static void mgaDDDrawBuffer(GLcontext *ctx, GLenum mode )
{
mgaContextPtr mmesa = MGA_CONTEXT(ctx);
FLUSH_BATCH( mmesa );
/*
* _DrawDestMask is easier to cope with than <mode>.
*/
switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
case BUFFER_BIT_FRONT_LEFT:
mmesa->setup.dstorg = mmesa->mgaScreen->frontOffset;
mmesa->dirty |= MGA_UPLOAD_CONTEXT;
mmesa->draw_buffer = MGA_FRONT;
mgaXMesaSetFrontClipRects( mmesa );
FALLBACK( ctx, MGA_FALLBACK_DRAW_BUFFER, GL_FALSE );
break;
case BUFFER_BIT_BACK_LEFT:
mmesa->setup.dstorg = mmesa->mgaScreen->backOffset;
mmesa->draw_buffer = MGA_BACK;
mmesa->dirty |= MGA_UPLOAD_CONTEXT;
mgaXMesaSetBackClipRects( mmesa );
FALLBACK( ctx, MGA_FALLBACK_DRAW_BUFFER, GL_FALSE );
break;
default:
/* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
FALLBACK( ctx, MGA_FALLBACK_DRAW_BUFFER, GL_TRUE );
return;
}
}
static void mgaDDDrawBuffer(GLcontext *ctx, GLenum mode )
{
mgaContextPtr mmesa = MGA_CONTEXT(ctx);
FLUSH_BATCH( mmesa );
/*
* _DrawDestMask is easier to cope with than <mode>.
*/
switch ( ctx->Color._DrawDestMask[0] ) {
case DD_FRONT_LEFT_BIT:
mmesa->setup.dstorg = mmesa->mgaScreen->frontOffset;
mmesa->dirty |= MGA_UPLOAD_CONTEXT;
mmesa->draw_buffer = MGA_FRONT;
mgaXMesaSetFrontClipRects( mmesa );
FALLBACK( ctx, MGA_FALLBACK_DRAW_BUFFER, GL_FALSE );
break;
case DD_BACK_LEFT_BIT:
mmesa->setup.dstorg = mmesa->mgaScreen->backOffset;
mmesa->draw_buffer = MGA_BACK;
mmesa->dirty |= MGA_UPLOAD_CONTEXT;
mgaXMesaSetBackClipRects( mmesa );
FALLBACK( ctx, MGA_FALLBACK_DRAW_BUFFER, GL_FALSE );
break;
default:
/* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
FALLBACK( ctx, MGA_FALLBACK_DRAW_BUFFER, GL_TRUE );
return;
}
/* We want to update the s/w rast state too so that r200SetBuffer()
* gets called.
*/
_swrast_DrawBuffer(ctx, mode);
}
void mgaUpdateRects( mgaContextPtr mmesa, GLuint buffers )
{
__DRIdrawablePrivate *driDrawable = mmesa->driDrawable;
drm_mga_sarea_t *sarea = mmesa->sarea;
DRI_VALIDATE_DRAWABLE_INFO(mmesa->driScreen, driDrawable);
mmesa->dirty_cliprects = 0;
if (mmesa->draw_buffer == MGA_FRONT)
mgaXMesaSetFrontClipRects( mmesa );
else
mgaXMesaSetBackClipRects( mmesa );
sarea->req_drawable = driDrawable->draw;
sarea->req_draw_buffer = mmesa->draw_buffer;
mgaUpdateClipping( mmesa->glCtx );
mgaCalcViewport( mmesa->glCtx );
mmesa->dirty |= MGA_UPLOAD_CLIPRECTS;
}