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replicant-frameworks_native/opengl/libagl/egl.cpp
Ari Hirvonen 551dc26ebd libagl: eglSwapInterval fix 
SW egl returned always EGL_FALSE even when the display was valid.
This made calls to eglSwapInterval to fail on HW since the wrapper
fails if either SW or HW egl fails.

Letting SW eglSwapInterval to return true when display is valid is
ok since spec says that interval parameter is silently clamped.

Change-Id: Ib4aa1dbfccf510a0f36621796e79a4d46852ee6a
2010-10-06 16:44:37 -07:00

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/*
**
** Copyright 2007 The Android Open Source Project
**
** Licensed under the Apache License Version 2.0(the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing software
** distributed under the License is distributed on an "AS IS" BASIS
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include <assert.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <cutils/log.h>
#include <cutils/atomic.h>
#include <utils/threads.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES/gl.h>
#include <GLES/glext.h>
#include <pixelflinger/format.h>
#include <pixelflinger/pixelflinger.h>
#include <private/ui/android_natives_priv.h>
#include <private/ui/sw_gralloc_handle.h>
#include <hardware/copybit.h>
#include "context.h"
#include "state.h"
#include "texture.h"
#include "matrix.h"
#undef NELEM
#define NELEM(x) (sizeof(x)/sizeof(*(x)))
// ----------------------------------------------------------------------------
namespace android {
// ----------------------------------------------------------------------------
const unsigned int NUM_DISPLAYS = 1;
static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_key_t gEGLErrorKey = -1;
#ifndef HAVE_ANDROID_OS
namespace gl {
pthread_key_t gGLKey = -1;
}; // namespace gl
#endif
template<typename T>
static T setError(GLint error, T returnValue) {
if (ggl_unlikely(gEGLErrorKey == -1)) {
pthread_mutex_lock(&gErrorKeyMutex);
if (gEGLErrorKey == -1)
pthread_key_create(&gEGLErrorKey, NULL);
pthread_mutex_unlock(&gErrorKeyMutex);
}
pthread_setspecific(gEGLErrorKey, (void*)error);
return returnValue;
}
static GLint getError() {
if (ggl_unlikely(gEGLErrorKey == -1))
return EGL_SUCCESS;
GLint error = (GLint)pthread_getspecific(gEGLErrorKey);
pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS);
return error;
}
// ----------------------------------------------------------------------------
struct egl_display_t
{
egl_display_t() : type(0), initialized(0) { }
static egl_display_t& get_display(EGLDisplay dpy);
static EGLBoolean is_valid(EGLDisplay dpy) {
return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE;
}
NativeDisplayType type;
volatile int32_t initialized;
};
static egl_display_t gDisplays[NUM_DISPLAYS];
egl_display_t& egl_display_t::get_display(EGLDisplay dpy) {
return gDisplays[uintptr_t(dpy)-1U];
}
struct egl_context_t {
enum {
IS_CURRENT = 0x00010000,
NEVER_CURRENT = 0x00020000
};
uint32_t flags;
EGLDisplay dpy;
EGLConfig config;
EGLSurface read;
EGLSurface draw;
static inline egl_context_t* context(EGLContext ctx) {
ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx);
return static_cast<egl_context_t*>(gl->rasterizer.base);
}
};
// ----------------------------------------------------------------------------
struct egl_surface_t
{
enum {
PAGE_FLIP = 0x00000001,
MAGIC = 0x31415265
};
uint32_t magic;
EGLDisplay dpy;
EGLConfig config;
EGLContext ctx;
egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat);
virtual ~egl_surface_t();
bool isValid() const;
virtual bool initCheck() const = 0;
virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0;
virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0;
virtual EGLBoolean connect() { return EGL_TRUE; }
virtual void disconnect() {}
virtual EGLint getWidth() const = 0;
virtual EGLint getHeight() const = 0;
virtual EGLint getHorizontalResolution() const;
virtual EGLint getVerticalResolution() const;
virtual EGLint getRefreshRate() const;
virtual EGLint getSwapBehavior() const;
virtual EGLBoolean swapBuffers();
virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h);
protected:
GGLSurface depth;
};
egl_surface_t::egl_surface_t(EGLDisplay dpy,
EGLConfig config,
int32_t depthFormat)
: magic(MAGIC), dpy(dpy), config(config), ctx(0)
{
depth.version = sizeof(GGLSurface);
depth.data = 0;
depth.format = depthFormat;
}
egl_surface_t::~egl_surface_t()
{
magic = 0;
free(depth.data);
}
bool egl_surface_t::isValid() const {
LOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this);
return magic == MAGIC;
}
EGLBoolean egl_surface_t::swapBuffers() {
return EGL_FALSE;
}
EGLint egl_surface_t::getHorizontalResolution() const {
return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
}
EGLint egl_surface_t::getVerticalResolution() const {
return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
}
EGLint egl_surface_t::getRefreshRate() const {
return (60 * EGL_DISPLAY_SCALING);
}
EGLint egl_surface_t::getSwapBehavior() const {
return EGL_BUFFER_PRESERVED;
}
EGLBoolean egl_surface_t::setSwapRectangle(
EGLint l, EGLint t, EGLint w, EGLint h)
{
return EGL_FALSE;
}
// ----------------------------------------------------------------------------
struct egl_window_surface_v2_t : public egl_surface_t
{
egl_window_surface_v2_t(
EGLDisplay dpy, EGLConfig config,
int32_t depthFormat,
ANativeWindow* window);
~egl_window_surface_v2_t();
virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails
virtual EGLBoolean swapBuffers();
virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
virtual EGLBoolean connect();
virtual void disconnect();
virtual EGLint getWidth() const { return width; }
virtual EGLint getHeight() const { return height; }
virtual EGLint getHorizontalResolution() const;
virtual EGLint getVerticalResolution() const;
virtual EGLint getRefreshRate() const;
virtual EGLint getSwapBehavior() const;
virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h);
private:
status_t lock(android_native_buffer_t* buf, int usage, void** vaddr);
status_t unlock(android_native_buffer_t* buf);
ANativeWindow* nativeWindow;
android_native_buffer_t* buffer;
android_native_buffer_t* previousBuffer;
gralloc_module_t const* module;
copybit_device_t* blitengine;
int width;
int height;
void* bits;
GGLFormat const* pixelFormatTable;
struct Rect {
inline Rect() { };
inline Rect(int32_t w, int32_t h)
: left(0), top(0), right(w), bottom(h) { }
inline Rect(int32_t l, int32_t t, int32_t r, int32_t b)
: left(l), top(t), right(r), bottom(b) { }
Rect& andSelf(const Rect& r) {
left = max(left, r.left);
top = max(top, r.top);
right = min(right, r.right);
bottom = min(bottom, r.bottom);
return *this;
}
bool isEmpty() const {
return (left>=right || top>=bottom);
}
void dump(char const* what) {
LOGD("%s { %5d, %5d, w=%5d, h=%5d }",
what, left, top, right-left, bottom-top);
}
int32_t left;
int32_t top;
int32_t right;
int32_t bottom;
};
struct Region {
inline Region() : count(0) { }
typedef Rect const* const_iterator;
const_iterator begin() const { return storage; }
const_iterator end() const { return storage+count; }
static Region subtract(const Rect& lhs, const Rect& rhs) {
Region reg;
Rect* storage = reg.storage;
if (!lhs.isEmpty()) {
if (lhs.top < rhs.top) { // top rect
storage->left = lhs.left;
storage->top = lhs.top;
storage->right = lhs.right;
storage->bottom = rhs.top;
