| /* |
| ** |
| ** 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", |
| (__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 }, |
| { "glClipPlanef", |
| (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, |
| { "glClipPlanex", |
| (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, |
| { "glBindBuffer", |
| (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, |
| { "glBufferData", |
| (__eglMustCastToProperFunctionPointerType)&glBufferData }, |
| { "glBufferSubData", |
| (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, |
| { "glDeleteBuffers", |
| (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, |
| { "glGenBuffers", |
| (__eglMustCastToProperFunctionPointerType)&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(num_config==0)) { |
| return setError(EGL_BAD_PARAMETER, EGL_FALSE); |
| } |
| |
| if (ggl_unlikely(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-1, |
| 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) { |
| 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->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); |
| } |
| } |
| |
| // TODO: call connect / disconnect on the surface |
| |
| 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; |
| } |