diff options
Diffstat (limited to 'Source/3rdParty/SDL2/src/video/SDL_egl.c')
| -rw-r--r-- | Source/3rdParty/SDL2/src/video/SDL_egl.c | 920 |
1 files changed, 0 insertions, 920 deletions
diff --git a/Source/3rdParty/SDL2/src/video/SDL_egl.c b/Source/3rdParty/SDL2/src/video/SDL_egl.c deleted file mode 100644 index 78abc03..0000000 --- a/Source/3rdParty/SDL2/src/video/SDL_egl.c +++ /dev/null @@ -1,920 +0,0 @@ -/* - * Simple DirectMedia Layer - * Copyright (C) 1997-2018 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 -#if SDL_VIDEO_DRIVER_ANDROID -#include <android/native_window.h> -#endif - -#include "SDL_sysvideo.h" -#include "SDL_log.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 ( vc4 ? "libEGL.so.1" : "libbrcmEGL.so" ) -#define DEFAULT_OGL_ES2 ( vc4 ? "libGLESv2.so.2" : "libbrcmGLESv2.so" ) -#define ALT_EGL "libEGL.so" -#define ALT_OGL_ES2 "libGLESv2.so" -#define DEFAULT_OGL_ES_PVR ( vc4 ? "libGLES_CM.so.1" : "libbrcmGLESv2.so" ) -#define DEFAULT_OGL_ES ( vc4 ? "libGLESv1_CM.so.1" : "libbrcmGLESv2.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" - -#elif SDL_VIDEO_DRIVER_COCOA -/* EGL AND OpenGL ES support via ANGLE */ -#define DEFAULT_EGL "libEGL.dylib" -#define DEFAULT_OGL_ES2 "libGLESv2.dylib" -#define DEFAULT_OGL_ES_PVR "libGLES_CM.dylib" //??? -#define DEFAULT_OGL_ES "libGLESv1_CM.dylib" //??? - -#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 */ - -#ifdef SDL_VIDEO_STATIC_ANGLE -#define LOAD_FUNC(NAME) \ -_this->egl_data->NAME = (void *)NAME; -#else -#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); \ -} -#endif - -static const char * SDL_EGL_GetErrorName(EGLint eglErrorCode) -{ -#define SDL_EGL_ERROR_TRANSLATE(e) case e: return #e; - switch (eglErrorCode) { - SDL_EGL_ERROR_TRANSLATE(EGL_SUCCESS); - SDL_EGL_ERROR_TRANSLATE(EGL_NOT_INITIALIZED); - SDL_EGL_ERROR_TRANSLATE(EGL_BAD_ACCESS); - SDL_EGL_ERROR_TRANSLATE(EGL_BAD_ALLOC); - SDL_EGL_ERROR_TRANSLATE(EGL_BAD_ATTRIBUTE); - SDL_EGL_ERROR_TRANSLATE(EGL_BAD_CONTEXT); - SDL_EGL_ERROR_TRANSLATE(EGL_BAD_CONFIG); - SDL_EGL_ERROR_TRANSLATE(EGL_BAD_CURRENT_SURFACE); - SDL_EGL_ERROR_TRANSLATE(EGL_BAD_DISPLAY); - SDL_EGL_ERROR_TRANSLATE(EGL_BAD_SURFACE); - SDL_EGL_ERROR_TRANSLATE(EGL_BAD_MATCH); - SDL_EGL_ERROR_TRANSLATE(EGL_BAD_PARAMETER); - SDL_EGL_ERROR_TRANSLATE(EGL_BAD_NATIVE_PIXMAP); - SDL_EGL_ERROR_TRANSLATE(EGL_BAD_NATIVE_WINDOW); - SDL_EGL_ERROR_TRANSLATE(EGL_CONTEXT_LOST); - } - return ""; -} - -int SDL_EGL_SetErrorEx(const char * message, const char * eglFunctionName, EGLint eglErrorCode) -{ - const char * errorText = SDL_EGL_GetErrorName(eglErrorCode); - char altErrorText[32]; - if (errorText[0] == '\0') { - /* An unknown-to-SDL error code was reported. Report its hexadecimal value, instead of its name. */ - SDL_snprintf(altErrorText, SDL_arraysize(altErrorText), "0x%x", (unsigned int)eglErrorCode); - errorText = altErrorText; - } - return SDL_SetError("%s (call to %s failed, reporting an error of %s)", message, eglFunctionName, errorText); -} - -/* EGL implementation of SDL OpenGL ES support */ -typedef enum { - SDL_EGL_DISPLAY_EXTENSION, - SDL_EGL_CLIENT_EXTENSION -} SDL_EGL_ExtensionType; - -static SDL_bool SDL_EGL_HasExtension(_THIS, SDL_EGL_ExtensionType type, const char *ext) -{ - size_t ext_len; - const char *ext_override; - const char *egl_extstr; - const char *ext_start; - - /* Invalid extensions can be rejected early */ - if (ext == NULL || *ext == 0 || SDL_strchr(ext, ' ') != NULL) { - /* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "SDL_EGL_HasExtension: Invalid EGL extension"); */ - return SDL_FALSE; - } - - /* Extensions can be masked with an environment variable. - * Unlike the OpenGL override, this will use the set bits of an integer - * to disable the extension. - * Bit Action - * 0 If set, the display extension is masked and not present to SDL. - * 1 If set, the client extension is masked and not present to SDL. - */ - ext_override = SDL_getenv(ext); - if (ext_override != NULL) { - int disable_ext = SDL_atoi(ext_override); - if (disable_ext & 0x01 && type == SDL_EGL_DISPLAY_EXTENSION) { - return SDL_FALSE; - } else if (disable_ext & 0x02 && type == SDL_EGL_CLIENT_EXTENSION) { - return SDL_FALSE; - } - } - - ext_len = SDL_strlen(ext); - switch (type) { - case SDL_EGL_DISPLAY_EXTENSION: - egl_extstr = _this->egl_data->eglQueryString(_this->egl_data->egl_display, EGL_EXTENSIONS); - break; - case SDL_EGL_CLIENT_EXTENSION: - /* EGL_EXT_client_extensions modifies eglQueryString to return client extensions - * if EGL_NO_DISPLAY is passed. Implementations without it are required to return NULL. - * This behavior is included in EGL 1.5. - */ - egl_extstr = _this->egl_data->eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS); - break; - default: - /* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "SDL_EGL_HasExtension: Invalid extension type"); */ - return SDL_FALSE; - } - - if (egl_extstr != NULL) { - ext_start = egl_extstr; - - while (*ext_start) { - ext_start = SDL_strstr(ext_start, ext); - if (ext_start == NULL) { - return SDL_FALSE; - } - /* Check if the match is not just a substring of one of the extensions */ - if (ext_start == egl_extstr || *(ext_start - 1) == ' ') { - if (ext_start[ext_len] == ' ' || ext_start[ext_len] == 0) { - return SDL_TRUE; - } - } - /* If the search stopped in the middle of an extension, skip to the end of it */ - ext_start += ext_len; - while (*ext_start != ' ' && *ext_start != 0) { - ext_start++; - } - } - } - - return SDL_FALSE; -} - -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) - 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, EGLenum platform) -{ - void *dll_handle = NULL, *egl_dll_handle = NULL; /* The naming is counter intuitive, but hey, I just work here -- Gabriel */ - const char *path = NULL; - int egl_version_major = 0, egl_version_minor = 0; -#if SDL_VIDEO_DRIVER_WINDOWS || SDL_VIDEO_DRIVER_WINRT - const char *d3dcompiler; -#endif -#if SDL_VIDEO_DRIVER_RPI - SDL_bool vc4 = (0 == access("/sys/module/vc4/", F_OK)); -#endif - - if (_this->egl_data) { - return SDL_SetError("EGL 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) { - if (SDL_LoadObject(d3dcompiler) == NULL) { - SDL_ClearError(); - } - } -#endif - -#ifndef SDL_VIDEO_STATIC_ANGLE - /* 