src/video/bwindow/SDL_bopengl.cc
author Nathan Heisey <nathanheisey@gmail.com>
Mon, 08 Aug 2011 17:00:38 +0000
changeset 5934 01531d8d1e01
parent 5931 edf9a8e68b34
child 5935 d52ded852194
permissions -rw-r--r--
Some video fixes
nathanheisey@5918
     1
/*
nathanheisey@5918
     2
  Simple DirectMedia Layer
nathanheisey@5918
     3
  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
nathanheisey@5918
     4
nathanheisey@5918
     5
  This software is provided 'as-is', without any express or implied
nathanheisey@5918
     6
  warranty.  In no event will the authors be held liable for any damages
nathanheisey@5918
     7
  arising from the use of this software.
nathanheisey@5918
     8
nathanheisey@5918
     9
  Permission is granted to anyone to use this software for any purpose,
nathanheisey@5918
    10
  including commercial applications, and to alter it and redistribute it
nathanheisey@5918
    11
  freely, subject to the following restrictions:
nathanheisey@5918
    12
nathanheisey@5918
    13
  1. The origin of this software must not be misrepresented; you must not
nathanheisey@5918
    14
     claim that you wrote the original software. If you use this software
nathanheisey@5918
    15
     in a product, an acknowledgment in the product documentation would be
nathanheisey@5918
    16
     appreciated but is not required.
nathanheisey@5918
    17
  2. Altered source versions must be plainly marked as such, and must not be
nathanheisey@5918
    18
     misrepresented as being the original software.
nathanheisey@5918
    19
  3. This notice may not be removed or altered from any source distribution.
nathanheisey@5918
    20
*/
nathanheisey@5918
    21
nathanheisey@5918
    22
#include "SDL_bopengl.h"
nathanheisey@5918
    23
nathanheisey@5931
    24
#include <unistd.h>
nathanheisey@5931
    25
#include <KernelKit.h>
nathanheisey@5931
    26
#include <OpenGLKit.h>
nathanheisey@5931
    27
#include "SDL_BWin.h"
nathanheisey@5931
    28
#include "../../main/beos/SDL_BApp.h"
nathanheisey@5931
    29
nathanheisey@5919
    30
#ifdef __cplusplus
nathanheisey@5919
    31
extern "C" {
nathanheisey@5919
    32
#endif
nathanheisey@5918
    33
nathanheisey@5931
    34
static inline SDL_BWin *_ToBeWin(SDL_Window *window) {
nathanheisey@5931
    35
	return ((SDL_BWin*)(window->driverdata));
nathanheisey@5931
    36
}
nathanheisey@5931
    37
nathanheisey@5931
    38
static inline SDL_BApp *_GetBeApp() {
nathanheisey@5931
    39
	return ((SDL_BApp*)be_app);
nathanheisey@5931
    40
}
nathanheisey@5931
    41
nathanheisey@5918
    42
/* Passing a NULL path means load pointers from the application */
nathanheisey@5918
    43
int BE_GL_LoadLibrary(_THIS, const char *path)
nathanheisey@5918
    44
{
nathanheisey@5918
    45
	if (path == NULL) {
nathanheisey@5918
    46
		if (_this->gl_config.dll_handle == NULL) {
nathanheisey@5918
    47
			image_info info;
nathanheisey@5918
    48
			int32 cookie = 0;
nathanheisey@5918
    49
			while (get_next_image_info(0, &cookie, &info) == B_OK) {
nathanheisey@5918
    50
				void *location = NULL;
nathanheisey@5918
    51
				if (get_image_symbol
nathanheisey@5918
    52
				((image_id) cookie, "glBegin",
nathanheisey@5918
    53
				B_SYMBOL_TYPE_ANY, &location) == B_OK) {
nathanheisey@5918
    54
					_this->gl_config.dll_handle = (void *) cookie;
nathanheisey@5918
    55
					_this->gl_config.driver_loaded = 1;
nathanheisey@5918
    56
					SDL_strlcpy(_this->gl_config.driver_path,
nathanheisey@5918
    57
					"libGL.so",
nathanheisey@5918
    58
					SDL_arraysize(_this->
nathanheisey@5918
    59
					gl_config.driver_path));
nathanheisey@5918
    60
				}
nathanheisey@5918
    61
			}
nathanheisey@5918
    62
		}
nathanheisey@5918
    63
	} else {
nathanheisey@5918
    64
        /*
nathanheisey@5918
    65
           FIXME None of BeOS libGL.so implementations have exported functions 
nathanheisey@5918
    66
           to load BGLView, which should be reloaded from new lib.