storage++;
}
const int32_t top = max(lhs.top, rhs.top);
const int32_t bot = min(lhs.bottom, rhs.bottom);
if (top < bot) {
if (lhs.left < rhs.left) { // left-side rect
storage->left = lhs.left;
storage->top = top;
storage->right = rhs.left;
storage->bottom = bot;
storage++;
}
if (lhs.right > rhs.right) { // right-side rect
storage->left = rhs.right;
storage->top = top;
storage->right = lhs.right;
storage->bottom = bot;
storage++;
}
}
if (lhs.bottom > rhs.bottom) { // bottom rect
storage->left = lhs.left;
storage->top = rhs.bottom;
storage->right = lhs.right;
storage->bottom = lhs.bottom;
storage++;
}
reg.count = storage - reg.storage;
}
return reg;
}
bool isEmpty() const {
return count<=0;
}
private:
Rect storage[4];
ssize_t count;
};
struct region_iterator : public copybit_region_t {
region_iterator(const Region& region)
: b(region.begin()), e(region.end()) {
this->next = iterate;
}
private:
static int iterate(copybit_region_t const * self, copybit_rect_t* rect) {
region_iterator const* me = static_cast<region_iterator const*>(self);
if (me->b != me->e) {
*reinterpret_cast<Rect*>(rect) = *me->b++;
return 1;
}
return 0;
}
mutable Region::const_iterator b;
Region::const_iterator const e;
};
void copyBlt(
android_native_buffer_t* dst, void* dst_vaddr,
android_native_buffer_t* src, void const* src_vaddr,
const Region& clip);
Rect dirtyRegion;
Rect oldDirtyRegion;
};
egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy,
EGLConfig config,
int32_t depthFormat,
ANativeWindow* window)
: egl_surface_t(dpy, config, depthFormat),
nativeWindow(window), buffer(0), previousBuffer(0), module(0),
blitengine(0), bits(NULL)
{
hw_module_t const* pModule;
hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule);
module = reinterpret_cast<gralloc_module_t const*>(pModule);
if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &pModule) == 0) {
copybit_open(pModule, &blitengine);
}
pixelFormatTable = gglGetPixelFormatTable();
// keep a reference on the window
nativeWindow->common.incRef(&nativeWindow->common);
nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width);
nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height);
}
egl_window_surface_v2_t::~egl_window_surface_v2_t() {
if (buffer) {
buffer->common.decRef(&buffer->common);
}
if (previousBuffer) {
previousBuffer->common.decRef(&previousBuffer->common);
}
nativeWindow->common.decRef(&nativeWindow->common);
if (blitengine) {
copybit_close(blitengine);
}
}
EGLBoolean egl_window_surface_v2_t::connect()
{
// we're intending to do software rendering
native_window_set_usage(nativeWindow,
GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
// dequeue a buffer
if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) {
return setError(EGL_BAD_ALLOC, EGL_FALSE);
}
// allocate a corresponding depth-buffer
width = buffer->width;
height = buffer->height;
if (depth.format) {
depth.width = width;
depth.height = height;
depth.stride = depth.width; // use the width here
depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
if (depth.data == 0) {
return setError(EGL_BAD_ALLOC, EGL_FALSE);
}
}
// keep a reference on the buffer
buffer->common.incRef(&buffer->common);
// Lock the buffer
nativeWindow->lockBuffer(nativeWindow, buffer);
// pin the buffer down
if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN |
GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) {
LOGE("connect() failed to lock buffer %p (%ux%u)",
buffer, buffer->width, buffer->height);
return setError(EGL_BAD_ACCESS, EGL_FALSE);
// FIXME: we should make sure we're not accessing the buffer anymore
}
return EGL_TRUE;
}
void egl_window_surface_v2_t::disconnect()
{
if (buffer && bits) {
bits = NULL;
unlock(buffer);
}
// enqueue the last frame
nativeWindow->queueBuffer(nativeWindow, buffer);
if (buffer) {
buffer->common.decRef(&buffer->common);
buffer = 0;
}
if (previousBuffer) {
previousBuffer->common.decRef(&previousBuffer->common);
previousBuffer = 0;
}
}
status_t egl_window_surface_v2_t::lock(
android_native_buffer_t* buf, int usage, void** vaddr)
{
int err;
if (sw_gralloc_handle_t::validate(buf->handle) < 0) {
err = module->lock(module, buf->handle,
usage, 0, 0, buf->width, buf->height, vaddr);
} else {
sw_gralloc_handle_t const* hnd =
reinterpret_cast<sw_gralloc_handle_t const*>(buf->handle);
*vaddr = (void*)hnd->base;
err = NO_ERROR;
}
return err;
}
status_t egl_window_surface_v2_t::unlock(android_native_buffer_t* buf)
{
if (!buf) return BAD_VALUE;
int err = NO_ERROR;
if (sw_gralloc_handle_t::validate(buf->handle) < 0) {
err = module->unlock(module, buf->handle);
}
return err;
}
void egl_window_surface_v2_t::copyBlt(
android_native_buffer_t* dst, void* dst_vaddr,
android_native_buffer_t* src, void const* src_vaddr,
const Region& clip)
{
// FIXME: use copybit if possible
// NOTE: dst and src must be the same format
status_t err = NO_ERROR;
copybit_device_t* const copybit = blitengine;
if (copybit) {
copybit_image_t simg;
simg.w = src->stride;
simg.h = src->height;
simg.format = src->format;
simg.handle = const_cast<native_handle_t*>(src->handle);
copybit_image_t dimg;
dimg.w = dst->stride;
dimg.h = dst->height;
dimg.format = dst->format;
dimg.handle = const_cast<native_handle_t*>(dst->handle);
copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0);
copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255);
copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_DISABLE);
region_iterator it(clip);
err = copybit->blit(copybit, &dimg, &simg, &it);
if (err != NO_ERROR) {
LOGE("copybit failed (%s)", strerror(err));
}
}
if (!copybit || err) {
Region::const_iterator cur = clip.begin();
Region::const_iterator end = clip.end();
const size_t bpp = pixelFormatTable[src->format].size;
const size_t dbpr = dst->stride * bpp;
const size_t sbpr = src->stride * bpp;
uint8_t const * const src_bits = (uint8_t const *)src_vaddr;
uint8_t * const dst_bits = (uint8_t *)dst_vaddr;
while (cur != end) {
const Rect& r(*cur++);
ssize_t w = r.right - r.left;
ssize_t h = r.bottom - r.top;
if (w <= 0 || h<=0) continue;
size_t size = w * bpp;
uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp;
uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp;
if (dbpr==sbpr && size==sbpr) {
size *= h;
h = 1;
}
do {
memcpy(d, s, size);
d += dbpr;
s += sbpr;
} while (--h > 0);
}
}
}
EGLBoolean egl_window_surface_v2_t::swapBuffers()
{
if (!buffer) {
return setError(EGL_BAD_ACCESS, EGL_FALSE);
}
/*
* Handle eglSetSwapRectangleANDROID()
* We copyback from the front buffer
*/
if (!dirtyRegion.isEmpty()) {
dirtyRegion.andSelf(Rect(buffer->width, buffer->height));
if (previousBuffer) {
const Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion));
if (!copyBack.isEmpty()) {
void* prevBits;
if (lock(previousBuffer,
GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) {
// copy from previousBuffer to buffer
copyBlt(buffer, bits, previousBuffer, prevBits, copyBack);
unlock(previousBuffer);
}
}
}
oldDirtyRegion = dirtyRegion;
}
if (previousBuffer) {
previousBuffer->common.decRef(&previousBuffer->common);
previousBuffer = 0;
}
unlock(buffer);
previousBuffer = buffer;
nativeWindow->queueBuffer(nativeWindow, buffer);
buffer = 0;
// dequeue a new buffer
if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) == NO_ERROR) {
// TODO: lockBuffer should rather be executed when the very first
// direct rendering occurs.
