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 typedef struct egl_native_pixmap_t
61 {
62 int32_t version; /* must be 32 */
63 int32_t width;
64 int32_t height;
65 int32_t stride;
66 uint8_t* data;
67 uint8_t format;
68 uint8_t rfu[3];
69 union {
70 uint32_t compressedFormat;
71 int32_t vstride;
72 };
73 int32_t reserved;
74 } egl_native_pixmap_t;
75
76
77 // ----------------------------------------------------------------------------
78 namespace android {
79
80 // ----------------------------------------------------------------------------
81
82 const unsigned int NUM_DISPLAYS = 1;
83
84 #ifndef __ANDROID__
85 static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER;
86 #endif
87 static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER;
88 static pthread_key_t gEGLErrorKey = -1;
89 #ifndef __ANDROID__
90 namespace gl {
91 pthread_key_t gGLKey = -1;
92 }; // namespace gl
93 #endif
94
95 template<typename T>
setError(GLint error,T returnValue)96 static T setError(GLint error, T returnValue) {
97 if (ggl_unlikely(gEGLErrorKey == -1)) {
98 pthread_mutex_lock(&gErrorKeyMutex);
99 if (gEGLErrorKey == -1)
100 pthread_key_create(&gEGLErrorKey, NULL);
101 pthread_mutex_unlock(&gErrorKeyMutex);
102 }
103 pthread_setspecific(gEGLErrorKey, (void*)(uintptr_t)error);
104 return returnValue;
105 }
106
getError()107 static GLint getError() {
108 if (ggl_unlikely(gEGLErrorKey == -1))
109 return EGL_SUCCESS;
110 GLint error = (GLint)(uintptr_t)pthread_getspecific(gEGLErrorKey);
111 if (error == 0) {
112 // The TLS key has been created by another thread, but the value for
113 // this thread has not been initialized.
114 return EGL_SUCCESS;
115 }
116 pthread_setspecific(gEGLErrorKey, (void*)(uintptr_t)EGL_SUCCESS);
117 return error;
118 }
119
120 // ----------------------------------------------------------------------------
121
122 struct egl_display_t
123 {
egl_display_tandroid::egl_display_t124 egl_display_t() : type(0), initialized(0) { }
125
126 static egl_display_t& get_display(EGLDisplay dpy);
127
is_validandroid::egl_display_t128 static EGLBoolean is_valid(EGLDisplay dpy) {
129 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE;
130 }
131
132 NativeDisplayType type;
133 std::atomic_size_t initialized;
134 };
135
136 static egl_display_t gDisplays[NUM_DISPLAYS];
137
get_display(EGLDisplay dpy)138 egl_display_t& egl_display_t::get_display(EGLDisplay dpy) {
139 return gDisplays[uintptr_t(dpy)-1U];
140 }
141
142 struct egl_context_t {
143 enum {
144 IS_CURRENT = 0x00010000,
145 NEVER_CURRENT = 0x00020000
146 };
147 uint32_t flags;
148 EGLDisplay dpy;
149 EGLConfig config;
150 EGLSurface read;
151 EGLSurface draw;
152
contextandroid::egl_context_t153 static inline egl_context_t* context(EGLContext ctx) {
154 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx);
155 return static_cast<egl_context_t*>(gl->rasterizer.base);
156 }
157 };
158
159 // ----------------------------------------------------------------------------
160
161 struct egl_surface_t
162 {
163 enum {
164 PAGE_FLIP = 0x00000001,
165 MAGIC = 0x31415265
166 };
167
168 uint32_t magic;
169 EGLDisplay dpy;
170 EGLConfig config;
171 EGLContext ctx;
172 bool zombie;
173
174 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat);
175 virtual ~egl_surface_t();
176 bool isValid() const;
177 virtual bool initCheck() const = 0;
178
179 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0;
180 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0;
connectandroid::egl_surface_t181 virtual EGLBoolean connect() { return EGL_TRUE; }
disconnectandroid::egl_surface_t182 virtual void disconnect() {}
183 virtual EGLint getWidth() const = 0;
184 virtual EGLint getHeight() const = 0;
185
186 virtual EGLint getHorizontalResolution() const;
187 virtual EGLint getVerticalResolution() const;
188 virtual EGLint getRefreshRate() const;
189 virtual EGLint getSwapBehavior() const;
190 virtual EGLBoolean swapBuffers();
191 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h);
192 protected:
193 GGLSurface depth;
194 };
195
egl_surface_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat)196 egl_surface_t::egl_surface_t(EGLDisplay dpy,
197 EGLConfig config,
198 int32_t depthFormat)
199 : magic(MAGIC), dpy(dpy), config(config), ctx(0), zombie(false)
200 {
201 depth.version = sizeof(GGLSurface);
202 depth.data = 0;
203 depth.format = depthFormat;
204 }
~egl_surface_t()205 egl_surface_t::~egl_surface_t()
206 {
207 magic = 0;
208 free(depth.data);
209 }
isValid() const210 bool egl_surface_t::isValid() const {
211 ALOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this);
212 return magic == MAGIC;
213 }
214
swapBuffers()215 EGLBoolean egl_surface_t::swapBuffers() {
216 return EGL_FALSE;
217 }
getHorizontalResolution() const218 EGLint egl_surface_t::getHorizontalResolution() const {
219 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
220 }
getVerticalResolution() const221 EGLint egl_surface_t::getVerticalResolution() const {
222 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
223 }
getRefreshRate() const224 EGLint egl_surface_t::getRefreshRate() const {
225 return (60 * EGL_DISPLAY_SCALING);
226 }
getSwapBehavior() const227 EGLint egl_surface_t::getSwapBehavior() const {
228 return EGL_BUFFER_PRESERVED;
229 }
setSwapRectangle(EGLint,EGLint,EGLint,EGLint)230 EGLBoolean egl_surface_t::setSwapRectangle(
231 EGLint /*l*/, EGLint /*t*/, EGLint /*w*/, EGLint /*h*/)
232 {
233 return EGL_FALSE;
234 }
235
236 // ----------------------------------------------------------------------------
237
238 struct egl_window_surface_v2_t : public egl_surface_t
239 {
240 egl_window_surface_v2_t(
241 EGLDisplay dpy, EGLConfig config,
242 int32_t depthFormat,
243 ANativeWindow* window);
244
245 ~egl_window_surface_v2_t();
246
initCheckandroid::egl_window_surface_v2_t247 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails
248 virtual EGLBoolean swapBuffers();
249 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
250 virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
251 virtual EGLBoolean connect();
252 virtual void disconnect();
getWidthandroid::egl_window_surface_v2_t253 virtual EGLint getWidth() const { return width; }
getHeightandroid::egl_window_surface_v2_t254 virtual EGLint getHeight() const { return height; }
255 virtual EGLint getHorizontalResolution() const;
256 virtual EGLint getVerticalResolution() const;
257 virtual EGLint getRefreshRate() const;
258 virtual EGLint getSwapBehavior() const;
259 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h);
260
261 private:
262 status_t lock(ANativeWindowBuffer* buf, int usage, void** vaddr);
263 status_t unlock(ANativeWindowBuffer* buf);
264 ANativeWindow* nativeWindow;
265 ANativeWindowBuffer* buffer;
266 ANativeWindowBuffer* previousBuffer;
267 int width;
268 int height;
269 void* bits;
270 GGLFormat const* pixelFormatTable;
271
272 struct Rect {
Rectandroid::egl_window_surface_v2_t::Rect273 inline Rect() { };
Rectandroid::egl_window_surface_v2_t::Rect274 inline Rect(int32_t w, int32_t h)
275 : left(0), top(0), right(w), bottom(h) { }
Rectandroid::egl_window_surface_v2_t::Rect276 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b)
277 : left(l), top(t), right(r), bottom(b) { }
andSelfandroid::egl_window_surface_v2_t::Rect278 Rect& andSelf(const Rect& r) {
279 left = max(left, r.left);
280 top = max(top, r.top);
281 right = min(right, r.right);
282 bottom = min(bottom, r.bottom);
283 return *this;
284 }
isEmptyandroid::egl_window_surface_v2_t::Rect285 bool isEmpty() const {
286 return (left>=right || top>=bottom);
287 }
dumpandroid::egl_window_surface_v2_t::Rect288 void dump(char const* what) {
289 ALOGD("%s { %5d, %5d, w=%5d, h=%5d }",
290 what, left, top, right-left, bottom-top);
291 }
292
293 int32_t left;
294 int32_t top;
295 int32_t right;
296 int32_t bottom;
297 };
298
299 struct Region {
Regionandroid::egl_window_surface_v2_t::Region300 inline Region() : count(0) { }
301 typedef Rect const* const_iterator;
beginandroid::egl_window_surface_v2_t::Region302 const_iterator begin() const { return storage; }
endandroid::egl_window_surface_v2_t::Region303 const_iterator end() const { return storage+count; }
subtractandroid::egl_window_surface_v2_t::Region304 static Region subtract(const Rect& lhs, const Rect& rhs) {
305 Region reg;
306 Rect* storage = reg.storage;
307 if (!lhs.isEmpty()) {
308 if (lhs.top < rhs.top) { // top rect
309 storage->left = lhs.left;
310 storage->top = lhs.top;
311 storage->right = lhs.right;
312 storage->bottom = rhs.top;
313 storage++;
314 }
315 const int32_t top = max(lhs.top, rhs.top);
316 const int32_t bot = min(lhs.bottom, rhs.bottom);
317 if (top < bot) {
318 if (lhs.left < rhs.left) { // left-side rect
319 storage->left = lhs.left;
320 storage->top = top;
321 storage->right = rhs.left;
322 storage->bottom = bot;
323 storage++;
324 }
325 if (lhs.right > rhs.right) { // right-side rect
326 storage->left = rhs.right;
327 storage->top = top;
328 storage->right = lhs.right;
329 storage->bottom = bot;
330 storage++;
331 }
332 }
333 if (lhs.bottom > rhs.bottom) { // bottom rect
334 storage->left = lhs.left;
335 storage->top = rhs.bottom;
336 storage->right = lhs.right;
337 storage->bottom = lhs.bottom;
338 storage++;
339 }
340 reg.count = storage - reg.storage;
