LayerRenderer.cpp revision 98d3a64ffa13596e3ea9125bbff40c51ec96bd8d
16c319ca1275c8db892c39b48fc54864c949f9171Romain Guy/*
26c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * Copyright (C) 2011 The Android Open Source Project
36c319ca1275c8db892c39b48fc54864c949f9171Romain Guy *
46c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * Licensed under the Apache License, Version 2.0 (the "License");
56c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * you may not use this file except in compliance with the License.
66c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * You may obtain a copy of the License at
76c319ca1275c8db892c39b48fc54864c949f9171Romain Guy *
86c319ca1275c8db892c39b48fc54864c949f9171Romain Guy *      http://www.apache.org/licenses/LICENSE-2.0
96c319ca1275c8db892c39b48fc54864c949f9171Romain Guy *
106c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * Unless required by applicable law or agreed to in writing, software
116c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * distributed under the License is distributed on an "AS IS" BASIS,
126c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
136c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * See the License for the specific language governing permissions and
146c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * limitations under the License.
156c319ca1275c8db892c39b48fc54864c949f9171Romain Guy */
166c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
176c319ca1275c8db892c39b48fc54864c949f9171Romain Guy#define LOG_TAG "OpenGLRenderer"
186c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
193a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy#include <ui/Rect.h>
203a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy
2109b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy#include "LayerCache.h"
226c319ca1275c8db892c39b48fc54864c949f9171Romain Guy#include "LayerRenderer.h"
23aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy#include "Matrix.h"
241fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy#include "Properties.h"
253a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy#include "Rect.h"
266c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
276c319ca1275c8db892c39b48fc54864c949f9171Romain Guynamespace android {
286c319ca1275c8db892c39b48fc54864c949f9171Romain Guynamespace uirenderer {
296c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
306c319ca1275c8db892c39b48fc54864c949f9171Romain Guy///////////////////////////////////////////////////////////////////////////////
316c319ca1275c8db892c39b48fc54864c949f9171Romain Guy// Rendering
326c319ca1275c8db892c39b48fc54864c949f9171Romain Guy///////////////////////////////////////////////////////////////////////////////
336c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
347953745dd565167113f8cbfc461bc0521d32d870Romain GuyLayerRenderer::LayerRenderer(Layer* layer): mLayer(layer) {
357953745dd565167113f8cbfc461bc0521d32d870Romain Guy}
367953745dd565167113f8cbfc461bc0521d32d870Romain Guy
377953745dd565167113f8cbfc461bc0521d32d870Romain GuyLayerRenderer::~LayerRenderer() {
387953745dd565167113f8cbfc461bc0521d32d870Romain Guy}
397953745dd565167113f8cbfc461bc0521d32d870Romain Guy
4035643ddc689913f5b5f80ceed864470d987bd6cdRomain Guyvoid LayerRenderer::setViewport(int width, int height) {
4135643ddc689913f5b5f80ceed864470d987bd6cdRomain Guy    initViewport(width, height);
4235643ddc689913f5b5f80ceed864470d987bd6cdRomain Guy}
4335643ddc689913f5b5f80ceed864470d987bd6cdRomain Guy
4444b2fe3fc114ee5f7273c6b0fee2cc999bf244a2Chet Haaseint LayerRenderer::prepareDirty(float left, float top, float right, float bottom, bool opaque) {
459ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    LAYER_RENDERER_LOGD("Rendering into layer, fbo = %d", mLayer->getFbo());
461fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy
479ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    glBindFramebuffer(GL_FRAMEBUFFER, mLayer->getFbo());
4862687ec12cb8e0b1d4044a235b1387b9a8c3b4b4Romain Guy
4909b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy    const float width = mLayer->layer.getWidth();
5009b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy    const float height = mLayer->layer.getHeight();
5109b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy
523a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy    Rect dirty(left, top, right, bottom);
533a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy    if (dirty.isEmpty() || (dirty.left <= 0 && dirty.top <= 0 &&
