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Side by Side Diff: content/browser/renderer_host/backing_store_mac.mm

Issue 16917011: mac: Replace base::mac::ScopedCFTypeRef with base::ScopedCFTypeRef. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: with fixed off-by-1 in git-clang-format Created 7 years, 6 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #import <Cocoa/Cocoa.h> 5 #import <Cocoa/Cocoa.h>
6 6
7 #include "content/browser/renderer_host/backing_store_mac.h" 7 #include "content/browser/renderer_host/backing_store_mac.h"
8 8
9 #include <cmath> 9 #include <cmath>
10 10
(...skipping 35 matching lines...) Expand 10 before | Expand all | Expand 10 after
46 46
47 BackingStoreMac::~BackingStoreMac() { 47 BackingStoreMac::~BackingStoreMac() {
48 } 48 }
49 49
50 void BackingStoreMac::ScaleFactorChanged(float device_scale_factor) { 50 void BackingStoreMac::ScaleFactorChanged(float device_scale_factor) {
51 if (device_scale_factor == device_scale_factor_) 51 if (device_scale_factor == device_scale_factor_)
52 return; 52 return;
53 53
54 device_scale_factor_ = device_scale_factor; 54 device_scale_factor_ = device_scale_factor;
55 55
56 base::mac::ScopedCFTypeRef<CGLayerRef> new_layer(CreateCGLayer()); 56 base::ScopedCFTypeRef<CGLayerRef> new_layer(CreateCGLayer());
57 // If we have a layer, copy the old contents. A pixelated flash is better 57 // If we have a layer, copy the old contents. A pixelated flash is better
58 // than a white flash. 58 // than a white flash.
59 if (new_layer && cg_layer_) { 59 if (new_layer && cg_layer_) {
60 CGContextRef layer = CGLayerGetContext(new_layer); 60 CGContextRef layer = CGLayerGetContext(new_layer);
61 CGContextDrawLayerAtPoint(layer, CGPointMake(0, 0), cg_layer_); 61 CGContextDrawLayerAtPoint(layer, CGPointMake(0, 0), cg_layer_);
62 } 62 }
63 63
64 cg_layer_.swap(new_layer); 64 cg_layer_.swap(new_layer);
65 if (!cg_layer_) { 65 if (!cg_layer_) {
66 // The view isn't in a window yet. Use a CGBitmapContext for now. 66 // The view isn't in a window yet. Use a CGBitmapContext for now.
(...skipping 24 matching lines...) Expand all
91 91
92 gfx::Size pixel_size = gfx::ToFlooredSize( 92 gfx::Size pixel_size = gfx::ToFlooredSize(
93 gfx::ScaleSize(size(), device_scale_factor_)); 93 gfx::ScaleSize(size(), device_scale_factor_));
94 gfx::Rect pixel_bitmap_rect = ToFlooredRectDeprecated( 94 gfx::Rect pixel_bitmap_rect = ToFlooredRectDeprecated(
95 gfx::ScaleRect(bitmap_rect, scale_factor)); 95 gfx::ScaleRect(bitmap_rect, scale_factor));
96 96
97 size_t bitmap_byte_count = 97 size_t bitmap_byte_count =
98 pixel_bitmap_rect.width() * pixel_bitmap_rect.height() * 4; 98 pixel_bitmap_rect.width() * pixel_bitmap_rect.height() * 4;
99 DCHECK_GE(dib->size(), bitmap_byte_count); 99 DCHECK_GE(dib->size(), bitmap_byte_count);
100 100
101 base::mac::ScopedCFTypeRef<CGDataProviderRef> data_provider( 101 base::ScopedCFTypeRef<CGDataProviderRef> data_provider(
102 CGDataProviderCreateWithData(NULL, dib->memory(), 102 CGDataProviderCreateWithData(
103 bitmap_byte_count, NULL)); 103 NULL, dib->memory(), bitmap_byte_count, NULL));
104 104
105 base::mac::ScopedCFTypeRef<CGImageRef> bitmap_image( 105 base::ScopedCFTypeRef<CGImageRef> bitmap_image(
106 CGImageCreate(pixel_bitmap_rect.width(), pixel_bitmap_rect.height(), 106 CGImageCreate(pixel_bitmap_rect.width(),
107 8, 32, 4 * pixel_bitmap_rect.width(), 107 pixel_bitmap_rect.height(),
108 base::mac::GetSystemColorSpace(), 108 8,
109 kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host, 109 32,
110 data_provider, NULL, false, kCGRenderingIntentDefault)); 110 4 * pixel_bitmap_rect.width(),
111 base::mac::GetSystemColorSpace(),
112 kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host,
113 data_provider,
114 NULL,
115 false,
116 kCGRenderingIntentDefault));
111 117
112 for (size_t i = 0; i < copy_rects.size(); i++) { 118 for (size_t i = 0; i < copy_rects.size(); i++) {
113 const gfx::Rect& copy_rect = copy_rects[i]; 119 const gfx::Rect& copy_rect = copy_rects[i];
114 gfx::Rect pixel_copy_rect = ToFlooredRectDeprecated( 120 gfx::Rect pixel_copy_rect = ToFlooredRectDeprecated(
115 gfx::ScaleRect(copy_rect, scale_factor)); 121 gfx::ScaleRect(copy_rect, scale_factor));
116 122
117 // Only the subpixels given by copy_rect have pixels to copy. 123 // Only the subpixels given by copy_rect have pixels to copy.
