1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_OUTPUT_DIRECT_RENDERER_H_
#define CC_OUTPUT_DIRECT_RENDERER_H_
#include "base/basictypes.h"
#include "cc/base/cc_export.h"
#include "cc/output/renderer.h"
#include "cc/resource_provider.h"
#include "cc/scoped_resource.h"
namespace cc {
class ResourceProvider;
// This is the base class for code shared between the GL and software
// renderer implementations. "Direct" refers to the fact that it does not
// delegate rendering to another compositor.
class CC_EXPORT DirectRenderer : public Renderer {
public:
virtual ~DirectRenderer();
ResourceProvider* resource_provider() const { return resource_provider_; }
virtual void DecideRenderPassAllocationsForFrame(
const RenderPassList& render_passes_in_draw_order) OVERRIDE;
virtual bool HaveCachedResourcesForRenderPassId(RenderPass::Id id) const
OVERRIDE;
virtual void DrawFrame(RenderPassList& render_passes_in_draw_order) OVERRIDE;
struct CC_EXPORT DrawingFrame {
DrawingFrame();
~DrawingFrame();
const RenderPass* root_render_pass;
const RenderPass* current_render_pass;
const ScopedResource* current_texture;
gfx::RectF root_damage_rect;
gfx::Transform projection_matrix;
gfx::Transform window_matrix;
bool flipped_y;
};
void SetEnlargePassTextureAmountForTesting(gfx::Vector2d amount);
protected:
DirectRenderer(RendererClient* client, ResourceProvider* resource_provider);
class CachedResource : public ScopedResource {
public:
static scoped_ptr<CachedResource> Create(
ResourceProvider* resource_provider) {
return make_scoped_ptr(new CachedResource(resource_provider));
}
virtual ~CachedResource() {}
bool is_complete() const { return is_complete_; }
void set_is_complete(bool is_complete) { is_complete_ = is_complete; }
protected:
explicit CachedResource(ResourceProvider* resource_provider)
: ScopedResource(resource_provider),
is_complete_(false) {}
private:
bool is_complete_;
DISALLOW_COPY_AND_ASSIGN(CachedResource);
};
static gfx::RectF QuadVertexRect();
static void QuadRectTransform(gfx::Transform* quad_rect_transform,
const gfx::Transform& quad_transform,
const gfx::RectF& quad_rect);
static void InitializeMatrices(DrawingFrame& frame,
gfx::Rect draw_rect,
bool flip_y);
static gfx::Rect MoveScissorToWindowSpace(const DrawingFrame& frame,
const gfx::RectF& scissor_rect);
static gfx::RectF ComputeScissorRectForRenderPass(const DrawingFrame& frame);
void SetScissorStateForQuad(const DrawingFrame& frame, const DrawQuad& quad);
void SetScissorStateForQuadWithRenderPassScissor(
const DrawingFrame& frame,
const DrawQuad& quad,
const gfx::RectF& render_pass_scissor,
bool* should_skip_quad);
static gfx::Size RenderPassTextureSize(const RenderPass* render_pass);
static GLenum RenderPassTextureFormat(const RenderPass* render_pass);
void DrawRenderPass(DrawingFrame& frame, const RenderPass* render_pass);
bool UseRenderPass(DrawingFrame& frame, const RenderPass* render_pass);
virtual void BindFramebufferToOutputSurface(DrawingFrame& frame) = 0;
virtual bool BindFramebufferToTexture(DrawingFrame& frame,
const ScopedResource* resource,
gfx::Rect framebuffer_rect) = 0;
virtual void SetDrawViewportSize(gfx::Size viewport_size) = 0;
virtual void SetScissorTestRect(gfx::Rect scissor_rect) = 0;
virtual void ClearFramebuffer(DrawingFrame& frame) = 0;
virtual void DoDrawQuad(DrawingFrame& frame, const DrawQuad* quad) = 0;
virtual void BeginDrawingFrame(DrawingFrame& frame) = 0;
virtual void FinishDrawingFrame(DrawingFrame& frame) = 0;
virtual void FinishDrawingQuadList();
virtual bool FlippedFramebuffer() const = 0;
virtual void EnsureScissorTestEnabled() = 0;
virtual void EnsureScissorTestDisabled() = 0;
ScopedPtrHashMap<RenderPass::Id, CachedResource> render_pass_textures_;
ResourceProvider* resource_provider_;
private:
gfx::Vector2d enlarge_pass_texture_amount_;
DISALLOW_COPY_AND_ASSIGN(DirectRenderer);
};
} // namespace cc
#endif // CC_OUTPUT_DIRECT_RENDERER_H_
|