5409b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy            dirty.right >= width && dirty.bottom >= height)) {
553a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy        mLayer->region.clear();
5609b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy        dirty.set(0.0f, 0.0f, width, height);
573a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy    } else {
5809b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy        dirty.intersect(0.0f, 0.0f, width, height);
593a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy        android::Rect r(dirty.left, dirty.top, dirty.right, dirty.bottom);
603a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy        mLayer->region.subtractSelf(r);
613a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy    }
62c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy
6344b2fe3fc114ee5f7273c6b0fee2cc999bf244a2Chet Haase    return OpenGLRenderer::prepareDirty(dirty.left, dirty.top, dirty.right, dirty.bottom, opaque);
646c319ca1275c8db892c39b48fc54864c949f9171Romain Guy}
656c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
666c319ca1275c8db892c39b48fc54864c949f9171Romain Guyvoid LayerRenderer::finish() {
676c319ca1275c8db892c39b48fc54864c949f9171Romain Guy    OpenGLRenderer::finish();
681fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy
69f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    generateMesh();
70f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
719ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    LAYER_RENDERER_LOGD("Finished rendering into layer, fbo = %d", mLayer->getFbo());
7242f3a4b7c35dd1ea1922356eb3611af8cde05179Romain Guy
7342f3a4b7c35dd1ea1922356eb3611af8cde05179Romain Guy    // No need to unbind our FBO, this will be taken care of by the caller
7442f3a4b7c35dd1ea1922356eb3611af8cde05179Romain Guy    // who will invoke OpenGLRenderer::resume()
7542f3a4b7c35dd1ea1922356eb3611af8cde05179Romain Guy}
7642f3a4b7c35dd1ea1922356eb3611af8cde05179Romain Guy
7742f3a4b7c35dd1ea1922356eb3611af8cde05179Romain GuyGLint LayerRenderer::getTargetFbo() {
789ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    return mLayer->getFbo();
796c319ca1275c8db892c39b48fc54864c949f9171Romain Guy}
806c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
8111cb642756093a4af901b1525375b1eb2b5c3e2bRomain Guybool LayerRenderer::suppressErrorChecks() {
8211cb642756093a4af901b1525375b1eb2b5c3e2bRomain Guy    return true;
8311cb642756093a4af901b1525375b1eb2b5c3e2bRomain Guy}
8411cb642756093a4af901b1525375b1eb2b5c3e2bRomain Guy
856c319ca1275c8db892c39b48fc54864c949f9171Romain Guy///////////////////////////////////////////////////////////////////////////////
86f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy// Dirty region tracking
87f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy///////////////////////////////////////////////////////////////////////////////
88f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
89f219da5e32e85deb442468ee9a63bb28eb198557Romain Guybool LayerRenderer::hasLayer() {
90f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    return true;
91f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy}
92f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
93f219da5e32e85deb442468ee9a63bb28eb198557Romain GuyRegion* LayerRenderer::getRegion() {
94f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    if (getSnapshot()->flags & Snapshot::kFlagFboTarget) {
95f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        return OpenGLRenderer::getRegion();
96f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    }
97f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    return &mLayer->region;
98f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy}
99f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
1008a3957d43bcae93fbb9f6b4b4c3de8abdb3c953cRomain Guy// TODO: This implementation is flawed and can generate T-junctions
1018a3957d43bcae93fbb9f6b4b4c3de8abdb3c953cRomain Guy//       in the mesh, which will in turn produce cracks when the
1028a3957d43bcae93fbb9f6b4b4c3de8abdb3c953cRomain Guy//       mesh is rotated/skewed. The easiest way to fix this would
1038a3957d43bcae93fbb9f6b4b4c3de8abdb3c953cRomain Guy//       be, for each row, to add new vertices shared with the previous
1048a3957d43bcae93fbb9f6b4b4c3de8abdb3c953cRomain Guy//       row when the two rows share an edge.
1058a3957d43bcae93fbb9f6b4b4c3de8abdb3c953cRomain Guy//       In practice, T-junctions do not appear often so this has yet
1068a3957d43bcae93fbb9f6b4b4c3de8abdb3c953cRomain Guy//       to be fixed.
