textures.cpp revision 429c521b15112fdcc70dca602b432fae45ca3a22
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Copyright 2006, The Android Open Source Project 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Licensed under the Apache License, Version 2.0 (the "License"); 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** you may not use this file except in compliance with the License. 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** You may obtain a copy of the License at 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** http://www.apache.org/licenses/LICENSE-2.0 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Unless required by applicable law or agreed to in writing, software 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** distributed under the License is distributed on an "AS IS" BASIS, 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** See the License for the specific language governing permissions and 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** limitations under the License. 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project*/ 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <stdlib.h> 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <stdio.h> 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <EGL/egl.h> 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <GLES/gl.h> 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <GLES/glext.h> 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint main(int argc, char** argv) 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EGLint s_configAttribs[] = { 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EGL_RED_SIZE, 5, 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EGL_GREEN_SIZE, 6, 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EGL_BLUE_SIZE, 5, 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EGL_NONE 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian EGLint numConfigs = -1, n=0; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EGLint majorVersion; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EGLint minorVersion; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EGLConfig config; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EGLContext context; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EGLSurface surface; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EGLint w, h; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EGLDisplay dpy; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY); 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project eglInitialize(dpy, &majorVersion, &minorVersion); 46429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian 47429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian // Get all the "potential match" configs... 48429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian eglGetConfigs(dpy, NULL, 0, &numConfigs); 49429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian EGLConfig* const configs = malloc(sizeof(EGLConfig)*numConfigs); 50429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian eglChooseConfig(dpy, s_configAttribs, configs, numConfigs, &n); 51429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian config = configs[0]; 52429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian if (n > 1) { 53429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian // if there is more than one candidate, go through the list 54429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian // and pick one that matches our framebuffer format 55429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian int fbSzA = 0; // should not hardcode 56429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian int fbSzR = 5; // should not hardcode 57429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian int fbSzG = 6; // should not hardcode 58429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian int fbSzB = 5; // should not hardcode 59429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian int i; 60429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian for (i=0 ; i<n ; i++) { 61429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian EGLint r,g,b,a; 62429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian eglGetConfigAttrib(dpy, configs[i], EGL_RED_SIZE, &r); 63429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian eglGetConfigAttrib(dpy, configs[i], EGL_GREEN_SIZE, &g); 64429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian eglGetConfigAttrib(dpy, configs[i], EGL_BLUE_SIZE, &b); 65429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian eglGetConfigAttrib(dpy, configs[i], EGL_ALPHA_SIZE, &a); 66429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian if (fbSzA == a && fbSzR == r && fbSzG == g && fbSzB == b) { 67429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian config = configs[i]; 68429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian break; 69429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian } 70429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian } 71429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian } 72429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian free(configs); 73429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian 74429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian 75429c521b15112fdcc70dca602b432fae45ca3a22Mathias Agopian 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project surface = eglCreateWindowSurface(dpy, config, 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project android_createDisplaySurface(), NULL); 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project context = eglCreateContext(dpy, config, NULL, NULL); 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project eglMakeCurrent(dpy, surface, surface, context); 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project eglQuerySurface(dpy, surface, EGL_WIDTH, &w); 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project eglQuerySurface(dpy, surface, EGL_HEIGHT, &h); 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project GLint dim = w<h ? w : h; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project GLint crop[4] = { 0, 4, 4, -4 }; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glBindTexture(GL_TEXTURE_2D, 0); 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop); 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glEnable(GL_TEXTURE_2D); 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glColor4f(1,1,1,1); 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // packing is always 4 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint8_t t8[] = { 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0x00, 0x55, 0x00, 0x55, 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0xAA, 0xFF, 0xAA, 0xFF, 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0x00, 0x55, 0x00, 0x55, 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0xAA, 0xFF, 0xAA, 0xFF }; 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint16_t t16[] = { 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0x0000, 0x5555, 0x0000, 0x5555, 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0xAAAA, 0xFFFF, 0xAAAA, 0xFFFF, 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0x0000, 0x5555, 0x0000, 0x5555, 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0xAAAA, 0xFFFF, 0xAAAA, 0xFFFF }; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint16_t t5551[] = { 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0x0000, 0xFFFF, 0x0000, 0xFFFF, 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0xFFFF, 0x0000, 0xFFFF, 0x0000, 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0x0000, 0xFFFF, 0x0000, 0xFFFF, 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0xFFFF, 0x0000, 0xFFFF, 0x0000 }; 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t t32[] = { 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0xFF000000, 0xFF0000FF, 0xFF00FF00, 0xFFFF0000, 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0xFF00FF00, 0xFFFF0000, 0xFF000000, 0xFF0000FF, 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0xFF00FFFF, 0xFF00FF00, 0x00FF00FF, 0xFFFFFF00, 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0xFF000000, 0xFFFF00FF, 0xFF00FFFF, 0xFFFFFFFF 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glClear(GL_COLOR_BUFFER_BIT); 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, 4, 4, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, t8); 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glDrawTexiOES(0, 0, 0, dim/2, dim/2); 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 4, 4, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, t16); 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glDrawTexiOES(dim/2, 0, 0, dim/2, dim/2); 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, t16); 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glDrawTexiOES(0, dim/2, 0, dim/2, dim/2); 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, t32); 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glDrawTexiOES(dim/2, dim/2, 0, dim/2, dim/2); 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project eglSwapBuffers(dpy, surface); 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 139