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 <errno.h>
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <string.h>
23 #include <unistd.h>
24 #include <fcntl.h>
25 #include <sys/ioctl.h>
26 #include <sys/types.h>
27 #include <sys/mman.h>
28
29 #include <cutils/log.h>
30 #include <cutils/atomic.h>
31
32 #include <utils/threads.h>
33
34 #include <EGL/egl.h>
35 #include <EGL/eglext.h>
36 #include <GLES/gl.h>
37 #include <GLES/glext.h>
38
39 #include <pixelflinger/format.h>
40 #include <pixelflinger/pixelflinger.h>
41
42 #include <private/ui/android_natives_priv.h>
43
44 #include "context.h"
45 #include "state.h"
46 #include "texture.h"
47 #include "matrix.h"
48
49 #undef NELEM
50 #define NELEM(x) (sizeof(x)/sizeof(*(x)))
51
52 // ----------------------------------------------------------------------------
53 namespace android {
54 // ----------------------------------------------------------------------------
55
56 const unsigned int NUM_DISPLAYS = 1;
57
58 static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER;
59 static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER;
60 static pthread_key_t gEGLErrorKey = -1;
61 #ifndef HAVE_ANDROID_OS
62 namespace gl {
63 pthread_key_t gGLKey = -1;
64 }; // namespace gl
65 #endif
66
67 template<typename T>
setError(GLint error,T returnValue)68 static T setError(GLint error, T returnValue) {
69 if (ggl_unlikely(gEGLErrorKey == -1)) {
70 pthread_mutex_lock(&gErrorKeyMutex);
71 if (gEGLErrorKey == -1)
72 pthread_key_create(&gEGLErrorKey, NULL);
73 pthread_mutex_unlock(&gErrorKeyMutex);
74 }
75 pthread_setspecific(gEGLErrorKey, (void*)error);
76 return returnValue;
77 }
78
getError()79 static GLint getError() {
80 if (ggl_unlikely(gEGLErrorKey == -1))
81 return EGL_SUCCESS;
82 GLint error = (GLint)pthread_getspecific(gEGLErrorKey);
83 if (error == 0) {
84 // The TLS key has been created by another thread, but the value for
85 // this thread has not been initialized.
86 return EGL_SUCCESS;
87 }
88 pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS);
89 return error;
90 }
91
92 // ----------------------------------------------------------------------------
93
94 struct egl_display_t
95 {
egl_display_tandroid::egl_display_t96 egl_display_t() : type(0), initialized(0) { }
97
98 static egl_display_t& get_display(EGLDisplay dpy);
99
is_validandroid::egl_display_t100 static EGLBoolean is_valid(EGLDisplay dpy) {
101 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE;
102 }
103
104 NativeDisplayType type;
105 volatile int32_t initialized;
106 };
107
108 static egl_display_t gDisplays[NUM_DISPLAYS];
109
get_display(EGLDisplay dpy)110 egl_display_t& egl_display_t::get_display(EGLDisplay dpy) {
111 return gDisplays[uintptr_t(dpy)-1U];
112 }
113
114 struct egl_context_t {
115 enum {
116 IS_CURRENT = 0x00010000,
117 NEVER_CURRENT = 0x00020000
118 };
119 uint32_t flags;
120 EGLDisplay dpy;
121 EGLConfig config;
122 EGLSurface read;
123 EGLSurface draw;
124
contextandroid::egl_context_t125 static inline egl_context_t* context(EGLContext ctx) {
126 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx);
127 return static_cast<egl_context_t*>(gl->rasterizer.base);
128 }
129 };
130
131 // ----------------------------------------------------------------------------
132
133 struct egl_surface_t
134 {
135 enum {
136 PAGE_FLIP = 0x00000001,
137 MAGIC = 0x31415265
138 };
139
140 uint32_t magic;
141 EGLDisplay dpy;
142 EGLConfig config;
143 EGLContext ctx;
144
145 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat);
146 virtual ~egl_surface_t();
147 bool isValid() const;
148 virtual bool initCheck() const = 0;
149
150 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0;
151 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0;
connectandroid::egl_surface_t152 virtual EGLBoolean connect() { return EGL_TRUE; }
disconnectandroid::egl_surface_t153 virtual void disconnect() {}
154 virtual EGLint getWidth() const = 0;
155 virtual EGLint getHeight() const = 0;
156
157 virtual EGLint getHorizontalResolution() const;
158 virtual EGLint getVerticalResolution() const;
159 virtual EGLint getRefreshRate() const;
160 virtual EGLint getSwapBehavior() const;
161 virtual EGLBoolean swapBuffers();
162 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h);
163 protected:
164 GGLSurface depth;
165 };
166
egl_surface_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat)167 egl_surface_t::egl_surface_t(EGLDisplay dpy,
168 EGLConfig config,
169 int32_t depthFormat)
170 : magic(MAGIC), dpy(dpy), config(config), ctx(0)
171 {
172 depth.version = sizeof(GGLSurface);
173 depth.data = 0;
174 depth.format = depthFormat;
175 }
~egl_surface_t()176 egl_surface_t::~egl_surface_t()
177 {
178 magic = 0;
179 free(depth.data);
180 }
isValid() const181 bool egl_surface_t::isValid() const {
182 LOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this);
183 return magic == MAGIC;
184 }
185
swapBuffers()186 EGLBoolean egl_surface_t::swapBuffers() {
187 return EGL_FALSE;
188 }
getHorizontalResolution() const189 EGLint egl_surface_t::getHorizontalResolution() const {
190 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
191 }
getVerticalResolution() const192 EGLint egl_surface_t::getVerticalResolution() const {
193 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
194 }
getRefreshRate() const195 EGLint egl_surface_t::getRefreshRate() const {
196 return (60 * EGL_DISPLAY_SCALING);
197 }
getSwapBehavior() const198 EGLint egl_surface_t::getSwapBehavior() const {
199 return EGL_BUFFER_PRESERVED;
200 }
setSwapRectangle(EGLint l,EGLint t,EGLint w,EGLint h)201 EGLBoolean egl_surface_t::setSwapRectangle(
202 EGLint l, EGLint t, EGLint w, EGLint h)
203 {
204 return EGL_FALSE;
205 }
206
207 // ----------------------------------------------------------------------------
208
209 struct egl_window_surface_v2_t : public egl_surface_t
210 {
211 egl_window_surface_v2_t(
212 EGLDisplay dpy, EGLConfig config,
213 int32_t depthFormat,
214 ANativeWindow* window);
215
216 ~egl_window_surface_v2_t();
217
initCheckandroid::egl_window_surface_v2_t218 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails
219 virtual EGLBoolean swapBuffers();
220 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
221 virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
222 virtual EGLBoolean connect();
223 virtual void disconnect();
getWidthandroid::egl_window_surface_v2_t224 virtual EGLint getWidth() const { return width; }
getHeightandroid::egl_window_surface_v2_t225 virtual EGLint getHeight() const { return height; }
226 virtual EGLint getHorizontalResolution() const;
227 virtual EGLint getVerticalResolution() const;
228 virtual EGLint getRefreshRate() const;
229 virtual EGLint getSwapBehavior() const;
230 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h);
231
232 private:
233 status_t lock(ANativeWindowBuffer* buf, int usage, void** vaddr);
234 status_t unlock(ANativeWindowBuffer* buf);
235 ANativeWindow* nativeWindow;
236 ANativeWindowBuffer* buffer;
237 ANativeWindowBuffer* previousBuffer;
238 gralloc_module_t const* module;
239 int width;
240 int height;
241 void* bits;
242 GGLFormat const* pixelFormatTable;
243
244 struct Rect {
Rectandroid::egl_window_surface_v2_t::Rect245 inline Rect() { };
Rectandroid::egl_window_surface_v2_t::Rect246 inline Rect(int32_t w, int32_t h)
247 : left(0), top(0), right(w), bottom(h) { }
Rectandroid::egl_window_surface_v2_t::Rect248 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b)
249 : left(l), top(t), right(r), bottom(b) { }
andSelfandroid::egl_window_surface_v2_t::Rect250 Rect& andSelf(const Rect& r) {
251 left = max(left, r.left);
252 top = max(top, r.top);
253 right = min(right, r.right);
254 bottom = min(bottom, r.bottom);
255 return *this;
256 }
isEmptyandroid::egl_window_surface_v2_t::Rect257 bool isEmpty() const {
258 return (left>=right || top>=bottom);
259 }
dumpandroid::egl_window_surface_v2_t::Rect260 void dump(char const* what) {
