diff options
Diffstat (limited to 'source/3rd-party/SDL2/src/video/pandora/SDL_pandora.c')
| -rw-r--r-- | source/3rd-party/SDL2/src/video/pandora/SDL_pandora.c | 838 |
1 files changed, 838 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/video/pandora/SDL_pandora.c b/source/3rd-party/SDL2/src/video/pandora/SDL_pandora.c new file mode 100644 index 0000000..b319b16 --- /dev/null +++ b/source/3rd-party/SDL2/src/video/pandora/SDL_pandora.c @@ -0,0 +1,838 @@ +/* + 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_DRIVER_PANDORA + +/* SDL internals */ +#include "../SDL_sysvideo.h" +#include "SDL_version.h" +#include "SDL_syswm.h" +#include "SDL_loadso.h" +#include "SDL_events.h" +#include "../../events/SDL_mouse_c.h" +#include "../../events/SDL_keyboard_c.h" + +/* PND declarations */ +#include "SDL_pandora.h" +#include "SDL_pandora_events.h" + +/* WIZ declarations */ +#include "GLES/gl.h" +#ifdef WIZ_GLES_LITE +static NativeWindowType hNativeWnd = 0; /* A handle to the window we will create. */ +#endif + +static int +PND_available(void) +{ + return 1; +} + +static void +PND_destroy(SDL_VideoDevice * device) +{ + if (device->driverdata != NULL) { + SDL_free(device->driverdata); + device->driverdata = NULL; + } + SDL_free(device); +} + +static SDL_VideoDevice * +PND_create() +{ + SDL_VideoDevice *device; + SDL_VideoData *phdata; + int status; + + /* Check if pandora could be initialized */ + status = PND_available(); + if (status == 0) { + /* PND could not be used */ + return NULL; + } + + /* Initialize SDL_VideoDevice structure */ + device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice)); + if (device == NULL) { + SDL_OutOfMemory(); + return NULL; + } + + /* Initialize internal Pandora specific data */ + phdata = (SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData)); + if (phdata == NULL) { + SDL_OutOfMemory(); + SDL_free(device); + return NULL; + } + + device->driverdata = phdata; + + phdata->egl_initialized = SDL_TRUE; + + + /* Setup amount of available displays */ + device->num_displays = 0; + + /* Set device free function */ + device->free = PND_destroy; + + /* Setup all functions which we can handle */ + device->VideoInit = PND_videoinit; + device->VideoQuit = PND_videoquit; + device->GetDisplayModes = PND_getdisplaymodes; + device->SetDisplayMode = PND_setdisplaymode; + device->CreateSDLWindow = PND_createwindow; + device->CreateSDLWindowFrom = PND_createwindowfrom; + device->SetWindowTitle = PND_setwindowtitle; + device->SetWindowIcon = PND_setwindowicon; + device->SetWindowPosition = PND_setwindowposition; + device->SetWindowSize = PND_setwindowsize; + device->ShowWindow = PND_showwindow; + device->HideWindow = PND_hidewindow; + device->RaiseWindow = PND_raisewindow; + device->MaximizeWindow = PND_maximizewindow; + device->MinimizeWindow = PND_minimizewindow; + device->RestoreWindow = PND_restorewindow; + device->SetWindowGrab = PND_setwindowgrab; + device->DestroyWindow = PND_destroywindow; +#if 0 + device->GetWindowWMInfo = PND_getwindowwminfo; +#endif + device->GL_LoadLibrary = PND_gl_loadlibrary; + device->GL_GetProcAddress = PND_gl_getprocaddres; + device->GL_UnloadLibrary = PND_gl_unloadlibrary; + device->GL_CreateContext = PND_gl_createcontext; + device->GL_MakeCurrent = PND_gl_makecurrent; + device->GL_SetSwapInterval = PND_gl_setswapinterval; + device->GL_GetSwapInterval = PND_gl_getswapinterval; + device->GL_SwapWindow = PND_gl_swapwindow; + device->GL_DeleteContext = PND_gl_deletecontext; + device->PumpEvents = PND_PumpEvents; + + /* !!! FIXME: implement SetWindowBordered */ + + return device; +} + +VideoBootStrap PND_bootstrap = { +#ifdef WIZ_GLES_LITE + "wiz", + "SDL Wiz Video Driver", +#else + "pandora", + "SDL Pandora Video Driver", +#endif + PND_available, + PND_create +}; + +/*****************************************************************************/ +/* SDL Video and Display initialization/handling functions */ +/*****************************************************************************/ +int +PND_videoinit(_THIS) +{ + SDL_VideoDisplay display; + SDL_DisplayMode current_mode; + + SDL_zero(current_mode); +#ifdef WIZ_GLES_LITE + current_mode.w = 320; + current_mode.h = 240; +#else + current_mode.w = 800; + current_mode.h = 480; +#endif + current_mode.refresh_rate = 60; + current_mode.format = SDL_PIXELFORMAT_RGB565; + current_mode.driverdata = NULL; + + SDL_zero(display); + display.desktop_mode = current_mode; + display.current_mode = current_mode; + display.driverdata = NULL; + + SDL_AddVideoDisplay(&display); + + return 1; +} + +void +PND_videoquit(_THIS) +{ + +} + +void +PND_getdisplaymodes(_THIS, SDL_VideoDisplay * display) +{ + +} + +int +PND_setdisplaymode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode) +{ + return 0; +} + +int +PND_createwindow(_THIS, SDL_Window * window) +{ + SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata; + + SDL_WindowData *wdata; + + /* Allocate window internal data */ + wdata = (SDL_WindowData *) SDL_calloc(1, sizeof(SDL_WindowData)); + if (wdata == NULL) { + return SDL_OutOfMemory(); + } + + /* Setup driver data for this window */ + window->driverdata = wdata; + + /* Check if window must support OpenGL ES rendering */ + if ((window->flags & SDL_WINDOW_OPENGL) == SDL_WINDOW_OPENGL) { + + EGLBoolean initstatus; + + /* Mark this window as OpenGL ES compatible */ + wdata->uses_gles = SDL_TRUE; + + /* Create connection to OpenGL ES */ + if (phdata->egl_display == EGL_NO_DISPLAY) { + phdata->egl_display = eglGetDisplay((NativeDisplayType) 0); + if (phdata->egl_display == EGL_NO_DISPLAY) { + return SDL_SetError("PND: Can't get connection to OpenGL ES"); + } + + initstatus = eglInitialize(phdata->egl_display, NULL, NULL); + if (initstatus != EGL_TRUE) { + return SDL_SetError("PND: Can't init OpenGL ES library"); + } + } + + phdata->egl_refcount++; + } + + /* Window has been successfully created */ + return 0; +} + +int +PND_createwindowfrom(_THIS, SDL_Window * window, const void *data) +{ + return -1; +} + +void +PND_setwindowtitle(_THIS, SDL_Window * window) +{ +} +void +PND_setwindowicon(_THIS, SDL_Window * window, SDL_Surface * icon) +{ +} +void +PND_setwindowposition(_THIS, SDL_Window * window) +{ +} +void +PND_setwindowsize(_THIS, SDL_Window * window) +{ +} +void +PND_showwindow(_THIS, SDL_Window * window) +{ +} +void +PND_hidewindow(_THIS, SDL_Window * window) +{ +} +void +PND_raisewindow(_THIS, SDL_Window * window) +{ +} +void +PND_maximizewindow(_THIS, SDL_Window * window) +{ +} +void +PND_minimizewindow(_THIS, SDL_Window * window) +{ +} +void +PND_restorewindow(_THIS, SDL_Window * window) +{ +} +void +PND_setwindowgrab(_THIS, SDL_Window * window, SDL_bool grabbed) +{ +} +void +PND_destroywindow(_THIS, SDL_Window * window) +{ + SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata; + eglTerminate(phdata->egl_display); +} + +/*****************************************************************************/ +/* SDL Window Manager function */ +/*****************************************************************************/ +#if 0 +SDL_bool +PND_getwindowwminfo(_THIS, SDL_Window * window, struct SDL_SysWMinfo *info) +{ + if (info->version.major <= SDL_MAJOR_VERSION) { + return SDL_TRUE; + } else { + SDL_SetError("application not compiled with SDL %d.