rsdGL.cpp revision 67605d7185c384469952b10d75c3d201b19cc07f 
1/*
2 * Copyright (C) 2011 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 <ui/FramebufferNativeWindow.h>
18#include <ui/PixelFormat.h>
19#include <ui/EGLUtils.h>
20#include <ui/egl/android_natives.h>
21
22#include <sys/types.h>
23#include <sys/resource.h>
24#include <sched.h>
25
26#include <cutils/properties.h>
27
28#include <GLES/gl.h>
29#include <GLES/glext.h>
30#include <GLES2/gl2.h>
31#include <GLES2/gl2ext.h>
32
33#include <string.h>
34
35#include "rsdCore.h"
36#include "rsdGL.h"
37
38#include <malloc.h>
39#include "rsContext.h"
40#include "rsdShaderCache.h"
41#include "rsdVertexArray.h"
42#include "rsdFrameBufferObj.h"
43
44using namespace android;
45using namespace android::renderscript;
46
47static int32_t gGLContextCount = 0;
48
49static 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
61static void printEGLConfiguration(EGLDisplay dpy, EGLConfig config) {
62
63#define X(VAL) {VAL, #VAL}
64    struct {EGLint attribute; const char* name;} names[] = {
65    X(EGL_BUFFER_SIZE),
66    X(EGL_ALPHA_SIZE),
67    X(EGL_BLUE_SIZE),
68    X(EGL_GREEN_SIZE),
69    X(EGL_RED_SIZE),
70    X(EGL_DEPTH_SIZE),
71    X(EGL_STENCIL_SIZE),
72    X(EGL_CONFIG_CAVEAT),
73    X(EGL_CONFIG_ID),
74    X(EGL_LEVEL),
75    X(EGL_MAX_PBUFFER_HEIGHT),
76    X(EGL_MAX_PBUFFER_PIXELS),
77    X(EGL_MAX_PBUFFER_WIDTH),
78    X(EGL_NATIVE_RENDERABLE),
79    X(EGL_NATIVE_VISUAL_ID),
80    X(EGL_NATIVE_VISUAL_TYPE),
81    X(EGL_SAMPLES),
82    X(EGL_SAMPLE_BUFFERS),
83    X(EGL_SURFACE_TYPE),
84    X(EGL_TRANSPARENT_TYPE),
85    X(EGL_TRANSPARENT_RED_VALUE),
86    X(EGL_TRANSPARENT_GREEN_VALUE),
87    X(EGL_TRANSPARENT_BLUE_VALUE),
88    X(EGL_BIND_TO_TEXTURE_RGB),
89    X(EGL_BIND_TO_TEXTURE_RGBA),
90    X(EGL_MIN_SWAP_INTERVAL),
91    X(EGL_MAX_SWAP_INTERVAL),
92    X(EGL_LUMINANCE_SIZE),
93    X(EGL_ALPHA_MASK_SIZE),
94    X(EGL_COLOR_BUFFER_TYPE),
95    X(EGL_RENDERABLE_TYPE),
96    X(EGL_CONFORMANT),
97   };
98#undef X
99
100    for (size_t j = 0; j < sizeof(names) / sizeof(names[0]); j++) {
101        EGLint value = -1;
102        EGLBoolean returnVal = eglGetConfigAttrib(dpy, config, names[j].attribute, &value);
103        if (returnVal) {
104            LOGV(" %s: %d (0x%x)", names[j].name, value, value);
105        }
106    }
107}
108
109static void DumpDebug(RsdHal *dc) {
110    LOGE(" EGL ver %i %i", dc->gl.egl.majorVersion, dc->gl.egl.minorVersion);
111    LOGE(" EGL context %p  surface %p,  Display=%p", dc->gl.egl.context, dc->gl.egl.surface,
112         dc->gl.egl.display);
113    LOGE(" GL vendor: %s", dc->gl.gl.vendor);
114    LOGE(" GL renderer: %s", dc->gl.gl.renderer);
115    LOGE(" GL Version: %s", dc->gl.gl.version);
116    LOGE(" GL Extensions: %s", dc->gl.gl.extensions);
117    LOGE(" GL int Versions %i %i", dc->gl.gl.majorVersion, dc->gl.gl.minorVersion);
118
119    LOGV("MAX Textures %i, %i  %i", dc->gl.gl.maxVertexTextureUnits,
120         dc->gl.gl.maxFragmentTextureImageUnits, dc->gl.gl.maxTextureImageUnits);
121    LOGV("MAX Attribs %i", dc->gl.gl.maxVertexAttribs);
122    LOGV("MAX Uniforms %i, %i", dc->gl.gl.maxVertexUniformVectors,
123         dc->gl.gl.maxFragmentUniformVectors);
124    LOGV("MAX Varyings %i", dc->gl.gl.maxVaryingVectors);
125}
126
127void rsdGLShutdown(const Context *rsc) {
128    RsdHal *dc = (RsdHal *)rsc->mHal.drv;
129
130    dc->gl.shaderCache->cleanupAll();
131    delete dc->gl.shaderCache;
132
133    delete dc->gl.vertexArrayState;
134
135    LOGV("%p, deinitEGL", rsc);
136
137    if (dc->gl.egl.context != EGL_NO_CONTEXT) {
138        eglMakeCurrent(dc->gl.egl.display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
139        eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surfaceDefault);
140        if (dc->gl.egl.surface != EGL_NO_SURFACE) {
