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 #ifdef __arm__
19
20 #include <assert.h>
21 #include <errno.h>
22 #include <stdlib.h>
23 #include <stdio.h>
24 #include <string.h>
25 #include <unistd.h>
26 #include <fcntl.h>
27 #include <sys/ioctl.h>
28 #include <sys/types.h>
29 #include <sys/mman.h>
30
31 #include <cutils/log.h>
32 #include <cutils/atomic.h>
33
34 #include <pthread.h>
35 //#include <utils/threads.h>
36
37 #include <EGL/egl.h>
38 #include <EGL/eglext.h>
39 #include <GLES/gl.h>
40 #include <GLES/glext.h>
41
42 #include <pixelflinger/format.h>
43 #include <pixelflinger/pixelflinger.h>
44 //#include "pixelflinger2_format.h"
45 //#include "pixelflinger2_interface.h"
46
47 #include <private/ui/android_natives_priv.h>
48
49 //#include <binder/Parcel.h>
50 #include <surfaceflinger/Surface.h>
51 #include <surfaceflinger/ISurface.h>
52 #include <surfaceflinger/SurfaceComposerClient.h>
53
54 #undef NELEM
55 #define NELEM(x) (sizeof(x)/sizeof(*(x)))
56
57 #define ggl_unlikely(EXP) (EXP)
58 #define ggl_likely(EXP) (EXP)
59 #define min(A,B) ((A)<(B)?(A):(B))
60 #define max(A,B) ((A)>(B)?(A):(B))
61 // ----------------------------------------------------------------------------
62 namespace android
63 {
64 // ----------------------------------------------------------------------------
65
66 const unsigned int NUM_DISPLAYS = 1;
67
68 static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER;
69 static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER;
70 static pthread_key_t gEGLErrorKey = -1;
71 #ifndef HAVE_ANDROID_OS
72 namespace gl {
73 pthread_key_t gGLKey = -1;
74 }; // namespace gl
75 #endif
76
77 template<typename T>
setError(GLint error,T returnValue)78 static T setError(GLint error, T returnValue)
79 {
80 if (ggl_unlikely(gEGLErrorKey == -1)) {
81 pthread_mutex_lock(&gErrorKeyMutex);
82 if (gEGLErrorKey == -1)
83 pthread_key_create(&gEGLErrorKey, NULL);
84 pthread_mutex_unlock(&gErrorKeyMutex);
85 }
86 pthread_setspecific(gEGLErrorKey, (void*)error);
87 return returnValue;
88 }
89
getError()90 static GLint getError()
91 {
92 if (ggl_unlikely(gEGLErrorKey == -1))
93 return EGL_SUCCESS;
94 GLint error = (GLint)pthread_getspecific(gEGLErrorKey);
95 pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS);
96 return error;
97 }
98
99 static struct ogles_context_t * global_ctx;
100
101 struct ogles_context_t {
102 struct context_t {
103 struct egl_context_t* base;
104 } rasterizer;
105
106 unsigned width, height, stride, format; // curret backbuffer
107 void * bits;
108
109 GLenum error;
110
getandroid::ogles_context_t111 static inline ogles_context_t* get() {
112 return global_ctx;
113 }
114 };
115
getGlThreadSpecific()116 ogles_context_t * getGlThreadSpecific()
117 {
118 return global_ctx;
119 }
setGlThreadSpecific(ogles_context_t * ctx)120 void setGlThreadSpecific(ogles_context_t * ctx)
121 {
122 global_ctx = ctx;
123 }
124
125 // ----------------------------------------------------------------------------
126
127 struct egl_display_t {
egl_display_tandroid::egl_display_t128 egl_display_t() : type(0), initialized(0) { }
129
130 static egl_display_t& get_display(EGLDisplay dpy);
131
is_validandroid::egl_display_t132 static EGLBoolean is_valid(EGLDisplay dpy) {
133 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE;
134 }
135
136 NativeDisplayType type;
137 volatile int32_t initialized;
138 };
139
140 static egl_display_t gDisplays[NUM_DISPLAYS];
141
get_display(EGLDisplay dpy)142 egl_display_t& egl_display_t::get_display(EGLDisplay dpy)
143 {
144 return gDisplays[uintptr_t(dpy)-1U];
145 }
146
147 struct egl_context_t {
148 enum {
149 IS_CURRENT = 0x00010000,
150 NEVER_CURRENT = 0x00020000
151 };
152 uint32_t flags;
153 EGLDisplay dpy;
154 EGLConfig config;
155 EGLSurface read;
156 EGLSurface draw;
157
contextandroid::egl_context_t158 static inline egl_context_t* context(EGLContext ctx) {
159 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx);
160 return static_cast<egl_context_t*>(gl->rasterizer.base);
161 }
162 };
163
164 // ----------------------------------------------------------------------------
165
166 struct egl_surface_t {
167 enum {
168 PAGE_FLIP = 0x00000001,
169 MAGIC = 0x31415265
170 };
171
172 uint32_t magic;
173 EGLDisplay dpy;
174 EGLConfig config;
175 EGLContext ctx;
176
177 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat);
178 virtual ~egl_surface_t();
179 bool isValid() const;
180 virtual bool initCheck() const = 0;
181
182 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0;
183 //virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0;
connectandroid::egl_surface_t184 virtual EGLBoolean connect() {
185 return EGL_TRUE;
186 }
disconnectandroid::egl_surface_t187 virtual void disconnect() {}
188 virtual EGLint getWidth() const = 0;
189 virtual EGLint getHeight() const = 0;
190
191 virtual EGLint getHorizontalResolution() const;
192 virtual EGLint getVerticalResolution() const;
193 virtual EGLint getRefreshRate() const;
194 virtual EGLint getSwapBehavior() const;
195 virtual EGLBoolean swapBuffers();
196 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h);
197 protected:
198 GGLSurface depth;
199 };
200
egl_surface_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat)201 egl_surface_t::egl_surface_t(EGLDisplay dpy,
202 EGLConfig config,
203 int32_t depthFormat)
204 : magic(MAGIC), dpy(dpy), config(config), ctx(0)
205 {
206 depth.version = sizeof(GGLSurface);
207 depth.data = 0;
208 depth.format = depthFormat;
209 }
~egl_surface_t()210 egl_surface_t::~egl_surface_t()
211 {
212 magic = 0;
213 free(depth.data);
214 }
isValid() const215 bool egl_surface_t::isValid() const
216 {
217 LOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this);
218 return magic == MAGIC;
219 }
220
swapBuffers()221 EGLBoolean egl_surface_t::swapBuffers()
222 {
223 return EGL_FALSE;
224 }
getHorizontalResolution() const225 EGLint egl_surface_t::getHorizontalResolution() const
226 {
227 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
228 }
getVerticalResolution() const229 EGLint egl_surface_t::getVerticalResolution() const
230 {
231 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
232 }
getRefreshRate() const233 EGLint egl_surface_t::getRefreshRate() const
234 {
235 return (60 * EGL_DISPLAY_SCALING);
236 }
getSwapBehavior() const237 EGLint egl_surface_t::getSwapBehavior() const
238 {
239 return EGL_BUFFER_PRESERVED;
240 }
setSwapRectangle(EGLint l,EGLint t,EGLint w,EGLint h)241 EGLBoolean egl_surface_t::setSwapRectangle(
242 EGLint l, EGLint t, EGLint w, EGLint h)
243 {
244 return EGL_FALSE;
245 }
246
247 // ----------------------------------------------------------------------------
248
249 struct egl_window_surface_v2_t : public egl_surface_t {
250 egl_window_surface_v2_t(
251 EGLDisplay dpy, EGLConfig config,
252 int32_t depthFormat,
253 ANativeWindow* window);
254
255 ~egl_window_surface_v2_t();
256
initCheckandroid::egl_window_surface_v2_t257 virtual bool initCheck() const {
258 return true; // TODO: report failure if ctor fails
259 }
260 virtual EGLBoolean swapBuffers();
261 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
262 //virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
263 virtual EGLBoolean connect();
264 virtual void disconnect();
getWidthandroid::egl_window_surface_v2_t265 virtual EGLint getWidth() const {
266 return width;
267 }
getHeightandroid::egl_window_surface_v2_t268 virtual EGLint getHeight() const {
269 return height;
270 }
271 virtual EGLint getHorizontalResolution() const;
272 virtual EGLint getVerticalResolution() const;
273 virtual EGLint getRefreshRate() const;
274 virtual EGLint getSwapBehavior() const;
275 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h);
276
277 private:
278 status_t lock(ANativeWindowBuffer* buf, int usage, void** vaddr);
279 status_t unlock(ANativeWindowBuffer* buf);
280 ANativeWindow* nativeWindow;
281 ANativeWindowBuffer* buffer;
282 ANativeWindowBuffer* previousBuffer;
283 gralloc_module_t const* module;
284 int width;
285 int height;
286 void* bits;
287 GGLFormat const* pixelFormatTable;
288
289 struct Rect {
Rectandroid::egl_window_surface_v2_t::Rect290 inline Rect() { };
Rectandroid::egl_window_surface_v2_t::Rect291 inline Rect(int32_t w, int32_t h)
292 : left(0), top(0), right(w), bottom(h) { }
Rectandroid::egl_window_surface_v2_t::Rect293 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b)
294 : left(l), top(t), right(r), bottom(b) { }
