rsdGL.cpp revision c33e6903d25b9cd9d88f45c7320534a5a05c9064 
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        EGLint returnVal = eglGetConfigAttrib(dpy, config, names[j].attribute, &value);
103        EGLint error = eglGetError();
104        if (returnVal && error == EGL_SUCCESS) {
105            LOGV(" %s: %d (0x%x)", names[j].name, value, value);
106        }
107    }
108}
109
110static void DumpDebug(RsdHal *dc) {
111    LOGE(" EGL ver %i %i", dc->gl.egl.majorVersion, dc->gl.egl.minorVersion);
112    LOGE(" EGL context %p  surface %p,  Display=%p", dc->gl.egl.context, dc->gl.egl.surface,
113         dc->gl.egl.display);
114    LOGE(" GL vendor: %s", dc->gl.gl.vendor);
115    LOGE(" GL renderer: %s", dc->gl.gl.renderer);
116    LOGE(" GL Version: %s", dc->gl.gl.version);
117    LOGE(" GL Extensions: %s", dc->gl.gl.extensions);
118    LOGE(" GL int Versions %i %i", dc->gl.gl.majorVersion, dc->gl.gl.minorVersion);
119
120    LOGV("MAX Textures %i, %i  %i", dc->gl.gl.maxVertexTextureUnits,
121         dc->gl.gl.maxFragmentTextureImageUnits, dc->gl.gl.maxTextureImageUnits);
122    LOGV("MAX Attribs %i", dc->gl.gl.maxVertexAttribs);
123    LOGV("MAX Uniforms %i, %i", dc->gl.gl.maxVertexUniformVectors,
124         dc->gl.gl.maxFragmentUniformVectors);
125    LOGV("MAX Varyings %i", dc->gl.gl.maxVaryingVectors);
126}
127
128void rsdGLShutdown(const Context *rsc) {
129    RsdHal *dc = (RsdHal *)rsc->mHal.drv;
130
131    dc->gl.shaderCache->cleanupAll();
132    delete dc->gl.shaderCache;
133
134    delete dc->gl.vertexArrayState;
135
136    LOGV("%p, deinitEGL", rsc);
137
138    if (dc->gl.egl.context != EGL_NO_CONTEXT) {
139        eglMakeCurrent(dc->gl.egl.display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
140        eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surfaceDefault);
141        if (dc->gl.egl.surface != EGL_NO_SURFACE) {
142            eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surface);
143        }
144        eglDestroyContext(dc->gl.egl.display, dc->gl.egl.context);
145        checkEglError("eglDestroyContext");
146    }
147
148    gGLContextCount--;
149    if (!gGLContextCount) {
150        eglTerminate(dc->gl.egl.display);
151    }
152}
153
154bool rsdGLInit(const Context *rsc) {
155    RsdHal *dc = (RsdHal *)rsc->mHal.drv;
156
157    dc->gl.egl.numConfigs = -1;
158    EGLint configAttribs[128];
159    EGLint *configAttribsPtr = configAttribs;
160    EGLint context_attribs2[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
161
162    memset(configAttribs, 0, sizeof(configAttribs));
163
164    configAttribsPtr[0] = EGL_SURFACE_TYPE;
165    configAttribsPtr[1] = EGL_WINDOW_BIT;
166    configAttribsPtr += 2;
167
168    configAttribsPtr[0] = EGL_RENDERABLE_TYPE;
169    configAttribsPtr[1] = EGL_OPENGL_ES2_BIT;
170    configAttribsPtr += 2;
171
172    if (rsc->mUserSurfaceConfig.depthMin > 0) {
173        configAttribsPtr[0] = EGL_DEPTH_SIZE;
174        configAttribsPtr[1] = rsc->mUserSurfaceConfig.depthMin;
175        configAttribsPtr += 2;
176    }
177
178    if (rsc->mDev->mForceSW) {
179        configAttribsPtr[0] = EGL_CONFIG_CAVEAT;
180        configAttribsPtr[1] = EGL_SLOW_CONFIG;
181        configAttribsPtr += 2;
182    }
183
184    configAttribsPtr[0] = EGL_NONE;
185    rsAssert(configAttribsPtr < (configAttribs + (sizeof(configAttribs) / sizeof(EGLint))));
186
187    LOGV("%p initEGL start", rsc);
188    dc->gl.egl.display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
189    checkEglError("eglGetDisplay");
190
191    eglInitialize(dc->gl.egl.display, &dc->gl.egl.majorVersion, &dc->gl.egl.minorVersion);
192    checkEglError("eglInitialize");
193
194    PixelFormat pf = PIXEL_FORMAT_RGBA_8888;
