OpenGLRenderer.h revision a979474f15b454c8e2963f239a3770e200bb227c
1e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy/* 2e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * Copyright (C) 2010 The Android Open Source Project 3e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * 4e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 5e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * you may not use this file except in compliance with the License. 6e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * You may obtain a copy of the License at 7e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * 8e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 9e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * 10e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * Unless required by applicable law or agreed to in writing, software 11e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 12e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * See the License for the specific language governing permissions and 14e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * limitations under the License. 15e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy */ 16e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 179d5316e3f56d138504565ff311145ac01621dff4Romain Guy#ifndef ANDROID_UI_OPENGL_RENDERER_H 189d5316e3f56d138504565ff311145ac01621dff4Romain Guy#define ANDROID_UI_OPENGL_RENDERER_H 199d5316e3f56d138504565ff311145ac01621dff4Romain Guy 209d5316e3f56d138504565ff311145ac01621dff4Romain Guy#include <GLES2/gl2.h> 219d5316e3f56d138504565ff311145ac01621dff4Romain Guy#include <GLES2/gl2ext.h> 2285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 23ce0537b80087a6225273040a987414b1dd081aa0Romain Guy#include <SkBitmap.h> 24f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy#include <SkMatrix.h> 25ce0537b80087a6225273040a987414b1dd081aa0Romain Guy#include <SkPaint.h> 2685bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy#include <SkXfermode.h> 27e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 28bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy#include <utils/RefBase.h> 29deba785f122a47915756ffd991f5540d952cf937Romain Guy#include <utils/ResourceTypes.h> 30bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 31f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy#include "Matrix.h" 325cbbce535744b89df5ecea95de21ee3733298260Romain Guy#include "Program.h" 33bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy#include "Rect.h" 345cbbce535744b89df5ecea95de21ee3733298260Romain Guy#include "Snapshot.h" 35ce0537b80087a6225273040a987414b1dd081aa0Romain Guy#include "TextureCache.h" 36dda570201ac851dd85af3861f7e575721d3345daRomain Guy#include "LayerCache.h" 37f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy#include "PatchCache.h" 38f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy#include "Vertex.h" 39bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 40e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guynamespace android { 419d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 42e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 43f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 44f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Support 45f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 46f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 475cbbce535744b89df5ecea95de21ee3733298260Romain Guy/** 48026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy * Structure mapping Skia xfermodes to OpenGL blending factors. 49026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy */ 50026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystruct Blender { 51026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 52026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy GLenum src; 53026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy GLenum dst; 54026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; // struct Blender 55026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 56f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 57f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Renderer 58f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 59f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 605cbbce535744b89df5ecea95de21ee3733298260Romain Guy/** 615cbbce535744b89df5ecea95de21ee3733298260Romain Guy * OpenGL renderer used to draw accelerated 2D graphics. The API is a 625cbbce535744b89df5ecea95de21ee3733298260Romain Guy * simplified version of Skia's Canvas API. 635cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 6485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyclass OpenGLRenderer { 65e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guypublic: 6685bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy OpenGLRenderer(); 6785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy ~OpenGLRenderer(); 68e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 69e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy void setViewport(int width, int height); 70e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy void prepare(); 7108ae317c21ec3086b5017672bba87420cc38a407Romain Guy 72bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy int getSaveCount() const; 73bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy int save(int flags); 74bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy void restore(); 75bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy void restoreToCount(int saveCount); 76bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 77bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int saveLayer(float left, float top, float right, float bottom, const SkPaint* p, int flags); 78bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, int flags); 79bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 80f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy void translate(float dx, float dy); 81f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy void rotate(float degrees); 82f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy void scale(float sx, float sy); 83f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 84f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy void setMatrix(SkMatrix* matrix); 85f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy void getMatrix(SkMatrix* matrix); 86f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy void concatMatrix(SkMatrix* matrix); 87f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 889d5316e3f56d138504565ff311145ac01621dff4Romain Guy const Rect& getClipBounds(); 89c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy bool quickReject(float left, float top, float right, float bottom); 90bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy bool clipRect(float left, float top, float right, float bottom); 91bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 92c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy void drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint); 93f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy void drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint); 948ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy void drawBitmap(SkBitmap* bitmap, float srcLeft, float srcTop, float srcRight, float srcBottom, 95f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, const SkPaint* paint); 96deba785f122a47915756ffd991f5540d952cf937Romain Guy void drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, float left, float top, 97deba785f122a47915756ffd991f5540d952cf937Romain Guy float right, float bottom, const SkPaint* paint); 9885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy void drawColor(int color, SkXfermode::Mode mode); 99bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy void drawRect(float left, float top, float right, float bottom, const SkPaint* paint); 10085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 10108ae317c21ec3086b5017672bba87420cc38a407Romain Guyprivate: 1025cbbce535744b89df5ecea95de21ee3733298260Romain Guy /** 1035cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Saves the current state of the renderer as a new snapshot. 1045cbbce535744b89df5ecea95de21ee3733298260Romain Guy * The new snapshot is saved in mSnapshot and the previous snapshot 1055cbbce535744b89df5ecea95de21ee3733298260Romain Guy * is linked from mSnapshot->previous. 