%d", + SDL_MAJOR_VERSION, SDL_MINOR_VERSION); + return SDL_FALSE; + } + + /* Failed to get window manager information */ + return SDL_FALSE; +} +#endif + +/*****************************************************************************/ +/* SDL OpenGL/OpenGL ES functions */ +/*****************************************************************************/ +int +PND_gl_loadlibrary(_THIS, const char *path) +{ + /* Check if OpenGL ES library is specified for GF driver */ + if (path == NULL) { + path = SDL_getenv("SDL_OPENGL_LIBRARY"); + if (path == NULL) { + path = SDL_getenv("SDL_OPENGLES_LIBRARY"); + } + } + + /* Check if default library loading requested */ + if (path == NULL) { + /* Already linked with GF library which provides egl* subset of */ + /* functions, use Common profile of OpenGL ES library by default */ +#ifdef WIZ_GLES_LITE + path = "/lib/libopengles_lite.so"; +#else + path = "/usr/lib/libGLES_CM.so"; +#endif + } + + /* Load dynamic library */ + _this->gl_config.dll_handle = SDL_LoadObject(path); + if (!_this->gl_config.dll_handle) { + /* Failed to load new GL ES library */ + return SDL_SetError("PND: Failed to locate OpenGL ES library"); + } + + /* Store OpenGL ES library path and name */ + SDL_strlcpy(_this->gl_config.driver_path, path, + SDL_arraysize(_this->gl_config.driver_path)); + + /* New OpenGL ES library is loaded */ + return 0; +} + +void * +PND_gl_getprocaddres(_THIS, const char *proc) +{ + void *function_address; + + /* Try to get function address through the egl interface */ + function_address = eglGetProcAddress(proc); + if (function_address != NULL) { + return function_address; + } + + /* Then try to get function in the OpenGL ES library */ + if (_this->gl_config.dll_handle) { + function_address = + SDL_LoadFunction(_this->gl_config.dll_handle, proc); + if (function_address != NULL) { + return function_address; + } + } + + /* Failed to get GL ES function address pointer */ + SDL_SetError("PND: Cannot locate OpenGL ES function name"); + return NULL; +} + +void +PND_gl_unloadlibrary(_THIS) +{ + SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata; + + if (phdata->egl_initialized == SDL_TRUE) { + /* Unload OpenGL ES library */ + if (_this->gl_config.dll_handle) { + SDL_UnloadObject(_this->gl_config.dll_handle); + _this->gl_config.dll_handle = NULL; + } + } else { + SDL_SetError("PND: GF initialization failed, no OpenGL ES support"); + } +} + +SDL_GLContext +PND_gl_createcontext(_THIS, SDL_Window * window) +{ + SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata; + SDL_WindowData *wdata = (SDL_WindowData *) window->driverdata; + EGLBoolean status; + EGLint configs; + uint32_t attr_pos; + EGLint attr_value; + EGLint cit; + + /* Check if EGL was initialized */ + if (phdata->egl_initialized != SDL_TRUE) { + SDL_SetError("PND: EGL initialization failed, no OpenGL ES support"); + return NULL; + } + + /* Prepare attributes list to pass them to OpenGL ES */ + attr_pos = 0; + wdata->gles_attributes[attr_pos++] = EGL_SURFACE_TYPE; + wdata->gles_attributes[attr_pos++] = EGL_WINDOW_BIT; + wdata->gles_attributes[attr_pos++] = EGL_RED_SIZE; + wdata->gles_attributes[attr_pos++] = _this->gl_config.red_size; + wdata->gles_attributes[attr_pos++] = EGL_GREEN_SIZE; + wdata->gles_attributes[attr_pos++] = _this->gl_config.green_size; + wdata->gles_attributes[attr_pos++] = EGL_BLUE_SIZE; + wdata->gles_attributes[attr_pos++] = _this->gl_config.blue_size; + wdata->gles_attributes[attr_pos++] = EGL_ALPHA_SIZE; + + /* Setup alpha size in bits */ + if (_this->gl_config.alpha_size) { + wdata->gles_attributes[attr_pos++] = _this->gl_config.alpha_size; + } else { + wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE; + } + + /* Setup color buffer size */ + if (_this->gl_config.buffer_size) { + wdata->gles_attributes[attr_pos++] = EGL_BUFFER_SIZE; + wdata->gles_attributes[attr_pos++] = _this->gl_config.buffer_size; + } else { + wdata->gles_attributes[attr_pos++] = EGL_BUFFER_SIZE; + wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE; + } + + /* Setup