341 }
342 return reg;
343 }
isEmptyandroid::egl_window_surface_v2_t::Region344 bool isEmpty() const {
345 return count<=0;
346 }
347 private:
348 Rect storage[4];
349 ssize_t count;
350 };
351
352 void copyBlt(
353 ANativeWindowBuffer* dst, void* dst_vaddr,
354 ANativeWindowBuffer* src, void const* src_vaddr,
355 const Region& clip);
356
357 Rect dirtyRegion;
358 Rect oldDirtyRegion;
359 };
360
egl_window_surface_v2_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat,ANativeWindow * window)361 egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy,
362 EGLConfig config,
363 int32_t depthFormat,
364 ANativeWindow* window)
365 : egl_surface_t(dpy, config, depthFormat),
366 nativeWindow(window), buffer(0), previousBuffer(0), bits(NULL)
367 {
368
369 pixelFormatTable = gglGetPixelFormatTable();
370
371 // keep a reference on the window
372 nativeWindow->common.incRef(&nativeWindow->common);
373 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width);
374 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height);
375 }
376
~egl_window_surface_v2_t()377 egl_window_surface_v2_t::~egl_window_surface_v2_t() {
378 if (buffer) {
379 buffer->common.decRef(&buffer->common);
380 }
381 if (previousBuffer) {
382 previousBuffer->common.decRef(&previousBuffer->common);
383 }
384 nativeWindow->common.decRef(&nativeWindow->common);
385 }
386
connect()387 EGLBoolean egl_window_surface_v2_t::connect()
388 {
389 // we're intending to do software rendering
390 native_window_set_usage(nativeWindow,
391 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
392
393 // dequeue a buffer
394 int fenceFd = -1;
395 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer,
396 &fenceFd) != NO_ERROR) {
397 return setError(EGL_BAD_ALLOC, EGL_FALSE);
398 }
399
400 // wait for the buffer
401 sp<Fence> fence(new Fence(fenceFd));
402 if (fence->wait(Fence::TIMEOUT_NEVER) != NO_ERROR) {
403 nativeWindow->cancelBuffer(nativeWindow, buffer, fenceFd);
404 return setError(EGL_BAD_ALLOC, EGL_FALSE);
405 }
406
407 // allocate a corresponding depth-buffer
408 width = buffer->width;
409 height = buffer->height;
410 if (depth.format) {
411 depth.width = width;
412 depth.height = height;
413 depth.stride = depth.width; // use the width here
414 uint64_t allocSize = static_cast<uint64_t>(depth.stride) *
415 static_cast<uint64_t>(depth.height) * 2;
416 if (depth.stride < 0 || depth.height > INT_MAX ||
417 allocSize > UINT32_MAX) {
418 return setError(EGL_BAD_ALLOC, EGL_FALSE);
419 }
420 depth.data = (GGLubyte*)malloc(allocSize);
421 if (depth.data == 0) {
422 return setError(EGL_BAD_ALLOC, EGL_FALSE);
423 }
424 }
425
426 // keep a reference on the buffer
427 buffer->common.incRef(&buffer->common);
428
429 // pin the buffer down
430 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN |
431 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) {
432 ALOGE("connect() failed to lock buffer %p (%ux%u)",
433 buffer, buffer->width, buffer->height);
434 return setError(EGL_BAD_ACCESS, EGL_FALSE);
435 // FIXME: we should make sure we're not accessing the buffer anymore
436 }
437 return EGL_TRUE;
438 }
439
disconnect()440 void egl_window_surface_v2_t::disconnect()
441 {
442 if (buffer && bits) {
443 bits = NULL;
444 unlock(buffer);
445 }
446 if (buffer) {
447 nativeWindow->cancelBuffer(nativeWindow, buffer, -1);
448 buffer->common.decRef(&buffer->common);
449 buffer = 0;
450 }
451 if (previousBuffer) {
452 previousBuffer->common.decRef(&previousBuffer->common);
453 previousBuffer = 0;
454 }
455 }
456
lock(ANativeWindowBuffer * buf,int usage,void ** vaddr)457 status_t egl_window_surface_v2_t::lock(
458 ANativeWindowBuffer* buf, int usage, void** vaddr)
459 {
460 auto& mapper = GraphicBufferMapper::get();
461 return mapper.lock(buf->handle, usage,
462 android::Rect(buf->width, buf->height), vaddr);
463 }
464
unlock(ANativeWindowBuffer * buf)465 status_t egl_window_surface_v2_t::unlock(ANativeWindowBuffer* buf)
466 {
467 if (!buf) return BAD_VALUE;
468 auto& mapper = GraphicBufferMapper::get();
469 return mapper.unlock(buf->handle);
470 }
471
copyBlt(ANativeWindowBuffer * dst,void * dst_vaddr,ANativeWindowBuffer * src,void const * src_vaddr,const Region & clip)472 void egl_window_surface_v2_t::copyBlt(
473 ANativeWindowBuffer* dst, void* dst_vaddr,
474 ANativeWindowBuffer* src, void const* src_vaddr,
475 const Region& clip)
476 {
477 // NOTE: dst and src must be the same format
478
479 Region::const_iterator cur = clip.begin();
480 Region::const_iterator end = clip.end();
481
482 const size_t bpp = pixelFormatTable[src->format].size;
483 const size_t dbpr = dst->stride * bpp;
484 const size_t sbpr = src->stride * bpp;
485
486 uint8_t const * const src_bits = (uint8_t const *)src_vaddr;
487 uint8_t * const dst_bits = (uint8_t *)dst_vaddr;
488
489 while (cur != end) {
490 const Rect& r(*cur++);
491 ssize_t w = r.right - r.left;
492 ssize_t h = r.bottom - r.top;
493 if (w <= 0 || h<=0) continue;
494 size_t size = w * bpp;
495 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp;
496 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp;
497 if (dbpr==sbpr && size==sbpr) {
498 size *= h;
499 h = 1;
500 }
501 do {
502 memcpy(d, s, size);
503 d += dbpr;
504 s += sbpr;
505 } while (--h > 0);
506 }
507 }
508
swapBuffers()509 EGLBoolean egl_window_surface_v2_t::swapBuffers()
510 {
511 if (!buffer) {
512 return setError(EGL_BAD_ACCESS, EGL_FALSE);
513 }
514
515 /*
516 * Handle eglSetSwapRectangleANDROID()
517 * We copyback from the front buffer
518 */
519 if (!dirtyRegion.isEmpty()) {
520 dirtyRegion.andSelf(Rect(buffer->width, buffer->height));
521 if (previousBuffer) {
522 // This was const Region copyBack, but that causes an
523 // internal compile error on simulator builds
524 /*const*/ Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion));
525 if (!copyBack.isEmpty()) {
526 void* prevBits;
527 if (lock(previousBuffer,
528 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) {
529 // copy from previousBuffer to buffer
530 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack);
531 unlock(previousBuffer);
532 }
533 }
534 }
535 oldDirtyRegion = dirtyRegion;
536 }
537
538 if (previousBuffer) {
539 previousBuffer->common.decRef(&previousBuffer->common);
540 previousBuffer = 0;
541 }
542
543 unlock(buffer);
544 previousBuffer = buffer;
545 nativeWindow->queueBuffer(nativeWindow, buffer, -1);
546 buffer = 0;
547
548 // dequeue a new buffer
549 int fenceFd = -1;
550 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer, &fenceFd) == NO_ERROR) {
551 sp<Fence> fence(new Fence(fenceFd));
552 if (fence->wait(Fence::TIMEOUT_NEVER)) {
553 nativeWindow->cancelBuffer(nativeWindow, buffer, fenceFd);
554 return setError(EGL_BAD_ALLOC, EGL_FALSE);
555 }
556
557 // reallocate the depth-buffer if needed
558 if ((width != buffer->width) || (height != buffer->height)) {
559 // TODO: we probably should reset the swap rect here
560 // if the window size has changed
561 width = buffer->width;
562 height = buffer->height;
563 if (depth.data) {
564 free(depth.data);
565 depth.width = width;
566 depth.height = height;
567 depth.stride = buffer->stride;
568 uint64_t allocSize = static_cast<uint64_t>(depth.stride) *
569 static_cast<uint64_t>(depth.height) * 2;
570 if (depth.stride < 0 || depth.height > INT_MAX ||
571 allocSize > UINT32_MAX) {
572 setError(EGL_BAD_ALLOC, EGL_FALSE);
573 return EGL_FALSE;
574 }
575 depth.data = (GGLubyte*)malloc(allocSize);
576 if (depth.data == 0) {
577 setError(EGL_BAD_ALLOC, EGL_FALSE);
578 return EGL_FALSE;
579 }
580 }
581 }
582
583 // keep a reference on the buffer
584 buffer->common.incRef(&buffer->common);
585
586 // finally pin the buffer down
587 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN |
588 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) {
589 ALOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)",
590 buffer, buffer->width, buffer->height);
591 return setError(EGL_BAD_ACCESS, EGL_FALSE);
592 // FIXME: we should make sure we're not accessing the buffer anymore
593 }
594 } else {
595 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
596 }
597
598 return EGL_TRUE;
599 }
600
setSwapRectangle(EGLint l,EGLint t,EGLint w,EGLint h)601 EGLBoolean egl_window_surface_v2_t::setSwapRectangle(
602 EGLint l, EGLint t, EGLint w, EGLint h)
603 {
604 dirtyRegion = Rect(l, t, l+w, t+h);
605 return EGL_TRUE;
606 }
607
bindDrawSurface(ogles_context_t * gl)608 EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl)
609 {
610 GGLSurface buffer;
611 buffer.version = sizeof(GGLSurface);
612 buffer.width = this->buffer->width;
613 buffer.height = this->buffer->height;
614 buffer.stride = this->buffer->stride;
615 buffer.data = (GGLubyte*)bits;
616 buffer.format = this->buffer->format;
617 gl->rasterizer.procs.colorBuffer(gl, &buffer);
618 if (depth.data != gl->rasterizer.state.buffers.depth.data)
619 gl->rasterizer.procs.depthBuffer(gl, &depth);
620
621 return EGL_TRUE;
622 }
bindReadSurface(ogles_context_t * gl)623 EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl)
624 {
625 GGLSurface buffer;
626 buffer.version = sizeof(GGLSurface);
627 buffer.width = this->buffer->width;
628 buffer.height = this->buffer->height;
629 buffer.stride = this->buffer->stride;
630 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!!
