1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/thebes/gfxQuartzSurface.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,207 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "gfxQuartzSurface.h"
1.10 +#include "gfxContext.h"
1.11 +#include "gfxImageSurface.h"
1.12 +
1.13 +#include "cairo-quartz.h"
1.14 +
1.15 +void
1.16 +gfxQuartzSurface::MakeInvalid()
1.17 +{
1.18 + mSize = gfxIntSize(-1, -1);
1.19 +}
1.20 +
1.21 +gfxQuartzSurface::gfxQuartzSurface(const gfxSize& desiredSize, gfxImageFormat format,
1.22 + bool aForPrinting)
1.23 + : mCGContext(nullptr), mSize(desiredSize), mForPrinting(aForPrinting)
1.24 +{
1.25 + gfxIntSize size((unsigned int) floor(desiredSize.width),
1.26 + (unsigned int) floor(desiredSize.height));
1.27 + if (!CheckSurfaceSize(size))
1.28 + MakeInvalid();
1.29 +
1.30 + unsigned int width = static_cast<unsigned int>(mSize.width);
1.31 + unsigned int height = static_cast<unsigned int>(mSize.height);
1.32 +
1.33 + cairo_surface_t *surf = cairo_quartz_surface_create
1.34 + ((cairo_format_t) format, width, height);
1.35 +
1.36 + mCGContext = cairo_quartz_surface_get_cg_context (surf);
1.37 +
1.38 + CGContextRetain(mCGContext);
1.39 +
1.40 + Init(surf);
1.41 + if (mSurfaceValid) {
1.42 + RecordMemoryUsed(mSize.height * 4 + sizeof(gfxQuartzSurface));
1.43 + }
1.44 +}
1.45 +
1.46 +gfxQuartzSurface::gfxQuartzSurface(CGContextRef context,
1.47 + const gfxSize& desiredSize,
1.48 + bool aForPrinting)
1.49 + : mCGContext(context), mSize(desiredSize), mForPrinting(aForPrinting)
1.50 +{
1.51 + gfxIntSize size((unsigned int) floor(desiredSize.width),
1.52 + (unsigned int) floor(desiredSize.height));
1.53 + if (!CheckSurfaceSize(size))
1.54 + MakeInvalid();
1.55 +
1.56 + unsigned int width = static_cast<unsigned int>(mSize.width);
1.57 + unsigned int height = static_cast<unsigned int>(mSize.height);
1.58 +
1.59 + cairo_surface_t *surf =
1.60 + cairo_quartz_surface_create_for_cg_context(context,
1.61 + width, height);
1.62 +
1.63 + CGContextRetain(mCGContext);
1.64 +
1.65 + Init(surf);
1.66 + if (mSurfaceValid) {
1.67 + RecordMemoryUsed(mSize.height * 4 + sizeof(gfxQuartzSurface));
1.68 + }
1.69 +}
1.70 +
1.71 +gfxQuartzSurface::gfxQuartzSurface(CGContextRef context,
1.72 + const gfxIntSize& size,
1.73 + bool aForPrinting)
1.74 + : mCGContext(context), mSize(size), mForPrinting(aForPrinting)
1.75 +{
1.76 + if (!CheckSurfaceSize(size))
1.77 + MakeInvalid();
1.78 +
1.79 + unsigned int width = static_cast<unsigned int>(mSize.width);
1.80 + unsigned int height = static_cast<unsigned int>(mSize.height);
1.81 +
1.82 + cairo_surface_t *surf =
1.83 + cairo_quartz_surface_create_for_cg_context(context,
1.84 + width, height);
1.85 +
1.86 + CGContextRetain(mCGContext);
1.87 +
1.88 + Init(surf);
1.89 + if (mSurfaceValid) {
1.90 + RecordMemoryUsed(mSize.height * 4 + sizeof(gfxQuartzSurface));
1.91 + }
1.92 +}
1.93 +
1.94 +gfxQuartzSurface::gfxQuartzSurface(cairo_surface_t *csurf,
1.95 + const gfxIntSize& aSize,
1.96 + bool aForPrinting) :
1.97 + mSize(aSize), mForPrinting(aForPrinting)
1.98 +{
1.99 + mCGContext = cairo_quartz_surface_get_cg_context (csurf);
1.100 + CGContextRetain (mCGContext);
1.101 +
1.102 + Init(csurf, true);
1.103 +}
1.104 +
1.105 +gfxQuartzSurface::gfxQuartzSurface(unsigned char *data,
1.106 + const gfxSize& desiredSize,
1.107 + long stride,
1.108 + gfxImageFormat format,
1.109 + bool aForPrinting)