depth buffer bits */ + wdata->gles_attributes[attr_pos++] = EGL_DEPTH_SIZE; + wdata->gles_attributes[attr_pos++] = _this->gl_config.depth_size; + + /* Setup stencil bits */ + if (_this->gl_config.stencil_size) { + wdata->gles_attributes[attr_pos++] = EGL_STENCIL_SIZE; + wdata->gles_attributes[attr_pos++] = _this->gl_config.buffer_size; + } else { + wdata->gles_attributes[attr_pos++] = EGL_STENCIL_SIZE; + wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE; + } + + /* Set number of samples in multisampling */ + if (_this->gl_config.multisamplesamples) { + wdata->gles_attributes[attr_pos++] = EGL_SAMPLES; + wdata->gles_attributes[attr_pos++] = + _this->gl_config.multisamplesamples; + } + + /* Multisample buffers, OpenGL ES 1.0 spec defines 0 or 1 buffer */ + if (_this->gl_config.multisamplebuffers) { + wdata->gles_attributes[attr_pos++] = EGL_SAMPLE_BUFFERS; + wdata->gles_attributes[attr_pos++] = + _this->gl_config.multisamplebuffers; + } + + /* Finish attributes list */ + wdata->gles_attributes[attr_pos] = EGL_NONE; + + /* Request first suitable framebuffer configuration */ + status = eglChooseConfig(phdata->egl_display, wdata->gles_attributes, + wdata->gles_configs, 1, &configs); + if (status != EGL_TRUE) { + SDL_SetError("PND: Can't find closest configuration for OpenGL ES"); + return NULL; + } + + /* Check if nothing has been found, try "don't care" settings */ + if (configs == 0) { + int32_t it; + int32_t jt; + GLint depthbits[4] = { 32, 24, 16, EGL_DONT_CARE }; + + for (it = 0; it < 4; it++) { + for (jt = 16; jt >= 0; jt--) { + /* Don't care about color buffer bits, use what exist */ + /* Replace previous set data with EGL_DONT_CARE */ + attr_pos = 0; + wdata->gles_attributes[attr_pos++] = EGL_SURFACE_TYPE; + wdata->gles_attributes[attr_pos++] = EGL_WINDOW_BIT; + wdata->gles_attributes[attr_pos++] = EGL_RED_SIZE; + wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE; + wdata->gles_attributes[attr_pos++] = EGL_GREEN_SIZE; + wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE; + wdata->gles_attributes[attr_pos++] = EGL_BLUE_SIZE; + wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE; + wdata->gles_attributes[attr_pos++] = EGL_ALPHA_SIZE; + wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE; + wdata->gles_attributes[attr_pos++] = EGL_BUFFER_SIZE; + wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE; + + /* Try to find requested or smallest depth */ + if (_this->gl_config.depth_size) { + wdata->gles_attributes[attr_pos++] = EGL_DEPTH_SIZE; + wdata->gles_attributes[attr_pos++] = depthbits[it]; + } else { + wdata->gles_attributes[attr_pos++] = EGL_DEPTH_SIZE; + wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE; + } + + if (_this->gl_config.stencil_size) { + wdata->gles_attributes[attr_pos++] = EGL_STENCIL_SIZE; + wdata->gles_attributes[attr_pos++] = jt; + } else { + wdata->gles_attributes[attr_pos++] = EGL_STENCIL_SIZE; + wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE; + } + + wdata->gles_attributes[attr_pos++] = EGL_SAMPLES; + wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE; + wdata->gles_attributes[attr_pos++] = EGL_SAMPLE_BUFFERS; + wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE; + wdata->gles_attributes[attr_pos] = EGL_NONE; + + /* Request first suitable framebuffer configuration */ + status = + eglChooseConfig(phdata->egl_display, + wdata->gles_attributes, + wdata->gles_configs, 1, &configs); + + if (status != EGL_TRUE) { + SDL_SetError + ("PND: Can't find closest configuration for OpenGL ES"); + return NULL; + } + if (configs != 0) { + break; + } + } + if (configs != 0) { + break; + } + } + + /* No available configs */ + if (configs == 0) { + SDL_SetError("PND: Can't find