rsdGL.cpp revision c19ff0177a7a0dadfc01b1990f822354fdc95991 
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
43using namespace android;
44using namespace android::renderscript;
45
46static int32_t gGLContextCount = 0;
47
48static void checkEglError(const char* op, EGLBoolean returnVal = EGL_TRUE) {
49    if (returnVal != EGL_TRUE) {
50        fprintf(stderr, "%s() returned %d\n", op, returnVal);
51    }
52
53    for (EGLint error = eglGetError(); error != EGL_SUCCESS; error
54            = eglGetError()) {
55        fprintf(stderr, "after %s() eglError %s (0x%x)\n", op, EGLUtils::strerror(error),
56                error);
57    }
58}
59
60static void printEGLConfiguration(EGLDisplay dpy, EGLConfig config) {
61
62#define X(VAL) {VAL, #VAL}
63    struct {EGLint attribute; const char* name;} names[] = {
64    X(EGL_BUFFER_SIZE),
65    X(EGL_ALPHA_SIZE),
66    X(EGL_BLUE_SIZE),
67    X(EGL_GREEN_SIZE),
68    X(EGL_RED_SIZE),
69    X(EGL_DEPTH_SIZE),
70    X(EGL_STENCIL_SIZE),
71    X(EGL_CONFIG_CAVEAT),
72    X(EGL_CONFIG_ID),
73    X(EGL_LEVEL),
74    X(EGL_MAX_PBUFFER_HEIGHT),
75    X(EGL_MAX_PBUFFER_PIXELS),
76    X(EGL_MAX_PBUFFER_WIDTH),
77    X(EGL_NATIVE_RENDERABLE),
78    X(EGL_NATIVE_VISUAL_ID),
79    X(EGL_NATIVE_VISUAL_TYPE),
80    X(EGL_SAMPLES),
81    X(EGL_SAMPLE_BUFFERS),
82    X(EGL_SURFACE_TYPE),
83    X(EGL_TRANSPARENT_TYPE),
84    X(EGL_TRANSPARENT_RED_VALUE),
85    X(EGL_TRANSPARENT_GREEN_VALUE),
86    X(EGL_TRANSPARENT_BLUE_VALUE),
87    X(EGL_BIND_TO_TEXTURE_RGB),
88    X(EGL_BIND_TO_TEXTURE_RGBA),
89    X(EGL_MIN_SWAP_INTERVAL),
90    X(EGL_MAX_SWAP_INTERVAL),
91    X(EGL_LUMINANCE_SIZE),
92    X(EGL_ALPHA_MASK_SIZE),
93    X(EGL_COLOR_BUFFER_TYPE),
94    X(EGL_RENDERABLE_TYPE),
95    X(EGL_CONFORMANT),
96   };
97#undef X
98
99    for (size_t j = 0; j < sizeof(names) / sizeof(names[0]); j++) {
100        EGLint value = -1;
101        EGLint returnVal = eglGetConfigAttrib(dpy, config, names[j].attribute, &value);
102        EGLint error = eglGetError();
103        if (returnVal && error == EGL_SUCCESS) {
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    if (rsc->mUserSurfaceConfig.depthMin > 0) {
172        configAttribsPtr[0] = EGL_DEPTH_SIZE;
173        configAttribsPtr[1] = rsc->mUserSurfaceConfig.depthMin;
174        configAttribsPtr += 2;
175    }
176
177    if (rsc->mDev->mForceSW) {
178        configAttribsPtr[0] = EGL_CONFIG_CAVEAT;
179        configAttribsPtr[1] = EGL_SLOW_CONFIG;
180        configAttribsPtr += 2;
181    }
182
183    configAttribsPtr[0] = EGL_NONE;
184    rsAssert(configAttribsPtr < (configAttribs + (sizeof(configAttribs) / sizeof(EGLint))));
185
186    LOGV("%p initEGL start", rsc);
187    dc->gl.egl.display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
188    checkEglError("eglGetDisplay");
189
190    eglInitialize(dc->gl.egl.display, &dc->gl.egl.majorVersion, &dc->gl.egl.minorVersion);
191    checkEglError("eglInitialize");
192
193    PixelFormat pf = PIXEL_FORMAT_RGBA_8888;
194    if (rsc->mUserSurfaceConfig.alphaMin == 0) {
195        pf = PIXEL_FORMAT_RGBX_8888;
196    }
197
198    status_t err = EGLUtils::selectConfigForPixelFormat(dc->gl.egl.display, configAttribs,
199                                                        pf, &dc->gl.egl.config);
200    if (err) {
201       LOGE("%p, couldn't find an EGLConfig matching the screen format\n", rsc);
202    }
203    //if (props.mLogVisual) {
