| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2013 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_config.h" |
| |
| #if SDL_VIDEO_DRIVER_BWINDOW |
| |
| #include "SDL_bopengl.h" |
| |
| #include <unistd.h> |
| #include <KernelKit.h> |
| #include <OpenGLKit.h> |
| #include "SDL_BWin.h" |
| #include "../../main/beos/SDL_BApp.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| |
| #define BGL_FLAGS BGL_RGB | BGL_DOUBLE |
| |
| static inline SDL_BWin *_ToBeWin(SDL_Window *window) { |
| return ((SDL_BWin*)(window->driverdata)); |
| } |
| |
| static inline SDL_BApp *_GetBeApp() { |
| return ((SDL_BApp*)be_app); |
| } |
| |
| /* Passing a NULL path means load pointers from the application */ |
| int BE_GL_LoadLibrary(_THIS, const char *path) |
| { |
| /* FIXME: Is this working correctly? */ |
| image_info info; |
| int32 cookie = 0; |
| while (get_next_image_info(0, &cookie, &info) == B_OK) { |
| void *location = NULL; |
| if( get_image_symbol(info.id, "glBegin", B_SYMBOL_TYPE_ANY, |
| &location) == B_OK) { |
| |
| _this->gl_config.dll_handle = (void *) info.id; |
| _this->gl_config.driver_loaded = 1; |
| SDL_strlcpy(_this->gl_config.driver_path, "libGL.so", |
| SDL_arraysize(_this->gl_config.driver_path)); |
| } |
| } |
| return 0; |
| } |
| |
| void *BE_GL_GetProcAddress(_THIS, const char *proc) |
| { |
| if (_this->gl_config.dll_handle != NULL) { |
| void *location = NULL; |
| status_t err; |
| if ((err = |
| get_image_symbol((image_id) _this->gl_config.dll_handle, |
| proc, B_SYMBOL_TYPE_ANY, |
| &location)) == B_OK) { |
| return location; |
| } else { |
| SDL_SetError("Couldn't find OpenGL symbol"); |
| return NULL; |
| } |
| } else { |
| SDL_SetError("OpenGL library not loaded"); |
| return NULL; |
| } |
| } |
| |
| |
| |
| |
| void BE_GL_SwapWindow(_THIS, SDL_Window * window) { |
| _ToBeWin(window)->SwapBuffers(); |
| } |
| |
| int BE_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context) { |
| _GetBeApp()->SetCurrentContext(((SDL_BWin*)context)->GetGLView()); |
| return 0; |
| } |
| |
| |
| SDL_GLContext BE_GL_CreateContext(_THIS, SDL_Window * window) { |
| /* FIXME: Not sure what flags should be included here; may want to have |
| most of them */ |
| SDL_BWin *bwin = _ToBeWin(window); |
| bwin->CreateGLView(BGL_FLAGS); |
| return (SDL_GLContext)(bwin); |
| } |
| |
| void BE_GL_DeleteContext(_THIS, SDL_GLContext context) { |
| /* Currently, automatically unlocks the view */ |
| ((SDL_BWin*)context)->RemoveGLView(); |
| } |
| |
| |
| int BE_GL_SetSwapInterval(_THIS, int interval) { |
| /* TODO: Implement this, if necessary? */ |
| return 0; |
| } |
| |
| int BE_GL_GetSwapInterval(_THIS) { |
| /* TODO: Implement this, if necessary? */ |
| return 0; |
| } |
| |
| |
| void BE_GL_UnloadLibrary(_THIS) { |
| /* TODO: Implement this, if necessary? */ |
| } |
| |
| |
| /* FIXME: This function is meant to clear the OpenGL context when the video |
| mode changes (see SDL_bmodes.cc), but it doesn't seem to help, and is not |
| currently in use. */ |
| void BE_GL_RebootContexts(_THIS) { |
| SDL_Window *window = _this->windows; |
| while(window) { |
| SDL_BWin *bwin = _ToBeWin(window); |
| if(bwin->GetGLView()) { |
| bwin->LockLooper(); |
| bwin->RemoveGLView(); |
| bwin->CreateGLView(BGL_FLAGS); |
| bwin->UnlockLooper(); |
| } |
| window = window->next; |
| } |
| } |
| |
| |
| #if 0 /* Functions from 1.2 that do not appear to be used in 1.3 */ |
| |
| int BE_GL_GetAttribute(_THIS, SDL_GLattr attrib, int *value) |
| { |
| /* |
| FIXME? Right now BE_GL_GetAttribute shouldn't be called between glBegin() and glEnd() - it doesn't use "cached" values |
| */ |
| switch (attrib) { |
| case SDL_GL_RED_SIZE: |
| glGetIntegerv(GL_RED_BITS, (GLint *) value); |
| break; |
| case SDL_GL_GREEN_SIZE: |
| glGetIntegerv(GL_GREEN_BITS, (GLint *) value); |
| break; |
| case SDL_GL_BLUE_SIZE: |
| glGetIntegerv(GL_BLUE_BITS, (GLint *) value); |
| break; |
| case SDL_GL_ALPHA_SIZE: |
| glGetIntegerv(GL_ALPHA_BITS, (GLint *) value); |
| break; |
| case SDL_GL_DOUBLEBUFFER: |
| glGetBooleanv(GL_DOUBLEBUFFER, (GLboolean *) value); |
| break; |
| case SDL_GL_BUFFER_SIZE: |
| int v; |
| glGetIntegerv(GL_RED_BITS, (GLint *) & v); |
| *value = v; |
| glGetIntegerv(GL_GREEN_BITS, (GLint *) & v); |
| *value += v; |
| glGetIntegerv(GL_BLUE_BITS, (GLint *) & v); |
| *value += v; |
| glGetIntegerv(GL_ALPHA_BITS, (GLint *) & v); |
| *value += v; |
| break; |
| case SDL_GL_DEPTH_SIZE: |
| glGetIntegerv(GL_DEPTH_BITS, (GLint *) value); /* Mesa creates 16 only? r5 always 32 */ |
| break; |
| case SDL_GL_STENCIL_SIZE: |
| glGetIntegerv(GL_STENCIL_BITS, (GLint *) value); |
| break; |
| case SDL_GL_ACCUM_RED_SIZE: |
| glGetIntegerv(GL_ACCUM_RED_BITS, (GLint *) value); |
| break; |
| case SDL_GL_ACCUM_GREEN_SIZE: |
| glGetIntegerv(GL_ACCUM_GREEN_BITS, (GLint *) value); |
| break; |
| case SDL_GL_ACCUM_BLUE_SIZE: |
| glGetIntegerv(GL_ACCUM_BLUE_BITS, (GLint *) value); |
| break; |
| case SDL_GL_ACCUM_ALPHA_SIZE: |
| glGetIntegerv(GL_ACCUM_ALPHA_BITS, (GLint *) value); |
| break; |
| case SDL_GL_STEREO: |
| case SDL_GL_MULTISAMPLEBUFFERS: |
| case SDL_GL_MULTISAMPLESAMPLES: |
| default: |
| *value = 0; |
| return (-1); |
| } |
| return 0; |
| } |
| |
| #endif |
| |
| |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* SDL_VIDEO_DRIVER_BWINDOW */ |