any configuration for OpenGL ES"); + return NULL; + } + } + + /* Initialize config index */ + wdata->gles_config = 0; + + /* Now check each configuration to find out the best */ + for (cit = 0; cit < configs; cit++) { + uint32_t stencil_found; + uint32_t depth_found; + + stencil_found = 0; + depth_found = 0; + + if (_this->gl_config.stencil_size) { + status = + eglGetConfigAttrib(phdata->egl_display, + wdata->gles_configs[cit], EGL_STENCIL_SIZE, + &attr_value); + if (status == EGL_TRUE) { + if (attr_value != 0) { + stencil_found = 1; + } + } + } else { + stencil_found = 1; + } + + if (_this->gl_config.depth_size) { + status = + eglGetConfigAttrib(phdata->egl_display, + wdata->gles_configs[cit], EGL_DEPTH_SIZE, + &attr_value); + if (status == EGL_TRUE) { + if (attr_value != 0) { + depth_found = 1; + } + } + } else { + depth_found = 1; + } + + /* Exit from loop if found appropriate configuration */ + if ((depth_found != 0) && (stencil_found != 0)) { + break; + } + } + + /* If best could not be found, use first */ + if (cit == configs) { + cit = 0; + } + wdata->gles_config = cit; + + /* Create OpenGL ES context */ + wdata->gles_context = + eglCreateContext(phdata->egl_display, + wdata->gles_configs[wdata->gles_config], NULL, NULL); + if (wdata->gles_context == EGL_NO_CONTEXT) { + SDL_SetError("PND: OpenGL ES context creation has been failed"); + return NULL; + } + +#ifdef WIZ_GLES_LITE + if( !hNativeWnd ) { + hNativeWnd = (NativeWindowType)malloc(16*1024); + + if(!hNativeWnd) + printf( "Error: Wiz framebuffer allocatation failed\n" ); + else + printf( "SDL: Wiz framebuffer allocated: %X\n", hNativeWnd ); + } + else { + printf( "SDL: Wiz framebuffer already allocated: %X\n", hNativeWnd ); + } + + wdata->gles_surface = + eglCreateWindowSurface(phdata->egl_display, + wdata->gles_configs[wdata->gles_config], + hNativeWnd, NULL ); +#else + wdata->gles_surface = + eglCreateWindowSurface(phdata->egl_display, + wdata->gles_configs[wdata->gles_config], + (NativeWindowType) 0, NULL); +#endif + + + if (wdata->gles_surface == 0) { + SDL_SetError("Error : eglCreateWindowSurface failed;"); + return NULL; + } + + /* Make just created context current */ + status = + eglMakeCurrent(phdata->egl_display, wdata->gles_surface, + wdata->gles_surface, wdata->gles_context); + if (status != EGL_TRUE) { + /* Destroy OpenGL ES surface */ + eglDestroySurface(phdata->egl_display, wdata->gles_surface); + eglDestroyContext(phdata->egl_display, wdata->gles_context); + wdata->gles_context = EGL_NO_CONTEXT; + SDL_SetError("PND: Can't set OpenGL ES context on creation"); + return NULL; + } + + _this->gl_config.accelerated = 1; + + /* Always clear stereo enable, since OpenGL ES do not supports stereo */ + _this->gl_config.stereo = 0; + + /* Get back samples and samplebuffers configurations. Rest framebuffer */ + /* parameters could be obtained through the OpenGL ES API */ + status = + eglGetConfigAttrib(phdata->egl_display, + wdata->gles_configs[wdata->gles_config], + EGL_SAMPLES, &attr_value); + if (status == EGL_TRUE) { + _this->gl_config.multisamplesamples = attr_value; + } + status = + eglGetConfigAttrib(phdata->egl_display, + wdata->gles_configs[wdata->gles_config], + EGL_SAMPLE_BUFFERS, &attr_value); + if (status == EGL_TRUE) { + _this->gl_config.multisamplebuffers = attr_value; + } + + /* Get back stencil and depth buffer sizes */ + status = + eglGetConfigAttrib(phdata->egl_display, + wdata->gles_configs[wdata->gles_config], + EGL_DEPTH_SIZE, &attr_value); + if (status == EGL_TRUE) { + _this->gl_config.depth_size = attr_value; + } + status = + eglGetConfigAttrib(phdata->egl_display, + wdata->gles_configs[wdata->gles_config], + EGL_STENCIL_SIZE, &attr_value); + if (status == EGL_TRUE) { + _this->gl_config.stencil_size = attr_value; + } + + /* Under PND OpenGL ES output can't be double buffered */ + _this->gl_config.double_buffer = 0; + + /* GL ES context was successfully created */ + return wdata->gles_context; +} + +int +PND_gl_makecurrent(_THIS, SDL_Window * window, SDL_GLContext context) +{ + SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata; + SDL_WindowData *wdata; + EGLBoolean status; + + if (phdata->egl_initialized != SDL_TRUE) { + return SDL_SetError("PND: GF initialization failed, no OpenGL ES support"); + } + + if ((window == NULL) && (context == NULL)) { + status = + eglMakeCurrent(phdata->egl_display, EGL_NO_SURFACE, + EGL_NO_SURFACE, EGL_NO_CONTEXT); + if (status != EGL_TRUE) { + /* Failed to set current GL ES context */ + return SDL_SetError("PND: Can't set OpenGL ES context"); + } + } else { + wdata = (SDL_WindowData *) window->driverdata; + if (wdata->gles_surface == EGL_NO_SURFACE) { + return SDL_SetError + ("PND: OpenGL ES surface is not initialized for this window"); + } + if (wdata->gles_context == EGL_NO_CONTEXT) { + return SDL_SetError + ("PND: OpenGL ES context is not initialized for this window"); + } + if (wdata->gles_context != context) { + return SDL_SetError + ("PND: OpenGL ES context is not belong to this window"); + } + status = + eglMakeCurrent(phdata->egl_display, wdata->gles_surface, + wdata->gles_surface, wdata->gles_context); + if (status != EGL_TRUE) { + /* Failed to set current GL ES context */ + return SDL_SetError("PND: Can't set OpenGL ES context"); + } + } + return 0; +} + +int +PND_gl_setswapinterval(_THIS, int interval) +{ + SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata; + EGLBoolean status; + + if (phdata->egl_initialized != SDL_TRUE) { + return SDL_SetError("PND: EGL initialization failed, no OpenGL ES support"); + } + + /* Check if OpenGL ES connection has been initialized */ + if (phdata->egl_display != EGL_NO_DISPLAY) { + /* Set swap OpenGL ES interval */ + status = eglSwapInterval(phdata->egl_display, interval); + if (status == EGL_TRUE) { + /* Return success to upper level */ + phdata->swapinterval = interval; + return 0; + } + } + + /* Failed to set swap interval */ + return SDL_SetError("PND: Cannot set swap interval"); +} + +int +PND_gl_getswapinterval(_THIS) +{ + return ((SDL_VideoData *) _this->driverdata)->swapinterval; +} + +int +PND_gl_swapwindow(_THIS, SDL_Window * window) +{ + SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata; + SDL_WindowData *wdata = (SDL_WindowData *) window->driverdata; + + if (phdata->egl_initialized != SDL_TRUE) { + return SDL_SetError("PND: GLES initialization failed, no OpenGL ES support"); + } + + /* Many applications do not uses glFinish(), so we call it for them */ + glFinish(); + + /* Wait until OpenGL ES rendering is completed */ + eglWaitGL(); + + eglSwapBuffers(phdata->egl_display, wdata->gles_surface); + return 0; +} + +void +PND_gl_deletecontext(_THIS, SDL_GLContext context) +{ + SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata; + EGLBoolean status; + + if (phdata->egl_initialized != SDL_TRUE) { + SDL_SetError("PND: GLES initialization failed, no OpenGL ES support"); + return; + } + + /* Check if OpenGL ES connection has been initialized */ + if (phdata->egl_display != EGL_NO_DISPLAY) { + if (context != EGL_NO_CONTEXT) { + status = eglDestroyContext(phdata->egl_display, context); + if (status != EGL_TRUE) { + /* Error during OpenGL ES context destroying */ + SDL_SetError("PND: OpenGL ES context destroy error"); + return; + } + } + } + +#ifdef WIZ_GLES_LITE + if( hNativeWnd != 0 ) + { + free(hNativeWnd); + hNativeWnd = 0; + printf( "SDL: Wiz framebuffer released\n" ); + } +#endif + + return; +} + +#endif /* SDL_VIDEO_DRIVER_PANDORA */ + +/* vi: set ts=4 sw=4 expandtab: */ |