Atlas - SDL_bopengl.cc
Home / ext / SDL / src / video / haiku Lines: 4 | Size: 6124 bytes [Download] [Show on GitHub] [Search similar files] [Raw] [Raw (proxy)][FILE BEGIN]1/* 2 Simple DirectMedia Layer 3 Copyright (C) 1997-2025 Sam Lantinga <[email protected]> 4 5 This software is provided 'as-is', without any express or implied 6 warranty. In no event will the authors be held liable for any damages 7 arising from the use of this software. 8 9 Permission is granted to anyone to use this software for any purpose, 10 including commercial applications, and to alter it and redistribute it 11 freely, subject to the following restrictions: 12 13 1. The origin of this software must not be misrepresented; you must not 14 claim that you wrote the original software. If you use this software 15 in a product, an acknowledgment in the product documentation would be 16 appreciated but is not required. 17 2. Altered source versions must be plainly marked as such, and must not be 18 misrepresented as being the original software. 19 3. This notice may not be removed or altered from any source distribution. 20*/ 21#include "SDL_internal.h" 22 23#if defined(SDL_VIDEO_DRIVER_HAIKU) && defined(SDL_VIDEO_OPENGL) 24 25#include "SDL_bopengl.h" 26 27#include <unistd.h> 28#include <KernelKit.h> 29#include <OpenGLKit.h> 30#include "SDL_BWin.h" 31#include "../../core/haiku/SDL_BApp.h" 32 33#ifdef __cplusplus 34extern "C" { 35#endif 36 37 38static SDL_INLINE SDL_BWin *_ToBeWin(SDL_Window *window) 39{ 40 return (SDL_BWin *)(window->internal); 41} 42 43static SDL_INLINE SDL_BLooper *_GetBeLooper() 44{ 45 return SDL_Looper; 46} 47 48// Passing a NULL path means load pointers from the application 49bool HAIKU_GL_LoadLibrary(SDL_VideoDevice *_this, const char *path) 50{ 51// FIXME: Is this working correctly? 52 image_info info; 53 int32 cookie = 0; 54 while (get_next_image_info(0, &cookie, &info) == B_OK) { 55 void *location = NULL; 56 if ( get_image_symbol(info.id, "glBegin", B_SYMBOL_TYPE_ANY, 57 &location) == B_OK) { 58 59 _this->gl_config.dll_handle = (SDL_SharedObject *) (addr_t) info.id; 60 _this->gl_config.driver_loaded = 1; 61 SDL_strlcpy(_this->gl_config.driver_path, "libGL.so", 62 SDL_arraysize(_this->gl_config.driver_path)); 63 } 64 } 65 return true; 66} 67 68SDL_FunctionPointer HAIKU_GL_GetProcAddress(SDL_VideoDevice *_this, const char *proc) 69{ 70 if (_this->gl_config.dll_handle) { 71 void *location = NULL; 72 status_t err; 73 if ((err = 74 get_image_symbol((image_id) (addr_t) _this->gl_config.dll_handle, 75 proc, B_SYMBOL_TYPE_ANY, 76 &location)) == B_OK) { 77 return (SDL_FunctionPointer)location; 78 } else { 79 SDL_SetError("Couldn't find OpenGL symbol"); 80 return NULL; 81 } 82 } else { 83 SDL_SetError("OpenGL library not loaded"); 84 return NULL; 85 } 86} 87 88 89bool HAIKU_GL_SwapWindow(SDL_VideoDevice *_this, SDL_Window * window) 90{ 91 _ToBeWin(window)->SwapBuffers(); 92 return true; 93} 94 95bool HAIKU_GL_MakeCurrent(SDL_VideoDevice *_this, SDL_Window * window, SDL_GLContext context) 96{ 97 BGLView *glView = (BGLView *)context; 98 // printf("HAIKU_GL_MakeCurrent(%llx), win = %llx, thread = %d\n", (uint64)context, (uint64)window, find_thread(NULL)); 99 if (glView) { 100 if ((glView->Window() == NULL) || (!window) || (_ToBeWin(window)->GetGLView() != glView)) { 101 return SDL_SetError("MakeCurrent failed"); 102 } 103 } 104 _GetBeLooper()->SetCurrentContext(glView); 105 return true; 106} 107 108 109SDL_GLContext HAIKU_GL_CreateContext(SDL_VideoDevice *_this, SDL_Window * window) 110{ 111 /* FIXME: Not sure what flags should be included here; may want to have 112 most of them */ 113 SDL_BWin *bwin = _ToBeWin(window); 114 // printf("HAIKU_GL_CreateContext, win = %llx, thread = %d\n", (uint64)window, find_thread(NULL)); 115 if (bwin->GetGLView() != NULL) { 116 SDL_SetError("Context already creaded"); 117 return NULL; 118 } 119 Uint32 gl_flags = BGL_RGB; 120 if (_this->gl_config.alpha_size) { 121 gl_flags |= BGL_ALPHA; 122 } 123 if (_this->gl_config.depth_size) { 124 gl_flags |= BGL_DEPTH; 125 } 126 if (_this->gl_config.stencil_size) { 127 gl_flags |= BGL_STENCIL; 128 } 129 if (_this->gl_config.double_buffer) { 130 gl_flags |= BGL_DOUBLE; 131 } else { 132 gl_flags |= BGL_SINGLE; 133 } 134 if (_this->gl_config.accum_red_size || 135 _this->gl_config.accum_green_size || 136 _this->gl_config.accum_blue_size || 137 _this->gl_config.accum_alpha_size) { 138 gl_flags |= BGL_ACCUM; 139 } 140#if __GNUC__ > 3 141 if (_this->gl_config.share_with_current_context) { 142 gl_flags |= BGL_SHARE_CONTEXT; 143 } 144#endif 145 bwin->CreateGLView(gl_flags); 146 _GetBeLooper()->SetCurrentContext(bwin->GetGLView()); 147 return (SDL_GLContext)(bwin->GetGLView()); 148} 149 150bool HAIKU_GL_DestroyContext(SDL_VideoDevice *_this, SDL_GLContext context) 151{ 152 // printf("HAIKU_GL_DestroyContext(%llx), thread = %d\n", (uint64)context, find_thread(NULL)); 153 BGLView *glView = (BGLView *)context; 154 SDL_BWin *bwin = (SDL_BWin *)glView->Window(); 155 if (!bwin) { 156 delete glView; 157 } else { 158 bwin->RemoveGLView(); 159 } 160 return true; 161} 162 163 164bool HAIKU_GL_SetSwapInterval(SDL_VideoDevice *_this, int interval) 165{ 166 // TODO: Implement this, if necessary? 167 return SDL_Unsupported(); 168} 169 170bool HAIKU_GL_GetSwapInterval(SDL_VideoDevice *_this, int *interval) 171{ 172 return SDL_Unsupported(); 173} 174 175 176void HAIKU_GL_UnloadLibrary(SDL_VideoDevice *_this) 177{ 178 // TODO: Implement this, if necessary? 179} 180 181 182/* FIXME: This function is meant to clear the OpenGL context when the video 183 mode changes (see SDL_bmodes.cc), but it doesn't seem to help, and is not 184 currently in use. */ 185void HAIKU_GL_RebootContexts(SDL_VideoDevice *_this) 186{ 187 SDL_Window *window = _this->windows; 188 while (window) { 189 SDL_BWin *bwin = _ToBeWin(window); 190 if (bwin->GetGLView()) { 191 bwin->LockLooper(); 192 bwin->RemoveGLView(); 193 bwin->CreateGLView(bwin->GetGLType()); 194 bwin->UnlockLooper(); 195 } 196 window = window->next; 197 } 198} 199 200 201#ifdef __cplusplus 202} 203#endif 204 205#endif // SDL_VIDEO_DRIVER_HAIKU && SDL_VIDEO_OPENGL 206[FILE END](C) 2025 0x4248 (C) 2025 4248 Media and 4248 Systems, All part of 0x4248 See LICENCE files for more information. 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