107f219da5e32e85deb442468ee9a63bb28eb198557Romain Guyvoid LayerRenderer::generateMesh() {
108f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    if (mLayer->region.isRect() || mLayer->region.isEmpty()) {
109f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        if (mLayer->mesh) {
110f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy            delete mLayer->mesh;
111f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy            delete mLayer->meshIndices;
112f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
113f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy            mLayer->mesh = NULL;
114f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy            mLayer->meshIndices = NULL;
115f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy            mLayer->meshElementCount = 0;
116f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        }
11740667676e542a9daeafeac9904c30004e8706fd3Romain Guy
1189fc27819d75e24ad63d7b383d80f5cb66a577a0dRomain Guy        mLayer->setRegionAsRect();
119f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        return;
120f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    }
121f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
122f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    size_t count;
123f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    const android::Rect* rects = mLayer->region.getArray(&count);
124f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
125f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    GLsizei elementCount = count * 6;
126f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
127f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    if (mLayer->mesh && mLayer->meshElementCount < elementCount) {
128f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        delete mLayer->mesh;
129f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        delete mLayer->meshIndices;
130f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
131f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        mLayer->mesh = NULL;
132f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        mLayer->meshIndices = NULL;
133f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    }
134f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
1354f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy    bool rebuildIndices = false;
136f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    if (!mLayer->mesh) {
137f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        mLayer->mesh = new TextureVertex[count * 4];
138f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        mLayer->meshIndices = new uint16_t[elementCount];
1394f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy        rebuildIndices = true;
140f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    }
1414f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy    mLayer->meshElementCount = elementCount;
142f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
1439ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    const float texX = 1.0f / float(mLayer->getWidth());
1449ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    const float texY = 1.0f / float(mLayer->getHeight());
145f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    const float height = mLayer->layer.getHeight();
146f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
147f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    TextureVertex* mesh = mLayer->mesh;
148f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    uint16_t* indices = mLayer->meshIndices;
149f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
150f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    for (size_t i = 0; i < count; i++) {
151f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        const android::Rect* r = &rects[i];
152f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
153f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        const float u1 = r->left * texX;
154f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        const float v1 = (height - r->top) * texY;
155f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        const float u2 = r->right * texX;
156f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        const float v2 = (height - r->bottom) * texY;
157f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
158f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        TextureVertex::set(mesh++, r->left, r->top, u1, v1);
159f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        TextureVertex::set(mesh++, r->right, r->top, u2, v1);
160f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        TextureVertex::set(mesh++, r->left, r->bottom, u1, v2);
161f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy        TextureVertex::set(mesh++, r->right, r->bottom, u2, v2);
162f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
1634f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy        if (rebuildIndices) {
1644f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy            uint16_t quad = i * 4;
1654f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy            int index = i * 6;
1664f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy            indices[index    ] = quad;       // top-left
1674f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy            indices[index + 1] = quad + 1;   // top-right