nativeWindow->lockBuffer(nativeWindow, buffer);
// reallocate the depth-buffer if needed
if ((width != buffer->width) || (height != buffer->height)) {
// TODO: we probably should reset the swap rect here
// if the window size has changed
width = buffer->width;
height = buffer->height;
if (depth.data) {
free(depth.data);
depth.width = width;
depth.height = height;
depth.stride = buffer->stride;
depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
if (depth.data == 0) {
setError(EGL_BAD_ALLOC, EGL_FALSE);
return EGL_FALSE;
}
}
}
// keep a reference on the buffer
buffer->common.incRef(&buffer->common);
// finally pin the buffer down
if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN |
GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) {
LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)",
buffer, buffer->width, buffer->height);
return setError(EGL_BAD_ACCESS, EGL_FALSE);
// FIXME: we should make sure we're not accessing the buffer anymore
}
} else {
return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
}
return EGL_TRUE;
}
EGLBoolean egl_window_surface_v2_t::setSwapRectangle(
EGLint l, EGLint t, EGLint w, EGLint h)
{
dirtyRegion = Rect(l, t, l+w, t+h);
return EGL_TRUE;
}
EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl)
{
GGLSurface buffer;
buffer.version = sizeof(GGLSurface);
buffer.width = this->buffer->width;
buffer.height = this->buffer->height;
buffer.stride = this->buffer->stride;
buffer.data = (GGLubyte*)bits;
buffer.format = this->buffer->format;
gl->rasterizer.procs.colorBuffer(gl, &buffer);
if (depth.data != gl->rasterizer.state.buffers.depth.data)
gl->rasterizer.procs.depthBuffer(gl, &depth);
return EGL_TRUE;
}
EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl)
{
GGLSurface buffer;
buffer.version = sizeof(GGLSurface);
buffer.width = this->buffer->width;
buffer.height = this->buffer->height;
buffer.stride = this->buffer->stride;
buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!!
buffer.format = this->buffer->format;
gl->rasterizer.procs.readBuffer(gl, &buffer);
return EGL_TRUE;
}
EGLint egl_window_surface_v2_t::getHorizontalResolution() const {
return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
}
EGLint egl_window_surface_v2_t::getVerticalResolution() const {
return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
}
EGLint egl_window_surface_v2_t::getRefreshRate() const {
return (60 * EGL_DISPLAY_SCALING); // FIXME
}
EGLint egl_window_surface_v2_t::getSwapBehavior() const
{
/*
* EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves
* the content of the swapped buffer.
*
* EGL_BUFFER_DESTROYED means that the content of the buffer is lost.
*
* However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED
* only applies to the area specified by eglSetSwapRectangleANDROID(), that
* is, everything outside of this area is preserved.
*
* This implementation of EGL assumes the later case.
*
*/
return EGL_BUFFER_DESTROYED;
}
// ----------------------------------------------------------------------------
struct egl_pixmap_surface_t : public egl_surface_t
{
egl_pixmap_surface_t(
EGLDisplay dpy, EGLConfig config,
int32_t depthFormat,
egl_native_pixmap_t const * pixmap);
virtual ~egl_pixmap_surface_t() { }
virtual bool initCheck() const { return !depth.format || depth.data!=0; }
virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
virtual EGLint getWidth() const { return nativePixmap.width; }
virtual EGLint getHeight() const { return nativePixmap.height; }
private:
egl_native_pixmap_t nativePixmap;
};
egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy,
EGLConfig config,
int32_t depthFormat,
egl_native_pixmap_t const * pixmap)
: egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap)
{
if (depthFormat) {
depth.width = pixmap->width;
depth.height = pixmap->height;
depth.stride = depth.width; // use the width here
depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
if (depth.data == 0) {
setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
}
}
}
EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl)
{
GGLSurface buffer;
buffer.version = sizeof(GGLSurface);
buffer.width = nativePixmap.width;
buffer.height = nativePixmap.height;
buffer.stride = nativePixmap.stride;
buffer.data = nativePixmap.data;
buffer.format = nativePixmap.format;
gl->rasterizer.procs.colorBuffer(gl, &buffer);
if (depth.data != gl->rasterizer.state.buffers.depth.data)
gl->rasterizer.procs.depthBuffer(gl, &depth);
return EGL_TRUE;
}
EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl)
{
GGLSurface buffer;
buffer.version = sizeof(GGLSurface);
buffer.width = nativePixmap.width;
buffer.height = nativePixmap.height;
buffer.stride = nativePixmap.stride;
buffer.data = nativePixmap.data;
buffer.format = nativePixmap.format;
gl->rasterizer.procs.readBuffer(gl, &buffer);
return EGL_TRUE;
}
// ----------------------------------------------------------------------------
struct egl_pbuffer_surface_t : public egl_surface_t
{
egl_pbuffer_surface_t(
EGLDisplay dpy, EGLConfig config, int32_t depthFormat,
int32_t w, int32_t h, int32_t f);
virtual ~egl_pbuffer_surface_t();
virtual bool initCheck() const { return pbuffer.data != 0; }
virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
virtual EGLint getWidth() const { return pbuffer.width; }
virtual EGLint getHeight() const { return pbuffer.height; }
private:
GGLSurface pbuffer;
};
egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy,
EGLConfig config, int32_t depthFormat,
int32_t w, int32_t h, int32_t f)
: egl_surface_t(dpy, config, depthFormat)
{
size_t size = w*h;
switch (f) {
case GGL_PIXEL_FORMAT_A_8: size *= 1; break;
case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break;
case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break;
case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break;
default:
LOGE("incompatible pixel format for pbuffer (format=%d)", f);
pbuffer.data = 0;
break;
}
pbuffer.version = sizeof(GGLSurface);
pbuffer.width = w;
pbuffer.height = h;
pbuffer.stride = w;
pbuffer.data = (GGLubyte*)malloc(size);
