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Diffstat (limited to '3rdparty/SDL2/src/video/SDL_egl.c')
-rw-r--r--3rdparty/SDL2/src/video/SDL_egl.c633
1 files changed, 0 insertions, 633 deletions
diff --git a/3rdparty/SDL2/src/video/SDL_egl.c b/3rdparty/SDL2/src/video/SDL_egl.c
deleted file mode 100644
index c9038056639..00000000000
--- a/3rdparty/SDL2/src/video/SDL_egl.c
+++ /dev/null
@@ -1,633 +0,0 @@
-/*
- * Simple DirectMedia Layer
- * Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
- *
- * This software is provided 'as-is', without any express or implied
- * warranty. In no event will the authors be held liable for any damages
- * arising from the use of this software.
- *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
- *
- * 1. The origin of this software must not be misrepresented; you must not
- * claim that you wrote the original software. If you use this software
- * in a product, an acknowledgment in the product documentation would be
- * appreciated but is not required.
- * 2. Altered source versions must be plainly marked as such, and must not be
- * misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
- */
-#include "../SDL_internal.h"
-
-#if SDL_VIDEO_OPENGL_EGL
-
-#if SDL_VIDEO_DRIVER_WINDOWS || SDL_VIDEO_DRIVER_WINRT
-#include "../core/windows/SDL_windows.h"
-#endif
-
-#include "SDL_sysvideo.h"
-#include "SDL_egl_c.h"
-#include "SDL_loadso.h"
-#include "SDL_hints.h"
-
-#ifdef EGL_KHR_create_context
-/* EGL_OPENGL_ES3_BIT_KHR was added in version 13 of the extension. */
-#ifndef EGL_OPENGL_ES3_BIT_KHR
-#define EGL_OPENGL_ES3_BIT_KHR 0x00000040
-#endif
-#endif /* EGL_KHR_create_context */
-
-#if SDL_VIDEO_DRIVER_RPI
-/* Raspbian places the OpenGL ES/EGL binaries in a non standard path */
-#define DEFAULT_EGL "/opt/vc/lib/libEGL.so"
-#define DEFAULT_OGL_ES2 "/opt/vc/lib/libGLESv2.so"
-#define DEFAULT_OGL_ES_PVR "/opt/vc/lib/libGLES_CM.so"
-#define DEFAULT_OGL_ES "/opt/vc/lib/libGLESv1_CM.so"
-
-#elif SDL_VIDEO_DRIVER_ANDROID || SDL_VIDEO_DRIVER_VIVANTE
-/* Android */
-#define DEFAULT_EGL "libEGL.so"
-#define DEFAULT_OGL_ES2 "libGLESv2.so"
-#define DEFAULT_OGL_ES_PVR "libGLES_CM.so"
-#define DEFAULT_OGL_ES "libGLESv1_CM.so"
-
-#elif SDL_VIDEO_DRIVER_WINDOWS || SDL_VIDEO_DRIVER_WINRT
-/* EGL AND OpenGL ES support via ANGLE */
-#define DEFAULT_EGL "libEGL.dll"
-#define DEFAULT_OGL_ES2 "libGLESv2.dll"
-#define DEFAULT_OGL_ES_PVR "libGLES_CM.dll"
-#define DEFAULT_OGL_ES "libGLESv1_CM.dll"
-
-#else
-/* Desktop Linux */
-#define DEFAULT_OGL "libGL.so.1"
-#define DEFAULT_EGL "libEGL.so.1"
-#define DEFAULT_OGL_ES2 "libGLESv2.so.2"
-#define DEFAULT_OGL_ES_PVR "libGLES_CM.so.1"
-#define DEFAULT_OGL_ES "libGLESv1_CM.so.1"
-#endif /* SDL_VIDEO_DRIVER_RPI */
-
-#define LOAD_FUNC(NAME) \
-_this->egl_data->NAME = SDL_LoadFunction(_this->egl_data->dll_handle, #NAME); \
-if (!_this->egl_data->NAME) \
-{ \
- return SDL_SetError("Could not retrieve EGL function " #NAME); \
-}
-
-/* EGL implementation of SDL OpenGL ES support */
-#ifdef EGL_KHR_create_context
-static int SDL_EGL_HasExtension(_THIS, const char *ext)
-{
- int i;
- int len = 0;
