1 /*
2 **
3 ** Copyright 2007 The Android Open Source Project
4 **
5 ** Licensed under the Apache License Version 2.0(the "License");
6 ** you may not use this file except in compliance with the License.
7 ** You may obtain a copy of the License at
8 **
9 ** http://www.apache.org/licenses/LICENSE-2.0
10 **
11 ** Unless required by applicable law or agreed to in writing software
12 ** distributed under the License is distributed on an "AS IS" BASIS
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND either express or implied.
14 ** See the License for the specific language governing permissions and
15 ** limitations under the License.
16 */
17
18 #include <assert.h>
19 #include <atomic>
20 #include <errno.h>
21 #include <fcntl.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <sys/ioctl.h>
26 #include <sys/types.h>
27 #include <sys/mman.h>
28 #include <unistd.h>
29
30 #include <log/log.h>
31
32 #include <utils/threads.h>
33 #include <ui/ANativeObjectBase.h>
34 #include <ui/Fence.h>
35 #include <ui/GraphicBufferMapper.h>
36 #include <ui/Rect.h>
37
38 #include <EGL/egl.h>
39 #include <EGL/eglext.h>
40 #include <GLES/gl.h>
41 #include <GLES/glext.h>
42
43 #include <pixelflinger/format.h>
44 #include <pixelflinger/pixelflinger.h>
45
46 #include "context.h"
47 #include "state.h"
48 #include "texture.h"
49 #include "matrix.h"
50
51 #undef NELEM
52 #define NELEM(x) (sizeof(x)/sizeof(*(x)))
53
54 // ----------------------------------------------------------------------------
55
56 EGLBoolean EGLAPI eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw,
57 EGLint left, EGLint top, EGLint width, EGLint height);
58
59 // ----------------------------------------------------------------------------
60 namespace android {
61
62 // ----------------------------------------------------------------------------
63
64 const unsigned int NUM_DISPLAYS = 1;
65
66 static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER;
67 static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER;
68 static pthread_key_t gEGLErrorKey = -1;
69 #ifndef __ANDROID__
70 namespace gl {
71 pthread_key_t gGLKey = -1;
72 }; // namespace gl
73 #endif
74
75 template<typename T>
setError(GLint error,T returnValue)76 static T setError(GLint error, T returnValue) {
77 if (ggl_unlikely(gEGLErrorKey == -1)) {
78 pthread_mutex_lock(&gErrorKeyMutex);
79 if (gEGLErrorKey == -1)
80 pthread_key_create(&gEGLErrorKey, NULL);
81 pthread_mutex_unlock(&gErrorKeyMutex);
82 }
83 pthread_setspecific(gEGLErrorKey, (void*)(uintptr_t)error);
84 return returnValue;
85 }
86
getError()87 static GLint getError() {
88 if (ggl_unlikely(gEGLErrorKey == -1))
89 return EGL_SUCCESS;
90 GLint error = (GLint)(uintptr_t)pthread_getspecific(gEGLErrorKey);
91 if (error == 0) {
92 // The TLS key has been created by another thread, but the value for
93 // this thread has not been initialized.
94 return EGL_SUCCESS;
95 }
96 pthread_setspecific(gEGLErrorKey, (void*)(uintptr_t)EGL_SUCCESS);
97 return error;
98 }
99
100 // ----------------------------------------------------------------------------
101
102 struct egl_display_t
103 {
egl_display_tandroid::egl_display_t104 egl_display_t() : type(0), initialized(0) { }
105
106 static egl_display_t& get_display(EGLDisplay dpy);
107
is_validandroid::egl_display_t108 static EGLBoolean is_valid(EGLDisplay dpy) {
109 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE;
110 }
111
112 NativeDisplayType type;
113 std::atomic_size_t initialized;
114 };
115
116 static egl_display_t gDisplays[NUM_DISPLAYS];
117
get_display(EGLDisplay dpy)118 egl_display_t& egl_display_t::get_display(EGLDisplay dpy) {
119 return gDisplays[uintptr_t(dpy)-1U];
120 }
121
122 struct egl_context_t {
123 enum {
124 IS_CURRENT = 0x00010000,
125 NEVER_CURRENT = 0x00020000
126 };
127 uint32_t flags;
128 EGLDisplay dpy;
129 EGLConfig config;
130 EGLSurface read;
131 EGLSurface draw;
132
contextandroid::egl_context_t133 static inline egl_context_t* context(EGLContext ctx) {
134 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx);
135 return static_cast<egl_context_t*>(gl->rasterizer.base);
136 }
137 };
138
139 // ----------------------------------------------------------------------------
140
141 struct egl_surface_t
142 {
143 enum {
144 PAGE_FLIP = 0x00000001,
145 MAGIC = 0x31415265
146 };
147
148 uint32_t magic;
149 EGLDisplay dpy;
150 EGLConfig config;
151 EGLContext ctx;
152 bool zombie;
153
154 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat);
155 virtual ~egl_surface_t();
156 bool isValid() const;
157 virtual bool initCheck() const = 0;
158
159 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0;
160 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0;
connectandroid::egl_surface_t161 virtual EGLBoolean connect() { return EGL_TRUE; }
disconnectandroid::egl_surface_t162 virtual void disconnect() {}
163 virtual EGLint getWidth() const = 0;
164 virtual EGLint getHeight() const = 0;
165
166 virtual EGLint getHorizontalResolution() const;
167 virtual EGLint getVerticalResolution() const;
168 virtual EGLint getRefreshRate() const;
169 virtual EGLint getSwapBehavior() const;
170 virtual EGLBoolean swapBuffers();
171 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h);
172 protected:
173 GGLSurface depth;
174 };
175
egl_surface_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat)176 egl_surface_t::egl_surface_t(EGLDisplay dpy,
177 EGLConfig config,
178 int32_t depthFormat)
179 : magic(MAGIC), dpy(dpy), config(config), ctx(0), zombie(false)
180 {
181 depth.version = sizeof(GGLSurface);
182 depth.data = 0;
183 depth.format = depthFormat;
184 }
~egl_surface_t()185 egl_surface_t::~egl_surface_t()
186 {
187 magic = 0;
188 free(depth.data);
189 }
isValid() const190 bool egl_surface_t::isValid() const {
191 ALOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this);
192 return magic == MAGIC;
193 }
194
swapBuffers()195 EGLBoolean egl_surface_t::swapBuffers() {
196 return EGL_FALSE;
197 }
getHorizontalResolution() const198 EGLint egl_surface_t::getHorizontalResolution() const {
199 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
200 }
getVerticalResolution() const201 EGLint egl_surface_t::getVerticalResolution() const {
202 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
203 }
getRefreshRate() const204 EGLint egl_surface_t::getRefreshRate() const {
205 return (60 * EGL_DISPLAY_SCALING);
206 }
getSwapBehavior() const207 EGLint egl_surface_t::getSwapBehavior() const {
208 return EGL_BUFFER_PRESERVED;
209 }
setSwapRectangle(EGLint,EGLint,EGLint,EGLint)210 EGLBoolean egl_surface_t::setSwapRectangle(
211 EGLint /*l*/, EGLint /*t*/, EGLint /*w*/, EGLint /*h*/)
212 {
213 return EGL_FALSE;
214 }
215
216 // ----------------------------------------------------------------------------
217
218 struct egl_window_surface_v2_t : public egl_surface_t
219 {
220 egl_window_surface_v2_t(
221 EGLDisplay dpy, EGLConfig config,
222 int32_t depthFormat,
223 ANativeWindow* window);
224
225 ~egl_window_surface_v2_t();
226
initCheckandroid::egl_window_surface_v2_t227 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails
228 virtual EGLBoolean swapBuffers();
229 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
230 virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
231 virtual EGLBoolean connect();
232 virtual void disconnect();
getWidthandroid::egl_window_surface_v2_t233 virtual EGLint getWidth() const { return width; }
getHeightandroid::egl_window_surface_v2_t234 virtual EGLint getHeight() const { return height; }
235 virtual EGLint getHorizontalResolution() const;
236 virtual EGLint getVerticalResolution() const;
237 virtual EGLint getRefreshRate() const;
238 virtual EGLint getSwapBehavior() const;
239 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h);
240
241 private:
242 status_t lock(ANativeWindowBuffer* buf, int usage, void** vaddr);
243 status_t unlock(ANativeWindowBuffer* buf);
244 ANativeWindow* nativeWindow;
245 ANativeWindowBuffer* buffer;
246 ANativeWindowBuffer* previousBuffer;
247 int width;
248 int height;
249 void* bits;
250 GGLFormat const* pixelFormatTable;
251
252 struct Rect {
Rectandroid::egl_window_surface_v2_t::Rect253 inline Rect() { };
Rectandroid::egl_window_surface_v2_t::Rect254 inline Rect(int32_t w, int32_t h)
255 : left(0), top(0), right(w), bottom(h) { }
Rectandroid::egl_window_surface_v2_t::Rect256 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b)
257 : left(l), top(t), right(r), bottom(b) { }
andSelfandroid::egl_window_surface_v2_t::Rect258 Rect& andSelf(const Rect& r) {
259 left = max(left, r.left);
260 top = max(top, r.top);
261 right = min(right, r.right);
262 bottom = min(bottom, r.bottom);
263 return *this;
264 }
isEmptyandroid::egl_window_surface_v2_t::Rect265 bool isEmpty() const {
266 return (left>=right || top>=bottom);
267 }
dumpandroid::egl_window_surface_v2_t::Rect268 void dump(char const* what) {
269 ALOGD("%s { %5d, %5d, w=%5d, h=%5d }",
270 what, left, top, right-left, bottom-top);
271 }
272
273 int32_t left;
274 int32_t top;
275 int32_t right;
276 int32_t bottom;
277 };
278
279 struct Region {
Regionandroid::egl_window_surface_v2_t::Region280 inline Region() : count(0) { }
281 typedef Rect const* const_iterator;
beginandroid::egl_window_surface_v2_t::Region282 const_iterator begin() const { return storage; }
endandroid::egl_window_surface_v2_t::Region283 const_iterator end() const { return storage+count; }
subtractandroid::egl_window_surface_v2_t::Region284 static Region subtract(const Rect& lhs, const Rect& rhs) {
285 Region reg;
286 Rect* storage = reg.storage;
287 if (!lhs.isEmpty()) {
288 if (lhs.top < rhs.top) { // top rect
289 storage->left = lhs.left;
290 storage->top = lhs.top;
291 storage->right = lhs.right;
292 storage->bottom = rhs.top;
293 storage++;
294 }
295 const int32_t top = max(lhs.top, rhs.top);
296 const int32_t bot = min(lhs.bottom, rhs.bottom);
297 if (top < bot) {