pbuffer.format = f;
if (depthFormat) {
depth.width = pbuffer.width;
depth.height = pbuffer.height;
depth.stride = depth.width; // use the width here
depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
if (depth.data == 0) {
setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
return;
}
}
}
egl_pbuffer_surface_t::~egl_pbuffer_surface_t() {
free(pbuffer.data);
}
EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl)
{
gl->rasterizer.procs.colorBuffer(gl, &pbuffer);
if (depth.data != gl->rasterizer.state.buffers.depth.data)
gl->rasterizer.procs.depthBuffer(gl, &depth);
return EGL_TRUE;
}
EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl)
{
gl->rasterizer.procs.readBuffer(gl, &pbuffer);
return EGL_TRUE;
}
// ----------------------------------------------------------------------------
struct config_pair_t {
GLint key;
GLint value;
};
struct configs_t {
const config_pair_t* array;
int size;
};
struct config_management_t {
GLint key;
bool (*match)(GLint reqValue, GLint confValue);
static bool atLeast(GLint reqValue, GLint confValue) {
return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue);
}
static bool exact(GLint reqValue, GLint confValue) {
return (reqValue == EGL_DONT_CARE) || (confValue == reqValue);
}
static bool mask(GLint reqValue, GLint confValue) {
return (confValue & reqValue) == reqValue;
}
};
// ----------------------------------------------------------------------------
#define VERSION_MAJOR 1
#define VERSION_MINOR 2
static char const * const gVendorString = "Google Inc.";
static char const * const gVersionString = "1.2 Android Driver 1.1.0";
static char const * const gClientApiString = "OpenGL ES";
static char const * const gExtensionsString =
"EGL_KHR_image_base "
// "KHR_image_pixmap "
"EGL_ANDROID_image_native_buffer "
"EGL_ANDROID_swap_rectangle "
;
// ----------------------------------------------------------------------------
struct extention_map_t {
const char * const name;
__eglMustCastToProperFunctionPointerType address;
};
static const extention_map_t gExtentionMap[] = {
{ "glDrawTexsOES",
(__eglMustCastToProperFunctionPointerType)&glDrawTexsOES },
{ "glDrawTexiOES",
(__eglMustCastToProperFunctionPointerType)&glDrawTexiOES },
{ "glDrawTexfOES",
(__eglMustCastToProperFunctionPointerType)&glDrawTexfOES },
{ "glDrawTexxOES",
(__eglMustCastToProperFunctionPointerType)&glDrawTexxOES },
{ "glDrawTexsvOES",
(__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES },
{ "glDrawTexivOES",
(__eglMustCastToProperFunctionPointerType)&glDrawTexivOES },
{ "glDrawTexfvOES",
(__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES },
{ "glDrawTexxvOES",
(__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES },
{ "glQueryMatrixxOES",
(__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES },
{ "glEGLImageTargetTexture2DOES",
(__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES },
{ "glEGLImageTargetRenderbufferStorageOES",
(__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES },
{ "glClipPlanef",
(__eglMustCastToProperFunctionPointerType)&glClipPlanef },
{ "glClipPlanex",
(__eglMustCastToProperFunctionPointerType)&glClipPlanex },
{ "glBindBuffer",
(__eglMustCastToProperFunctionPointerType)&glBindBuffer },
{ "glBufferData",
(__eglMustCastToProperFunctionPointerType)&glBufferData },
{ "glBufferSubData",
(__eglMustCastToProperFunctionPointerType)&glBufferSubData },
{ "glDeleteBuffers",
(__eglMustCastToProperFunctionPointerType)&glDeleteBuffers },
{ "glGenBuffers",
(__eglMustCastToProperFunctionPointerType)&glGenBuffers },
{ "eglCreateImageKHR",
(__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR },
{ "eglDestroyImageKHR",
(__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR },
{ "eglSetSwapRectangleANDROID",
(__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID },
};
/*
* In the lists below, attributes names MUST be sorted.
* Additionally, all configs must be sorted according to
* the EGL specification.
*/
static config_pair_t const config_base_attribute_list[] = {
{ EGL_STENCIL_SIZE, 0 },
{ EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG },
{ EGL_LEVEL, 0 },
{ EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS },
{ EGL_MAX_PBUFFER_PIXELS,
GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS },
{ EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS },
{ EGL_NATIVE_RENDERABLE, EGL_TRUE },
{ EGL_NATIVE_VISUAL_ID, 0 },
{ EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 },
{ EGL_SAMPLES, 0 },
{ EGL_SAMPLE_BUFFERS, 0 },
{ EGL_TRANSPARENT_TYPE, EGL_NONE },
{ EGL_TRANSPARENT_BLUE_VALUE, 0 },
{ EGL_TRANSPARENT_GREEN_VALUE, 0 },
{ EGL_TRANSPARENT_RED_VALUE, 0 },
{ EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE },
{ EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE },
{ EGL_MIN_SWAP_INTERVAL, 1 },
{ EGL_MAX_SWAP_INTERVAL, 1 },
{ EGL_LUMINANCE_SIZE, 0 },
{ EGL_ALPHA_MASK_SIZE, 0 },
{ EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER },
{ EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT },
{ EGL_CONFORMANT, 0 }
};
// These configs can override the base attribute list
// NOTE: when adding a config here, don't forget to update eglCreate*Surface()
// 565 configs
static config_pair_t const config_0_attribute_list[] = {
{ EGL_BUFFER_SIZE, 16 },
{ EGL_ALPHA_SIZE, 0 },
{ EGL_BLUE_SIZE, 5 },
{ EGL_GREEN_SIZE, 6 },
{ EGL_RED_SIZE, 5 },
{ EGL_DEPTH_SIZE, 0 },
{ EGL_CONFIG_ID, 0 },
{ EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
};
static config_pair_t const config_1_attribute_list[] = {
{ EGL_BUFFER_SIZE, 16 },
{ EGL_ALPHA_SIZE, 0 },
{ EGL_BLUE_SIZE, 5 },
{ EGL_GREEN_SIZE, 6 },
{ EGL_RED_SIZE, 5 },
{ EGL_DEPTH_SIZE, 16 },
{ EGL_CONFIG_ID, 1 },
{ EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
};
// RGB 888 configs
static config_pair_t const config_2_attribute_list[] = {
{ EGL_BUFFER_SIZE, 32 },
{ EGL_ALPHA_SIZE, 0 },
{ EGL_BLUE_SIZE, 8 },
{ EGL_GREEN_SIZE, 8 },
{ EGL_RED_SIZE, 8 },
{ EGL_DEPTH_SIZE, 0 },
{ EGL_CONFIG_ID, 6 },
{ EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
};
static config_pair_t const config_3_attribute_list[] = {