204    if (0) {
205        printEGLConfiguration(dc->gl.egl.display, dc->gl.egl.config);
206    }
207    //}
208
209    dc->gl.egl.context = eglCreateContext(dc->gl.egl.display, dc->gl.egl.config,
210                                          EGL_NO_CONTEXT, context_attribs2);
211    checkEglError("eglCreateContext");
212    if (dc->gl.egl.context == EGL_NO_CONTEXT) {
213        LOGE("%p, eglCreateContext returned EGL_NO_CONTEXT", rsc);
214        return false;
215    }
216    gGLContextCount++;
217
218
219    EGLint pbuffer_attribs[] = { EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE };
220    dc->gl.egl.surfaceDefault = eglCreatePbufferSurface(dc->gl.egl.display, dc->gl.egl.config,
221                                                        pbuffer_attribs);
222    checkEglError("eglCreatePbufferSurface");
223    if (dc->gl.egl.surfaceDefault == EGL_NO_SURFACE) {
224        LOGE("eglCreatePbufferSurface returned EGL_NO_SURFACE");
225        rsdGLShutdown(rsc);
226        return false;
227    }
228
229    EGLBoolean ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surfaceDefault,
230                                    dc->gl.egl.surfaceDefault, dc->gl.egl.context);
231    if (ret == EGL_FALSE) {
232        LOGE("eglMakeCurrent returned EGL_FALSE");
233        checkEglError("eglMakeCurrent", ret);
234        rsdGLShutdown(rsc);
235        return false;
236    }
237
238    dc->gl.gl.version = glGetString(GL_VERSION);
239    dc->gl.gl.vendor = glGetString(GL_VENDOR);
240    dc->gl.gl.renderer = glGetString(GL_RENDERER);
241    dc->gl.gl.extensions = glGetString(GL_EXTENSIONS);
242
243    //LOGV("EGL Version %i %i", mEGL.mMajorVersion, mEGL.mMinorVersion);
244    //LOGV("GL Version %s", mGL.mVersion);
245    //LOGV("GL Vendor %s", mGL.mVendor);
246    //LOGV("GL Renderer %s", mGL.mRenderer);
247    //LOGV("GL Extensions %s", mGL.mExtensions);
248
249    const char *verptr = NULL;
250    if (strlen((const char *)dc->gl.gl.version) > 9) {
251        if (!memcmp(dc->gl.gl.version, "OpenGL ES-CM", 12)) {
252            verptr = (const char *)dc->gl.gl.version + 12;
253        }
254        if (!memcmp(dc->gl.gl.version, "OpenGL ES ", 10)) {
255            verptr = (const char *)dc->gl.gl.version + 9;
256        }
257    }
258
259    if (!verptr) {
260        LOGE("Error, OpenGL ES Lite not supported");
261        rsdGLShutdown(rsc);
262        return false;
263    } else {
264        sscanf(verptr, " %i.%i", &dc->gl.gl.majorVersion, &dc->gl.gl.minorVersion);
265    }
266
267    glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &dc->gl.gl.maxVertexAttribs);
268    glGetIntegerv(GL_MAX_VERTEX_UNIFORM_VECTORS, &dc->gl.gl.maxVertexUniformVectors);
269    glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxVertexTextureUnits);
270
271    glGetIntegerv(GL_MAX_VARYING_VECTORS, &dc->gl.gl.maxVaryingVectors);
272    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxTextureImageUnits);
273
274    glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxFragmentTextureImageUnits);
275    glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_VECTORS, &dc->gl.gl.maxFragmentUniformVectors);
276
277    dc->gl.gl.OES_texture_npot = NULL != strstr((const char *)dc->gl.gl.extensions,
278                                                "GL_OES_texture_npot");
279    dc->gl.gl.GL_IMG_texture_npot = NULL != strstr((const char *)dc->gl.gl.extensions,