298 if (lhs.left < rhs.left) { // left-side rect
299 storage->left = lhs.left;
300 storage->top = top;
301 storage->right = rhs.left;
302 storage->bottom = bot;
303 storage++;
304 }
305 if (lhs.right > rhs.right) { // right-side rect
306 storage->left = rhs.right;
307 storage->top = top;
308 storage->right = lhs.right;
309 storage->bottom = bot;
310 storage++;
311 }
312 }
313 if (lhs.bottom > rhs.bottom) { // bottom rect
314 storage->left = lhs.left;
315 storage->top = rhs.bottom;
316 storage->right = lhs.right;
317 storage->bottom = lhs.bottom;
318 storage++;
319 }
320 reg.count = storage - reg.storage;
321 }
322 return reg;
323 }
isEmptyandroid::egl_window_surface_v2_t::Region324 bool isEmpty() const {
325 return count<=0;
326 }
327 private:
328 Rect storage[4];
329 ssize_t count;
330 };
331
332 void copyBlt(
333 ANativeWindowBuffer* dst, void* dst_vaddr,
334 ANativeWindowBuffer* src, void const* src_vaddr,
335 const Region& clip);
336
337 Rect dirtyRegion;
338 Rect oldDirtyRegion;
339 };
340
egl_window_surface_v2_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat,ANativeWindow * window)341 egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy,
342 EGLConfig config,
343 int32_t depthFormat,
344 ANativeWindow* window)
345 : egl_surface_t(dpy, config, depthFormat),
346 nativeWindow(window), buffer(0), previousBuffer(0), bits(NULL)
347 {
348
349 pixelFormatTable = gglGetPixelFormatTable();
350
351 // keep a reference on the window
352 nativeWindow->common.incRef(&nativeWindow->common);
353 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width);
354 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height);
355 }
356
~egl_window_surface_v2_t()357 egl_window_surface_v2_t::~egl_window_surface_v2_t() {
358 if (buffer) {
359 buffer->common.decRef(&buffer->common);
360 }
361 if (previousBuffer) {
362 previousBuffer->common.decRef(&previousBuffer->common);
363 }
364 nativeWindow->common.decRef(&nativeWindow->common);
365 }
366
connect()367 EGLBoolean egl_window_surface_v2_t::connect()
368 {
369 // we're intending to do software rendering
370 native_window_set_usage(nativeWindow,
371 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
372
373 // dequeue a buffer
374 int fenceFd = -1;
375 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer,
376 &fenceFd) != NO_ERROR) {
377 return setError(EGL_BAD_ALLOC, EGL_FALSE);
378 }
379
380 // wait for the buffer
381 sp<Fence> fence(new Fence(fenceFd));
382 if (fence->wait(Fence::TIMEOUT_NEVER) != NO_ERROR) {
383 nativeWindow->cancelBuffer(nativeWindow, buffer, fenceFd);
384 return setError(EGL_BAD_ALLOC, EGL_FALSE);
385 }
386
387 // allocate a corresponding depth-buffer
388 width = buffer->width;
389 height = buffer->height;
390 if (depth.format) {
391 depth.width = width;
392 depth.height = height;
393 depth.stride = depth.width; // use the width here
394 uint64_t allocSize = static_cast<uint64_t>(depth.stride) *
395 static_cast<uint64_t>(depth.height) * 2;
396 if (depth.stride < 0 || depth.height > INT_MAX ||
397 allocSize > UINT32_MAX) {
398 return setError(EGL_BAD_ALLOC, EGL_FALSE);
399 }
400 depth.data = (GGLubyte*)malloc(allocSize);
401 if (depth.data == 0) {
402 return setError(EGL_BAD_ALLOC, EGL_FALSE);
403 }
404 }
405
406 // keep a reference on the buffer
407 buffer->common.incRef(&buffer->common);
408
409 // pin the buffer down
410 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN |
411 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) {
412 ALOGE("connect() failed to lock buffer %p (%ux%u)",
413 buffer, buffer->width, buffer->height);
414 return setError(EGL_BAD_ACCESS, EGL_FALSE);
415 // FIXME: we should make sure we're not accessing the buffer anymore
416 }
417 return EGL_TRUE;
418 }
419
disconnect()420 void egl_window_surface_v2_t::disconnect()
421 {
422 if (buffer && bits) {
423 bits = NULL;
424 unlock(buffer);
425 }
426 if (buffer) {
427 nativeWindow->cancelBuffer(nativeWindow, buffer, -1);
428 buffer->common.decRef(&buffer->common);
429 buffer = 0;
430 }
431 if (previousBuffer) {
432 previousBuffer->common.decRef(&previousBuffer->common);
433 previousBuffer = 0;
434 }
435 }
436
lock(ANativeWindowBuffer * buf,int usage,void ** vaddr)437 status_t egl_window_surface_v2_t::lock(
438 ANativeWindowBuffer* buf, int usage, void** vaddr)
439 {
440 auto& mapper = GraphicBufferMapper::get();
441 return mapper.lock(buf->handle, usage,
442 android::Rect(buf->width, buf->height), vaddr);
443 }
444
unlock(ANativeWindowBuffer * buf)445 status_t egl_window_surface_v2_t::unlock(ANativeWindowBuffer* buf)
446 {
447 if (!buf) return BAD_VALUE;
448 auto& mapper = GraphicBufferMapper::get();
449 return mapper.unlock(buf->handle);
450 }
451
copyBlt(ANativeWindowBuffer * dst,void * dst_vaddr,ANativeWindowBuffer * src,void const * src_vaddr,const Region & clip)452 void egl_window_surface_v2_t::copyBlt(
453 ANativeWindowBuffer* dst, void* dst_vaddr,
454 ANativeWindowBuffer* src, void const* src_vaddr,
455 const Region& clip)
456 {
457 // NOTE: dst and src must be the same format
458
459 Region::const_iterator cur = clip.begin();
460 Region::const_iterator end = clip.end();
461
462 const size_t bpp = pixelFormatTable[src->format].size;
463 const size_t dbpr = dst->stride * bpp;
464 const size_t sbpr = src->stride * bpp;
465
466 uint8_t const * const src_bits = (uint8_t const *)src_vaddr;
467 uint8_t * const dst_bits = (uint8_t *)dst_vaddr;
468
469 while (cur != end) {
470 const Rect& r(*cur++);
471 ssize_t w = r.right - r.left;
472 ssize_t h = r.bottom - r.top;
473 if (w <= 0 || h<=0) continue;
474 size_t size = w * bpp;
475 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp;
476 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp;
477 if (dbpr==sbpr && size==sbpr) {
478 size *= h;
479 h = 1;
480 }
481 do {
482 memcpy(d, s, size);
483 d += dbpr;
484 s += sbpr;
485 } while (--h > 0);
486 }
487 }
488
swapBuffers()489 EGLBoolean egl_window_surface_v2_t::swapBuffers()
490 {
491 if (!buffer) {
492 return setError(EGL_BAD_ACCESS, EGL_FALSE);
493 }
494
495 /*
496 * Handle eglSetSwapRectangleANDROID()
497 * We copyback from the front buffer
498 */
499 if (!dirtyRegion.isEmpty()) {
500 dirtyRegion.andSelf(Rect(buffer->width, buffer->height));
501 if (previousBuffer) {
502 // This was const Region copyBack, but that causes an
503 // internal compile error on simulator builds
504 /*const*/ Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion));
505 if (!copyBack.isEmpty()) {
506 void* prevBits;
507 if (lock(previousBuffer,
508 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) {
509 // copy from previousBuffer to buffer
510 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack);
511 unlock(previousBuffer);
512 }
513 }
514 }
515 oldDirtyRegion = dirtyRegion;
516 }
517
518 if (previousBuffer) {
519 previousBuffer->common.decRef(&previousBuffer->common);
520 previousBuffer = 0;
521 }
522
523 unlock(buffer);
524 previousBuffer = buffer;
525 nativeWindow->queueBuffer(nativeWindow, buffer, -1);
526 buffer = 0;
527
528 // dequeue a new buffer
529 int fenceFd = -1;
530 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer, &fenceFd) == NO_ERROR) {
531 sp<Fence> fence(new Fence(fenceFd));
532 if (fence->wait(Fence::TIMEOUT_NEVER)) {
533 nativeWindow->cancelBuffer(nativeWindow, buffer, fenceFd);
534 return setError(EGL_BAD_ALLOC, EGL_FALSE);
535 }
536
537 // reallocate the depth-buffer if needed
538 if ((width != buffer->width) || (height != buffer->height)) {
539 // TODO: we probably should reset the swap rect here
540 // if the window size has changed
541 width = buffer->width;
542 height = buffer->height;
543 if (depth.data) {
544 free(depth.data);
545 depth.width = width;
546 depth.height = height;
547 depth.stride = buffer->stride;
548 uint64_t allocSize = static_cast<uint64_t>(depth.stride) *
549 static_cast<uint64_t>(depth.height) * 2;
550 if (depth.stride < 0 || depth.height > INT_MAX ||
551 allocSize > UINT32_MAX) {
552 setError(EGL_BAD_ALLOC, EGL_FALSE);
553 return EGL_FALSE;
554 }
555 depth.data = (GGLubyte*)malloc(allocSize);
556 if (depth.data == 0) {
557 setError(EGL_BAD_ALLOC, EGL_FALSE);
558 return EGL_FALSE;
559 }
560 }
561 }
562
563 // keep a reference on the buffer
564 buffer->common.incRef(&buffer->common);
565
566 // finally pin the buffer down
567 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN |
568 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) {
569 ALOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)",
570 buffer, buffer->width, buffer->height);
571 return setError(EGL_BAD_ACCESS, EGL_FALSE);
572 // FIXME: we should make sure we're not accessing the buffer anymore
573 }
574 } else {
575 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
576 }
577
578 return EGL_TRUE;
579 }
580
setSwapRectangle(EGLint l,EGLint t,EGLint w,EGLint h)581 EGLBoolean egl_window_surface_v2_t::setSwapRectangle(
582 EGLint l, EGLint t, EGLint w, EGLint h)
583 {
584 dirtyRegion = Rect(l, t, l+w, t+h);
585 return EGL_TRUE;
586 }
587
bindDrawSurface(ogles_context_t * gl)588 EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl)
589 {
590 GGLSurface buffer;
591 buffer.version = sizeof(GGLSurface);
592 buffer.width = this->buffer->width;
593 buffer.height = this->buffer->height;
594 buffer.stride = this->buffer->stride;
595 buffer.data = (GGLubyte*)bits;
596 buffer.format = this->buffer->format;
597 gl->rasterizer.procs.colorBuffer(gl, &buffer);
598 if (depth.data != gl->rasterizer.state.buffers.depth.data)
599 gl->rasterizer.procs.depthBuffer(gl, &depth);
600
601 return EGL_TRUE;
602 }
bindReadSurface(ogles_context_t * gl)603 EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl)
604 {
605 GGLSurface buffer;
606 buffer.version = sizeof(GGLSurface);
607 buffer.width = this->buffer->width;
608 buffer.height = this->buffer->height;
609 buffer.stride = this->buffer->stride;
610 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!!