{ EGL_BUFFER_SIZE, 32 },
{ EGL_ALPHA_SIZE, 0 },
{ EGL_BLUE_SIZE, 8 },
{ EGL_GREEN_SIZE, 8 },
{ EGL_RED_SIZE, 8 },
{ EGL_DEPTH_SIZE, 16 },
{ EGL_CONFIG_ID, 7 },
{ EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
};
// 8888 configs
static config_pair_t const config_4_attribute_list[] = {
{ EGL_BUFFER_SIZE, 32 },
{ EGL_ALPHA_SIZE, 8 },
{ EGL_BLUE_SIZE, 8 },
{ EGL_GREEN_SIZE, 8 },
{ EGL_RED_SIZE, 8 },
{ EGL_DEPTH_SIZE, 0 },
{ EGL_CONFIG_ID, 2 },
{ EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
};
static config_pair_t const config_5_attribute_list[] = {
{ EGL_BUFFER_SIZE, 32 },
{ EGL_ALPHA_SIZE, 8 },
{ EGL_BLUE_SIZE, 8 },
{ EGL_GREEN_SIZE, 8 },
{ EGL_RED_SIZE, 8 },
{ EGL_DEPTH_SIZE, 16 },
{ EGL_CONFIG_ID, 3 },
{ EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
};
// A8 configs
static config_pair_t const config_6_attribute_list[] = {
{ EGL_BUFFER_SIZE, 8 },
{ EGL_ALPHA_SIZE, 8 },
{ EGL_BLUE_SIZE, 0 },
{ EGL_GREEN_SIZE, 0 },
{ EGL_RED_SIZE, 0 },
{ EGL_DEPTH_SIZE, 0 },
{ EGL_CONFIG_ID, 4 },
{ EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
};
static config_pair_t const config_7_attribute_list[] = {
{ EGL_BUFFER_SIZE, 8 },
{ EGL_ALPHA_SIZE, 8 },
{ EGL_BLUE_SIZE, 0 },
{ EGL_GREEN_SIZE, 0 },
{ EGL_RED_SIZE, 0 },
{ EGL_DEPTH_SIZE, 16 },
{ EGL_CONFIG_ID, 5 },
{ EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT },
};
static configs_t const gConfigs[] = {
{ config_0_attribute_list, NELEM(config_0_attribute_list) },
{ config_1_attribute_list, NELEM(config_1_attribute_list) },
{ config_2_attribute_list, NELEM(config_2_attribute_list) },
{ config_3_attribute_list, NELEM(config_3_attribute_list) },
{ config_4_attribute_list, NELEM(config_4_attribute_list) },
{ config_5_attribute_list, NELEM(config_5_attribute_list) },
{ config_6_attribute_list, NELEM(config_6_attribute_list) },
{ config_7_attribute_list, NELEM(config_7_attribute_list) },
};
static config_management_t const gConfigManagement[] = {
{ EGL_BUFFER_SIZE, config_management_t::atLeast },
{ EGL_ALPHA_SIZE, config_management_t::atLeast },
{ EGL_BLUE_SIZE, config_management_t::atLeast },
{ EGL_GREEN_SIZE, config_management_t::atLeast },
{ EGL_RED_SIZE, config_management_t::atLeast },
{ EGL_DEPTH_SIZE, config_management_t::atLeast },
{ EGL_STENCIL_SIZE, config_management_t::atLeast },
{ EGL_CONFIG_CAVEAT, config_management_t::exact },
{ EGL_CONFIG_ID, config_management_t::exact },
{ EGL_LEVEL, config_management_t::exact },
{ EGL_MAX_PBUFFER_HEIGHT, config_management_t::exact },
{ EGL_MAX_PBUFFER_PIXELS, config_management_t::exact },
{ EGL_MAX_PBUFFER_WIDTH, config_management_t::exact },
{ EGL_NATIVE_RENDERABLE, config_management_t::exact },
{ EGL_NATIVE_VISUAL_ID, config_management_t::exact },
{ EGL_NATIVE_VISUAL_TYPE, config_management_t::exact },
{ EGL_SAMPLES, config_management_t::exact },
{ EGL_SAMPLE_BUFFERS, config_management_t::exact },
{ EGL_SURFACE_TYPE, config_management_t::mask },
{ EGL_TRANSPARENT_TYPE, config_management_t::exact },
{ EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact },
{ EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact },
{ EGL_TRANSPARENT_RED_VALUE, config_management_t::exact },
{ EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact },
{ EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact },
{ EGL_MIN_SWAP_INTERVAL, config_management_t::exact },
{ EGL_MAX_SWAP_INTERVAL, config_management_t::exact },
{ EGL_LUMINANCE_SIZE, config_management_t::atLeast },
{ EGL_ALPHA_MASK_SIZE, config_management_t::atLeast },
{ EGL_COLOR_BUFFER_TYPE, config_management_t::exact },
{ EGL_RENDERABLE_TYPE, config_management_t::mask },
{ EGL_CONFORMANT, config_management_t::mask }
};
static config_pair_t const config_defaults[] = {
// attributes that are not specified are simply ignored, if a particular
// one needs not be ignored, it must be specified here, eg:
// { EGL_SURFACE_TYPE, EGL_WINDOW_BIT },
};
// ----------------------------------------------------------------------------
static status_t getConfigFormatInfo(EGLint configID,
int32_t& pixelFormat, int32_t& depthFormat)
{
switch(configID) {
case 0:
pixelFormat = GGL_PIXEL_FORMAT_RGB_565;
depthFormat = 0;
break;
case 1:
pixelFormat = GGL_PIXEL_FORMAT_RGB_565;
depthFormat = GGL_PIXEL_FORMAT_Z_16;
break;
case 2:
pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888;
depthFormat = 0;
break;
case 3:
pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888;
depthFormat = GGL_PIXEL_FORMAT_Z_16;
break;
case 4:
pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
depthFormat = 0;
break;
case 5:
pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
depthFormat = GGL_PIXEL_FORMAT_Z_16;
break;
case 6:
pixelFormat = GGL_PIXEL_FORMAT_A_8;
depthFormat = 0;
break;
case 7:
pixelFormat = GGL_PIXEL_FORMAT_A_8;
depthFormat = GGL_PIXEL_FORMAT_Z_16;
break;
default:
return NAME_NOT_FOUND;
}
return NO_ERROR;
}
// ----------------------------------------------------------------------------
template<typename T>
static int binarySearch(T const sortedArray[], int first, int last, EGLint key)
{
while (first <= last) {
int mid = (first + last) / 2;
if (key > sortedArray[mid].key) {
first = mid + 1;
} else if (key < sortedArray[mid].key) {
last = mid - 1;
} else {
return mid;
}
}
return -1;
}
static int isAttributeMatching(int i, EGLint attr, EGLint val)
{
// look for the attribute in all of our configs
config_pair_t const* configFound = gConfigs[i].array;
int index = binarySearch<config_pair_t>(
gConfigs[i].array,
0, gConfigs[i].size-1,
attr);
if (index < 0) {
configFound = config_base_attribute_list;
index = binarySearch<config_pair_t>(
config_base_attribute_list,
0, NELEM(config_base_attribute_list)-1,
attr);
}
if (index >= 0) {
// attribute found, check if this config could match
int cfgMgtIndex = binarySearch<config_management_t>(
gConfigManagement,
0, NELEM(gConfigManagement)-1,
attr);
if (cfgMgtIndex >= 0) {
bool match = gConfigManagement[cfgMgtIndex].match(
val, configFound[index].value);
if (match) {
// this config matches
return 1;
}
} else {
// attribute not found. this should NEVER happen.