andSelfandroid::egl_window_surface_v2_t::Rect295 Rect& andSelf(const Rect& r) {
296 left = max(left, r.left);
297 top = max(top, r.top);
298 right = min(right, r.right);
299 bottom = min(bottom, r.bottom);
300 return *this;
301 }
isEmptyandroid::egl_window_surface_v2_t::Rect302 bool isEmpty() const {
303 return (left>=right || top>=bottom);
304 }
dumpandroid::egl_window_surface_v2_t::Rect305 void dump(char const* what) {
306 LOGD("%s { %5d, %5d, w=%5d, h=%5d }",
307 what, left, top, right-left, bottom-top);
308 }
309
310 int32_t left;
311 int32_t top;
312 int32_t right;
313 int32_t bottom;
314 };
315
316 struct Region {
Regionandroid::egl_window_surface_v2_t::Region317 inline Region() : count(0) { }
318 typedef Rect const* const_iterator;
beginandroid::egl_window_surface_v2_t::Region319 const_iterator begin() const {
320 return storage;
321 }
endandroid::egl_window_surface_v2_t::Region322 const_iterator end() const {
323 return storage+count;
324 }
subtractandroid::egl_window_surface_v2_t::Region325 static Region subtract(const Rect& lhs, const Rect& rhs) {
326 Region reg;
327 Rect* storage = reg.storage;
328 if (!lhs.isEmpty()) {
329 if (lhs.top < rhs.top) { // top rect
330 storage->left = lhs.left;
331 storage->top = lhs.top;
332 storage->right = lhs.right;
333 storage->bottom = rhs.top;
334 storage++;
335 }
336 const int32_t top = max(lhs.top, rhs.top);
337 const int32_t bot = min(lhs.bottom, rhs.bottom);
338 if (top < bot) {
339 if (lhs.left < rhs.left) { // left-side rect
340 storage->left = lhs.left;
341 storage->top = top;
342 storage->right = rhs.left;
343 storage->bottom = bot;
344 storage++;
345 }
346 if (lhs.right > rhs.right) { // right-side rect
347 storage->left = rhs.right;
348 storage->top = top;
349 storage->right = lhs.right;
350 storage->bottom = bot;
351 storage++;
352 }
353 }
354 if (lhs.bottom > rhs.bottom) { // bottom rect
355 storage->left = lhs.left;
356 storage->top = rhs.bottom;
357 storage->right = lhs.right;
358 storage->bottom = lhs.bottom;
359 storage++;
360 }
361 reg.count = storage - reg.storage;
362 }
363 return reg;
364 }
isEmptyandroid::egl_window_surface_v2_t::Region365 bool isEmpty() const {
366 return count<=0;
367 }
368 private:
369 Rect storage[4];
370 ssize_t count;
371 };
372
373 void copyBlt(
374 ANativeWindowBuffer* dst, void* dst_vaddr,
375 ANativeWindowBuffer* src, void const* src_vaddr,
376 const Region& clip);
377
378 Rect dirtyRegion;
379 Rect oldDirtyRegion;
380 };
381
egl_window_surface_v2_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat,ANativeWindow * window)382 egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy,
383 EGLConfig config,
384 int32_t depthFormat,
385 ANativeWindow* window)
386 : egl_surface_t(dpy, config, depthFormat),
387 nativeWindow(window), buffer(0), previousBuffer(0), module(0),
388 bits(NULL)
389 {
390 hw_module_t const* pModule;
391 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule);
392 module = reinterpret_cast<gralloc_module_t const*>(pModule);
393
394 pixelFormatTable = gglGetPixelFormatTable();
395
396 // keep a reference on the window
397 nativeWindow->common.incRef(&nativeWindow->common);
398 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width);
399 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height);
400 }
401
~egl_window_surface_v2_t()402 egl_window_surface_v2_t::~egl_window_surface_v2_t()
403 {
404 if (buffer) {
405 buffer->common.decRef(&buffer->common);
406 }
407 if (previousBuffer) {
408 previousBuffer->common.decRef(&previousBuffer->common);
409 }
410 nativeWindow->common.decRef(&nativeWindow->common);
411 }
412
connect()413 EGLBoolean egl_window_surface_v2_t::connect()
414 {
415 // we're intending to do software rendering
416 native_window_set_usage(nativeWindow,
417 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
418
419 // dequeue a buffer
420 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) {
421 return setError(EGL_BAD_ALLOC, EGL_FALSE);
422 }
423
424 // allocate a corresponding depth-buffer
425 width = buffer->width;
426 height = buffer->height;
427 if (depth.format) {
428 depth.width = width;
429 depth.height = height;
430 depth.stride = depth.width; // use the width here
431 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
432 if (depth.data == 0) {
433 return setError(EGL_BAD_ALLOC, EGL_FALSE);
434 }
435 }
436
437 // keep a reference on the buffer
438 buffer->common.incRef(&buffer->common);
439
440 // Lock the buffer
441 nativeWindow->lockBuffer(nativeWindow, buffer);
442 // pin the buffer down
443 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN |
444 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) {
445 LOGE("connect() failed to lock buffer %p (%ux%u)",
446 buffer, buffer->width, buffer->height);
447 return setError(EGL_BAD_ACCESS, EGL_FALSE);
448 // FIXME: we should make sure we're not accessing the buffer anymore
449 }
450 return EGL_TRUE;
451 }
452
disconnect()453 void egl_window_surface_v2_t::disconnect()
454 {
455 if (buffer && bits) {
456 bits = NULL;
457 unlock(buffer);
458 }
459 // enqueue the last frame
460 nativeWindow->queueBuffer(nativeWindow, buffer);
461 if (buffer) {
462 buffer->common.decRef(&buffer->common);
463 buffer = 0;
464 }
465 if (previousBuffer) {
466 previousBuffer->common.decRef(&previousBuffer->common);
467 previousBuffer = 0;
468 }
469 }
470
lock(ANativeWindowBuffer * buf,int usage,void ** vaddr)471 status_t egl_window_surface_v2_t::lock(
472 ANativeWindowBuffer* buf, int usage, void** vaddr)
473 {
474 int err;
475
476 err = module->lock(module, buf->handle,
477 usage, 0, 0, buf->width, buf->height, vaddr);
478
479 return err;
480 }
481
unlock(ANativeWindowBuffer * buf)482 status_t egl_window_surface_v2_t::unlock(ANativeWindowBuffer* buf)
483 {
484 if (!buf) return BAD_VALUE;
485 int err = NO_ERROR;
486
487 err = module->unlock(module, buf->handle);
488
489 return err;
490 }
491
copyBlt(ANativeWindowBuffer * dst,void * dst_vaddr,ANativeWindowBuffer * src,void const * src_vaddr,const Region & clip)492 void egl_window_surface_v2_t::copyBlt(
493 ANativeWindowBuffer* dst, void* dst_vaddr,
494 ANativeWindowBuffer* src, void const* src_vaddr,
495 const Region& clip)
496 {
497 // FIXME: use copybit if possible
498 // NOTE: dst and src must be the same format
499
500 Region::const_iterator cur = clip.begin();
501 Region::const_iterator end = clip.end();
502
503 const size_t bpp = pixelFormatTable[src->format].size;
504 const size_t dbpr = dst->stride * bpp;
505 const size_t sbpr = src->stride * bpp;
506
507 uint8_t const * const src_bits = (uint8_t const *)src_vaddr;
508 uint8_t * const dst_bits = (uint8_t *)dst_vaddr;
509
510 while (cur != end) {
511 const Rect& r(*cur++);
512 ssize_t w = r.right - r.left;
513 ssize_t h = r.bottom - r.top;
514 if (w <= 0 || h<=0) continue;
515 size_t size = w * bpp;
516 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp;
517 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp;
518 if (dbpr==sbpr && size==sbpr) {
519 size *= h;
520 h = 1;
521 }
522 do {
523 memcpy(d, s, size);
524 d += dbpr;
525 s += sbpr;
526 } while (--h > 0);
527 }
528 }
529
swapBuffers()530 EGLBoolean egl_window_surface_v2_t::swapBuffers()
531 {
532 if (!buffer) {
533 return setError(EGL_BAD_ACCESS, EGL_FALSE);
534 }
535
536 /*
537 * Handle eglSetSwapRectangleANDROID()
538 * We copyback from the front buffer
539 */
540 if (!dirtyRegion.isEmpty()) {
541 dirtyRegion.andSelf(Rect(buffer->width, buffer->height));
542 if (previousBuffer) {
543 // This was const Region copyBack, but that causes an
544 // internal compile error on simulator builds
545 /*const*/
546 Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion));
547 if (!copyBack.isEmpty()) {
548 void* prevBits;
549 if (lock(previousBuffer,
550 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) {
551 // copy from previousBuffer to buffer
552 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack);
553 unlock(previousBuffer);
554 }
555 }
556 }
557 oldDirtyRegion = dirtyRegion;
558 }
559
560 if (previousBuffer) {
561 previousBuffer->common.decRef(&previousBuffer->common);
562 previousBuffer = 0;
563 }
564
565 unlock(buffer);
566 previousBuffer = buffer;
567 nativeWindow->queueBuffer(nativeWindow, buffer);
568 buffer = 0;
569
570 // dequeue a new buffer
571 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) == NO_ERROR) {
572
573 // TODO: lockBuffer should rather be executed when the very first
574 // direct rendering occurs.
