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#include "brw_context.h"
#include "brw_pipe_rast.h"
#if 0
static GLboolean need_swtnl( struct brw_context *brw )
{
const struct pipe_rasterizer_state *rast = &brw->curr.rast->templ;
/* If we don't require strict OpenGL conformance, never
* use fallbacks. If we're forcing fallbacks, always
* use fallfacks.
*/
if (brw->flags.no_swtnl)
return FALSE;
if (brw->flags.force_swtnl)
return TRUE;
/* Exceeding hw limits on number of VS inputs?
*/
if (brw->curr.num_vertex_elements == 0 ||
brw->curr.num_vertex_elements >= BRW_VEP_MAX) {
return TRUE;
}
/* Position array with zero stride?
*
* XXX: position isn't always at zero...
* XXX: eliminate zero-stride arrays
*/
{
int ve0_vb = brw->curr.vertex_element[0].vertex_buffer_index;
if (brw->curr.vertex_buffer[ve0_vb].stride == 0)
return TRUE;
}
/* XXX: short-circuit
*/
return FALSE;
if (brw->reduced_primitive == PIPE_PRIM_TRIANGLES) {
if (rast->poly_smooth)
return TRUE;
}
if (brw->reduced_primitive == PIPE_PRIM_LINES ||
(brw->reduced_primitive == PIPE_PRIM_TRIANGLES &&
(rast->fill_cw == PIPE_POLYGON_MODE_LINE ||
rast->fill_ccw == PIPE_POLYGON_MODE_LINE)))
{
/* BRW hardware will do AA lines, but they are non-conformant it
* seems. TBD whether we keep this fallback:
*/
if (rast->line_smooth)
return TRUE;
/* XXX: was a fallback in mesa (gs doesn't get enough
* information to know when to reset stipple counter), but there
* must be a way around it.
*/
if (rast->line_stipple_enable &&
(brw->reduced_primitive == PIPE_PRIM_TRIANGLES ||
brw->primitive == PIPE_PRIM_LINE_LOOP ||
brw->primitive == PIPE_PRIM_LINE_STRIP))
return TRUE;
}
if (brw->reduced_primitive == PIPE_PRIM_POINTS ||
(brw->reduced_primitive == PIPE_PRIM_TRIANGLES &&
(rast->fill_cw == PIPE_POLYGON_MODE_POINT ||
rast->fill_ccw == PIPE_POLYGON_MODE_POINT)))
{
if (rast->point_smooth)
return TRUE;
}
/* BRW hardware doesn't handle CLAMP texturing correctly;
* brw_wm_sampler_state:translate_wrap_mode() treats CLAMP
* as CLAMP_TO_EDGE instead. If we're using CLAMP, and
* we want strict conformance, force the fallback.
*
* XXX: need a workaround for this.
*/
/* Nothing stopping us from the fast path now */
return FALSE;
}
#endif
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