCbChannel,
|
|
aData.mCrChannel,
|
|
aDestBuffer,
|
|
aData.mPicSize.width,
|
|
aData.mPicSize.height,
|
|
aDestSize.width,
|
|
aDestSize.height,
|
|
aData.mYStride,
|
|
aData.mCbCrStride,
|
|
aStride,
|
|
yuvtype,
|
|
ROTATE_0,
|
|
FILTER_BILINEAR);
|
|
} else { // no prescale
|
|
#if defined(HAVE_YCBCR_TO_RGB565)
|
|
if (aDestFormat == gfxImageFormat::RGB16_565) {
|
|
ConvertYCbCrToRGB565(aData.mYChannel,
|
|
aData.mCbChannel,
|
|
aData.mCrChannel,
|
|
aDestBuffer,
|
|
aData.mPicX,
|
|
aData.mPicY,
|
|
aData.mPicSize.width,
|
|
aData.mPicSize.height,
|
|
aData.mYStride,
|
|
aData.mCbCrStride,
|
|
aStride,
|
|
yuvtype);
|
|
} else // aDestFormat != gfxImageFormat::RGB16_565
|
|
#endif
|
|
ConvertYCbCrToRGB32(aData.mYChannel,
|
|
aData.mCbChannel,
|
|
aData.mCrChannel,
|
|
aDestBuffer,
|
|
aData.mPicX,
|
|
aData.mPicY,
|
|
aData.mPicSize.width,
|
|
aData.mPicSize.height,
|
|
aData.mYStride,
|
|
aData.mCbCrStride,
|
|
aStride,
|
|
yuvtype);
|
|
}
|
|
}
|
|
|
|
/* static */ void gfxUtils::ClearThebesSurface(gfxASurface* aSurface,
|
|
IntRect* aRect,
|
|
const gfxRGBA& aColor)
|
|
{
|
|
if (aSurface->CairoStatus()) {
|
|
return;
|
|
}
|
|
cairo_surface_t* surf = aSurface->CairoSurface();
|
|
if (cairo_surface_status(surf)) {
|
|
return;
|
|
}
|
|
cairo_t* ctx = cairo_create(surf);
|
|
cairo_set_source_rgba(ctx, aColor.r, aColor.g, aColor.b, aColor.a);
|
|
cairo_set_operator(ctx, CAIRO_OPERATOR_SOURCE);
|
|
IntRect bounds;
|
|
if (aRect) {
|
|
bounds = *aRect;
|
|
} else {
|
|
bounds = IntRect(nsIntPoint(0, 0), aSurface->GetSize());
|
|
}
|
|
cairo_rectangle(ctx, bounds.x, bounds.y, bounds.width, bounds.height);
|
|
cairo_fill(ctx);
|
|
cairo_destroy(ctx);
|
|
}
|
|
|
|
/* static */ already_AddRefed<DataSourceSurface>
|
|
gfxUtils::CopySurfaceToDataSourceSurfaceWithFormat(SourceSurface* aSurface,
|
|
SurfaceFormat aFormat)
|
|
{
|
|
MOZ_ASSERT(aFormat != aSurface->GetFormat(),
|
|
"Unnecessary - and very expersive - surface format conversion");
|
|
|
|
Rect bounds(0, 0, aSurface->GetSize().width, aSurface->GetSize().height);
|
|
|
|
if (aSurface->GetType() != SurfaceType::DATA) {
|
|
// If the surface is NOT of type DATA then its data is not mapped into main
|
|
// memory. Format conversion is probably faster on the GPU, and by doing it
|
|
// there we can avoid any expensive uploads/readbacks except for (possibly)
|
|
// a single readback due to the unavoidable GetDataSurface() call. Using
|
|
// CreateOffscreenContentDrawTarget ensures the conversion happens on the
|
|
// GPU.
