rsdGL.cpp revision 4b3de47071d875faaa7d419d050a464b09538797 
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 <cutils/sched_policy.h>
34//#include <sys/syscall.h>
35#include <string.h>
36
37
38#include "rsdCore.h"
39#include "rsdGL.h"
40
41#include <malloc.h>
42#include "rsContext.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(RsHal *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    RsHal *dc = (RsHal *)rsc->mHal.drv;
130
131    LOGV("%p, deinitEGL", rsc);
132
133    if (dc->gl.egl.context != EGL_NO_CONTEXT) {
134        eglMakeCurrent(dc->gl.egl.display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
135        eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surfaceDefault);
136        if (dc->gl.egl.surface != EGL_NO_SURFACE) {
137            eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surface);
138        }
139        eglDestroyContext(dc->gl.egl.display, dc->gl.egl.context);
140        checkEglError("eglDestroyContext");
141    }
142
143    gGLContextCount--;
144    if (!gGLContextCount) {
145        eglTerminate(dc->gl.egl.display);
146    }
147}
148
149bool rsdGLInit(const Context *rsc) {
150    RsHal *dc = (RsHal *)rsc->mHal.drv;
151
152    dc->gl.egl.numConfigs = -1;
153    EGLint configAttribs[128];
154    EGLint *configAttribsPtr = configAttribs;
155    EGLint context_attribs2[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
156
157    memset(configAttribs, 0, sizeof(configAttribs));
158
159    configAttribsPtr[0] = EGL_SURFACE_TYPE;
160    configAttribsPtr[1] = EGL_WINDOW_BIT;
161    configAttribsPtr += 2;
162
163    configAttribsPtr[0] = EGL_RENDERABLE_TYPE;
164    configAttribsPtr[1] = EGL_OPENGL_ES2_BIT;
165    configAttribsPtr += 2;
166
167    if (rsc->mUserSurfaceConfig.depthMin > 0) {
168        configAttribsPtr[0] = EGL_DEPTH_SIZE;
169        configAttribsPtr[1] = rsc->mUserSurfaceConfig.depthMin;
170        configAttribsPtr += 2;
171    }
172
173    if (rsc->mDev->mForceSW) {
174        configAttribsPtr[0] = EGL_CONFIG_CAVEAT;
175        configAttribsPtr[1] = EGL_SLOW_CONFIG;
176        configAttribsPtr += 2;
177    }
178
179    configAttribsPtr[0] = EGL_NONE;
180    rsAssert(configAttribsPtr < (configAttribs + (sizeof(configAttribs) / sizeof(EGLint))));
181
182    LOGV("%p initEGL start", rsc);
183    dc->gl.egl.display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
184    checkEglError("eglGetDisplay");
185
186    eglInitialize(dc->gl.egl.display, &dc->gl.egl.majorVersion, &dc->gl.egl.minorVersion);
187    checkEglError("eglInitialize");
188
189    PixelFormat pf = PIXEL_FORMAT_RGBA_8888;
190    if (rsc->mUserSurfaceConfig.alphaMin == 0) {
191        pf = PIXEL_FORMAT_RGBX_8888;
192    }
193
194    status_t err = EGLUtils::selectConfigForPixelFormat(dc->gl.egl.display, configAttribs,
195                                                        pf, &dc->gl.egl.config);
196    if (err) {
197       LOGE("%p, couldn't find an EGLConfig matching the screen format\n", rsc);
198    }
199    //if (props.mLogVisual) {
200        printEGLConfiguration(dc->gl.egl.display, dc->gl.egl.config);
201    //}
202
203    dc->gl.egl.context = eglCreateContext(dc->gl.egl.display, dc->gl.egl.config,
204                                          EGL_NO_CONTEXT, context_attribs2);
205    checkEglError("eglCreateContext");
206    if (dc->gl.egl.context == EGL_NO_CONTEXT) {
207        LOGE("%p, eglCreateContext returned EGL_NO_CONTEXT", rsc);
208        return false;
209    }
210    gGLContextCount++;
211
212
213    EGLint pbuffer_attribs[] = { EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE };
214    dc->gl.egl.surfaceDefault = eglCreatePbufferSurface(dc->gl.egl.display, dc->gl.egl.config,
215                                                        pbuffer_attribs);
216    checkEglError("eglCreatePbufferSurface");
217    if (dc->gl.egl.surfaceDefault == EGL_NO_SURFACE) {
218        LOGE("eglCreatePbufferSurface returned EGL_NO_SURFACE");
219        rsdGLShutdown(rsc);
220        return false;
221    }
222
223    EGLBoolean ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surfaceDefault,
224                                    dc->gl.egl.surfaceDefault, dc->gl.egl.context);
225    if (ret == EGL_FALSE) {
226        LOGE("eglMakeCurrent returned EGL_FALSE");
227        checkEglError("eglMakeCurrent", ret);
228        rsdGLShutdown(rsc);
229        return false;
230    }
231