1065cbbce535744b89df5ecea95de21ee3733298260Romain Guy * 1075cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @return The new save count. This value can be passed to #restoreToCount() 1085cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 109bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy int saveSnapshot(); 1105cbbce535744b89df5ecea95de21ee3733298260Romain Guy 1115cbbce535744b89df5ecea95de21ee3733298260Romain Guy /** 1125cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Restores the current snapshot; mSnapshot becomes mSnapshot->previous. 1135cbbce535744b89df5ecea95de21ee3733298260Romain Guy * 1145cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @return True if the clip should be also reapplied by calling 1155cbbce535744b89df5ecea95de21ee3733298260Romain Guy * #setScissorFromClip(). 1165cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 117bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy bool restoreSnapshot(); 118bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1195cbbce535744b89df5ecea95de21ee3733298260Romain Guy /** 1205cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Sets the clipping rectangle using glScissor. The clip is defined by 1215cbbce535744b89df5ecea95de21ee3733298260Romain Guy * the current snapshot's clipRect member. 1225cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 123bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy void setScissorFromClip(); 124bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1255cbbce535744b89df5ecea95de21ee3733298260Romain Guy /** 126d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * Compose the layer defined in the current snapshot with the layer 127d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * defined by the previous snapshot. 128d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * 129d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * The current snapshot *must* be a layer (flag kFlagIsLayer set.) 130d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * 131d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * @param curent The current snapshot containing the layer to compose 132d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * @param previous The previous snapshot to compose the current layer with 133d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy */ 134d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy void composeLayer(sp<Snapshot> current, sp<Snapshot> previous); 135d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 136d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy /** 137d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * Creates a new layer stored in the specified snapshot. 138d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * 139d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * @param snapshot The snapshot associated with the new layer 140d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * @param left The left coordinate of the layer 141d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * @param top The top coordinate of the layer 142d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * @param right The right coordinate of the layer 143d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * @param bottom The bottom coordinate of the layer 144d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * @param alpha The translucency of the layer 145d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * @param mode The blending mode of the layer 146d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * @param flags The layer save flags 147d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * 148d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * @return True if the layer was successfully created, false otherwise 149d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy */ 150d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy bool createLayer(sp<Snapshot> snapshot, float left, float top, float right, float bottom, 151d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha, SkXfermode::Mode mode, int flags); 152d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 153d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy /** 1545cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Draws a colored rectangle with the specified color. The specified coordinates 1555cbbce535744b89df5ecea95de21ee3733298260Romain Guy * are transformed by the current snapshot's transform matrix. 1565cbbce535744b89df5ecea95de21ee3733298260Romain Guy * 1575cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @param left The left coordinate of the rectangle 1585cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @param top The top coordinate of the rectangle 1595cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @param right The right coordinate of the rectangle 1605cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @param bottom The bottom coordinate of the rectangle 1615cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @param color The rectangle's ARGB color, defined as a packed 32 bits word 162026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy * @param mode The Skia xfermode to use 1635cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 164026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy void drawColorRect(float left, float top, float right, float bottom, 165026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color, SkXfermode::Mode mode); 1665cbbce535744b89df5ecea95de21ee3733298260Romain Guy 1675cbbce535744b89df5ecea95de21ee3733298260Romain Guy /** 1685cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Draws a textured rectangle with the specified texture. The specified coordinates 1695cbbce535744b89df5ecea95de21ee3733298260Romain Guy * are transformed by the current snapshot's transform matrix. 1705cbbce535744b89df5ecea95de21ee3733298260Romain Guy * 1715cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @param left The left coordinate of the rectangle 1725cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @param top The top coordinate of the rectangle 1735cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @param right The right coordinate of the rectangle 1745cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @param bottom The bottom coordinate of the rectangle 1755cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @param texture The texture name to map onto the rectangle 1765cbbce535744b89df5ecea95de21ee3733298260Romain Guy * @param alpha An additional translucency parameter, between 0.0f and 1.0f 177d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy * @param mode The blending mode 178c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy * @param blend True if the texture contains an alpha channel 1795cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 180bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy void drawTextureRect(float left, float top, float right, float bottom, GLuint texture, 181a979474f15b454c8e2963f239a3770e200bb227cRomain Guy float alpha, SkXfermode::Mode mode, bool blend); 182c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 183026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy /** 18482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * Draws a textured rectangle with the specified texture. The specified coordinates 18582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * are transformed by the current snapshot's transform matrix. 18682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * 18782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param left The left coordinate of the rectangle 18882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param top The top coordinate of the rectangle 18982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param right The right coordinate of the rectangle 19082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param bottom The bottom coordinate of the rectangle 19182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param texture The texture to use 19282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param paint The paint containing the alpha, blending mode, etc. 19382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy */ 194a979474f15b454c8e2963f239a3770e200bb227cRomain Guy void drawTextureRect(float left, float top, float right, float bottom, 195a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint); 19682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 19782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy /** 19882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * Draws a textured mesh with the specified texture. If the indices are omitted, the 19982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * mesh is drawn as a simple quad. 