|
|
RefPtr<DrawTarget> dt = gfxPlatform::GetPlatform()->
|
|
CreateOffscreenContentDrawTarget(aSurface->GetSize(), aFormat);
|
|
if (!dt) {
|
|
gfxWarning() << "gfxUtils::CopySurfaceToDataSourceSurfaceWithFormat failed in CreateOffscreenContentDrawTarget";
|
|
return nullptr;
|
|
}
|
|
|
|
// Using DrawSurface() here rather than CopySurface() because CopySurface
|
|
// is optimized for memcpy and therefore isn't good for format conversion.
|
|
// Using OP_OVER since in our case it's equivalent to OP_SOURCE and
|
|
// generally more optimized.
|
|
dt->DrawSurface(aSurface, bounds, bounds, DrawSurfaceOptions(),
|
|
DrawOptions(1.0f, CompositionOp::OP_OVER));
|
|
RefPtr<SourceSurface> surface = dt->Snapshot();
|
|
return surface->GetDataSurface();
|
|
}
|
|
|
|
// If the surface IS of type DATA then it may or may not be in main memory
|
|
// depending on whether or not it has been mapped yet. We have no way of
|
|
// knowing, so we can't be sure if it's best to create a data wrapping
|
|
// DrawTarget for the conversion or an offscreen content DrawTarget. We could
|
|
// guess it's not mapped and create an offscreen content DrawTarget, but if
|
|
// it is then we'll end up uploading the surface data, and most likely the
|
|
// caller is going to be accessing the resulting surface data, resulting in a
|
|
// readback (both very expensive operations). Alternatively we could guess
|
|
// the data is mapped and create a data wrapping DrawTarget and, if the
|
|
// surface is not in main memory, then we will incure a readback. The latter
|
|
// of these two "wrong choices" is the least costly (a readback, vs an
|
|
// upload and a readback), and more than likely the DATA surface that we've
|
|
// been passed actually IS in main memory anyway. For these reasons it's most
|
|
// likely best to create a data wrapping DrawTarget here to do the format
|
|
// conversion.
|
|
RefPtr<DataSourceSurface> dataSurface =
|
|
Factory::CreateDataSourceSurface(aSurface->GetSize(), aFormat);
|
|
DataSourceSurface::MappedSurface map;
|
|
if (!dataSurface ||
|
|
!dataSurface->Map(DataSourceSurface::MapType::READ_WRITE, &map)) {
|
|
return nullptr;
|
|
}
|
|
RefPtr<DrawTarget> dt =
|
|
Factory::CreateDrawTargetForData(BackendType::CAIRO,
|
|
map.mData,
|
|
dataSurface->GetSize(),
|
|
map.mStride,
|
|
aFormat);
|
|
if (!dt) {
|
|
dataSurface->Unmap();
|
|
return nullptr;
|
|
}
|
|
// Using DrawSurface() here rather than CopySurface() because CopySurface
|
|
// is optimized for memcpy and therefore isn't good for format conversion.
|
|
// Using OP_OVER since in our case it's equivalent to OP_SOURCE and
|
|
// generally more optimized.