575 nativeWindow->lockBuffer(nativeWindow, buffer);
576
577 // reallocate the depth-buffer if needed
578 if ((width != buffer->width) || (height != buffer->height)) {
579 // TODO: we probably should reset the swap rect here
580 // if the window size has changed
581 width = buffer->width;
582 height = buffer->height;
583 if (depth.data) {
584 free(depth.data);
585 depth.width = width;
586 depth.height = height;
587 depth.stride = buffer->stride;
588 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
589 if (depth.data == 0) {
590 setError(EGL_BAD_ALLOC, EGL_FALSE);
591 return EGL_FALSE;
592 }
593 }
594 }
595
596 // keep a reference on the buffer
597 buffer->common.incRef(&buffer->common);
598
599 // finally pin the buffer down
600 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN |
601 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) {
602 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)",
603 buffer, buffer->width, buffer->height);
604 return setError(EGL_BAD_ACCESS, EGL_FALSE);
605 // FIXME: we should make sure we're not accessing the buffer anymore
606 }
607 } else {
608 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
609 }
610
611 return EGL_TRUE;
612 }
613
setSwapRectangle(EGLint l,EGLint t,EGLint w,EGLint h)614 EGLBoolean egl_window_surface_v2_t::setSwapRectangle(
615 EGLint l, EGLint t, EGLint w, EGLint h)
616 {
617 dirtyRegion = Rect(l, t, l+w, t+h);
618 return EGL_TRUE;
619 }
620
bindDrawSurface(ogles_context_t * gl)621 EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl)
622 {
623 GGLSurface buffer;
624 buffer.version = sizeof(GGLSurface);
625 buffer.width = this->buffer->width;
626 buffer.height = this->buffer->height;
627 buffer.stride = this->buffer->stride;
628 buffer.data = (GGLubyte*)bits;
629 buffer.format = this->buffer->format;
630
631 //puts("egl_window_surface_v2_t::bindDrawSurface");
632 //printf("\t width=%d height=%d stride=%d format=%d \n", buffer.width, buffer.height, buffer.stride, buffer.format);
633
634 gl->width = this->buffer->width;
635 gl->height = this->buffer->height;
636 gl->stride = this->buffer->stride;
637 gl->format = this->buffer->format;
638 gl->bits = bits;
639
640 //gl->rasterizer.procs.colorBuffer(gl, &buffer);
641 //if (depth.data != gl->rasterizer.state.buffers.depth.data)
642 // gl->rasterizer.procs.depthBuffer(gl, &depth);
643 return EGL_TRUE;
644 }
getHorizontalResolution() const645 EGLint egl_window_surface_v2_t::getHorizontalResolution() const
646 {
647 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
648 }
getVerticalResolution() const649 EGLint egl_window_surface_v2_t::getVerticalResolution() const
650 {
651 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
652 }
getRefreshRate() const653 EGLint egl_window_surface_v2_t::getRefreshRate() const
654 {
655 return (60 * EGL_DISPLAY_SCALING); // FIXME
656 }
getSwapBehavior() const657 EGLint egl_window_surface_v2_t::getSwapBehavior() const
658 {
659 /*
660 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves
661 * the content of the swapped buffer.
662 *
663 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost.
664 *
665 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED
666 * only applies to the area specified by eglSetSwapRectangleANDROID(), that
667 * is, everything outside of this area is preserved.
668 *
669 * This implementation of EGL assumes the later case.
670 *
671 */
672
673 return EGL_BUFFER_DESTROYED;
674 }
675
676 // ----------------------------------------------------------------------------
677
678 struct egl_pixmap_surface_t : public egl_surface_t {
679 egl_pixmap_surface_t(
680 EGLDisplay dpy, EGLConfig config,
681 int32_t depthFormat,
682 egl_native_pixmap_t const * pixmap);
683
~egl_pixmap_surface_tandroid::egl_pixmap_surface_t684 virtual ~egl_pixmap_surface_t() { }
685
initCheckandroid::egl_pixmap_surface_t686 virtual bool initCheck() const {
687 return !depth.format || depth.data!=0;
688 }
689 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
690 //virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
getWidthandroid::egl_pixmap_surface_t691 virtual EGLint getWidth() const {
692 return nativePixmap.width;
693 }
getHeightandroid::egl_pixmap_surface_t694 virtual EGLint getHeight() const {
695 return nativePixmap.height;
696 }
697 private:
698 egl_native_pixmap_t nativePixmap;
699 };
700
egl_pixmap_surface_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat,egl_native_pixmap_t const * pixmap)701 egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy,
702 EGLConfig config,
703 int32_t depthFormat,
704 egl_native_pixmap_t const * pixmap)
705 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap)
706 {
707 if (depthFormat) {
708 depth.width = pixmap->width;
709 depth.height = pixmap->height;
710 depth.stride = depth.width; // use the width here
711 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
712 if (depth.data == 0) {
713 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
714 }
715 }
716 }
bindDrawSurface(ogles_context_t * gl)717 EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl)
718 {
719 puts("egl_pixmap_surface_t::bindDrawSurface");
720 GGLSurface buffer;
721 buffer.version = sizeof(GGLSurface);
722 buffer.width = nativePixmap.width;
723 buffer.height = nativePixmap.height;
724 buffer.stride = nativePixmap.stride;
725 buffer.data = nativePixmap.data;
726 buffer.format = nativePixmap.format;
727
728 //gl->rasterizer.procs.colorBuffer(gl, &buffer);
729 //if (depth.data != gl->rasterizer.state.buffers.depth.data)
730 // gl->rasterizer.procs.depthBuffer(gl, &depth);
731 return EGL_TRUE;
732 }
733
734 // ----------------------------------------------------------------------------
735
736 struct egl_pbuffer_surface_t : public egl_surface_t {
737 egl_pbuffer_surface_t(
738 EGLDisplay dpy, EGLConfig config, int32_t depthFormat,
739 int32_t w, int32_t h, int32_t f);
740
741 virtual ~egl_pbuffer_surface_t();
742
initCheckandroid::egl_pbuffer_surface_t743 virtual bool initCheck() const {
744 return pbuffer.data != 0;
745 }
746 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
747 //virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
getWidthandroid::egl_pbuffer_surface_t748 virtual EGLint getWidth() const {
749 return pbuffer.width;
750 }
getHeightandroid::egl_pbuffer_surface_t751 virtual EGLint getHeight() const {
752 return pbuffer.height;
753 }
754 private:
755 GGLSurface pbuffer;
756 };
757
egl_pbuffer_surface_t(EGLDisplay dpy,EGLConfig config,int32_t depthFormat,int32_t w,int32_t h,int32_t f)758 egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy,
759 EGLConfig config, int32_t depthFormat,
760 int32_t w, int32_t h, int32_t f)
761 : egl_surface_t(dpy, config, depthFormat)
762 {
763 size_t size = w*h;
764 switch (f) {
765 case GGL_PIXEL_FORMAT_A_8:
766 size *= 1;
767 break;
768 case GGL_PIXEL_FORMAT_RGB_565:
769 size *= 2;
770 break;
771 case GGL_PIXEL_FORMAT_RGBA_8888:
772 size *= 4;
773 break;
774 case GGL_PIXEL_FORMAT_RGBX_8888:
775 size *= 4;
776 break;
777 default:
778 LOGE("incompatible pixel format for pbuffer (format=%d)", f);
779 pbuffer.data = 0;
780 break;
781 }
782 pbuffer.version = sizeof(GGLSurface);
783 pbuffer.width = w;
784 pbuffer.height = h;
785 pbuffer.stride = w;
786 pbuffer.data = (GGLubyte*)malloc(size);
787 pbuffer.format = f;
788
789 if (depthFormat) {
790 depth.width = pbuffer.width;
791 depth.height = pbuffer.height;
792 depth.stride = depth.width; // use the width here
793 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
794 if (depth.data == 0) {
795 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
796 return;
797 }
798 }
799 }
~egl_pbuffer_surface_t()800 egl_pbuffer_surface_t::~egl_pbuffer_surface_t()
801 {
802 free(pbuffer.data);
803 }
bindDrawSurface(ogles_context_t * gl)804 EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl)
