334 lines
10 KiB
C++
334 lines
10 KiB
C++
/*
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* Copyright (C) 2010 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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#include <stdlib.h>
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#include <stdio.h>
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#include <time.h>
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#include <sched.h>
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#include <sys/resource.h>
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <GLES/gl.h>
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#include <GLES/glext.h>
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#include <utils/Timers.h>
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#include <ui/FramebufferNativeWindow.h>
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#include <ui/GraphicBuffer.h>
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#include "EGLUtils.h"
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using namespace android;
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static void printGLString(const char *name, GLenum s) {
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// fprintf(stderr, "printGLString %s, %d\n", name, s);
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const char *v = (const char *) glGetString(s);
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// int error = glGetError();
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// fprintf(stderr, "glGetError() = %d, result of glGetString = %x\n", error,
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// (unsigned int) v);
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// if ((v < (const char*) 0) || (v > (const char*) 0x10000))
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// fprintf(stderr, "GL %s = %s\n", name, v);
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// else
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// fprintf(stderr, "GL %s = (null) 0x%08x\n", name, (unsigned int) v);
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fprintf(stderr, "GL %s = %s\n", name, v);
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}
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static void checkEglError(const char* op, EGLBoolean returnVal = EGL_TRUE) {
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if (returnVal != EGL_TRUE) {
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fprintf(stderr, "%s() returned %d\n", op, returnVal);
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}
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for (EGLint error = eglGetError(); error != EGL_SUCCESS; error
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= eglGetError()) {
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fprintf(stderr, "after %s() eglError %s (0x%x)\n", op, EGLUtils::strerror(error),
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error);
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}
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}
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static void checkGlError(const char* op) {
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for (GLint error = glGetError(); error; error
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= glGetError()) {
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fprintf(stderr, "after %s() glError (0x%x)\n", op, error);
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}
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}
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bool setupGraphics(int w, int h) {
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glViewport(0, 0, w, h);
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checkGlError("glViewport");
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return true;
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}
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int align(int x, int a) {
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return (x + (a-1)) & (~(a-1));
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}
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const int yuvTexWidth = 600;
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const int yuvTexHeight = 480;
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const int yuvTexUsage = GraphicBuffer::USAGE_HW_TEXTURE |
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GraphicBuffer::USAGE_SW_WRITE_RARELY;
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const int yuvTexFormat = HAL_PIXEL_FORMAT_YV12;
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const int yuvTexOffsetY = 0;
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const int yuvTexStrideY = (yuvTexWidth + 0xf) & ~0xf;
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const int yuvTexOffsetV = yuvTexStrideY * yuvTexHeight;
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const int yuvTexStrideV = (yuvTexStrideY/2 + 0xf) & ~0xf;
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const int yuvTexOffsetU = yuvTexOffsetV + yuvTexStrideV * yuvTexHeight/2;
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const int yuvTexStrideU = yuvTexStrideV;
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const bool yuvTexSameUV = false;
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static sp<GraphicBuffer> yuvTexBuffer;
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static GLuint yuvTex;
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bool setupYuvTexSurface(EGLDisplay dpy, EGLContext context) {
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int blockWidth = yuvTexWidth > 16 ? yuvTexWidth / 16 : 1;
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int blockHeight = yuvTexHeight > 16 ? yuvTexHeight / 16 : 1;
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yuvTexBuffer = new GraphicBuffer(yuvTexWidth, yuvTexHeight, yuvTexFormat,
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yuvTexUsage);
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char* buf = NULL;
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status_t err = yuvTexBuffer->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&buf));
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if (err != 0) {
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fprintf(stderr, "yuvTexBuffer->lock(...) failed: %d\n", err);
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return false;
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}
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for (int x = 0; x < yuvTexWidth; x++) {
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for (int y = 0; y < yuvTexHeight; y++) {
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int parityX = (x / blockWidth) & 1;
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int parityY = (y / blockHeight) & 1;
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unsigned char intensity = (parityX ^ parityY) ? 63 : 191;
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buf[yuvTexOffsetY + (y * yuvTexStrideY) + x] = intensity;
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if (x < yuvTexWidth / 2 && y < yuvTexHeight / 2) {
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buf[yuvTexOffsetU + (y * yuvTexStrideU) + x] = intensity;
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if (yuvTexSameUV) {
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buf[yuvTexOffsetV + (y * yuvTexStrideV) + x] = intensity;
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} else if (x < yuvTexWidth / 4 && y < yuvTexHeight / 4) {