611 buffer.format = this->buffer->format;
612 gl->rasterizer.procs.readBuffer(gl, &buffer);
613 return EGL_TRUE;
614 }
getHorizontalResolution() const615 EGLint egl_window_surface_v2_t::getHorizontalResolution() const {
616 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
617 }
getVerticalResolution() const618 EGLint egl_window_surface_v2_t::getVerticalResolution() const {
619 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
620 }
getRefreshRate() const621 EGLint egl_window_surface_v2_t::getRefreshRate() const {
622 return (60 * EGL_DISPLAY_SCALING); // FIXME
623 }
getSwapBehavior() const624 EGLint egl_window_surface_v2_t::getSwapBehavior() const
625 {
626 /*
627 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves
628 * the content of the swapped buffer.
629 *
630 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost.
631 *
632 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED
633 * only applies to the area specified by eglSetSwapRectangleANDROID(), that
634 * is, everything outside of this area is preserved.
635 *
636 * This implementation of EGL assumes the later case.
637 *
638 */
639
640 return EGL_BUFFER_DESTROYED;
641 }
642
643 // ----------------------------------------------------------------------------
644
645 struct egl_pixmap_surface_t : public egl_surface_t
646 {
647 egl_pixmap_surface_t(
648 EGLDisplay dpy, EGLConfig config,
649 int32_t depthFormat,
650 egl_native_pixmap_t const * pixmap);
651
~egl_pixmap_surface_tandroid::egl_pixmap_surface_t652 virtual ~egl_pixmap_surface_t() { }
653
initCheckandroid::egl_pixmap_surface_t654 virtual bool initCheck() const { return !depth.format || depth.data!=0; }
655 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
656 virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
getWidthandroid::egl_pixmap_surface_t657 virtual EGLint getWidth() const { return nativePixmap.width; }
getHeightandroid::egl_pixmap_surface_t658 virtual EGLint getHeight() const { return nativePixmap.height; }
659 private:
660 egl_native_pixmap_t nativePixmap;
661 };
662
egl_pixmap_surface_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat,egl_native_pixmap_t const * pixmap)663 egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy,
664 EGLConfig config,
665 int32_t depthFormat,
666 egl_native_pixmap_t const * pixmap)
667 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap)
668 {
669 if (depthFormat) {
670 depth.width = pixmap->width;
671 depth.height = pixmap->height;
672 depth.stride = depth.width; // use the width here
673 uint64_t allocSize = static_cast<uint64_t>(depth.stride) *
674 static_cast<uint64_t>(depth.height) * 2;
675 if (depth.stride < 0 || depth.height > INT_MAX ||
676 allocSize > UINT32_MAX) {
677 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
678 return;
679 }
680 depth.data = (GGLubyte*)malloc(allocSize);
681 if (depth.data == 0) {
682 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
683 }
684 }
685 }
bindDrawSurface(ogles_context_t * gl)686 EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl)
687 {
688 GGLSurface buffer;
689 buffer.version = sizeof(GGLSurface);
690 buffer.width = nativePixmap.width;
691 buffer.height = nativePixmap.height;
692 buffer.stride = nativePixmap.stride;
693 buffer.data = nativePixmap.data;
694 buffer.format = nativePixmap.format;
695
696 gl->rasterizer.procs.colorBuffer(gl, &buffer);
697 if (depth.data != gl->rasterizer.state.buffers.depth.data)
698 gl->rasterizer.procs.depthBuffer(gl, &depth);
699 return EGL_TRUE;
700 }
bindReadSurface(ogles_context_t * gl)701 EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl)
702 {
703 GGLSurface buffer;
704 buffer.version = sizeof(GGLSurface);
705 buffer.width = nativePixmap.width;
706 buffer.height = nativePixmap.height;
707 buffer.stride = nativePixmap.stride;
708 buffer.data = nativePixmap.data;
709 buffer.format = nativePixmap.format;
710 gl->rasterizer.procs.readBuffer(gl, &buffer);
711 return EGL_TRUE;
712 }
713
714 // ----------------------------------------------------------------------------
715
716 struct egl_pbuffer_surface_t : public egl_surface_t
717 {
718 egl_pbuffer_surface_t(
719 EGLDisplay dpy, EGLConfig config, int32_t depthFormat,
720 int32_t w, int32_t h, int32_t f);
721
722 virtual ~egl_pbuffer_surface_t();
723
initCheckandroid::egl_pbuffer_surface_t724 virtual bool initCheck() const { return pbuffer.data != 0; }
725 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
726 virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
getWidthandroid::egl_pbuffer_surface_t727 virtual EGLint getWidth() const { return pbuffer.width; }
getHeightandroid::egl_pbuffer_surface_t728 virtual EGLint getHeight() const { return pbuffer.height; }
729 private:
730 GGLSurface pbuffer;
731 };
732
egl_pbuffer_surface_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat,int32_t w,int32_t h,int32_t f)733 egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy,
734 EGLConfig config, int32_t depthFormat,
735 int32_t w, int32_t h, int32_t f)
736 : egl_surface_t(dpy, config, depthFormat)
737 {
738 size_t size = w*h;
739 switch (f) {
740 case GGL_PIXEL_FORMAT_A_8: size *= 1; break;
741 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break;
742 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break;
743 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break;
744 case GGL_PIXEL_FORMAT_BGRA_8888: size *= 4; break;
745 default:
746 ALOGE("incompatible pixel format for pbuffer (format=%d)", f);
747 pbuffer.data = 0;
748 break;
749 }
750 pbuffer.version = sizeof(GGLSurface);
751 pbuffer.width = w;
752 pbuffer.height = h;
753 pbuffer.stride = w;
754 pbuffer.data = (GGLubyte*)malloc(size);
755 pbuffer.format = f;
756
757 if (depthFormat) {
758 depth.width = pbuffer.width;
759 depth.height = pbuffer.height;
760 depth.stride = depth.width; // use the width here
761 uint64_t allocSize = static_cast<uint64_t>(depth.stride) *
762 static_cast<uint64_t>(depth.height) * 2;
763 if (depth.stride < 0 || depth.height > INT_MAX ||
764 allocSize > UINT32_MAX) {
765 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
766 return;
767 }
768 depth.data = (GGLubyte*)malloc(allocSize);
769 if (depth.data == 0) {
770 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
771 return;
772 }
773 }
774 }
~egl_pbuffer_surface_t()775 egl_pbuffer_surface_t::~egl_pbuffer_surface_t() {
776 free(pbuffer.data);
777 }
bindDrawSurface(ogles_context_t * gl)778 EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl)
779 {
780 gl->rasterizer.procs.colorBuffer(gl, &pbuffer);
781 if (depth.data != gl->rasterizer.state.buffers.depth.data)
782 gl->rasterizer.procs.depthBuffer(gl, &depth);
783 return EGL_TRUE;
784 }
bindReadSurface(ogles_context_t * gl)785 EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl)
786 {
787 gl->rasterizer.procs.readBuffer(gl, &pbuffer);
788 return EGL_TRUE;
789 }
790
791 // ----------------------------------------------------------------------------
792
793 struct config_pair_t {
794 GLint key;
795 GLint value;
796 };
797
798 struct configs_t {
799 const config_pair_t* array;
800 int size;
801 };
802
803 struct config_management_t {
804 GLint key;
805 bool (*match)(GLint reqValue, GLint confValue);
atLeastandroid::config_management_t806 static bool atLeast(GLint reqValue, GLint confValue) {
807 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue);
808 }
exactandroid::config_management_t809 static bool exact(GLint reqValue, GLint confValue) {
810 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue);
811 }
maskandroid::config_management_t812 static bool mask(GLint reqValue, GLint confValue) {
813 return (confValue & reqValue) == reqValue;
814 }
ignoreandroid::config_management_t815 static bool ignore(GLint /*reqValue*/, GLint /*confValue*/) {
816 return true;
817 }
818 };
819
820 // ----------------------------------------------------------------------------
821
822 #define VERSION_MAJOR 1
823 #define VERSION_MINOR 2
824 static char const * const gVendorString = "Google Inc.";
825 static char const * const gVersionString = "1.2 Android Driver 1.2.0";
826 static char const * const gClientApiString = "OpenGL_ES";
827 static char const * const gExtensionsString =
828 "EGL_KHR_fence_sync "
829 "EGL_KHR_image_base "
830 // "KHR_image_pixmap "
831 "EGL_ANDROID_image_native_buffer "
832 "EGL_ANDROID_swap_rectangle "
833 ;
834
835 // ----------------------------------------------------------------------------
836
837 struct extention_map_t {
838 const char * const name;
839 __eglMustCastToProperFunctionPointerType address;
840 };
841
842 static const extention_map_t gExtentionMap[] = {
843 { "glDrawTexsOES",
844 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES },
845 { "glDrawTexiOES",
846 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES },
847 { "glDrawTexfOES",
848 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES },
849 { "glDrawTexxOES",
850 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES },
851 { "glDrawTexsvOES",
852 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES },
853 { "glDrawTexivOES",
854 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES },
855 { "glDrawTexfvOES",
856 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES },
857 { "glDrawTexxvOES",
858 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES },
859 { "glQueryMatrixxOES",
860 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES },
861 { "glEGLImageTargetTexture2DOES",
862 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES },
863 { "glEGLImageTargetRenderbufferStorageOES",
864 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES },
865 { "glClipPlanef",
866 (__eglMustCastToProperFunctionPointerType)&glClipPlanef },
867 { "glClipPlanex",
868 (__eglMustCastToProperFunctionPointerType)&glClipPlanex },
869 { "glBindBuffer",
870 (__eglMustCastToProperFunctionPointerType)&glBindBuffer },
871 { "glBufferData",
872 (__eglMustCastToProperFunctionPointerType)&glBufferData },
873 { "glBufferSubData",
874 (__eglMustCastToProperFunctionPointerType)&glBufferSubData },
875 { "glDeleteBuffers",
876 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers },
877 { "glGenBuffers",
878 (__eglMustCastToProperFunctionPointerType)&glGenBuffers },
879 { "eglCreateImageKHR",
880 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR },
881 { "eglDestroyImageKHR",
882 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR },
883 { "eglCreateSyncKHR",
884 (__eglMustCastToProperFunctionPointerType)&eglCreateSyncKHR },
885 { "eglDestroySyncKHR",
886 (__eglMustCastToProperFunctionPointerType)&eglDestroySyncKHR },
887 { "eglClientWaitSyncKHR",
888 (__eglMustCastToProperFunctionPointerType)&eglClientWaitSyncKHR },
889 { "eglGetSyncAttribKHR",
890 (__eglMustCastToProperFunctionPointerType)&eglGetSyncAttribKHR },
891 { "eglSetSwapRectangleANDROID",
892 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID },
893 };
894
895 /*
896 * In the lists below, attributes names MUST be sorted.
