| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2021 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->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, SDL_FALSE); |
| |
| 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_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: */ |
