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https://gitlab.freedesktop.org/mesa/mesa.git
synced 2026-05-08 09:08:10 +02:00
Enable use of new DRI interface in MGA driver.
This commit is contained in:
Ian Romanick
parent
193d211a19
commit
0370d0829b
1 changed files with 175 additions and 0 deletions
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@ -77,12 +77,137 @@ DRI_CONF_BEGIN
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DRI_CONF_END;
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static const GLuint __driNConfigOptions = 3;
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#ifdef USE_NEW_INTERFACE
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static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
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#endif /* USE_NEW_INTERFACE */
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#ifndef MGA_DEBUG
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int MGA_DEBUG = 0;
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#endif
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static int getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo );
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#ifdef USE_NEW_INTERFACE
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static __GLcontextModes * fill_in_modes( __GLcontextModes * modes,
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unsigned pixel_bits,
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unsigned depth_bits,
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unsigned stencil_bits,
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const GLenum * db_modes,
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unsigned num_db_modes,
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int visType )
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{
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static const uint8_t bits[2][4] = {
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{ 5, 6, 5, 0 },
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{ 8, 8, 8, 0 }
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};
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static const uint32_t masks[2][4] = {
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{ 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 },
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{ 0x00FF0000, 0x0000FF00, 0x000000FF, 0x00000000 }
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};
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unsigned i;
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unsigned j;
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const unsigned index = ((pixel_bits + 15) / 16) - 1;
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for ( i = 0 ; i < num_db_modes ; i++ ) {
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for ( j = 0 ; j < 2 ; j++ ) {
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modes->redBits = bits[index][0];
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modes->greenBits = bits[index][1];
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modes->blueBits = bits[index][2];
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modes->alphaBits = bits[index][3];
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modes->redMask = masks[index][0];
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modes->greenMask = masks[index][1];
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modes->blueMask = masks[index][2];
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modes->alphaMask = masks[index][3];
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modes->rgbBits = modes->redBits + modes->greenBits
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+ modes->blueBits;
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modes->accumRedBits = 16 * j;
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modes->accumGreenBits = 16 * j;
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modes->accumBlueBits = 16 * j;
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modes->accumAlphaBits = 0;
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modes->visualRating = (j == 0) ? GLX_NONE : GLX_SLOW_CONFIG;
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modes->stencilBits = stencil_bits;
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modes->depthBits = depth_bits;
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modes->visualType = visType;
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modes->renderType = GLX_RGBA_BIT;
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modes->drawableType = GLX_WINDOW_BIT;
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modes->rgbMode = GL_TRUE;
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if ( db_modes[i] == GLX_NONE ) {
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modes->doubleBufferMode = GL_FALSE;
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}
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else {
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modes->doubleBufferMode = GL_TRUE;
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modes->swapMethod = db_modes[i];
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}
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modes = modes->next;
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}
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}
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return modes;
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}
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#endif /* USE_NEW_INTERFACE */
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#ifdef USE_NEW_INTERFACE
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static __GLcontextModes *
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mgaFillInModes( unsigned pixel_bits, unsigned depth_bits,
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unsigned stencil_bits, GLboolean have_back_buffer )
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{
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__GLcontextModes * modes;
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__GLcontextModes * m;
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unsigned num_modes;
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unsigned depth_buffer_factor;
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unsigned back_buffer_factor;
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unsigned i;
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/* GLX_SWAP_COPY_OML is only supported because the MGA driver doesn't
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* support pageflipping at all.
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*/
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static const GLenum back_buffer_modes[] = {
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GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
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};
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int depth_buffer_modes[2][2] = {
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{ 0, 0 },
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{ 0, 0 }
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};
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depth_buffer_modes[1][0] = depth_bits;
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depth_buffer_modes[1][1] = stencil_bits;
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depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 2 : 1;
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back_buffer_factor = (have_back_buffer) ? 2 : 1;
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num_modes = depth_buffer_factor * back_buffer_factor * 4;
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modes = (*create_context_modes)( num_modes, sizeof( __GLcontextModes ) );
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m = modes;
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for ( i = 0 ; i < depth_buffer_factor ; i++ ) {
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m = fill_in_modes( m, pixel_bits,
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depth_buffer_modes[i][0], depth_buffer_modes[i][1],
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back_buffer_modes, back_buffer_factor,
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GLX_TRUE_COLOR );
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}
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for ( i = 0 ; i < depth_buffer_factor ; i++ ) {
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m = fill_in_modes( m, pixel_bits,
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depth_buffer_modes[i][0], depth_buffer_modes[i][1],
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back_buffer_modes, back_buffer_factor,
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GLX_DIRECT_COLOR );
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}
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return modes;
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}
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#endif /* USE_NEW_INTERFACE */
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static GLboolean
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mgaInitDriver(__DRIscreenPrivate *sPriv)
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{
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@ -136,6 +261,11 @@ mgaInitDriver(__DRIscreenPrivate *sPriv)
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(*glx_enable_extension)( psc, "GLX_SGI_make_current_read" );
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(*glx_enable_extension)( psc, "GLX_MESA_swap_frame_usage" );
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if ( driCompareGLXAPIVersion( 20030915 ) >= 0 ) {
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(*glx_enable_extension)( psc, "GLX_SGIX_fbconfig" );
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(*glx_enable_extension)( psc, "GLX_OML_swap_method" );
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}
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}
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}
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#endif
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@ -792,6 +922,51 @@ void *__driCreateScreen(struct DRIDriverRec *driver,
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#endif
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/**
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* This is the bootstrap function for the driver. libGL supplies all of the
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* requisite information about the system, and the driver initializes itself.
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* This routine also fills in the linked list pointed to by \c driver_modes
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* with the \c __GLcontextModes that the driver can support for windows or
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* pbuffers.
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*
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* \return A pointer to a \c __DRIscreenPrivate on success, or \c NULL on
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* failure.
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*/
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#ifdef USE_NEW_INTERFACE
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void * __driCreateNewScreen( Display *dpy, int scrn, __DRIscreen *psc,
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const __GLcontextModes * modes,
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const __DRIversion * ddx_version,
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const __DRIversion * dri_version,
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const __DRIversion * drm_version,
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const __DRIframebuffer * frame_buffer,
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drmAddress pSAREA, int fd,
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int internal_api_version,
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__GLcontextModes ** driver_modes )
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{
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__DRIscreenPrivate *psp;
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psp = __driUtilCreateNewScreen(dpy, scrn, psc, NULL,
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ddx_version, dri_version, drm_version,
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frame_buffer, pSAREA, fd,
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internal_api_version, &mgaAPI);
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create_context_modes =
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(PFNGLXCREATECONTEXTMODES) glXGetProcAddress( (const GLubyte *) "__glXCreateContextModes" );
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if ( create_context_modes != NULL ) {
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MGADRIPtr dri_priv = (MGADRIPtr) psp->pDevPriv;
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*driver_modes = mgaFillInModes( dri_priv->cpp * 8,
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(dri_priv->cpp == 2) ? 16 : 24,
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(dri_priv->cpp == 2) ? 0 : 8,
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(dri_priv->backOffset != dri_priv->depthOffset) );
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}
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return (void *) psp;
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}
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#endif /* USE_NEW_INTERFACE */
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/**
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* Get information about previous buffer swaps.
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*/
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