- size_t ext_len;
- const char *exts;
- const char *ext_word;
-
- ext_len = SDL_strlen(ext);
- exts = _this->egl_data->eglQueryString(_this->egl_data->egl_display, EGL_EXTENSIONS);
-
- if (exts) {
- ext_word = exts;
-
- for (i = 0; exts[i] != 0; i++) {
- if (exts[i] == ' ') {
- if (ext_len == len && !SDL_strncmp(ext_word, ext, len)) {
- return 1;
- }
-
- len = 0;
- ext_word = &exts[i + 1];
- } else {
- len++;
- }
- }
- }
-
- return 0;
-}
-#endif /* EGL_KHR_create_context */
-
-void *
-SDL_EGL_GetProcAddress(_THIS, const char *proc)
-{
- static char procname[1024];
- void *retval;
-
- /* eglGetProcAddress is busted on Android http://code.google.com/p/android/issues/detail?id=7681 */
-#if !defined(SDL_VIDEO_DRIVER_ANDROID) && !defined(SDL_VIDEO_DRIVER_MIR)
- if (_this->egl_data->eglGetProcAddress) {
- retval = _this->egl_data->eglGetProcAddress(proc);
- if (retval) {
- return retval;
- }
- }
-#endif
-
- retval = SDL_LoadFunction(_this->egl_data->egl_dll_handle, proc);
- if (!retval && SDL_strlen(proc) <= 1022) {
- procname[0] = '_';
- SDL_strlcpy(procname + 1, proc, 1022);
- retval = SDL_LoadFunction(_this->egl_data->egl_dll_handle, procname);
- }
- return retval;
-}
-
-void
-SDL_EGL_UnloadLibrary(_THIS)
-{
- if (_this->egl_data) {
- if (_this->egl_data->egl_display) {
- _this->egl_data->eglTerminate(_this->egl_data->egl_display);
- _this->egl_data->egl_display = NULL;
- }
-
- if (_this->egl_data->dll_handle) {
- SDL_UnloadObject(_this->egl_data->dll_handle);
- _this->egl_data->dll_handle = NULL;
- }
- if (_this->egl_data->egl_dll_handle) {
- SDL_UnloadObject(_this->egl_data->egl_dll_handle);
- _this->egl_data->egl_dll_handle = NULL;
- }
-
- SDL_free(_this->egl_data);
- _this->egl_data = NULL;
- }
-}
-
-int
-SDL_EGL_LoadLibrary(_THIS, const char *egl_path, NativeDisplayType native_display)
-{
- void *dll_handle = NULL, *egl_dll_handle = NULL; /* The naming is counter intuitive, but hey, I just work here -- Gabriel */
- const char *path = NULL;
-#if SDL_VIDEO_DRIVER_WINDOWS || SDL_VIDEO_DRIVER_WINRT
- const char *d3dcompiler;
-#endif
-
- if (_this->egl_data) {
- return SDL_SetError("OpenGL ES context already created");
- }
-
- _this->egl_data = (struct SDL_EGL_VideoData *) SDL_calloc(1, sizeof(SDL_EGL_VideoData));
- if (!_this->egl_data) {
- return SDL_OutOfMemory();
- }
-
-#if SDL_VIDEO_DRIVER_WINDOWS || SDL_VIDEO_DRIVER_WINRT
- d3dcompiler = SDL_GetHint(SDL_HINT_VIDEO_WIN_D3DCOMPILER);
- if (!d3dcompiler) {
- if (WIN_IsWindowsVistaOrGreater()) {
- d3dcompiler = "d3dcompiler_46.dll";
- } else {
- d3dcompiler = "d3dcompiler_43.dll";
- }
- }
- if (SDL_strcasecmp(d3dcompiler, "none") != 0) {
- SDL_LoadObject(d3dcompiler);
- }
-#endif
-
- /* A funny thing, loading EGL.so first does not work on the Raspberry, so we load libGL* first */
- path = SDL_getenv("SDL_VIDEO_GL_DRIVER");
- if (path != NULL) {
- egl_dll_handle = SDL_LoadObject(path);
- }
-
- if (egl_dll_handle == NULL) {
- if (_this->gl_config.profile_mask == SDL_GL_CONTEXT_PROFILE_ES) {
- if (_this->gl_config.major_version > 1) {
- path = DEFAULT_OGL_ES2;
- egl_dll_handle = SDL_LoadObject(path);
- } else {