897 * Additionally, all configs must be sorted according to
898 * the EGL specification.
899 */
900
901 static config_pair_t const config_base_attribute_list[] = {
902 { EGL_STENCIL_SIZE, 0 },
903 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG },
904 { EGL_LEVEL, 0 },
905 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS },
906 { EGL_MAX_PBUFFER_PIXELS,
907 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS },
908 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS },
909 { EGL_NATIVE_RENDERABLE, EGL_TRUE },
910 { EGL_NATIVE_VISUAL_ID, 0 },
911 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 },
912 { EGL_SAMPLES, 0 },
913 { EGL_SAMPLE_BUFFERS, 0 },
914 { EGL_TRANSPARENT_TYPE, EGL_NONE },
915 { EGL_TRANSPARENT_BLUE_VALUE, 0 },
916 { EGL_TRANSPARENT_GREEN_VALUE, 0 },
917 { EGL_TRANSPARENT_RED_VALUE, 0 },
918 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE },
919 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE },
920 { EGL_MIN_SWAP_INTERVAL, 1 },
921 { EGL_MAX_SWAP_INTERVAL, 1 },
922 { EGL_LUMINANCE_SIZE, 0 },
923 { EGL_ALPHA_MASK_SIZE, 0 },
924 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER },
925 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT },
926 { EGL_CONFORMANT, 0 }
927 };
928
929 // These configs can override the base attribute list
930 // NOTE: when adding a config here, don't forget to update eglCreate*Surface()
931
932 // 565 configs
933 static config_pair_t const config_0_attribute_list[] = {
934 { EGL_BUFFER_SIZE, 16 },
935 { EGL_ALPHA_SIZE, 0 },
936 { EGL_BLUE_SIZE, 5 },
937 { EGL_GREEN_SIZE, 6 },
938 { EGL_RED_SIZE, 5 },
939 { EGL_DEPTH_SIZE, 0 },
940 { EGL_CONFIG_ID, 0 },
941 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 },
942 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
943 };
944
945 static config_pair_t const config_1_attribute_list[] = {
946 { EGL_BUFFER_SIZE, 16 },
947 { EGL_ALPHA_SIZE, 0 },
948 { EGL_BLUE_SIZE, 5 },
949 { EGL_GREEN_SIZE, 6 },
950 { EGL_RED_SIZE, 5 },
951 { EGL_DEPTH_SIZE, 16 },
952 { EGL_CONFIG_ID, 1 },
953 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 },
954 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
955 };
956
957 // RGB 888 configs
958 static config_pair_t const config_2_attribute_list[] = {
959 { EGL_BUFFER_SIZE, 32 },
960 { EGL_ALPHA_SIZE, 0 },
961 { EGL_BLUE_SIZE, 8 },
962 { EGL_GREEN_SIZE, 8 },
963 { EGL_RED_SIZE, 8 },
964 { EGL_DEPTH_SIZE, 0 },
965 { EGL_CONFIG_ID, 6 },
966 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 },
967 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
968 };
969
970 static config_pair_t const config_3_attribute_list[] = {
971 { EGL_BUFFER_SIZE, 32 },
972 { EGL_ALPHA_SIZE, 0 },
973 { EGL_BLUE_SIZE, 8 },
974 { EGL_GREEN_SIZE, 8 },
975 { EGL_RED_SIZE, 8 },
976 { EGL_DEPTH_SIZE, 16 },
977 { EGL_CONFIG_ID, 7 },
978 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 },
979 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
980 };
981
982 // 8888 configs
983 static config_pair_t const config_4_attribute_list[] = {
984 { EGL_BUFFER_SIZE, 32 },
985 { EGL_ALPHA_SIZE, 8 },
986 { EGL_BLUE_SIZE, 8 },
987 { EGL_GREEN_SIZE, 8 },
988 { EGL_RED_SIZE, 8 },
989 { EGL_DEPTH_SIZE, 0 },
990 { EGL_CONFIG_ID, 2 },
991 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 },
992 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
993 };
994
995 static config_pair_t const config_5_attribute_list[] = {
996 { EGL_BUFFER_SIZE, 32 },
997 { EGL_ALPHA_SIZE, 8 },
998 { EGL_BLUE_SIZE, 8 },
999 { EGL_GREEN_SIZE, 8 },
1000 { EGL_RED_SIZE, 8 },
1001 { EGL_DEPTH_SIZE, 16 },
1002 { EGL_CONFIG_ID, 3 },
1003 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 },
1004 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
1005 };
1006
1007 // A8 configs
1008 static config_pair_t const config_6_attribute_list[] = {
1009 { EGL_BUFFER_SIZE, 8 },
1010 { EGL_ALPHA_SIZE, 8 },
1011 { EGL_BLUE_SIZE, 0 },
1012 { EGL_GREEN_SIZE, 0 },
1013 { EGL_RED_SIZE, 0 },
1014 { EGL_DEPTH_SIZE, 0 },
1015 { EGL_CONFIG_ID, 4 },
1016 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 },
1017 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
1018 };
1019
1020 static config_pair_t const config_7_attribute_list[] = {
1021 { EGL_BUFFER_SIZE, 8 },
1022 { EGL_ALPHA_SIZE, 8 },
1023 { EGL_BLUE_SIZE, 0 },
1024 { EGL_GREEN_SIZE, 0 },
1025 { EGL_RED_SIZE, 0 },
1026 { EGL_DEPTH_SIZE, 16 },
1027 { EGL_CONFIG_ID, 5 },
1028 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 },
1029 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
1030 };
1031
1032 // BGRA 8888 config
1033 static config_pair_t const config_8_attribute_list[] = {
1034 { EGL_BUFFER_SIZE, 32 },
1035 { EGL_ALPHA_SIZE, 8 },
1036 { EGL_BLUE_SIZE, 8 },
1037 { EGL_GREEN_SIZE, 8 },
1038 { EGL_RED_SIZE, 8 },
1039 { EGL_DEPTH_SIZE, 0 },
1040 { EGL_CONFIG_ID, 8 },
1041 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_BGRA_8888 },
1042 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
1043 };
1044
1045 static configs_t const gConfigs[] = {
1046 { config_0_attribute_list, NELEM(config_0_attribute_list) },
1047 { config_1_attribute_list, NELEM(config_1_attribute_list) },
1048 { config_2_attribute_list, NELEM(config_2_attribute_list) },
1049 { config_3_attribute_list, NELEM(config_3_attribute_list) },
1050 { config_4_attribute_list, NELEM(config_4_attribute_list) },
1051 { config_5_attribute_list, NELEM(config_5_attribute_list) },
1052 { config_6_attribute_list, NELEM(config_6_attribute_list) },
1053 { config_7_attribute_list, NELEM(config_7_attribute_list) },
1054 { config_8_attribute_list, NELEM(config_8_attribute_list) },
1055 };
1056
1057 static config_management_t const gConfigManagement[] = {
1058 { EGL_BUFFER_SIZE, config_management_t::atLeast },
1059 { EGL_ALPHA_SIZE, config_management_t::atLeast },
1060 { EGL_BLUE_SIZE, config_management_t::atLeast },
1061 { EGL_GREEN_SIZE, config_management_t::atLeast },
1062 { EGL_RED_SIZE, config_management_t::atLeast },
1063 { EGL_DEPTH_SIZE, config_management_t::atLeast },
1064 { EGL_STENCIL_SIZE, config_management_t::atLeast },
1065 { EGL_CONFIG_CAVEAT, config_management_t::exact },
1066 { EGL_CONFIG_ID, config_management_t::exact },
1067 { EGL_LEVEL, config_management_t::exact },
1068 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::ignore },
1069 { EGL_MAX_PBUFFER_PIXELS, config_management_t::ignore },
1070 { EGL_MAX_PBUFFER_WIDTH, config_management_t::ignore },
1071 { EGL_NATIVE_RENDERABLE, config_management_t::exact },
1072 { EGL_NATIVE_VISUAL_ID, config_management_t::ignore },
1073 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact },
1074 { EGL_SAMPLES, config_management_t::exact },
1075 { EGL_SAMPLE_BUFFERS, config_management_t::exact },
1076 { EGL_SURFACE_TYPE, config_management_t::mask },
1077 { EGL_TRANSPARENT_TYPE, config_management_t::exact },
1078 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact },
1079 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact },
1080 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact },
1081 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact },
1082 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact },
1083 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact },
1084 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact },
1085 { EGL_LUMINANCE_SIZE, config_management_t::atLeast },
1086 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast },
1087 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact },
1088 { EGL_RENDERABLE_TYPE, config_management_t::mask },
1089 { EGL_CONFORMANT, config_management_t::mask }
1090 };
1091
1092
1093 static config_pair_t const config_defaults[] = {
1094 // attributes that are not specified are simply ignored, if a particular
1095 // one needs not be ignored, it must be specified here, eg:
1096 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT },
1097 };
1098
1099 // ----------------------------------------------------------------------------
1100
getConfigFormatInfo(EGLint configID,int32_t & pixelFormat,int32_t & depthFormat)1101 static status_t getConfigFormatInfo(EGLint configID,
1102 int32_t& pixelFormat, int32_t& depthFormat)
1103 {
1104 switch(configID) {
1105 case 0:
1106 pixelFormat = GGL_PIXEL_FORMAT_RGB_565;
1107 depthFormat = 0;
1108 break;
1109 case 1:
1110 pixelFormat = GGL_PIXEL_FORMAT_RGB_565;
1111 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1112 break;
1113 case 2:
1114 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888;
1115 depthFormat = 0;
1116 break;
1117 case 3:
1118 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888;
1119 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1120 break;
1121 case 4:
1122 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
1123 depthFormat = 0;
1124 break;
1125 case 5:
1126 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
1127 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1128 break;
1129 case 6:
1130 pixelFormat = GGL_PIXEL_FORMAT_A_8;
1131 depthFormat = 0;
1132 break;
1133 case 7:
1134 pixelFormat = GGL_PIXEL_FORMAT_A_8;
1135 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1136 break;
1137 case 8:
1138 pixelFormat = GGL_PIXEL_FORMAT_BGRA_8888;
1139 depthFormat = 0;
1140 break;
1141 default:
1142 return NAME_NOT_FOUND;
1143 }
1144 return NO_ERROR;
1145 }
1146
1147 // ----------------------------------------------------------------------------
1148
1149 template<typename T>
binarySearch(T const sortedArray[],int first,int last,EGLint key)1150 static int binarySearch(T const sortedArray[], int first, int last, EGLint key)
1151 {
1152 while (first <= last) {
1153 int mid = (first + last) / 2;
1154 if (key > sortedArray[mid].key) {
1155 first = mid + 1;
1156 } else if (key < sortedArray[mid].key) {
1157 last = mid - 1;
1158 } else {
1159 return mid;
1160 }
1161 }
1162 return -1;
1163 }
1164
isAttributeMatching(int i,EGLint attr,EGLint val)1165 static int isAttributeMatching(int i, EGLint attr, EGLint val)
1166 {
1167 // look for the attribute in all of our configs
1168 config_pair_t const* configFound = gConfigs[i].array;
1169 int index = binarySearch<config_pair_t>(
1170 gConfigs[i].array,
1171 0, gConfigs[i].size-1,
1172 attr);
1173 if (index < 0) {
1174 configFound = config_base_attribute_list;
1175 index = binarySearch<config_pair_t>(
1176 config_base_attribute_list,
1177 0, NELEM(config_base_attribute_list)-1,
1178 attr);
1179 }
1180 if (index >= 0) {
1181 // attribute found, check if this config could match
1182 int cfgMgtIndex = binarySearch<config_management_t>(
1183 gConfigManagement,
1184 0, NELEM(gConfigManagement)-1,
1185 attr);
1186 if (cfgMgtIndex >= 0) {
1187 bool match = gConfigManagement[cfgMgtIndex].match(
1188 val, configFound[index].value);
1189 if (match) {
1190 // this config matches
1191 return 1;
1192 }
1193 } else {
1194 // attribute not found. this should NEVER happen.
1195 }
1196 } else {
1197 // error, this attribute doesn't exist
1198 }
1199 return 0;
1200 }
1201
makeCurrent(ogles_context_t * gl)1202 static int makeCurrent(ogles_context_t* gl)
1203 {
1204 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific();
1205 if (gl) {
1206 egl_context_t* c = egl_context_t::context(gl);
1207 if (c->flags & egl_context_t::IS_CURRENT) {
1208 if (current != gl) {
1209 // it is an error to set a context current, if it's already
1210 // current to another thread
1211 return -1;
1212 }
1213 } else {
1214 if (current) {
1215 // mark the current context as not current, and flush
1216 glFlush();
1217 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT;
1218 }
1219 }
1220 if (!(c->flags & egl_context_t::IS_CURRENT)) {
1221 // The context is not current, make it current!
1222 setGlThreadSpecific(gl);
1223 c->flags |= egl_context_t::IS_CURRENT;
1224 }
1225 } else {
1226 if (current) {
1227 // mark the current context as not current, and flush
1228 glFlush();
1229 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT;
1230 }
1231 // this thread has no context attached to it
1232 setGlThreadSpecific(0);
1233 }
1234 return 0;
1235 }
1236
getConfigAttrib(EGLDisplay,EGLConfig config,EGLint attribute,EGLint * value)1237 static EGLBoolean getConfigAttrib(EGLDisplay /*dpy*/, EGLConfig config,
1238 EGLint attribute, EGLint *value)
1239 {
1240 size_t numConfigs = NELEM(gConfigs);
1241 int index = (int)(uintptr_t)config;
1242 if (uint32_t(index) >= numConfigs)
1243 return setError(EGL_BAD_CONFIG, EGL_FALSE);
1244
1245 int attrIndex;
1246 attrIndex = binarySearch<config_pair_t>(
1247 gConfigs[index].array,
1248 0, gConfigs[index].size-1,
1249 attribute);
1250 if (attrIndex>=0) {
1251 *value = gConfigs[index].array[attrIndex].value;
1252 return EGL_TRUE;
1253 }
1254
1255 attrIndex = binarySearch<config_pair_t>(
1256 config_base_attribute_list,
1257 0, NELEM(config_base_attribute_list)-1,
1258 attribute);
1259 if (attrIndex>=0) {
1260 *value = config_base_attribute_list[attrIndex].value;
1261 return EGL_TRUE;
1262 }
1263 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
1264 }
1265
createWindowSurface(EGLDisplay dpy,EGLConfig config,NativeWindowType window,const EGLint *)1266 static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config,
1267 NativeWindowType window, const EGLint* /*attrib_list*/)
1268 {
1269 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1270 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1271 if (window == 0)
1272 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1273
1274 EGLint surfaceType;
1275 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
1276 return EGL_FALSE;
1277
1278 if (!(surfaceType & EGL_WINDOW_BIT))
1279 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1280
1281 if (static_cast<ANativeWindow*>(window)->common.magic !=
1282 ANDROID_NATIVE_WINDOW_MAGIC) {
1283 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
1284 }
1285
1286 EGLint configID;
1287 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
1288 return EGL_FALSE;
1289
1290 int32_t depthFormat;
1291 int32_t pixelFormat;
1292 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
1293 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1294 }
1295
1296 // FIXME: we don't have access to the pixelFormat here just yet.
1297 // (it's possible that the surface is not fully initialized)
1298 // maybe this should be done after the page-flip
1299 //if (EGLint(info.format) != pixelFormat)
1300 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1301
1302 egl_surface_t* surface;
1303 surface = new egl_window_surface_v2_t(dpy, config, depthFormat,
1304 static_cast<ANativeWindow*>(window));
1305
1306 if (!surface->initCheck()) {
1307 // there was a problem in the ctor, the error
1308 // flag has been set.
1309 delete surface;
1310 surface = 0;
1311 }
1312 return surface;
1313 }
1314
createPixmapSurface(EGLDisplay dpy,EGLConfig config,NativePixmapType pixmap,const EGLint *)1315 static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config,
1316 NativePixmapType pixmap, const EGLint* /*attrib_list*/)
1317 {
1318 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1319 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1320 if (pixmap == 0)
1321 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1322
1323 EGLint surfaceType;
1324 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
1325 return EGL_FALSE;
1326
1327 if (!(surfaceType & EGL_PIXMAP_BIT))
1328 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1329
1330 if (static_cast<egl_native_pixmap_t*>(pixmap)->version !=
1331 sizeof(egl_native_pixmap_t)) {
1332 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE);
1333 }
1334
1335 EGLint configID;
1336 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
1337 return EGL_FALSE;
1338
1339 int32_t depthFormat;
1340 int32_t pixelFormat;
1341 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
1342 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1343 }
1344
1345 if (pixmap->format != pixelFormat)
1346 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1347
1348 egl_surface_t* surface =
1349 new egl_pixmap_surface_t(dpy, config, depthFormat,
1350 static_cast<egl_native_pixmap_t*>(pixmap));
1351
1352 if (!surface->initCheck()) {
1353 // there was a problem in the ctor, the error
1354 // flag has been set.
1355 delete surface;
1356 surface = 0;
1357 }
1358 return surface;
1359 }
1360
createPbufferSurface(EGLDisplay dpy,EGLConfig config,const EGLint * attrib_list)1361 static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config,
1362 const EGLint *attrib_list)
1363 {
1364 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1365 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1366
1367 EGLint surfaceType;
1368 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
1369 return EGL_FALSE;
1370
1371 if (!(surfaceType & EGL_PBUFFER_BIT))
1372 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1373
1374 EGLint configID;
1375 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
1376 return EGL_FALSE;
1377
1378 int32_t depthFormat;
1379 int32_t pixelFormat;
1380 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
1381 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1382 }
1383
1384 int32_t w = 0;
1385 int32_t h = 0;
1386 while (attrib_list[0] != EGL_NONE) {
1387 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1];
1388 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1];
1389 attrib_list+=2;
1390 }
1391
1392 egl_surface_t* surface =
1393 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat);
1394
1395 if (!surface->initCheck()) {
1396 // there was a problem in the ctor, the error
1397 // flag has been set.