1.110 + : mCGContext(nullptr), mSize(desiredSize), mForPrinting(aForPrinting)
1.111 +{
1.112 + gfxIntSize size((unsigned int) floor(desiredSize.width),
1.113 + (unsigned int) floor(desiredSize.height));
1.114 + if (!CheckSurfaceSize(size))
1.115 + MakeInvalid();
1.116 +
1.117 + unsigned int width = static_cast<unsigned int>(mSize.width);
1.118 + unsigned int height = static_cast<unsigned int>(mSize.height);
1.119 +
1.120 + cairo_surface_t *surf = cairo_quartz_surface_create_for_data
1.121 + (data, (cairo_format_t) format, width, height, stride);
1.122 +
1.123 + mCGContext = cairo_quartz_surface_get_cg_context (surf);
1.124 +
1.125 + CGContextRetain(mCGContext);
1.126 +
1.127 + Init(surf);
1.128 + if (mSurfaceValid) {
1.129 + RecordMemoryUsed(mSize.height * stride + sizeof(gfxQuartzSurface));
1.130 + }
1.131 +}
1.132 +
1.133 +gfxQuartzSurface::gfxQuartzSurface(unsigned char *data,
1.134 + const gfxIntSize& aSize,
1.135 + long stride,
1.136 + gfxImageFormat format,
1.137 + bool aForPrinting)
1.138 + : mCGContext(nullptr), mSize(aSize.width, aSize.height), mForPrinting(aForPrinting)
1.139 +{
1.140 + if (!CheckSurfaceSize(aSize))
1.141 + MakeInvalid();
1.142 +
1.143 + cairo_surface_t *surf = cairo_quartz_surface_create_for_data
1.144 + (data, (cairo_format_t) format, aSize.width, aSize.height, stride);
1.145 +
1.146 + mCGContext = cairo_quartz_surface_get_cg_context (surf);
1.147 +
1.148 + CGContextRetain(mCGContext);
1.149 +
1.150 + Init(surf);
1.151 + if (mSurfaceValid) {
1.152 + RecordMemoryUsed(mSize.height * stride + sizeof(gfxQuartzSurface));
1.153 + }
1.154 +}
1.155 +
1.156 +already_AddRefed<gfxASurface>
1.157 +gfxQuartzSurface::CreateSimilarSurface(gfxContentType aType,
1.158 + const gfxIntSize& aSize)
1.159 +{
1.160 + cairo_surface_t *surface =
1.161 + cairo_quartz_surface_create_cg_layer(mSurface, (cairo_content_t)aType,
1.162 + aSize.width, aSize.height);
1.163 + if (cairo_surface_status(surface)) {
1.164 + cairo_surface_destroy(surface);
1.165 + return nullptr;
1.166 + }
1.167 +
1.168 + nsRefPtr<gfxASurface> result = Wrap(surface, aSize);
1.169 + cairo_surface_destroy(surface);
1.170 + return result.forget();
1.171 +}
1.172 +
1.173 +CGContextRef
1.174 +gfxQuartzSurface::GetCGContextWithClip(gfxContext *ctx)
1.175 +{
1.176 + return cairo_quartz_get_cg_context_with_clip(ctx->GetCairo());
1.177 +}
1.178 +
1.179 +int32_t gfxQuartzSurface::GetDefaultContextFlags() const
1.180 +{
1.181 + if (mForPrinting)
1.182 + return gfxContext::FLAG_DISABLE_SNAPPING |
1.183 + gfxContext::FLAG_DISABLE_COPY_BACKGROUND;
1.184 +
1.185 + return 0;
1.186 +}
1.187 +
1.188 +already_AddRefed<gfxImageSurface> gfxQuartzSurface::GetAsImageSurface()
1.189 +{
1.190 + cairo_surface_t *surface = cairo_quartz_surface_get_image(mSurface);
1.191 + if (!surface || cairo_surface_status(surface))
1.192 + return nullptr;
1.193 +
1.194 + nsRefPtr<gfxASurface> img = Wrap(surface);
1.195 +
1.196 + // cairo_quartz_surface_get_image returns a referenced image, and thebes
1.197 + // shares the refcounts of Cairo surfaces. However, Wrap also adds a
1.198 + // reference to the image. We need to remove one of these references
1.199 + // explicitly so we don't leak.
1.200 + img->Release();
1.201 +
1.202 + img->SetOpaqueRect(GetOpaqueRect());
1.203 +
1.204 + return img.forget().downcast<gfxImageSurface>();
1.205 +}
1.206 +
1.207 +gfxQuartzSurface::~gfxQuartzSurface()
1.208 +{
1.209 + CGContextRelease(mCGContext);
1.210 +}
