459 lines
14 KiB
C++
Executable file
459 lines
14 KiB
C++
Executable file
/*
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* Copyright 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#undef LOG_TAG
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#define LOG_TAG "RenderEngine"
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#define ATRACE_TAG ATRACE_TAG_GRAPHICS
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#include <GLES2/gl2.h>
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#include <GLES2/gl2ext.h>
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#include <ui/ColorSpace.h>
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#include <ui/DebugUtils.h>
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#include <ui/Rect.h>
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#include <utils/String8.h>
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#include <utils/Trace.h>
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#include <cutils/compiler.h>
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#include <gui/ISurfaceComposer.h>
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#include <cutils/properties.h>
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#include <math.h>
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#include "GLES20RenderEngine.h"
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#include "Program.h"
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#include "ProgramCache.h"
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#include "Description.h"
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#include "Mesh.h"
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#include "Texture.h"
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#include <sstream>
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#include <fstream>
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// ---------------------------------------------------------------------------
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#ifdef USE_HWC2
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bool checkGlError(const char* op, int lineNumber) {
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bool errorFound = false;
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GLint error = glGetError();
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while (error != GL_NO_ERROR) {
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errorFound = true;
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error = glGetError();
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ALOGV("after %s() (line # %d) glError (0x%x)\n", op, lineNumber, error);
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}
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return errorFound;
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}
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static constexpr bool outputDebugPPMs = false;
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void writePPM(const char* basename, GLuint width, GLuint height) {
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ALOGV("writePPM #%s: %d x %d", basename, width, height);
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std::vector<GLubyte> pixels(width * height * 4);
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std::vector<GLubyte> outBuffer(width * height * 3);
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// TODO(courtneygo): We can now have float formats, need
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// to remove this code or update to support.
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// Make returned pixels fit in uint32_t, one byte per component
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glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, pixels.data());
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if (checkGlError(__FUNCTION__, __LINE__)) {
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return;
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}
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std::string filename(basename);
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filename.append(".ppm");
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std::ofstream file(filename.c_str(), std::ios::binary);
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if (!file.is_open()) {
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ALOGE("Unable to open file: %s", filename.c_str());
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ALOGE("You may need to do: \"adb shell setenforce 0\" to enable "
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"surfaceflinger to write debug images");
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return;
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}
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file << "P6\n";
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file << width << "\n";
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file << height << "\n";
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file << 255 << "\n";
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auto ptr = reinterpret_cast<char*>(pixels.data());
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auto outPtr = reinterpret_cast<char*>(outBuffer.data());
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for (int y = height - 1; y >= 0; y--) {
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char* data = ptr + y * width * sizeof(uint32_t);
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for (GLuint x = 0; x < width; x++) {
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// Only copy R, G and B components
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outPtr[0] = data[0];
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outPtr[1] = data[1];
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outPtr[2] = data[2];
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data += sizeof(uint32_t);
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outPtr += 3;
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}
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}
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file.write(reinterpret_cast<char*>(outBuffer.data()), outBuffer.size());
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}
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#endif
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// ---------------------------------------------------------------------------
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namespace android {
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// ---------------------------------------------------------------------------
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GLES20RenderEngine::GLES20RenderEngine(uint32_t featureFlags) :
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mVpWidth(0),
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mVpHeight(0),
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mPlatformHasWideColor((featureFlags & WIDE_COLOR_SUPPORT) != 0) {
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glGetIntegerv(GL_MAX_TEXTURE_SIZE, &mMaxTextureSize);
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glGetIntegerv(GL_MAX_VIEWPORT_DIMS, mMaxViewportDims);
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glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
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glPixelStorei(GL_PACK_ALIGNMENT, 4);
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const uint16_t protTexData[] = { 0 };
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glGenTextures(1, &mProtectedTexName);
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glBindTexture(GL_TEXTURE_2D, mProtectedTexName);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0,
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GL_RGB, GL_UNSIGNED_SHORT_5_6_5, protTexData);
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//mColorBlindnessCorrection = M;
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#ifdef USE_HWC2
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if (mPlatformHasWideColor) {
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// Compute sRGB to DisplayP3 color transform
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// NOTE: For now, we are limiting wide-color support to
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// Display-P3 only.
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mat3 srgbToP3 = ColorSpaceConnector(ColorSpace::sRGB(), ColorSpace::DisplayP3()).getTransform();
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// color transform needs to be expanded to 4x4 to be what the shader wants
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// mat has an initializer that expands mat3 to mat4, but
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// not an assignment operator
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mat4 gamutTransform(srgbToP3);
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mSrgbToDisplayP3 = gamutTransform;
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}
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#endif
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}
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GLES20RenderEngine::~GLES20RenderEngine() {
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}
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size_t GLES20RenderEngine::getMaxTextureSize() const {
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return mMaxTextureSize;
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}
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size_t GLES20RenderEngine::getMaxViewportDims() const {
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return
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mMaxViewportDims[0] < mMaxViewportDims[1] ?