631 buffer.format = this->buffer->format;
632 gl->rasterizer.procs.readBuffer(gl, &buffer);
633 return EGL_TRUE;
634 }
getHorizontalResolution() const635 EGLint egl_window_surface_v2_t::getHorizontalResolution() const {
636 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
637 }
getVerticalResolution() const638 EGLint egl_window_surface_v2_t::getVerticalResolution() const {
639 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
640 }
getRefreshRate() const641 EGLint egl_window_surface_v2_t::getRefreshRate() const {
642 return (60 * EGL_DISPLAY_SCALING); // FIXME
643 }
getSwapBehavior() const644 EGLint egl_window_surface_v2_t::getSwapBehavior() const
645 {
646 /*
647 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves
648 * the content of the swapped buffer.
649 *
650 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost.
651 *
652 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED
653 * only applies to the area specified by eglSetSwapRectangleANDROID(), that
654 * is, everything outside of this area is preserved.
655 *
656 * This implementation of EGL assumes the later case.
657 *
658 */
659
660 return EGL_BUFFER_DESTROYED;
661 }
662
663 // ----------------------------------------------------------------------------
664
665 struct egl_pixmap_surface_t : public egl_surface_t
666 {
667 egl_pixmap_surface_t(
668 EGLDisplay dpy, EGLConfig config,
669 int32_t depthFormat,
670 egl_native_pixmap_t const * pixmap);
671
~egl_pixmap_surface_tandroid::egl_pixmap_surface_t672 virtual ~egl_pixmap_surface_t() { }
673
initCheckandroid::egl_pixmap_surface_t674 virtual bool initCheck() const { return !depth.format || depth.data!=0; }
675 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
676 virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
getWidthandroid::egl_pixmap_surface_t677 virtual EGLint getWidth() const { return nativePixmap.width; }
getHeightandroid::egl_pixmap_surface_t678 virtual EGLint getHeight() const { return nativePixmap.height; }
679 private:
680 egl_native_pixmap_t nativePixmap;
681 };
682
egl_pixmap_surface_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat,egl_native_pixmap_t const * pixmap)683 egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy,
684 EGLConfig config,
685 int32_t depthFormat,
686 egl_native_pixmap_t const * pixmap)
687 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap)
688 {
689 if (depthFormat) {
690 depth.width = pixmap->width;
691 depth.height = pixmap->height;
692 depth.stride = depth.width; // use the width here
693 uint64_t allocSize = static_cast<uint64_t>(depth.stride) *
694 static_cast<uint64_t>(depth.height) * 2;
695 if (depth.stride < 0 || depth.height > INT_MAX ||
696 allocSize > UINT32_MAX) {
697 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
698 return;
699 }
700 depth.data = (GGLubyte*)malloc(allocSize);
701 if (depth.data == 0) {
702 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
703 }
704 }
705 }
bindDrawSurface(ogles_context_t * gl)706 EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl)
707 {
708 GGLSurface buffer;
709 buffer.version = sizeof(GGLSurface);
710 buffer.width = nativePixmap.width;
711 buffer.height = nativePixmap.height;
712 buffer.stride = nativePixmap.stride;
713 buffer.data = nativePixmap.data;
714 buffer.format = nativePixmap.format;
715
716 gl->rasterizer.procs.colorBuffer(gl, &buffer);
717 if (depth.data != gl->rasterizer.state.buffers.depth.data)
718 gl->rasterizer.procs.depthBuffer(gl, &depth);
719 return EGL_TRUE;
720 }
bindReadSurface(ogles_context_t * gl)721 EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl)
722 {
723 GGLSurface buffer;
724 buffer.version = sizeof(GGLSurface);
725 buffer.width = nativePixmap.width;
726 buffer.height = nativePixmap.height;
727 buffer.stride = nativePixmap.stride;
728 buffer.data = nativePixmap.data;
729 buffer.format = nativePixmap.format;
730 gl->rasterizer.procs.readBuffer(gl, &buffer);
731 return EGL_TRUE;
732 }
733
734 // ----------------------------------------------------------------------------
735
736 struct egl_pbuffer_surface_t : public egl_surface_t
737 {
738 egl_pbuffer_surface_t(
739 EGLDisplay dpy, EGLConfig config, int32_t depthFormat,
740 int32_t w, int32_t h, int32_t f);
741
742 virtual ~egl_pbuffer_surface_t();
743
initCheckandroid::egl_pbuffer_surface_t744 virtual bool initCheck() const { return pbuffer.data != 0; }
745 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
746 virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
getWidthandroid::egl_pbuffer_surface_t747 virtual EGLint getWidth() const { return pbuffer.width; }
getHeightandroid::egl_pbuffer_surface_t748 virtual EGLint getHeight() const { return pbuffer.height; }
749 private:
750 GGLSurface pbuffer;
751 };
752
egl_pbuffer_surface_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat,int32_t w,int32_t h,int32_t f)753 egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy,
754 EGLConfig config, int32_t depthFormat,
755 int32_t w, int32_t h, int32_t f)
756 : egl_surface_t(dpy, config, depthFormat)
757 {
758 size_t size = w*h;
759 switch (f) {
760 case GGL_PIXEL_FORMAT_A_8: size *= 1; break;
761 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break;
762 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break;
763 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break;
764 case GGL_PIXEL_FORMAT_BGRA_8888: size *= 4; break;
765 default:
766 ALOGE("incompatible pixel format for pbuffer (format=%d)", f);
767 pbuffer.data = 0;
768 break;
769 }
770 pbuffer.version = sizeof(GGLSurface);
771 pbuffer.width = w;
772 pbuffer.height = h;
773 pbuffer.stride = w;
774 pbuffer.data = (GGLubyte*)malloc(size);
775 pbuffer.format = f;
776
777 if (depthFormat) {
778 depth.width = pbuffer.width;
779 depth.height = pbuffer.height;
780 depth.stride = depth.width; // use the width here
781 uint64_t allocSize = static_cast<uint64_t>(depth.stride) *
782 static_cast<uint64_t>(depth.height) * 2;
783 if (depth.stride < 0 || depth.height > INT_MAX ||
784 allocSize > UINT32_MAX) {
785 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
786 return;
787 }
788 depth.data = (GGLubyte*)malloc(allocSize);
789 if (depth.data == 0) {
790 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
791 return;
792 }
793 }
794 }
~egl_pbuffer_surface_t()795 egl_pbuffer_surface_t::~egl_pbuffer_surface_t() {
796 free(pbuffer.data);
797 }
bindDrawSurface(ogles_context_t * gl)798 EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl)
799 {
800 gl->rasterizer.procs.colorBuffer(gl, &pbuffer);
801 if (depth.data != gl->rasterizer.state.buffers.depth.data)
802 gl->rasterizer.procs.depthBuffer(gl, &depth);
803 return EGL_TRUE;
804 }
bindReadSurface(ogles_context_t * gl)805 EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl)
806 {
807 gl->rasterizer.procs.readBuffer(gl, &pbuffer);
808 return EGL_TRUE;
809 }
810
811 // ----------------------------------------------------------------------------
812
813 struct config_pair_t {
814 GLint key;
815 GLint value;
816 };
817
818 struct configs_t {
819 const config_pair_t* array;
820 int size;
821 };
822
823 struct config_management_t {
824 GLint key;
825 bool (*match)(GLint reqValue, GLint confValue);
atLeastandroid::config_management_t826 static bool atLeast(GLint reqValue, GLint confValue) {
827 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue);
828 }
exactandroid::config_management_t829 static bool exact(GLint reqValue, GLint confValue) {
830 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue);
831 }
maskandroid::config_management_t832 static bool mask(GLint reqValue, GLint confValue) {
833 return (confValue & reqValue) == reqValue;
834 }
ignoreandroid::config_management_t835 static bool ignore(GLint /*reqValue*/, GLint /*confValue*/) {
836 return true;
837 }
838 };
839
840 // ----------------------------------------------------------------------------
841
842 #define VERSION_MAJOR 1
843 #define VERSION_MINOR 2
844 static char const * const gVendorString = "Google Inc.";
845 static char const * const gVersionString = "1.2 Android Driver 1.2.0";
846 static char const * const gClientApiString = "OpenGL_ES";
847 static char const * const gExtensionsString =
848 "EGL_KHR_fence_sync "
849 "EGL_KHR_image_base "
850 // "KHR_image_pixmap "
851 "EGL_ANDROID_image_native_buffer "
852 "EGL_ANDROID_swap_rectangle "
853 ;
854
855 // ----------------------------------------------------------------------------
856
857 struct extention_map_t {
858 const char * const name;
859 __eglMustCastToProperFunctionPointerType address;
860 };
861
862 static const extention_map_t gExtentionMap[] = {
863 { "glDrawTexsOES",
864 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES },
865 { "glDrawTexiOES",
866 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES },
867 { "glDrawTexfOES",
868 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES },
869 { "glDrawTexxOES",
870 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES },
871 { "glDrawTexsvOES",
872 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES },
873 { "glDrawTexivOES",
874 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES },
875 { "glDrawTexfvOES",
876 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES },
877 { "glDrawTexxvOES",
878 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES },
879 { "glQueryMatrixxOES",
880 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES },
881 { "glEGLImageTargetTexture2DOES",
882 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES },
883 { "glEGLImageTargetRenderbufferStorageOES",
884 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES },
885 { "glClipPlanef",
886 (__eglMustCastToProperFunctionPointerType)&glClipPlanef },
887 { "glClipPlanex",
888 (__eglMustCastToProperFunctionPointerType)&glClipPlanex },
889 { "glBindBuffer",
890 (__eglMustCastToProperFunctionPointerType)&glBindBuffer },
891 { "glBufferData",
892 (__eglMustCastToProperFunctionPointerType)&glBufferData },
893 { "glBufferSubData",
894 (__eglMustCastToProperFunctionPointerType)&glBufferSubData },
895 { "glDeleteBuffers",
896 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers },
897 { "glGenBuffers",
898 (__eglMustCastToProperFunctionPointerType)&glGenBuffers },
899 { "eglCreateImageKHR",
900 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR },
901 { "eglDestroyImageKHR",
902 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR },
903 { "eglCreateSyncKHR",
904 (__eglMustCastToProperFunctionPointerType)&eglCreateSyncKHR },
905 { "eglDestroySyncKHR",
906 (__eglMustCastToProperFunctionPointerType)&eglDestroySyncKHR },
907 { "eglClientWaitSyncKHR",
908 (__eglMustCastToProperFunctionPointerType)&eglClientWaitSyncKHR },
909 { "eglGetSyncAttribKHR",
910 (__eglMustCastToProperFunctionPointerType)&eglGetSyncAttribKHR },
911 { "eglSetSwapRectangleANDROID",
912 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID },
913 };
914
915 /*
916 * In the lists below, attributes names MUST be sorted.