195    if (rsc->mUserSurfaceConfig.alphaMin == 0) {
196        pf = PIXEL_FORMAT_RGBX_8888;
197    }
198
199    status_t err = EGLUtils::selectConfigForPixelFormat(dc->gl.egl.display, configAttribs,
200                                                        pf, &dc->gl.egl.config);
201    if (err) {
202       LOGE("%p, couldn't find an EGLConfig matching the screen format\n", rsc);
203    }
204    //if (props.mLogVisual) {
205    if (0) {
206        printEGLConfiguration(dc->gl.egl.display, dc->gl.egl.config);
207    }
208    //}
209
210    dc->gl.egl.context = eglCreateContext(dc->gl.egl.display, dc->gl.egl.config,
211                                          EGL_NO_CONTEXT, context_attribs2);
212    checkEglError("eglCreateContext");
213    if (dc->gl.egl.context == EGL_NO_CONTEXT) {
214        LOGE("%p, eglCreateContext returned EGL_NO_CONTEXT", rsc);
215        return false;
216    }
217    gGLContextCount++;
218
219
220    EGLint pbuffer_attribs[] = { EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE };
221    dc->gl.egl.surfaceDefault = eglCreatePbufferSurface(dc->gl.egl.display, dc->gl.egl.config,
222                                                        pbuffer_attribs);
223    checkEglError("eglCreatePbufferSurface");
224    if (dc->gl.egl.surfaceDefault == EGL_NO_SURFACE) {
225        LOGE("eglCreatePbufferSurface returned EGL_NO_SURFACE");
226        rsdGLShutdown(rsc);
227        return false;
228    }
229
230    EGLBoolean ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surfaceDefault,
231                                    dc->gl.egl.surfaceDefault, dc->gl.egl.context);
232    if (ret == EGL_FALSE) {
233        LOGE("eglMakeCurrent returned EGL_FALSE");
234        checkEglError("eglMakeCurrent", ret);
235        rsdGLShutdown(rsc);
236        return false;
237    }
238
239    dc->gl.gl.version = glGetString(GL_VERSION);
240    dc->gl.gl.vendor = glGetString(GL_VENDOR);
241    dc->gl.gl.renderer = glGetString(GL_RENDERER);
242    dc->gl.gl.extensions = glGetString(GL_EXTENSIONS);
243
244    //LOGV("EGL Version %i %i", mEGL.mMajorVersion, mEGL.mMinorVersion);
245    //LOGV("GL Version %s", mGL.mVersion);
246    //LOGV("GL Vendor %s", mGL.mVendor);
247    //LOGV("GL Renderer %s", mGL.mRenderer);
248    //LOGV("GL Extensions %s", mGL.mExtensions);
249
250    const char *verptr = NULL;
251    if (strlen((const char *)dc->gl.gl.version) > 9) {
252        if (!memcmp(dc->gl.gl.version, "OpenGL ES-CM", 12)) {
253            verptr = (const char *)dc->gl.gl.version + 12;
254        }
255        if (!memcmp(dc->gl.gl.version, "OpenGL ES ", 10)) {
256            verptr = (const char *)dc->gl.gl.version + 9;
257        }
258    }
259
260    if (!verptr) {
261        LOGE("Error, OpenGL ES Lite not supported");
262        rsdGLShutdown(rsc);
263        return false;
264    } else {
265        sscanf(verptr, " %i.%i", &dc->gl.gl.majorVersion, &dc->gl.gl.minorVersion);
266    }
267
268    glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &dc->gl.gl.maxVertexAttribs);
269    glGetIntegerv(GL_MAX_VERTEX_UNIFORM_VECTORS, &dc->gl.gl.maxVertexUniformVectors);
270    glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxVertexTextureUnits);
271
272    glGetIntegerv(GL_MAX_VARYING_VECTORS, &dc->gl.gl.maxVaryingVectors);
273    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxTextureImageUnits);
274
275    glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxFragmentTextureImageUnits);
276    glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_VECTORS, &dc->gl.gl.maxFragmentUniformVectors);
277
278    dc->gl.gl.OES_texture_npot = NULL != strstr((const char *)dc->gl.gl.extensions,
279                                                "GL_OES_texture_npot");