- path = DEFAULT_OGL_ES;
- egl_dll_handle = SDL_LoadObject(path);
- if (egl_dll_handle == NULL) {
- path = DEFAULT_OGL_ES_PVR;
- egl_dll_handle = SDL_LoadObject(path);
- }
- }
- }
-#ifdef DEFAULT_OGL
- else {
- path = DEFAULT_OGL;
- egl_dll_handle = SDL_LoadObject(path);
- }
-#endif
- }
- _this->egl_data->egl_dll_handle = egl_dll_handle;
-
- if (egl_dll_handle == NULL) {
- return SDL_SetError("Could not initialize OpenGL / GLES library");
- }
-
- /* Loading libGL* in the previous step took care of loading libEGL.so, but we future proof by double checking */
- if (egl_path != NULL) {
- dll_handle = SDL_LoadObject(egl_path);
- }
- /* Try loading a EGL symbol, if it does not work try the default library paths */
- if (dll_handle == NULL || SDL_LoadFunction(dll_handle, "eglChooseConfig") == NULL) {
- if (dll_handle != NULL) {
- SDL_UnloadObject(dll_handle);
- }
- path = SDL_getenv("SDL_VIDEO_EGL_DRIVER");
- if (path == NULL) {
- path = DEFAULT_EGL;
- }
- dll_handle = SDL_LoadObject(path);
- if (dll_handle == NULL || SDL_LoadFunction(dll_handle, "eglChooseConfig") == NULL) {
- if (dll_handle != NULL) {
- SDL_UnloadObject(dll_handle);
- }
- return SDL_SetError("Could not load EGL library");
- }
- SDL_ClearError();
- }
-
- _this->egl_data->dll_handle = dll_handle;
-
- /* Load new function pointers */
- LOAD_FUNC(eglGetDisplay);
- LOAD_FUNC(eglInitialize);
- LOAD_FUNC(eglTerminate);
- LOAD_FUNC(eglGetProcAddress);
- LOAD_FUNC(eglChooseConfig);
- LOAD_FUNC(eglGetConfigAttrib);
- LOAD_FUNC(eglCreateContext);
- LOAD_FUNC(eglDestroyContext);
- LOAD_FUNC(eglCreateWindowSurface);
- LOAD_FUNC(eglDestroySurface);
- LOAD_FUNC(eglMakeCurrent);
- LOAD_FUNC(eglSwapBuffers);
- LOAD_FUNC(eglSwapInterval);
- LOAD_FUNC(eglWaitNative);
- LOAD_FUNC(eglWaitGL);
- LOAD_FUNC(eglBindAPI);
- LOAD_FUNC(eglQueryString);
-
-#if !defined(__WINRT__)
- _this->egl_data->egl_display = _this->egl_data->eglGetDisplay(native_display);
- if (!_this->egl_data->egl_display) {
- return SDL_SetError("Could not get EGL display");
- }
-
- if (_this->egl_data->eglInitialize(_this->egl_data->egl_display, NULL, NULL) != EGL_TRUE) {
- return SDL_SetError("Could not initialize EGL");
- }
-#endif
-
- _this->gl_config.driver_loaded = 1;
-
- if (path) {
- SDL_strlcpy(_this->gl_config.driver_path, path, sizeof(_this->gl_config.driver_path) - 1);
- } else {
- *_this->gl_config.driver_path = '\0';
- }
-
- return 0;
-}
-
-int
-SDL_EGL_ChooseConfig(_THIS)
-{
- /* 64 seems nice. */
- EGLint attribs[64];
- EGLint found_configs = 0, value;
- /* 128 seems even nicer here */
- EGLConfig configs[128];
- int i, j, best_bitdiff = -1, bitdiff;
-
- if (!_this->egl_data) {
- /* The EGL library wasn't loaded, SDL_GetError() should have info */
- return -1;
- }
-
- /* Get a valid EGL configuration */
- i = 0;
- attribs[i++] = EGL_RED_SIZE;
- attribs[i++] = _this->gl_config.red_size;
- attribs[i++] = EGL_GREEN_SIZE;
- attribs[i++] = _this->gl_config.green_size;
- attribs[i++] = EGL_BLUE_SIZE;
- attribs[i++] = _this->gl_config.blue_size;
-
- if (_this->gl_config.alpha_size) {
- attribs[i++] = EGL_ALPHA_SIZE;
- attribs[i++] = _this->gl_config.alpha_size;