261 LOGD("%s { %5d, %5d, w=%5d, h=%5d }",
262 what, left, top, right-left, bottom-top);
263 }
264
265 int32_t left;
266 int32_t top;
267 int32_t right;
268 int32_t bottom;
269 };
270
271 struct Region {
Regionandroid::egl_window_surface_v2_t::Region272 inline Region() : count(0) { }
273 typedef Rect const* const_iterator;
beginandroid::egl_window_surface_v2_t::Region274 const_iterator begin() const { return storage; }
endandroid::egl_window_surface_v2_t::Region275 const_iterator end() const { return storage+count; }
subtractandroid::egl_window_surface_v2_t::Region276 static Region subtract(const Rect& lhs, const Rect& rhs) {
277 Region reg;
278 Rect* storage = reg.storage;
279 if (!lhs.isEmpty()) {
280 if (lhs.top < rhs.top) { // top rect
281 storage->left = lhs.left;
282 storage->top = lhs.top;
283 storage->right = lhs.right;
284 storage->bottom = rhs.top;
285 storage++;
286 }
287 const int32_t top = max(lhs.top, rhs.top);
288 const int32_t bot = min(lhs.bottom, rhs.bottom);
289 if (top < bot) {
290 if (lhs.left < rhs.left) { // left-side rect
291 storage->left = lhs.left;
292 storage->top = top;
293 storage->right = rhs.left;
294 storage->bottom = bot;
295 storage++;
296 }
297 if (lhs.right > rhs.right) { // right-side rect
298 storage->left = rhs.right;
299 storage->top = top;
300 storage->right = lhs.right;
301 storage->bottom = bot;
302 storage++;
303 }
304 }
305 if (lhs.bottom > rhs.bottom) { // bottom rect
306 storage->left = lhs.left;
307 storage->top = rhs.bottom;
308 storage->right = lhs.right;
309 storage->bottom = lhs.bottom;
310 storage++;
311 }
312 reg.count = storage - reg.storage;
313 }
314 return reg;
315 }
isEmptyandroid::egl_window_surface_v2_t::Region316 bool isEmpty() const {
317 return count<=0;
318 }
319 private:
320 Rect storage[4];
321 ssize_t count;
322 };
323
324 void copyBlt(
325 ANativeWindowBuffer* dst, void* dst_vaddr,
326 ANativeWindowBuffer* src, void const* src_vaddr,
327 const Region& clip);
328
329 Rect dirtyRegion;
330 Rect oldDirtyRegion;
331 };
332
egl_window_surface_v2_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat,ANativeWindow * window)333 egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy,
334 EGLConfig config,
335 int32_t depthFormat,
336 ANativeWindow* window)
337 : egl_surface_t(dpy, config, depthFormat),
338 nativeWindow(window), buffer(0), previousBuffer(0), module(0),
339 bits(NULL)
340 {
341 hw_module_t const* pModule;
342 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule);
343 module = reinterpret_cast<gralloc_module_t const*>(pModule);
344
345 pixelFormatTable = gglGetPixelFormatTable();
346
347 // keep a reference on the window
348 nativeWindow->common.incRef(&nativeWindow->common);
349 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width);
350 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height);
351 }
352
~egl_window_surface_v2_t()353 egl_window_surface_v2_t::~egl_window_surface_v2_t() {
354 if (buffer) {
355 buffer->common.decRef(&buffer->common);
356 }
357 if (previousBuffer) {
358 previousBuffer->common.decRef(&previousBuffer->common);
359 }
360 nativeWindow->common.decRef(&nativeWindow->common);
361 }
362
connect()363 EGLBoolean egl_window_surface_v2_t::connect()
364 {
365 // we're intending to do software rendering
366 native_window_set_usage(nativeWindow,
367 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
368
369 // dequeue a buffer
370 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) {
371 return setError(EGL_BAD_ALLOC, EGL_FALSE);
372 }
373
374 // allocate a corresponding depth-buffer
375 width = buffer->width;
376 height = buffer->height;
377 if (depth.format) {
378 depth.width = width;
379 depth.height = height;
380 depth.stride = depth.width; // use the width here
381 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
382 if (depth.data == 0) {
383 return setError(EGL_BAD_ALLOC, EGL_FALSE);
384 }
385 }
386
387 // keep a reference on the buffer
388 buffer->common.incRef(&buffer->common);
389
390 // Lock the buffer
391 nativeWindow->lockBuffer(nativeWindow, buffer);
392 // pin the buffer down
393 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN |
394 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) {
395 LOGE("connect() failed to lock buffer %p (%ux%u)",
396 buffer, buffer->width, buffer->height);
397 return setError(EGL_BAD_ACCESS, EGL_FALSE);
398 // FIXME: we should make sure we're not accessing the buffer anymore
399 }
400 return EGL_TRUE;
401 }
402
disconnect()403 void egl_window_surface_v2_t::disconnect()
404 {
405 if (buffer && bits) {
406 bits = NULL;
407 unlock(buffer);
408 }
409 // enqueue the last frame
410 nativeWindow->queueBuffer(nativeWindow, buffer);
411 if (buffer) {
412 buffer->common.decRef(&buffer->common);
413 buffer = 0;
414 }
415 if (previousBuffer) {
416 previousBuffer->common.decRef(&previousBuffer->common);
417 previousBuffer = 0;
418 }
419 }
420
lock(ANativeWindowBuffer * buf,int usage,void ** vaddr)421 status_t egl_window_surface_v2_t::lock(
422 ANativeWindowBuffer* buf, int usage, void** vaddr)
423 {
424 int err;
425
426 err = module->lock(module, buf->handle,
427 usage, 0, 0, buf->width, buf->height, vaddr);
428
429 return err;
430 }
431
unlock(ANativeWindowBuffer * buf)432 status_t egl_window_surface_v2_t::unlock(ANativeWindowBuffer* buf)
433 {
434 if (!buf) return BAD_VALUE;
435 int err = NO_ERROR;
436
437 err = module->unlock(module, buf->handle);
438
439 return err;
440 }
441
copyBlt(ANativeWindowBuffer * dst,void * dst_vaddr,ANativeWindowBuffer * src,void const * src_vaddr,const Region & clip)442 void egl_window_surface_v2_t::copyBlt(
443 ANativeWindowBuffer* dst, void* dst_vaddr,
444 ANativeWindowBuffer* src, void const* src_vaddr,
445 const Region& clip)
446 {
447 // NOTE: dst and src must be the same format
448
449 Region::const_iterator cur = clip.begin();
450 Region::const_iterator end = clip.end();
451
452 const size_t bpp = pixelFormatTable[src->format].size;
453 const size_t dbpr = dst->stride * bpp;
454 const size_t sbpr = src->stride * bpp;
455
456 uint8_t const * const src_bits = (uint8_t const *)src_vaddr;
457 uint8_t * const dst_bits = (uint8_t *)dst_vaddr;
458
459 while (cur != end) {
460 const Rect& r(*cur++);
461 ssize_t w = r.right - r.left;
462 ssize_t h = r.bottom - r.top;
463 if (w <= 0 || h<=0) continue;
464 size_t size = w * bpp;
465 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp;
466 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp;
467 if (dbpr==sbpr && size==sbpr) {
468 size *= h;
469 h = 1;
470 }
471 do {
472 memcpy(d, s, size);
473 d += dbpr;
474 s += sbpr;
475 } while (--h > 0);
476 }
477 }
478
swapBuffers()479 EGLBoolean egl_window_surface_v2_t::swapBuffers()
480 {
481 if (!buffer) {
482 return setError(EGL_BAD_ACCESS, EGL_FALSE);
483 }
484
485 /*
486 * Handle eglSetSwapRectangleANDROID()
487 * We copyback from the front buffer
488 */
489 if (!dirtyRegion.isEmpty()) {
490 dirtyRegion.andSelf(Rect(buffer->width, buffer->height));
491 if (previousBuffer) {
492 // This was const Region copyBack, but that causes an
493 // internal compile error on simulator builds
494 /*const*/ Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion));
495 if (!copyBack.isEmpty()) {
496 void* prevBits;
497 if (lock(previousBuffer,
498 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) {
499 // copy from previousBuffer to buffer
500 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack);
501 unlock(previousBuffer);
502 }
503 }
504 }
505 oldDirtyRegion = dirtyRegion;
506 }
507
508 if (previousBuffer) {
509 previousBuffer->common.decRef(&previousBuffer->common);
510 previousBuffer = 0;
511 }
512
513 unlock(buffer);
514 previousBuffer = buffer;
515 nativeWindow->queueBuffer(nativeWindow, buffer);
516 buffer = 0;
517
518 // dequeue a new buffer
519 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) == NO_ERROR) {
520
521 // TODO: lockBuffer should rather be executed when the very first
522 // direct rendering occurs.