1684f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy            indices[index + 2] = quad + 2;   // bottom-left
1694f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy            indices[index + 3] = quad + 2;   // bottom-left
1704f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy            indices[index + 4] = quad + 1;   // top-right
1714f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy            indices[index + 5] = quad + 3;   // bottom-right
1724f09f5417b5c14fd31336dacfff86972e7885a03Romain Guy        }
173f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy    }
174f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy}
175f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy
176f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy///////////////////////////////////////////////////////////////////////////////
177f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy// Layers management
1786c319ca1275c8db892c39b48fc54864c949f9171Romain Guy///////////////////////////////////////////////////////////////////////////////
1796c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
180ada830f639591b99c3e40de22b07296c7932a33fRomain GuyLayer* LayerRenderer::createLayer(uint32_t width, uint32_t height, bool isOpaque) {
181eea60692b060737faeaa02bb30f5b79e2202b482Romain Guy    LAYER_RENDERER_LOGD("Requesting new render layer %dx%d", width, height);
1821fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy
183a1d3c91afbd52c7e8b01f4a9060c5459f02ae7a5Romain Guy    Caches& caches = Caches::getInstance();
184a1d3c91afbd52c7e8b01f4a9060c5459f02ae7a5Romain Guy    GLuint fbo = caches.fboCache.get();
18509b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy    if (!fbo) {
1868564c8da817a845353d213acd8636b76f567b234Steve Block        ALOGW("Could not obtain an FBO");
18709b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy        return NULL;
1881fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy    }
1891fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy
190a1d3c91afbd52c7e8b01f4a9060c5459f02ae7a5Romain Guy    caches.activeTexture(0);
191a1d3c91afbd52c7e8b01f4a9060c5459f02ae7a5Romain Guy    Layer* layer = caches.layerCache.get(width, height);
19209b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy    if (!layer) {
1938564c8da817a845353d213acd8636b76f567b234Steve Block        ALOGW("Could not obtain a layer");
19409b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy        return NULL;
19509b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy    }
1966c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
1979ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->setFbo(fbo);
19809b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy    layer->layer.set(0.0f, 0.0f, width, height);
1999ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->texCoords.set(0.0f, height / float(layer->getHeight()),
2009ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy            width / float(layer->getWidth()), 0.0f);
2019ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->setAlpha(255, SkXfermode::kSrcOver_Mode);
2029ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->setBlend(!isOpaque);
2039ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->setColorFilter(NULL);
20409b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy    layer->region.clear();
2056c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
20609b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy    GLuint previousFbo;
20709b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy    glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &previousFbo);
2086c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
2099ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    glBindFramebuffer(GL_FRAMEBUFFER, layer->getFbo());
2109ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->bindTexture();
2116c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
21209b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy    // Initialize the texture if needed
2139ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    if (layer->isEmpty()) {
2149ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        layer->setEmpty(false);
2159ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        layer->allocateTexture(GL_RGBA, GL_UNSIGNED_BYTE);
2166c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
21709b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy        if (glGetError() != GL_NO_ERROR) {
2185baa3a62a97544669fba6d65a11c07f252e654ddSteve Block            ALOGD("Could not allocate texture for layer (fbo=%d %dx%d)",
2195cd5c3f7e4df99f47e3def6e3707b9eb8205aef3Romain Guy                    fbo, width, height);
2209ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy
22109b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy            glBindFramebuffer(GL_FRAMEBUFFER, previousFbo);
2229ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy
223603f6de35f21d74ae242d52d501f4f5c25ff4f4cChet Haase            Caches::getInstance().resourceCache.decrementRefcount(layer);
2249ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy
22509b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy            return NULL;
22609b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy        }
2276c319ca1275c8db892c39b48fc54864c949f9171Romain Guy    }
2286c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
