1 /*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <stdlib.h>
18 #include <stdio.h>
19 #include <time.h>
20 #include <sched.h>
21 #include <sys/resource.h>
22
23 #include <EGL/egl.h>
24 #include <EGL/eglext.h>
25 #include <GLES/gl.h>
26 #include <GLES/glext.h>
27
28 #include <utils/Timers.h>
29
30 #include <WindowSurface.h>
31 #include <ui/GraphicBuffer.h>
32 #include <EGLUtils.h>
33
34 using namespace android;
35
printGLString(const char * name,GLenum s)36 static void printGLString(const char *name, GLenum s) {
37 // fprintf(stderr, "printGLString %s, %d\n", name, s);
38 const char *v = (const char *) glGetString(s);
39 // int error = glGetError();
40 // fprintf(stderr, "glGetError() = %d, result of glGetString = %x\n", error,
41 // (unsigned int) v);
42 // if ((v < (const char*) 0) || (v > (const char*) 0x10000))
43 // fprintf(stderr, "GL %s = %s\n", name, v);
44 // else
45 // fprintf(stderr, "GL %s = (null) 0x%08x\n", name, (unsigned int) v);
46 fprintf(stderr, "GL %s = %s\n", name, v);
47 }
48
checkEglError(const char * op,EGLBoolean returnVal=EGL_TRUE)49 static void checkEglError(const char* op, EGLBoolean returnVal = EGL_TRUE) {
50 if (returnVal != EGL_TRUE) {
51 fprintf(stderr, "%s() returned %d\n", op, returnVal);
52 }
53
54 for (EGLint error = eglGetError(); error != EGL_SUCCESS; error
55 = eglGetError()) {
56 fprintf(stderr, "after %s() eglError %s (0x%x)\n", op, EGLUtils::strerror(error),
57 error);
58 }
59 }
60
checkGlError(const char * op)61 static void checkGlError(const char* op) {
62 for (GLint error = glGetError(); error; error
63 = glGetError()) {
64 fprintf(stderr, "after %s() glError (0x%x)\n", op, error);
65 }
66 }
67
setupGraphics(int w,int h)68 bool setupGraphics(int w, int h) {
69 glViewport(0, 0, w, h);
70 checkGlError("glViewport");
71 return true;
72 }
73
align(int x,int a)74 int align(int x, int a) {
75 return (x + (a-1)) & (~(a-1));
76 }
77
78 const int yuvTexWidth = 600;
79 const int yuvTexHeight = 480;
80 const int yuvTexUsage = GraphicBuffer::USAGE_HW_TEXTURE |
81 GraphicBuffer::USAGE_SW_WRITE_RARELY;
82 const int yuvTexFormat = HAL_PIXEL_FORMAT_YV12;
83 const int yuvTexOffsetY = 0;
84 const int yuvTexStrideY = (yuvTexWidth + 0xf) & ~0xf;
85 const int yuvTexOffsetV = yuvTexStrideY * yuvTexHeight;
86 const int yuvTexStrideV = (yuvTexStrideY/2 + 0xf) & ~0xf;
87 const int yuvTexOffsetU = yuvTexOffsetV + yuvTexStrideV * yuvTexHeight/2;
88 const int yuvTexStrideU = yuvTexStrideV;
89 const bool yuvTexSameUV = false;
90 static sp<GraphicBuffer> yuvTexBuffer;
91 static GLuint yuvTex;
92
setupYuvTexSurface(EGLDisplay dpy,EGLContext context)93 bool setupYuvTexSurface(EGLDisplay dpy, EGLContext context) {
94 int blockWidth = yuvTexWidth > 16 ? yuvTexWidth / 16 : 1;
95 int blockHeight = yuvTexHeight > 16 ? yuvTexHeight / 16 : 1;
96 yuvTexBuffer = new GraphicBuffer(yuvTexWidth, yuvTexHeight, yuvTexFormat,
97 yuvTexUsage);
98 char* buf = NULL;
99 status_t err = yuvTexBuffer->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&buf));
100 if (err != 0) {
101 fprintf(stderr, "yuvTexBuffer->lock(...) failed: %d\n", err);
102 return false;
103 }
104 for (int x = 0; x < yuvTexWidth; x++) {
105 for (int y = 0; y < yuvTexHeight; y++) {
106 int parityX = (x / blockWidth) & 1;
107 int parityY = (y / blockHeight) & 1;
108 unsigned char intensity = (parityX ^ parityY) ? 63 : 191;
109 buf[yuvTexOffsetY + (y * yuvTexStrideY) + x] = intensity;