20082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * 20182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param left The left coordinate of the rectangle 20282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param top The top coordinate of the rectangle 20382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param right The right coordinate of the rectangle 20482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param bottom The bottom coordinate of the rectangle 20582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param texture The texture name to map onto the rectangle 20682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param alpha An additional translucency parameter, between 0.0f and 1.0f 20782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param mode The blending mode 20882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param blend True if the texture contains an alpha channel 20982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param vertices The vertices that define the mesh 21082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param texCoords The texture coordinates of each vertex 21182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param indices The indices of the vertices, can be NULL 21282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * @param elementsCount The number of elements in the mesh, required by indices 213f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy */ 214f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy void drawTextureMesh(float left, float top, float right, float bottom, GLuint texture, 215a979474f15b454c8e2963f239a3770e200bb227cRomain Guy float alpha, SkXfermode::Mode mode, bool blend, 216f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount = 0); 217f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 218f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy /** 219026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy * Resets the texture coordinates stored in mDrawTextureVertices. Setting the values 220026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy * back to default is achieved by calling: 221026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy * 2228ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy * resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 223026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy * 224026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy * @param u1 The left coordinate of the texture 225026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy * @param v1 The bottom coordinate of the texture 226026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy * @param u2 The right coordinate of the texture 227026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy * @param v2 The top coordinate of the texture 228026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy */ 229026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy void resetDrawTextureTexCoords(float u1, float v1, float u2, float v2); 230026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 2318ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy /** 2328ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy * Gets the alpha and xfermode out of a paint object. If the paint is null 2338ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy * alpha will be 255 and the xfermode will be SRC_OVER. 2348ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy * 2358ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy * @param paint The paint to extract values from 2368ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy * @param alpha Where to store the resulting alpha 2378ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy * @param mode Where to store the resulting xfermode 2388ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy */ 2398ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy inline void getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode); 2408ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 241f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy /** 24282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * Enable or disable blending as necessary. This function sets the appropriate 24382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy * blend function based on the specified xfermode. 24482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy */ 245a979474f15b454c8e2963f239a3770e200bb227cRomain Guy inline void chooseBlending(bool blend, SkXfermode::Mode mode, bool isPremultiplied = true); 24682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 247260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy /** 248260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy * Use the specified shader with the current GL context. If the shader is already 249260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy * in use, it will not be bound again. If it is not in use, the current shader is 250260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy * marked unused and the specified shader becomes used and becomes the new 251260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy * current shader. 2526926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy * 2536926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy * @return true If the specified shader was already in use, false otherwise. 254260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy */ 2556926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy inline bool useShader(const sp<Program>& shader); 256260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 257bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy // Dimensions of the drawing surface 258bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy int mWidth, mHeight; 259bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 26085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy // Matrix used for ortho projection in shaders 261260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mat4 mOrthoMatrix; 262bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 263c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy // Model-view matrix used to position/size objects 264c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mat4 mModelView; 265c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 266bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy // Number of saved states 267bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy int mSaveCount; 268f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy // Base state 269f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy Snapshot mFirstSnapshot; 270bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy // Current state 271bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy sp<Snapshot> mSnapshot; 2729d5316e3f56d138504565ff311145ac01621dff4Romain Guy 2739d5316e3f56d138504565ff311145ac01621dff4Romain Guy // Shaders 274260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy sp<Program> mCurrentShader; 2759d5316e3f56d138504565ff311145ac01621dff4Romain Guy sp<DrawColorProgram> mDrawColorShader; 276bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<DrawTextureProgram> mDrawTextureShader; 277026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 278026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Used to draw textured quads 279026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy TextureVertex mDrawTextureVertices[4]; 280ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 28182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy // Last known blend state 28282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy bool mBlend; 28382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum mLastSrcMode; 28482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum mLastDstMode; 28582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 28682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy // Various caches 287ce0537b80087a6225273040a987414b1dd081aa0Romain Guy TextureCache mTextureCache; 288dda570201ac851dd85af3861f7e575721d3345daRomain Guy LayerCache mLayerCache; 289f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy PatchCache mPatchCache; 290bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy}; // class OpenGLRenderer 291e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 2929d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 293e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 294e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 2959d5316e3f56d138504565ff311145ac01621dff4Romain Guy#endif // ANDROID_UI_OPENGL_RENDERER_H 296