805 {
806 puts("egl_pbuffer_surface_t::bindDrawSurface");
807 //gl->rasterizer.procs.colorBuffer(gl, &pbuffer);
808 //if (depth.data != gl->rasterizer.state.buffers.depth.data)
809 // gl->rasterizer.procs.depthBuffer(gl, &depth);
810 return EGL_TRUE;
811 }
812
813 // ----------------------------------------------------------------------------
814
815 struct config_pair_t {
816 GLint key;
817 GLint value;
818 };
819
820 struct configs_t {
821 const config_pair_t* array;
822 int size;
823 };
824
825 struct config_management_t {
826 GLint key;
827 bool (*match)(GLint reqValue, GLint confValue);
atLeastandroid::config_management_t828 static bool atLeast(GLint reqValue, GLint confValue) {
829 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue);
830 }
exactandroid::config_management_t831 static bool exact(GLint reqValue, GLint confValue) {
832 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue);
833 }
maskandroid::config_management_t834 static bool mask(GLint reqValue, GLint confValue) {
835 return (confValue & reqValue) == reqValue;
836 }
ignoreandroid::config_management_t837 static bool ignore(GLint reqValue, GLint confValue) {
838 return true;
839 }
840 };
841
842 // ----------------------------------------------------------------------------
843
844 #define VERSION_MAJOR 1
845 #define VERSION_MINOR 2
846 static char const * const gVendorString = "Google Inc.";
847 static char const * const gVersionString = "1.2 Android Driver 1.2.0";
848 static char const * const gClientApiString = "OpenGL ES";
849 static char const * const gExtensionsString =
850 "EGL_KHR_image_base "
851 // "KHR_image_pixmap "
852 "EGL_ANDROID_image_native_buffer "
853 "EGL_ANDROID_swap_rectangle "
854 ;
855
856 // ----------------------------------------------------------------------------
857
858 struct extention_map_t {
859 const char * const name;
860 __eglMustCastToProperFunctionPointerType address;
861 };
862
863 static const extention_map_t gExtentionMap[] = {};
864
865 /*
866 * In the lists below, attributes names MUST be sorted.
867 * Additionally, all configs must be sorted according to
868 * the EGL specification.
869 */
870
871 static config_pair_t const config_base_attribute_list[] = {
872 { EGL_STENCIL_SIZE, 0 },
873 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG },
874 { EGL_LEVEL, 0 },
875 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS },
876 { EGL_MAX_PBUFFER_PIXELS,
877 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS },
878 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS },
879 { EGL_NATIVE_RENDERABLE, EGL_TRUE },
880 { EGL_NATIVE_VISUAL_ID, 0 },
881 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 },
882 { EGL_SAMPLES, 0 },
883 { EGL_SAMPLE_BUFFERS, 0 },
884 { EGL_TRANSPARENT_TYPE, EGL_NONE },
885 { EGL_TRANSPARENT_BLUE_VALUE, 0 },
886 { EGL_TRANSPARENT_GREEN_VALUE, 0 },
887 { EGL_TRANSPARENT_RED_VALUE, 0 },
888 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE },
889 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE },
890 { EGL_MIN_SWAP_INTERVAL, 1 },
891 { EGL_MAX_SWAP_INTERVAL, 1 },
892 { EGL_LUMINANCE_SIZE, 0 },
893 { EGL_ALPHA_MASK_SIZE, 0 },
894 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER },
895 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT },
896 { EGL_CONFORMANT, 0 }
897 };
898
899 // These configs can override the base attribute list
900 // NOTE: when adding a config here, don't forget to update eglCreate*Surface()
901
902 // 565 configs
903 static config_pair_t const config_0_attribute_list[] = {
904 { EGL_BUFFER_SIZE, 16 },
905 { EGL_ALPHA_SIZE, 0 },
906 { EGL_BLUE_SIZE, 5 },
907 { EGL_GREEN_SIZE, 6 },
908 { EGL_RED_SIZE, 5 },
909 { EGL_DEPTH_SIZE, 0 },
910 { EGL_CONFIG_ID, 0 },
911 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 },
912 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
913 };
914
915 static config_pair_t const config_1_attribute_list[] = {
916 { EGL_BUFFER_SIZE, 16 },
917 { EGL_ALPHA_SIZE, 0 },
918 { EGL_BLUE_SIZE, 5 },
919 { EGL_GREEN_SIZE, 6 },
920 { EGL_RED_SIZE, 5 },
921 { EGL_DEPTH_SIZE, 16 },
922 { EGL_CONFIG_ID, 1 },
923 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 },
924 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
925 };
926
927 // RGB 888 configs
928 static config_pair_t const config_2_attribute_list[] = {
929 { EGL_BUFFER_SIZE, 32 },
930 { EGL_ALPHA_SIZE, 0 },
931 { EGL_BLUE_SIZE, 8 },
932 { EGL_GREEN_SIZE, 8 },
933 { EGL_RED_SIZE, 8 },
934 { EGL_DEPTH_SIZE, 0 },
935 { EGL_CONFIG_ID, 6 },
936 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 },
937 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
938 };
939
940 static config_pair_t const config_3_attribute_list[] = {
941 { EGL_BUFFER_SIZE, 32 },
942 { EGL_ALPHA_SIZE, 0 },
943 { EGL_BLUE_SIZE, 8 },
944 { EGL_GREEN_SIZE, 8 },
945 { EGL_RED_SIZE, 8 },
946 { EGL_DEPTH_SIZE, 16 },
947 { EGL_CONFIG_ID, 7 },
948 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 },
949 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
950 };
951
952 // 8888 configs
953 static config_pair_t const config_4_attribute_list[] = {
954 { EGL_BUFFER_SIZE, 32 },
955 { EGL_ALPHA_SIZE, 8 },
956 { EGL_BLUE_SIZE, 8 },
957 { EGL_GREEN_SIZE, 8 },
958 { EGL_RED_SIZE, 8 },
959 { EGL_DEPTH_SIZE, 0 },
960 { EGL_CONFIG_ID, 2 },
961 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 },
962 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
963 };
964
965 static config_pair_t const config_5_attribute_list[] = {
966 { EGL_BUFFER_SIZE, 32 },
967 { EGL_ALPHA_SIZE, 8 },
968 { EGL_BLUE_SIZE, 8 },
969 { EGL_GREEN_SIZE, 8 },
970 { EGL_RED_SIZE, 8 },
971 { EGL_DEPTH_SIZE, 16 },
972 { EGL_CONFIG_ID, 3 },
973 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 },
974 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
975 };
976
977 // A8 configs
978 static config_pair_t const config_6_attribute_list[] = {
979 { EGL_BUFFER_SIZE, 8 },
980 { EGL_ALPHA_SIZE, 8 },
981 { EGL_BLUE_SIZE, 0 },
982 { EGL_GREEN_SIZE, 0 },
983 { EGL_RED_SIZE, 0 },
984 { EGL_DEPTH_SIZE, 0 },
985 { EGL_CONFIG_ID, 4 },
986 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 },
987 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
988 };
989
990 static config_pair_t const config_7_attribute_list[] = {
991 { EGL_BUFFER_SIZE, 8 },
992 { EGL_ALPHA_SIZE, 8 },
993 { EGL_BLUE_SIZE, 0 },
994 { EGL_GREEN_SIZE, 0 },
995 { EGL_RED_SIZE, 0 },
996 { EGL_DEPTH_SIZE, 16 },
997 { EGL_CONFIG_ID, 5 },
998 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 },
999 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
1000 };
1001
1002 static configs_t const gConfigs[] = {
1003 { config_0_attribute_list, NELEM(config_0_attribute_list) },
1004 { config_1_attribute_list, NELEM(config_1_attribute_list) },
1005 { config_2_attribute_list, NELEM(config_2_attribute_list) },
1006 { config_3_attribute_list, NELEM(config_3_attribute_list) },
1007 { config_4_attribute_list, NELEM(config_4_attribute_list) },
1008 { config_5_attribute_list, NELEM(config_5_attribute_list) },
1009 { config_6_attribute_list, NELEM(config_6_attribute_list) },
1010 { config_7_attribute_list, NELEM(config_7_attribute_list) },
1011 };
1012
1013 static config_management_t const gConfigManagement[] = {
1014 { EGL_BUFFER_SIZE, config_management_t::atLeast },
1015 { EGL_ALPHA_SIZE, config_management_t::atLeast },
1016 { EGL_BLUE_SIZE, config_management_t::atLeast },
1017 { EGL_GREEN_SIZE, config_management_t::atLeast },
1018 { EGL_RED_SIZE, config_management_t::atLeast },
1019 { EGL_DEPTH_SIZE, config_management_t::atLeast },
1020 { EGL_STENCIL_SIZE, config_management_t::atLeast },
1021 { EGL_CONFIG_CAVEAT, config_management_t::exact },
1022 { EGL_CONFIG_ID, config_management_t::exact },
1023 { EGL_LEVEL, config_management_t::exact },