|
|
dt->DrawSurface(aSurface, bounds, bounds, DrawSurfaceOptions(),
|
|
DrawOptions(1.0f, CompositionOp::OP_OVER));
|
|
dataSurface->Unmap();
|
|
return dataSurface.forget();
|
|
}
|
|
|
|
const uint32_t gfxUtils::sNumFrameColors = 8;
|
|
|
|
/* static */ const gfx::Color&
|
|
gfxUtils::GetColorForFrameNumber(uint64_t aFrameNumber)
|
|
{
|
|
static bool initialized = false;
|
|
static gfx::Color colors[sNumFrameColors];
|
|
|
|
if (!initialized) {
|
|
uint32_t i = 0;
|
|
colors[i++] = gfx::Color::FromABGR(0xffff0000);
|
|
colors[i++] = gfx::Color::FromABGR(0xffcc00ff);
|
|
colors[i++] = gfx::Color::FromABGR(0xff0066cc);
|
|
colors[i++] = gfx::Color::FromABGR(0xff00ff00);
|
|
colors[i++] = gfx::Color::FromABGR(0xff33ffff);
|
|
colors[i++] = gfx::Color::FromABGR(0xffff0099);
|
|
colors[i++] = gfx::Color::FromABGR(0xff0000ff);
|
|
colors[i++] = gfx::Color::FromABGR(0xff999999);
|
|
MOZ_ASSERT(i == sNumFrameColors);
|
|
initialized = true;
|
|
}
|
|
|
|
return colors[aFrameNumber % sNumFrameColors];
|
|
}
|
|
|
|
static nsresult
|
|
EncodeSourceSurfaceInternal(SourceSurface* aSurface,
|
|
const nsACString& aMimeType,
|
|
const nsAString& aOutputOptions,
|
|
gfxUtils::BinaryOrData aBinaryOrData,
|
|
FILE* aFile,
|
|
nsCString* aStrOut)
|
|
{
|
|
MOZ_ASSERT(aBinaryOrData == gfxUtils::eDataURIEncode || aFile || aStrOut,
|
|
"Copying binary encoding to clipboard not currently supported");
|
|
|
|
const IntSize size = aSurface->GetSize();
|
|
if (size.IsEmpty()) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
const Size floatSize(size.width, size.height);
|
|
|
|
RefPtr<DataSourceSurface> dataSurface;
|
|
if (aSurface->GetFormat() != SurfaceFormat::B8G8R8A8) {
|
|
// FIXME bug 995807 (B8G8R8X8), bug 831898 (R5G6B5)
|
|
dataSurface =
|
|
gfxUtils::CopySurfaceToDataSourceSurfaceWithFormat(aSurface,
|
|
SurfaceFormat::B8G8R8A8);
|
|
} else {
|
|
dataSurface = aSurface->GetDataSurface();
|
|
}
|
|
if (!dataSurface) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
DataSourceSurface::MappedSurface map;
|
|
if (!dataSurface->Map(DataSourceSurface::MapType::READ, &map)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsAutoCString encoderCID(
|
|
NS_LITERAL_CSTRING("@mozilla.org/image/encoder;2?type=") + aMimeType);
|
|
nsCOMPtr<imgIEncoder> encoder = do_CreateInstance(encoderCID.get());
|
|
if (!encoder) {
|
|
#ifdef DEBUG
|
|
int32_t w = std::min(size.width, 8);
|
|
int32_t h = std::min(size.height, 8);
|
|
printf("Could not create encoder. Top-left %dx%d pixels contain:\n", w, h);
|
|
for (int32_t y = 0; y < h; ++y) {
|
|
for (int32_t x = 0; x < w; ++x) {
|
|
printf("%x ", reinterpret_cast<uint32_t*>(map.mData)[y*map.mStride+x]);
|
|
}
|
|
}
|
|
#endif
|
|
dataSurface->Unmap();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult rv = encoder->InitFromData(map.mData,
|
|
BufferSizeFromStrideAndHeight(map.mStride, size.height),
|
|
size.width,
|
|
size.height,
|
|
map.mStride,
|
|
imgIEncoder::INPUT_FORMAT_HOSTARGB,
|
|
aOutputOptions);
|
|
dataSurface->Unmap();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIInputStream> imgStream;
|
|
CallQueryInterface(encoder.get(), getter_AddRefs(imgStream));
|
|
if (!imgStream) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
uint64_t bufSize64;
|
|
rv = imgStream->Available(&bufSize64);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
NS_ENSURE_TRUE(bufSize64 < UINT32_MAX - 16, NS_ERROR_FAILURE);
|
|
|
|
uint32_t bufSize = (uint32_t)bufSize64;
|
|
|
|
// ...leave a little extra room so we can call read again and make sure we
|
|
// got everything. 16 bytes for better padding (maybe)
|
|
bufSize += 16;
|
|
uint32_t imgSize = 0;
|
|
Vector<char> imgData;
|
|
if (!imgData.initCapacity(bufSize)) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
uint32_t numReadThisTime = 0;
|
|
while ((rv = imgStream->Read(imgData.begin() + imgSize,
|
|
bufSize - imgSize,
|
|
&numReadThisTime)) == NS_OK && numReadThisTime > 0)
|
|
{
|
|
// Update the length of the vector without overwriting the new data.
