michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "gfxQuartzSurface.h"
michael@0: #include "gfxContext.h"
michael@0: #include "gfxImageSurface.h"
michael@0: 
michael@0: #include "cairo-quartz.h"
michael@0: 
michael@0: void
michael@0: gfxQuartzSurface::MakeInvalid()
michael@0: {
michael@0:     mSize = gfxIntSize(-1, -1);    
michael@0: }
michael@0: 
michael@0: gfxQuartzSurface::gfxQuartzSurface(const gfxSize& desiredSize, gfxImageFormat format,
michael@0:                                    bool aForPrinting)
michael@0:     : mCGContext(nullptr), mSize(desiredSize), mForPrinting(aForPrinting)
michael@0: {
michael@0:     gfxIntSize size((unsigned int) floor(desiredSize.width),
michael@0:                     (unsigned int) floor(desiredSize.height));
michael@0:     if (!CheckSurfaceSize(size))
michael@0:         MakeInvalid();
michael@0: 
michael@0:     unsigned int width = static_cast<unsigned int>(mSize.width);
michael@0:     unsigned int height = static_cast<unsigned int>(mSize.height);
michael@0: 
michael@0:     cairo_surface_t *surf = cairo_quartz_surface_create
michael@0:         ((cairo_format_t) format, width, height);
michael@0: 
michael@0:     mCGContext = cairo_quartz_surface_get_cg_context (surf);
michael@0: 
michael@0:     CGContextRetain(mCGContext);
michael@0: 
michael@0:     Init(surf);
michael@0:     if (mSurfaceValid) {
michael@0:       RecordMemoryUsed(mSize.height * 4 + sizeof(gfxQuartzSurface));
michael@0:     }
michael@0: }
michael@0: 
michael@0: gfxQuartzSurface::gfxQuartzSurface(CGContextRef context,
michael@0:                                    const gfxSize& desiredSize,
michael@0:                                    bool aForPrinting)
michael@0:     : mCGContext(context), mSize(desiredSize), mForPrinting(aForPrinting)
michael@0: {
michael@0:     gfxIntSize size((unsigned int) floor(desiredSize.width),
michael@0:                     (unsigned int) floor(desiredSize.height));
michael@0:     if (!CheckSurfaceSize(size))
michael@0:         MakeInvalid();
michael@0: 
michael@0:     unsigned int width = static_cast<unsigned int>(mSize.width);
michael@0:     unsigned int height = static_cast<unsigned int>(mSize.height);
michael@0: 
michael@0:     cairo_surface_t *surf =
michael@0:         cairo_quartz_surface_create_for_cg_context(context,
michael@0:                                                    width, height);
michael@0: 
michael@0:     CGContextRetain(mCGContext);
michael@0: 
michael@0:     Init(surf);
michael@0:     if (mSurfaceValid) {
michael@0:       RecordMemoryUsed(mSize.height * 4 + sizeof(gfxQuartzSurface));
michael@0:     }
michael@0: }
michael@0: 
michael@0: gfxQuartzSurface::gfxQuartzSurface(CGContextRef context,
michael@0:                                    const gfxIntSize& size,
michael@0:                                    bool aForPrinting)
michael@0:     : mCGContext(context), mSize(size), mForPrinting(aForPrinting)
michael@0: {
michael@0:     if (!CheckSurfaceSize(size))
michael@0:         MakeInvalid();
michael@0: 
michael@0:     unsigned int width = static_cast<unsigned int>(mSize.width);
michael@0:     unsigned int height = static_cast<unsigned int>(mSize.height);
michael@0: 
michael@0:     cairo_surface_t *surf = 
michael@0:         cairo_quartz_surface_create_for_cg_context(context,
michael@0:                                                    width, height);
michael@0: 
michael@0:     CGContextRetain(mCGContext);
michael@0: 
michael@0:     Init(surf);
michael@0:     if (mSurfaceValid) {
michael@0:       RecordMemoryUsed(mSize.height * 4 + sizeof(gfxQuartzSurface));
michael@0:     }
michael@0: }
michael@0: 
michael@0: gfxQuartzSurface::gfxQuartzSurface(cairo_surface_t *csurf,
michael@0:                                    const gfxIntSize& aSize,
michael@0:                                    bool aForPrinting) :
michael@0:     mSize(aSize), mForPrinting(aForPrinting)
michael@0: {
michael@0:     mCGContext = cairo_quartz_surface_get_cg_context (csurf);
michael@0:     CGContextRetain (mCGContext);
michael@0: 
michael@0:     Init(csurf, true);
michael@0: }
michael@0: 
michael@0: gfxQuartzSurface::gfxQuartzSurface(unsigned char *data,
michael@0:                                    const gfxSize& desiredSize,
michael@0:                                    long stride,
michael@0:                                    gfxImageFormat format,