1024 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::ignore },
1025 { EGL_MAX_PBUFFER_PIXELS, config_management_t::ignore },
1026 { EGL_MAX_PBUFFER_WIDTH, config_management_t::ignore },
1027 { EGL_NATIVE_RENDERABLE, config_management_t::exact },
1028 { EGL_NATIVE_VISUAL_ID, config_management_t::ignore },
1029 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact },
1030 { EGL_SAMPLES, config_management_t::exact },
1031 { EGL_SAMPLE_BUFFERS, config_management_t::exact },
1032 { EGL_SURFACE_TYPE, config_management_t::mask },
1033 { EGL_TRANSPARENT_TYPE, config_management_t::exact },
1034 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact },
1035 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact },
1036 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact },
1037 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact },
1038 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact },
1039 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact },
1040 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact },
1041 { EGL_LUMINANCE_SIZE, config_management_t::atLeast },
1042 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast },
1043 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact },
1044 { EGL_RENDERABLE_TYPE, config_management_t::mask },
1045 { EGL_CONFORMANT, config_management_t::mask }
1046 };
1047
1048
1049 static config_pair_t const config_defaults[] = {
1050 // attributes that are not specified are simply ignored, if a particular
1051 // one needs not be ignored, it must be specified here, eg:
1052 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT },
1053 };
1054
1055 // ----------------------------------------------------------------------------
1056
getConfigFormatInfo(EGLint configID,int32_t & pixelFormat,int32_t & depthFormat)1057 static status_t getConfigFormatInfo(EGLint configID,
1058 int32_t& pixelFormat, int32_t& depthFormat)
1059 {
1060 switch (configID) {
1061 case 0:
1062 pixelFormat = GGL_PIXEL_FORMAT_RGB_565;
1063 depthFormat = 0;
1064 break;
1065 case 1:
1066 pixelFormat = GGL_PIXEL_FORMAT_RGB_565;
1067 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1068 break;
1069 case 2:
1070 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888;
1071 depthFormat = 0;
1072 break;
1073 case 3:
1074 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888;
1075 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1076 break;
1077 case 4:
1078 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
1079 depthFormat = 0;
1080 break;
1081 case 5:
1082 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
1083 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1084 break;
1085 case 6:
1086 pixelFormat = GGL_PIXEL_FORMAT_A_8;
1087 depthFormat = 0;
1088 break;
1089 case 7:
1090 pixelFormat = GGL_PIXEL_FORMAT_A_8;
1091 depthFormat = GGL_PIXEL_FORMAT_Z_16;
1092 break;
1093 default:
1094 return NAME_NOT_FOUND;
1095 }
1096 return NO_ERROR;
1097 }
1098
1099 // ----------------------------------------------------------------------------
1100
1101 template<typename T>
binarySearch(T const sortedArray[],int first,int last,EGLint key)1102 static int binarySearch(T const sortedArray[], int first, int last, EGLint key)
1103 {
1104 while (first <= last) {
1105 int mid = (first + last) / 2;
1106 if (key > sortedArray[mid].key) {
1107 first = mid + 1;
1108 } else if (key < sortedArray[mid].key) {
1109 last = mid - 1;
1110 } else {
1111 return mid;
1112 }
1113 }
1114 return -1;
1115 }
1116
isAttributeMatching(int i,EGLint attr,EGLint val)1117 static int isAttributeMatching(int i, EGLint attr, EGLint val)
1118 {
1119 // look for the attribute in all of our configs
1120 config_pair_t const* configFound = gConfigs[i].array;
1121 int index = binarySearch<config_pair_t>(
1122 gConfigs[i].array,
1123 0, gConfigs[i].size-1,
1124 attr);
1125 if (index < 0) {
1126 configFound = config_base_attribute_list;
1127 index = binarySearch<config_pair_t>(
1128 config_base_attribute_list,
1129 0, NELEM(config_base_attribute_list)-1,
1130 attr);
1131 }
1132 if (index >= 0) {
1133 // attribute found, check if this config could match
1134 int cfgMgtIndex = binarySearch<config_management_t>(
1135 gConfigManagement,
1136 0, NELEM(gConfigManagement)-1,
1137 attr);
1138 if (cfgMgtIndex >= 0) {
1139 bool match = gConfigManagement[cfgMgtIndex].match(
1140 val, configFound[index].value);
1141 if (match) {
1142 // this config matches
1143 return 1;
1144 }
1145 } else {
1146 // attribute not found. this should NEVER happen.
1147 }
1148 } else {
1149 // error, this attribute doesn't exist
1150 }
1151 return 0;
1152 }
1153
makeCurrent(ogles_context_t * gl)1154 static int makeCurrent(ogles_context_t* gl)
1155 {
1156 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific();
1157 if (gl) {
1158 egl_context_t* c = egl_context_t::context(gl);
1159 if (c->flags & egl_context_t::IS_CURRENT) {
1160 if (current != gl) {
1161 // it is an error to set a context current, if it's already
1162 // current to another thread
1163 return -1;
1164 }
1165 } else {
1166 if (current) {
1167 // mark the current context as not current, and flush
1168 //glFlush();
1169 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT;
1170 }
1171 }
1172 if (!(c->flags & egl_context_t::IS_CURRENT)) {
1173 // The context is not current, make it current!
1174 setGlThreadSpecific(gl);
1175 c->flags |= egl_context_t::IS_CURRENT;
1176 }
1177 } else {
1178 if (current) {
1179 // mark the current context as not current, and flush
1180 //glFlush();
1181 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT;
1182 }
1183 // this thread has no context attached to it
1184 setGlThreadSpecific(0);
1185 }
1186 return 0;
1187 }
1188
getConfigAttrib(EGLDisplay dpy,EGLConfig config,EGLint attribute,EGLint * value)1189 static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config,
1190 EGLint attribute, EGLint *value)
1191 {
1192 size_t numConfigs = NELEM(gConfigs);
1193 int index = (int)config;
1194 if (uint32_t(index) >= numConfigs)
1195 return setError(EGL_BAD_CONFIG, EGL_FALSE);
1196
1197 int attrIndex;
1198 attrIndex = binarySearch<config_pair_t>(
1199 gConfigs[index].array,
1200 0, gConfigs[index].size-1,
1201 attribute);
1202 if (attrIndex>=0) {
1203 *value = gConfigs[index].array[attrIndex].value;
1204 return EGL_TRUE;
1205 }
1206
1207 attrIndex = binarySearch<config_pair_t>(
1208 config_base_attribute_list,
1209 0, NELEM(config_base_attribute_list)-1,
1210 attribute);
1211 if (attrIndex>=0) {
1212 *value = config_base_attribute_list[attrIndex].value;
1213 return EGL_TRUE;
1214 }
1215 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
1216 }
1217
createWindowSurface(EGLDisplay dpy,EGLConfig config,NativeWindowType window,const EGLint * attrib_list)1218 static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config,
1219 NativeWindowType window, const EGLint *attrib_list)
1220 {
1221 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1222 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1223 if (window == 0)
1224 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1225
1226 EGLint surfaceType;
1227 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
1228 return EGL_FALSE;
1229
1230 if (!(surfaceType & EGL_WINDOW_BIT))
1231 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1232
1233 if (((ANativeWindow*)(window))->common.magic !=
1234 ANDROID_NATIVE_WINDOW_MAGIC) {
1235 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
1236 }
1237
1238 EGLint configID;
1239 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
1240 return EGL_FALSE;
1241
1242 int32_t depthFormat;
1243 int32_t pixelFormat;
1244 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
1245 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1246 }
1247
1248 // FIXME: we don't have access to the pixelFormat here just yet.