2296c319ca1275c8db892c39b48fc54864c949f9171Romain Guy    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2309ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy            layer->getTexture(), 0);
2316c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
232586cae3ac69c0c667fbf8a954edbd399f620a717Romain Guy    caches.disableScissor();
23340a787f89a6f4c20f2c7fce29e5bc53954305f34Romain Guy    glClear(GL_COLOR_BUFFER_BIT);
23440a787f89a6f4c20f2c7fce29e5bc53954305f34Romain Guy
2356c319ca1275c8db892c39b48fc54864c949f9171Romain Guy    glBindFramebuffer(GL_FRAMEBUFFER, previousFbo);
2366c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
237ada830f639591b99c3e40de22b07296c7932a33fRomain Guy    return layer;
2386c319ca1275c8db892c39b48fc54864c949f9171Romain Guy}
2396c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
240ada830f639591b99c3e40de22b07296c7932a33fRomain Guybool LayerRenderer::resizeLayer(Layer* layer, uint32_t width, uint32_t height) {
241ada830f639591b99c3e40de22b07296c7932a33fRomain Guy    if (layer) {
2429ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        LAYER_RENDERER_LOGD("Resizing layer fbo = %d to %dx%d", layer->getFbo(), width, height);
2431fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy
24409b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy        if (Caches::getInstance().layerCache.resize(layer, width, height)) {
24509b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy            layer->layer.set(0.0f, 0.0f, width, height);
2469ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy            layer->texCoords.set(0.0f, height / float(layer->getHeight()),
2479ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy                    width / float(layer->getWidth()), 0.0f);
24809b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy        } else {
249603f6de35f21d74ae242d52d501f4f5c25ff4f4cChet Haase            Caches::getInstance().resourceCache.decrementRefcount(layer);
250ada830f639591b99c3e40de22b07296c7932a33fRomain Guy            return false;
251ada830f639591b99c3e40de22b07296c7932a33fRomain Guy        }
252ada830f639591b99c3e40de22b07296c7932a33fRomain Guy    }
25309b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy
254ada830f639591b99c3e40de22b07296c7932a33fRomain Guy    return true;
2556c319ca1275c8db892c39b48fc54864c949f9171Romain Guy}
2566c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
2574a5a71518a71a44dbccb3af9a08b82056ea748b3Romain GuyLayer* LayerRenderer::createTextureLayer(bool isOpaque) {
2584a5a71518a71a44dbccb3af9a08b82056ea748b3Romain Guy    LAYER_RENDERER_LOGD("Creating new texture layer");
2594a5a71518a71a44dbccb3af9a08b82056ea748b3Romain Guy
2604a5a71518a71a44dbccb3af9a08b82056ea748b3Romain Guy    Layer* layer = new Layer(0, 0);
2619ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->setCacheable(false);
2629ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->setTextureLayer(true);
2639ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->setBlend(!isOpaque);
2649ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->setEmpty(true);
2659ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->setFbo(0);
2669ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->setAlpha(255, SkXfermode::kSrcOver_Mode);
2674a5a71518a71a44dbccb3af9a08b82056ea748b3Romain Guy    layer->layer.set(0.0f, 0.0f, 0.0f, 0.0f);
268a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy    layer->texCoords.set(0.0f, 1.0f, 1.0f, 0.0f);
2694a5a71518a71a44dbccb3af9a08b82056ea748b3Romain Guy    layer->region.clear();
2709ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->setRenderTarget(GL_NONE); // see ::updateTextureLayer()
2714a5a71518a71a44dbccb3af9a08b82056ea748b3Romain Guy
272a1d3c91afbd52c7e8b01f4a9060c5459f02ae7a5Romain Guy    Caches::getInstance().activeTexture(0);
2739ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy    layer->generateTexture();
2744a5a71518a71a44dbccb3af9a08b82056ea748b3Romain Guy
2754a5a71518a71a44dbccb3af9a08b82056ea748b3Romain Guy    return layer;
2764a5a71518a71a44dbccb3af9a08b82056ea748b3Romain Guy}
2774a5a71518a71a44dbccb3af9a08b82056ea748b3Romain Guy
278aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyvoid LayerRenderer::updateTextureLayer(Layer* layer, uint32_t width, uint32_t height,
279a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy        bool isOpaque, GLenum renderTarget, float* transform) {
280aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy    if (layer) {
2819ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        layer->setBlend(!isOpaque);
2829ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        layer->setSize(width, height);
283aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy        layer->layer.set(0.0f, 0.0f, width, height);
284aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy        layer->region.set(width, height);
285aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy        layer->regionRect.set(0.0f, 0.0f, width, height);
2869ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        layer->getTexTransform().load(transform);
2878f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy
2889ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        if (renderTarget != layer->getRenderTarget()) {
2899ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy            layer->setRenderTarget(renderTarget);
2909ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy            layer->bindTexture();
