diff options
Diffstat (limited to 'Source/external/SDL2/src/video/haiku/SDL_bopengl.cc')
| -rw-r--r-- | Source/external/SDL2/src/video/haiku/SDL_bopengl.cc | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/Source/external/SDL2/src/video/haiku/SDL_bopengl.cc b/Source/external/SDL2/src/video/haiku/SDL_bopengl.cc new file mode 100644 index 0000000..e599062 --- /dev/null +++ b/Source/external/SDL2/src/video/haiku/SDL_bopengl.cc @@ -0,0 +1,176 @@ +/* + 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_HAIKU && SDL_VIDEO_OPENGL + +#include "SDL_bopengl.h" + +#include <unistd.h> +#include <KernelKit.h> +#include <OpenGLKit.h> +#include "SDL_BWin.h" +#include "../../main/haiku/SDL_BApp.h" + +#ifdef __cplusplus +extern "C" { +#endif + + +static SDL_INLINE SDL_BWin *_ToBeWin(SDL_Window *window) { + return ((SDL_BWin*)(window->driverdata)); +} + +static SDL_INLINE SDL_BApp *_GetBeApp() { + return ((SDL_BApp*)be_app); +} + +/* Passing a NULL path means load pointers from the application */ +int HAIKU_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 *) (size_t) 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 *HAIKU_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) (size_t) _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; + } +} + + + + +int HAIKU_GL_SwapWindow(_THIS, SDL_Window * window) { + _ToBeWin(window)->SwapBuffers(); + return 0; +} + +int HAIKU_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context) { + SDL_BWin* win = (SDL_BWin*)context; + _GetBeApp()->SetCurrentContext(win ? win->GetGLView() : NULL); + return 0; +} + + +SDL_GLContext HAIKU_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); + Uint32 gl_flags = BGL_RGB; + if (_this->gl_config.alpha_size) { + gl_flags |= BGL_ALPHA; + } + if (_this->gl_config.depth_size) { + gl_flags |= BGL_DEPTH; + } + if (_this->gl_config.stencil_size) { + gl_flags |= BGL_STENCIL; + } + if (_this->gl_config.double_buffer) { + gl_flags |= BGL_DOUBLE; + } else { + gl_flags |= BGL_SINGLE; + } + if (_this->gl_config.accum_red_size || + _this->gl_config.accum_green_size || + _this->gl_config.accum_blue_size || + _this->gl_config.accum_alpha_size) { + gl_flags |= BGL_ACCUM; + } + bwin->CreateGLView(gl_flags); + return (SDL_GLContext)(bwin); +} + +void HAIKU_GL_DeleteContext(_THIS, SDL_GLContext context) { + /* Currently, automatically unlocks the view */ + ((SDL_BWin*)context)->RemoveGLView(); +} + + +int HAIKU_GL_SetSwapInterval(_THIS, int interval) { + /* TODO: Implement this, if necessary? */ + return SDL_Unsupported(); +} + +int HAIKU_GL_GetSwapInterval(_THIS) { + /* TODO: Implement this, if necessary? */ + return 0; +} + + +void HAIKU_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 HAIKU_GL_RebootContexts(_THIS) { + SDL_Window *window = _this->windows; + while(window) { + SDL_BWin *bwin = _ToBeWin(window); + if(bwin->GetGLView()) { + bwin->LockLooper(); + bwin->RemoveGLView(); + bwin->CreateGLView(bwin->GetGLType()); + bwin->UnlockLooper(); + } + window = window->next; + } +} + + +#ifdef __cplusplus +} +#endif + +#endif /* SDL_VIDEO_DRIVER_HAIKU && SDL_VIDEO_OPENGL */ + +/* vi: set ts=4 sw=4 expandtab: */ |