diff options
Diffstat (limited to 'opengl/tests/gl2_basic/gl2_basic.cpp')
| -rw-r--r-- | opengl/tests/gl2_basic/gl2_basic.cpp | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/opengl/tests/gl2_basic/gl2_basic.cpp b/opengl/tests/gl2_basic/gl2_basic.cpp new file mode 100644 index 0000000000..ba9a717769 --- /dev/null +++ b/opengl/tests/gl2_basic/gl2_basic.cpp @@ -0,0 +1,298 @@ +/* + * Copyright (C) 2007 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdlib.h> +#include <stdio.h> +#include <time.h> +#include <sched.h> +#include <sys/resource.h> + +#include <EGL/egl.h> +#include <GLES2/gl2.h> +#include <GLES2/gl2ext.h> + +#include <utils/Timers.h> + +#include <ui/FramebufferNativeWindow.h> +#include <ui/EGLUtils.h> + +using namespace android; + +static void printGLString(const char *name, GLenum s) { + // fprintf(stderr, "printGLString %s, %d\n", name, s); + const char *v = (const char *) glGetString(s); + // int error = glGetError(); + // fprintf(stderr, "glGetError() = %d, result of glGetString = %x\n", error, + // (unsigned int) v); + // if ((v < (const char*) 0) || (v > (const char*) 0x10000)) + // fprintf(stderr, "GL %s = %s\n", name, v); + // else + // fprintf(stderr, "GL %s = (null) 0x%08x\n", name, (unsigned int) v); + fprintf(stderr, "GL %s = %s\n", name, v); +} + +static const char* eglErrorToString[] = { + "EGL_SUCCESS", // 0x3000 12288 + "EGL_NOT_INITIALIZED", + "EGL_BAD_ACCESS", // 0x3002 12290 + "EGL_BAD_ALLOC", "EGL_BAD_ATTRIBUTE", + "EGL_BAD_CONFIG", + "EGL_BAD_CONTEXT", // 0x3006 12294 + "EGL_BAD_CURRENT_SURFACE", "EGL_BAD_DISPLAY", "EGL_BAD_MATCH", + "EGL_BAD_NATIVE_PIXMAP", "EGL_BAD_NATIVE_WINDOW", "EGL_BAD_PARAMETER", // 0x300c 12300 + "EGL_BAD_SURFACE" }; + +static void checkEglError(const char* op, EGLBoolean returnVal = EGL_TRUE) { + if (returnVal != EGL_TRUE) { + fprintf(stderr, "%s() returned %d\n", op, returnVal); + } + + for (EGLint error = eglGetError(); error != EGL_SUCCESS; error + = eglGetError()) { + const char* errorString = "unknown"; + if (error >= EGL_SUCCESS && error <= EGL_BAD_SURFACE) { + errorString = eglErrorToString[error - EGL_SUCCESS]; + } + fprintf(stderr, "after %s() eglError %s (0x%x)\n", op, errorString, + error); + } +} + +static void checkGlError(const char* op) { + for (GLint error = glGetError(); error; error + = glGetError()) { + fprintf(stderr, "after %s() glError (0x%x)\n", op, error); + } +} + +static const char gVertexShader[] = "attribute vec4 vPosition;\n" + "void main() {\n" + " gl_Position = vPosition;\n" + "}\n"; + +static const char gFragmentShader[] = "precision mediump float;\n" + "void main() {\n" + " gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);\n" + "}\n"; + +GLuint loadShader(GLenum shaderType, const char* pSource) { + GLuint shader = glCreateShader(shaderType); + if (shader) { + glShaderSource(shader, 1, &pSource, NULL); + glCompileShader(shader); + GLint compiled = 0; + glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled); + if (!compiled) { + GLint infoLen = 0; + glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &infoLen); + if (infoLen) { + char* buf = (char*) malloc(infoLen); + if (buf) { + glGetShaderInfoLog(shader, infoLen, NULL, buf); + fprintf(stderr, "Could not compile shader %d:\n%s\n", + shaderType, buf); + free(buf); + } + glDeleteShader(shader); + shader = 0; + } + } + } + return shader; +} + +GLuint createProgram(const char* pVertexSource, const char* pFragmentSource) { + GLuint vertexShader = loadShader(GL_VERTEX_SHADER, pVertexSource); + if (!vertexShader) { + return 0; + } + + GLuint pixelShader = loadShader(GL_FRAGMENT_SHADER, pFragmentSource); + if (!pixelShader) { + return 0; + } + + GLuint program = glCreateProgram(); + if (program) { + glAttachShader(program, vertexShader); + checkGlError("glAttachShader"); + glAttachShader(program, pixelShader); + checkGlError("glAttachShader"); + glLinkProgram(program); + GLint linkStatus = GL_FALSE; + glGetProgramiv(program, GL_LINK_STATUS, &linkStatus); + if (linkStatus != GL_TRUE) { + GLint bufLength = 0; + glGetProgramiv(program, GL_INFO_LOG_LENGTH, &bufLength); + if (bufLength) { + char* buf = (char*) malloc(bufLength); + if (buf) { + glGetProgramInfoLog(program, bufLength, NULL, buf); + fprintf(stderr, "Could not link