- }
-
- if (_this->gl_config.buffer_size) {
- attribs[i++] = EGL_BUFFER_SIZE;
- attribs[i++] = _this->gl_config.buffer_size;
- }
-
- attribs[i++] = EGL_DEPTH_SIZE;
- attribs[i++] = _this->gl_config.depth_size;
-
- if (_this->gl_config.stencil_size) {
- attribs[i++] = EGL_STENCIL_SIZE;
- attribs[i++] = _this->gl_config.stencil_size;
- }
-
- if (_this->gl_config.multisamplebuffers) {
- attribs[i++] = EGL_SAMPLE_BUFFERS;
- attribs[i++] = _this->gl_config.multisamplebuffers;
- }
-
- if (_this->gl_config.multisamplesamples) {
- attribs[i++] = EGL_SAMPLES;
- attribs[i++] = _this->gl_config.multisamplesamples;
- }
-
- if (_this->gl_config.framebuffer_srgb_capable) {
-#ifdef EGL_KHR_gl_colorspace
- if (SDL_EGL_HasExtension(_this, "EGL_KHR_gl_colorspace")) {
- attribs[i++] = EGL_GL_COLORSPACE_KHR;
- attribs[i++] = EGL_GL_COLORSPACE_SRGB_KHR;
- } else
-#endif
- {
- return SDL_SetError("EGL implementation does not support sRGB system framebuffers");
- }
- }
-
- attribs[i++] = EGL_RENDERABLE_TYPE;
- if (_this->gl_config.profile_mask == SDL_GL_CONTEXT_PROFILE_ES) {
-#ifdef EGL_KHR_create_context
- if (_this->gl_config.major_version >= 3 &&
- SDL_EGL_HasExtension(_this, "EGL_KHR_create_context")) {
- attribs[i++] = EGL_OPENGL_ES3_BIT_KHR;
- } else
-#endif
- if (_this->gl_config.major_version >= 2) {
- attribs[i++] = EGL_OPENGL_ES2_BIT;
- } else {
- attribs[i++] = EGL_OPENGL_ES_BIT;
- }
- _this->egl_data->eglBindAPI(EGL_OPENGL_ES_API);
- } else {
- attribs[i++] = EGL_OPENGL_BIT;
- _this->egl_data->eglBindAPI(EGL_OPENGL_API);
- }
-
- attribs[i++] = EGL_NONE;
-
- if (_this->egl_data->eglChooseConfig(_this->egl_data->egl_display,
- attribs,
- configs, SDL_arraysize(configs),
- &found_configs) == EGL_FALSE ||
- found_configs == 0) {
- return SDL_SetError("Couldn't find matching EGL config");
- }
-
- /* eglChooseConfig returns a number of configurations that match or exceed the requested attribs. */
- /* From those, we select the one that matches our requirements more closely via a makeshift algorithm */
-
- for (i = 0; i < found_configs; i++ ) {
- bitdiff = 0;
- for (j = 0; j < SDL_arraysize(attribs) - 1; j += 2) {
- if (attribs[j] == EGL_NONE) {
- break;
- }
-
- if ( attribs[j+1] != EGL_DONT_CARE && (
- attribs[j] == EGL_RED_SIZE ||
- attribs[j] == EGL_GREEN_SIZE ||
- attribs[j] == EGL_BLUE_SIZE ||
- attribs[j] == EGL_ALPHA_SIZE ||
- attribs[j] == EGL_DEPTH_SIZE ||
- attribs[j] == EGL_STENCIL_SIZE)) {
- _this->egl_data->eglGetConfigAttrib(_this->egl_data->egl_display, configs[i], attribs[j], &value);
- bitdiff += value - attribs[j + 1]; /* value is always >= attrib */
- }
- }
-
- if (bitdiff < best_bitdiff || best_bitdiff == -1) {
- _this->egl_data->egl_config = configs[i];
-
- best_bitdiff = bitdiff;
- }
-
- if (bitdiff == 0) {
- break; /* we found an exact match! */
- }
- }
-
- return 0;
-}
-
-SDL_GLContext
-SDL_EGL_CreateContext(_THIS, EGLSurface egl_surface)
-{
- /* max 14 values plus terminator. */
- EGLint attribs[15];
- int attr = 0;
-
- EGLContext egl_context, share_context = EGL_NO_CONTEXT;
- EGLint profile_mask = _this->gl_config.profile_mask;
