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/**************************************************************************
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* Copyright 2007 Tungsten Graphics, Inc., Bismarck, ND., USA
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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**************************************************************************/
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#include "pipe/p_compiler.h"
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#include "util/u_debug.h"
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#include "target-helpers/wrap_screen.h"
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#include "state_tracker/xlib_sw_winsys.h"
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#include "xm_public.h"
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#include "state_tracker/st_api.h"
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#include "state_tracker/st_gl_api.h"
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/* piggy back on this libGL for OpenGL support in EGL */
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st_api_create_OpenGL()
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return st_gl_api_create();
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/* Helper function to choose and instantiate one of the software rasterizers:
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* cell, llvmpipe, softpipe.
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* This function could be shared, but currently causes headaches for
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* the build systems, particularly scons if we try. Long term, want
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* to avoid having global #defines for things like GALLIUM_LLVMPIPE,
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* GALLIUM_CELL, etc. Scons already eliminates those #defines, so
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* things that are painful for it now are likely to be painful for
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* other build systems in the future.
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* Copies (full or partial):
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#ifdef GALLIUM_SOFTPIPE
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#include "softpipe/sp_public.h"
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#ifdef GALLIUM_LLVMPIPE
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#include "llvmpipe/lp_public.h"
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#include "cell/ppu/cell_public.h"
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#ifdef GALLIUM_GALAHAD
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#include "galahad/glhd_public.h"
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static struct pipe_screen *
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swrast_create_screen(struct sw_winsys *winsys)
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const char *default_driver;
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struct pipe_screen *screen = NULL;
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#if defined(GALLIUM_CELL)
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default_driver = "cell";
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#elif defined(GALLIUM_LLVMPIPE)
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default_driver = "llvmpipe";
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#elif defined(GALLIUM_SOFTPIPE)
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default_driver = "softpipe";
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driver = debug_get_option("GALLIUM_DRIVER", default_driver);
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#if defined(GALLIUM_CELL)
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if (screen == NULL && strcmp(driver, "cell") == 0)
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screen = cell_create_screen( winsys );
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#if defined(GALLIUM_LLVMPIPE)
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if (screen == NULL && strcmp(driver, "llvmpipe") == 0)
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screen = llvmpipe_create_screen( winsys );
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#if defined(GALLIUM_SOFTPIPE)
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screen = softpipe_create_screen( winsys );
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#if defined(GALLIUM_GALAHAD)
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struct pipe_screen *galahad_screen = galahad_screen_create(screen);
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screen = galahad_screen;
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/* Helper function to build a subset of a driver stack consisting of
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* one of the software rasterizers (cell, llvmpipe, softpipe) and the
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static struct pipe_screen *
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swrast_xlib_create_screen( Display *display )
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struct sw_winsys *winsys;
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struct pipe_screen *screen = NULL;
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/* Create the underlying winsys, which performs presents to Xlib
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winsys = xlib_create_sw_winsys( display );
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/* Create a software rasterizer on top of that winsys:
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screen = swrast_create_screen( winsys );
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/* Inject any wrapping layers we want to here:
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return gallium_wrap_screen( screen );
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winsys->destroy( winsys );
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static struct xm_driver xlib_driver =
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.create_pipe_screen = swrast_xlib_create_screen,
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.create_st_api = st_gl_api_create,
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/* Build the rendering stack.
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static void _init( void ) __attribute__((constructor));
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static void _init( void )
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/* Initialize the xlib libgl code, pass in the winsys:
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xmesa_set_driver( &xlib_driver );
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/***********************************************************************
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* Butt-ugly hack to convince the linker not to throw away public GL
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* symbols (they are all referenced from getprocaddress, I guess).
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extern void (*linker_foo(const unsigned char *procName))();
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extern void (*glXGetProcAddress(const unsigned char *procName))();
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extern void (*linker_foo(const unsigned char *procName))()
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return glXGetProcAddress(procName);
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* When GLX_INDIRECT_RENDERING is defined, some symbols are missing in
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* libglapi.a. We need to define them here.
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#ifdef GLX_INDIRECT_RENDERING
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#define GL_GLEXT_PROTOTYPES
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#include "glapi/glapi.h"
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#include "glapi/glapitable.h"
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#include "glapi/glapidispatch.h"
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#if defined(USE_MGL_NAMESPACE)
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#define NAME(func) mgl##func
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#define NAME(func) gl##func
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#define DISPATCH(FUNC, ARGS, MESSAGE) \
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CALL_ ## FUNC(GET_DISPATCH(), ARGS);
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#define RETURN_DISPATCH(FUNC, ARGS, MESSAGE) \
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return CALL_ ## FUNC(GET_DISPATCH(), ARGS);
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/* skip normal ones */
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#define _GLAPI_SKIP_NORMAL_ENTRY_POINTS
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#include "glapi/glapitemp.h"
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#endif /* GLX_INDIRECT_RENDERING */