static void mgaDmaPrimitive( GLcontext *ctx, GLenum prim )
{
mgaContextPtr mmesa = MGA_CONTEXT(ctx);
GLuint hwprim;
switch (prim) {
case GL_TRIANGLES:
hwprim = MGA_WA_TRIANGLES;
break;
case GL_TRIANGLE_STRIP:
if (mmesa->vertex_size == 8)
hwprim = MGA_WA_TRISTRIP_T0;
else
hwprim = MGA_WA_TRISTRIP_T0T1;
break;
case GL_TRIANGLE_FAN:
if (mmesa->vertex_size == 8)
hwprim = MGA_WA_TRIFAN_T0;
else
hwprim = MGA_WA_TRIFAN_T0T1;
break;
default:
return;
}
mgaRasterPrimitive( ctx, GL_TRIANGLES, hwprim );
}
/* Determine the rasterized primitive when not drawing unfilled
* polygons.
*
* Used only for the default render stage which always decomposes
* primitives to trianges/lines/points. For the accelerated stage,
* which renders strips as strips, the equivalent calculations are
* performed in mgarender.c.
*/
static void mgaRenderPrimitive( GLcontext *ctx, GLenum prim )
{
mgaContextPtr mmesa = MGA_CONTEXT(ctx);
GLuint rprim = reduced_prim[prim];
mmesa->render_primitive = prim;
if (rprim == GL_TRIANGLES && (ctx->_TriangleCaps & DD_TRI_UNFILLED))
return;
if (mmesa->raster_primitive != rprim) {
mgaRasterPrimitive( ctx, rprim, MGA_WA_TRIANGLES );
}
}