- EGLint major_version = _this->gl_config.major_version;
- EGLint minor_version = _this->gl_config.minor_version;
- SDL_bool profile_es = (profile_mask == SDL_GL_CONTEXT_PROFILE_ES);
-
- if (!_this->egl_data) {
- /* The EGL library wasn't loaded, SDL_GetError() should have info */
- return NULL;
- }
-
- if (_this->gl_config.share_with_current_context) {
- share_context = (EGLContext)SDL_GL_GetCurrentContext();
- }
-
- /* Set the context version and other attributes. */
- if ((major_version < 3 || (minor_version == 0 && profile_es)) &&
- _this->gl_config.flags == 0 &&
- (profile_mask == 0 || profile_es)) {
- /* Create a context without using EGL_KHR_create_context attribs.
- * When creating a GLES context without EGL_KHR_create_context we can
- * only specify the major version. When creating a desktop GL context
- * we can't specify any version, so we only try in that case when the
- * version is less than 3.0 (matches SDL's GLX/WGL behavior.)
- */
- if (profile_es) {
- attribs[attr++] = EGL_CONTEXT_CLIENT_VERSION;
- attribs[attr++] = SDL_max(major_version, 1);
- }
- } else {
-#ifdef EGL_KHR_create_context
- /* The Major/minor version, context profiles, and context flags can
- * only be specified when this extension is available.
- */
- if (SDL_EGL_HasExtension(_this, "EGL_KHR_create_context")) {
- attribs[attr++] = EGL_CONTEXT_MAJOR_VERSION_KHR;
- attribs[attr++] = major_version;
- attribs[attr++] = EGL_CONTEXT_MINOR_VERSION_KHR;
- attribs[attr++] = minor_version;
-
- /* SDL profile bits match EGL profile bits. */
- if (profile_mask != 0 && profile_mask != SDL_GL_CONTEXT_PROFILE_ES) {
- attribs[attr++] = EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR;
- attribs[attr++] = profile_mask;
- }
-
- /* SDL flags match EGL flags. */
- if (_this->gl_config.flags != 0) {
- attribs[attr++] = EGL_CONTEXT_FLAGS_KHR;
- attribs[attr++] = _this->gl_config.flags;
- }
- } else
-#endif /* EGL_KHR_create_context */
- {
- SDL_SetError("Could not create EGL context (context attributes are not supported)");
- return NULL;
- }
- }
-
- attribs[attr++] = EGL_NONE;
-
- /* Bind the API */
- if (profile_es) {
- _this->egl_data->eglBindAPI(EGL_OPENGL_ES_API);
- } else {
- _this->egl_data->eglBindAPI(EGL_OPENGL_API);
- }
-
- egl_context = _this->egl_data->eglCreateContext(_this->egl_data->egl_display,
- _this->egl_data->egl_config,
- share_context, attribs);
-
- if (egl_context == EGL_NO_CONTEXT) {
- SDL_SetError("Could not create EGL context");
- return NULL;
- }
-
- _this->egl_data->egl_swapinterval = 0;
-
- if (SDL_EGL_MakeCurrent(_this, egl_surface, egl_context) < 0) {
- SDL_EGL_DeleteContext(_this, egl_context);
- SDL_SetError("Could not make EGL context current");
- return NULL;
- }
-
- return (SDL_GLContext) egl_context;
-}
-
-int
-SDL_EGL_MakeCurrent(_THIS, EGLSurface egl_surface, SDL_GLContext context)
-{
- EGLContext egl_context = (EGLContext) context;
-
- if (!_this->egl_data) {
- return SDL_SetError("OpenGL not initialized");
- }
-
- /* The android emulator crashes badly if you try to eglMakeCurrent
- * with a valid context and invalid surface, so we have to check for both here.