1398 delete surface;
1399 surface = 0;
1400 }
1401 return surface;
1402 }
1403
1404 // ----------------------------------------------------------------------------
1405 }; // namespace android
1406 // ----------------------------------------------------------------------------
1407
1408 using namespace android;
1409
1410 // ----------------------------------------------------------------------------
1411 // Initialization
1412 // ----------------------------------------------------------------------------
1413
eglGetDisplay(NativeDisplayType display)1414 EGLDisplay eglGetDisplay(NativeDisplayType display)
1415 {
1416 #ifndef __ANDROID__
1417 // this just needs to be done once
1418 if (gGLKey == -1) {
1419 pthread_mutex_lock(&gInitMutex);
1420 if (gGLKey == -1)
1421 pthread_key_create(&gGLKey, NULL);
1422 pthread_mutex_unlock(&gInitMutex);
1423 }
1424 #endif
1425 if (display == EGL_DEFAULT_DISPLAY) {
1426 EGLDisplay dpy = (EGLDisplay)1;
1427 egl_display_t& d = egl_display_t::get_display(dpy);
1428 d.type = display;
1429 return dpy;
1430 }
1431 return EGL_NO_DISPLAY;
1432 }
1433
eglInitialize(EGLDisplay dpy,EGLint * major,EGLint * minor)1434 EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
1435 {
1436 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1437 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1438
1439 EGLBoolean res = EGL_TRUE;
1440 egl_display_t& d = egl_display_t::get_display(dpy);
1441
1442 if (d.initialized.fetch_add(1, std::memory_order_acquire) == 0) {
1443 // initialize stuff here if needed
1444 //pthread_mutex_lock(&gInitMutex);
1445 //pthread_mutex_unlock(&gInitMutex);
1446 }
1447
1448 if (res == EGL_TRUE) {
1449 if (major != NULL) *major = VERSION_MAJOR;
1450 if (minor != NULL) *minor = VERSION_MINOR;
1451 }
1452 return res;
1453 }
1454
eglTerminate(EGLDisplay dpy)1455 EGLBoolean eglTerminate(EGLDisplay dpy)
1456 {
1457 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1458 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1459
1460 EGLBoolean res = EGL_TRUE;
1461 egl_display_t& d = egl_display_t::get_display(dpy);
1462 if (d.initialized.fetch_sub(1, std::memory_order_release) == 1) {
1463 std::atomic_thread_fence(std::memory_order_acquire);
1464 // TODO: destroy all resources (surfaces, contexts, etc...)
1465 //pthread_mutex_lock(&gInitMutex);
1466 //pthread_mutex_unlock(&gInitMutex);
1467 }
1468 return res;
1469 }
1470
1471 // ----------------------------------------------------------------------------
1472 // configuration
1473 // ----------------------------------------------------------------------------
1474
eglGetConfigs(EGLDisplay dpy,EGLConfig * configs,EGLint config_size,EGLint * num_config)1475 EGLBoolean eglGetConfigs( EGLDisplay dpy,
1476 EGLConfig *configs,
1477 EGLint config_size, EGLint *num_config)
1478 {
1479 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1480 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1481
1482 if (ggl_unlikely(num_config==NULL))
1483 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1484
1485 GLint numConfigs = NELEM(gConfigs);
1486 if (!configs) {
1487 *num_config = numConfigs;
1488 return EGL_TRUE;
1489 }
1490 GLint i;
1491 for (i=0 ; i<numConfigs && i<config_size ; i++) {
1492 *configs++ = (EGLConfig)(uintptr_t)i;
1493 }
1494 *num_config = i;
1495 return EGL_TRUE;
1496 }
1497
eglChooseConfig(EGLDisplay dpy,const EGLint * attrib_list,EGLConfig * configs,EGLint config_size,EGLint * num_config)1498 EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list,
1499 EGLConfig *configs, EGLint config_size,
1500 EGLint *num_config)
1501 {
1502 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1503 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1504
1505 if (ggl_unlikely(num_config==NULL)) {
1506 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1507 }
1508
1509 if (ggl_unlikely(attrib_list==0)) {
1510 /*
1511 * A NULL attrib_list should be treated as though it was an empty
1512 * one (terminated with EGL_NONE) as defined in
1513 * section 3.4.1 "Querying Configurations" in the EGL specification.
1514 */
1515 static const EGLint dummy = EGL_NONE;
1516 attrib_list = &dummy;
1517 }
1518
1519 int numAttributes = 0;
1520 int numConfigs = NELEM(gConfigs);
1521 uint32_t possibleMatch = (1<<numConfigs)-1;
1522 while(possibleMatch && *attrib_list != EGL_NONE) {
1523 numAttributes++;
1524 EGLint attr = *attrib_list++;
1525 EGLint val = *attrib_list++;
1526 for (int i=0 ; possibleMatch && i<numConfigs ; i++) {
1527 if (!(possibleMatch & (1<<i)))
1528 continue;
1529 if (isAttributeMatching(i, attr, val) == 0) {
1530 possibleMatch &= ~(1<<i);
1531 }
1532 }
1533 }
1534
1535 // now, handle the attributes which have a useful default value
1536 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) {
1537 // see if this attribute was specified, if not, apply its
1538 // default value
1539 if (binarySearch<config_pair_t>(
1540 (config_pair_t const*)attrib_list,
1541 0, numAttributes-1,
1542 config_defaults[j].key) < 0)
1543 {
1544 for (int i=0 ; possibleMatch && i<numConfigs ; i++) {
1545 if (!(possibleMatch & (1<<i)))
1546 continue;
1547 if (isAttributeMatching(i,
1548 config_defaults[j].key,
1549 config_defaults[j].value) == 0)
1550 {
1551 possibleMatch &= ~(1<<i);
1552 }
1553 }
1554 }
1555 }
1556
1557 // return the configurations found
1558 int n=0;
1559 if (possibleMatch) {
1560 if (configs) {
1561 for (int i=0 ; config_size && i<numConfigs ; i++) {
1562 if (possibleMatch & (1<<i)) {
1563 *configs++ = (EGLConfig)(uintptr_t)i;
1564 config_size--;
1565 n++;
1566 }
1567 }
1568 } else {
1569 for (int i=0 ; i<numConfigs ; i++) {
1570 if (possibleMatch & (1<<i)) {
1571 n++;
1572 }
1573 }
1574 }
1575 }
1576 *num_config = n;
1577 return EGL_TRUE;
1578 }
1579
eglGetConfigAttrib(EGLDisplay dpy,EGLConfig config,EGLint attribute,EGLint * value)1580 EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
1581 EGLint attribute, EGLint *value)
1582 {
1583 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1584 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1585
1586 return getConfigAttrib(dpy, config, attribute, value);
1587 }
1588
1589 // ----------------------------------------------------------------------------
1590 // surfaces
1591 // ----------------------------------------------------------------------------
1592
eglCreateWindowSurface(EGLDisplay dpy,EGLConfig config,NativeWindowType window,const EGLint * attrib_list)1593 EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config,
1594 NativeWindowType window,
1595 const EGLint *attrib_list)
1596 {
1597 return createWindowSurface(dpy, config, window, attrib_list);
1598 }
1599
eglCreatePixmapSurface(EGLDisplay dpy,EGLConfig config,NativePixmapType pixmap,const EGLint * attrib_list)1600 EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config,
1601 NativePixmapType pixmap,
1602 const EGLint *attrib_list)
1603 {
1604 return createPixmapSurface(dpy, config, pixmap, attrib_list);
1605 }
1606
eglCreatePbufferSurface(EGLDisplay dpy,EGLConfig config,const EGLint * attrib_list)1607 EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config,
1608 const EGLint *attrib_list)
1609 {
1610 return createPbufferSurface(dpy, config, attrib_list);
1611 }
1612
eglDestroySurface(EGLDisplay dpy,EGLSurface eglSurface)1613 EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface)
1614 {
1615 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1616 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1617 if (eglSurface != EGL_NO_SURFACE) {
1618 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) );
1619 if (!surface->isValid())
1620 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1621 if (surface->dpy != dpy)
1622 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1623 if (surface->ctx) {
1624 // defer disconnect/delete until no longer current
1625 surface->zombie = true;
1626 } else {
1627 surface->disconnect();
1628 delete surface;
1629 }
1630 }
1631 return EGL_TRUE;
1632 }
1633
eglQuerySurface(EGLDisplay dpy,EGLSurface eglSurface,EGLint attribute,EGLint * value)1634 EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface,
1635 EGLint attribute, EGLint *value)
1636 {
1637 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1638 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1639 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface);
1640 if (!surface->isValid())
1641 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1642 if (surface->dpy != dpy)
1643 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1644
1645 EGLBoolean ret = EGL_TRUE;
1646 switch (attribute) {
1647 case EGL_CONFIG_ID:
1648 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value);
1649 break;
1650 case EGL_WIDTH:
1651 *value = surface->getWidth();
1652 break;
1653 case EGL_HEIGHT:
1654 *value = surface->getHeight();
1655 break;
1656 case EGL_LARGEST_PBUFFER:
1657 // not modified for a window or pixmap surface