523 nativeWindow->lockBuffer(nativeWindow, buffer);
524
525 // reallocate the depth-buffer if needed
526 if ((width != buffer->width) || (height != buffer->height)) {
527 // TODO: we probably should reset the swap rect here
528 // if the window size has changed
529 width = buffer->width;
530 height = buffer->height;
531 if (depth.data) {
532 free(depth.data);
533 depth.width = width;
534 depth.height = height;
535 depth.stride = buffer->stride;
536 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
537 if (depth.data == 0) {
538 setError(EGL_BAD_ALLOC, EGL_FALSE);
539 return EGL_FALSE;
540 }
541 }
542 }
543
544 // keep a reference on the buffer
545 buffer->common.incRef(&buffer->common);
546
547 // finally pin the buffer down
548 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN |
549 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) {
550 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)",
551 buffer, buffer->width, buffer->height);
552 return setError(EGL_BAD_ACCESS, EGL_FALSE);
553 // FIXME: we should make sure we're not accessing the buffer anymore
554 }
555 } else {
556 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
557 }
558
559 return EGL_TRUE;
560 }
561
setSwapRectangle(EGLint l,EGLint t,EGLint w,EGLint h)562 EGLBoolean egl_window_surface_v2_t::setSwapRectangle(
563 EGLint l, EGLint t, EGLint w, EGLint h)
564 {
565 dirtyRegion = Rect(l, t, l+w, t+h);
566 return EGL_TRUE;
567 }
568
bindDrawSurface(ogles_context_t * gl)569 EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl)
570 {
571 GGLSurface buffer;
572 buffer.version = sizeof(GGLSurface);
573 buffer.width = this->buffer->width;
574 buffer.height = this->buffer->height;
575 buffer.stride = this->buffer->stride;
576 buffer.data = (GGLubyte*)bits;
577 buffer.format = this->buffer->format;
578 gl->rasterizer.procs.colorBuffer(gl, &buffer);
579 if (depth.data != gl->rasterizer.state.buffers.depth.data)
580 gl->rasterizer.procs.depthBuffer(gl, &depth);
581
582 return EGL_TRUE;
583 }
bindReadSurface(ogles_context_t * gl)584 EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl)
585 {
586 GGLSurface buffer;
587 buffer.version = sizeof(GGLSurface);
588 buffer.width = this->buffer->width;
589 buffer.height = this->buffer->height;
590 buffer.stride = this->buffer->stride;
591 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!!
592 buffer.format = this->buffer->format;
593 gl->rasterizer.procs.readBuffer(gl, &buffer);
594 return EGL_TRUE;
595 }
getHorizontalResolution() const596 EGLint egl_window_surface_v2_t::getHorizontalResolution() const {
597 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
598 }
getVerticalResolution() const599 EGLint egl_window_surface_v2_t::getVerticalResolution() const {
600 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
601 }
getRefreshRate() const602 EGLint egl_window_surface_v2_t::getRefreshRate() const {
603 return (60 * EGL_DISPLAY_SCALING); // FIXME
604 }
getSwapBehavior() const605 EGLint egl_window_surface_v2_t::getSwapBehavior() const
606 {
607 /*
608 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves
609 * the content of the swapped buffer.
610 *
611 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost.
612 *
613 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED
614 * only applies to the area specified by eglSetSwapRectangleANDROID(), that
615 * is, everything outside of this area is preserved.
616 *
617 * This implementation of EGL assumes the later case.
618 *
619 */
620
621 return EGL_BUFFER_DESTROYED;
622 }
623
624 // ----------------------------------------------------------------------------
625
626 struct egl_pixmap_surface_t : public egl_surface_t
627 {
628 egl_pixmap_surface_t(
629 EGLDisplay dpy, EGLConfig config,
630 int32_t depthFormat,
631 egl_native_pixmap_t const * pixmap);
632
~egl_pixmap_surface_tandroid::egl_pixmap_surface_t633 virtual ~egl_pixmap_surface_t() { }
634
initCheckandroid::egl_pixmap_surface_t635 virtual bool initCheck() const { return !depth.format || depth.data!=0; }
636 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
637 virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
getWidthandroid::egl_pixmap_surface_t638 virtual EGLint getWidth() const { return nativePixmap.width; }
getHeightandroid::egl_pixmap_surface_t639 virtual EGLint getHeight() const { return nativePixmap.height; }
640 private:
641 egl_native_pixmap_t nativePixmap;
642 };
643
egl_pixmap_surface_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat,egl_native_pixmap_t const * pixmap)644 egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy,
645 EGLConfig config,
646 int32_t depthFormat,
647 egl_native_pixmap_t const * pixmap)
648 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap)
649 {
650 if (depthFormat) {
651 depth.width = pixmap->width;
652 depth.height = pixmap->height;
653 depth.stride = depth.width; // use the width here
654 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
655 if (depth.data == 0) {
656 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
657 }
658 }
659 }
bindDrawSurface(ogles_context_t * gl)660 EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl)
661 {
662 GGLSurface buffer;
663 buffer.version = sizeof(GGLSurface);
664 buffer.width = nativePixmap.width;
665 buffer.height = nativePixmap.height;
666 buffer.stride = nativePixmap.stride;
667 buffer.data = nativePixmap.data;
668 buffer.format = nativePixmap.format;
669
670 gl->rasterizer.procs.colorBuffer(gl, &buffer);
671 if (depth.data != gl->rasterizer.state.buffers.depth.data)
672 gl->rasterizer.procs.depthBuffer(gl, &depth);
673 return EGL_TRUE;
674 }
bindReadSurface(ogles_context_t * gl)675 EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl)
676 {
677 GGLSurface buffer;
678 buffer.version = sizeof(GGLSurface);
679 buffer.width = nativePixmap.width;
680 buffer.height = nativePixmap.height;
681 buffer.stride = nativePixmap.stride;
682 buffer.data = nativePixmap.data;
683 buffer.format = nativePixmap.format;
684 gl->rasterizer.procs.readBuffer(gl, &buffer);
685 return EGL_TRUE;
686 }
687
688 // ----------------------------------------------------------------------------
689
690 struct egl_pbuffer_surface_t : public egl_surface_t
691 {
692 egl_pbuffer_surface_t(
693 EGLDisplay dpy, EGLConfig config, int32_t depthFormat,
694 int32_t w, int32_t h, int32_t f);
695
696 virtual ~egl_pbuffer_surface_t();
697
initCheckandroid::egl_pbuffer_surface_t698 virtual bool initCheck() const { return pbuffer.data != 0; }
699 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
700 virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
getWidthandroid::egl_pbuffer_surface_t701 virtual EGLint getWidth() const { return pbuffer.width; }
getHeightandroid::egl_pbuffer_surface_t702 virtual EGLint getHeight() const { return pbuffer.height; }
703 private:
704 GGLSurface pbuffer;
705 };
706
egl_pbuffer_surface_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat,int32_t w,int32_t h,int32_t f)707 egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy,
708 EGLConfig config, int32_t depthFormat,
709 int32_t w, int32_t h, int32_t f)
710 : egl_surface_t(dpy, config, depthFormat)
711 {
712 size_t size = w*h;
713 switch (f) {
714 case GGL_PIXEL_FORMAT_A_8: size *= 1; break;
715 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break;
716 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break;
717 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break;
718 default:
719 LOGE("incompatible pixel format for pbuffer (format=%d)", f);
720 pbuffer.data = 0;
721 break;
722 }
723 pbuffer.version = sizeof(GGLSurface);
724 pbuffer.width = w;
725 pbuffer.height = h;
726 pbuffer.stride = w;
727 pbuffer.data = (GGLubyte*)malloc(size);
728 pbuffer.format = f;
729
730 if (depthFormat) {
731 depth.width = pbuffer.width;
732 depth.height = pbuffer.height;
733 depth.stride = depth.width; // use the width here
734 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
735 if (depth.data == 0) {
736 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
737 return;
738 }
739 }
740 }
~egl_pbuffer_surface_t()741 egl_pbuffer_surface_t::~egl_pbuffer_surface_t() {
742 free(pbuffer.data);
743 }
bindDrawSurface(ogles_context_t * gl)744 EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl)
745 {
746 gl->rasterizer.procs.colorBuffer(gl, &pbuffer);
747 if (depth.data != gl->rasterizer.state.buffers.depth.data)
748 gl->rasterizer.procs.depthBuffer(gl, &depth);
749 return EGL_TRUE;
750 }
bindReadSurface(ogles_context_t * gl)751 EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl)
752 {
753 gl->rasterizer.procs.readBuffer(gl, &pbuffer);
754 return EGL_TRUE;
755 }
756
757 // ----------------------------------------------------------------------------
758
759 struct config_pair_t {
760 GLint key;
761 GLint value;
762 };
763
764 struct configs_t {
765 const config_pair_t* array;
766 int size;
767 };
768
769 struct config_management_t {
770 GLint key;
771 bool (*match)(GLint reqValue, GLint confValue);
atLeastandroid::config_management_t772 static bool atLeast(GLint reqValue, GLint confValue) {
773 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue);
774 }
exactandroid::config_management_t775 static bool exact(GLint reqValue, GLint confValue) {
776 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue);
777 }
maskandroid::config_management_t778 static bool mask(GLint reqValue, GLint confValue) {
779 return (confValue & reqValue) == reqValue;
780 }
ignoreandroid::config_management_t781 static bool ignore(GLint reqValue, GLint confValue) {
782 return true;
783 }
784 };
785
786 // ----------------------------------------------------------------------------
787
788 #define VERSION_MAJOR 1
789 #define VERSION_MINOR 2
790 static char const * const gVendorString = "Google Inc.";
791 static char const * const gVersionString = "1.2 Android Driver 1.2.0";
792 static char const * const gClientApiString = "OpenGL ES";
793 static char const * const gExtensionsString =
794 "EGL_KHR_image_base "
795 // "KHR_image_pixmap "
796 "EGL_ANDROID_image_native_buffer "
797 "EGL_ANDROID_swap_rectangle "
798 ;
799
800 // ----------------------------------------------------------------------------
801
802 struct extention_map_t {
803 const char * const name;
804 __eglMustCastToProperFunctionPointerType address;
805 };
806
807 static const extention_map_t gExtentionMap[] = {
808 { "glDrawTexsOES",
809 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES },
810 { "glDrawTexiOES",
811 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES },
812 { "glDrawTexfOES",
813 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES },
814 { "glDrawTexxOES",
815 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES },
816 { "glDrawTexsvOES",
817 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES },
818 { "glDrawTexivOES",
819 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES },
820 { "glDrawTexfvOES",
821 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES },
822 { "glDrawTexxvOES",
823 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES },
824 { "glQueryMatrixxOES",
825 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES },
826 { "glEGLImageTargetTexture2DOES",
827 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES },
828 { "glEGLImageTargetRenderbufferStorageOES",
829 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES },
830 { "glClipPlanef",
831 (__eglMustCastToProperFunctionPointerType)&glClipPlanef },
832 { "glClipPlanex",
833 (__eglMustCastToProperFunctionPointerType)&glClipPlanex },
834 { "glBindBuffer",
835 (__eglMustCastToProperFunctionPointerType)&glBindBuffer },
836 { "glBufferData",
837 (__eglMustCastToProperFunctionPointerType)&glBufferData },
838 { "glBufferSubData",
839 (__eglMustCastToProperFunctionPointerType)&glBufferSubData },
840 { "glDeleteBuffers",
841 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers },
842 { "glGenBuffers",
843 (__eglMustCastToProperFunctionPointerType)&glGenBuffers },
844 { "eglCreateImageKHR",
845 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR },
846 { "eglDestroyImageKHR",
847 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR },
848 { "eglSetSwapRectangleANDROID",
849 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID },
850 };
851
852 /*
853 * In the lists below, attributes names MUST be sorted.