110 if (x < yuvTexWidth / 2 && y < yuvTexHeight / 2) {
111 buf[yuvTexOffsetU + (y * yuvTexStrideU) + x] = intensity;
112 if (yuvTexSameUV) {
113 buf[yuvTexOffsetV + (y * yuvTexStrideV) + x] = intensity;
114 } else if (x < yuvTexWidth / 4 && y < yuvTexHeight / 4) {
115 buf[yuvTexOffsetV + (y*2 * yuvTexStrideV) + x*2 + 0] =
116 buf[yuvTexOffsetV + (y*2 * yuvTexStrideV) + x*2 + 1] =
117 buf[yuvTexOffsetV + ((y*2+1) * yuvTexStrideV) + x*2 + 0] =
118 buf[yuvTexOffsetV + ((y*2+1) * yuvTexStrideV) + x*2 + 1] = intensity;
119 }
120 }
121 }
122 }
123
124 err = yuvTexBuffer->unlock();
125 if (err != 0) {
126 fprintf(stderr, "yuvTexBuffer->unlock() failed: %d\n", err);
127 return false;
128 }
129
130 EGLClientBuffer clientBuffer = (EGLClientBuffer)yuvTexBuffer->getNativeBuffer();
131 EGLImageKHR img = eglCreateImageKHR(dpy, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID,
132 clientBuffer, 0);
133 checkEglError("eglCreateImageKHR");
134 if (img == EGL_NO_IMAGE_KHR) {
135 return false;
136 }
137
138 glGenTextures(1, &yuvTex);
139 checkGlError("glGenTextures");
140 glBindTexture(GL_TEXTURE_EXTERNAL_OES, yuvTex);
141 checkGlError("glBindTexture");
142 glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, (GLeglImageOES)img);
143 checkGlError("glEGLImageTargetTexture2DOES");
144 glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
145 checkGlError("glTexParameteri");
146 glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
147 checkGlError("glTexParameteri");
148 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
149 checkGlError("glTexEnvx");
150
151 GLint crop[4] = { 0, 0, yuvTexWidth, yuvTexHeight };
152 glTexParameteriv(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_CROP_RECT_OES, crop);
153 checkGlError("glTexParameteriv");
154
155 return true;
156 }
157
renderFrame(int w,int h)158 void renderFrame(int w, int h) {
159 glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
160 checkGlError("glClearColor");
161 glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
162 checkGlError("glClear");
163
164 glBindTexture(GL_TEXTURE_EXTERNAL_OES, yuvTex);
165 checkGlError("glBindTexture");
166 glEnable(GL_TEXTURE_EXTERNAL_OES);
167 checkGlError("glEnable");
168
169 glDrawTexiOES(0, 0, 0, w, h);
170 checkGlError("glDrawTexiOES");
171 }
172
printEGLConfiguration(EGLDisplay dpy,EGLConfig config)173 void printEGLConfiguration(EGLDisplay dpy, EGLConfig config) {
174
175 #define X(VAL) {VAL, #VAL}
176 struct {EGLint attribute; const char* name;} names[] = {
177 X(EGL_BUFFER_SIZE),
178 X(EGL_ALPHA_SIZE),
179 X(EGL_BLUE_SIZE),
180 X(EGL_GREEN_SIZE),
181 X(EGL_RED_SIZE),
182 X(EGL_DEPTH_SIZE),
183 X(EGL_STENCIL_SIZE),
184 X(EGL_CONFIG_CAVEAT),
185 X(EGL_CONFIG_ID),
186 X(EGL_LEVEL),
187 X(EGL_MAX_PBUFFER_HEIGHT),
188 X(EGL_MAX_PBUFFER_PIXELS),
189 X(EGL_MAX_PBUFFER_WIDTH),
190 X(EGL_NATIVE_RENDERABLE),
191 X(EGL_NATIVE_VISUAL_ID),
192 X(EGL_NATIVE_VISUAL_TYPE),
193 X(EGL_SAMPLES),
194 X(EGL_SAMPLE_BUFFERS),
195 X(EGL_SURFACE_TYPE),
196 X(EGL_TRANSPARENT_TYPE),
197 X(EGL_TRANSPARENT_RED_VALUE),
198 X(EGL_TRANSPARENT_GREEN_VALUE),
199 X(EGL_TRANSPARENT_BLUE_VALUE),
200 X(EGL_BIND_TO_TEXTURE_RGB),
201 X(EGL_BIND_TO_TEXTURE_RGBA),
202 X(EGL_MIN_SWAP_INTERVAL),
203 X(EGL_MAX_SWAP_INTERVAL),
204 X(EGL_LUMINANCE_SIZE),
205 X(EGL_ALPHA_MASK_SIZE),
206 X(EGL_COLOR_BUFFER_TYPE),
207 X(EGL_RENDERABLE_TYPE),
208 X(EGL_CONFORMANT),
209 };
210 #undef X
211
212 for (size_t j = 0; j < sizeof(names) / sizeof(names[0]); j++) {
