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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "core/fxcrt/fx_extension.h"
#if !defined _SKIA_SUPPORT_ && !defined _SKIA_SUPPORT_PATHS_
#include "core/fxge/agg/fx_agg_driver.h"
#endif
#include "core/fxcrt/fx_memory.h"
#include "core/fxge/cfx_gemodule.h"
#include "core/fxge/cfx_graphstatedata.h"
#include "core/fxge/cfx_pathdata.h"
#include "core/fxge/cfx_renderdevice.h"
#include "core/fxge/fx_freetype.h"
#include "core/fxge/ge/fx_text_int.h"
#include "third_party/base/ptr_util.h"
#include "core/fxge/apple/apple_int.h"
#ifndef CGFLOAT_IS_DOUBLE
#error Expected CGFLOAT_IS_DOUBLE to be defined by CoreGraphics headers
#endif
void* CQuartz2D::createGraphics(const CFX_RetainPtr<CFX_DIBitmap>& pBitmap) {
if (!pBitmap)
return nullptr;
CGBitmapInfo bmpInfo = kCGBitmapByteOrder32Little;
switch (pBitmap->GetFormat()) {
case FXDIB_Rgb32:
bmpInfo |= kCGImageAlphaNoneSkipFirst;
break;
case FXDIB_Argb:
default:
return nullptr;
}
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGContextRef context = CGBitmapContextCreate(
pBitmap->GetBuffer(), pBitmap->GetWidth(), pBitmap->GetHeight(), 8,
pBitmap->GetPitch(), colorSpace, bmpInfo);
CGColorSpaceRelease(colorSpace);
return context;
}
void CQuartz2D::destroyGraphics(void* graphics) {
if (graphics)
CGContextRelease((CGContextRef)graphics);
}
void* CQuartz2D::CreateFont(const uint8_t* pFontData, uint32_t dwFontSize) {
CGDataProviderRef pDataProvider = CGDataProviderCreateWithData(
nullptr, pFontData, (size_t)dwFontSize, nullptr);
if (!pDataProvider)
return nullptr;
CGFontRef pCGFont = CGFontCreateWithDataProvider(pDataProvider);
CGDataProviderRelease(pDataProvider);
return pCGFont;
}
void CQuartz2D::DestroyFont(void* pFont) {
CGFontRelease((CGFontRef)pFont);
}
void CQuartz2D::setGraphicsTextMatrix(void* graphics, CFX_Matrix* matrix) {
if (!graphics || !matrix)
return;
CGContextRef context = (CGContextRef)graphics;
CGFloat ty = CGBitmapContextGetHeight(context) - matrix->f;
CGContextSetTextMatrix(
context, CGAffineTransformMake(matrix->a, matrix->b, matrix->c, matrix->d,
matrix->e, ty));
}
bool CQuartz2D::drawGraphicsString(void* graphics,
void* font,
float fontSize,
uint16_t* glyphIndices,
CGPoint* glyphPositions,
int32_t charsCount,
FX_ARGB argb,
CFX_Matrix* matrix) {
if (!graphics)
return false;
CGContextRef context = (CGContextRef)graphics;
CGContextSetFont(context, (CGFontRef)font);
CGContextSetFontSize(context, fontSize);
if (matrix) {
CGAffineTransform m = CGContextGetTextMatrix(context);
m = CGAffineTransformConcat(
m, CGAffineTransformMake(matrix->a, matrix->b, matrix->c, matrix->d,
matrix->e, matrix->f));
CGContextSetTextMatrix(context, m);
}
int32_t a;
int32_t r;
int32_t g;
int32_t b;
std::tie(a, r, g, b) = ArgbDecode(argb);
CGContextSetRGBFillColor(context, r / 255.f, g / 255.f, b / 255.f, a / 255.f);
CGContextSaveGState(context);
#if CGFLOAT_IS_DOUBLE
CGPoint* glyphPositionsCG = new CGPoint[charsCount];
for (int index = 0; index < charsCount; ++index) {
glyphPositionsCG[index].x = glyphPositions[index].x;
glyphPositionsCG[index].y = glyphPositions[index].y;
}
#else
CGPoint* glyphPositionsCG = (CGPoint*)glyphPositions;
#endif
CGContextShowGlyphsAtPositions(context, (CGGlyph*)glyphIndices,
glyphPositionsCG, charsCount);
#if CGFLOAT_IS_DOUBLE
delete[] glyphPositionsCG;
#endif
CGContextRestoreGState(context);
return true;
}
void CQuartz2D::saveGraphicsState(void* graphics) {
if (graphics)
CGContextSaveGState((CGContextRef)graphics);
}
void CQuartz2D::restoreGraphicsState(void* graphics) {
if (graphics)
CGContextRestoreGState((CGContextRef)graphics);
}
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