280                                                   "GL_IMG_texture_npot");
281    dc->gl.gl.GL_NV_texture_npot_2D_mipmap = NULL != strstr((const char *)dc->gl.gl.extensions,
282                                                            "GL_NV_texture_npot_2D_mipmap");
283    dc->gl.gl.EXT_texture_max_aniso = 1.0f;
284    bool hasAniso = NULL != strstr((const char *)dc->gl.gl.extensions,
285                                   "GL_EXT_texture_filter_anisotropic");
286    if (hasAniso) {
287        glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &dc->gl.gl.EXT_texture_max_aniso);
288    }
289
290    if (0) {
291        DumpDebug(dc);
292    }
293
294    dc->gl.shaderCache = new RsdShaderCache();
295    dc->gl.vertexArrayState = new RsdVertexArrayState();
296    dc->gl.vertexArrayState->init(dc->gl.gl.maxVertexAttribs);
297
298    LOGV("initGLThread end %p", rsc);
299    return true;
300}
301
302
303bool rsdGLSetSurface(const Context *rsc, uint32_t w, uint32_t h, ANativeWindow *sur) {
304    RsdHal *dc = (RsdHal *)rsc->mHal.drv;
305
306    EGLBoolean ret;
307    // WAR: Some drivers fail to handle 0 size surfaces correcntly.
308    // Use the pbuffer to avoid this pitfall.
309    if ((dc->gl.egl.surface != NULL) || (w == 0) || (h == 0)) {
310        ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surfaceDefault,
311                             dc->gl.egl.surfaceDefault, dc->gl.egl.context);
312        checkEglError("eglMakeCurrent", ret);
313
314        ret = eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surface);
315        checkEglError("eglDestroySurface", ret);
316
317        dc->gl.egl.surface = NULL;
318        dc->gl.width = 1;
319        dc->gl.height = 1;
320    }
321
322    dc->gl.wndSurface = sur;
323    if (dc->gl.wndSurface != NULL) {
324        dc->gl.width = w;
325        dc->gl.height = h;
326
327        dc->gl.egl.surface = eglCreateWindowSurface(dc->gl.egl.display, dc->gl.egl.config,
328                                                    dc->gl.wndSurface, NULL);
329        checkEglError("eglCreateWindowSurface");
330        if (dc->gl.egl.surface == EGL_NO_SURFACE) {
331            LOGE("eglCreateWindowSurface returned EGL_NO_SURFACE");
332        }
333
334        ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surface,
335                             dc->gl.egl.surface, dc->gl.egl.context);
336        checkEglError("eglMakeCurrent", ret);
337    }
338    return true;
339}
340
341void rsdGLSwap(const android::renderscript::Context *rsc) {
342    RsdHal *dc = (RsdHal *)rsc->mHal.drv;
343    eglSwapBuffers(dc->gl.egl.display, dc->gl.egl.surface);
344}
345
346void rsdGLCheckError(const android::renderscript::Context *rsc,
347                     const char *msg, bool isFatal) {
348    GLenum err = glGetError();
349    if (err != GL_NO_ERROR) {
350        char buf[1024];
351        snprintf(buf, sizeof(buf), "GL Error = 0x%08x, from: %s", err, msg);
352
353        if (isFatal) {
354            rsc->setError(RS_ERROR_FATAL_DRIVER, buf);
355        } else {
356            switch (err) {
357            case GL_OUT_OF_MEMORY:
358                rsc->setError(RS_ERROR_OUT_OF_MEMORY, buf);
359                break;
360            default:
361                rsc->setError(RS_ERROR_DRIVER, buf);
362                break;
363            }
364        }
365
366        LOGE("%p, %s", rsc, buf);
367    }
368
369}
370