141            eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surface);
142        }
143        eglDestroyContext(dc->gl.egl.display, dc->gl.egl.context);
144        checkEglError("eglDestroyContext");
145    }
146
147    gGLContextCount--;
148    if (!gGLContextCount) {
149        eglTerminate(dc->gl.egl.display);
150    }
151}
152
153bool rsdGLInit(const Context *rsc) {
154    RsdHal *dc = (RsdHal *)rsc->mHal.drv;
155
156    dc->gl.egl.numConfigs = -1;
157    EGLint configAttribs[128];
158    EGLint *configAttribsPtr = configAttribs;
159    EGLint context_attribs2[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
160
161    memset(configAttribs, 0, sizeof(configAttribs));
162
163    configAttribsPtr[0] = EGL_SURFACE_TYPE;
164    configAttribsPtr[1] = EGL_WINDOW_BIT;
165    configAttribsPtr += 2;
166
167    configAttribsPtr[0] = EGL_RENDERABLE_TYPE;
168    configAttribsPtr[1] = EGL_OPENGL_ES2_BIT;
169    configAttribsPtr += 2;
170
171    configAttribsPtr[0] = EGL_RED_SIZE;
172    configAttribsPtr[1] = 8;
173    configAttribsPtr += 2;
174
175    configAttribsPtr[0] = EGL_GREEN_SIZE;
176    configAttribsPtr[1] = 8;
177    configAttribsPtr += 2;
178
179    configAttribsPtr[0] = EGL_BLUE_SIZE;
180    configAttribsPtr[1] = 8;
181    configAttribsPtr += 2;
182
183    if (rsc->mUserSurfaceConfig.alphaMin > 0) {
184        configAttribsPtr[0] = EGL_ALPHA_SIZE;
185        configAttribsPtr[1] = rsc->mUserSurfaceConfig.alphaMin;
186        configAttribsPtr += 2;
187    }
188
189    if (rsc->mUserSurfaceConfig.depthMin > 0) {
190        configAttribsPtr[0] = EGL_DEPTH_SIZE;
191        configAttribsPtr[1] = rsc->mUserSurfaceConfig.depthMin;
192        configAttribsPtr += 2;
193    }
194
195    if (rsc->mDev->mForceSW) {
196        configAttribsPtr[0] = EGL_CONFIG_CAVEAT;
197        configAttribsPtr[1] = EGL_SLOW_CONFIG;
198        configAttribsPtr += 2;
199    }
200
201    configAttribsPtr[0] = EGL_NONE;
202    rsAssert(configAttribsPtr < (configAttribs + (sizeof(configAttribs) / sizeof(EGLint))));
203
204    LOGV("%p initEGL start", rsc);
205    dc->gl.egl.display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
206    checkEglError("eglGetDisplay");
207
208    eglInitialize(dc->gl.egl.display, &dc->gl.egl.majorVersion, &dc->gl.egl.minorVersion);
209    checkEglError("eglInitialize");
210
211    EGLBoolean ret;
212
213    EGLint numConfigs = -1, n = 0;
214    ret = eglChooseConfig(dc->gl.egl.display, configAttribs, 0, 0, &numConfigs);
215    checkEglError("eglGetConfigs", ret);
216
217    if (numConfigs) {
218        EGLConfig* const configs = new EGLConfig[numConfigs];
219
220        ret = eglChooseConfig(dc->gl.egl.display,
221                configAttribs, configs, numConfigs, &n);
222        if (!ret || !n) {
223            checkEglError("eglChooseConfig", ret);
224            LOGE("%p, couldn't find an EGLConfig matching the screen format\n", rsc);
225        }
226
227        // The first config is guaranteed to over-satisfy the constraints
228        dc->gl.egl.config = configs[0];
229
230        // go through the list and skip configs that over-satisfy our needs
231        for (int i=0 ; i<n ; i++) {
232            if (rsc->mUserSurfaceConfig.alphaMin <= 0) {
233                EGLint alphaSize;
234                eglGetConfigAttrib(dc->gl.egl.display,
235                        configs[i], EGL_ALPHA_SIZE, &alphaSize);
236                if (alphaSize > 0) {
237                    continue;
238                }
239            }
240
241            if (rsc->mUserSurfaceConfig.depthMin <= 0) {
242                EGLint depthSize;
243                eglGetConfigAttrib(dc->gl.egl.display,
244                        configs[i], EGL_DEPTH_SIZE, &depthSize);
245                if (depthSize > 0) {
246                    continue;
247                }
248            }
249
250            // Found one!