291d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy            layer->setFilter(GL_NEAREST, false, true);
292d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy            layer->setWrap(GL_CLAMP_TO_EDGE, false, true);
2934a5a71518a71a44dbccb3af9a08b82056ea748b3Romain Guy        }
294aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy    }
295aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy}
296aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy
297ada830f639591b99c3e40de22b07296c7932a33fRomain Guyvoid LayerRenderer::destroyLayer(Layer* layer) {
298ada830f639591b99c3e40de22b07296c7932a33fRomain Guy    if (layer) {
299eea60692b060737faeaa02bb30f5b79e2202b482Romain Guy        LAYER_RENDERER_LOGD("Recycling layer, %dx%d fbo = %d",
300eea60692b060737faeaa02bb30f5b79e2202b482Romain Guy                layer->getWidth(), layer->getHeight(), layer->getFbo());
301ada830f639591b99c3e40de22b07296c7932a33fRomain Guy
30209b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy        if (!Caches::getInstance().layerCache.put(layer)) {
303eea60692b060737faeaa02bb30f5b79e2202b482Romain Guy            LAYER_RENDERER_LOGD("  Destroyed!");
304603f6de35f21d74ae242d52d501f4f5c25ff4f4cChet Haase            Caches::getInstance().resourceCache.decrementRefcount(layer);
30509b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy        } else {
306eea60692b060737faeaa02bb30f5b79e2202b482Romain Guy            LAYER_RENDERER_LOGD("  Cached!");
30765b345fa22b878e141b8fd8ece9c208df00fa40fRomain Guy#if DEBUG_LAYER_RENDERER
308eea60692b060737faeaa02bb30f5b79e2202b482Romain Guy            Caches::getInstance().layerCache.dump();
309eea60692b060737faeaa02bb30f5b79e2202b482Romain Guy#endif
31098d3a64ffa13596e3ea9125bbff40c51ec96bd8dChet Haase            layer->removeFbo();
31109b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy            layer->region.clear();
31209b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy        }
313ada830f639591b99c3e40de22b07296c7932a33fRomain Guy    }
3146c319ca1275c8db892c39b48fc54864c949f9171Romain Guy}
3156c319ca1275c8db892c39b48fc54864c949f9171Romain Guy
316ada830f639591b99c3e40de22b07296c7932a33fRomain Guyvoid LayerRenderer::destroyLayerDeferred(Layer* layer) {
317ada830f639591b99c3e40de22b07296c7932a33fRomain Guy    if (layer) {
3189ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        LAYER_RENDERER_LOGD("Deferring layer destruction, fbo = %d", layer->getFbo());
31956257aff8a55c847be72be9924c392033fd8151dDave Burke
320ada830f639591b99c3e40de22b07296c7932a33fRomain Guy        Caches::getInstance().deleteLayerDeferred(layer);
321ada830f639591b99c3e40de22b07296c7932a33fRomain Guy    }
32257066eb64c9a190d1afc87bb060bbb2d31e5b86cRomain Guy}
32357066eb64c9a190d1afc87bb060bbb2d31e5b86cRomain Guy
3249c4b79af221b53f602f946faa9ff317a596a0c39Romain Guyvoid LayerRenderer::flushLayer(Layer* layer) {
3259c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy#ifdef GL_EXT_discard_framebuffer
3269c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy    GLuint fbo = layer->getFbo();
3279c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy    if (layer && fbo) {
3289c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy        // If possible, discard any enqueud operations on deferred
3299c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy        // rendering architectures
3309c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy        if (Caches::getInstance().extensions.hasDiscardFramebuffer()) {
3319c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy            GLuint previousFbo;
3329c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy            glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &previousFbo);
3339c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy            if (fbo != previousFbo) glBindFramebuffer(GL_FRAMEBUFFER, fbo);
33445e4c3df6c00ac98ff6144de9af574877d4fff19Romain Guy
33545e4c3df6c00ac98ff6144de9af574877d4fff19Romain Guy            const GLenum attachments[] = { GL_COLOR_ATTACHMENT0 };
33645e4c3df6c00ac98ff6144de9af574877d4fff19Romain Guy            glDiscardFramebufferEXT(GL_FRAMEBUFFER, 1, attachments);
3379c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy
3389c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy            if (fbo != previousFbo) glBindFramebuffer(GL_FRAMEBUFFER, previousFbo);
3399c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy        }
3409c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy    }
3419c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy#endif
3429c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy}
3439c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy
34477a811610f99e21da7f88dafef60d09f345d0506Romain Guybool LayerRenderer::copyLayer(Layer* layer, SkBitmap* bitmap) {
34577a811610f99e21da7f88dafef60d09f345d0506Romain Guy    Caches& caches = Caches::getInstance();
346710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craik    if (layer && bitmap->width() <= caches.maxTextureSize &&
34777a811610f99e21da7f88dafef60d09f345d0506Romain Guy            bitmap->height() <= caches.maxTextureSize) {
34877a811610f99e21da7f88dafef60d09f345d0506Romain Guy
34977a811610f99e21da7f88dafef60d09f345d0506Romain Guy        GLuint fbo = caches.fboCache.get();
35077a811610f99e21da7f88dafef60d09f345d0506Romain Guy        if (!fbo) {
3518564c8da817a845353d213acd8636b76f567b234Steve Block            ALOGW("Could not obtain an FBO");