917 * Additionally, all configs must be sorted according to
918 * the EGL specification.
919 */
920
921 static config_pair_t const config_base_attribute_list[] = {
922 { EGL_STENCIL_SIZE, 0 },
923 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG },
924 { EGL_LEVEL, 0 },
925 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS },
926 { EGL_MAX_PBUFFER_PIXELS,
927 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS },
928 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS },
929 { EGL_NATIVE_RENDERABLE, EGL_TRUE },
930 { EGL_NATIVE_VISUAL_ID, 0 },
931 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 },
932 { EGL_SAMPLES, 0 },
933 { EGL_SAMPLE_BUFFERS, 0 },
934 { EGL_TRANSPARENT_TYPE, EGL_NONE },
935 { EGL_TRANSPARENT_BLUE_VALUE, 0 },
936 { EGL_TRANSPARENT_GREEN_VALUE, 0 },
937 { EGL_TRANSPARENT_RED_VALUE, 0 },
938 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE },
939 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE },
940 { EGL_MIN_SWAP_INTERVAL, 1 },
941 { EGL_MAX_SWAP_INTERVAL, 1 },
942 { EGL_LUMINANCE_SIZE, 0 },
943 { EGL_ALPHA_MASK_SIZE, 0 },
944 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER },
945 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT },
946 { EGL_CONFORMANT, 0 }
947 };
948
949 // These configs can override the base attribute list
950 // NOTE: when adding a config here, don't forget to update eglCreate*Surface()
951
952 // 565 configs
953 static config_pair_t const config_0_attribute_list[] = {
954 { EGL_BUFFER_SIZE, 16 },
955 { EGL_ALPHA_SIZE, 0 },
956 { EGL_BLUE_SIZE, 5 },
957 { EGL_GREEN_SIZE, 6 },
958 { EGL_RED_SIZE, 5 },
959 { EGL_DEPTH_SIZE, 0 },
960 { EGL_CONFIG_ID, 0 },
961 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 },
962 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
963 };
964
965 static config_pair_t const config_1_attribute_list[] = {
966 { EGL_BUFFER_SIZE, 16 },
967 { EGL_ALPHA_SIZE, 0 },
968 { EGL_BLUE_SIZE, 5 },
969 { EGL_GREEN_SIZE, 6 },
970 { EGL_RED_SIZE, 5 },
971 { EGL_DEPTH_SIZE, 16 },
972 { EGL_CONFIG_ID, 1 },
973 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 },
974 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
975 };
976
977 // RGB 888 configs
978 static config_pair_t const config_2_attribute_list[] = {
979 { EGL_BUFFER_SIZE, 32 },
980 { EGL_ALPHA_SIZE, 0 },
981 { EGL_BLUE_SIZE, 8 },
982 { EGL_GREEN_SIZE, 8 },
983 { EGL_RED_SIZE, 8 },
984 { EGL_DEPTH_SIZE, 0 },
985 { EGL_CONFIG_ID, 6 },
986 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 },
987 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
988 };
989
990 static config_pair_t const config_3_attribute_list[] = {
991 { EGL_BUFFER_SIZE, 32 },
992 { EGL_ALPHA_SIZE, 0 },
993 { EGL_BLUE_SIZE, 8 },
994 { EGL_GREEN_SIZE, 8 },
995 { EGL_RED_SIZE, 8 },
996 { EGL_DEPTH_SIZE, 16 },
997 { EGL_CONFIG_ID, 7 },
998 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 },
999 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
1000 };
1001
1002 // 8888 configs
1003 static config_pair_t const config_4_attribute_list[] = {
1004 { EGL_BUFFER_SIZE, 32 },
1005 { EGL_ALPHA_SIZE, 8 },
1006 { EGL_BLUE_SIZE, 8 },
1007 { EGL_GREEN_SIZE, 8 },
1008 { EGL_RED_SIZE, 8 },
1009 { EGL_DEPTH_SIZE, 0 },
1010 { EGL_CONFIG_ID, 2 },
1011 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 },
1012 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
1013 };
1014
1015 static config_pair_t const config_5_attribute_list[] = {
1016 { EGL_BUFFER_SIZE, 32 },
1017 { EGL_ALPHA_SIZE, 8 },
1018 { EGL_BLUE_SIZE, 8 },
1019 { EGL_GREEN_SIZE, 8 },
1020 { EGL_RED_SIZE, 8 },
1021 { EGL_DEPTH_SIZE, 16 },
1022 { EGL_CONFIG_ID, 3 },
1023 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 },
1024 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
1025 };
1026
1027 // A8 configs
1028 static config_pair_t const config_6_attribute_list[] = {
1029 { EGL_BUFFER_SIZE, 8 },
1030 { EGL_ALPHA_SIZE, 8 },
1031 { EGL_BLUE_SIZE, 0 },
1032 { EGL_GREEN_SIZE, 0 },
1033 { EGL_RED_SIZE, 0 },
1034 { EGL_DEPTH_SIZE, 0 },
1035 { EGL_CONFIG_ID, 4 },
1036 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 },
1037 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
1038 };
1039
1040 static config_pair_t const config_7_attribute_list[] = {
1041 { EGL_BUFFER_SIZE, 8 },
1042 { EGL_ALPHA_SIZE, 8 },
1043 { EGL_BLUE_SIZE, 0 },
1044 { EGL_GREEN_SIZE, 0 },
1045 { EGL_RED_SIZE, 0 },
1046 { EGL_DEPTH_SIZE, 16 },
1047 { EGL_CONFIG_ID, 5 },
1048 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 },
1049 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
1050 };
1051
1052 // BGRA 8888 config
1053 static config_pair_t const config_8_attribute_list[] = {
1054 { EGL_BUFFER_SIZE, 32 },
1055 { EGL_ALPHA_SIZE, 8 },
1056 { EGL_BLUE_SIZE, 8 },
1057 { EGL_GREEN_SIZE, 8 },
1058 { EGL_RED_SIZE, 8 },
1059 { EGL_DEPTH_SIZE, 0 },
1060 { EGL_CONFIG_ID, 8 },
1061 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_BGRA_8888 },
1062 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
1063 };
1064
1065 static configs_t const gConfigs[] = {
1066 { config_0_attribute_list, NELEM(config_0_attribute_list) },
1067 { config_1_attribute_list, NELEM(config_1_attribute_list) },
1068 { config_2_attribute_list, NELEM(config_2_attribute_list) },
1069 { config_3_attribute_list, NELEM(config_3_attribute_list) },
1070 { config_4_attribute_list, NELEM(config_4_attribute_list) },
1071 { config_5_attribute_list, NELEM(config_5_attribute_list) },
1072 { config_6_attribute_list, NELEM(config_6_attribute_list) },
1073 { config_7_attribute_list, NELEM(config_7_attribute_list) },
1074 { config_8_attribute_list, NELEM(config_8_attribute_list) },
1075 };
1076
1077 static config_management_t const gConfigManagement[] = {
1078 { EGL_BUFFER_SIZE, config_management_t::atLeast },
1079 { EGL_ALPHA_SIZE, config_management_t::atLeast },
1080 { EGL_BLUE_SIZE, config_management_t::atLeast },
1081 { EGL_GREEN_SIZE, config_management_t::atLeast },
1082 { EGL_RED_SIZE, config_management_t::atLeast },
1083 { EGL_DEPTH_SIZE, config_management_t::atLeast },
1084 { EGL_STENCIL_SIZE, config_management_t::atLeast },
1085 { EGL_CONFIG_CAVEAT, config_management_t::exact },
1086 { EGL_CONFIG_ID, config_management_t::exact },
1087 { EGL_LEVEL, config_management_t::exact },
1088 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::ignore },
1089 { EGL_MAX_PBUFFER_PIXELS, config_management_t::ignore },
1090 { EGL_MAX_PBUFFER_WIDTH, config_management_t::ignore },
1091 { EGL_NATIVE_RENDERABLE, config_management_t::exact },
1092 { EGL_NATIVE_VISUAL_ID, config_management_t::ignore },
1093 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact },
1094 { EGL_SAMPLES, config_management_t::exact },
1095 { EGL_SAMPLE_BUFFERS, config_management_t::exact },
1096 { EGL_SURFACE_TYPE, config_management_t::mask },
1097 { EGL_TRANSPARENT_TYPE, config_management_t::exact },
1098 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact },
1099 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact },
1100 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact },
1101 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact },
1102 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact },
1103 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact },
1104 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact },
1105 { EGL_LUMINANCE_SIZE, config_management_t::atLeast },
1106 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast },
1107 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact },
1108 { EGL_RENDERABLE_TYPE, config_management_t::mask },
1109 { EGL_CONFORMANT, config_management_t::mask }
1110 };
1111
1112
1113 static config_pair_t const config_defaults[] = {
1114 // attributes that are not specified are simply ignored, if a particular
1115 // one needs not be ignored, it must be specified here, eg:
1116 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT },
1117 };
1118
1119 // ----------------------------------------------------------------------------
1120
getConfigFormatInfo(EGLint configID,int32_t & pixelFormat,int32_t & depthFormat)1121 static status_t getConfigFormatInfo(EGLint configID,
1122 int32_t& pixelFormat, int32_t& depthFormat)
1123 {
1124 switch(configID) {
1125 case 0:
1126 pixelFormat = GGL_PIXEL_FORMAT_RGB_565;
1127 depthFormat = 0;
1128 break;
1129 case 1:
1130 pixelFormat = GGL_PIXEL_FORMAT_RGB_565;
1131 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1132 break;
1133 case 2:
1134 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888;
1135 depthFormat = 0;
1136 break;
1137 case 3:
1138 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888;
1139 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1140 break;
1141 case 4:
1142 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
1143 depthFormat = 0;
1144 break;
1145 case 5:
1146 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
1147 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1148 break;
1149 case 6:
1150 pixelFormat = GGL_PIXEL_FORMAT_A_8;
1151 depthFormat = 0;
1152 break;
1153 case 7:
1154 pixelFormat = GGL_PIXEL_FORMAT_A_8;
1155 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1156 break;
1157 case 8:
1158 pixelFormat = GGL_PIXEL_FORMAT_BGRA_8888;
1159 depthFormat = 0;
1160 break;
1161 default:
1162 return NAME_NOT_FOUND;
1163 }
1164 return NO_ERROR;
1165 }
1166
1167 // ----------------------------------------------------------------------------
1168
1169 template<typename T>
binarySearch(T const sortedArray[],int first,int last,EGLint key)1170 static int binarySearch(T const sortedArray[], int first, int last, EGLint key)
1171 {
1172 while (first <= last) {
1173 int mid = (first + last) / 2;
1174 if (key > sortedArray[mid].key) {
1175 first = mid + 1;
1176 } else if (key < sortedArray[mid].key) {
1177 last = mid - 1;
1178 } else {
1179 return mid;
1180 }
1181 }
1182 return -1;
1183 }
1184
isAttributeMatching(int i,EGLint attr,EGLint val)1185 static int isAttributeMatching(int i, EGLint attr, EGLint val)
1186 {
1187 // look for the attribute in all of our configs
1188 config_pair_t const* configFound = gConfigs[i].array;
1189 int index = binarySearch<config_pair_t>(
1190 gConfigs[i].array,
1191 0, gConfigs[i].size-1,
1192 attr);
1193 if (index < 0) {
1194 configFound = config_base_attribute_list;
1195 index = binarySearch<config_pair_t>(
1196 config_base_attribute_list,
1197 0, NELEM(config_base_attribute_list)-1,
1198 attr);
1199 }
1200 if (index >= 0) {
1201 // attribute found, check if this config could match
1202 int cfgMgtIndex = binarySearch<config_management_t>(
1203 gConfigManagement,
1204 0, NELEM(gConfigManagement)-1,
1205 attr);
1206 if (cfgMgtIndex >= 0) {
1207 bool match = gConfigManagement[cfgMgtIndex].match(
1208 val, configFound[index].value);
1209 if (match) {
1210 // this config matches
1211 return 1;
1212 }
1213 } else {
1214 // attribute not found. this should NEVER happen.
1215 }
1216 } else {
1217 // error, this attribute doesn't exist
1218 }
1219 return 0;
1220 }
1221
makeCurrent(ogles_context_t * gl)1222 static int makeCurrent(ogles_context_t* gl)
1223 {
1224 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific();
1225 if (gl) {
1226 egl_context_t* c = egl_context_t::context(gl);
1227 if (c->flags & egl_context_t::IS_CURRENT) {
1228 if (current != gl) {
1229 // it is an error to set a context current, if it's already
1230 // current to another thread
1231 return -1;
1232 }
1233 } else {
1234 if (current) {
1235 // mark the current context as not current, and flush
1236 glFlush();
1237 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT;
1238 }
1239 }
1240 if (!(c->flags & egl_context_t::IS_CURRENT)) {
1241 // The context is not current, make it current!
1242 setGlThreadSpecific(gl);
1243 c->flags |= egl_context_t::IS_CURRENT;
1244 }
1245 } else {
1246 if (current) {
1247 // mark the current context as not current, and flush
1248 glFlush();
1249 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT;
1250 }
1251 // this thread has no context attached to it
1252 setGlThreadSpecific(0);
1253 }
1254 return 0;
1255 }
1256
getConfigAttrib(EGLDisplay,EGLConfig config,EGLint attribute,EGLint * value)1257 static EGLBoolean getConfigAttrib(EGLDisplay /*dpy*/, EGLConfig config,
1258 EGLint attribute, EGLint *value)
1259 {
1260 size_t numConfigs = NELEM(gConfigs);
1261 int index = (int)(uintptr_t)config;
1262 if (uint32_t(index) >= numConfigs)
1263 return setError(EGL_BAD_CONFIG, EGL_FALSE);
1264
1265 int attrIndex;
1266 attrIndex = binarySearch<config_pair_t>(
1267 gConfigs[index].array,
1268 0, gConfigs[index].size-1,
1269 attribute);
1270 if (attrIndex>=0) {
1271 *value = gConfigs[index].array[attrIndex].value;
1272 return EGL_TRUE;
1273 }
1274
1275 attrIndex = binarySearch<config_pair_t>(
1276 config_base_attribute_list,
1277 0, NELEM(config_base_attribute_list)-1,
1278 attribute);
1279 if (attrIndex>=0) {
1280 *value = config_base_attribute_list[attrIndex].value;
1281 return EGL_TRUE;
1282 }
1283 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
1284 }
1285
createWindowSurface(EGLDisplay dpy,EGLConfig config,NativeWindowType window,const EGLint *)1286 static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config,
1287 NativeWindowType window, const EGLint* /*attrib_list*/)
1288 {
1289 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1290 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1291 if (window == 0)
1292 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1293
1294 EGLint surfaceType;
1295 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
1296 return EGL_FALSE;
1297
1298 if (!(surfaceType & EGL_WINDOW_BIT))
1299 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1300
1301 if (static_cast<ANativeWindow*>(window)->common.magic !=
1302 ANDROID_NATIVE_WINDOW_MAGIC) {
1303 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
1304 }
1305
1306 EGLint configID;
1307 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
1308 return EGL_FALSE;
1309
1310 int32_t depthFormat;
1311 int32_t pixelFormat;
1312 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
1313 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1314 }
1315
1316 // FIXME: we don't have access to the pixelFormat here just yet.
1317 // (it's possible that the surface is not fully initialized)
1318 // maybe this should be done after the page-flip
1319 //if (EGLint(info.format) != pixelFormat)
1320 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1321
1322 egl_surface_t* surface;
1323 surface = new egl_window_surface_v2_t(dpy, config, depthFormat,
1324 static_cast<ANativeWindow*>(window));
1325
1326 if (!surface->initCheck()) {
1327 // there was a problem in the ctor, the error
1328 // flag has been set.
1329 delete surface;
1330 surface = 0;
1331 }
1332 return surface;
1333 }
1334
createPixmapSurface(EGLDisplay dpy,EGLConfig config,NativePixmapType pixmap,const EGLint *)1335 static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config,
1336 NativePixmapType pixmap, const EGLint* /*attrib_list*/)
1337 {
1338 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1339 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1340 if (pixmap == 0)
1341 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1342
1343 EGLint surfaceType;
1344 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
1345 return EGL_FALSE;
1346
1347 if (!(surfaceType & EGL_PIXMAP_BIT))
1348 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1349
1350 if (static_cast<egl_native_pixmap_t*>(pixmap)->version !=
1351 sizeof(egl_native_pixmap_t)) {
1352 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE);
1353 }
1354
1355 EGLint configID;
1356 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
1357 return EGL_FALSE;
1358
1359 int32_t depthFormat;
1360 int32_t pixelFormat;
1361 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
1362 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1363 }
1364
1365 if (pixmap->format != pixelFormat)
1366 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1367
1368 egl_surface_t* surface =
1369 new egl_pixmap_surface_t(dpy, config, depthFormat,
1370 static_cast<egl_native_pixmap_t*>(pixmap));
1371
1372 if (!surface->initCheck()) {
1373 // there was a problem in the ctor, the error
1374 // flag has been set.
1375 delete surface;
1376 surface = 0;
1377 }
1378 return surface;
1379 }
1380
createPbufferSurface(EGLDisplay dpy,EGLConfig config,const EGLint * attrib_list)1381 static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config,
1382 const EGLint *attrib_list)
1383 {
1384 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1385 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1386
1387 EGLint surfaceType;
1388 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
1389 return EGL_FALSE;
1390
1391 if (!(surfaceType & EGL_PBUFFER_BIT))
1392 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1393
1394 EGLint configID;
1395 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
1396 return EGL_FALSE;
1397
1398 int32_t depthFormat;
1399 int32_t pixelFormat;
1400 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
1401 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1402 }
1403
1404 int32_t w = 0;
1405 int32_t h = 0;
1406 while (attrib_list[0] != EGL_NONE) {
1407 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1];
1408 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1];
1409 attrib_list+=2;
1410 }
1411
1412 egl_surface_t* surface =
1413 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat);
1414
1415 if (!surface->initCheck()) {
1416 // there was a problem in the ctor, the error
1417 // flag has been set.