}
} else {
// error, this attribute doesn't exist
}
return 0;
}
static int makeCurrent(ogles_context_t* gl)
{
ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific();
if (gl) {
egl_context_t* c = egl_context_t::context(gl);
if (c->flags & egl_context_t::IS_CURRENT) {
if (current != gl) {
// it is an error to set a context current, if it's already
// current to another thread
return -1;
}
} else {
if (current) {
// mark the current context as not current, and flush
glFlush();
egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT;
}
}
if (!(c->flags & egl_context_t::IS_CURRENT)) {
// The context is not current, make it current!
setGlThreadSpecific(gl);
c->flags |= egl_context_t::IS_CURRENT;
}
} else {
if (current) {
// mark the current context as not current, and flush
glFlush();
egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT;
}
// this thread has no context attached to it
setGlThreadSpecific(0);
}
return 0;
}
static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config,
EGLint attribute, EGLint *value)
{
size_t numConfigs = NELEM(gConfigs);
int index = (int)config;
if (uint32_t(index) >= numConfigs)
return setError(EGL_BAD_CONFIG, EGL_FALSE);
int attrIndex;
attrIndex = binarySearch<config_pair_t>(
gConfigs[index].array,
0, gConfigs[index].size-1,
attribute);
if (attrIndex>=0) {
*value = gConfigs[index].array[attrIndex].value;
return EGL_TRUE;
}
attrIndex = binarySearch<config_pair_t>(
config_base_attribute_list,
0, NELEM(config_base_attribute_list)-1,
attribute);
if (attrIndex>=0) {
*value = config_base_attribute_list[attrIndex].value;
return EGL_TRUE;
}
return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
}
static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config,
NativeWindowType window, const EGLint *attrib_list)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
if (window == 0)
return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
EGLint surfaceType;
if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
return EGL_FALSE;
if (!(surfaceType & EGL_WINDOW_BIT))
return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
if (static_cast<ANativeWindow*>(window)->common.magic !=
ANDROID_NATIVE_WINDOW_MAGIC) {
return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
}
EGLint configID;
if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
return EGL_FALSE;
int32_t depthFormat;
int32_t pixelFormat;
if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
}
// FIXME: we don't have access to the pixelFormat here just yet.
// (it's possible that the surface is not fully initialized)
// maybe this should be done after the page-flip
//if (EGLint(info.format) != pixelFormat)
// return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
egl_surface_t* surface;
surface = new egl_window_surface_v2_t(dpy, config, depthFormat,
static_cast<ANativeWindow*>(window));
if (!surface->initCheck()) {
// there was a problem in the ctor, the error
// flag has been set.
delete surface;
surface = 0;
}
return surface;
}
static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config,
NativePixmapType pixmap, const EGLint *attrib_list)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
if (pixmap == 0)
return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
EGLint surfaceType;
if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
return EGL_FALSE;
if (!(surfaceType & EGL_PIXMAP_BIT))
return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
if (static_cast<egl_native_pixmap_t*>(pixmap)->version !=
sizeof(egl_native_pixmap_t)) {
return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE);
}
EGLint configID;
if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
return EGL_FALSE;
int32_t depthFormat;
int32_t pixelFormat;
if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
}
if (pixmap->format != pixelFormat)
return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
egl_surface_t* surface =
new egl_pixmap_surface_t(dpy, config, depthFormat,
static_cast<egl_native_pixmap_t*>(pixmap));
if (!surface->initCheck()) {
// there was a problem in the ctor, the error
// flag has been set.
delete surface;
surface = 0;
}
return surface;
}
static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config,
const EGLint *attrib_list)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
EGLint surfaceType;
if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE)
return EGL_FALSE;
if (!(surfaceType & EGL_PBUFFER_BIT))
return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
EGLint configID;
if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
return EGL_FALSE;
int32_t depthFormat;
int32_t pixelFormat;
if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) {
return setError(EGL_BAD_MATCH, EGL_NO_SURFACE);
}
int32_t w = 0;
int32_t h = 0;
while (attrib_list[0]) {
if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1];
if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1];
attrib_list+=2;
}
egl_surface_t* surface =
new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat);
if (!surface->initCheck()) {
// there was a problem in the ctor, the error
// flag has been set.
delete surface;
surface = 0;
}
return surface;
}
// ----------------------------------------------------------------------------
}; // namespace android
// ----------------------------------------------------------------------------
using namespace android;
// ----------------------------------------------------------------------------
// Initialization
// ----------------------------------------------------------------------------
EGLDisplay eglGetDisplay(NativeDisplayType display)
{
#ifndef HAVE_ANDROID_OS
// this just needs to be done once
if (gGLKey == -1) {
pthread_mutex_lock(&gInitMutex);
if (gGLKey == -1)
pthread_key_create(&gGLKey, NULL);
pthread_mutex_unlock(&gInitMutex);
}
#endif
if (display == EGL_DEFAULT_DISPLAY) {
EGLDisplay dpy = (EGLDisplay)1;
egl_display_t& d = egl_display_t::get_display(dpy);
d.type = display;
return dpy;
}
return EGL_NO_DISPLAY;
}
EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
EGLBoolean res = EGL_TRUE;
egl_display_t& d = egl_display_t::get_display(dpy);
if (android_atomic_inc(&d.initialized) == 0) {
// initialize stuff here if needed
//pthread_mutex_lock(&gInitMutex);
//pthread_mutex_unlock(&gInitMutex);
}
if (res == EGL_TRUE) {
if (major != NULL) *major = VERSION_MAJOR;
if (minor != NULL) *minor = VERSION_MINOR;
}
return res;
}
EGLBoolean eglTerminate(EGLDisplay dpy)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
EGLBoolean res = EGL_TRUE;
egl_display_t& d = egl_display_t::get_display(dpy);
if (android_atomic_dec(&d.initialized) == 1) {
// TODO: destroy all resources (surfaces, contexts, etc...)
//pthread_mutex_lock(&gInitMutex);
//pthread_mutex_unlock(&gInitMutex);
}
return res;
}
// ----------------------------------------------------------------------------
// configuration
// ----------------------------------------------------------------------------
EGLBoolean eglGetConfigs( EGLDisplay dpy,
EGLConfig *configs,
EGLint config_size, EGLint *num_config)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
GLint numConfigs = NELEM(gConfigs);
if (!configs) {
*num_config = numConfigs;
return EGL_TRUE;
}
GLint i;
for (i=0 ; i<numConfigs && i<config_size ; i++) {
*configs++ = (EGLConfig)i;
}
*num_config = i;
return EGL_TRUE;
}
EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list,
EGLConfig *configs, EGLint config_size,
EGLint *num_config)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
if (ggl_unlikely(num_config==0)) {
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
}
if (ggl_unlikely(attrib_list==0)) {
/*
* A NULL attrib_list should be treated as though it was an empty
* one (terminated with EGL_NONE) as defined in
* section 3.4.1 "Querying Configurations" in the EGL specification.
