diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/r600/r700_render.c | 55 |
1 files changed, 54 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/r600/r700_render.c b/src/mesa/drivers/dri/r600/r700_render.c index 6705dbcf4b9..9e2971a3436 100644 --- a/src/mesa/drivers/dri/r600/r700_render.c +++ b/src/mesa/drivers/dri/r600/r700_render.c @@ -223,18 +223,71 @@ static unsigned int r700PrimitiveType(int prim) } } +static int r700NumVerts(int num_verts, int prim) +{ + int verts_off = 0; + + switch (prim & PRIM_MODE_MASK) { + case GL_POINTS: + verts_off = 0; + break; + case GL_LINES: + verts_off = num_verts % 2; + break; + case GL_LINE_STRIP: + if (num_verts < 2) + verts_off = num_verts; + break; + case GL_LINE_LOOP: + if (num_verts < 2) + verts_off = num_verts; + break; + case GL_TRIANGLES: + verts_off = num_verts % 3; + break; + case GL_TRIANGLE_STRIP: + if (num_verts < 3) + verts_off = num_verts; + break; + case GL_TRIANGLE_FAN: + if (num_verts < 3) + verts_off = num_verts; + break; + case GL_QUADS: + verts_off = num_verts % 4; + break; + case GL_QUAD_STRIP: + if (num_verts < 4) + verts_off = num_verts; + else + verts_off = num_verts % 2; + break; + case GL_POLYGON: + if (num_verts < 3) + verts_off = num_verts; + break; + default: + assert(0); + return -1; + break; + } + + return num_verts - verts_off; +} + static void r700RunRenderPrimitive(GLcontext * ctx, int start, int end, int prim) { context_t *context = R700_CONTEXT(ctx); BATCH_LOCALS(&context->radeon); int type, i, total_emit; - int num_indices = end - start; + int num_indices; uint32_t vgt_draw_initiator = 0; uint32_t vgt_index_type = 0; uint32_t vgt_primitive_type = 0; uint32_t vgt_num_indices = 0; type = r700PrimitiveType(prim); + num_indices = r700NumVerts(end - start, prim); if (type < 0 || num_indices <= 0) return; |