|
|
imgData.growByUninitialized(numReadThisTime);
|
|
|
|
imgSize += numReadThisTime;
|
|
if (imgSize == bufSize) {
|
|
// need a bigger buffer, just double
|
|
bufSize *= 2;
|
|
if (!imgData.resizeUninitialized(bufSize)) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
}
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_ENSURE_TRUE(!imgData.empty(), NS_ERROR_FAILURE);
|
|
|
|
if (aBinaryOrData == gfxUtils::eBinaryEncode) {
|
|
if (aFile) {
|
|
fwrite(imgData.begin(), 1, imgSize, aFile);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// base 64, result will be null-terminated
|
|
nsCString encodedImg;
|
|
rv = Base64Encode(Substring(imgData.begin(), imgSize), encodedImg);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCString string("data:");
|
|
string.Append(aMimeType);
|
|
string.Append(";base64,");
|
|
string.Append(encodedImg);
|
|
|
|
if (aFile) {
|
|
#ifdef ANDROID
|
|
if (aFile == stdout || aFile == stderr) {
|
|
// ADB logcat cuts off long strings so we will break it down
|
|
const char* cStr = string.BeginReading();
|
|
size_t len = strlen(cStr);
|
|
while (true) {
|
|
printf_stderr("IMG: %.140s\n", cStr);
|
|
if (len <= 140)
|
|
break;
|
|
len -= 140;
|
|
cStr += 140;
|
|
}
|
|
}
|
|
#endif
|
|
fprintf(aFile, "%s", string.BeginReading());
|
|
} else if (aStrOut) {
|
|
*aStrOut = string;
|
|
} else {
|
|
nsCOMPtr<nsIClipboardHelper> clipboard(do_GetService("@mozilla.org/widget/clipboardhelper;1", &rv));
|
|
if (clipboard) {
|
|
clipboard->CopyString(NS_ConvertASCIItoUTF16(string));
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
static nsCString
|
|
EncodeSourceSurfaceAsPNGURI(SourceSurface* aSurface)
|
|
{
|
|
nsCString string;
|
|
EncodeSourceSurfaceInternal(aSurface, NS_LITERAL_CSTRING("image/png"),
|
|
EmptyString(), gfxUtils::eDataURIEncode,
|
|
nullptr, &string);
|
|
return string;
|
|
}
|
|
|
|
/* static */ nsresult
|
|
gfxUtils::EncodeSourceSurface(SourceSurface* aSurface,
|
|
const nsACString& aMimeType,
|
|
const nsAString& aOutputOptions,
|
|
BinaryOrData aBinaryOrData,
|
|
FILE* aFile)
|
|
{
|
|
return EncodeSourceSurfaceInternal(aSurface, aMimeType, aOutputOptions,
|
|
aBinaryOrData, aFile, nullptr);
|
|
}
|
|
|
|
/* static */ void
|
|
gfxUtils::WriteAsPNG(SourceSurface* aSurface, const nsAString& aFile)
|
|
{
|
|
WriteAsPNG(aSurface, NS_ConvertUTF16toUTF8(aFile).get());
|
|
}
|
|
|
|
/* static */ void
|
|
gfxUtils::WriteAsPNG(SourceSurface* aSurface, const char* aFile)
|
|
{
|
|
FILE* file = fopen(aFile, "wb");
|
|
|
|
if (!file) {
|
|
// Maybe the directory doesn't exist; try creating it, then fopen again.
