| /* |
| ** |
| ** Copyright 2006, 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 <EGL/egl.h> |
| #include <GLES/gl.h> |
| #include <GLES/glext.h> |
| |
| #include <WindowSurface.h> |
| #include <EGLUtils.h> |
| |
| using namespace android; |
| |
| int main(int /*argc*/, char** /*argv*/) |
| { |
| EGLint configAttribs[] = { |
| EGL_DEPTH_SIZE, 0, |
| EGL_NONE |
| }; |
| |
| EGLint majorVersion; |
| EGLint minorVersion; |
| EGLContext context; |
| EGLConfig config; |
| EGLSurface surface; |
| EGLint w, h; |
| EGLDisplay dpy; |
| |
| WindowSurface windowSurface; |
| EGLNativeWindowType window = windowSurface.getSurface(); |
| |
| dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY); |
| eglInitialize(dpy, &majorVersion, &minorVersion); |
| |
| status_t err = EGLUtils::selectConfigForNativeWindow( |
| dpy, configAttribs, window, &config); |
| if (err) { |
| fprintf(stderr, "couldn't find an EGLConfig matching the screen format\n"); |
| return 0; |
| } |
| |
| surface = eglCreateWindowSurface(dpy, config, window, NULL); |
| context = eglCreateContext(dpy, config, NULL, NULL); |
| eglMakeCurrent(dpy, surface, surface, context); |
| eglQuerySurface(dpy, surface, EGL_WIDTH, &w); |
| eglQuerySurface(dpy, surface, EGL_HEIGHT, &h); |
| GLint dim = w<h ? w : h; |
| |
| |
| GLint crop[4] = { 0, 4, 4, -4 }; |
| glBindTexture(GL_TEXTURE_2D, 0); |
| glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop); |
| glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
| glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); |
| glEnable(GL_TEXTURE_2D); |
| glColor4f(1,1,1,1); |
| |
| // packing is always 4 |
| uint8_t t8[] = { |
| 0x00, 0x55, 0x00, 0x55, |
| 0xAA, 0xFF, 0xAA, 0xFF, |
| 0x00, 0x55, 0x00, 0x55, |
| 0xAA, 0xFF, 0xAA, 0xFF }; |
| |
| uint16_t t16[] = { |
| 0x0000, 0x5555, 0x0000, 0x5555, |
| 0xAAAA, 0xFFFF, 0xAAAA, 0xFFFF, |
| 0x0000, 0x5555, 0x0000, 0x5555, |
| 0xAAAA, 0xFFFF, 0xAAAA, 0xFFFF }; |
| |
| uint16_t t5551[] = { |
| 0x0000, 0xFFFF, 0x0000, 0xFFFF, |
| 0xFFFF, 0x0000, 0xFFFF, 0x0000, |
| 0x0000, 0xFFFF, 0x0000, 0xFFFF, |
| 0xFFFF, 0x0000, 0xFFFF, 0x0000 }; |
| |
| uint32_t t32[] = { |
| 0xFF000000, 0xFF0000FF, 0xFF00FF00, 0xFFFF0000, |
| 0xFF00FF00, 0xFFFF0000, 0xFF000000, 0xFF0000FF, |
| 0xFF00FFFF, 0xFF00FF00, 0x00FF00FF, 0xFFFFFF00, |
| 0xFF000000, 0xFFFF00FF, 0xFF00FFFF, 0xFFFFFFFF |
| }; |
| |
| |
| glClear(GL_COLOR_BUFFER_BIT); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, 4, 4, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, t8); |
| glDrawTexiOES(0, 0, 0, dim/2, dim/2); |
| |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 4, 4, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, t16); |
| glDrawTexiOES(dim/2, 0, 0, dim/2, dim/2); |
| |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, t16); |
| glDrawTexiOES(0, dim/2, 0, dim/2, dim/2); |
| |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, t32); |
| glDrawTexiOES(dim/2, dim/2, 0, dim/2, dim/2); |
| |
| eglSwapBuffers(dpy, surface); |
| |
| sleep(2); // so you have a chance to admire it |
| return 0; |
| } |