1 /* 2 ** 3 ** Copyright 2006, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #include <stdlib.h> 19 #include <stdio.h> 20 21 #include <EGL/egl.h> 22 #include <GLES/gl.h> 23 #include <GLES/glext.h> 24 25 #include <WindowSurface.h> 26 #include <EGLUtils.h> 27 28 using namespace android; 29 30 int main(int argc, char** argv) 31 { 32 EGLint configAttribs[] = { 33 EGL_DEPTH_SIZE, 0, 34 EGL_NONE 35 }; 36 37 EGLint majorVersion; 38 EGLint minorVersion; 39 EGLContext context; 40 EGLConfig config; 41 EGLSurface surface; 42 EGLint w, h; 43 EGLDisplay dpy; 44 45 WindowSurface windowSurface; 46 EGLNativeWindowType window = windowSurface.getSurface(); 47 48 dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY); 49 eglInitialize(dpy, &majorVersion, &minorVersion); 50 51 status_t err = EGLUtils::selectConfigForNativeWindow( 52 dpy, configAttribs, window, &config); 53 if (err) { 54 fprintf(stderr, "couldn't find an EGLConfig matching the screen format\n"); 55 return 0; 56 } 57 58 surface = eglCreateWindowSurface(dpy, config, window, NULL); 59 context = eglCreateContext(dpy, config, NULL, NULL); 60 eglMakeCurrent(dpy, surface, surface, context); 61 eglQuerySurface(dpy, surface, EGL_WIDTH, &w); 62 eglQuerySurface(dpy, surface, EGL_HEIGHT, &h); 63 GLint dim = w<h ? w : h; 64 65 66 GLint crop[4] = { 0, 4, 4, -4 }; 67 glBindTexture(GL_TEXTURE_2D, 0); 68 glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop); 69 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 70 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 71 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 72 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 73 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 74 glEnable(GL_TEXTURE_2D); 75 glColor4f(1,1,1,1); 76 77 // packing is always 4 78 uint8_t t8[] = { 79 0x00, 0x55, 0x00, 0x55, 80 0xAA, 0xFF, 0xAA, 0xFF, 81 0x00, 0x55, 0x00, 0x55, 82 0xAA, 0xFF, 0xAA, 0xFF }; 83 84 uint16_t t16[] = { 85 0x0000, 0x5555, 0x0000, 0x5555, 86 0xAAAA, 0xFFFF, 0xAAAA, 0xFFFF, 87 0x0000, 0x5555, 0x0000, 0x5555, 88 0xAAAA, 0xFFFF, 0xAAAA, 0xFFFF }; 89 90 uint16_t t5551[] = { 91 0x0000, 0xFFFF, 0x0000, 0xFFFF, 92 0xFFFF, 0x0000, 0xFFFF, 0x0000, 93 0x0000, 0xFFFF, 0x0000, 0xFFFF, 94 0xFFFF, 0x0000, 0xFFFF, 0x0000 }; 95 96 uint32_t t32[] = { 97 0xFF000000, 0xFF0000FF, 0xFF00FF00, 0xFFFF0000, 98 0xFF00FF00, 0xFFFF0000, 0xFF000000, 0xFF0000FF, 99 0xFF00FFFF, 0xFF00FF00, 0x00FF00FF, 0xFFFFFF00, 100 0xFF000000, 0xFFFF00FF, 0xFF00FFFF, 0xFFFFFFFF 101 }; 102 103 104 glClear(GL_COLOR_BUFFER_BIT); 105 glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, 4, 4, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, t8); 106 glDrawTexiOES(0, 0, 0, dim/2, dim/2); 107 108 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 4, 4, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, t16); 109 glDrawTexiOES(dim/2, 0, 0, dim/2, dim/2); 110 111 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, t16); 112 glDrawTexiOES(0, dim/2, 0, dim/2, dim/2); 113 114 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, t32); 115 glDrawTexiOES(dim/2, dim/2, 0, dim/2, dim/2); 116 117 eglSwapBuffers(dpy, surface); 118 119 sleep(2); // so you have a chance to admire it 120 return 0; 121 } 122