854 * Additionally, all configs must be sorted according to
855 * the EGL specification.
856 */
857
858 static config_pair_t const config_base_attribute_list[] = {
859 { EGL_STENCIL_SIZE, 0 },
860 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG },
861 { EGL_LEVEL, 0 },
862 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS },
863 { EGL_MAX_PBUFFER_PIXELS,
864 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS },
865 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS },
866 { EGL_NATIVE_RENDERABLE, EGL_TRUE },
867 { EGL_NATIVE_VISUAL_ID, 0 },
868 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 },
869 { EGL_SAMPLES, 0 },
870 { EGL_SAMPLE_BUFFERS, 0 },
871 { EGL_TRANSPARENT_TYPE, EGL_NONE },
872 { EGL_TRANSPARENT_BLUE_VALUE, 0 },
873 { EGL_TRANSPARENT_GREEN_VALUE, 0 },
874 { EGL_TRANSPARENT_RED_VALUE, 0 },
875 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE },
876 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE },
877 { EGL_MIN_SWAP_INTERVAL, 1 },
878 { EGL_MAX_SWAP_INTERVAL, 1 },
879 { EGL_LUMINANCE_SIZE, 0 },
880 { EGL_ALPHA_MASK_SIZE, 0 },
881 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER },
882 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT },
883 { EGL_CONFORMANT, 0 }
884 };
885
886 // These configs can override the base attribute list
887 // NOTE: when adding a config here, don't forget to update eglCreate*Surface()
888
889 // 565 configs
890 static config_pair_t const config_0_attribute_list[] = {
891 { EGL_BUFFER_SIZE, 16 },
892 { EGL_ALPHA_SIZE, 0 },
893 { EGL_BLUE_SIZE, 5 },
894 { EGL_GREEN_SIZE, 6 },
895 { EGL_RED_SIZE, 5 },
896 { EGL_DEPTH_SIZE, 0 },
897 { EGL_CONFIG_ID, 0 },
898 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 },
899 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
900 };
901
902 static config_pair_t const config_1_attribute_list[] = {
903 { EGL_BUFFER_SIZE, 16 },
904 { EGL_ALPHA_SIZE, 0 },
905 { EGL_BLUE_SIZE, 5 },
906 { EGL_GREEN_SIZE, 6 },
907 { EGL_RED_SIZE, 5 },
908 { EGL_DEPTH_SIZE, 16 },
909 { EGL_CONFIG_ID, 1 },
910 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 },
911 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
912 };
913
914 // RGB 888 configs
915 static config_pair_t const config_2_attribute_list[] = {
916 { EGL_BUFFER_SIZE, 32 },
917 { EGL_ALPHA_SIZE, 0 },
918 { EGL_BLUE_SIZE, 8 },
919 { EGL_GREEN_SIZE, 8 },
920 { EGL_RED_SIZE, 8 },
921 { EGL_DEPTH_SIZE, 0 },
922 { EGL_CONFIG_ID, 6 },
923 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 },
924 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
925 };
926
927 static config_pair_t const config_3_attribute_list[] = {
928 { EGL_BUFFER_SIZE, 32 },
929 { EGL_ALPHA_SIZE, 0 },
930 { EGL_BLUE_SIZE, 8 },
931 { EGL_GREEN_SIZE, 8 },
932 { EGL_RED_SIZE, 8 },
933 { EGL_DEPTH_SIZE, 16 },
934 { EGL_CONFIG_ID, 7 },
935 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 },
936 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
937 };
938
939 // 8888 configs
940 static config_pair_t const config_4_attribute_list[] = {
941 { EGL_BUFFER_SIZE, 32 },
942 { EGL_ALPHA_SIZE, 8 },
943 { EGL_BLUE_SIZE, 8 },
944 { EGL_GREEN_SIZE, 8 },
945 { EGL_RED_SIZE, 8 },
946 { EGL_DEPTH_SIZE, 0 },
947 { EGL_CONFIG_ID, 2 },
948 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 },
949 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
950 };
951
952 static config_pair_t const config_5_attribute_list[] = {
953 { EGL_BUFFER_SIZE, 32 },
954 { EGL_ALPHA_SIZE, 8 },
955 { EGL_BLUE_SIZE, 8 },
956 { EGL_GREEN_SIZE, 8 },
957 { EGL_RED_SIZE, 8 },
958 { EGL_DEPTH_SIZE, 16 },
959 { EGL_CONFIG_ID, 3 },
960 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 },
961 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
962 };
963
964 // A8 configs
965 static config_pair_t const config_6_attribute_list[] = {
966 { EGL_BUFFER_SIZE, 8 },
967 { EGL_ALPHA_SIZE, 8 },
968 { EGL_BLUE_SIZE, 0 },
969 { EGL_GREEN_SIZE, 0 },
970 { EGL_RED_SIZE, 0 },
971 { EGL_DEPTH_SIZE, 0 },
972 { EGL_CONFIG_ID, 4 },
973 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 },
974 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
975 };
976
977 static config_pair_t const config_7_attribute_list[] = {
978 { EGL_BUFFER_SIZE, 8 },
979 { EGL_ALPHA_SIZE, 8 },
980 { EGL_BLUE_SIZE, 0 },
981 { EGL_GREEN_SIZE, 0 },
982 { EGL_RED_SIZE, 0 },
983 { EGL_DEPTH_SIZE, 16 },
984 { EGL_CONFIG_ID, 5 },
985 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 },
986 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
987 };
988
989 static configs_t const gConfigs[] = {
990 { config_0_attribute_list, NELEM(config_0_attribute_list) },
991 { config_1_attribute_list, NELEM(config_1_attribute_list) },
992 { config_2_attribute_list, NELEM(config_2_attribute_list) },
993 { config_3_attribute_list, NELEM(config_3_attribute_list) },
994 { config_4_attribute_list, NELEM(config_4_attribute_list) },
995 { config_5_attribute_list, NELEM(config_5_attribute_list) },
996 { config_6_attribute_list, NELEM(config_6_attribute_list) },
997 { config_7_attribute_list, NELEM(config_7_attribute_list) },
998 };
999
1000 static config_management_t const gConfigManagement[] = {
1001 { EGL_BUFFER_SIZE, config_management_t::atLeast },
1002 { EGL_ALPHA_SIZE, config_management_t::atLeast },
1003 { EGL_BLUE_SIZE, config_management_t::atLeast },
1004 { EGL_GREEN_SIZE, config_management_t::atLeast },
1005 { EGL_RED_SIZE, config_management_t::atLeast },
1006 { EGL_DEPTH_SIZE, config_management_t::atLeast },
1007 { EGL_STENCIL_SIZE, config_management_t::atLeast },
1008 { EGL_CONFIG_CAVEAT, config_management_t::exact },
1009 { EGL_CONFIG_ID, config_management_t::exact },
1010 { EGL_LEVEL, config_management_t::exact },
1011 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::ignore },
1012 { EGL_MAX_PBUFFER_PIXELS, config_management_t::ignore },
1013 { EGL_MAX_PBUFFER_WIDTH, config_management_t::ignore },
1014 { EGL_NATIVE_RENDERABLE, config_management_t::exact },
1015 { EGL_NATIVE_VISUAL_ID, config_management_t::ignore },
1016 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact },
1017 { EGL_SAMPLES, config_management_t::exact },
1018 { EGL_SAMPLE_BUFFERS, config_management_t::exact },
1019 { EGL_SURFACE_TYPE, config_management_t::mask },
1020 { EGL_TRANSPARENT_TYPE, config_management_t::exact },
1021 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact },
1022 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact },
1023 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact },
1024 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact },
1025 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact },
1026 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact },
1027 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact },
1028 { EGL_LUMINANCE_SIZE, config_management_t::atLeast },
1029 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast },
1030 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact },
1031 { EGL_RENDERABLE_TYPE, config_management_t::mask },
1032 { EGL_CONFORMANT, config_management_t::mask }
1033 };
1034
1035
1036 static config_pair_t const config_defaults[] = {
1037 // attributes that are not specified are simply ignored, if a particular
1038 // one needs not be ignored, it must be specified here, eg:
1039 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT },
1040 };
1041
1042 // ----------------------------------------------------------------------------
1043
getConfigFormatInfo(EGLint configID,int32_t & pixelFormat,int32_t & depthFormat)1044 static status_t getConfigFormatInfo(EGLint configID,
1045 int32_t& pixelFormat, int32_t& depthFormat)
1046 {
1047 switch(configID) {
1048 case 0:
1049 pixelFormat = GGL_PIXEL_FORMAT_RGB_565;
1050 depthFormat = 0;
1051 break;
1052 case 1:
1053 pixelFormat = GGL_PIXEL_FORMAT_RGB_565;