118 base::mac::ScopedCFTypeRef<CGImageRef> image( 124 base::ScopedCFTypeRef<CGImageRef> image(CGImageCreateWithImageInRect(
119 CGImageCreateWithImageInRect(bitmap_image, CGRectMake( 125 bitmap_image,
120 pixel_copy_rect.x() - pixel_bitmap_rect.x(), 126 CGRectMake(pixel_copy_rect.x() - pixel_bitmap_rect.x(),
121 pixel_copy_rect.y() - pixel_bitmap_rect.y(), 127 pixel_copy_rect.y() - pixel_bitmap_rect.y(),
122 pixel_copy_rect.width(), 128 pixel_copy_rect.width(),
123 pixel_copy_rect.height()))); 129 pixel_copy_rect.height())));
124 130
125 if (!cg_layer()) { 131 if (!cg_layer()) {
126 // The view may have moved to a window. Try to get a CGLayer. 132 // The view may have moved to a window. Try to get a CGLayer.
127 cg_layer_.reset(CreateCGLayer()); 133 cg_layer_.reset(CreateCGLayer());
128 if (cg_layer()) { 134 if (cg_layer()) {
129 // Now that we have a layer, copy the cached image into it. 135 // Now that we have a layer, copy the cached image into it.
130 base::mac::ScopedCFTypeRef<CGImageRef> bitmap_image( 136 base::ScopedCFTypeRef<CGImageRef> bitmap_image(
131 CGBitmapContextCreateImage(cg_bitmap_)); 137 CGBitmapContextCreateImage(cg_bitmap_));
132 CGContextDrawImage(CGLayerGetContext(cg_layer()), 138 CGContextDrawImage(CGLayerGetContext(cg_layer()),
133 CGRectMake(0, 0, size().width(), size().height()), 139 CGRectMake(0, 0, size().width(), size().height()),
134 bitmap_image); 140 bitmap_image);
135 // Discard the cache bitmap, since we no longer need it. 141 // Discard the cache bitmap, since we no longer need it.
136 cg_bitmap_.reset(NULL); 142 cg_bitmap_.reset(NULL);
137 } 143 }
138 } 144 }
139 145
140 DCHECK_NE(static_cast<bool>(cg_layer()), static_cast<bool>(cg_bitmap())); 146 DCHECK_NE(static_cast<bool>(cg_layer()), static_cast<bool>(cg_bitmap()));
(...skipping 56 matching lines...) Expand 10 before | Expand all | Expand 10 after
197 gfx::ScopedCGContextSaveGState save_gstate(layer); 203 gfx::ScopedCGContextSaveGState save_gstate(layer);
198 CGContextClipToRect(layer, 204 CGContextClipToRect(layer,
199 CGRectMake(clip_rect.x(), 205 CGRectMake(clip_rect.x(),
200 size().height() - clip_rect.bottom(), 206 size().height() - clip_rect.bottom(),
201 clip_rect.width(), 207 clip_rect.width(),
202 clip_rect.height())); 208 clip_rect.height()));
203 CGContextDrawLayerAtPoint(layer, 209 CGContextDrawLayerAtPoint(layer,
204 CGPointMake(delta.x(), -delta.y()), cg_layer()); 210 CGPointMake(delta.x(), -delta.y()), cg_layer());
205 } else { 211 } else {
206 // We don't have a layer, so scroll the contents of the CGBitmapContext. 212 // We don't have a layer, so scroll the contents of the CGBitmapContext.