280    dc->gl.gl.GL_IMG_texture_npot = NULL != strstr((const char *)dc->gl.gl.extensions,
281                                                   "GL_IMG_texture_npot");
282    dc->gl.gl.GL_NV_texture_npot_2D_mipmap = NULL != strstr((const char *)dc->gl.gl.extensions,
283                                                            "GL_NV_texture_npot_2D_mipmap");
284    dc->gl.gl.EXT_texture_max_aniso = 1.0f;
285    bool hasAniso = NULL != strstr((const char *)dc->gl.gl.extensions,
286                                   "GL_EXT_texture_filter_anisotropic");
287    if (hasAniso) {
288        glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &dc->gl.gl.EXT_texture_max_aniso);
289    }
290
291    if (0) {
292        DumpDebug(dc);
293    }
294
295    dc->gl.shaderCache = new RsdShaderCache();
296    dc->gl.vertexArrayState = new RsdVertexArrayState();
297    dc->gl.vertexArrayState->init(dc->gl.gl.maxVertexAttribs);
298    dc->gl.currentFrameBuffer = NULL;
299
300    LOGV("initGLThread end %p", rsc);
301    return true;
302}
303
304
305bool rsdGLSetSurface(const Context *rsc, uint32_t w, uint32_t h, RsNativeWindow sur) {
306    RsdHal *dc = (RsdHal *)rsc->mHal.drv;
307
308    EGLBoolean ret;
309    // WAR: Some drivers fail to handle 0 size surfaces correcntly.
310    // Use the pbuffer to avoid this pitfall.
311    if ((dc->gl.egl.surface != NULL) || (w == 0) || (h == 0)) {
312        ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surfaceDefault,
313                             dc->gl.egl.surfaceDefault, dc->gl.egl.context);
314        checkEglError("eglMakeCurrent", ret);
315
316        ret = eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surface);
317        checkEglError("eglDestroySurface", ret);
318
319        dc->gl.egl.surface = NULL;
320        dc->gl.width = 1;
321        dc->gl.height = 1;
322    }
323
324    if (dc->gl.wndSurface != NULL) {
325        dc->gl.wndSurface->decStrong(NULL);
326    }
327
328    dc->gl.wndSurface = (ANativeWindow *)sur;
329    if (dc->gl.wndSurface != NULL) {
330        dc->gl.wndSurface->incStrong(NULL);
331        dc->gl.width = w;
332        dc->gl.height = h;
333
334        dc->gl.egl.surface = eglCreateWindowSurface(dc->gl.egl.display, dc->gl.egl.config,
335                                                    dc->gl.wndSurface, NULL);
336        checkEglError("eglCreateWindowSurface");
337        if (dc->gl.egl.surface == EGL_NO_SURFACE) {
338            LOGE("eglCreateWindowSurface returned EGL_NO_SURFACE");
339        }
340
341        ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surface,
342                             dc->gl.egl.surface, dc->gl.egl.context);
343        checkEglError("eglMakeCurrent", ret);
344    }
345    return true;
346}
347
348void rsdGLSwap(const android::renderscript::Context *rsc) {
349    RsdHal *dc = (RsdHal *)rsc->mHal.drv;
350    eglSwapBuffers(dc->gl.egl.display, dc->gl.egl.surface);
351}
352
353void rsdGLCheckError(const android::renderscript::Context *rsc,
354                     const char *msg, bool isFatal) {
355    GLenum err = glGetError();
356    if (err != GL_NO_ERROR) {
357        char buf[1024];
358        snprintf(buf, sizeof(buf), "GL Error = 0x%08x, from: %s", err, msg);
359
360        if (isFatal) {
361            rsc->setError(RS_ERROR_FATAL_DRIVER, buf);
362        } else {
363            switch (err) {
364            case GL_OUT_OF_MEMORY:
365                rsc->setError(RS_ERROR_OUT_OF_MEMORY, buf);
366                break;
367            default:
368                rsc->setError(RS_ERROR_DRIVER, buf);
369                break;
370            }
371        }
372
373        LOGE("%p, %s", rsc, buf);
374    }
375
376}
377