1054 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1055 break;
1056 case 2:
1057 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888;
1058 depthFormat = 0;
1059 break;
1060 case 3:
1061 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888;
1062 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1063 break;
1064 case 4:
1065 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
1066 depthFormat = 0;
1067 break;
1068 case 5:
1069 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
1070 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1071 break;
1072 case 6:
1073 pixelFormat = GGL_PIXEL_FORMAT_A_8;
1074 depthFormat = 0;
1075 break;
1076 case 7:
1077 pixelFormat = GGL_PIXEL_FORMAT_A_8;
1078 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1079 break;
1080 default:
1081 return NAME_NOT_FOUND;
1082 }
1083 return NO_ERROR;
1084 }
1085
1086 // ----------------------------------------------------------------------------
1087
1088 template<typename T>
binarySearch(T const sortedArray[],int first,int last,EGLint key)1089 static int binarySearch(T const sortedArray[], int first, int last, EGLint key)
1090 {
1091 while (first <= last) {
1092 int mid = (first + last) / 2;
1093 if (key > sortedArray[mid].key) {
1094 first = mid + 1;
1095 } else if (key < sortedArray[mid].key) {
1096 last = mid - 1;
1097 } else {
1098 return mid;
1099 }
1100 }
1101 return -1;
1102 }
1103
isAttributeMatching(int i,EGLint attr,EGLint val)1104 static int isAttributeMatching(int i, EGLint attr, EGLint val)
1105 {
1106 // look for the attribute in all of our configs
1107 config_pair_t const* configFound = gConfigs[i].array;
1108 int index = binarySearch<config_pair_t>(
1109 gConfigs[i].array,
1110 0, gConfigs[i].size-1,
1111 attr);
1112 if (index < 0) {
1113 configFound = config_base_attribute_list;
1114 index = binarySearch<config_pair_t>(
1115 config_base_attribute_list,
1116 0, NELEM(config_base_attribute_list)-1,
1117 attr);
1118 }
1119 if (index >= 0) {
1120 // attribute found, check if this config could match
1121 int cfgMgtIndex = binarySearch<config_management_t>(
1122 gConfigManagement,
1123 0, NELEM(gConfigManagement)-1,
1124 attr);
1125 if (cfgMgtIndex >= 0) {
1126 bool match = gConfigManagement[cfgMgtIndex].match(
1127 val, configFound[index].value);
1128 if (match) {
1129 // this config matches
1130 return 1;
1131 }
1132 } else {
1133 // attribute not found. this should NEVER happen.
1134 }
1135 } else {
1136 // error, this attribute doesn't exist
1137 }
1138 return 0;
1139 }
1140
makeCurrent(ogles_context_t * gl)1141 static int makeCurrent(ogles_context_t* gl)
1142 {
1143 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific();
1144 if (gl) {
1145 egl_context_t* c = egl_context_t::context(gl);
1146 if (c->flags & egl_context_t::IS_CURRENT) {
1147 if (current != gl) {
1148 // it is an error to set a context current, if it's already
1149 // current to another thread
1150 return -1;
1151 }
1152 } else {
1153 if (current) {
1154 // mark the current context as not current, and flush
1155 glFlush();
1156 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT;
1157 }
1158 }
1159 if (!(c->flags & egl_context_t::IS_CURRENT)) {
1160 // The context is not current, make it current!
1161 setGlThreadSpecific(gl);
1162 c->flags |= egl_context_t::IS_CURRENT;
1163 }
1164 } else {
1165 if (current) {
1166 // mark the current context as not current, and flush
1167 glFlush();
1168 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT;
1169 }
1170 // this thread has no context attached to it
1171 setGlThreadSpecific(0);
1172 }
1173 return 0;
1174 }
1175
getConfigAttrib(EGLDisplay dpy,EGLConfig config,EGLint attribute,EGLint * value)1176 static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config,
1177 EGLint attribute, EGLint *value)
1178 {
1179 size_t numConfigs = NELEM(gConfigs);
1180 int index = (int)config;
1181 if (uint32_t(index) >= numConfigs)
1182 return setError(EGL_BAD_CONFIG, EGL_FALSE);
1183
1184 int attrIndex;
1185 attrIndex = binarySearch<config_pair_t>(
1186 gConfigs[index].array,
1187 0, gConfigs[index].size-1,
1188 attribute);
1189 if (attrIndex>=0) {
1190 *value = gConfigs[index].array[attrIndex].value;
1191 return EGL_TRUE;
1192 }
1193
1194 attrIndex = binarySearch<config_pair_t>(
1195 config_base_attribute_list,
1196 0, NELEM(config_base_attribute_list)-1,
1197 attribute);
1198 if (attrIndex>=0) {
1199 *value = config_base_attribute_list[attrIndex].value;
1200 return EGL_TRUE;
1201 }
1202 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
1203 }
1204
createWindowSurface(EGLDisplay dpy,EGLConfig config,NativeWindowType window,const EGLint * attrib_list)1205 static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config,
1206 NativeWindowType window, const EGLint *attrib_list)
1207 {
1208 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1209 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1210 if (window == 0)
1211 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1212
1213 EGLint surfaceType;
1214 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
1215 return EGL_FALSE;
1216
1217 if (!(surfaceType & EGL_WINDOW_BIT))
1218 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1219
1220 if (static_cast<ANativeWindow*>(window)->common.magic !=
1221 ANDROID_NATIVE_WINDOW_MAGIC) {
1222 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
1223 }
1224
1225 EGLint configID;
1226 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
1227 return EGL_FALSE;
1228
1229 int32_t depthFormat;
1230 int32_t pixelFormat;
1231 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
1232 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1233 }
1234
1235 // FIXME: we don't have access to the pixelFormat here just yet.
1236 // (it's possible that the surface is not fully initialized)
1237 // maybe this should be done after the page-flip
1238 //if (EGLint(info.format) != pixelFormat)
1239 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1240
1241 egl_surface_t* surface;
1242 surface = new egl_window_surface_v2_t(dpy, config, depthFormat,
1243 static_cast<ANativeWindow*>(window));
1244
1245 if (!surface->initCheck()) {
1246 // there was a problem in the ctor, the error
1247 // flag has been set.
1248 delete surface;
1249 surface = 0;
1250 }
1251 return surface;
1252 }
1253
createPixmapSurface(EGLDisplay dpy,EGLConfig config,NativePixmapType pixmap,const EGLint * attrib_list)1254 static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config,
1255 NativePixmapType pixmap, const EGLint *attrib_list)
1256 {
1257 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1258 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1259 if (pixmap == 0)
1260 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1261
1262 EGLint surfaceType;
1263 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
1264 return EGL_FALSE;
1265
1266 if (!(surfaceType & EGL_PIXMAP_BIT))
1267 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1268
1269 if (static_cast<egl_native_pixmap_t*>(pixmap)->version !=
1270 sizeof(egl_native_pixmap_t)) {
1271 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE);
1272 }
1273
1274 EGLint configID;
1275 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
1276 return EGL_FALSE;
1277
1278 int32_t depthFormat;
1279 int32_t pixelFormat;
1280 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
1281 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1282 }
1283
1284 if (pixmap->format != pixelFormat)
1285 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1286
1287 egl_surface_t* surface =
1288 new egl_pixmap_surface_t(dpy, config, depthFormat,
1289 static_cast<egl_native_pixmap_t*>(pixmap));
1290
1291 if (!surface->initCheck()) {
1292 // there was a problem in the ctor, the error
1293 // flag has been set.