35277a811610f99e21da7f88dafef60d09f345d0506Romain Guy            return false;
35377a811610f99e21da7f88dafef60d09f345d0506Romain Guy        }
35477a811610f99e21da7f88dafef60d09f345d0506Romain Guy
355d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy        SkAutoLockPixels alp(*bitmap);
356d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy
35777a811610f99e21da7f88dafef60d09f345d0506Romain Guy        GLuint texture;
35877a811610f99e21da7f88dafef60d09f345d0506Romain Guy        GLuint previousFbo;
359710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craik        GLuint previousViewport[4];
36077a811610f99e21da7f88dafef60d09f345d0506Romain Guy
36177a811610f99e21da7f88dafef60d09f345d0506Romain Guy        GLenum format;
36277a811610f99e21da7f88dafef60d09f345d0506Romain Guy        GLenum type;
36377a811610f99e21da7f88dafef60d09f345d0506Romain Guy
364d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy        GLenum error = GL_NO_ERROR;
365d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy        bool status = false;
366d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy
36777a811610f99e21da7f88dafef60d09f345d0506Romain Guy        switch (bitmap->config()) {
36877a811610f99e21da7f88dafef60d09f345d0506Romain Guy            case SkBitmap::kA8_Config:
36977a811610f99e21da7f88dafef60d09f345d0506Romain Guy                format = GL_ALPHA;
37077a811610f99e21da7f88dafef60d09f345d0506Romain Guy                type = GL_UNSIGNED_BYTE;
37177a811610f99e21da7f88dafef60d09f345d0506Romain Guy                break;
37277a811610f99e21da7f88dafef60d09f345d0506Romain Guy            case SkBitmap::kRGB_565_Config:
37377a811610f99e21da7f88dafef60d09f345d0506Romain Guy                format = GL_RGB;
37477a811610f99e21da7f88dafef60d09f345d0506Romain Guy                type = GL_UNSIGNED_SHORT_5_6_5;
37577a811610f99e21da7f88dafef60d09f345d0506Romain Guy                break;
37677a811610f99e21da7f88dafef60d09f345d0506Romain Guy            case SkBitmap::kARGB_4444_Config:
37777a811610f99e21da7f88dafef60d09f345d0506Romain Guy                format = GL_RGBA;
37877a811610f99e21da7f88dafef60d09f345d0506Romain Guy                type = GL_UNSIGNED_SHORT_4_4_4_4;
37977a811610f99e21da7f88dafef60d09f345d0506Romain Guy                break;
38077a811610f99e21da7f88dafef60d09f345d0506Romain Guy            case SkBitmap::kARGB_8888_Config:
38177a811610f99e21da7f88dafef60d09f345d0506Romain Guy            default:
38277a811610f99e21da7f88dafef60d09f345d0506Romain Guy                format = GL_RGBA;
38377a811610f99e21da7f88dafef60d09f345d0506Romain Guy                type = GL_UNSIGNED_BYTE;
38477a811610f99e21da7f88dafef60d09f345d0506Romain Guy                break;
38577a811610f99e21da7f88dafef60d09f345d0506Romain Guy        }
38677a811610f99e21da7f88dafef60d09f345d0506Romain Guy
3879ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        float alpha = layer->getAlpha();
3889ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        SkXfermode::Mode mode = layer->getMode();
389710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craik        GLuint previousLayerFbo = layer->getFbo();
390d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy
3919ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        layer->setAlpha(255, SkXfermode::kSrc_Mode);
3929ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        layer->setFbo(fbo);
393d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy
39477a811610f99e21da7f88dafef60d09f345d0506Romain Guy        glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &previousFbo);
395710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craik        glGetIntegerv(GL_VIEWPORT, (GLint*) &previousViewport);
39677a811610f99e21da7f88dafef60d09f345d0506Romain Guy        glBindFramebuffer(GL_FRAMEBUFFER, fbo);
39777a811610f99e21da7f88dafef60d09f345d0506Romain Guy
39877a811610f99e21da7f88dafef60d09f345d0506Romain Guy        glGenTextures(1, &texture);
399d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy        if ((error = glGetError()) != GL_NO_ERROR) goto error;
40077a811610f99e21da7f88dafef60d09f345d0506Romain Guy
401a1d3c91afbd52c7e8b01f4a9060c5459f02ae7a5Romain Guy        caches.activeTexture(0);
40277a811610f99e21da7f88dafef60d09f345d0506Romain Guy        glBindTexture(GL_TEXTURE_2D, texture);
40377a811610f99e21da7f88dafef60d09f345d0506Romain Guy
404e49d7ec36132f33b7c9e2c044ab9dd3585aa3747Romain Guy        glPixelStorei(GL_PACK_ALIGNMENT, bitmap->bytesPerPixel());
405e49d7ec36132f33b7c9e2c044ab9dd3585aa3747Romain Guy
406ec19b4a764d512091a780fc93ced567dfbf80914Romain Guy        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
407ec19b4a764d512091a780fc93ced567dfbf80914Romain Guy        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
40877a811610f99e21da7f88dafef60d09f345d0506Romain Guy
40977a811610f99e21da7f88dafef60d09f345d0506Romain Guy        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
41077a811610f99e21da7f88dafef60d09f345d0506Romain Guy        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
41177a811610f99e21da7f88dafef60d09f345d0506Romain Guy
41277a811610f99e21da7f88dafef60d09f345d0506Romain Guy        glTexImage2D(GL_TEXTURE_2D, 0, format, bitmap->width(), bitmap->height(),
41377a811610f99e21da7f88dafef60d09f345d0506Romain Guy                0, format, type, NULL);
414d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy        if ((error = glGetError()) != GL_NO_ERROR) goto error;