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
nsCOMPtr<nsIFile> comFile = do_CreateInstance("@mozilla.org/file/local;1");
|
|
if (comFile) {
|
|
NS_ConvertUTF8toUTF16 utf16path((nsDependentCString(aFile)));
|
|
rv = comFile->InitWithPath(utf16path);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsCOMPtr<nsIFile> dirPath;
|
|
comFile->GetParent(getter_AddRefs(dirPath));
|
|
if (dirPath) {
|
|
rv = dirPath->Create(nsIFile::DIRECTORY_TYPE, 0777);
|
|
if (NS_SUCCEEDED(rv) || rv == NS_ERROR_FILE_ALREADY_EXISTS) {
|
|
file = fopen(aFile, "wb");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (!file) {
|
|
NS_WARNING("Failed to open file to create PNG!");
|
|
return;
|
|
}
|
|
}
|
|
|
|
EncodeSourceSurface(aSurface, NS_LITERAL_CSTRING("image/png"),
|
|
EmptyString(), eBinaryEncode, file);
|
|
fclose(file);
|
|
}
|
|
|
|
/* static */ void
|
|
gfxUtils::WriteAsPNG(DrawTarget* aDT, const nsAString& aFile)
|
|
{
|
|
WriteAsPNG(aDT, NS_ConvertUTF16toUTF8(aFile).get());
|
|
}
|
|
|
|
/* static */ void
|
|
gfxUtils::WriteAsPNG(DrawTarget* aDT, const char* aFile)
|
|
{
|
|
RefPtr<SourceSurface> surface = aDT->Snapshot();
|
|
if (surface) {
|
|
WriteAsPNG(surface, aFile);
|
|
} else {
|
|
NS_WARNING("Failed to get surface!");
|
|
}
|
|
}
|
|
|
|
/* static */ void
|
|
gfxUtils::WriteAsPNG(nsIPresShell* aShell, const char* aFile)
|
|
{
|
|
int32_t width = 1000, height = 1000;
|
|
nsRect r(0, 0, aShell->GetPresContext()->DevPixelsToAppUnits(width),
|
|
aShell->GetPresContext()->DevPixelsToAppUnits(height));
|
|
|
|
RefPtr<mozilla::gfx::DrawTarget> dt = gfxPlatform::GetPlatform()->
|
|
CreateOffscreenContentDrawTarget(IntSize(width, height),
|
|
SurfaceFormat::B8G8R8A8);
|
|
NS_ENSURE_TRUE(dt, /*void*/);
|
|
|
|
nsRefPtr<gfxContext> context = new gfxContext(dt);
|
|
aShell->RenderDocument(r, 0, NS_RGB(255, 255, 0), context);
|
|
WriteAsPNG(dt.get(), aFile);
|
|
}
|
|
|
|
/* static */ void
|
|
gfxUtils::DumpAsDataURI(SourceSurface* aSurface, FILE* aFile)
|
|
{
|
|
EncodeSourceSurface(aSurface, NS_LITERAL_CSTRING("image/png"),
|
|
EmptyString(), eDataURIEncode, aFile);
|
|
}
|
|
|
|
/* static */ nsCString
|
|
gfxUtils::GetAsDataURI(SourceSurface* aSurface)
|
|
{
|
|
return EncodeSourceSurfaceAsPNGURI(aSurface);
|
|
}
|
|
|
|
/* static */ void
|
|
gfxUtils::DumpAsDataURI(DrawTarget* aDT, FILE* aFile)
|
|
{
|
|
RefPtr<SourceSurface> surface = aDT->Snapshot();
|
|
if (surface) {
|
|
DumpAsDataURI(surface, aFile);
|
|
} else {
|
|
NS_WARNING("Failed to get surface!");
|
|
}
|
|
}
|
|
|
|
/* static */ nsCString
|
|
gfxUtils::GetAsLZ4Base64Str(DataSourceSurface* aSourceSurface)
|
|
{
|
|
int32_t dataSize = aSourceSurface->GetSize().height * aSourceSurface->Stride();
|
|
auto compressedData = MakeUnique<char[]>(LZ4::maxCompressedSize(dataSize));
|
|
if (compressedData) {
|
|
int nDataSize = LZ4::compress((char*)aSourceSurface->GetData(),
|
|
dataSize,
|
|