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mMaxViewportDims[0] : mMaxViewportDims[1];
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}
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void GLES20RenderEngine::setViewportAndProjection(
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size_t vpw, size_t vph, Rect sourceCrop, size_t hwh, bool yswap,
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Transform::orientation_flags rotation) {
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size_t l = sourceCrop.left;
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size_t r = sourceCrop.right;
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// In GL, (0, 0) is the bottom-left corner, so flip y coordinates
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size_t t = hwh - sourceCrop.top;
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size_t b = hwh - sourceCrop.bottom;
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const mat4 rot90(0,-1,0,0, 1,0,0,0, 0,0,1,0, 0,0,0,1);
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const mat4 rot270(0,1,0,0, -1,0,0,0, 0,0,1,0, 0,0,0,1);
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mat4 m;
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if (yswap) {
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// m = mat4::ortho(l, r, t, b, 0, 1);
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char property[PROPERTY_VALUE_MAX];
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property_get("ro.sf.rotation", property, 0);
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switch (atoi(property)) {
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case 90:
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// ALOGD("----------90.\n");
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m = mat4::ortho(l, r, t, b, 0, 1);
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m = rot90 * m;
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break;
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case 180:
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// ALOGD("----------180.\n");
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m = mat4::ortho(r, l, b, t,0, 1);
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break;
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case 270:
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// ALOGD("----------270.\n");
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m = mat4::ortho(l, r, t, b, 0, 1);
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m = rot270 * m;
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break;
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default:
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// ALOGD("----------0.\n");
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m = mat4::ortho(l, r, t, b, 0, 1);
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break;
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}
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} else {
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m = mat4::ortho(l, r, b, t, 0, 1);
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}
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// Apply custom rotation to the projection.
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float rot90InRadians = 2.0f * static_cast<float>(M_PI) / 4.0f;
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switch (rotation) {
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case Transform::ROT_0:
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break;
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case Transform::ROT_90:
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m = mat4::rotate(rot90InRadians, vec3(0,0,1)) * m;
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break;
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case Transform::ROT_180:
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m = mat4::rotate(rot90InRadians * 2.0f, vec3(0,0,1)) * m;
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break;
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case Transform::ROT_270:
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m = mat4::rotate(rot90InRadians * 3.0f, vec3(0,0,1)) * m;
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break;
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default:
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break;
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}
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glViewport(0, 0, vpw, vph);
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mState.setProjectionMatrix(m);
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mVpWidth = vpw;
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mVpHeight = vph;
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}
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#ifdef USE_HWC2
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void GLES20RenderEngine::setupLayerBlending(bool premultipliedAlpha,
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bool opaque, float alpha) {
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#else
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void GLES20RenderEngine::setupLayerBlending(
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bool premultipliedAlpha, bool opaque, int alpha) {
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#endif
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mState.setPremultipliedAlpha(premultipliedAlpha);
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mState.setOpaque(opaque);
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#ifdef USE_HWC2
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mState.setPlaneAlpha(alpha);
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if (alpha < 1.0f || !opaque) {
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#else
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mState.setPlaneAlpha(alpha / 255.0f);
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if (alpha < 0xFF || !opaque) {
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#endif
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glEnable(GL_BLEND);
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glBlendFunc(premultipliedAlpha ? GL_ONE : GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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} else {
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glDisable(GL_BLEND);
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}
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}
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#ifdef USE_HWC2
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void GLES20RenderEngine::setupDimLayerBlending(float alpha) {
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#else
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void GLES20RenderEngine::setupDimLayerBlending(int alpha) {
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#endif
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mState.setPlaneAlpha(1.0f);
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mState.setPremultipliedAlpha(true);
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mState.setOpaque(false);
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#ifdef USE_HWC2
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mState.setColor(0, 0, 0, alpha);
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#else
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mState.setColor(0, 0, 0, alpha/255.0f);
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#endif
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mState.disableTexture();
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#ifdef USE_HWC2
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if (alpha == 1.0f) {
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#else
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if (alpha == 0xFF) {
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#endif
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glDisable(GL_BLEND);
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} else {
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glEnable(GL_BLEND);
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glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
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}
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}
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#ifdef USE_HWC2
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void GLES20RenderEngine::setColorMode(android_color_mode mode) {
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ALOGV("setColorMode: %s (0x%x)", decodeColorMode(mode).c_str(), mode);
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if (mColorMode == mode) return;
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if (!mPlatformHasWideColor || !mDisplayHasWideColor || mode == HAL_COLOR_MODE_SRGB ||
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mode == HAL_COLOR_MODE_NATIVE) {
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// We are returning back to our default color_mode
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mUseWideColor = false;
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mWideColorFrameCount = 0;
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} else {
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mUseWideColor = true;
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}
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mColorMode = mode;
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}
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void GLES20RenderEngine::setSourceDataSpace(android_dataspace source) {
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if (source == HAL_DATASPACE_UNKNOWN) {
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// Treat UNKNOWN as SRGB
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source = HAL_DATASPACE_V0_SRGB;
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}
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mDataSpace = source;
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}
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void GLES20RenderEngine::setWideColor(bool hasWideColor) {