207 base::mac::ScopedCFTypeRef<CGImageRef> bitmap_image( 213 base::ScopedCFTypeRef<CGImageRef> bitmap_image(
208 CGBitmapContextCreateImage(cg_bitmap_)); 214 CGBitmapContextCreateImage(cg_bitmap_));
209 gfx::ScopedCGContextSaveGState save_gstate(cg_bitmap_); 215 gfx::ScopedCGContextSaveGState save_gstate(cg_bitmap_);
210 CGContextClipToRect(cg_bitmap_, 216 CGContextClipToRect(cg_bitmap_,
211 CGRectMake(clip_rect.x(), 217 CGRectMake(clip_rect.x(),
212 size().height() - clip_rect.bottom(), 218 size().height() - clip_rect.bottom(),
213 clip_rect.width(), 219 clip_rect.width(),
214 clip_rect.height())); 220 clip_rect.height()));
215 CGContextDrawImage(cg_bitmap_, 221 CGContextDrawImage(cg_bitmap_,
216 CGRectMake(delta.x(), -delta.y(), 222 CGRectMake(delta.x(), -delta.y(),
217 size().width(), size().height()), 223 size().width(), size().height()),
218 bitmap_image); 224 bitmap_image);
219 } 225 }
220 } 226 }
221 } 227 }
222 228
223 void BackingStoreMac::CopyFromBackingStoreToCGContext(const CGRect& dest_rect, 229 void BackingStoreMac::CopyFromBackingStoreToCGContext(const CGRect& dest_rect,
224 CGContextRef context) { 230 CGContextRef context) {
225 gfx::ScopedCGContextSaveGState save_gstate(context); 231 gfx::ScopedCGContextSaveGState save_gstate(context);
226 CGContextSetInterpolationQuality(context, kCGInterpolationHigh); 232 CGContextSetInterpolationQuality(context, kCGInterpolationHigh);
227 if (cg_layer_) { 233 if (cg_layer_) {
228 CGContextDrawLayerInRect(context, dest_rect, cg_layer_); 234 CGContextDrawLayerInRect(context, dest_rect, cg_layer_);
229 } else { 235 } else {
230 base::mac::ScopedCFTypeRef<CGImageRef> image( 236 base::ScopedCFTypeRef<CGImageRef> image(
231 CGBitmapContextCreateImage(cg_bitmap_)); 237 CGBitmapContextCreateImage(cg_bitmap_));
232 CGContextDrawImage(context, dest_rect, image); 238 CGContextDrawImage(context, dest_rect, image);
233 } 239 }
234 } 240 }
235 241
236 CGLayerRef BackingStoreMac::CreateCGLayer() { 242 CGLayerRef BackingStoreMac::CreateCGLayer() {
237 // The CGLayer should be optimized for drawing into the containing window, 243 // The CGLayer should be optimized for drawing into the containing window,
238 // so extract a CGContext corresponding to the window to be passed to 244 // so extract a CGContext corresponding to the window to be passed to
239 // CGLayerCreateWithContext. 245 // CGLayerCreateWithContext.
240 NSWindow* window = [render_widget_host()->GetView()->GetNativeView() window]; 246 NSWindow* window = [render_widget_host()->GetView()->GetNativeView() window];
(...skipping 31 matching lines...) Expand 10 before | Expand all | Expand 10 after
272 8, pixel_size.width() * 4, 278 8, pixel_size.width() * 4,
273 base::mac::GetSystemColorSpace(), 279 base::mac::GetSystemColorSpace(),
274 kCGImageAlphaPremultipliedFirst | 280 kCGImageAlphaPremultipliedFirst |
275 kCGBitmapByteOrder32Host); 281 kCGBitmapByteOrder32Host);
276 DCHECK(context); 282 DCHECK(context);
277 283
278 return context; 284 return context;
279 } 285 }
280 286
281 } // namespace content 287 } // namespace content
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