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); -#ifdef ALT_OGL_ES2 - if (egl_dll_handle == NULL && !vc4) { - path = ALT_OGL_ES2; - egl_dll_handle = SDL_LoadObject(path); - } -#endif - - } 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 ALT_OGL_ES2 - if (egl_dll_handle == NULL && !vc4) { - path = ALT_OGL_ES2; - egl_dll_handle = SDL_LoadObject(path); - } -#endif - } - } -#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); - -#ifdef ALT_EGL - if (dll_handle == NULL && !vc4) { - path = ALT_EGL; - dll_handle = SDL_LoadObject(path); - } -#endif - - 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(); - } -#endif - - _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(eglCreatePbufferSurface); - 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); - LOAD_FUNC(eglGetError); - - if (_this->egl_data->eglQueryString) { - /* EGL 1.5 allows querying for client version */ - const char *egl_version = _this->egl_data->eglQueryString(EGL_NO_DISPLAY, EGL_VERSION); - if (egl_version != NULL) { - if (SDL_sscanf(egl_version, "%d.%d", &egl_version_major, &egl_version_minor) != 2) { - egl_version_major = 0; - egl_version_minor = 0; - SDL_LogWarn(SDL_LOG_CATEGORY_VIDEO, "Could not parse EGL version string: %s", egl_version); - } - } - } - - _this->egl_data->egl_version_major = egl_version_major; - _this->egl_data->egl_version_minor = egl_version_minor; - - if (egl_version_major == 1 && egl_version_minor == 5) { - LOAD_FUNC(eglGetPlatformDisplay); - } - - _this->egl_data->egl_display = EGL_NO_DISPLAY; -#if !defined(__WINRT__) - if (platform) { - if (egl_version_major == 1 && egl_version_minor == 5) { - _this->egl_data->egl_display = _this->egl_data->eglGetPlatformDisplay(platform, (void *)(size_t)native_display, NULL); - } else { - if (SDL_EGL_HasExtension(_this, SDL_EGL_CLIENT_EXTENSION, "EGL_EXT_platform_base")) { - _this->egl_data->eglGetPlatformDisplayEXT = SDL_EGL_GetProcAddress(_this, "eglGetPlatformDisplayEXT"); - if (_this->egl_data->eglGetPlatformDisplayEXT) { - _this->egl_data->egl_display = _this->egl_data->eglGetPlatformDisplayEXT(platform, (void *)(size_t)native_display, NULL); - } - } - } - } - /* Try the implementation-specific eglGetDisplay even if eglGetPlatformDisplay fails */ - if (_this->egl_data->egl_display == EGL_NO_DISPLAY) { - _this->egl_data->egl_display = _this->egl_data->eglGetDisplay(native_display); - } - if (_this->egl_data->egl_display == EGL_NO_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 - - 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; -} - -#ifdef DUMP_EGL_CONFIG - -#define ATTRIBUTE(_attr) { _attr, #_attr } - -typedef struct { - EGLint attribute; - char const* name; -} Attribute; - -Attribute attributes[] = { - ATTRIBUTE( EGL_BUFFER_SIZE ), - ATTRIBUTE( EGL_ALPHA_SIZE ), - ATTRIBUTE( EGL_BLUE_SIZE ), - ATTRIBUTE( EGL_GREEN_SIZE ), - ATTRIBUTE( EGL_RED_SIZE ), - ATTRIBUTE( EGL_DEPTH_SIZE ), - ATTRIBUTE( EGL_STENCIL_SIZE ), - ATTRIBUTE( EGL_CONFIG_CAVEAT ), - ATTRIBUTE( EGL_CONFIG_ID ), - ATTRIBUTE( EGL_LEVEL ), - ATTRIBUTE( EGL_MAX_PBUFFER_HEIGHT ), - ATTRIBUTE( EGL_MAX_PBUFFER_WIDTH ), - ATTRIBUTE( EGL_MAX_PBUFFER_PIXELS ), - ATTRIBUTE( EGL_NATIVE_RENDERABLE ), - ATTRIBUTE( EGL_NATIVE_VISUAL_ID ), - ATTRIBUTE( EGL_NATIVE_VISUAL_TYPE ), - ATTRIBUTE( EGL_SAMPLES ), - ATTRIBUTE( EGL_SAMPLE_BUFFERS ), - ATTRIBUTE( EGL_SURFACE_TYPE ), - ATTRIBUTE( EGL_TRANSPARENT_TYPE ), - ATTRIBUTE( EGL_TRANSPARENT_BLUE_VALUE ), - ATTRIBUTE( EGL_TRANSPARENT_GREEN_VALUE ), - ATTRIBUTE( EGL_TRANSPARENT_RED_VALUE ), - ATTRIBUTE( EGL_BIND_TO_TEXTURE_RGB ), - ATTRIBUTE( EGL_BIND_TO_TEXTURE_RGBA ), - ATTRIBUTE( EGL_MIN_SWAP_INTERVAL ), - ATTRIBUTE( EGL_MAX_SWAP_INTERVAL ), - ATTRIBUTE( EGL_LUMINANCE_SIZE ), - ATTRIBUTE( EGL_ALPHA_MASK_SIZE ), - ATTRIBUTE( EGL_COLOR_BUFFER_TYPE ), - ATTRIBUTE( EGL_RENDERABLE_TYPE ), - ATTRIBUTE( EGL_MATCH_NATIVE_PIXMAP ), - ATTRIBUTE( EGL_CONFORMANT ), -}; - - -static void dumpconfig(_THIS, EGLConfig config) -{ - int attr; - for (attr = 0 ; attr<sizeof(attributes)/sizeof(Attribute) ; attr++) { - EGLint value; - _this->egl_data->eglGetConfigAttrib(_this->egl_data->egl_display, config, attributes[attr].attribute, &value); - SDL_Log("\t%-32s: %10d (0x%08x)\n", attributes[attr].name, value, value); - } -} - -#endif /* DUMP_EGL_CONFIG */ - -int -SDL_EGL_ChooseConfig(_THIS) -{ -/* 64 seems nice. */ - EGLint attribs[64]; - EGLint found_configs = 0, value; -#ifdef SDL_VIDEO_DRIVER_KMSDRM - /* Intel EGL on KMS/DRM (al least) returns invalid configs that confuse the bitdiff search used */ - /* later in this function, so we simply use the first one when using the KMSDRM driver for now. */ - EGLConfig configs[1]; -#else - /* 128 seems even nicer here */ - EGLConfig configs[128]; -#endif - 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; - } - - 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, SDL_EGL_DISPLAY_EXTENSION, "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); - } - - if (_this->egl_data->egl_surfacetype) { - attribs[i++] = EGL_SURFACE_TYPE; - attribs[i++] = _this->egl_data->egl_surfacetype; - } - - 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_EGL_SetError("Couldn't find matching EGL config", "eglChooseConfig"); - } - - /* 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! */ - } - } - -#ifdef DUMP_EGL_CONFIG - dumpconfig(_this, _this->egl_data->egl_config); -#endif - - 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(); - } - -#if SDL_VIDEO_DRIVER_ANDROID - if ((_this->gl_config.flags & SDL_GL_CONTEXT_DEBUG_FLAG) != 0) { - /* If SDL_GL_CONTEXT_DEBUG_FLAG is set but EGL_KHR_debug unsupported, unset. - * This is required because some Android devices like to complain about it - * by "silently" failing, logging a hint which could be easily overlooked: - * E/libEGL (26984): validate_display:255 error 3008 (EGL_BAD_DISPLAY) - * The following explicitly checks for EGL_KHR_debug before EGL 1.5 - */ - int egl_version_major = _this->egl_data->egl_version_major; - int egl_version_minor = _this->egl_data->egl_version_minor; - if (((egl_version_major < 1) || (egl_version_major == 1 && egl_version_minor < 5)) && - !SDL_EGL_HasExtension(_this, SDL_EGL_DISPLAY_EXTENSION, "EGL_KHR_debug")) { - /* SDL profile bits match EGL profile bits. */ - _this->gl_config.flags &= ~SDL_GL_CONTEXT_DEBUG_FLAG; - } - } -#endif - - /* 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, SDL_EGL_DISPLAY_EXTENSION, "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; - } - } - - if (_this->gl_config.no_error) { -#ifdef EGL_KHR_create_context_no_error - if (SDL_EGL_HasExtension(_this, SDL_EGL_DISPLAY_EXTENSION, "EGL_KHR_create_context_no_error")) { - attribs[attr++] = EGL_CONTEXT_OPENGL_NO_ERROR_KHR; - attribs[attr++] = _this->gl_config.no_error; - } else -#endif - { - SDL_SetError("EGL implementation does not support no_error contexts"); - 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_EGL_SetError("Could not create EGL context", "eglCreateContext"); - return NULL; - } - - _this->egl_data->egl_swapinterval = 0; - - if (SDL_EGL_MakeCurrent(_this, egl_surface, egl_context) < 0) { - /* Save the SDL error set by SDL_EGL_MakeCurrent */ - char errorText[1024]; - SDL_strlcpy(errorText, SDL_GetError(), SDL_arraysize(errorText)); - - /* Delete the context, which may alter the value returned by SDL_GetError() */ - SDL_EGL_DeleteContext(_this, egl_context); - - /* Restore the SDL error */ - SDL_SetError("%s", errorText); - - 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_EGL_SetError("Unable to make EGL context current", "eglMakeCurrent"); - } - } - - 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_EGL_SetError("Unable to set the EGL swap interval", "eglSwapInterval"); -} - -int -SDL_EGL_GetSwapInterval(_THIS) -{ - if (!_this->egl_data) { - SDL_SetError("EGL not initialized"); - return 0; - } - - return _this->egl_data->egl_swapinterval; -} - -int -SDL_EGL_SwapBuffers(_THIS, EGLSurface egl_surface) -{ - if (!_this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, egl_surface)) { - return SDL_EGL_SetError("unable to show color buffer in an OS-native window", "eglSwapBuffers"); - } - return 0; -} - -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) { - _this->egl_data->eglDestroyContext(_this->egl_data->egl_display, egl_context); - } - -} - -EGLSurface * -SDL_EGL_CreateSurface(_THIS, NativeWindowType nw) -{ - /* max 2 values plus terminator. */ - EGLint attribs[3]; - int attr = 0; - - EGLSurface * surface; - - if (SDL_EGL_ChooseConfig(_this) != 0) { - return EGL_NO_SURFACE; - } - -#if SDL_VIDEO_DRIVER_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 - if (_this->gl_config.framebuffer_srgb_capable) { -#ifdef EGL_KHR_gl_colorspace - if (SDL_EGL_HasExtension(_this, SDL_EGL_DISPLAY_EXTENSION, "EGL_KHR_gl_colorspace")) { - attribs[attr++] = EGL_GL_COLORSPACE_KHR; - attribs[attr++] = EGL_GL_COLORSPACE_SRGB_KHR; - } else -#endif - { - SDL_SetError("EGL implementation does not support sRGB system framebuffers"); - return EGL_NO_SURFACE; - } - } - - attribs[attr++] = EGL_NONE; - - surface = _this->egl_data->eglCreateWindowSurface( - _this->egl_data->egl_display, - _this->egl_data->egl_config, - nw, &attribs[0]); - if (surface == EGL_NO_SURFACE) { - SDL_EGL_SetError("unable to create an EGL window surface", "eglCreateWindowSurface"); - } - return surface; -} - -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: */ - |