1294 delete surface;
1295 surface = 0;
1296 }
1297 return surface;
1298 }
1299
createPbufferSurface(EGLDisplay dpy,EGLConfig config,const EGLint * attrib_list)1300 static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config,
1301 const EGLint *attrib_list)
1302 {
1303 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1304 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1305
1306 EGLint surfaceType;
1307 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
1308 return EGL_FALSE;
1309
1310 if (!(surfaceType & EGL_PBUFFER_BIT))
1311 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1312
1313 EGLint configID;
1314 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
1315 return EGL_FALSE;
1316
1317 int32_t depthFormat;
1318 int32_t pixelFormat;
1319 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
1320 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1321 }
1322
1323 int32_t w = 0;
1324 int32_t h = 0;
1325 while (attrib_list[0]) {
1326 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1];
1327 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1];
1328 attrib_list+=2;
1329 }
1330
1331 egl_surface_t* surface =
1332 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat);
1333
1334 if (!surface->initCheck()) {
1335 // there was a problem in the ctor, the error
1336 // flag has been set.
1337 delete surface;
1338 surface = 0;
1339 }
1340 return surface;
1341 }
1342
1343 // ----------------------------------------------------------------------------
1344 }; // namespace android
1345 // ----------------------------------------------------------------------------
1346
1347 using namespace android;
1348
1349 // ----------------------------------------------------------------------------
1350 // Initialization
1351 // ----------------------------------------------------------------------------
1352
eglGetDisplay(NativeDisplayType display)1353 EGLDisplay eglGetDisplay(NativeDisplayType display)
1354 {
1355 #ifndef HAVE_ANDROID_OS
1356 // this just needs to be done once
1357 if (gGLKey == -1) {
1358 pthread_mutex_lock(&gInitMutex);
1359 if (gGLKey == -1)
1360 pthread_key_create(&gGLKey, NULL);
1361 pthread_mutex_unlock(&gInitMutex);
1362 }
1363 #endif
1364 if (display == EGL_DEFAULT_DISPLAY) {
1365 EGLDisplay dpy = (EGLDisplay)1;
1366 egl_display_t& d = egl_display_t::get_display(dpy);
1367 d.type = display;
1368 return dpy;
1369 }
1370 return EGL_NO_DISPLAY;
1371 }
1372
eglInitialize(EGLDisplay dpy,EGLint * major,EGLint * minor)1373 EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
1374 {
1375 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1376 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1377
1378 EGLBoolean res = EGL_TRUE;
1379 egl_display_t& d = egl_display_t::get_display(dpy);
1380
1381 if (android_atomic_inc(&d.initialized) == 0) {
1382 // initialize stuff here if needed
1383 //pthread_mutex_lock(&gInitMutex);
1384 //pthread_mutex_unlock(&gInitMutex);
1385 }
1386
1387 if (res == EGL_TRUE) {
1388 if (major != NULL) *major = VERSION_MAJOR;
1389 if (minor != NULL) *minor = VERSION_MINOR;
1390 }
1391 return res;
1392 }
1393
eglTerminate(EGLDisplay dpy)1394 EGLBoolean eglTerminate(EGLDisplay dpy)
1395 {
1396 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1397 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1398
1399 EGLBoolean res = EGL_TRUE;
1400 egl_display_t& d = egl_display_t::get_display(dpy);
1401 if (android_atomic_dec(&d.initialized) == 1) {
1402 // TODO: destroy all resources (surfaces, contexts, etc...)
1403 //pthread_mutex_lock(&gInitMutex);
1404 //pthread_mutex_unlock(&gInitMutex);
1405 }
1406 return res;
1407 }
1408
1409 // ----------------------------------------------------------------------------
1410 // configuration
1411 // ----------------------------------------------------------------------------
1412
eglGetConfigs(EGLDisplay dpy,EGLConfig * configs,EGLint config_size,EGLint * num_config)1413 EGLBoolean eglGetConfigs( EGLDisplay dpy,
1414 EGLConfig *configs,
1415 EGLint config_size, EGLint *num_config)
1416 {
1417 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1418 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1419
1420 GLint numConfigs = NELEM(gConfigs);
1421 if (!configs) {
1422 *num_config = numConfigs;
1423 return EGL_TRUE;
1424 }
1425 GLint i;
1426 for (i=0 ; i<numConfigs && i<config_size ; i++) {
1427 *configs++ = (EGLConfig)i;
1428 }
1429 *num_config = i;
1430 return EGL_TRUE;
1431 }
1432
eglChooseConfig(EGLDisplay dpy,const EGLint * attrib_list,EGLConfig * configs,EGLint config_size,EGLint * num_config)1433 EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list,
1434 EGLConfig *configs, EGLint config_size,
1435 EGLint *num_config)
1436 {
1437 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1438 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1439
1440 if (ggl_unlikely(num_config==0)) {
1441 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1442 }
1443
1444 if (ggl_unlikely(attrib_list==0)) {
1445 /*
1446 * A NULL attrib_list should be treated as though it was an empty
1447 * one (terminated with EGL_NONE) as defined in
1448 * section 3.4.1 "Querying Configurations" in the EGL specification.
1449 */
1450 static const EGLint dummy = EGL_NONE;
1451 attrib_list = &dummy;
1452 }
1453
1454 int numAttributes = 0;
1455 int numConfigs = NELEM(gConfigs);
1456 uint32_t possibleMatch = (1<<numConfigs)-1;
1457 while(possibleMatch && *attrib_list != EGL_NONE) {
1458 numAttributes++;
1459 EGLint attr = *attrib_list++;
1460 EGLint val = *attrib_list++;
1461 for (int i=0 ; possibleMatch && i<numConfigs ; i++) {
1462 if (!(possibleMatch & (1<<i)))
1463 continue;
1464 if (isAttributeMatching(i, attr, val) == 0) {
1465 possibleMatch &= ~(1<<i);
1466 }
1467 }
1468 }
1469
1470 // now, handle the attributes which have a useful default value
1471 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) {
1472 // see if this attribute was specified, if not, apply its
1473 // default value
1474 if (binarySearch<config_pair_t>(
1475 (config_pair_t const*)attrib_list,
1476 0, numAttributes-1,
1477 config_defaults[j].key) < 0)
1478 {
1479 for (int i=0 ; possibleMatch && i<numConfigs ; i++) {
1480 if (!(possibleMatch & (1<<i)))
1481 continue;
1482 if (isAttributeMatching(i,
1483 config_defaults[j].key,
1484 config_defaults[j].value) == 0)
1485 {
1486 possibleMatch &= ~(1<<i);
1487 }
1488 }
1489 }
1490 }
1491
1492 // return the configurations found
1493 int n=0;
1494 if (possibleMatch) {
1495 if (configs) {
1496 for (int i=0 ; config_size && i<numConfigs ; i++) {
1497 if (possibleMatch & (1<<i)) {
1498 *configs++ = (EGLConfig)i;
1499 config_size--;
1500 n++;
1501 }
1502 }
1503 } else {
1504 for (int i=0 ; i<numConfigs ; i++) {
1505 if (possibleMatch & (1<<i)) {
1506 n++;
1507 }
1508 }
1509 }
1510 }
1511 *num_config = n;
1512 return EGL_TRUE;
1513 }
1514
eglGetConfigAttrib(EGLDisplay dpy,EGLConfig config,EGLint attribute,EGLint * value)1515 EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
1516 EGLint attribute, EGLint *value)
1517 {
1518 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1519 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1520
1521 return getConfigAttrib(dpy, config, attribute, value);
1522 }
1523
1524 // ----------------------------------------------------------------------------
1525 // surfaces
1526 // ----------------------------------------------------------------------------
1527
eglCreateWindowSurface(EGLDisplay dpy,EGLConfig config,NativeWindowType window,const EGLint * attrib_list)1528 EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config,
1529 NativeWindowType window,
1530 const EGLint *attrib_list)
1531 {
1532 return createWindowSurface(dpy, config, window, attrib_list);
1533 }
1534
eglCreatePixmapSurface(EGLDisplay dpy,EGLConfig config,NativePixmapType pixmap,const EGLint * attrib_list)1535 EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config,
1536 NativePixmapType pixmap,
1537 const EGLint *attrib_list)
1538 {
1539 return createPixmapSurface(dpy, config, pixmap, attrib_list);
1540 }
1541
eglCreatePbufferSurface(EGLDisplay dpy,EGLConfig config,const EGLint * attrib_list)1542 EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config,
1543 const EGLint *attrib_list)
1544 {
1545 return createPbufferSurface(dpy, config, attrib_list);
1546 }
1547
eglDestroySurface(EGLDisplay dpy,EGLSurface eglSurface)1548 EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface)