program:\n%s\n", buf); + free(buf); + } + } + glDeleteProgram(program); + program = 0; + } + } + return program; +} + +GLuint gProgram; +GLuint gvPositionHandle; + +bool setupGraphics(int w, int h) { + gProgram = createProgram(gVertexShader, gFragmentShader); + if (!gProgram) { + return false; + } + gvPositionHandle = glGetAttribLocation(gProgram, "vPosition"); + checkGlError("glGetAttribLocation"); + fprintf(stderr, "glGetAttribLocation(\"vPosition\") = %d\n", + gvPositionHandle); + + glViewport(0, 0, w, h); + checkGlError("glViewport"); + return true; +} + +const GLfloat gTriangleVertices[] = { 0.0f, 0.5f, -0.5f, -0.5f, + 0.5f, -0.5f }; + +void renderFrame() { + glClearColor(0.0f, 0.0f, 1.0f, 1.0f); + checkGlError("glClearColor"); + glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT); + checkGlError("glClear"); + + glUseProgram(gProgram); + checkGlError("glUseProgram"); + + glVertexAttribPointer(gvPositionHandle, 2, GL_FLOAT, GL_FALSE, 0, gTriangleVertices); + checkGlError("glVertexAttribPointer"); + glEnableVertexAttribArray(gvPositionHandle); + checkGlError("glEnableVertexAttribArray"); + glDrawArrays(GL_TRIANGLES, 0, 3); + checkGlError("glDrawArrays"); +} + +int main(int argc, char** argv) { + EGLBoolean returnValue; + EGLConfig configs[2]; + EGLint config_count; + + EGLint context_attribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE }; + EGLint s_configAttribs[] = { EGL_BUFFER_SIZE, EGL_DONT_CARE, EGL_RED_SIZE, + 5, EGL_GREEN_SIZE, 6, EGL_BLUE_SIZE, 5, EGL_DEPTH_SIZE, 8, + EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, EGL_NONE }; + + EGLint s_configAttribs2[] = + { + EGL_DEPTH_SIZE, 16, + EGL_NONE + }; + + EGLint majorVersion; + EGLint minorVersion; + EGLContext context; + EGLSurface surface; + EGLint w, h; + + EGLDisplay dpy; + + EGLNativeWindowType window = 0; + window = android_createDisplaySurface(); + + checkEglError("<init>"); + dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY); + checkEglError("eglGetDisplay"); + if (dpy == EGL_NO_DISPLAY) { + printf("eglGetDisplay returned EGL_NO_DISPLAY.\n"); + return 0; + } + + returnValue = eglInitialize(dpy, &majorVersion, &minorVersion); + checkEglError("eglInitialize", returnValue); + fprintf(stderr, "EGL version %d.%d\n", majorVersion, minorVersion); + if (returnValue != EGL_TRUE) { + printf("eglInitialize failed\n"); + return 0; + } + + returnValue = eglGetConfigs(dpy, configs, 2, &config_count); + checkEglError("eglGetConfigs", returnValue); + fprintf(stderr, "Config count: %d\n", config_count); + for (int i = 0; i < config_count; i++) { + fprintf(stderr, "%d: 0x%08x\n", i, (unsigned int) configs[i]); + } + +#if 0 + EGLConfig config; + EGLUtils::selectConfigForNativeWindow(dpy, s_configAttribs, window, &config); + checkEglError("EGLUtils::selectConfigForNativeWindow"); +#else + int chooseConfigResult = eglChooseConfig(dpy, s_configAttribs2, configs, 2, + &config_count); + checkEglError("eglChooseConfig", chooseConfigResult); + if (chooseConfigResult != EGL_TRUE) { + printf("eglChooseConfig failed\n"); + return 0; + } +#endif + + surface = eglCreateWindowSurface(dpy, configs[0], window, NULL); + checkEglError("eglCreateWindowSurface"); + if (surface == EGL_NO_SURFACE) { + printf("gelCreateWindowSurface failed.\n"); + return 0; + } + EGLint gl2_0Attribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE }; + + context = eglCreateContext(dpy, configs[0], EGL_NO_CONTEXT, context_attribs); + checkEglError("eglCreateContext"); + if (context == EGL_NO_CONTEXT) { + printf("eglCreateContext failed\n"); + return 0; + } + eglMakeCurrent(dpy, surface, surface, context); + checkEglError("eglMakeCurrent"); + eglQuerySurface(dpy, surface, EGL_WIDTH, &w); + checkEglError("eglQuerySurface"); + eglQuerySurface(dpy, surface, EGL_HEIGHT, &h); + checkEglError("eglQuerySurface"); + GLint dim = w < h ? w : h; + + fprintf(stderr, "Window dimensions: %d x %d\n", w, h); + + printGLString("Version", GL_VERSION); + printGLString("Vendor", GL_VENDOR); + printGLString("Renderer", GL_RENDERER); + printGLString("Extensions", GL_EXTENSIONS); + + if(!setupGraphics(w, h)) { + fprintf(stderr, "Could not set up graphics.\n"); + return 0; + } + + for (;;) { + renderFrame(); + eglSwapBuffers(dpy, surface); + checkEglError("eglSwapBuffers"); + } + + return 0; +} |