auto import from //depot/cupcake/@135843
diff --git a/opengl/libagl/egl.cpp b/opengl/libagl/egl.cpp
new file mode 100644
index 0000000..5b90bf0
--- /dev/null
+++ b/opengl/libagl/egl.cpp
@@ -0,0 +1,1543 @@
+/*
+**
+** 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.
+*/
+
+#define LOG_TAG "EGL"
+
+#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 "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();
+ virtual bool isValid() const = 0;
+
+ virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0;
+ virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0;
+ virtual EGLint getWidth() const = 0;
+ virtual EGLint getHeight() const = 0;
+ virtual void* getBits() const = 0;
+
+ virtual EGLint getHorizontalResolution() const;
+ virtual EGLint getVerticalResolution() const;
+ virtual EGLint getRefreshRate() const;
+ virtual EGLint getSwapBehavior() const;
+ virtual EGLBoolean swapBuffers();
+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);
+}
+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;
+}
+
+// ----------------------------------------------------------------------------
+
+struct egl_window_surface_t : public egl_surface_t
+{
+ egl_window_surface_t(
+ EGLDisplay dpy, EGLConfig config,
+ int32_t depthFormat,
+ egl_native_window_t* window);
+
+ ~egl_window_surface_t();
+
+ virtual bool isValid() const { return nativeWindow->magic == 0x600913; }
+ virtual EGLBoolean swapBuffers();
+ virtual EGLBoolean bindDrawSurface(ogles_context_t* gl);
+ virtual EGLBoolean bindReadSurface(ogles_context_t* gl);
+ virtual EGLint getWidth() const { return nativeWindow->width; }
+ virtual EGLint getHeight() const { return nativeWindow->height; }
+ virtual void* getBits() const;
+ virtual EGLint getHorizontalResolution() const;
+ virtual EGLint getVerticalResolution() const;
+ virtual EGLint getRefreshRate() const;
+ virtual EGLint getSwapBehavior() const;
+private:
+ egl_native_window_t* nativeWindow;
+};
+
+egl_window_surface_t::egl_window_surface_t(EGLDisplay dpy,
+ EGLConfig config,
+ int32_t depthFormat,
+ egl_native_window_t* window)
+ : egl_surface_t(dpy, config, depthFormat), nativeWindow(window)
+{
+ if (depthFormat) {
+ depth.width = window->width;
+ depth.height = window->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;
+ }
+ }
+ nativeWindow->incRef(nativeWindow);
+}
+egl_window_surface_t::~egl_window_surface_t() {
+ nativeWindow->decRef(nativeWindow);
+}
+
+EGLBoolean egl_window_surface_t::swapBuffers()
+{
+ uint32_t flags = nativeWindow->swapBuffers(nativeWindow);
+ if (flags & EGL_NATIVES_FLAG_SIZE_CHANGED) {
+ // TODO: we probably should reset the swap rect here
+ // if the window size has changed
+ if (depth.data) {
+ free(depth.data);
+ depth.width = nativeWindow->width;
+ depth.height = nativeWindow->height;
+ depth.stride = nativeWindow->stride;
+ depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2);
+ if (depth.data == 0) {
+ setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
+ return EGL_FALSE;
+ }
+ }
+ }
+ return EGL_TRUE;
+}
+
+EGLBoolean egl_window_surface_t::bindDrawSurface(ogles_context_t* gl)
+{
+ GGLSurface buffer;
+ buffer.version = sizeof(GGLSurface);
+ buffer.width = nativeWindow->width;
+ buffer.height = nativeWindow->height;
+ buffer.stride = nativeWindow->stride;
+ buffer.data = (GGLubyte*)nativeWindow->base + nativeWindow->offset;
+ buffer.format = nativeWindow->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_t::bindReadSurface(ogles_context_t* gl)
+{
+ GGLSurface buffer;
+ buffer.version = sizeof(GGLSurface);
+ buffer.width = nativeWindow->width;
+ buffer.height = nativeWindow->height;
+ buffer.stride = nativeWindow->stride;
+ buffer.data = (GGLubyte*)nativeWindow->base + nativeWindow->offset;
+ buffer.format = nativeWindow->format;
+ gl->rasterizer.procs.readBuffer(gl, &buffer);
+ return EGL_TRUE;
+}
+void* egl_window_surface_t::getBits() const {
+ return (GGLubyte*)nativeWindow->base + nativeWindow->offset;
+}
+EGLint egl_window_surface_t::getHorizontalResolution() const {
+ return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
+}
+EGLint egl_window_surface_t::getVerticalResolution() const {
+ return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f);
+}
+EGLint egl_window_surface_t::getRefreshRate() const {
+ return (nativeWindow->fps * EGL_DISPLAY_SCALING);
+}
+EGLint egl_window_surface_t::getSwapBehavior() const {
+ uint32_t flags = nativeWindow->flags;
+ if (flags & EGL_NATIVES_FLAG_DESTROY_BACKBUFFER)
+ return EGL_BUFFER_DESTROYED;
+ return EGL_BUFFER_PRESERVED;
+}
+
+// ----------------------------------------------------------------------------
+
+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 isValid() const { return nativePixmap.version == sizeof(egl_native_pixmap_t); }
+ 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; }
+ virtual void* getBits() const { return nativePixmap.data; }
+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);
+ return;
+ }
+ }
+}
+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 isValid() 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; }
+ virtual void* getBits() const { return pbuffer.data; }
+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;
+ 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";
+static char const * const gClientApiString = "OpenGL ES";
+static char const * const gExtensionsString = "";
+
+// ----------------------------------------------------------------------------
+
+struct extention_map_t {
+ const char * const name;
+ __eglMustCastToProperFunctionPointerType address;
+};
+
+static const extention_map_t gExtentionMap[] = {