- */
- if (!egl_context || !egl_surface) {
- _this->egl_data->eglMakeCurrent(_this->egl_data->egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
- } else {
- if (!_this->egl_data->eglMakeCurrent(_this->egl_data->egl_display,
- egl_surface, egl_surface, egl_context)) {
- return SDL_SetError("Unable to make EGL context current");
- }
- }
-
- return 0;
-}
-
-int
-SDL_EGL_SetSwapInterval(_THIS, int interval)
-{
- EGLBoolean status;
-
- if (!_this->egl_data) {
- return SDL_SetError("EGL not initialized");
- }
-
- status = _this->egl_data->eglSwapInterval(_this->egl_data->egl_display, interval);
- if (status == EGL_TRUE) {
- _this->egl_data->egl_swapinterval = interval;
- return 0;
- }
-
- return SDL_SetError("Unable to set the EGL swap interval");
-}
-
-int
-SDL_EGL_GetSwapInterval(_THIS)
-{
- if (!_this->egl_data) {
- SDL_SetError("EGL not initialized");
- return 0;
- }
-
- return _this->egl_data->egl_swapinterval;
-}
-
-void
-SDL_EGL_SwapBuffers(_THIS, EGLSurface egl_surface)
-{
- _this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, egl_surface);
-}
-
-void
-SDL_EGL_DeleteContext(_THIS, SDL_GLContext context)
-{
- EGLContext egl_context = (EGLContext) context;
-
- /* Clean up GLES and EGL */
- if (!_this->egl_data) {
- return;
- }
-
- if (egl_context != NULL && egl_context != EGL_NO_CONTEXT) {
- SDL_EGL_MakeCurrent(_this, NULL, NULL);
- _this->egl_data->eglDestroyContext(_this->egl_data->egl_display, egl_context);
- }
-
-}
-
-EGLSurface *
-SDL_EGL_CreateSurface(_THIS, NativeWindowType nw)
-{
- if (SDL_EGL_ChooseConfig(_this) != 0) {
- return EGL_NO_SURFACE;
- }
-
-#if __ANDROID__
- {
- /* Android docs recommend doing this!
- * Ref: http://developer.android.com/reference/android/app/NativeActivity.html
- */
- EGLint format;
- _this->egl_data->eglGetConfigAttrib(_this->egl_data->egl_display,
- _this->egl_data->egl_config,
- EGL_NATIVE_VISUAL_ID, &format);
-
- ANativeWindow_setBuffersGeometry(nw, 0, 0, format);
- }
-#endif
-
- return _this->egl_data->eglCreateWindowSurface(
- _this->egl_data->egl_display,
- _this->egl_data->egl_config,
- nw, NULL);
-}
-
-void
-SDL_EGL_DestroySurface(_THIS, EGLSurface egl_surface)
-{
- if (!_this->egl_data) {
- return;
- }
-
- if (egl_surface != EGL_NO_SURFACE) {
- _this->egl_data->eglDestroySurface(_this->egl_data->egl_display, egl_surface);
- }
-}
-
-#endif /* SDL_VIDEO_OPENGL_EGL */
-
-/* vi: set ts=4 sw=4 expandtab: */
-