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buf[yuvTexOffsetV + (y*2 * yuvTexStrideV) + x*2 + 0] =
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buf[yuvTexOffsetV + (y*2 * yuvTexStrideV) + x*2 + 1] =
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buf[yuvTexOffsetV + ((y*2+1) * yuvTexStrideV) + x*2 + 0] =
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buf[yuvTexOffsetV + ((y*2+1) * yuvTexStrideV) + x*2 + 1] = intensity;
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}
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}
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}
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}
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err = yuvTexBuffer->unlock();
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if (err != 0) {
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fprintf(stderr, "yuvTexBuffer->unlock() failed: %d\n", err);
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return false;
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}
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EGLClientBuffer clientBuffer = (EGLClientBuffer)yuvTexBuffer->getNativeBuffer();
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EGLImageKHR img = eglCreateImageKHR(dpy, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID,
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clientBuffer, 0);
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checkEglError("eglCreateImageKHR");
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if (img == EGL_NO_IMAGE_KHR) {
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return false;
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}
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glGenTextures(1, &yuvTex);
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checkGlError("glGenTextures");
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glBindTexture(GL_TEXTURE_EXTERNAL_OES, yuvTex);
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checkGlError("glBindTexture");
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glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, (GLeglImageOES)img);
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checkGlError("glEGLImageTargetTexture2DOES");
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glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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checkGlError("glTexParameteri");
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glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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checkGlError("glTexParameteri");
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glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
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checkGlError("glTexEnvx");
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GLint crop[4] = { 0, 0, yuvTexWidth, yuvTexHeight };
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glTexParameteriv(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_CROP_RECT_OES, crop);
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checkGlError("glTexParameteriv");
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return true;
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}
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void renderFrame(int w, int h) {
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glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
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checkGlError("glClearColor");
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glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
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checkGlError("glClear");
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glBindTexture(GL_TEXTURE_EXTERNAL_OES, yuvTex);
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checkGlError("glBindTexture");
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glEnable(GL_TEXTURE_EXTERNAL_OES);
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checkGlError("glEnable");
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glDrawTexiOES(0, 0, 0, w, h);
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checkGlError("glDrawTexiOES");
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}
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void printEGLConfiguration(EGLDisplay dpy, EGLConfig config) {
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#define X(VAL) {VAL, #VAL}
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struct {EGLint attribute; const char* name;} names[] = {
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X(EGL_BUFFER_SIZE),
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X(EGL_ALPHA_SIZE),
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X(EGL_BLUE_SIZE),
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X(EGL_GREEN_SIZE),
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X(EGL_RED_SIZE),
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X(EGL_DEPTH_SIZE),
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X(EGL_STENCIL_SIZE),
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X(EGL_CONFIG_CAVEAT),
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X(EGL_CONFIG_ID),
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X(EGL_LEVEL),
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X(EGL_MAX_PBUFFER_HEIGHT),
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X(EGL_MAX_PBUFFER_PIXELS),
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X(EGL_MAX_PBUFFER_WIDTH),
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X(EGL_NATIVE_RENDERABLE),
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X(EGL_NATIVE_VISUAL_ID),
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X(EGL_NATIVE_VISUAL_TYPE),
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X(EGL_SAMPLES),
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X(EGL_SAMPLE_BUFFERS),
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X(EGL_SURFACE_TYPE),
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X(EGL_TRANSPARENT_TYPE),
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X(EGL_TRANSPARENT_RED_VALUE),
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X(EGL_TRANSPARENT_GREEN_VALUE),
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X(EGL_TRANSPARENT_BLUE_VALUE),
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X(EGL_BIND_TO_TEXTURE_RGB),
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X(EGL_BIND_TO_TEXTURE_RGBA),
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X(EGL_MIN_SWAP_INTERVAL),
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X(EGL_MAX_SWAP_INTERVAL),
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X(EGL_LUMINANCE_SIZE),
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X(EGL_ALPHA_MASK_SIZE),
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X(EGL_COLOR_BUFFER_TYPE),
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X(EGL_RENDERABLE_TYPE),
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X(EGL_CONFORMANT),
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};
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#undef X
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for (size_t j = 0; j < sizeof(names) / sizeof(names[0]); j++) {
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EGLint value = -1;
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EGLint returnVal = eglGetConfigAttrib(dpy, config, names[j].attribute, &value);
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EGLint error = eglGetError();
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if (returnVal && error == EGL_SUCCESS) {