1249 // (it's possible that the surface is not fully initialized)
1250 // maybe this should be done after the page-flip
1251 //if (EGLint(info.format) != pixelFormat)
1252 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1253
1254 egl_surface_t* surface;
1255 surface = new egl_window_surface_v2_t(dpy, config, depthFormat,
1256 (ANativeWindow*)(window));
1257
1258 if (!surface->initCheck()) {
1259 // there was a problem in the ctor, the error
1260 // flag has been set.
1261 delete surface;
1262 surface = 0;
1263 }
1264 return surface;
1265 }
1266
createPbufferSurface(EGLDisplay dpy,EGLConfig config,const EGLint * attrib_list)1267 static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config,
1268 const EGLint *attrib_list)
1269 {
1270 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1271 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1272
1273 EGLint surfaceType;
1274 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
1275 return EGL_FALSE;
1276
1277 if (!(surfaceType & EGL_PBUFFER_BIT))
1278 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1279
1280 EGLint configID;
1281 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
1282 return EGL_FALSE;
1283
1284 int32_t depthFormat;
1285 int32_t pixelFormat;
1286 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
1287 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
1288 }
1289
1290 int32_t w = 0;
1291 int32_t h = 0;
1292 while (attrib_list[0]) {
1293 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1];
1294 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1];
1295 attrib_list+=2;
1296 }
1297
1298 egl_surface_t* surface =
1299 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat);
1300
1301 if (!surface->initCheck()) {
1302 // there was a problem in the ctor, the error
1303 // flag has been set.
1304 delete surface;
1305 surface = 0;
1306 }
1307 return surface;
1308 }
1309
1310 // ----------------------------------------------------------------------------
1311 }; // namespace android
1312 // ----------------------------------------------------------------------------
1313
1314 using namespace android;
1315
1316 // ----------------------------------------------------------------------------
1317 // Initialization
1318 // ----------------------------------------------------------------------------
1319
eglGetDisplay(NativeDisplayType display)1320 EGLDisplay eglGetDisplay(NativeDisplayType display)
1321 {
1322 #ifndef HAVE_ANDROID_OS
1323 // this just needs to be done once
1324 if (gl::gGLKey == -1) {
1325 pthread_mutex_lock(&gInitMutex);
1326 if (gl::gGLKey == -1)
1327 pthread_key_create(&gl::gGLKey, NULL);
1328 pthread_mutex_unlock(&gInitMutex);
1329 }
1330 #endif
1331 if (display == EGL_DEFAULT_DISPLAY) {
1332 EGLDisplay dpy = (EGLDisplay)1;
1333 egl_display_t& d = egl_display_t::get_display(dpy);
1334 d.type = display;
1335 return dpy;
1336 }
1337 return EGL_NO_DISPLAY;
1338 }
1339
eglInitialize(EGLDisplay dpy,EGLint * major,EGLint * minor)1340 EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
1341 {
1342 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1343 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1344
1345 EGLBoolean res = EGL_TRUE;
1346 egl_display_t& d = egl_display_t::get_display(dpy);
1347
1348 if (android_atomic_inc(&d.initialized) == 0) {
1349 // initialize stuff here if needed
1350 //pthread_mutex_lock(&gInitMutex);
1351 //pthread_mutex_unlock(&gInitMutex);
1352 }
1353
1354 if (res == EGL_TRUE) {
1355 if (major != NULL) *major = VERSION_MAJOR;
1356 if (minor != NULL) *minor = VERSION_MINOR;
1357 }
1358 return res;
1359 }
1360
eglTerminate(EGLDisplay dpy)1361 EGLBoolean eglTerminate(EGLDisplay dpy)
1362 {
1363 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1364 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1365
1366 EGLBoolean res = EGL_TRUE;
1367 egl_display_t& d = egl_display_t::get_display(dpy);
1368 if (android_atomic_dec(&d.initialized) == 1) {
1369 // TODO: destroy all resources (surfaces, contexts, etc...)
1370 //pthread_mutex_lock(&gInitMutex);
1371 //pthread_mutex_unlock(&gInitMutex);
1372 }
1373 return res;
1374 }
1375
1376 // ----------------------------------------------------------------------------
1377 // configuration
1378 // ----------------------------------------------------------------------------
1379
eglGetConfigs(EGLDisplay dpy,EGLConfig * configs,EGLint config_size,EGLint * num_config)1380 EGLBoolean eglGetConfigs( EGLDisplay dpy,
1381 EGLConfig *configs,
1382 EGLint config_size, EGLint *num_config)
1383 {
1384 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1385 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1386
1387 GLint numConfigs = NELEM(gConfigs);
1388 if (!configs) {
1389 *num_config = numConfigs;
1390 return EGL_TRUE;
1391 }
1392 GLint i;
1393 for (i=0 ; i<numConfigs && i<config_size ; i++) {
1394 *configs++ = (EGLConfig)i;
1395 }
1396 *num_config = i;
1397 return EGL_TRUE;
1398 }
1399
eglChooseConfig(EGLDisplay dpy,const EGLint * attrib_list,EGLConfig * configs,EGLint config_size,EGLint * num_config)1400 EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list,
1401 EGLConfig *configs, EGLint config_size,
1402 EGLint *num_config)
1403 {
1404 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1405 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1406
1407 if (ggl_unlikely(num_config==0)) {
1408 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1409 }
1410
1411 if (ggl_unlikely(attrib_list==0)) {
1412 /*
1413 * A NULL attrib_list should be treated as though it was an empty
1414 * one (terminated with EGL_NONE) as defined in
1415 * section 3.4.1 "Querying Configurations" in the EGL specification.