1658 break;
1659 case EGL_TEXTURE_FORMAT:
1660 *value = EGL_NO_TEXTURE;
1661 break;
1662 case EGL_TEXTURE_TARGET:
1663 *value = EGL_NO_TEXTURE;
1664 break;
1665 case EGL_MIPMAP_TEXTURE:
1666 *value = EGL_FALSE;
1667 break;
1668 case EGL_MIPMAP_LEVEL:
1669 *value = 0;
1670 break;
1671 case EGL_RENDER_BUFFER:
1672 // TODO: return the real RENDER_BUFFER here
1673 *value = EGL_BACK_BUFFER;
1674 break;
1675 case EGL_HORIZONTAL_RESOLUTION:
1676 // pixel/mm * EGL_DISPLAY_SCALING
1677 *value = surface->getHorizontalResolution();
1678 break;
1679 case EGL_VERTICAL_RESOLUTION:
1680 // pixel/mm * EGL_DISPLAY_SCALING
1681 *value = surface->getVerticalResolution();
1682 break;
1683 case EGL_PIXEL_ASPECT_RATIO: {
1684 // w/h * EGL_DISPLAY_SCALING
1685 int wr = surface->getHorizontalResolution();
1686 int hr = surface->getVerticalResolution();
1687 *value = (wr * EGL_DISPLAY_SCALING) / hr;
1688 } break;
1689 case EGL_SWAP_BEHAVIOR:
1690 *value = surface->getSwapBehavior();
1691 break;
1692 default:
1693 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
1694 }
1695 return ret;
1696 }
1697
eglCreateContext(EGLDisplay dpy,EGLConfig config,EGLContext,const EGLint *)1698 EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config,
1699 EGLContext /*share_list*/, const EGLint* /*attrib_list*/)
1700 {
1701 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1702 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1703
1704 ogles_context_t* gl = ogles_init(sizeof(egl_context_t));
1705 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT);
1706
1707 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base);
1708 c->flags = egl_context_t::NEVER_CURRENT;
1709 c->dpy = dpy;
1710 c->config = config;
1711 c->read = 0;
1712 c->draw = 0;
1713 return (EGLContext)gl;
1714 }
1715
eglDestroyContext(EGLDisplay dpy,EGLContext ctx)1716 EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
1717 {
1718 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1719 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1720 egl_context_t* c = egl_context_t::context(ctx);
1721 if (c->flags & egl_context_t::IS_CURRENT)
1722 setGlThreadSpecific(0);
1723 ogles_uninit((ogles_context_t*)ctx);
1724 return EGL_TRUE;
1725 }
1726
eglMakeCurrent(EGLDisplay dpy,EGLSurface draw,EGLSurface read,EGLContext ctx)1727 EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw,
1728 EGLSurface read, EGLContext ctx)
1729 {
1730 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1731 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1732 if (draw) {
1733 egl_surface_t* s = (egl_surface_t*)draw;
1734 if (!s->isValid())
1735 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1736 if (s->dpy != dpy)
1737 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1738 // TODO: check that draw is compatible with the context
1739 }
1740 if (read && read!=draw) {
1741 egl_surface_t* s = (egl_surface_t*)read;
1742 if (!s->isValid())
1743 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1744 if (s->dpy != dpy)
1745 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1746 // TODO: check that read is compatible with the context
1747 }
1748
1749 EGLContext current_ctx = EGL_NO_CONTEXT;
1750
1751 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT))
1752 return setError(EGL_BAD_MATCH, EGL_FALSE);
1753
1754 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT))
1755 return setError(EGL_BAD_MATCH, EGL_FALSE);
1756
1757 if (ctx == EGL_NO_CONTEXT) {
1758 // if we're detaching, we need the current context
1759 current_ctx = (EGLContext)getGlThreadSpecific();
1760 } else {
1761 egl_context_t* c = egl_context_t::context(ctx);
1762 egl_surface_t* d = (egl_surface_t*)draw;
1763 egl_surface_t* r = (egl_surface_t*)read;
1764 if ((d && d->ctx && d->ctx != ctx) ||
1765 (r && r->ctx && r->ctx != ctx)) {
1766 // one of the surface is bound to a context in another thread
1767 return setError(EGL_BAD_ACCESS, EGL_FALSE);
1768 }
1769 }
1770
1771 ogles_context_t* gl = (ogles_context_t*)ctx;
1772 if (makeCurrent(gl) == 0) {
1773 if (ctx) {
1774 egl_context_t* c = egl_context_t::context(ctx);
1775 egl_surface_t* d = (egl_surface_t*)draw;
1776 egl_surface_t* r = (egl_surface_t*)read;
1777
1778 if (c->draw) {
1779 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw);
1780 s->disconnect();
1781 s->ctx = EGL_NO_CONTEXT;
1782 if (s->zombie)
1783 delete s;
1784 }
1785 if (c->read) {
1786 // FIXME: unlock/disconnect the read surface too
1787 }
1788
1789 c->draw = draw;
1790 c->read = read;
1791
1792 if (c->flags & egl_context_t::NEVER_CURRENT) {
1793 c->flags &= ~egl_context_t::NEVER_CURRENT;
1794 GLint w = 0;
1795 GLint h = 0;
1796 if (draw) {
1797 w = d->getWidth();
1798 h = d->getHeight();
1799 }
1800 ogles_surfaceport(gl, 0, 0);
1801 ogles_viewport(gl, 0, 0, w, h);
1802 ogles_scissor(gl, 0, 0, w, h);
1803 }
1804 if (d) {
1805 if (d->connect() == EGL_FALSE) {
1806 return EGL_FALSE;
1807 }
1808 d->ctx = ctx;
1809 d->bindDrawSurface(gl);
1810 }
1811 if (r) {
1812 // FIXME: lock/connect the read surface too
1813 r->ctx = ctx;
1814 r->bindReadSurface(gl);
1815 }
1816 } else {
1817 // if surfaces were bound to the context bound to this thread
1818 // mark then as unbound.
1819 if (current_ctx) {
1820 egl_context_t* c = egl_context_t::context(current_ctx);
1821 egl_surface_t* d = (egl_surface_t*)c->draw;
1822 egl_surface_t* r = (egl_surface_t*)c->read;
1823 if (d) {
1824 c->draw = 0;
1825 d->disconnect();
1826 d->ctx = EGL_NO_CONTEXT;
1827 if (d->zombie)
1828 delete d;
1829 }
1830 if (r) {
1831 c->read = 0;
1832 r->ctx = EGL_NO_CONTEXT;
1833 // FIXME: unlock/disconnect the read surface too
1834 }
1835 }
1836 }
1837 return EGL_TRUE;
1838 }
1839 return setError(EGL_BAD_ACCESS, EGL_FALSE);
1840 }
1841
eglGetCurrentContext(void)1842 EGLContext eglGetCurrentContext(void)
1843 {
1844 // eglGetCurrentContext returns the current EGL rendering context,
1845 // as specified by eglMakeCurrent. If no context is current,
1846 // EGL_NO_CONTEXT is returned.
1847 return (EGLContext)getGlThreadSpecific();
1848 }
1849
eglGetCurrentSurface(EGLint readdraw)1850 EGLSurface eglGetCurrentSurface(EGLint readdraw)
1851 {
1852 // eglGetCurrentSurface returns the read or draw surface attached
1853 // to the current EGL rendering context, as specified by eglMakeCurrent.
1854 // If no context is current, EGL_NO_SURFACE is returned.
1855 EGLContext ctx = (EGLContext)getGlThreadSpecific();
1856 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE;
1857 egl_context_t* c = egl_context_t::context(ctx);
1858 if (readdraw == EGL_READ) {
1859 return c->read;
1860 } else if (readdraw == EGL_DRAW) {
1861 return c->draw;
1862 }
1863 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
1864 }
1865
eglGetCurrentDisplay(void)1866 EGLDisplay eglGetCurrentDisplay(void)
1867 {
1868 // eglGetCurrentDisplay returns the current EGL display connection
1869 // for the current EGL rendering context, as specified by eglMakeCurrent.
1870 // If no context is current, EGL_NO_DISPLAY is returned.
1871 EGLContext ctx = (EGLContext)getGlThreadSpecific();
1872 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY;
1873 egl_context_t* c = egl_context_t::context(ctx);
1874 return c->dpy;
1875 }
1876
eglQueryContext(EGLDisplay dpy,EGLContext ctx,EGLint attribute,EGLint * value)1877 EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx,
1878 EGLint attribute, EGLint *value)
1879 {
1880 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1881 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1882 egl_context_t* c = egl_context_t::context(ctx);
1883 switch (attribute) {
1884 case EGL_CONFIG_ID:
1885 // Returns the ID of the EGL frame buffer configuration with
1886 // respect to which the context was created
1887 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value);
1888 }
1889 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
1890 }
1891
eglWaitGL(void)1892 EGLBoolean eglWaitGL(void)
1893 {
1894 return EGL_TRUE;
1895 }
1896
eglWaitNative(EGLint)1897 EGLBoolean eglWaitNative(EGLint /*engine*/)
1898 {
1899 return EGL_TRUE;
1900 }
1901
eglSwapBuffers(EGLDisplay dpy,EGLSurface draw)1902 EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
1903 {
1904 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1905 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1906
1907 egl_surface_t* d = static_cast<egl_surface_t*>(draw);
1908 if (!d->isValid())
1909 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1910 if (d->dpy != dpy)
1911 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1912
1913 // post the surface
1914 d->swapBuffers();
1915
1916 // if it's bound to a context, update the buffer
1917 if (d->ctx != EGL_NO_CONTEXT) {
1918 d->bindDrawSurface((ogles_context_t*)d->ctx);
1919 // if this surface is also the read surface of the context
1920 // it is bound to, make sure to update the read buffer as well.
1921 // The EGL spec is a little unclear about this.