michael@0:                                    bool aForPrinting)
michael@0:     : mCGContext(nullptr), mSize(desiredSize), mForPrinting(aForPrinting)
michael@0: {
michael@0:     gfxIntSize size((unsigned int) floor(desiredSize.width),
michael@0:                     (unsigned int) floor(desiredSize.height));
michael@0:     if (!CheckSurfaceSize(size))
michael@0:         MakeInvalid();
michael@0: 
michael@0:     unsigned int width = static_cast<unsigned int>(mSize.width);
michael@0:     unsigned int height = static_cast<unsigned int>(mSize.height);
michael@0: 
michael@0:     cairo_surface_t *surf = cairo_quartz_surface_create_for_data
michael@0:         (data, (cairo_format_t) format, width, height, stride);
michael@0: 
michael@0:     mCGContext = cairo_quartz_surface_get_cg_context (surf);
michael@0: 
michael@0:     CGContextRetain(mCGContext);
michael@0: 
michael@0:     Init(surf);
michael@0:     if (mSurfaceValid) {
michael@0:       RecordMemoryUsed(mSize.height * stride + sizeof(gfxQuartzSurface));
michael@0:     }
michael@0: }
michael@0: 
michael@0: gfxQuartzSurface::gfxQuartzSurface(unsigned char *data,
michael@0:                                    const gfxIntSize& aSize,
michael@0:                                    long stride,
michael@0:                                    gfxImageFormat format,
michael@0:                                    bool aForPrinting)
michael@0:     : mCGContext(nullptr), mSize(aSize.width, aSize.height), mForPrinting(aForPrinting)
michael@0: {
michael@0:     if (!CheckSurfaceSize(aSize))
michael@0:         MakeInvalid();
michael@0: 
michael@0:     cairo_surface_t *surf = cairo_quartz_surface_create_for_data
michael@0:         (data, (cairo_format_t) format, aSize.width, aSize.height, stride);
michael@0: 
michael@0:     mCGContext = cairo_quartz_surface_get_cg_context (surf);
michael@0: 
michael@0:     CGContextRetain(mCGContext);
michael@0: 
michael@0:     Init(surf);
michael@0:     if (mSurfaceValid) {
michael@0:       RecordMemoryUsed(mSize.height * stride + sizeof(gfxQuartzSurface));
michael@0:     }
michael@0: }
michael@0: 
michael@0: already_AddRefed<gfxASurface>
michael@0: gfxQuartzSurface::CreateSimilarSurface(gfxContentType aType,
michael@0:                                        const gfxIntSize& aSize)
michael@0: {
michael@0:     cairo_surface_t *surface =
michael@0:         cairo_quartz_surface_create_cg_layer(mSurface, (cairo_content_t)aType,
michael@0:                                              aSize.width, aSize.height);
michael@0:     if (cairo_surface_status(surface)) {
michael@0:         cairo_surface_destroy(surface);
michael@0:         return nullptr;
michael@0:     }
michael@0: 
michael@0:     nsRefPtr<gfxASurface> result = Wrap(surface, aSize);
michael@0:     cairo_surface_destroy(surface);
michael@0:     return result.forget();
michael@0: }
michael@0: 
michael@0: CGContextRef
michael@0: gfxQuartzSurface::GetCGContextWithClip(gfxContext *ctx)
michael@0: {
michael@0: 	return cairo_quartz_get_cg_context_with_clip(ctx->GetCairo());
michael@0: }
michael@0: 
michael@0: int32_t gfxQuartzSurface::GetDefaultContextFlags() const
michael@0: {
michael@0:     if (mForPrinting)
michael@0:         return gfxContext::FLAG_DISABLE_SNAPPING |
michael@0:                gfxContext::FLAG_DISABLE_COPY_BACKGROUND;
michael@0: 
michael@0:     return 0;
michael@0: }
michael@0: 
michael@0: already_AddRefed<gfxImageSurface> gfxQuartzSurface::GetAsImageSurface()
michael@0: {
michael@0:     cairo_surface_t *surface = cairo_quartz_surface_get_image(mSurface);
michael@0:     if (!surface || cairo_surface_status(surface))
michael@0:         return nullptr;
michael@0: 
michael@0:     nsRefPtr<gfxASurface> img = Wrap(surface);
michael@0: 
michael@0:     // cairo_quartz_surface_get_image returns a referenced image, and thebes
michael@0:     // shares the refcounts of Cairo surfaces. However, Wrap also adds a
michael@0:     // reference to the image. We need to remove one of these references
michael@0:     // explicitly so we don't leak.
michael@0:     img->Release();
michael@0: 
michael@0:     img->SetOpaqueRect(GetOpaqueRect());
michael@0: 
michael@0:     return img.forget().downcast<gfxImageSurface>();
michael@0: }
michael@0: 
michael@0: gfxQuartzSurface::~gfxQuartzSurface()
michael@0: {
michael@0:     CGContextRelease(mCGContext);
michael@0: }