1416 */
1417 static const EGLint dummy = EGL_NONE;
1418 attrib_list = &dummy;
1419 }
1420
1421 int numAttributes = 0;
1422 int numConfigs = NELEM(gConfigs);
1423 uint32_t possibleMatch = (1<<numConfigs)-1;
1424 while (possibleMatch && *attrib_list != EGL_NONE) {
1425 numAttributes++;
1426 EGLint attr = *attrib_list++;
1427 EGLint val = *attrib_list++;
1428 for (int i=0 ; possibleMatch && i<numConfigs ; i++) {
1429 if (!(possibleMatch & (1<<i)))
1430 continue;
1431 if (isAttributeMatching(i, attr, val) == 0) {
1432 possibleMatch &= ~(1<<i);
1433 }
1434 }
1435 }
1436
1437 // now, handle the attributes which have a useful default value
1438 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) {
1439 // see if this attribute was specified, if not, apply its
1440 // default value
1441 if (binarySearch<config_pair_t>(
1442 (config_pair_t const*)attrib_list,
1443 0, numAttributes-1,
1444 config_defaults[j].key) < 0) {
1445 for (int i=0 ; possibleMatch && i<numConfigs ; i++) {
1446 if (!(possibleMatch & (1<<i)))
1447 continue;
1448 if (isAttributeMatching(i,
1449 config_defaults[j].key,
1450 config_defaults[j].value) == 0) {
1451 possibleMatch &= ~(1<<i);
1452 }
1453 }
1454 }
1455 }
1456
1457 // return the configurations found
1458 int n=0;
1459 if (possibleMatch) {
1460 if (configs) {
1461 for (int i=0 ; config_size && i<numConfigs ; i++) {
1462 if (possibleMatch & (1<<i)) {
1463 *configs++ = (EGLConfig)i;
1464 config_size--;
1465 n++;
1466 }
1467 }
1468 } else {
1469 for (int i=0 ; i<numConfigs ; i++) {
1470 if (possibleMatch & (1<<i)) {
1471 n++;
1472 }
1473 }
1474 }
1475 }
1476 *num_config = n;
1477 return EGL_TRUE;
1478 }
1479
eglGetConfigAttrib(EGLDisplay dpy,EGLConfig config,EGLint attribute,EGLint * value)1480 EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
1481 EGLint attribute, EGLint *value)
1482 {
1483 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1484 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1485
1486 return getConfigAttrib(dpy, config, attribute, value);
1487 }
1488
1489 // ----------------------------------------------------------------------------
1490 // surfaces
1491 // ----------------------------------------------------------------------------
1492
eglCreateWindowSurface(EGLDisplay dpy,EGLConfig config,NativeWindowType window,const EGLint * attrib_list)1493 EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config,
1494 NativeWindowType window,
1495 const EGLint *attrib_list)
1496 {
1497 return createWindowSurface(dpy, config, window, attrib_list);
1498 }
1499
eglDestroySurface(EGLDisplay dpy,EGLSurface eglSurface)1500 EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface)
1501 {
1502 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1503 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1504 if (eglSurface != EGL_NO_SURFACE) {
1505 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) );
1506 if (!surface->isValid())
1507 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1508 if (surface->dpy != dpy)
1509 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1510 if (surface->ctx) {
1511 // FIXME: this surface is current check what the spec says
1512 surface->disconnect();
1513 surface->ctx = 0;
1514 }
1515 delete surface;
1516 }
1517 return EGL_TRUE;
1518 }
1519
eglQuerySurface(EGLDisplay dpy,EGLSurface eglSurface,EGLint attribute,EGLint * value)1520 EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface,
1521 EGLint attribute, EGLint *value)
1522 {
1523 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1524 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1525 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface);
1526 if (!surface->isValid())
1527 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1528 if (surface->dpy != dpy)
1529 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1530
1531 EGLBoolean ret = EGL_TRUE;
1532 switch (attribute) {
1533 case EGL_CONFIG_ID:
1534 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value);
1535 break;
1536 case EGL_WIDTH:
1537 *value = surface->getWidth();
1538 break;
1539 case EGL_HEIGHT:
1540 *value = surface->getHeight();
1541 break;
1542 case EGL_LARGEST_PBUFFER:
1543 // not modified for a window or pixmap surface
1544 break;
1545 case EGL_TEXTURE_FORMAT:
1546 *value = EGL_NO_TEXTURE;
1547 break;
1548 case EGL_TEXTURE_TARGET:
1549 *value = EGL_NO_TEXTURE;
1550 break;
1551 case EGL_MIPMAP_TEXTURE:
1552 *value = EGL_FALSE;
1553 break;
1554 case EGL_MIPMAP_LEVEL:
1555 *value = 0;
1556 break;
1557 case EGL_RENDER_BUFFER:
1558 // TODO: return the real RENDER_BUFFER here
1559 *value = EGL_BACK_BUFFER;
1560 break;
1561 case EGL_HORIZONTAL_RESOLUTION:
1562 // pixel/mm * EGL_DISPLAY_SCALING
1563 *value = surface->getHorizontalResolution();
1564 break;
1565 case EGL_VERTICAL_RESOLUTION:
1566 // pixel/mm * EGL_DISPLAY_SCALING
1567 *value = surface->getVerticalResolution();
1568 break;
1569 case EGL_PIXEL_ASPECT_RATIO: {
1570 // w/h * EGL_DISPLAY_SCALING
1571 int wr = surface->getHorizontalResolution();
1572 int hr = surface->getVerticalResolution();
1573 *value = (wr * EGL_DISPLAY_SCALING) / hr;
1574 }
1575 break;
1576 case EGL_SWAP_BEHAVIOR:
1577 *value = surface->getSwapBehavior();
1578 break;
1579 default:
1580 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
1581 }
1582 return ret;
1583 }
1584
eglCreateContext(EGLDisplay dpy,EGLConfig config,EGLContext share_list,const EGLint * attrib_list)1585 EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config,
1586 EGLContext share_list, const EGLint *attrib_list)
1587 {
1588 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1589 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
1590
1591 ogles_context_t* gl = new (ogles_context_t);
1592 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT);
1593
1594 gl->rasterizer.base = new egl_context_t;
1595 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base);
1596 c->flags = egl_context_t::NEVER_CURRENT;
1597 c->dpy = dpy;
1598 c->config = config;
1599 c->read = 0;
1600 c->draw = 0;
1601 return (EGLContext)gl;
1602 }
1603
eglDestroyContext(EGLDisplay dpy,EGLContext ctx)1604 EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
1605 {
1606 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1607 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1608 egl_context_t* c = egl_context_t::context(ctx);
1609 if (c->flags & egl_context_t::IS_CURRENT)
1610 setGlThreadSpecific(0);
1611 delete ((ogles_context_t*)ctx);
1612 return EGL_TRUE;
1613 }
1614
1615 #define __LINE_STRING_0__(s) #s
1616 #define __LINE_STRING_1__(s) __LINE_STRING_0__(s)
1617 #define __LINE_STRING__ __LINE_STRING_1__(__LINE__)
1618
eglMakeCurrent(EGLDisplay dpy,EGLSurface draw,EGLSurface read,EGLContext ctx)1619 EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw,
1620 EGLSurface read, EGLContext ctx)
1621 {
1622 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1623 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1624 if (draw) {
1625 egl_surface_t* s = (egl_surface_t*)draw;
1626 if (!s->isValid())
1627 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1628 if (s->dpy != dpy)
1629 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1630 // TODO: check that draw is compatible with the context
1631 }
1632 if (read && read!=draw) {
1633 egl_surface_t* s = (egl_surface_t*)read;
1634 if (!s->isValid())
1635 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1636 if (s->dpy != dpy)
1637 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1638 // TODO: check that read is compatible with the context
1639 }
1640
1641 EGLContext current_ctx = EGL_NO_CONTEXT;
1642
1643 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT))
1644 return setError(EGL_BAD_MATCH, EGL_FALSE);
1645
1646 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT))
1647 return setError(EGL_BAD_MATCH, EGL_FALSE);
1648
1649 if (ctx == EGL_NO_CONTEXT) {
1650 // if we're detaching, we need the current context
1651 current_ctx = (EGLContext)getGlThreadSpecific();
1652 } else {
1653 egl_context_t* c = egl_context_t::context(ctx);
1654 egl_surface_t* d = (egl_surface_t*)draw;
1655 egl_surface_t* r = (egl_surface_t*)read;
1656 if ((d && d->ctx && d->ctx != ctx) ||
1657 (r && r->ctx && r->ctx != ctx)) {
1658 // one of the surface is bound to a context in another thread
1659 return setError(EGL_BAD_ACCESS, EGL_FALSE);
1660 }
1661 }
1662
1663 puts("eglMakeCurrent:"__LINE_STRING__);
1664 ogles_context_t* gl = (ogles_context_t*)ctx;
1665 if (makeCurrent(gl) == 0) {
1666 if (ctx) {
1667 egl_context_t* c = egl_context_t::context(ctx);
1668 egl_surface_t* d = (egl_surface_t*)draw;
1669 egl_surface_t* r = (egl_surface_t*)read;
1670
1671 if (c->draw) {
1672 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw);
1673 s->disconnect();
1674 }
1675
1676 c->draw = draw;
1677 c->read = read;
1678 puts("eglMakeCurrent:"__LINE_STRING__);
1679 if (d) {
1680 if (d->connect() == EGL_FALSE) {
1681 return EGL_FALSE;
1682 }
1683 d->ctx = ctx;
1684 d->bindDrawSurface(gl);
1685 }
1686 if (r) {
1687 // FIXME: lock/connect the read surface too
1688 r->ctx = ctx;
1689 //r->bindReadSurface(gl);
1690 }
1691 } else {
1692 puts("eglMakeCurrent:"__LINE_STRING__);
1693 // if surfaces were bound to the context bound to this thread
1694 // mark then as unbound.
1695 if (current_ctx) {
1696 egl_context_t* c = egl_context_t::context(current_ctx);
1697 egl_surface_t* d = (egl_surface_t*)c->draw;
1698 egl_surface_t* r = (egl_surface_t*)c->read;
1699 if (d) {
1700 c->draw = 0;
1701 d->ctx = EGL_NO_CONTEXT;
1702 d->disconnect();
1703 }
1704 if (r) {
1705 c->read = 0;
1706 r->ctx = EGL_NO_CONTEXT;
1707 // FIXME: unlock/disconnect the read surface too
1708 }
1709 }
1710 }
1711 return EGL_TRUE;
1712 }
1713 return setError(EGL_BAD_ACCESS, EGL_FALSE);
1714 }
1715
eglGetCurrentContext(void)1716 EGLContext eglGetCurrentContext(void)
1717 {
1718 // eglGetCurrentContext returns the current EGL rendering context,
1719 // as specified by eglMakeCurrent. If no context is current,
1720 // EGL_NO_CONTEXT is returned.