1922 egl_context_t* c = egl_context_t::context(d->ctx);
1923 if (c->read == draw) {
1924 d->bindReadSurface((ogles_context_t*)d->ctx);
1925 }
1926 }
1927
1928 return EGL_TRUE;
1929 }
1930
eglCopyBuffers(EGLDisplay dpy,EGLSurface,NativePixmapType)1931 EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface /*surface*/,
1932 NativePixmapType /*target*/)
1933 {
1934 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1935 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1936 // TODO: eglCopyBuffers()
1937 return EGL_FALSE;
1938 }
1939
eglGetError(void)1940 EGLint eglGetError(void)
1941 {
1942 return getError();
1943 }
1944
eglQueryString(EGLDisplay dpy,EGLint name)1945 const char* eglQueryString(EGLDisplay dpy, EGLint name)
1946 {
1947 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1948 return setError(EGL_BAD_DISPLAY, (const char*)0);
1949
1950 switch (name) {
1951 case EGL_VENDOR:
1952 return gVendorString;
1953 case EGL_VERSION:
1954 return gVersionString;
1955 case EGL_EXTENSIONS:
1956 return gExtensionsString;
1957 case EGL_CLIENT_APIS:
1958 return gClientApiString;
1959 }
1960 return setError(EGL_BAD_PARAMETER, (const char *)0);
1961 }
1962
1963 // ----------------------------------------------------------------------------
1964 // EGL 1.1
1965 // ----------------------------------------------------------------------------
1966
eglSurfaceAttrib(EGLDisplay dpy,EGLSurface,EGLint,EGLint)1967 EGLBoolean eglSurfaceAttrib(
1968 EGLDisplay dpy, EGLSurface /*surface*/, EGLint /*attribute*/, EGLint /*value*/)
1969 {
1970 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1971 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1972 // TODO: eglSurfaceAttrib()
1973 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1974 }
1975
eglBindTexImage(EGLDisplay dpy,EGLSurface,EGLint)1976 EGLBoolean eglBindTexImage(
1977 EGLDisplay dpy, EGLSurface /*surface*/, EGLint /*buffer*/)
1978 {
1979 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1980 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1981 // TODO: eglBindTexImage()
1982 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1983 }
1984
eglReleaseTexImage(EGLDisplay dpy,EGLSurface,EGLint)1985 EGLBoolean eglReleaseTexImage(
1986 EGLDisplay dpy, EGLSurface /*surface*/, EGLint /*buffer*/)
1987 {
1988 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1989 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1990 // TODO: eglReleaseTexImage()
1991 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1992 }
1993
eglSwapInterval(EGLDisplay dpy,EGLint)1994 EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint /*interval*/)
1995 {
1996 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1997 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1998 // TODO: eglSwapInterval()
1999 return EGL_TRUE;
2000 }
2001
2002 // ----------------------------------------------------------------------------
2003 // EGL 1.2
2004 // ----------------------------------------------------------------------------
2005
eglBindAPI(EGLenum api)2006 EGLBoolean eglBindAPI(EGLenum api)
2007 {
2008 if (api != EGL_OPENGL_ES_API)
2009 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2010 return EGL_TRUE;
2011 }
2012
eglQueryAPI(void)2013 EGLenum eglQueryAPI(void)
2014 {
2015 return EGL_OPENGL_ES_API;
2016 }
2017
eglWaitClient(void)2018 EGLBoolean eglWaitClient(void)
2019 {
2020 glFinish();
2021 return EGL_TRUE;
2022 }
2023
eglReleaseThread(void)2024 EGLBoolean eglReleaseThread(void)
2025 {
2026 // TODO: eglReleaseThread()
2027 return EGL_TRUE;
2028 }
2029
eglCreatePbufferFromClientBuffer(EGLDisplay dpy,EGLenum,EGLClientBuffer,EGLConfig,const EGLint *)2030 EGLSurface eglCreatePbufferFromClientBuffer(
2031 EGLDisplay dpy, EGLenum /*buftype*/, EGLClientBuffer /*buffer*/,
2032 EGLConfig /*config*/, const EGLint* /*attrib_list*/)
2033 {
2034 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
2035 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
2036 // TODO: eglCreatePbufferFromClientBuffer()
2037 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
2038 }
2039
2040 // ----------------------------------------------------------------------------
2041 // EGL_EGLEXT_VERSION 3
2042 // ----------------------------------------------------------------------------
2043
eglGetProcAddress(const char * procname)2044 void (*eglGetProcAddress (const char *procname))()
2045 {
2046 extention_map_t const * const map = gExtentionMap;
2047 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) {
2048 if (!strcmp(procname, map[i].name)) {
2049 return map[i].address;
2050 }
2051 }
2052 return NULL;
2053 }
2054
eglLockSurfaceKHR(EGLDisplay,EGLSurface,const EGLint *)2055 EGLBoolean eglLockSurfaceKHR(EGLDisplay /*dpy*/, EGLSurface /*surface*/,
2056 const EGLint* /*attrib_list*/)
2057 {
2058 EGLBoolean result = EGL_FALSE;
2059 return result;
2060 }
2061
eglUnlockSurfaceKHR(EGLDisplay,EGLSurface)2062 EGLBoolean eglUnlockSurfaceKHR(EGLDisplay /*dpy*/, EGLSurface /*surface*/)
2063 {
2064 EGLBoolean result = EGL_FALSE;
2065 return result;
2066 }
2067
eglCreateImageKHR(EGLDisplay dpy,EGLContext ctx,EGLenum target,EGLClientBuffer buffer,const EGLint *)2068 EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
2069 EGLClientBuffer buffer, const EGLint* /*attrib_list*/)
2070 {
2071 if (egl_display_t::is_valid(dpy) == EGL_FALSE) {
2072 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR);
2073 }
2074 if (ctx != EGL_NO_CONTEXT) {
2075 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR);
2076 }
2077 if (target != EGL_NATIVE_BUFFER_ANDROID) {
2078 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
2079 }
2080
2081 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)buffer;
2082
2083 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC)
2084 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
2085
2086 if (native_buffer->common.version != sizeof(ANativeWindowBuffer))
2087 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
2088
2089 switch (native_buffer->format) {
2090 case HAL_PIXEL_FORMAT_RGBA_8888:
2091 case HAL_PIXEL_FORMAT_RGBX_8888:
2092 case HAL_PIXEL_FORMAT_RGB_888:
2093 case HAL_PIXEL_FORMAT_RGB_565:
2094 case HAL_PIXEL_FORMAT_BGRA_8888:
2095 break;
2096 default:
2097 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
2098 }
2099
2100 native_buffer->common.incRef(&native_buffer->common);
2101 return (EGLImageKHR)native_buffer;
2102 }
2103
eglDestroyImageKHR(EGLDisplay dpy,EGLImageKHR img)2104 EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img)
2105 {
2106 if (egl_display_t::is_valid(dpy) == EGL_FALSE) {
2107 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
2108 }
2109
2110 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)img;
2111
2112 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC)
2113 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2114
2115 if (native_buffer->common.version != sizeof(ANativeWindowBuffer))
2116 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2117
2118 native_buffer->common.decRef(&native_buffer->common);
2119
2120 return EGL_TRUE;
2121 }
2122
2123 // ----------------------------------------------------------------------------
2124 // EGL_KHR_fence_sync
2125 // ----------------------------------------------------------------------------
2126
2127 #define FENCE_SYNC_HANDLE ((EGLSyncKHR)0xFE4CE)
2128
eglCreateSyncKHR(EGLDisplay dpy,EGLenum type,const EGLint * attrib_list)2129 EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type,
2130 const EGLint *attrib_list)
2131 {
2132 if (egl_display_t::is_valid(dpy) == EGL_FALSE) {
2133 return setError(EGL_BAD_DISPLAY, EGL_NO_SYNC_KHR);
2134 }
2135
2136 if (type != EGL_SYNC_FENCE_KHR ||
2137 (attrib_list != NULL && attrib_list[0] != EGL_NONE)) {
2138 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SYNC_KHR);
2139 }
2140
2141 if (eglGetCurrentContext() == EGL_NO_CONTEXT) {
2142 return setError(EGL_BAD_MATCH, EGL_NO_SYNC_KHR);
2143 }
2144
2145 // AGL is synchronous; nothing to do here.
2146
2147 return FENCE_SYNC_HANDLE;
2148 }
2149
eglDestroySyncKHR(EGLDisplay,EGLSyncKHR sync)2150 EGLBoolean eglDestroySyncKHR(EGLDisplay /*dpy*/, EGLSyncKHR sync)
2151 {
2152 if (sync != FENCE_SYNC_HANDLE) {
2153 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2154 }
2155
2156 return EGL_TRUE;
2157 }
2158
eglClientWaitSyncKHR(EGLDisplay,EGLSyncKHR sync,EGLint,EGLTimeKHR)2159 EGLint eglClientWaitSyncKHR(EGLDisplay /*dpy*/, EGLSyncKHR sync, EGLint /*flags*/,
2160 EGLTimeKHR /*timeout*/)
2161 {
2162 if (sync != FENCE_SYNC_HANDLE) {
2163 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2164 }
2165
2166 return EGL_CONDITION_SATISFIED_KHR;
2167 }
2168
eglGetSyncAttribKHR(EGLDisplay,EGLSyncKHR sync,EGLint attribute,EGLint * value)2169 EGLBoolean eglGetSyncAttribKHR(EGLDisplay /*dpy*/, EGLSyncKHR sync,
2170 EGLint attribute, EGLint *value)
2171 {
2172 if (sync != FENCE_SYNC_HANDLE) {
2173 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2174 }
2175
2176 switch (attribute) {
2177 case EGL_SYNC_TYPE_KHR:
2178 *value = EGL_SYNC_FENCE_KHR;
2179 return EGL_TRUE;
2180 case EGL_SYNC_STATUS_KHR:
2181 *value = EGL_SIGNALED_KHR;
2182 return EGL_TRUE;
2183 case EGL_SYNC_CONDITION_KHR:
2184 *value = EGL_SYNC_PRIOR_COMMANDS_COMPLETE_KHR;
2185 return EGL_TRUE;
2186 default:
2187 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
2188 }
2189 }
2190
2191 // ----------------------------------------------------------------------------
2192 // ANDROID extensions
2193 // ----------------------------------------------------------------------------
2194
eglSetSwapRectangleANDROID(EGLDisplay dpy,EGLSurface draw,EGLint left,EGLint top,EGLint width,EGLint height)2195 EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw,
2196 EGLint left, EGLint top, EGLint width, EGLint height)
2197 {
2198 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
2199 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
2200
2201 egl_surface_t* d = static_cast<egl_surface_t*>(draw);
2202 if (!d->isValid())
2203 return setError(EGL_BAD_SURFACE, EGL_FALSE);
2204 if (d->dpy != dpy)
2205 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
2206
2207 // post the surface
2208 d->setSwapRectangle(left, top, width, height);
2209
2210 return EGL_TRUE;
2211 }
2212