nathanheisey@5918
    67
           So for now just "load" linked libGL.so :(
nathanheisey@5918
    68
        */
nathanheisey@5918
    69
        if (_this->gl_config.dll_handle == NULL) {
nathanheisey@5918
    70
        	return BE_GL_LoadLibrary(_this, NULL);
nathanheisey@5918
    71
        }
nathanheisey@5918
    72
nathanheisey@5918
    73
            /* Unload old first */
nathanheisey@5918
    74
            /*if (_this->gl_config.dll_handle != NULL) { */
nathanheisey@5918
    75
            /* Do not try to unload application itself (if LoadLibrary was called before with NULL ;) */
nathanheisey@5918
    76
            /*      image_info info;
nathanheisey@5918
    77
               if (get_image_info((image_id)_this->gl_config.dll_handle, &info) == B_OK) {
nathanheisey@5918
    78
               if (info.type != B_APP_IMAGE) {
nathanheisey@5918
    79
               unload_add_on((image_id)_this->gl_config.dll_handle);
nathanheisey@5918
    80
               }
nathanheisey@5918
    81
               }
nathanheisey@5918
    82
nathanheisey@5918
    83
               }
nathanheisey@5918
    84
nathanheisey@5918
    85
               if ((_this->gl_config.dll_handle = (void*)load_add_on(path)) != (void*)B_ERROR) {
nathanheisey@5918
    86
               _this->gl_config.driver_loaded = 1;
nathanheisey@5918
    87
               SDL_strlcpy(_this->gl_config.driver_path, path, SDL_arraysize(_this->gl_config.driver_path));
nathanheisey@5918
    88
               } */
nathanheisey@5918
    89
	}
nathanheisey@5918
    90
	
nathanheisey@5918
    91
	if (_this->gl_config.dll_handle != NULL) {
nathanheisey@5918
    92
		return 0;
nathanheisey@5918
    93
	} else {
nathanheisey@5918
    94
		_this->gl_config.dll_handle = NULL;
nathanheisey@5918
    95
		_this->gl_config.driver_loaded = 0;
nathanheisey@5918
    96
		*_this->gl_config.driver_path = '\0';
nathanheisey@5918
    97
		return -1;
nathanheisey@5918
    98
	}
nathanheisey@5918
    99
}
nathanheisey@5918
   100
nathanheisey@5918
   101
void *BE_GL_GetProcAddress(_THIS, const char *proc)
nathanheisey@5918
   102
{
nathanheisey@5918
   103
	if (_this->gl_config.dll_handle != NULL) {
nathanheisey@5918
   104
		void *location = NULL;
nathanheisey@5918
   105
		status_t err;
nathanheisey@5918
   106
		if ((err =
nathanheisey@5918
   107
			get_image_symbol((image_id) _this->gl_config.dll_handle,
nathanheisey@5918
   108
                              proc, B_SYMBOL_TYPE_ANY,
nathanheisey@5918
   109
                              &location)) == B_OK) {
nathanheisey@5918
   110
            return location;
nathanheisey@5918
   111
        } else {
nathanheisey@5918
   112
                SDL_SetError("Couldn't find OpenGL symbol");
nathanheisey@5918
   113
                return NULL;
nathanheisey@5918
   114
        }
nathanheisey@5918
   115
	} else {
nathanheisey@5918
   116
		SDL_SetError("OpenGL library not loaded");
nathanheisey@5918
   117
		return NULL;
nathanheisey@5918
   118
	}
nathanheisey@5918
   119
}
nathanheisey@5918
   120
nathanheisey@5918
   121
nathanheisey@5934
   122
nathanheisey@5934