+ { "glDrawTexsOES", (void(*)())&glDrawTexsOES },
+ { "glDrawTexiOES", (void(*)())&glDrawTexiOES },
+ { "glDrawTexfOES", (void(*)())&glDrawTexfOES },
+ { "glDrawTexxOES", (void(*)())&glDrawTexxOES },
+ { "glDrawTexsvOES", (void(*)())&glDrawTexsvOES },
+ { "glDrawTexivOES", (void(*)())&glDrawTexivOES },
+ { "glDrawTexfvOES", (void(*)())&glDrawTexfvOES },
+ { "glDrawTexxvOES", (void(*)())&glDrawTexxvOES },
+ { "glQueryMatrixxOES", (void(*)())&glQueryMatrixxOES },
+ { "glClipPlanef", (void(*)())&glClipPlanef },
+ { "glClipPlanex", (void(*)())&glClipPlanex },
+ { "glBindBuffer", (void(*)())&glBindBuffer },
+ { "glBufferData", (void(*)())&glBufferData },
+ { "glBufferSubData", (void(*)())&glBufferSubData },
+ { "glDeleteBuffers", (void(*)())&glDeleteBuffers },
+ { "glGenBuffers", (void(*)())&glGenBuffers },
+};
+
+/*
+ * 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, 4 },
+};
+
+// These configs can override the base attribute list
+// NOTE: when adding a config here, don't forget to update eglCreate*Surface()
+
+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 },
+};
+
+static config_pair_t const config_2_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_3_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 },
+};
+
+static config_pair_t const config_4_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_5_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) },
+};
+
+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 },
+};
+
+static config_pair_t const config_defaults[] = {
+ { EGL_SURFACE_TYPE, EGL_WINDOW_BIT },
+};
+
+// ----------------------------------------------------------------------------
+
+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 (index >= 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);
+
+ EGLint configID;
+ if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
+ return EGL_FALSE;
+
+ int32_t depthFormat;
+ int32_t pixelFormat;
+ 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_RGBA_8888;
+ depthFormat = 0;
+ break;
+ case 3:
+ pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
+ depthFormat = GGL_PIXEL_FORMAT_Z_16;
+ break;
+ case 4:
+ pixelFormat = GGL_PIXEL_FORMAT_A_8;
+ depthFormat = 0;
+ break;
+ case 5:
+ pixelFormat = GGL_PIXEL_FORMAT_A_8;
+ depthFormat = GGL_PIXEL_FORMAT_Z_16;
+ break;
+ default:
+ 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 =
+ new egl_window_surface_t(dpy, config, depthFormat,
+ static_cast<egl_native_window_t*>(window));
+
+ if (!surface->isValid()) {
+ // 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);
+
+ EGLint configID;
+ if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE)
+ return EGL_FALSE;
+
+ int32_t depthFormat;
+ int32_t pixelFormat;
+ 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_RGBA_8888;
+ depthFormat = 0;
+ break;
+ case 3:
+ pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
+ depthFormat = GGL_PIXEL_FORMAT_Z_16;
+ break;
+ case 4:
+ pixelFormat = GGL_PIXEL_FORMAT_A_8;
+ depthFormat = 0;
+ break;
+ case 5:
+ pixelFormat = GGL_PIXEL_FORMAT_A_8;
+ depthFormat = GGL_PIXEL_FORMAT_Z_16;
+ break;
+ default:
+ 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->isValid()) {
+ // 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;
+ 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_RGBA_8888;
+ depthFormat = 0;
+ break;
+ case 3:
+ pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888;
+ depthFormat = GGL_PIXEL_FORMAT_Z_16;
+ break;
+ case 4:
+ pixelFormat = GGL_PIXEL_FORMAT_A_8;
+ depthFormat = 0;
+ break;
+ case 5:
+ pixelFormat = GGL_PIXEL_FORMAT_A_8;
+ depthFormat = GGL_PIXEL_FORMAT_Z_16;
+ break;
+ default:
+ 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->isValid()) {
+ // 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(configs==0 || attrib_list==0)) {
+ *num_config = 0;
+ return EGL_TRUE;
+ }
+
+ 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 ; 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 ; 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,
+ config_defaults[j].key) < 0)
+ {
+ for (int i=0 ; 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) {
+ for (int i=0 ; config_size && i<numConfigs ; i++) {
+ if (possibleMatch & (1<<i)) {
+ *configs++ = (EGLConfig)i;
+ config_size--;
+ 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->magic != egl_surface_t::MAGIC)
+ return setError(EGL_BAD_SURFACE, EGL_FALSE);
+ if (surface->dpy != dpy)
+ return setError(EGL_BAD_DISPLAY, EGL_FALSE);
+ 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->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->dpy != dpy)
+ return setError(EGL_BAD_DISPLAY, EGL_FALSE);
+ // TODO: check that draw and read are 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)) {
+ // once 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;
+ c->read = read;
+ c->draw = draw;
+ 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) {
+ d->ctx = ctx;
+ d->bindDrawSurface(gl);
+ }
+ if (r) {
+ 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) d->ctx = EGL_NO_CONTEXT;
+ if (r) r->ctx = EGL_NO_CONTEXT;
+ }
+ }
+ 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->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 setError(EGL_BAD_PARAMETER, EGL_FALSE);
+}
+
+// ----------------------------------------------------------------------------
+// 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);
+}
+
+// ----------------------------------------------------------------------------
+// Android extensions
+// ----------------------------------------------------------------------------
+
+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;
+}