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printf(" %s: ", names[j].name);
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printf("%d (0x%x)", value, value);
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}
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}
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printf("\n");
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}
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int main(int argc, char** argv) {
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EGLBoolean returnValue;
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EGLConfig myConfig = {0};
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EGLint context_attribs[] = { EGL_CONTEXT_CLIENT_VERSION, 1, EGL_NONE };
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EGLint s_configAttribs[] = {
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EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT,
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EGL_NONE };
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EGLint majorVersion;
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EGLint minorVersion;
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EGLContext context;
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EGLSurface surface;
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EGLint w, h;
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EGLDisplay dpy;
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checkEglError("<init>");
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dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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checkEglError("eglGetDisplay");
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if (dpy == EGL_NO_DISPLAY) {
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printf("eglGetDisplay returned EGL_NO_DISPLAY.\n");
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return 0;
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}
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returnValue = eglInitialize(dpy, &majorVersion, &minorVersion);
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checkEglError("eglInitialize", returnValue);
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fprintf(stderr, "EGL version %d.%d\n", majorVersion, minorVersion);
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if (returnValue != EGL_TRUE) {
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printf("eglInitialize failed\n");
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return 0;
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}
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EGLNativeWindowType window = android_createDisplaySurface();
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returnValue = EGLUtils::selectConfigForNativeWindow(dpy, s_configAttribs, window, &myConfig);
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if (returnValue) {
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printf("EGLUtils::selectConfigForNativeWindow() returned %d", returnValue);
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return 1;
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}
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checkEglError("EGLUtils::selectConfigForNativeWindow");
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printf("Chose this configuration:\n");
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printEGLConfiguration(dpy, myConfig);
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surface = eglCreateWindowSurface(dpy, myConfig, window, NULL);
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checkEglError("eglCreateWindowSurface");
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if (surface == EGL_NO_SURFACE) {
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printf("gelCreateWindowSurface failed.\n");
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return 1;
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}
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context = eglCreateContext(dpy, myConfig, EGL_NO_CONTEXT, context_attribs);
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checkEglError("eglCreateContext");
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if (context == EGL_NO_CONTEXT) {
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printf("eglCreateContext failed\n");
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return 1;
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}
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returnValue = eglMakeCurrent(dpy, surface, surface, context);
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checkEglError("eglMakeCurrent", returnValue);
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if (returnValue != EGL_TRUE) {
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return 1;
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}
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eglQuerySurface(dpy, surface, EGL_WIDTH, &w);
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checkEglError("eglQuerySurface");
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eglQuerySurface(dpy, surface, EGL_HEIGHT, &h);
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checkEglError("eglQuerySurface");
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GLint dim = w < h ? w : h;
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fprintf(stderr, "Window dimensions: %d x %d\n", w, h);
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printGLString("Version", GL_VERSION);
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printGLString("Vendor", GL_VENDOR);
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printGLString("Renderer", GL_RENDERER);
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printGLString("Extensions", GL_EXTENSIONS);
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if(!setupYuvTexSurface(dpy, context)) {
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fprintf(stderr, "Could not set up texture surface.\n");
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return 1;
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}
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if(!setupGraphics(w, h)) {
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fprintf(stderr, "Could not set up graphics.\n");
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return 1;
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}
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for (;;) {
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static int dir = -1;
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renderFrame(w, h);
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eglSwapBuffers(dpy, surface);
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checkEglError("eglSwapBuffers");
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if (w <= 10 || h <= 10)
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{
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dir = -dir;
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}
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if (w >= 1300 || h >= 900)
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{
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dir = -dir;
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}
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w += dir;
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h += dir;
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}
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return 0;
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}
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