*/
static const EGLint dummy = EGL_NONE;
attrib_list = &dummy;
}
int numAttributes = 0;
int numConfigs = NELEM(gConfigs);
uint32_t possibleMatch = (1<<numConfigs)-1;
while(possibleMatch && *attrib_list != EGL_NONE) {
numAttributes++;
EGLint attr = *attrib_list++;
EGLint val = *attrib_list++;
for (int i=0 ; possibleMatch && i<numConfigs ; i++) {
if (!(possibleMatch & (1<<i)))
continue;
if (isAttributeMatching(i, attr, val) == 0) {
possibleMatch &= ~(1<<i);
}
}
}
// now, handle the attributes which have a useful default value
for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) {
// see if this attribute was specified, if not, apply its
// default value
if (binarySearch<config_pair_t>(
(config_pair_t const*)attrib_list,
0, numAttributes-1,
config_defaults[j].key) < 0)
{
for (int i=0 ; possibleMatch && i<numConfigs ; i++) {
if (!(possibleMatch & (1<<i)))
continue;
if (isAttributeMatching(i,
config_defaults[j].key,
config_defaults[j].value) == 0)
{
possibleMatch &= ~(1<<i);
}
}
}
}
// return the configurations found
int n=0;
if (possibleMatch) {
if (configs) {
for (int i=0 ; config_size && i<numConfigs ; i++) {
if (possibleMatch & (1<<i)) {
*configs++ = (EGLConfig)i;
config_size--;
n++;
}
}
} else {
for (int i=0 ; i<numConfigs ; i++) {
if (possibleMatch & (1<<i)) {
n++;
}
}
}
}
*num_config = n;
return EGL_TRUE;
}
EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
EGLint attribute, EGLint *value)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
return getConfigAttrib(dpy, config, attribute, value);
}
// ----------------------------------------------------------------------------
// surfaces
// ----------------------------------------------------------------------------
EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config,
NativeWindowType window,
const EGLint *attrib_list)
{
return createWindowSurface(dpy, config, window, attrib_list);
}
EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config,
NativePixmapType pixmap,
const EGLint *attrib_list)
{
return createPixmapSurface(dpy, config, pixmap, attrib_list);
}
EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config,
const EGLint *attrib_list)
{
return createPbufferSurface(dpy, config, attrib_list);
}
EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
if (eglSurface != EGL_NO_SURFACE) {
egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) );
if (!surface->isValid())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (surface->dpy != dpy)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
if (surface->ctx) {
// FIXME: this surface is current check what the spec says
surface->disconnect();
surface->ctx = 0;
}
delete surface;
}
return EGL_TRUE;
}
EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface,
EGLint attribute, EGLint *value)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface);
if (!surface->isValid())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (surface->dpy != dpy)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
EGLBoolean ret = EGL_TRUE;
switch (attribute) {
case EGL_CONFIG_ID:
ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value);
break;
case EGL_WIDTH:
*value = surface->getWidth();
break;
case EGL_HEIGHT:
*value = surface->getHeight();
break;
case EGL_LARGEST_PBUFFER:
// not modified for a window or pixmap surface
break;
case EGL_TEXTURE_FORMAT:
*value = EGL_NO_TEXTURE;
break;
case EGL_TEXTURE_TARGET:
*value = EGL_NO_TEXTURE;
break;
case EGL_MIPMAP_TEXTURE:
*value = EGL_FALSE;
break;
case EGL_MIPMAP_LEVEL:
*value = 0;
break;
case EGL_RENDER_BUFFER:
// TODO: return the real RENDER_BUFFER here
*value = EGL_BACK_BUFFER;
break;
case EGL_HORIZONTAL_RESOLUTION:
// pixel/mm * EGL_DISPLAY_SCALING
*value = surface->getHorizontalResolution();
break;
case EGL_VERTICAL_RESOLUTION:
// pixel/mm * EGL_DISPLAY_SCALING
*value = surface->getVerticalResolution();
break;
case EGL_PIXEL_ASPECT_RATIO: {
// w/h * EGL_DISPLAY_SCALING
int wr = surface->getHorizontalResolution();
int hr = surface->getVerticalResolution();
*value = (wr * EGL_DISPLAY_SCALING) / hr;
} break;
case EGL_SWAP_BEHAVIOR:
*value = surface->getSwapBehavior();
break;
default:
ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
}
return ret;
}
EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config,
EGLContext share_list, const EGLint *attrib_list)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
ogles_context_t* gl = ogles_init(sizeof(egl_context_t));
if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT);
egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base);
c->flags = egl_context_t::NEVER_CURRENT;
c->dpy = dpy;
c->config = config;
c->read = 0;
c->draw = 0;
return (EGLContext)gl;
}
EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
egl_context_t* c = egl_context_t::context(ctx);
if (c->flags & egl_context_t::IS_CURRENT)
setGlThreadSpecific(0);
ogles_uninit((ogles_context_t*)ctx);
return EGL_TRUE;
}
EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw,
EGLSurface read, EGLContext ctx)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
if (draw) {
egl_surface_t* s = (egl_surface_t*)draw;
if (!s->isValid())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (s->dpy != dpy)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
// TODO: check that draw is compatible with the context
}
if (read && read!=draw) {
egl_surface_t* s = (egl_surface_t*)read;
if (!s->isValid())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (s->dpy != dpy)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
// TODO: check that read is compatible with the context
}
EGLContext current_ctx = EGL_NO_CONTEXT;
if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT))
return setError(EGL_BAD_MATCH, EGL_FALSE);
if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT))
return setError(EGL_BAD_MATCH, EGL_FALSE);
if (ctx == EGL_NO_CONTEXT) {
// if we're detaching, we need the current context
current_ctx = (EGLContext)getGlThreadSpecific();
} else {
egl_context_t* c = egl_context_t::context(ctx);
egl_surface_t* d = (egl_surface_t*)draw;
egl_surface_t* r = (egl_surface_t*)read;
if ((d && d->ctx && d->ctx != ctx) ||
(r && r->ctx && r->ctx != ctx)) {
// one of the surface is bound to a context in another thread
return setError(EGL_BAD_ACCESS, EGL_FALSE);
}
}
ogles_context_t* gl = (ogles_context_t*)ctx;
if (makeCurrent(gl) == 0) {
if (ctx) {
egl_context_t* c = egl_context_t::context(ctx);
egl_surface_t* d = (egl_surface_t*)draw;
egl_surface_t* r = (egl_surface_t*)read;
if (c->draw) {
egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw);
s->disconnect();
}
if (c->read) {
// FIXME: unlock/disconnect the read surface too
}
c->draw = draw;
c->read = read;
if (c->flags & egl_context_t::NEVER_CURRENT) {
c->flags &= ~egl_context_t::NEVER_CURRENT;
GLint w = 0;
GLint h = 0;
if (draw) {
w = d->getWidth();
h = d->getHeight();
}
ogles_surfaceport(gl, 0, 0);
ogles_viewport(gl, 0, 0, w, h);
ogles_scissor(gl, 0, 0, w, h);
}
if (d) {
if (d->connect() == EGL_FALSE) {
return EGL_FALSE;
}
d->ctx = ctx;
d->bindDrawSurface(gl);
}
if (r) {
// FIXME: lock/connect the read surface too
r->ctx = ctx;
r->bindReadSurface(gl);
}
} else {
// if surfaces were bound to the context bound to this thread
// mark then as unbound.
if (current_ctx) {
egl_context_t* c = egl_context_t::context(current_ctx);
egl_surface_t* d = (egl_surface_t*)c->draw;
egl_surface_t* r = (egl_surface_t*)c->read;
if (d) {
c->draw = 0;
d->ctx = EGL_NO_CONTEXT;
d->disconnect();
}
if (r) {
c->read = 0;
r->ctx = EGL_NO_CONTEXT;
// FIXME: unlock/disconnect the read surface too
}
}
}
return EGL_TRUE;
}
return setError(EGL_BAD_ACCESS, EGL_FALSE);
}
EGLContext eglGetCurrentContext(void)
{
// eglGetCurrentContext returns the current EGL rendering context,
// as specified by eglMakeCurrent. If no context is current,
// EGL_NO_CONTEXT is returned.
return (EGLContext)getGlThreadSpecific();
}
EGLSurface eglGetCurrentSurface(EGLint readdraw)
{
// eglGetCurrentSurface returns the read or draw surface attached
// to the current EGL rendering context, as specified by eglMakeCurrent.