415d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy
41677a811610f99e21da7f88dafef60d09f345d0506Romain Guy        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
41777a811610f99e21da7f88dafef60d09f345d0506Romain Guy                GL_TEXTURE_2D, texture, 0);
418d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy        if ((error = glGetError()) != GL_NO_ERROR) goto error;
41977a811610f99e21da7f88dafef60d09f345d0506Romain Guy
420d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy        {
421d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy            LayerRenderer renderer(layer);
422d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy            renderer.setViewport(bitmap->width(), bitmap->height());
423d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy            renderer.OpenGLRenderer::prepareDirty(0.0f, 0.0f,
4249ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy                    bitmap->width(), bitmap->height(), !layer->isBlend());
425a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy
426586cae3ac69c0c667fbf8a954edbd399f620a717Romain Guy            caches.disableScissor();
427a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy            renderer.translate(0.0f, bitmap->height());
428a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy            renderer.scale(1.0f, -1.0f);
429a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy
430a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy            mat4 texTransform(layer->getTexTransform());
431a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy
432a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy            mat4 invert;
433a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy            invert.translate(0.0f, 1.0f, 0.0f);
434a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy            invert.scale(1.0f, -1.0f, 1.0f);
435a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy            layer->getTexTransform().multiply(invert);
436a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy
437d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy            if ((error = glGetError()) != GL_NO_ERROR) goto error;
43877a811610f99e21da7f88dafef60d09f345d0506Romain Guy
439d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy            {
440d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy                Rect bounds;
441d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy                bounds.set(0.0f, 0.0f, bitmap->width(), bitmap->height());
442d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy                renderer.drawTextureLayer(layer, bounds);
44377a811610f99e21da7f88dafef60d09f345d0506Romain Guy
444d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy                glReadPixels(0, 0, bitmap->width(), bitmap->height(), format,
445d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy                        type, bitmap->getPixels());
44677a811610f99e21da7f88dafef60d09f345d0506Romain Guy
447d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy                if ((error = glGetError()) != GL_NO_ERROR) goto error;
448d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy            }
44977a811610f99e21da7f88dafef60d09f345d0506Romain Guy
450a9dc86b21defc26db0d71f276aff5c3af0b62ff5Romain Guy            layer->getTexTransform().load(texTransform);
451d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy            status = true;
452d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy        }
45377a811610f99e21da7f88dafef60d09f345d0506Romain Guy
454d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guyerror:
455d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy#if DEBUG_OPENGL
456d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy        if (error != GL_NO_ERROR) {
4575baa3a62a97544669fba6d65a11c07f252e654ddSteve Block            ALOGD("GL error while copying layer into bitmap = 0x%x", error);
458d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy        }
459d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy#endif
46077a811610f99e21da7f88dafef60d09f345d0506Romain Guy
46177a811610f99e21da7f88dafef60d09f345d0506Romain Guy        glBindFramebuffer(GL_FRAMEBUFFER, previousFbo);
4629ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy        layer->setAlpha(alpha, mode);
463710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craik        layer->setFbo(previousLayerFbo);
46477a811610f99e21da7f88dafef60d09f345d0506Romain Guy        glDeleteTextures(1, &texture);
46577a811610f99e21da7f88dafef60d09f345d0506Romain Guy        caches.fboCache.put(fbo);
466710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craik        glViewport(previousViewport[0], previousViewport[1],
467710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craik                previousViewport[2], previousViewport[3]);
46877a811610f99e21da7f88dafef60d09f345d0506Romain Guy
469d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy        return status;
47077a811610f99e21da7f88dafef60d09f345d0506Romain Guy    }
47177a811610f99e21da7f88dafef60d09f345d0506Romain Guy    return false;
47277a811610f99e21da7f88dafef60d09f345d0506Romain Guy}
47377a811610f99e21da7f88dafef60d09f345d0506Romain Guy
4746c319ca1275c8db892c39b48fc54864c949f9171Romain Guy}; // namespace uirenderer
4756c319ca1275c8db892c39b48fc54864c949f9171Romain Guy}; // namespace android
476