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
125
126
|
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_HWUI_BAKED_OP_RENDERER_H
#define ANDROID_HWUI_BAKED_OP_RENDERER_H
#include "BakedOpState.h"
#include "Matrix.h"
#include "utils/Macros.h"
namespace android {
namespace uirenderer {
class Caches;
struct Glop;
class Layer;
class RenderState;
struct ClipBase;
/**
* Main rendering manager for a collection of work - one frame + any contained FBOs.
*
* Manages frame and FBO lifecycle, binding the GL framebuffer as appropriate. This is the only
* place where FBOs are bound, created, and destroyed.
*
* All rendering operations will be sent by the Dispatcher, a collection of static methods,
* which has intentionally limited access to the renderer functionality.
*/
class BakedOpRenderer {
public:
/**
* Position agnostic shadow lighting info. Used with all shadow ops in scene.
*/
struct LightInfo {
float lightRadius = 0;
uint8_t ambientShadowAlpha = 0;
uint8_t spotShadowAlpha = 0;
};
BakedOpRenderer(Caches& caches, RenderState& renderState, bool opaque, const LightInfo& lightInfo)
: mRenderState(renderState)
, mCaches(caches)
, mOpaque(opaque)
, mLightInfo(lightInfo) {
}
RenderState& renderState() { return mRenderState; }
Caches& caches() { return mCaches; }
void startFrame(uint32_t width, uint32_t height, const Rect& repaintRect);
void endFrame(const Rect& repaintRect);
WARN_UNUSED_RESULT OffscreenBuffer* startTemporaryLayer(uint32_t width, uint32_t height);
void startRepaintLayer(OffscreenBuffer* offscreenBuffer, const Rect& repaintRect);
void endLayer();
WARN_UNUSED_RESULT OffscreenBuffer* copyToLayer(const Rect& area);
Texture* getTexture(const SkBitmap* bitmap);
const LightInfo& getLightInfo() const { return mLightInfo; }
void renderGlop(const BakedOpState& state, const Glop& glop) {
renderGlop(&state.computedState.clippedBounds,
state.computedState.getClipIfNeeded(),
glop);
}
void renderFunctor(const FunctorOp& op, const BakedOpState& state);
void renderGlop(const Rect* dirtyBounds, const ClipBase* clip, const Glop& glop);
bool offscreenRenderTarget() { return mRenderTarget.offscreenBuffer != nullptr; }
void dirtyRenderTarget(const Rect& dirtyRect);
bool didDraw() const { return mHasDrawn; }
private:
void setViewport(uint32_t width, uint32_t height);
void clearColorBuffer(const Rect& clearRect);
void prepareRender(const Rect* dirtyBounds, const ClipBase* clip);
void setupStencilRectList(const ClipBase* clip);
void setupStencilRegion(const ClipBase* clip);
void setupStencilQuads(std::vector<Vertex>& quadVertices, int incrementThreshold);
RenderState& mRenderState;
Caches& mCaches;
bool mOpaque;
bool mHasDrawn = false;
// render target state - setup by start/end layer/frame
// only valid to use in between start/end pairs.
struct {
// If not drawing to a layer: fbo = 0, offscreenBuffer = null,
// Otherwise these refer to currently painting layer's state
GLuint frameBufferId = 0;
OffscreenBuffer* offscreenBuffer = nullptr;
// Used when drawing to a layer and using stencil clipping. otherwise null.
RenderBuffer* stencil = nullptr;
// value representing the ClipRectList* or ClipRegion* currently stored in
// the stencil of the current render target
const ClipBase* lastStencilClip = nullptr;
// Size of renderable region in current render target - for layers, may not match actual
// bounds of FBO texture. offscreenBuffer->texture has this information.
uint32_t viewportWidth = 0;
uint32_t viewportHeight = 0;
Matrix4 orthoMatrix;
} mRenderTarget;
const LightInfo mLightInfo;
};
}; // namespace uirenderer
}; // namespace android
#endif // ANDROID_HWUI_BAKED_OP_RENDERER_H
|