// If no context is current, EGL_NO_SURFACE is returned.
EGLContext ctx = (EGLContext)getGlThreadSpecific();
if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE;
egl_context_t* c = egl_context_t::context(ctx);
if (readdraw == EGL_READ) {
return c->read;
} else if (readdraw == EGL_DRAW) {
return c->draw;
}
return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
}
EGLDisplay eglGetCurrentDisplay(void)
{
// eglGetCurrentDisplay returns the current EGL display connection
// for the current EGL rendering context, as specified by eglMakeCurrent.
// If no context is current, EGL_NO_DISPLAY is returned.
EGLContext ctx = (EGLContext)getGlThreadSpecific();
if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY;
egl_context_t* c = egl_context_t::context(ctx);
return c->dpy;
}
EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx,
EGLint attribute, EGLint *value)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
egl_context_t* c = egl_context_t::context(ctx);
switch (attribute) {
case EGL_CONFIG_ID:
// Returns the ID of the EGL frame buffer configuration with
// respect to which the context was created
return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value);
}
return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE);
}
EGLBoolean eglWaitGL(void)
{
return EGL_TRUE;
}
EGLBoolean eglWaitNative(EGLint engine)
{
return EGL_TRUE;
}
EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
egl_surface_t* d = static_cast<egl_surface_t*>(draw);
if (!d->isValid())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (d->dpy != dpy)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
// post the surface
d->swapBuffers();
// if it's bound to a context, update the buffer
if (d->ctx != EGL_NO_CONTEXT) {
d->bindDrawSurface((ogles_context_t*)d->ctx);
// if this surface is also the read surface of the context
// it is bound to, make sure to update the read buffer as well.
// The EGL spec is a little unclear about this.
egl_context_t* c = egl_context_t::context(d->ctx);
if (c->read == draw) {
d->bindReadSurface((ogles_context_t*)d->ctx);
}
}
return EGL_TRUE;
}
EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface,
NativePixmapType target)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
// TODO: eglCopyBuffers()
return EGL_FALSE;
}
EGLint eglGetError(void)
{
return getError();
}
const char* eglQueryString(EGLDisplay dpy, EGLint name)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, (const char*)0);
switch (name) {
case EGL_VENDOR:
return gVendorString;
case EGL_VERSION:
return gVersionString;
case EGL_EXTENSIONS:
return gExtensionsString;
case EGL_CLIENT_APIS:
return gClientApiString;
}
return setError(EGL_BAD_PARAMETER, (const char *)0);
}
// ----------------------------------------------------------------------------
// EGL 1.1
// ----------------------------------------------------------------------------
EGLBoolean eglSurfaceAttrib(
EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
// TODO: eglSurfaceAttrib()
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
}
EGLBoolean eglBindTexImage(
EGLDisplay dpy, EGLSurface surface, EGLint buffer)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
// TODO: eglBindTexImage()
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
}
EGLBoolean eglReleaseTexImage(
EGLDisplay dpy, EGLSurface surface, EGLint buffer)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
// TODO: eglReleaseTexImage()
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
}
EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
// TODO: eglSwapInterval()
return EGL_TRUE;
}
// ----------------------------------------------------------------------------
// EGL 1.2
// ----------------------------------------------------------------------------
EGLBoolean eglBindAPI(EGLenum api)
{
if (api != EGL_OPENGL_ES_API)
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
return EGL_TRUE;
}
EGLenum eglQueryAPI(void)
{
return EGL_OPENGL_ES_API;
}
EGLBoolean eglWaitClient(void)
{
glFinish();
return EGL_TRUE;
}
EGLBoolean eglReleaseThread(void)
{
// TODO: eglReleaseThread()
return EGL_TRUE;
}
EGLSurface eglCreatePbufferFromClientBuffer(
EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer,
EGLConfig config, const EGLint *attrib_list)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE);
// TODO: eglCreatePbufferFromClientBuffer()
return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
}
// ----------------------------------------------------------------------------
// EGL_EGLEXT_VERSION 3
// ----------------------------------------------------------------------------
void (*eglGetProcAddress (const char *procname))()
{
extention_map_t const * const map = gExtentionMap;
for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) {
if (!strcmp(procname, map[i].name)) {
return map[i].address;
}
}
return NULL;
}
EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface,
const EGLint *attrib_list)
{
EGLBoolean result = EGL_FALSE;
return result;
}
EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface)
{
EGLBoolean result = EGL_FALSE;
return result;
}
EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
EGLClientBuffer buffer, const EGLint *attrib_list)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE) {
return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR);
}
if (ctx != EGL_NO_CONTEXT) {
return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR);
}
if (target != EGL_NATIVE_BUFFER_ANDROID) {
return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
}
android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer;
if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC)
return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
if (native_buffer->common.version != sizeof(android_native_buffer_t))
return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
switch (native_buffer->format) {
case HAL_PIXEL_FORMAT_RGBA_8888:
case HAL_PIXEL_FORMAT_RGBX_8888:
case HAL_PIXEL_FORMAT_RGB_888:
case HAL_PIXEL_FORMAT_RGB_565:
case HAL_PIXEL_FORMAT_BGRA_8888:
case HAL_PIXEL_FORMAT_RGBA_5551:
case HAL_PIXEL_FORMAT_RGBA_4444:
break;
default:
return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
}
native_buffer->common.incRef(&native_buffer->common);
return (EGLImageKHR)native_buffer;
}
EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE) {
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
}
android_native_buffer_t* native_buffer = (android_native_buffer_t*)img;
if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC)
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
if (native_buffer->common.version != sizeof(android_native_buffer_t))
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
native_buffer->common.decRef(&native_buffer->common);
return EGL_TRUE;
}
// ----------------------------------------------------------------------------
// ANDROID extensions
// ----------------------------------------------------------------------------
EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw,
EGLint left, EGLint top, EGLint width, EGLint height)
{
if (egl_display_t::is_valid(dpy) == EGL_FALSE)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
egl_surface_t* d = static_cast<egl_surface_t*>(draw);
if (!d->isValid())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (d->dpy != dpy)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
// post the surface
d->setSwapRectangle(left, top, width, height);
return EGL_TRUE;
}
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