1721 return (EGLContext)getGlThreadSpecific();
1722 }
1723
eglGetCurrentSurface(EGLint readdraw)1724 EGLSurface eglGetCurrentSurface(EGLint readdraw)
1725 {
1726 // eglGetCurrentSurface returns the read or draw surface attached
1727 // to the current EGL rendering context, as specified by eglMakeCurrent.
1728 // If no context is current, EGL_NO_SURFACE is returned.
1729 EGLContext ctx = (EGLContext)getGlThreadSpecific();
1730 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE;
1731 egl_context_t* c = egl_context_t::context(ctx);
1732 if (readdraw == EGL_READ) {
1733 return c->read;
1734 } else if (readdraw == EGL_DRAW) {
1735 return c->draw;
1736 }
1737 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
1738 }
1739
eglGetCurrentDisplay(void)1740 EGLDisplay eglGetCurrentDisplay(void)
1741 {
1742 // eglGetCurrentDisplay returns the current EGL display connection
1743 // for the current EGL rendering context, as specified by eglMakeCurrent.
1744 // If no context is current, EGL_NO_DISPLAY is returned.
1745 EGLContext ctx = (EGLContext)getGlThreadSpecific();
1746 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY;
1747 egl_context_t* c = egl_context_t::context(ctx);
1748 return c->dpy;
1749 }
1750
eglQueryContext(EGLDisplay dpy,EGLContext ctx,EGLint attribute,EGLint * value)1751 EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx,
1752 EGLint attribute, EGLint *value)
1753 {
1754 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1755 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1756 egl_context_t* c = egl_context_t::context(ctx);
1757 switch (attribute) {
1758 case EGL_CONFIG_ID:
1759 // Returns the ID of the EGL frame buffer configuration with
1760 // respect to which the context was created
1761 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value);
1762 }
1763 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
1764 }
1765
eglWaitNative(EGLint engine)1766 EGLBoolean eglWaitNative(EGLint engine)
1767 {
1768 return EGL_TRUE;
1769 }
1770
eglSwapBuffers(EGLDisplay dpy,EGLSurface draw)1771 EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
1772 {
1773 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1774 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1775
1776 egl_surface_t* d = static_cast<egl_surface_t*>(draw);
1777 if (!d->isValid())
1778 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1779 if (d->dpy != dpy)
1780 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1781
1782 // post the surface
1783 d->swapBuffers();
1784
1785 // if it's bound to a context, update the buffer
1786 if (d->ctx != EGL_NO_CONTEXT) {
1787 d->bindDrawSurface((ogles_context_t*)d->ctx);
1788 // if this surface is also the read surface of the context
1789 // it is bound to, make sure to update the read buffer as well.
1790 // The EGL spec is a little unclear about this.
1791 egl_context_t* c = egl_context_t::context(d->ctx);
1792 if (c->read == draw) {
1793 //d->bindReadSurface((ogles_context_t*)d->ctx);
1794 }
1795 }
1796
1797 return EGL_TRUE;
1798 }
1799
eglCopyBuffers(EGLDisplay dpy,EGLSurface surface,NativePixmapType target)1800 EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface,
1801 NativePixmapType target)
1802 {
1803 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1804 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1805 // TODO: eglCopyBuffers()
1806 return EGL_FALSE;
1807 }
1808
eglGetError(void)1809 EGLint eglGetError(void)
1810 {
1811 return getError();
1812 }
1813
eglQueryString(EGLDisplay dpy,EGLint name)1814 const char* eglQueryString(EGLDisplay dpy, EGLint name)
1815 {
1816 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1817 return setError(EGL_BAD_DISPLAY, (const char*)0);
1818
1819 switch (name) {
1820 case EGL_VENDOR:
1821 return gVendorString;
1822 case EGL_VERSION:
1823 return gVersionString;
1824 case EGL_EXTENSIONS:
1825 return gExtensionsString;
1826 case EGL_CLIENT_APIS:
1827 return gClientApiString;
1828 }
1829 return setError(EGL_BAD_PARAMETER, (const char *)0);
1830 }
1831
1832 // ----------------------------------------------------------------------------
1833 // ANDROID extensions
1834 // ----------------------------------------------------------------------------
1835
eglSetSwapRectangleANDROID(EGLDisplay dpy,EGLSurface draw,EGLint left,EGLint top,EGLint width,EGLint height)1836 EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw,
1837 EGLint left, EGLint top, EGLint width, EGLint height)
1838 {
1839 if (egl_display_t::is_valid(dpy) == EGL_FALSE)
1840 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1841
1842 egl_surface_t* d = static_cast<egl_surface_t*>(draw);
1843 if (!d->isValid())
1844 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1845 if (d->dpy != dpy)
1846 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1847
1848 // post the surface
1849 d->setSwapRectangle(left, top, width, height);
1850
1851 return EGL_TRUE;
1852 }
1853
1854 static struct S
1855 {
1856 sp<SurfaceComposerClient> client;
1857 sp<SurfaceControl> surfaceControl;
1858 sp<Surface> surface;
~SS1859 ~S()
1860 {
1861 client->dispose();
1862 }
1863 } * s = NULL;
1864 static ANativeWindow * window;
1865 static EGLDisplay display;
1866 static EGLContext eglCtx;
1867 static EGLSurface drawSurface;
1868
SetupDrawingSurface(unsigned * width,unsigned * height,unsigned * bpp)1869 extern "C" int SetupDrawingSurface(unsigned * width, unsigned * height, unsigned * bpp)
1870 {
1871 s = new S;
1872 // create a client to surfaceflinger
1873 s->client = new SurfaceComposerClient();
1874
1875 s->surfaceControl = s->client->createSurface(getpid(), 0, 640, 400, PIXEL_FORMAT_RGBA_8888);
1876 SurfaceComposerClient::openGlobalTransaction();
1877 s->surfaceControl->setLayer(25000);
1878 s->surfaceControl->show();
1879 SurfaceComposerClient::closeGlobalTransaction();
1880
1881 s->surface = s->surfaceControl->getSurface();
1882 window = s->surface.get();
1883
1884 printf("window=%p\n", window);
1885 assert(window);
1886 display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
1887
1888 EGLint attrib_list[] = {
1889 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
1890 EGL_BUFFER_SIZE, 32,
1891 EGL_RED_SIZE, 8,
1892 EGL_GREEN_SIZE, 8,
1893 EGL_BLUE_SIZE, 8,
1894 EGL_NONE
1895 };
1896
1897 EGLConfig configs[12] = {0};
1898 int num_config = -1;
1899 eglChooseConfig(display, attrib_list, configs, sizeof(configs) / sizeof(*configs), &num_config);
1900 printf("eglChooseConfig %d \n", num_config);
1901
1902 eglCtx = eglCreateContext(display, configs[0], NULL, NULL);
1903 printf("eglCtx=%p \n", eglCtx);
1904 android::global_ctx = (android::ogles_context_t *)eglCtx;
1905
1906 drawSurface = eglCreateWindowSurface(display, configs[0], window, NULL);
1907 printf("drawSurface=%p \n", drawSurface);
1908
1909 EGLBoolean ret = eglMakeCurrent(display, drawSurface, drawSurface, eglCtx);
1910 printf("eglMakeCurrent=%d \n", ret);
1911 assert(EGL_TRUE == ret);
1912
1913 ret = eglSwapBuffers(display, drawSurface);
1914 printf("eglSwapBuffers=%d \n", ret);
1915 assert(EGL_TRUE == ret);
1916
1917 ogles_context_t * gl = (ogles_context_t *)eglCtx;
1918 *width = gl->width;
1919 *height = gl->height;
1920 assert(PIXEL_FORMAT_RGBA_8888 == gl->format);
1921 *bpp = 32;
1922
1923 puts("end SetupDrawingSurface");
1924 return 0;
1925 }
1926
PresentDrawingSurface()1927 extern "C" void * PresentDrawingSurface()
1928 {
1929 EGLBoolean ret = eglSwapBuffers(display, drawSurface);
1930 //printf("eglSwapBuffers=%d \n", ret);
1931 assert(EGL_TRUE == ret);
1932
1933 ogles_context_t * gl = (ogles_context_t *)eglCtx;
1934 assert(gl->width == gl->stride);
1935 assert(PIXEL_FORMAT_RGBA_8888 == gl->format);
1936 return gl->bits;
1937 }
1938
DisposeDrawingSurface()1939 extern "C" void DisposeDrawingSurface()
1940 {
1941 eglDestroySurface(display, drawSurface);
1942 eglDestroyContext(display, eglCtx);
1943 delete s;
1944 s = NULL;
1945 puts("DisposeDrawingSurface");
1946 }
1947
1948 #endif // #ifdef __arm__
1949