   123
nathanheisey@5934
   124
void BE_GL_SwapWindow(_THIS, SDL_Window * window) {
nathanheisey@5934
   125
    _ToBeWin(window)->SwapBuffers();
nathanheisey@5934
   126
}
nathanheisey@5934
   127
nathanheisey@5934
   128
int BE_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context) {
nathanheisey@5934
   129
	_GetBeApp()->SetCurrentContext(((SDL_BWin*)context)->GetGLView());
nathanheisey@5934
   130
	return 0;
nathanheisey@5934
   131
}
nathanheisey@5934
   132
nathanheisey@5934
   133
nathanheisey@5934
   134
SDL_GLContext BE_GL_CreateContext(_THIS, SDL_Window * window) {
nathanheisey@5934
   135
	/* FIXME: Not sure what flags should be included here; may want to have
nathanheisey@5934
   136
	   most of them */
nathanheisey@5934
   137
	SDL_BWin *bwin = _ToBeWin(window);
nathanheisey@5934
   138
	bwin->CreateGLView(BGL_RGB | BGL_DOUBLE);
nathanheisey@5934
   139
	return (SDL_GLContext)(bwin);
nathanheisey@5934
   140
}
nathanheisey@5934
   141
nathanheisey@5934
   142
void BE_GL_DeleteContext(_THIS, SDL_GLContext context) {
nathanheisey@5934
   143
	/* Currently, automatically unlocks the view */
nathanheisey@5934
   144
	((SDL_BWin*)context)->RemoveGLView();
nathanheisey@5934
   145
}
nathanheisey@5934
   146
nathanheisey@5934
   147
nathanheisey@5934
   148
int BE_GL_SetSwapInterval(_THIS, int interval) {
nathanheisey@5934
   149
	printf(__FILE__": %d- swap interval set\n", __LINE__);
nathanheisey@5934
   150
	return 0;
nathanheisey@5934
   151
}
nathanheisey@5934
   152
nathanheisey@5934
   153
int BE_GL_GetSwapInterval(_THIS) {
nathanheisey@5934
   154
	printf(__FILE__": %d- swap interval requested\n", __LINE__);
nathanheisey@5934
   155
	return 0;
nathanheisey@5934
   156
}
nathanheisey@5934
   157
nathanheisey@5934
   158
nathanheisey@5934
   159
void BE_GL_UnloadLibrary(_THIS) {
nathanheisey@5934
   160
	printf(__FILE__": %d- Library unloaded\n", __LINE__);
nathanheisey@5934
   161
}
nathanheisey@5934
   162
nathanheisey@5934
   163
nathanheisey@5934
   164
nathanheisey@5934
   165
nathanheisey@5934
   166
nathanheisey@5934
   167
nathanheisey@5918
   168
#if 0 /* Functions from 1.2 that do not appear to be used in 1.3 */
nathanheisey@5918
   169
nathanheisey@5918
   170
    int BE_GL_GetAttribute(_THIS, SDL_GLattr attrib, int *value)
nathanheisey@5918
   171
    {
nathanheisey@5918
   172
        /*
nathanheisey@5918
   173
           FIXME? Right now BE_GL_GetAttribute shouldn't be called between glBegin() and glEnd() - it doesn't use "cached" values
nathanheisey@5918
   174
         */
nathanheisey@5918
   175
        switch (attrib) {
nathanheisey@5918
   176
        case SDL_GL_RED_SIZE:
nathanheisey@5918
   177
            glGetIntegerv(GL_RED_BITS, (GLint *) value);
nathanheisey@5918
   178
            break;
nathanheisey@5918
   179
        case SDL_GL_GREEN_SIZE:
nathanheisey@5918
   180
            glGetIntegerv(GL_GREEN_BITS, (GLint *) value);
nathanheisey@5918
   181
            break;
nathanheisey@5918
   182
        case SDL_GL_BLUE_SIZE:
nathanheisey@5918
   183
            glGetIntegerv(GL_BLUE_BITS, (GLint *) value);