251            dc->gl.egl.config = configs[i];
252            break;
253        }
254
255        delete [] configs;
256    }
257
258    //if (props.mLogVisual) {
259    if (0) {
260        printEGLConfiguration(dc->gl.egl.display, dc->gl.egl.config);
261    }
262    //}
263
264    dc->gl.egl.context = eglCreateContext(dc->gl.egl.display, dc->gl.egl.config,
265                                          EGL_NO_CONTEXT, context_attribs2);
266    checkEglError("eglCreateContext");
267    if (dc->gl.egl.context == EGL_NO_CONTEXT) {
268        LOGE("%p, eglCreateContext returned EGL_NO_CONTEXT", rsc);
269        return false;
270    }
271    gGLContextCount++;
272
273
274    EGLint pbuffer_attribs[] = { EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE };
275    dc->gl.egl.surfaceDefault = eglCreatePbufferSurface(dc->gl.egl.display, dc->gl.egl.config,
276                                                        pbuffer_attribs);
277    checkEglError("eglCreatePbufferSurface");
278    if (dc->gl.egl.surfaceDefault == EGL_NO_SURFACE) {
279        LOGE("eglCreatePbufferSurface returned EGL_NO_SURFACE");
280        rsdGLShutdown(rsc);
281        return false;
282    }
283
284    ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surfaceDefault,
285                         dc->gl.egl.surfaceDefault, dc->gl.egl.context);
286    if (ret == EGL_FALSE) {
287        LOGE("eglMakeCurrent returned EGL_FALSE");
288        checkEglError("eglMakeCurrent", ret);
289        rsdGLShutdown(rsc);
290        return false;
291    }
292
293    dc->gl.gl.version = glGetString(GL_VERSION);
294    dc->gl.gl.vendor = glGetString(GL_VENDOR);
295    dc->gl.gl.renderer = glGetString(GL_RENDERER);
296    dc->gl.gl.extensions = glGetString(GL_EXTENSIONS);
297
298    //LOGV("EGL Version %i %i", mEGL.mMajorVersion, mEGL.mMinorVersion);
299    //LOGV("GL Version %s", mGL.mVersion);
300    //LOGV("GL Vendor %s", mGL.mVendor);
301    //LOGV("GL Renderer %s", mGL.mRenderer);
302    //LOGV("GL Extensions %s", mGL.mExtensions);
303
304    const char *verptr = NULL;
305    if (strlen((const char *)dc->gl.gl.version) > 9) {
306        if (!memcmp(dc->gl.gl.version, "OpenGL ES-CM", 12)) {
307            verptr = (const char *)dc->gl.gl.version + 12;
308        }
309        if (!memcmp(dc->gl.gl.version, "OpenGL ES ", 10)) {
310            verptr = (const char *)dc->gl.gl.version + 9;
311        }
312    }
313
314    if (!verptr) {
315        LOGE("Error, OpenGL ES Lite not supported");
316        rsdGLShutdown(rsc);
317        return false;
318    } else {
319        sscanf(verptr, " %i.%i", &dc->gl.gl.majorVersion, &dc->gl.gl.minorVersion);
320    }
321
322    glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &dc->gl.gl.maxVertexAttribs);
323    glGetIntegerv(GL_MAX_VERTEX_UNIFORM_VECTORS, &dc->gl.gl.maxVertexUniformVectors);
324    glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxVertexTextureUnits);
325
326    glGetIntegerv(GL_MAX_VARYING_VECTORS, &dc->gl.gl.maxVaryingVectors);
327    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxTextureImageUnits);
328
329    glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxFragmentTextureImageUnits);
330    glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_VECTORS, &dc->gl.gl.maxFragmentUniformVectors);
331
332    dc->gl.gl.OES_texture_npot = NULL != strstr((const char *)dc->gl.gl.extensions,
333                                                "GL_OES_texture_npot");
334    dc->gl.gl.GL_IMG_texture_npot = NULL != strstr((const char *)dc->gl.gl.extensions,