232    dc->gl.gl.version = glGetString(GL_VERSION);
233    dc->gl.gl.vendor = glGetString(GL_VENDOR);
234    dc->gl.gl.renderer = glGetString(GL_RENDERER);
235    dc->gl.gl.extensions = glGetString(GL_EXTENSIONS);
236
237    //LOGV("EGL Version %i %i", mEGL.mMajorVersion, mEGL.mMinorVersion);
238    //LOGV("GL Version %s", mGL.mVersion);
239    //LOGV("GL Vendor %s", mGL.mVendor);
240    //LOGV("GL Renderer %s", mGL.mRenderer);
241    //LOGV("GL Extensions %s", mGL.mExtensions);
242
243    const char *verptr = NULL;
244    if (strlen((const char *)dc->gl.gl.version) > 9) {
245        if (!memcmp(dc->gl.gl.version, "OpenGL ES-CM", 12)) {
246            verptr = (const char *)dc->gl.gl.version + 12;
247        }
248        if (!memcmp(dc->gl.gl.version, "OpenGL ES ", 10)) {
249            verptr = (const char *)dc->gl.gl.version + 9;
250        }
251    }
252
253    if (!verptr) {
254        LOGE("Error, OpenGL ES Lite not supported");
255        rsdGLShutdown(rsc);
256        return false;
257    } else {
258        sscanf(verptr, " %i.%i", &dc->gl.gl.majorVersion, &dc->gl.gl.minorVersion);
259    }
260
261    glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &dc->gl.gl.maxVertexAttribs);
262    glGetIntegerv(GL_MAX_VERTEX_UNIFORM_VECTORS, &dc->gl.gl.maxVertexUniformVectors);
263    glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxVertexTextureUnits);
264
265    glGetIntegerv(GL_MAX_VARYING_VECTORS, &dc->gl.gl.maxVaryingVectors);
266    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxTextureImageUnits);
267
268    glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxFragmentTextureImageUnits);
269    glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_VECTORS, &dc->gl.gl.maxFragmentUniformVectors);
270
271    dc->gl.gl.OES_texture_npot = NULL != strstr((const char *)dc->gl.gl.extensions,
272                                                "GL_OES_texture_npot");
273    dc->gl.gl.GL_IMG_texture_npot = NULL != strstr((const char *)dc->gl.gl.extensions,
274                                                   "GL_IMG_texture_npot");
275    dc->gl.gl.GL_NV_texture_npot_2D_mipmap = NULL != strstr((const char *)dc->gl.gl.extensions,
276                                                            "GL_NV_texture_npot_2D_mipmap");
277    dc->gl.gl.EXT_texture_max_aniso = 1.0f;
278    bool hasAniso = NULL != strstr((const char *)dc->gl.gl.extensions,
279                                   "GL_EXT_texture_filter_anisotropic");
280    if (hasAniso) {
281        glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &dc->gl.gl.EXT_texture_max_aniso);
282    }
283
284    DumpDebug(dc);
285
286    LOGV("initGLThread end %p", rsc);
287    return true;
288}
289
290
291bool rsdGLSetSurface(const Context *rsc, uint32_t w, uint32_t h, ANativeWindow *sur) {
292    RsHal *dc = (RsHal *)rsc->mHal.drv;
293
294    EGLBoolean ret;
295    // WAR: Some drivers fail to handle 0 size surfaces correcntly.
296    // Use the pbuffer to avoid this pitfall.
297    if ((dc->gl.egl.surface != NULL) || (w == 0) || (h == 0)) {
298        ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surfaceDefault,
299                             dc->gl.egl.surfaceDefault, dc->gl.egl.context);
300        checkEglError("eglMakeCurrent", ret);
301
302        ret = eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surface);
303        checkEglError("eglDestroySurface", ret);
304
305        dc->gl.egl.surface = NULL;
306        dc->gl.width = 1;
307        dc->gl.height = 1;
308    }
309
310    dc->gl.wndSurface = sur;
311    if (dc->gl.wndSurface != NULL) {
312        dc->gl.width = w;
313        dc->gl.height = h;
314
315        dc->gl.egl.surface = eglCreateWindowSurface(dc->gl.egl.display, dc->gl.egl.config,
316                                                    dc->gl.wndSurface, NULL);
317        checkEglError("eglCreateWindowSurface");
318        if (dc->gl.egl.surface == EGL_NO_SURFACE) {
319            LOGE("eglCreateWindowSurface returned EGL_NO_SURFACE");
320        }
321
322        ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surface,
323                             dc->gl.egl.surface, dc->gl.egl.context);
324        checkEglError("eglMakeCurrent", ret);
325    }
326    return true;
327}
328
329void rsdGLSwap(const android::renderscript::Context *rsc) {
330    RsHal *dc = (RsHal *)rsc->mHal.drv;
331    eglSwapBuffers(dc->gl.egl.display, dc->gl.egl.surface);
332}
333
334