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Issue 1135813005: Add detection for rotation and flip overlay transforms (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Move Get*Axis to MathUtil, rename flipped->y_flipped Created 5 years, 7 months ago
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1 // Copyright 2012 The Chromium Authors. All rights reserved. 1 // Copyright 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 #include "cc/output/software_renderer.h" 5 #include "cc/output/software_renderer.h"
6 6
7 #include "base/trace_event/trace_event.h" 7 #include "base/trace_event/trace_event.h"
8 #include "cc/base/math_util.h" 8 #include "cc/base/math_util.h"
9 #include "cc/output/compositor_frame.h" 9 #include "cc/output/compositor_frame.h"
10 #include "cc/output/compositor_frame_ack.h" 10 #include "cc/output/compositor_frame_ack.h"
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431 quad->uv_bottom_right), 431 quad->uv_bottom_right),
432 bitmap->width(), 432 bitmap->width(),
433 bitmap->height()); 433 bitmap->height());
434 gfx::RectF visible_uv_rect = 434 gfx::RectF visible_uv_rect =
435 MathUtil::ScaleRectProportional(uv_rect, quad->rect, quad->visible_rect); 435 MathUtil::ScaleRectProportional(uv_rect, quad->rect, quad->visible_rect);
436 SkRect sk_uv_rect = gfx::RectFToSkRect(visible_uv_rect); 436 SkRect sk_uv_rect = gfx::RectFToSkRect(visible_uv_rect);
437 gfx::RectF visible_quad_vertex_rect = MathUtil::ScaleRectProportional( 437 gfx::RectF visible_quad_vertex_rect = MathUtil::ScaleRectProportional(
438 QuadVertexRect(), quad->rect, quad->visible_rect); 438 QuadVertexRect(), quad->rect, quad->visible_rect);
439 SkRect quad_rect = gfx::RectFToSkRect(visible_quad_vertex_rect); 439 SkRect quad_rect = gfx::RectFToSkRect(visible_quad_vertex_rect);
440 440
441 if (quad->flipped) 441 if (quad->y_flipped)
442 current_canvas_->scale(1, -1); 442 current_canvas_->scale(1, -1);
443 443
444 bool blend_background = quad->background_color != SK_ColorTRANSPARENT && 444 bool blend_background = quad->background_color != SK_ColorTRANSPARENT &&
445 !bitmap->isOpaque(); 445 !bitmap->isOpaque();
446 bool needs_layer = blend_background && (current_paint_.getAlpha() != 0xFF); 446 bool needs_layer = blend_background && (current_paint_.getAlpha() != 0xFF);
447 if (needs_layer) { 447 if (needs_layer) {
448 current_canvas_->saveLayerAlpha(&quad_rect, current_paint_.getAlpha()); 448 current_canvas_->saveLayerAlpha(&quad_rect, current_paint_.getAlpha());
449 current_paint_.setAlpha(0xFF); 449 current_paint_.setAlpha(0xFF);
450 } 450 }
451 if (blend_background) { 451 if (blend_background) {
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649 } 649 }
650 650
651 void SoftwareRenderer::DidChangeVisibility() { 651 void SoftwareRenderer::DidChangeVisibility() {
652 if (visible()) 652 if (visible())
653 EnsureBackbuffer(); 653 EnsureBackbuffer();
654 else 654 else
655 DiscardBackbuffer(); 655 DiscardBackbuffer();
656 } 656 }
657 657
658 } // namespace cc 658 } // namespace cc
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