1418 delete surface;
1419 surface = 0;
1420 }
1421 return surface;
1422 }
1423
1424 // ----------------------------------------------------------------------------
1425 }; // namespace android
1426 // ----------------------------------------------------------------------------
1427
1428 using namespace android;
1429
1430 // ----------------------------------------------------------------------------
1431 // Initialization
1432 // ----------------------------------------------------------------------------
1433
eglGetDisplay(NativeDisplayType display)1434 EGLDisplay eglGetDisplay(NativeDisplayType display)
1435 {
1436 #ifndef __ANDROID__
1437 // this just needs to be done once
1438 if (gGLKey == -1) {
1439 pthread_mutex_lock(&gInitMutex);
1440 if (gGLKey == -1)
1441 pthread_key_create(&gGLKey, NULL);
1442 pthread_mutex_unlock(&gInitMutex);
1443 }
1444 #endif
1445 if (display == EGL_DEFAULT_DISPLAY) {
1446 EGLDisplay dpy = (EGLDisplay)1;
1447 egl_display_t& d = egl_display_t::get_display(dpy);
1448 d.type = display;
1449 return dpy;
1450 }
1451 return EGL_NO_DISPLAY;
1452 }
1453
eglInitialize(EGLDisplay dpy,EGLint * major,EGLint * minor)1454 EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
1455 {
1456 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1457 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1458
1459 EGLBoolean res = EGL_TRUE;
1460 egl_display_t& d = egl_display_t::get_display(dpy);
1461
1462 if (d.initialized.fetch_add(1, std::memory_order_acquire) == 0) {
1463 // initialize stuff here if needed
1464 //pthread_mutex_lock(&gInitMutex);
1465 //pthread_mutex_unlock(&gInitMutex);
1466 }
1467
1468 if (res == EGL_TRUE) {
1469 if (major != NULL) *major = VERSION_MAJOR;
1470 if (minor != NULL) *minor = VERSION_MINOR;
1471 }
1472 return res;
1473 }
1474
eglTerminate(EGLDisplay dpy)1475 EGLBoolean eglTerminate(EGLDisplay dpy)
1476 {
1477 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1478 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1479
1480 EGLBoolean res = EGL_TRUE;
1481 egl_display_t& d = egl_display_t::get_display(dpy);
1482 if (d.initialized.fetch_sub(1, std::memory_order_release) == 1) {
1483 std::atomic_thread_fence(std::memory_order_acquire);
1484 // TODO: destroy all resources (surfaces, contexts, etc...)
1485 //pthread_mutex_lock(&gInitMutex);
1486 //pthread_mutex_unlock(&gInitMutex);
1487 }
1488 return res;
1489 }
1490
1491 // ----------------------------------------------------------------------------
1492 // configuration
1493 // ----------------------------------------------------------------------------
1494
eglGetConfigs(EGLDisplay dpy,EGLConfig * configs,EGLint config_size,EGLint * num_config)1495 EGLBoolean eglGetConfigs( EGLDisplay dpy,
1496 EGLConfig *configs,
1497 EGLint config_size, EGLint *num_config)
1498 {
1499 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1500 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1501
1502 if (ggl_unlikely(num_config==NULL))
1503 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1504
1505 GLint numConfigs = NELEM(gConfigs);
1506 if (!configs) {
1507 *num_config = numConfigs;
1508 return EGL_TRUE;
1509 }
1510 GLint i;
1511 for (i=0 ; i<numConfigs && i<config_size ; i++) {
1512 *configs++ = (EGLConfig)(uintptr_t)i;
1513 }
1514 *num_config = i;
1515 return EGL_TRUE;
1516 }
1517
eglChooseConfig(EGLDisplay dpy,const EGLint * attrib_list,EGLConfig * configs,EGLint config_size,EGLint * num_config)1518 EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list,
1519 EGLConfig *configs, EGLint config_size,
1520 EGLint *num_config)
1521 {
1522 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1523 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1524
1525 if (ggl_unlikely(num_config==NULL)) {
1526 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1527 }
1528
1529 if (ggl_unlikely(attrib_list==0)) {
1530 /*
1531 * A NULL attrib_list should be treated as though it was an empty
1532 * one (terminated with EGL_NONE) as defined in
1533 * section 3.4.1 "Querying Configurations" in the EGL specification.
1534 */
1535 static const EGLint dummy = EGL_NONE;
1536 attrib_list = &dummy;
1537 }
1538
1539 int numAttributes = 0;
1540 int numConfigs = NELEM(gConfigs);
1541 uint32_t possibleMatch = (1<<numConfigs)-1;
1542 while(possibleMatch && *attrib_list != EGL_NONE) {
1543 numAttributes++;
1544 EGLint attr = *attrib_list++;
1545 EGLint val = *attrib_list++;
1546 for (int i=0 ; possibleMatch && i<numConfigs ; i++) {
1547 if (!(possibleMatch & (1<<i)))
1548 continue;
1549 if (isAttributeMatching(i, attr, val) == 0) {
1550 possibleMatch &= ~(1<<i);
1551 }
1552 }
1553 }
1554
1555 // now, handle the attributes which have a useful default value
1556 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) {
1557 // see if this attribute was specified, if not, apply its
1558 // default value
1559 if (binarySearch<config_pair_t>(
1560 (config_pair_t const*)attrib_list,
1561 0, numAttributes-1,
1562 config_defaults[j].key) < 0)
1563 {
1564 for (int i=0 ; possibleMatch && i<numConfigs ; i++) {
1565 if (!(possibleMatch & (1<<i)))
1566 continue;
1567 if (isAttributeMatching(i,
1568 config_defaults[j].key,
1569 config_defaults[j].value) == 0)
1570 {
1571 possibleMatch &= ~(1<<i);
1572 }
1573 }
1574 }
1575 }
1576
1577 // return the configurations found
1578 int n=0;
1579 if (possibleMatch) {
1580 if (configs) {
1581 for (int i=0 ; config_size && i<numConfigs ; i++) {
1582 if (possibleMatch & (1<<i)) {
1583 *configs++ = (EGLConfig)(uintptr_t)i;
1584 config_size--;
1585 n++;
1586 }
1587 }
1588 } else {
1589 for (int i=0 ; i<numConfigs ; i++) {
1590 if (possibleMatch & (1<<i)) {
1591 n++;
1592 }
1593 }
1594 }
1595 }
1596 *num_config = n;
1597 return EGL_TRUE;
1598 }
1599
eglGetConfigAttrib(EGLDisplay dpy,EGLConfig config,EGLint attribute,EGLint * value)1600 EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
1601 EGLint attribute, EGLint *value)
1602 {
1603 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1604 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1605
1606 return getConfigAttrib(dpy, config, attribute, value);
1607 }
1608
1609 // ----------------------------------------------------------------------------
1610 // surfaces
1611 // ----------------------------------------------------------------------------
1612
eglCreateWindowSurface(EGLDisplay dpy,EGLConfig config,NativeWindowType window,const EGLint * attrib_list)1613 EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config,
1614 NativeWindowType window,
1615 const EGLint *attrib_list)
1616 {
1617 return createWindowSurface(dpy, config, window, attrib_list);
1618 }
1619
eglCreatePixmapSurface(EGLDisplay dpy,EGLConfig config,NativePixmapType pixmap,const EGLint * attrib_list)1620 EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config,
1621 NativePixmapType pixmap,
1622 const EGLint *attrib_list)
1623 {
1624 return createPixmapSurface(dpy, config, pixmap, attrib_list);
1625 }
1626
eglCreatePbufferSurface(EGLDisplay dpy,EGLConfig config,const EGLint * attrib_list)1627 EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config,
1628 const EGLint *attrib_list)
1629 {
1630 return createPbufferSurface(dpy, config, attrib_list);
1631 }
1632
eglDestroySurface(EGLDisplay dpy,EGLSurface eglSurface)1633 EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface)
1634 {
1635 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1636 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1637 if (eglSurface != EGL_NO_SURFACE) {
1638 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) );
1639 if (!surface->isValid())
1640 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1641 if (surface->dpy != dpy)
1642 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1643 if (surface->ctx) {
1644 // defer disconnect/delete until no longer current
1645 surface->zombie = true;
1646 } else {
1647 surface->disconnect();
1648 delete surface;
1649 }
1650 }
1651 return EGL_TRUE;
1652 }
1653
eglQuerySurface(EGLDisplay dpy,EGLSurface eglSurface,EGLint attribute,EGLint * value)1654 EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface,
1655 EGLint attribute, EGLint *value)
1656 {
1657 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1658 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1659 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface);
1660 if (!surface->isValid())
1661 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1662 if (surface->dpy != dpy)
1663 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1664
1665 EGLBoolean ret = EGL_TRUE;
1666 switch (attribute) {
1667 case EGL_CONFIG_ID:
1668 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value);
1669 break;
1670 case EGL_WIDTH:
1671 *value = surface->getWidth();
1672 break;
1673 case EGL_HEIGHT:
1674 *value = surface->getHeight();
1675 break;
1676 case EGL_LARGEST_PBUFFER:
1677 // not modified for a window or pixmap surface
1678 break;
1679 case EGL_TEXTURE_FORMAT:
1680 *value = EGL_NO_TEXTURE;
1681 break;
1682 case EGL_TEXTURE_TARGET:
1683 *value = EGL_NO_TEXTURE;
1684 break;
1685 case EGL_MIPMAP_TEXTURE:
1686 *value = EGL_FALSE;
1687 break;
1688 case EGL_MIPMAP_LEVEL:
1689 *value = 0;
1690 break;
1691 case EGL_RENDER_BUFFER:
1692 // TODO: return the real RENDER_BUFFER here
1693 *value = EGL_BACK_BUFFER;
1694 break;
1695 case EGL_HORIZONTAL_RESOLUTION:
1696 // pixel/mm * EGL_DISPLAY_SCALING
1697 *value = surface->getHorizontalResolution();
1698 break;
1699 case EGL_VERTICAL_RESOLUTION:
1700 // pixel/mm * EGL_DISPLAY_SCALING
1701 *value = surface->getVerticalResolution();
1702 break;
1703 case EGL_PIXEL_ASPECT_RATIO: {
1704 // w/h * EGL_DISPLAY_SCALING
1705 int wr = surface->getHorizontalResolution();
1706 int hr = surface->getVerticalResolution();
1707 *value = (wr * EGL_DISPLAY_SCALING) / hr;
1708 } break;
1709 case EGL_SWAP_BEHAVIOR:
1710 *value = surface->getSwapBehavior();
1711 break;
1712 default:
1713 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
1714 }
1715 return ret;
1716 }
1717
eglCreateContext(EGLDisplay dpy,EGLConfig config,EGLContext,const EGLint *)1718 EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config,
1719 EGLContext /*share_list*/, const EGLint* /*attrib_list*/)
1720 {
1721 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1722 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1723
1724 ogles_context_t* gl = ogles_init(sizeof(egl_context_t));
1725 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT);
1726
1727 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base);
1728 c->flags = egl_context_t::NEVER_CURRENT;
1729 c->dpy = dpy;
1730 c->config = config;
1731 c->read = 0;
1732 c->draw = 0;
1733 return (EGLContext)gl;
1734 }
1735
eglDestroyContext(EGLDisplay dpy,EGLContext ctx)1736 EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
1737 {
1738 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1739 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1740 egl_context_t* c = egl_context_t::context(ctx);
1741 if (c->flags & egl_context_t::IS_CURRENT)
1742 setGlThreadSpecific(0);
1743 ogles_uninit((ogles_context_t*)ctx);
1744 return EGL_TRUE;
1745 }
1746
eglMakeCurrent(EGLDisplay dpy,EGLSurface draw,EGLSurface read,EGLContext ctx)1747 EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw,
1748 EGLSurface read, EGLContext ctx)
1749 {
1750 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1751 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1752 if (draw) {
1753 egl_surface_t* s = (egl_surface_t*)draw;
1754 if (!s->isValid())
1755 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1756 if (s->dpy != dpy)
1757 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1758 // TODO: check that draw is compatible with the context
1759 }
1760 if (read && read!=draw) {
1761 egl_surface_t* s = (egl_surface_t*)read;
1762 if (!s->isValid())
1763 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1764 if (s->dpy != dpy)
1765 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1766 // TODO: check that read is compatible with the context
1767 }
1768
1769 EGLContext current_ctx = EGL_NO_CONTEXT;
1770
1771 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT))
1772 return setError(EGL_BAD_MATCH, EGL_FALSE);
1773
1774 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT))
1775 return setError(EGL_BAD_MATCH, EGL_FALSE);
1776
1777 if (ctx == EGL_NO_CONTEXT) {
1778 // if we're detaching, we need the current context
1779 current_ctx = (EGLContext)getGlThreadSpecific();
1780 } else {
1781 egl_surface_t* d = (egl_surface_t*)draw;
1782 egl_surface_t* r = (egl_surface_t*)read;
1783 if ((d && d->ctx && d->ctx != ctx) ||
1784 (r && r->ctx && r->ctx != ctx)) {
1785 // one of the surface is bound to a context in another thread
1786 return setError(EGL_BAD_ACCESS, EGL_FALSE);
1787 }
1788 }
1789
1790 ogles_context_t* gl = (ogles_context_t*)ctx;
1791 if (makeCurrent(gl) == 0) {
1792 if (ctx) {
1793 egl_context_t* c = egl_context_t::context(ctx);
1794 egl_surface_t* d = (egl_surface_t*)draw;
1795 egl_surface_t* r = (egl_surface_t*)read;
1796
1797 if (c->draw) {
1798 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw);
1799 s->disconnect();
1800 s->ctx = EGL_NO_CONTEXT;
1801 if (s->zombie)
1802 delete s;
1803 }
1804 if (c->read) {
1805 // FIXME: unlock/disconnect the read surface too
1806 }
1807
1808 c->draw = draw;
1809 c->read = read;
1810
1811 if (c->flags & egl_context_t::NEVER_CURRENT) {
1812 c->flags &= ~egl_context_t::NEVER_CURRENT;
1813 GLint w = 0;
1814 GLint h = 0;
1815 if (draw) {
1816 w = d->getWidth();
1817 h = d->getHeight();
1818 }
1819 ogles_surfaceport(gl, 0, 0);
1820 ogles_viewport(gl, 0, 0, w, h);
1821 ogles_scissor(gl, 0, 0, w, h);
1822 }
1823 if (d) {
1824 if (d->connect() == EGL_FALSE) {
1825 return EGL_FALSE;
1826 }
1827 d->ctx = ctx;
1828 d->bindDrawSurface(gl);
1829 }
1830 if (r) {
1831 // FIXME: lock/connect the read surface too
1832 r->ctx = ctx;
1833 r->bindReadSurface(gl);
1834 }
1835 } else {
1836 // if surfaces were bound to the context bound to this thread
1837 // mark then as unbound.
1838 if (current_ctx) {
1839 egl_context_t* c = egl_context_t::context(current_ctx);
1840 egl_surface_t* d = (egl_surface_t*)c->draw;
1841 egl_surface_t* r = (egl_surface_t*)c->read;
1842 if (d) {
1843 c->draw = 0;
1844 d->disconnect();
1845 d->ctx = EGL_NO_CONTEXT;
1846 if (d->zombie)
1847 delete d;
1848 }
1849 if (r) {
1850 c->read = 0;
1851 r->ctx = EGL_NO_CONTEXT;
1852 // FIXME: unlock/disconnect the read surface too
1853 }
1854 }
1855 }
1856 return EGL_TRUE;
1857 }
1858 return setError(EGL_BAD_ACCESS, EGL_FALSE);
1859 }
1860
eglGetCurrentContext(void)1861 EGLContext eglGetCurrentContext(void)
1862 {
1863 // eglGetCurrentContext returns the current EGL rendering context,
1864 // as specified by eglMakeCurrent. If no context is current,
1865 // EGL_NO_CONTEXT is returned.
1866 return (EGLContext)getGlThreadSpecific();
1867 }
1868
eglGetCurrentSurface(EGLint readdraw)1869 EGLSurface eglGetCurrentSurface(EGLint readdraw)
1870 {
1871 // eglGetCurrentSurface returns the read or draw surface attached
1872 // to the current EGL rendering context, as specified by eglMakeCurrent.
1873 // If no context is current, EGL_NO_SURFACE is returned.
1874 EGLContext ctx = (EGLContext)getGlThreadSpecific();
1875 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE;
1876 egl_context_t* c = egl_context_t::context(ctx);
1877 if (readdraw == EGL_READ) {
1878 return c->read;
1879 } else if (readdraw == EGL_DRAW) {
1880 return c->draw;
1881 }
1882 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
1883 }
1884
eglGetCurrentDisplay(void)1885 EGLDisplay eglGetCurrentDisplay(void)
1886 {
1887 // eglGetCurrentDisplay returns the current EGL display connection
1888 // for the current EGL rendering context, as specified by eglMakeCurrent.
1889 // If no context is current, EGL_NO_DISPLAY is returned.
1890 EGLContext ctx = (EGLContext)getGlThreadSpecific();
1891 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY;
1892 egl_context_t* c = egl_context_t::context(ctx);
1893 return c->dpy;
1894 }
1895
eglQueryContext(EGLDisplay dpy,EGLContext ctx,EGLint attribute,EGLint * value)1896 EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx,
1897 EGLint attribute, EGLint *value)
1898 {
1899 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1900 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1901 egl_context_t* c = egl_context_t::context(ctx);
1902 switch (attribute) {
1903 case EGL_CONFIG_ID:
1904 // Returns the ID of the EGL frame buffer configuration with
1905 // respect to which the context was created
1906 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value);
1907 }
1908 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
1909 }
1910
eglWaitGL(void)1911 EGLBoolean eglWaitGL(void)
1912 {
1913 return EGL_TRUE;
1914 }
1915
eglWaitNative(EGLint)1916 EGLBoolean eglWaitNative(EGLint /*engine*/)
1917 {
1918 return EGL_TRUE;
1919 }
1920
eglSwapBuffers(EGLDisplay dpy,EGLSurface draw)1921 EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
1922 {
1923 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1924 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1925
1926 egl_surface_t* d = static_cast<egl_surface_t*>(draw);
1927 if (!d->isValid())
1928 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1929 if (d->dpy != dpy)
1930 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1931
1932 // post the surface
1933 d->swapBuffers();
1934
1935 // if it's bound to a context, update the buffer
1936 if (d->ctx != EGL_NO_CONTEXT) {
1937 d->bindDrawSurface((ogles_context_t*)d->ctx);
1938 // if this surface is also the read surface of the context
1939 // it is bound to, make sure to update the read buffer as well.
1940 // The EGL spec is a little unclear about this.