compressedData.get());
|
|
if (nDataSize > 0) {
|
|
nsCString encodedImg;
|
|
nsresult rv = Base64Encode(Substring(compressedData.get(), nDataSize), encodedImg);
|
|
if (rv == NS_OK) {
|
|
nsCString string("");
|
|
string.AppendPrintf("data:image/lz4bgra;base64,%i,%i,%i,",
|
|
aSourceSurface->GetSize().width,
|
|
aSourceSurface->Stride(),
|
|
aSourceSurface->GetSize().height);
|
|
string.Append(encodedImg);
|
|
return string;
|
|
}
|
|
}
|
|
}
|
|
return nsCString("");
|
|
}
|
|
|
|
/* static */ nsCString
|
|
gfxUtils::GetAsDataURI(DrawTarget* aDT)
|
|
{
|
|
RefPtr<SourceSurface> surface = aDT->Snapshot();
|
|
if (surface) {
|
|
return EncodeSourceSurfaceAsPNGURI(surface);
|
|
} else {
|
|
NS_WARNING("Failed to get surface!");
|
|
return nsCString("");
|
|
}
|
|
}
|
|
|
|
/* static */ void
|
|
gfxUtils::CopyAsDataURI(SourceSurface* aSurface)
|
|
{
|
|
EncodeSourceSurface(aSurface, NS_LITERAL_CSTRING("image/png"),
|
|
EmptyString(), eDataURIEncode, nullptr);
|
|
}
|
|
|
|
/* static */ void
|
|
gfxUtils::CopyAsDataURI(DrawTarget* aDT)
|
|
{
|
|
RefPtr<SourceSurface> surface = aDT->Snapshot();
|
|
if (surface) {
|
|
CopyAsDataURI(surface);
|
|
} else {
|
|
NS_WARNING("Failed to get surface!");
|
|
}
|
|
}
|
|
|
|
/* static */ bool
|
|
gfxUtils::DumpDisplayList() {
|
|
return gfxPrefs::LayoutDumpDisplayList();
|
|
}
|
|
|
|
FILE *gfxUtils::sDumpPaintFile = stderr;
|
|
|
|
#ifdef MOZ_DUMP_PAINTING
|
|
bool gfxUtils::sDumpPainting = getenv("MOZ_DUMP_PAINT") != 0;
|
|
bool gfxUtils::sDumpPaintingIntermediate = getenv("MOZ_DUMP_PAINT_INTERMEDIATE") != 0;
|
|
bool gfxUtils::sDumpPaintingToFile = getenv("MOZ_DUMP_PAINT_TO_FILE") != 0;
|
|
bool gfxUtils::sDumpPaintItems = getenv("MOZ_DUMP_PAINT_ITEMS") != 0;
|
|
#else
|
|
bool gfxUtils::sDumpPainting = false;
|
|
bool gfxUtils::sDumpPaintingIntermediate = false;
|
|
bool gfxUtils::sDumpPaintingToFile = false;
|
|
bool gfxUtils::sDumpPaintItems = false;
|
|
#endif
|
|
|
|
namespace mozilla {
|
|
namespace gfx {
|
|
|
|
Color ToDeviceColor(Color aColor)
|
|
{
|
|
// aColor is pass-by-value since to get return value optimization goodness we
|
|
// need to return the same object from all return points in this function. We
|
|
// could declare a local Color variable and use that, but we might as well
|
|
// just use aColor.
|
|
if (gfxPlatform::GetCMSMode() == eCMSMode_All) {
|
|
qcms_transform *transform = gfxPlatform::GetCMSRGBTransform();
|
|
if (transform) {
|
|
gfxPlatform::TransformPixel(aColor, aColor, transform);
|
|
// Use the original alpha to avoid unnecessary float->byte->float
|
|
// conversion errors
|
|
}
|
|
}
|
|
return aColor;
|
|
}
|
|
|
|
Color ToDeviceColor(nscolor aColor)
|
|
{
|
|
return ToDeviceColor(Color::FromABGR(aColor));
|
|
}
|
|
|
|
Color ToDeviceColor(const gfxRGBA& aColor)
|
|
{
|
|
return ToDeviceColor(ToColor(aColor));
|
|
}
|
|
|
|
} // namespace gfx
|
|
} // namespace mozilla
|