213 EGLint value = -1;
214 EGLint returnVal = eglGetConfigAttrib(dpy, config, names[j].attribute, &value);
215 EGLint error = eglGetError();
216 if (returnVal && error == EGL_SUCCESS) {
217 printf(" %s: ", names[j].name);
218 printf("%d (0x%x)", value, value);
219 }
220 }
221 printf("\n");
222 }
223
main(int argc,char ** argv)224 int main(int argc, char** argv) {
225 EGLBoolean returnValue;
226 EGLConfig myConfig = {0};
227
228 EGLint context_attribs[] = { EGL_CONTEXT_CLIENT_VERSION, 1, EGL_NONE };
229 EGLint s_configAttribs[] = {
230 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
231 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT,
232 EGL_NONE };
233 EGLint majorVersion;
234 EGLint minorVersion;
235 EGLContext context;
236 EGLSurface surface;
237 EGLint w, h;
238
239 EGLDisplay dpy;
240
241 checkEglError("<init>");
242 dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
243 checkEglError("eglGetDisplay");
244 if (dpy == EGL_NO_DISPLAY) {
245 printf("eglGetDisplay returned EGL_NO_DISPLAY.\n");
246 return 0;
247 }
248
249 returnValue = eglInitialize(dpy, &majorVersion, &minorVersion);
250 checkEglError("eglInitialize", returnValue);
251 fprintf(stderr, "EGL version %d.%d\n", majorVersion, minorVersion);
252 if (returnValue != EGL_TRUE) {
253 printf("eglInitialize failed\n");
254 return 0;
255 }
256
257 WindowSurface windowSurface;
258 EGLNativeWindowType window = windowSurface.getSurface();
259 returnValue = EGLUtils::selectConfigForNativeWindow(dpy, s_configAttribs, window, &myConfig);
260 if (returnValue) {
261 printf("EGLUtils::selectConfigForNativeWindow() returned %d", returnValue);
262 return 1;
263 }
264
265 checkEglError("EGLUtils::selectConfigForNativeWindow");
266
267 printf("Chose this configuration:\n");
268 printEGLConfiguration(dpy, myConfig);
269
270 surface = eglCreateWindowSurface(dpy, myConfig, window, NULL);
271 checkEglError("eglCreateWindowSurface");
272 if (surface == EGL_NO_SURFACE) {
273 printf("gelCreateWindowSurface failed.\n");
274 return 1;
275 }
276
277 context = eglCreateContext(dpy, myConfig, EGL_NO_CONTEXT, context_attribs);
278 checkEglError("eglCreateContext");
279 if (context == EGL_NO_CONTEXT) {
280 printf("eglCreateContext failed\n");
281 return 1;
282 }
283 returnValue = eglMakeCurrent(dpy, surface, surface, context);
284 checkEglError("eglMakeCurrent", returnValue);
285 if (returnValue != EGL_TRUE) {
286 return 1;
287 }
288 eglQuerySurface(dpy, surface, EGL_WIDTH, &w);
289 checkEglError("eglQuerySurface");
290 eglQuerySurface(dpy, surface, EGL_HEIGHT, &h);
291 checkEglError("eglQuerySurface");
292 GLint dim = w < h ? w : h;
293
294 fprintf(stderr, "Window dimensions: %d x %d\n", w, h);
295
296 printGLString("Version", GL_VERSION);
297 printGLString("Vendor", GL_VENDOR);
298 printGLString("Renderer", GL_RENDERER);
299 printGLString("Extensions", GL_EXTENSIONS);
300
301 if(!setupYuvTexSurface(dpy, context)) {
302 fprintf(stderr, "Could not set up texture surface.\n");
303 return 1;
304 }
305
306 if(!setupGraphics(w, h)) {
307 fprintf(stderr, "Could not set up graphics.\n");
308 return 1;
309 }
310
311 for (;;) {
312 static int dir = -1;
313
314 renderFrame(w, h);
315 eglSwapBuffers(dpy, surface);
316 checkEglError("eglSwapBuffers");
317
318 if (w <= 10 || h <= 10)
319 {
320 dir = -dir;
321 }
322
323 if (w >= 1300 || h >= 900)
324 {
325 dir = -dir;
326 }
327
328
329 w += dir;
330 h += dir;
331 }
332
333 return 0;
334 }
335