1941 egl_context_t* c = egl_context_t::context(d->ctx);
1942 if (c->read == draw) {
1943 d->bindReadSurface((ogles_context_t*)d->ctx);
1944 }
1945 }
1946
1947 return EGL_TRUE;
1948 }
1949
eglCopyBuffers(EGLDisplay dpy,EGLSurface,NativePixmapType)1950 EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface /*surface*/,
1951 NativePixmapType /*target*/)
1952 {
1953 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1954 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1955 // TODO: eglCopyBuffers()
1956 return EGL_FALSE;
1957 }
1958
eglGetError(void)1959 EGLint eglGetError(void)
1960 {
1961 return getError();
1962 }
1963
eglQueryString(EGLDisplay dpy,EGLint name)1964 const char* eglQueryString(EGLDisplay dpy, EGLint name)
1965 {
1966 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1967 return setError(EGL_BAD_DISPLAY, (const char*)0);
1968
1969 switch (name) {
1970 case EGL_VENDOR:
1971 return gVendorString;
1972 case EGL_VERSION:
1973 return gVersionString;
1974 case EGL_EXTENSIONS:
1975 return gExtensionsString;
1976 case EGL_CLIENT_APIS:
1977 return gClientApiString;
1978 }
1979 return setError(EGL_BAD_PARAMETER, (const char *)0);
1980 }
1981
1982 // ----------------------------------------------------------------------------
1983 // EGL 1.1
1984 // ----------------------------------------------------------------------------
1985
eglSurfaceAttrib(EGLDisplay dpy,EGLSurface,EGLint,EGLint)1986 EGLBoolean eglSurfaceAttrib(
1987 EGLDisplay dpy, EGLSurface /*surface*/, EGLint /*attribute*/, EGLint /*value*/)
1988 {
1989 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1990 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1991 // TODO: eglSurfaceAttrib()
1992 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1993 }
1994
eglBindTexImage(EGLDisplay dpy,EGLSurface,EGLint)1995 EGLBoolean eglBindTexImage(
1996 EGLDisplay dpy, EGLSurface /*surface*/, EGLint /*buffer*/)
1997 {
1998 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1999 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
2000 // TODO: eglBindTexImage()
2001 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2002 }
2003
eglReleaseTexImage(EGLDisplay dpy,EGLSurface,EGLint)2004 EGLBoolean eglReleaseTexImage(
2005 EGLDisplay dpy, EGLSurface /*surface*/, EGLint /*buffer*/)
2006 {
2007 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
2008 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
2009 // TODO: eglReleaseTexImage()
2010 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2011 }
2012
eglSwapInterval(EGLDisplay dpy,EGLint)2013 EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint /*interval*/)
2014 {
2015 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
2016 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
2017 // TODO: eglSwapInterval()
2018 return EGL_TRUE;
2019 }
2020
2021 // ----------------------------------------------------------------------------
2022 // EGL 1.2
2023 // ----------------------------------------------------------------------------
2024
eglBindAPI(EGLenum api)2025 EGLBoolean eglBindAPI(EGLenum api)
2026 {
2027 if (api != EGL_OPENGL_ES_API)
2028 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2029 return EGL_TRUE;
2030 }
2031
eglQueryAPI(void)2032 EGLenum eglQueryAPI(void)
2033 {
2034 return EGL_OPENGL_ES_API;
2035 }
2036
eglWaitClient(void)2037 EGLBoolean eglWaitClient(void)
2038 {
2039 glFinish();
2040 return EGL_TRUE;
2041 }
2042
eglReleaseThread(void)2043 EGLBoolean eglReleaseThread(void)
2044 {
2045 // TODO: eglReleaseThread()
2046 return EGL_TRUE;
2047 }
2048
eglCreatePbufferFromClientBuffer(EGLDisplay dpy,EGLenum,EGLClientBuffer,EGLConfig,const EGLint *)2049 EGLSurface eglCreatePbufferFromClientBuffer(
2050 EGLDisplay dpy, EGLenum /*buftype*/, EGLClientBuffer /*buffer*/,
2051 EGLConfig /*config*/, const EGLint* /*attrib_list*/)
2052 {
2053 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
2054 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
2055 // TODO: eglCreatePbufferFromClientBuffer()
2056 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
2057 }
2058
2059 // ----------------------------------------------------------------------------
2060 // EGL_EGLEXT_VERSION 3
2061 // ----------------------------------------------------------------------------
2062
eglGetProcAddress(const char * procname)2063 void (*eglGetProcAddress (const char *procname))()
2064 {
2065 extention_map_t const * const map = gExtentionMap;
2066 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) {
2067 if (!strcmp(procname, map[i].name)) {
2068 return map[i].address;
2069 }
2070 }
2071 return NULL;
2072 }
2073
eglLockSurfaceKHR(EGLDisplay,EGLSurface,const EGLint *)2074 EGLBoolean eglLockSurfaceKHR(EGLDisplay /*dpy*/, EGLSurface /*surface*/,
2075 const EGLint* /*attrib_list*/)
2076 {
2077 EGLBoolean result = EGL_FALSE;
2078 return result;
2079 }
2080
eglUnlockSurfaceKHR(EGLDisplay,EGLSurface)2081 EGLBoolean eglUnlockSurfaceKHR(EGLDisplay /*dpy*/, EGLSurface /*surface*/)
2082 {
2083 EGLBoolean result = EGL_FALSE;
2084 return result;
2085 }
2086
eglCreateImageKHR(EGLDisplay dpy,EGLContext ctx,EGLenum target,EGLClientBuffer buffer,const EGLint *)2087 EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
2088 EGLClientBuffer buffer, const EGLint* /*attrib_list*/)
2089 {
2090 if (egl_display_t::is_valid(dpy) == EGL_FALSE) {
2091 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR);
2092 }
2093 if (ctx != EGL_NO_CONTEXT) {
2094 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR);
2095 }
2096 if (target != EGL_NATIVE_BUFFER_ANDROID) {
2097 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
2098 }
2099
2100 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)buffer;
2101
2102 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC)
2103 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
2104
2105 if (native_buffer->common.version != sizeof(ANativeWindowBuffer))
2106 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
2107
2108 switch (native_buffer->format) {
2109 case HAL_PIXEL_FORMAT_RGBA_8888:
2110 case HAL_PIXEL_FORMAT_RGBX_8888:
2111 case HAL_PIXEL_FORMAT_RGB_888:
2112 case HAL_PIXEL_FORMAT_RGB_565:
2113 case HAL_PIXEL_FORMAT_BGRA_8888:
2114 break;
2115 default:
2116 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
2117 }
2118
2119 native_buffer->common.incRef(&native_buffer->common);
2120 return (EGLImageKHR)native_buffer;
2121 }
2122
eglDestroyImageKHR(EGLDisplay dpy,EGLImageKHR img)2123 EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img)
2124 {
2125 if (egl_display_t::is_valid(dpy) == EGL_FALSE) {
2126 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
2127 }
2128
2129 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)img;
2130
2131 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC)
2132 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2133
2134 if (native_buffer->common.version != sizeof(ANativeWindowBuffer))
2135 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2136
2137 native_buffer->common.decRef(&native_buffer->common);
2138
2139 return EGL_TRUE;
2140 }
2141
2142 // ----------------------------------------------------------------------------
2143 // EGL_KHR_fence_sync
2144 // ----------------------------------------------------------------------------
2145
2146 #define FENCE_SYNC_HANDLE ((EGLSyncKHR)0xFE4CE)
2147
eglCreateSyncKHR(EGLDisplay dpy,EGLenum type,const EGLint * attrib_list)2148 EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type,
2149 const EGLint *attrib_list)
2150 {
2151 if (egl_display_t::is_valid(dpy) == EGL_FALSE) {
2152 return setError(EGL_BAD_DISPLAY, EGL_NO_SYNC_KHR);
2153 }
2154
2155 if (type != EGL_SYNC_FENCE_KHR ||
2156 (attrib_list != NULL && attrib_list[0] != EGL_NONE)) {
2157 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SYNC_KHR);
2158 }
2159
2160 if (eglGetCurrentContext() == EGL_NO_CONTEXT) {
2161 return setError(EGL_BAD_MATCH, EGL_NO_SYNC_KHR);
2162 }
2163
2164 // AGL is synchronous; nothing to do here.
2165
2166 return FENCE_SYNC_HANDLE;
2167 }
2168
eglDestroySyncKHR(EGLDisplay,EGLSyncKHR sync)2169 EGLBoolean eglDestroySyncKHR(EGLDisplay /*dpy*/, EGLSyncKHR sync)
2170 {
2171 if (sync != FENCE_SYNC_HANDLE) {
2172 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2173 }
2174
2175 return EGL_TRUE;
2176 }
2177
eglClientWaitSyncKHR(EGLDisplay,EGLSyncKHR sync,EGLint,EGLTimeKHR)2178 EGLint eglClientWaitSyncKHR(EGLDisplay /*dpy*/, EGLSyncKHR sync, EGLint /*flags*/,
2179 EGLTimeKHR /*timeout*/)
2180 {
2181 if (sync != FENCE_SYNC_HANDLE) {
2182 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2183 }
2184
2185 return EGL_CONDITION_SATISFIED_KHR;
2186 }
2187
eglGetSyncAttribKHR(EGLDisplay,EGLSyncKHR sync,EGLint attribute,EGLint * value)2188 EGLBoolean eglGetSyncAttribKHR(EGLDisplay /*dpy*/, EGLSyncKHR sync,
2189 EGLint attribute, EGLint *value)
2190 {
2191 if (sync != FENCE_SYNC_HANDLE) {
2192 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2193 }
2194
2195 switch (attribute) {
2196 case EGL_SYNC_TYPE_KHR:
2197 *value = EGL_SYNC_FENCE_KHR;
2198 return EGL_TRUE;
2199 case EGL_SYNC_STATUS_KHR:
2200 *value = EGL_SIGNALED_KHR;
2201 return EGL_TRUE;
2202 case EGL_SYNC_CONDITION_KHR:
2203 *value = EGL_SYNC_PRIOR_COMMANDS_COMPLETE_KHR;
2204 return EGL_TRUE;
2205 default:
2206 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
2207 }
2208 }
2209
2210 // ----------------------------------------------------------------------------
2211 // ANDROID extensions
2212 // ----------------------------------------------------------------------------
2213
eglSetSwapRectangleANDROID(EGLDisplay dpy,EGLSurface draw,EGLint left,EGLint top,EGLint width,EGLint height)2214 EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw,
2215 EGLint left, EGLint top, EGLint width, EGLint height)
2216 {
2217 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
2218 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
2219
2220 egl_surface_t* d = static_cast<egl_surface_t*>(draw);
2221 if (!d->isValid())
2222 return setError(EGL_BAD_SURFACE, EGL_FALSE);
2223 if (d->dpy != dpy)
2224 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
2225
2226 // post the surface
2227 d->setSwapRectangle(left, top, width, height);
2228
2229 return EGL_TRUE;
2230 }
2231