1549 {
1550 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1551 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1552 if (eglSurface != EGL_NO_SURFACE) {
1553 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) );
1554 if (!surface->isValid())
1555 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1556 if (surface->dpy != dpy)
1557 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1558 if (surface->ctx) {
1559 // FIXME: this surface is current check what the spec says
1560 surface->disconnect();
1561 surface->ctx = 0;
1562 }
1563 delete surface;
1564 }
1565 return EGL_TRUE;
1566 }
1567
eglQuerySurface(EGLDisplay dpy,EGLSurface eglSurface,EGLint attribute,EGLint * value)1568 EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface,
1569 EGLint attribute, EGLint *value)
1570 {
1571 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1572 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1573 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface);
1574 if (!surface->isValid())
1575 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1576 if (surface->dpy != dpy)
1577 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1578
1579 EGLBoolean ret = EGL_TRUE;
1580 switch (attribute) {
1581 case EGL_CONFIG_ID:
1582 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value);
1583 break;
1584 case EGL_WIDTH:
1585 *value = surface->getWidth();
1586 break;
1587 case EGL_HEIGHT:
1588 *value = surface->getHeight();
1589 break;
1590 case EGL_LARGEST_PBUFFER:
1591 // not modified for a window or pixmap surface
1592 break;
1593 case EGL_TEXTURE_FORMAT:
1594 *value = EGL_NO_TEXTURE;
1595 break;
1596 case EGL_TEXTURE_TARGET:
1597 *value = EGL_NO_TEXTURE;
1598 break;
1599 case EGL_MIPMAP_TEXTURE:
1600 *value = EGL_FALSE;
1601 break;
1602 case EGL_MIPMAP_LEVEL:
1603 *value = 0;
1604 break;
1605 case EGL_RENDER_BUFFER:
1606 // TODO: return the real RENDER_BUFFER here
1607 *value = EGL_BACK_BUFFER;
1608 break;
1609 case EGL_HORIZONTAL_RESOLUTION:
1610 // pixel/mm * EGL_DISPLAY_SCALING
1611 *value = surface->getHorizontalResolution();
1612 break;
1613 case EGL_VERTICAL_RESOLUTION:
1614 // pixel/mm * EGL_DISPLAY_SCALING
1615 *value = surface->getVerticalResolution();
1616 break;
1617 case EGL_PIXEL_ASPECT_RATIO: {
1618 // w/h * EGL_DISPLAY_SCALING
1619 int wr = surface->getHorizontalResolution();
1620 int hr = surface->getVerticalResolution();
1621 *value = (wr * EGL_DISPLAY_SCALING) / hr;
1622 } break;
1623 case EGL_SWAP_BEHAVIOR:
1624 *value = surface->getSwapBehavior();
1625 break;
1626 default:
1627 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
1628 }
1629 return ret;
1630 }
1631
eglCreateContext(EGLDisplay dpy,EGLConfig config,EGLContext share_list,const EGLint * attrib_list)1632 EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config,
1633 EGLContext share_list, const EGLint *attrib_list)
1634 {
1635 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1636 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1637
1638 ogles_context_t* gl = ogles_init(sizeof(egl_context_t));
1639 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT);
1640
1641 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base);
1642 c->flags = egl_context_t::NEVER_CURRENT;
1643 c->dpy = dpy;
1644 c->config = config;
1645 c->read = 0;
1646 c->draw = 0;
1647 return (EGLContext)gl;
1648 }
1649
eglDestroyContext(EGLDisplay dpy,EGLContext ctx)1650 EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
1651 {
1652 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1653 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1654 egl_context_t* c = egl_context_t::context(ctx);
1655 if (c->flags & egl_context_t::IS_CURRENT)
1656 setGlThreadSpecific(0);
1657 ogles_uninit((ogles_context_t*)ctx);
1658 return EGL_TRUE;
1659 }
1660
eglMakeCurrent(EGLDisplay dpy,EGLSurface draw,EGLSurface read,EGLContext ctx)1661 EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw,
1662 EGLSurface read, EGLContext ctx)
1663 {
1664 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1665 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1666 if (draw) {
1667 egl_surface_t* s = (egl_surface_t*)draw;
1668 if (!s->isValid())
1669 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1670 if (s->dpy != dpy)
1671 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1672 // TODO: check that draw is compatible with the context
1673 }
1674 if (read && read!=draw) {
1675 egl_surface_t* s = (egl_surface_t*)read;
1676 if (!s->isValid())
1677 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1678 if (s->dpy != dpy)
1679 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1680 // TODO: check that read is compatible with the context
1681 }
1682
1683 EGLContext current_ctx = EGL_NO_CONTEXT;
1684
1685 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT))
1686 return setError(EGL_BAD_MATCH, EGL_FALSE);
1687
1688 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT))
1689 return setError(EGL_BAD_MATCH, EGL_FALSE);
1690
1691 if (ctx == EGL_NO_CONTEXT) {
1692 // if we're detaching, we need the current context
1693 current_ctx = (EGLContext)getGlThreadSpecific();
1694 } else {
1695 egl_context_t* c = egl_context_t::context(ctx);
1696 egl_surface_t* d = (egl_surface_t*)draw;
1697 egl_surface_t* r = (egl_surface_t*)read;
1698 if ((d && d->ctx && d->ctx != ctx) ||
1699 (r && r->ctx && r->ctx != ctx)) {
1700 // one of the surface is bound to a context in another thread
1701 return setError(EGL_BAD_ACCESS, EGL_FALSE);
1702 }
1703 }
1704
1705 ogles_context_t* gl = (ogles_context_t*)ctx;
1706 if (makeCurrent(gl) == 0) {
1707 if (ctx) {
1708 egl_context_t* c = egl_context_t::context(ctx);
1709 egl_surface_t* d = (egl_surface_t*)draw;
1710 egl_surface_t* r = (egl_surface_t*)read;
1711
1712 if (c->draw) {
1713 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw);
1714 s->disconnect();
1715 }
1716 if (c->read) {
1717 // FIXME: unlock/disconnect the read surface too
1718 }
1719
1720 c->draw = draw;
1721 c->read = read;
1722
1723 if (c->flags & egl_context_t::NEVER_CURRENT) {
1724 c->flags &= ~egl_context_t::NEVER_CURRENT;
1725 GLint w = 0;
1726 GLint h = 0;
1727 if (draw) {
1728 w = d->getWidth();
1729 h = d->getHeight();
1730 }
1731 ogles_surfaceport(gl, 0, 0);
1732 ogles_viewport(gl, 0, 0, w, h);
1733 ogles_scissor(gl, 0, 0, w, h);
1734 }
1735 if (d) {
1736 if (d->connect() == EGL_FALSE) {
1737 return EGL_FALSE;
1738 }
1739 d->ctx = ctx;
1740 d->bindDrawSurface(gl);
1741 }
1742 if (r) {
1743 // FIXME: lock/connect the read surface too
1744 r->ctx = ctx;
1745 r->bindReadSurface(gl);
1746 }
1747 } else {
1748 // if surfaces were bound to the context bound to this thread
1749 // mark then as unbound.
1750 if (current_ctx) {
1751 egl_context_t* c = egl_context_t::context(current_ctx);
1752 egl_surface_t* d = (egl_surface_t*)c->draw;
1753 egl_surface_t* r = (egl_surface_t*)c->read;
1754 if (d) {
1755 c->draw = 0;
1756 d->ctx = EGL_NO_CONTEXT;
1757 d->disconnect();
1758 }
1759 if (r) {
1760 c->read = 0;
1761 r->ctx = EGL_NO_CONTEXT;
1762 // FIXME: unlock/disconnect the read surface too
1763 }
1764 }
1765 }
1766 return EGL_TRUE;
1767 }
1768 return setError(EGL_BAD_ACCESS, EGL_FALSE);
1769 }
1770
eglGetCurrentContext(void)1771 EGLContext eglGetCurrentContext(void)
1772 {
1773 // eglGetCurrentContext returns the current EGL rendering context,
1774 // as specified by eglMakeCurrent. If no context is current,
1775 // EGL_NO_CONTEXT is returned.
1776 return (EGLContext)getGlThreadSpecific();
1777 }
1778
eglGetCurrentSurface(EGLint readdraw)1779 EGLSurface eglGetCurrentSurface(EGLint readdraw)
1780 {
1781 // eglGetCurrentSurface returns the read or draw surface attached
1782 // to the current EGL rendering context, as specified by eglMakeCurrent.
1783 // If no context is current, EGL_NO_SURFACE is returned.
1784 EGLContext ctx = (EGLContext)getGlThreadSpecific();
1785 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE;
1786 egl_context_t* c = egl_context_t::context(ctx);
1787 if (readdraw == EGL_READ) {
1788 return c->read;
1789 } else if (readdraw == EGL_DRAW) {
1790 return c->draw;
1791 }
1792 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
1793 }
1794
eglGetCurrentDisplay(void)1795 EGLDisplay eglGetCurrentDisplay(void)
1796 {
1797 // eglGetCurrentDisplay returns the current EGL display connection
1798 // for the current EGL rendering context, as specified by eglMakeCurrent.
1799 // If no context is current, EGL_NO_DISPLAY is returned.