335                                                   "GL_IMG_texture_npot");
336    dc->gl.gl.GL_NV_texture_npot_2D_mipmap = NULL != strstr((const char *)dc->gl.gl.extensions,
337                                                            "GL_NV_texture_npot_2D_mipmap");
338    dc->gl.gl.EXT_texture_max_aniso = 1.0f;
339    bool hasAniso = NULL != strstr((const char *)dc->gl.gl.extensions,
340                                   "GL_EXT_texture_filter_anisotropic");
341    if (hasAniso) {
342        glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &dc->gl.gl.EXT_texture_max_aniso);
343    }
344
345    if (0) {
346        DumpDebug(dc);
347    }
348
349    dc->gl.shaderCache = new RsdShaderCache();
350    dc->gl.vertexArrayState = new RsdVertexArrayState();
351    dc->gl.vertexArrayState->init(dc->gl.gl.maxVertexAttribs);
352    dc->gl.currentFrameBuffer = NULL;
353
354    LOGV("initGLThread end %p", rsc);
355    return true;
356}
357
358
359bool rsdGLSetSurface(const Context *rsc, uint32_t w, uint32_t h, RsNativeWindow sur) {
360    RsdHal *dc = (RsdHal *)rsc->mHal.drv;
361
362    EGLBoolean ret;
363    // WAR: Some drivers fail to handle 0 size surfaces correcntly.
364    // Use the pbuffer to avoid this pitfall.
365    if ((dc->gl.egl.surface != NULL) || (w == 0) || (h == 0)) {
366        ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surfaceDefault,
367                             dc->gl.egl.surfaceDefault, dc->gl.egl.context);
368        checkEglError("eglMakeCurrent", ret);
369
370        ret = eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surface);
371        checkEglError("eglDestroySurface", ret);
372
373        dc->gl.egl.surface = NULL;
374        dc->gl.width = 1;
375        dc->gl.height = 1;
376    }
377
378    if (dc->gl.wndSurface != NULL) {
379        dc->gl.wndSurface->decStrong(NULL);
380    }
381
382    dc->gl.wndSurface = (ANativeWindow *)sur;
383    if (dc->gl.wndSurface != NULL) {
384        dc->gl.wndSurface->incStrong(NULL);
385        dc->gl.width = w;
386        dc->gl.height = h;
387
388        dc->gl.egl.surface = eglCreateWindowSurface(dc->gl.egl.display, dc->gl.egl.config,
389                                                    dc->gl.wndSurface, NULL);
390        checkEglError("eglCreateWindowSurface");
391        if (dc->gl.egl.surface == EGL_NO_SURFACE) {
392            LOGE("eglCreateWindowSurface returned EGL_NO_SURFACE");
393        }
394
395        ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surface,
396                             dc->gl.egl.surface, dc->gl.egl.context);
397        checkEglError("eglMakeCurrent", ret);
398    }
399    return true;
400}
401
402void rsdGLSwap(const android::renderscript::Context *rsc) {
403    RsdHal *dc = (RsdHal *)rsc->mHal.drv;
404    eglSwapBuffers(dc->gl.egl.display, dc->gl.egl.surface);
405}
406
407void rsdGLCheckError(const android::renderscript::Context *rsc,
408                     const char *msg, bool isFatal) {
409    GLenum err = glGetError();
410    if (err != GL_NO_ERROR) {
411        char buf[1024];
412        snprintf(buf, sizeof(buf), "GL Error = 0x%08x, from: %s", err, msg);
413
414        if (isFatal) {
415            rsc->setError(RS_ERROR_FATAL_DRIVER, buf);
416        } else {
417            switch (err) {
418            case GL_OUT_OF_MEMORY:
419                rsc->setError(RS_ERROR_OUT_OF_MEMORY, buf);
420                break;
421            default:
422                rsc->setError(RS_ERROR_DRIVER, buf);
423                break;
424            }
425        }
426
427        LOGE("%p, %s", rsc, buf);
428    }
429
430}
431