nathanheisey@5918
   184
            break;
nathanheisey@5918
   185
        case SDL_GL_ALPHA_SIZE:
nathanheisey@5918
   186
            glGetIntegerv(GL_ALPHA_BITS, (GLint *) value);
nathanheisey@5918
   187
            break;
nathanheisey@5918
   188
        case SDL_GL_DOUBLEBUFFER:
nathanheisey@5918
   189
            glGetBooleanv(GL_DOUBLEBUFFER, (GLboolean *) value);
nathanheisey@5918
   190
            break;
nathanheisey@5918
   191
        case SDL_GL_BUFFER_SIZE:
nathanheisey@5918
   192
            int v;
nathanheisey@5918
   193
            glGetIntegerv(GL_RED_BITS, (GLint *) & v);
nathanheisey@5918
   194
            *value = v;
nathanheisey@5918
   195
            glGetIntegerv(GL_GREEN_BITS, (GLint *) & v);
nathanheisey@5918
   196
            *value += v;
nathanheisey@5918
   197
            glGetIntegerv(GL_BLUE_BITS, (GLint *) & v);
nathanheisey@5918
   198
            *value += v;
nathanheisey@5918
   199
            glGetIntegerv(GL_ALPHA_BITS, (GLint *) & v);
nathanheisey@5918
   200
            *value += v;
nathanheisey@5918
   201
            break;
nathanheisey@5918
   202
        case SDL_GL_DEPTH_SIZE:
nathanheisey@5918
   203
            glGetIntegerv(GL_DEPTH_BITS, (GLint *) value);      /* Mesa creates 16 only? r5 always 32 */
nathanheisey@5918
   204
            break;
nathanheisey@5918
   205
        case SDL_GL_STENCIL_SIZE:
nathanheisey@5918
   206
            glGetIntegerv(GL_STENCIL_BITS, (GLint *) value);
nathanheisey@5918
   207
            break;
nathanheisey@5918
   208
        case SDL_GL_ACCUM_RED_SIZE:
nathanheisey@5918
   209
            glGetIntegerv(GL_ACCUM_RED_BITS, (GLint *) value);
nathanheisey@5918
   210
            break;
nathanheisey@5918
   211
        case SDL_GL_ACCUM_GREEN_SIZE:
nathanheisey@5918
   212
            glGetIntegerv(GL_ACCUM_GREEN_BITS, (GLint *) value);
nathanheisey@5918
   213
            break;
nathanheisey@5918
   214
        case SDL_GL_ACCUM_BLUE_SIZE:
nathanheisey@5918
   215
            glGetIntegerv(GL_ACCUM_BLUE_BITS, (GLint *) value);
nathanheisey@5918
   216
            break;
nathanheisey@5918
   217
        case SDL_GL_ACCUM_ALPHA_SIZE:
nathanheisey@5918
   218
            glGetIntegerv(GL_ACCUM_ALPHA_BITS, (GLint *) value);
nathanheisey@5918
   219
            break;
nathanheisey@5918
   220
        case SDL_GL_STEREO:
nathanheisey@5918
   221
        case SDL_GL_MULTISAMPLEBUFFERS:
nathanheisey@5918
   222
        case SDL_GL_MULTISAMPLESAMPLES:
nathanheisey@5918
   223
        default:
nathanheisey@5918
   224
            *value = 0;
nathanheisey@5918
   225
            return (-1);
nathanheisey@5918
   226
        }
nathanheisey@5918
   227
        return 0;
nathanheisey@5918
   228
    }
nathanheisey@5918
   229
nathanheisey@5931
   230
#endif
nathanheisey@5931
   231
nathanheisey@5931
   232
nathanheisey@5931
   233
nathanheisey@5931
   234
nathanheisey@5931
   235
nathanheisey@5931
   236
nathanheisey@5931
   237
nathanheisey@5919
   238
nathanheisey@5919
   239
#ifdef __cplusplus
nathanheisey@5919
   240
}
nathanheisey@5919
   241
#endif