1800 EGLContext ctx = (EGLContext)getGlThreadSpecific();
1801 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY;
1802 egl_context_t* c = egl_context_t::context(ctx);
1803 return c->dpy;
1804 }
1805
eglQueryContext(EGLDisplay dpy,EGLContext ctx,EGLint attribute,EGLint * value)1806 EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx,
1807 EGLint attribute, EGLint *value)
1808 {
1809 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1810 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1811 egl_context_t* c = egl_context_t::context(ctx);
1812 switch (attribute) {
1813 case EGL_CONFIG_ID:
1814 // Returns the ID of the EGL frame buffer configuration with
1815 // respect to which the context was created
1816 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value);
1817 }
1818 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
1819 }
1820
eglWaitGL(void)1821 EGLBoolean eglWaitGL(void)
1822 {
1823 return EGL_TRUE;
1824 }
1825
eglWaitNative(EGLint engine)1826 EGLBoolean eglWaitNative(EGLint engine)
1827 {
1828 return EGL_TRUE;
1829 }
1830
eglSwapBuffers(EGLDisplay dpy,EGLSurface draw)1831 EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
1832 {
1833 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1834 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1835
1836 egl_surface_t* d = static_cast<egl_surface_t*>(draw);
1837 if (!d->isValid())
1838 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1839 if (d->dpy != dpy)
1840 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1841
1842 // post the surface
1843 d->swapBuffers();
1844
1845 // if it's bound to a context, update the buffer
1846 if (d->ctx != EGL_NO_CONTEXT) {
1847 d->bindDrawSurface((ogles_context_t*)d->ctx);
1848 // if this surface is also the read surface of the context
1849 // it is bound to, make sure to update the read buffer as well.
1850 // The EGL spec is a little unclear about this.
1851 egl_context_t* c = egl_context_t::context(d->ctx);
1852 if (c->read == draw) {
1853 d->bindReadSurface((ogles_context_t*)d->ctx);
1854 }
1855 }
1856
1857 return EGL_TRUE;
1858 }
1859
eglCopyBuffers(EGLDisplay dpy,EGLSurface surface,NativePixmapType target)1860 EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface,
1861 NativePixmapType target)
1862 {
1863 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1864 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1865 // TODO: eglCopyBuffers()
1866 return EGL_FALSE;
1867 }
1868
eglGetError(void)1869 EGLint eglGetError(void)
1870 {
1871 return getError();
1872 }
1873
eglQueryString(EGLDisplay dpy,EGLint name)1874 const char* eglQueryString(EGLDisplay dpy, EGLint name)
1875 {
1876 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1877 return setError(EGL_BAD_DISPLAY, (const char*)0);
1878
1879 switch (name) {
1880 case EGL_VENDOR:
1881 return gVendorString;
1882 case EGL_VERSION:
1883 return gVersionString;
1884 case EGL_EXTENSIONS:
1885 return gExtensionsString;
1886 case EGL_CLIENT_APIS:
1887 return gClientApiString;
1888 }
1889 return setError(EGL_BAD_PARAMETER, (const char *)0);
1890 }
1891
1892 // ----------------------------------------------------------------------------
1893 // EGL 1.1
1894 // ----------------------------------------------------------------------------
1895
eglSurfaceAttrib(EGLDisplay dpy,EGLSurface surface,EGLint attribute,EGLint value)1896 EGLBoolean eglSurfaceAttrib(
1897 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value)
1898 {
1899 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1900 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1901 // TODO: eglSurfaceAttrib()
1902 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1903 }
1904
eglBindTexImage(EGLDisplay dpy,EGLSurface surface,EGLint buffer)1905 EGLBoolean eglBindTexImage(
1906 EGLDisplay dpy, EGLSurface surface, EGLint buffer)
1907 {
1908 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1909 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1910 // TODO: eglBindTexImage()
1911 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1912 }
1913
eglReleaseTexImage(EGLDisplay dpy,EGLSurface surface,EGLint buffer)1914 EGLBoolean eglReleaseTexImage(
1915 EGLDisplay dpy, EGLSurface surface, EGLint buffer)
1916 {
1917 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1918 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1919 // TODO: eglReleaseTexImage()
1920 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1921 }
1922
eglSwapInterval(EGLDisplay dpy,EGLint interval)1923 EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval)
1924 {
1925 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1926 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1927 // TODO: eglSwapInterval()
1928 return EGL_TRUE;
1929 }
1930
1931 // ----------------------------------------------------------------------------
1932 // EGL 1.2
1933 // ----------------------------------------------------------------------------
1934
eglBindAPI(EGLenum api)1935 EGLBoolean eglBindAPI(EGLenum api)
1936 {
1937 if (api != EGL_OPENGL_ES_API)
1938 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1939 return EGL_TRUE;
1940 }
1941
eglQueryAPI(void)1942 EGLenum eglQueryAPI(void)
1943 {
1944 return EGL_OPENGL_ES_API;
1945 }
1946
eglWaitClient(void)1947 EGLBoolean eglWaitClient(void)
1948 {
1949 glFinish();
1950 return EGL_TRUE;
1951 }
1952
eglReleaseThread(void)1953 EGLBoolean eglReleaseThread(void)
1954 {
1955 // TODO: eglReleaseThread()
1956 return EGL_TRUE;
1957 }
1958
eglCreatePbufferFromClientBuffer(EGLDisplay dpy,EGLenum buftype,EGLClientBuffer buffer,EGLConfig config,const EGLint * attrib_list)1959 EGLSurface eglCreatePbufferFromClientBuffer(
1960 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer,
1961 EGLConfig config, const EGLint *attrib_list)
1962 {
1963 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1964 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1965 // TODO: eglCreatePbufferFromClientBuffer()
1966 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
1967 }
1968
1969 // ----------------------------------------------------------------------------
1970 // EGL_EGLEXT_VERSION 3
1971 // ----------------------------------------------------------------------------
1972
eglGetProcAddress(const char * procname)1973 void (*eglGetProcAddress (const char *procname))()
1974 {
1975 extention_map_t const * const map = gExtentionMap;
1976 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) {
1977 if (!strcmp(procname, map[i].name)) {
1978 return map[i].address;
1979 }
1980 }
1981 return NULL;
1982 }
1983
eglLockSurfaceKHR(EGLDisplay dpy,EGLSurface surface,const EGLint * attrib_list)1984 EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface,
1985 const EGLint *attrib_list)
1986 {
1987 EGLBoolean result = EGL_FALSE;
1988 return result;
1989 }
1990
eglUnlockSurfaceKHR(EGLDisplay dpy,EGLSurface surface)1991 EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface)
1992 {
1993 EGLBoolean result = EGL_FALSE;
1994 return result;
1995 }
1996
eglCreateImageKHR(EGLDisplay dpy,EGLContext ctx,EGLenum target,EGLClientBuffer buffer,const EGLint * attrib_list)1997 EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
1998 EGLClientBuffer buffer, const EGLint *attrib_list)
1999 {
2000 if (egl_display_t::is_valid(dpy) == EGL_FALSE) {
2001 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR);
2002 }
2003 if (ctx != EGL_NO_CONTEXT) {
2004 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR);
2005 }
2006 if (target != EGL_NATIVE_BUFFER_ANDROID) {
2007 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
2008 }
2009
2010 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)buffer;
2011
2012 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC)
2013 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
2014
2015 if (native_buffer->common.version != sizeof(ANativeWindowBuffer))
2016 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
2017
2018 switch (native_buffer->format) {
2019 case HAL_PIXEL_FORMAT_RGBA_8888:
2020 case HAL_PIXEL_FORMAT_RGBX_8888:
2021 case HAL_PIXEL_FORMAT_RGB_888:
2022 case HAL_PIXEL_FORMAT_RGB_565:
2023 case HAL_PIXEL_FORMAT_BGRA_8888:
2024 case HAL_PIXEL_FORMAT_RGBA_5551:
2025 case HAL_PIXEL_FORMAT_RGBA_4444:
2026 break;
2027 default:
2028 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
2029 }
2030
2031 native_buffer->common.incRef(&native_buffer->common);
2032 return (EGLImageKHR)native_buffer;
2033 }
2034
eglDestroyImageKHR(EGLDisplay dpy,EGLImageKHR img)2035 EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img)
2036 {
2037 if (egl_display_t::is_valid(dpy) == EGL_FALSE) {
2038 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
2039 }
2040
2041 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)img;
2042
2043 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC)
2044 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2045
2046 if (native_buffer->common.version != sizeof(ANativeWindowBuffer))
2047 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
2048
2049 native_buffer->common.decRef(&native_buffer->common);
2050
2051 return EGL_TRUE;
2052 }
2053
2054 // ----------------------------------------------------------------------------
2055 // ANDROID extensions
2056 // ----------------------------------------------------------------------------
2057
eglSetSwapRectangleANDROID(EGLDisplay dpy,EGLSurface draw,EGLint left,EGLint top,EGLint width,EGLint height)2058 EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw,
2059 EGLint left, EGLint top, EGLint width, EGLint height)
2060 {
2061 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
2062 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
2063
2064 egl_surface_t* d = static_cast<egl_surface_t*>(draw);
2065 if (!d->isValid())
2066 return setError(EGL_BAD_SURFACE, EGL_FALSE);
2067 if (d->dpy != dpy)
2068 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
2069
2070 // post the surface
2071 d->setSwapRectangle(left, top, width, height);
2072
2073 return EGL_TRUE;
2074 }
2075