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ALOGV("setWideColor: %s", hasWideColor ? "true" : "false");
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mDisplayHasWideColor = hasWideColor;
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}
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bool GLES20RenderEngine::usesWideColor() {
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return mUseWideColor;
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}
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#endif
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void GLES20RenderEngine::setupLayerTexturing(const Texture& texture) {
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GLuint target = texture.getTextureTarget();
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glBindTexture(target, texture.getTextureName());
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GLenum filter = GL_NEAREST;
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if (texture.getFiltering()) {
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filter = GL_LINEAR;
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}
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glTexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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glTexParameteri(target, GL_TEXTURE_MAG_FILTER, filter);
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glTexParameteri(target, GL_TEXTURE_MIN_FILTER, filter);
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mState.setTexture(texture);
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}
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void GLES20RenderEngine::setupLayerBlackedOut() {
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glBindTexture(GL_TEXTURE_2D, mProtectedTexName);
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Texture texture(Texture::TEXTURE_2D, mProtectedTexName);
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texture.setDimensions(1, 1); // FIXME: we should get that from somewhere
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mState.setTexture(texture);
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}
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mat4 GLES20RenderEngine::setupColorTransform(const mat4& colorTransform) {
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mat4 oldTransform = mState.getColorMatrix();
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mState.setColorMatrix(colorTransform);
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return oldTransform;
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}
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void GLES20RenderEngine::disableTexturing() {
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mState.disableTexture();
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}
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void GLES20RenderEngine::disableBlending() {
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glDisable(GL_BLEND);
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}
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void GLES20RenderEngine::bindImageAsFramebuffer(EGLImageKHR image,
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uint32_t* texName, uint32_t* fbName, uint32_t* status) {
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GLuint tname, name;
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// turn our EGLImage into a texture
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glGenTextures(1, &tname);
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glBindTexture(GL_TEXTURE_2D, tname);
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glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image);
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// create a Framebuffer Object to render into
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glGenFramebuffers(1, &name);
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glBindFramebuffer(GL_FRAMEBUFFER, name);
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tname, 0);
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*status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
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*texName = tname;
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*fbName = name;
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}
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void GLES20RenderEngine::unbindFramebuffer(uint32_t texName, uint32_t fbName) {
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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glDeleteFramebuffers(1, &fbName);
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glDeleteTextures(1, &texName);
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}
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void GLES20RenderEngine::setupFillWithColor(float r, float g, float b, float a) {
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mState.setPlaneAlpha(1.0f);
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mState.setPremultipliedAlpha(true);
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mState.setOpaque(false);
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mState.setColor(r, g, b, a);
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mState.disableTexture();
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glDisable(GL_BLEND);
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}
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void GLES20RenderEngine::drawMesh(const Mesh& mesh) {
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if (mesh.getTexCoordsSize()) {
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glEnableVertexAttribArray(Program::texCoords);
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glVertexAttribPointer(Program::texCoords,
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mesh.getTexCoordsSize(),
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GL_FLOAT, GL_FALSE,
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mesh.getByteStride(),
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mesh.getTexCoords());
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}
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glVertexAttribPointer(Program::position,
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mesh.getVertexSize(),
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GL_FLOAT, GL_FALSE,
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mesh.getByteStride(),
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mesh.getPositions());
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#ifdef USE_HWC2
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if (usesWideColor()) {
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Description wideColorState = mState;
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if (mDataSpace != HAL_DATASPACE_DISPLAY_P3) {
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wideColorState.setColorMatrix(mState.getColorMatrix() * mSrgbToDisplayP3);
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wideColorState.setWideGamut(true);
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ALOGV("drawMesh: gamut transform applied");
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}
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ProgramCache::getInstance().useProgram(wideColorState);
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glDrawArrays(mesh.getPrimitive(), 0, mesh.getVertexCount());
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if (outputDebugPPMs) {
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std::ostringstream out;
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out << "/data/texture_out" << mWideColorFrameCount++;
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writePPM(out.str().c_str(), mVpWidth, mVpHeight);
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}
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} else {
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ProgramCache::getInstance().useProgram(mState);
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glDrawArrays(mesh.getPrimitive(), 0, mesh.getVertexCount());
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}
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#else
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ProgramCache::getInstance().useProgram(mState);
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glDrawArrays(mesh.getPrimitive(), 0, mesh.getVertexCount());
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#endif
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if (mesh.getTexCoordsSize()) {
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glDisableVertexAttribArray(Program::texCoords);
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}
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}
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void GLES20RenderEngine::dump(String8& result) {
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RenderEngine::dump(result);
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#ifdef USE_HWC2
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if (usesWideColor()) {
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result.append("Wide-color: On\n");
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} else {
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result.append("Wide-color: Off\n");
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}
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#endif
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}
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// ---------------------------------------------------------------------------
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}; // namespace android
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// ---------------------------------------------------------------------------
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#if defined(__gl_h_)
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#error "don't include gl/gl.h in this file"
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#endif
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