diff options
| -rw-r--r-- | src/mesa/drivers/dri/mga/mga_xmesa.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/mga/mga_xmesa.c b/src/mesa/drivers/dri/mga/mga_xmesa.c index 169615d0c0..5e7d8cbbb1 100644 --- a/src/mesa/drivers/dri/mga/mga_xmesa.c +++ b/src/mesa/drivers/dri/mga/mga_xmesa.c @@ -77,12 +77,137 @@ DRI_CONF_BEGIN DRI_CONF_END; static const GLuint __driNConfigOptions = 3; +#ifdef USE_NEW_INTERFACE +static PFNGLXCREATECONTEXTMODES create_context_modes = NULL; +#endif /* USE_NEW_INTERFACE */ + #ifndef MGA_DEBUG int MGA_DEBUG = 0; #endif static int getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo ); +#ifdef USE_NEW_INTERFACE +static __GLcontextModes * fill_in_modes( __GLcontextModes * modes, + unsigned pixel_bits, + unsigned depth_bits, + unsigned stencil_bits, + const GLenum * db_modes, + unsigned num_db_modes, + int visType ) +{ + static const uint8_t bits[2][4] = { + { 5, 6, 5, 0 }, + { 8, 8, 8, 0 } + }; + + static const uint32_t masks[2][4] = { + { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, + { 0x00FF0000, 0x0000FF00, 0x000000FF, 0x00000000 } + }; + + unsigned i; + unsigned j; + const unsigned index = ((pixel_bits + 15) / 16) - 1; + + for ( i = 0 ; i < num_db_modes ; i++ ) { + for ( j = 0 ; j < 2 ; j++ ) { + + modes->redBits = bits[index][0]; + modes->greenBits = bits[index][1]; + modes->blueBits = bits[index][2]; + modes->alphaBits = bits[index][3]; + modes->redMask = masks[index][0]; + modes->greenMask = masks[index][1]; + modes->blueMask = masks[index][2]; + modes->alphaMask = masks[index][3]; + modes->rgbBits = modes->redBits + modes->greenBits + + modes->blueBits; + + modes->accumRedBits = 16 * j; + modes->accumGreenBits = 16 * j; + modes->accumBlueBits = 16 * j; + modes->accumAlphaBits = 0; + modes->visualRating = (j == 0) ? GLX_NONE : GLX_SLOW_CONFIG; + + modes->stencilBits = stencil_bits; + modes->depthBits = depth_bits; + + modes->visualType = visType; + modes->renderType = GLX_RGBA_BIT; + modes->drawableType = GLX_WINDOW_BIT; + modes->rgbMode = GL_TRUE; + + if ( db_modes[i] == GLX_NONE ) { + modes->doubleBufferMode = GL_FALSE; + } + else { + modes->doubleBufferMode = GL_TRUE; + modes->swapMethod = db_modes[i]; + } + + modes = modes->next; + } + } + + return modes; +} +#endif /* USE_NEW_INTERFACE */ + + +#ifdef USE_NEW_INTERFACE +static __GLcontextModes * +mgaFillInModes( unsigned pixel_bits, unsigned depth_bits, + unsigned stencil_bits, GLboolean have_back_buffer ) +{ + __GLcontextModes * modes; + __GLcontextModes * m; + unsigned num_modes; + unsigned depth_buffer_factor; + unsigned back_buffer_factor; + unsigned i; + + /* GLX_SWAP_COPY_OML is only supported because the MGA driver doesn't + * support pageflipping at all. + */ + static const GLenum back_buffer_modes[] = { + GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML + }; + + int depth_buffer_modes[2][2] = { + { 0, 0 }, + { 0, 0 } + }; + + depth_buffer_modes[1][0] = depth_bits; + depth_buffer_modes[1][1] = stencil_bits; + + depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 2 : 1; + back_buffer_factor = (have_back_buffer) ? 2 : 1; + + num_modes = depth_buffer_factor * back_buffer_factor * 4; + + modes = (*create_context_modes)( num_modes, sizeof( __GLcontextModes ) ); + m = modes; + for ( i = 0 ; i < depth_buffer_factor ; i++ ) { + m = fill_in_modes( m, pixel_bits, + depth_buffer_modes[i][0], depth_buffer_modes[i][1], + back_buffer_modes, back_buffer_factor, + GLX_TRUE_COLOR ); + } + + for ( i = 0 ; i < depth_buffer_factor ; i++ ) { + m = fill_in_modes( m, pixel_bits, + depth_buffer_modes[i][0], depth_buffer_modes[i][1], + back_buffer_modes, back_buffer_factor, + GLX_DIRECT_COLOR ); + } + + return modes; +} +#endif /* USE_NEW_INTERFACE */ + + static GLboolean mgaInitDriver(__DRIscreenPrivate *sPriv) { @@ -136,6 +261,11 @@ mgaInitDriver(__DRIscreenPrivate *sPriv) (*glx_enable_extension)( psc, "GLX_SGI_make_current_read" ); (*glx_enable_extension)( psc, "GLX_MESA_swap_frame_usage" ); + + if ( driCompareGLXAPIVersion( 20030915 ) >= 0 ) { + (*glx_enable_extension)( psc, "GLX_SGIX_fbconfig" ); + (*glx_enable_extension)( psc, "GLX_OML_swap_method" ); + } } } #endif @@ -793,6 +923,51 @@ void *__driCreateScreen(struct DRIDriverRec *driver, /** + * This is the bootstrap function for the driver. libGL supplies all of the + * requisite information about the system, and the driver initializes itself. + * This routine also fills in the linked list pointed to by \c driver_modes + * with the \c __GLcontextModes that the driver can support for windows or + * pbuffers. + * + * \return A pointer to a \c __DRIscreenPrivate on success, or \c NULL on + * failure. + */ +#ifdef USE_NEW_INTERFACE +void * __driCreateNewScreen( Display *dpy, int scrn, __DRIscreen *psc, + const __GLcontextModes * modes, + const __DRIversion * ddx_version, + const __DRIversion * dri_version, + const __DRIversion * drm_version, + const __DRIframebuffer * frame_buffer, + drmAddress pSAREA, int fd, + int internal_api_version, + __GLcontextModes ** driver_modes ) + +{ + __DRIscreenPrivate *psp; + + psp = __driUtilCreateNewScreen(dpy, scrn, psc, NULL, + ddx_version, dri_version, drm_version, + frame_buffer, pSAREA, fd, + internal_api_version, &mgaAPI); + + + create_context_modes = + (PFNGLXCREATECONTEXTMODES) glXGetProcAddress( (const GLubyte *) "__glXCreateContextModes" ); + if ( create_context_modes != NULL ) { + MGADRIPtr dri_priv = (MGADRIPtr) psp->pDevPriv; + *driver_modes = mgaFillInModes( dri_priv->cpp * 8, + (dri_priv->cpp == 2) ? 16 : 24, + (dri_priv->cpp == 2) ? 0 : 8, + (dri_priv->backOffset != dri_priv->depthOffset) ); + } + + return (void *) psp; +} +#endif /* USE_NEW_INTERFACE */ + + +/** * Get information about previous buffer swaps. */ static int |