diff options
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_prim_vbuf.c | 308 | ||||
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_setup.c | 5 |
2 files changed, 198 insertions, 115 deletions
diff --git a/src/gallium/drivers/softpipe/sp_prim_vbuf.c b/src/gallium/drivers/softpipe/sp_prim_vbuf.c index a58bc107c0a..0168b320371 100644 --- a/src/gallium/drivers/softpipe/sp_prim_vbuf.c +++ b/src/gallium/drivers/softpipe/sp_prim_vbuf.c @@ -164,20 +164,21 @@ sp_vbuf_draw(struct vbuf_render *vbr, const ushort *indices, uint nr) struct softpipe_context *softpipe = cvbr->softpipe; const unsigned stride = softpipe->vertex_info_vbuf.size * sizeof(float); const void *vertex_buffer = cvbr->vertex_buffer; - struct setup_context *setup_ctx = cvbr->setup; + struct setup_context *setup = cvbr->setup; + const boolean flatshade_first = softpipe->rasterizer->flatshade_first; unsigned i; switch (cvbr->prim) { case PIPE_PRIM_POINTS: for (i = 0; i < nr; i++) { - sp_setup_point( setup_ctx, + sp_setup_point( setup, get_vert(vertex_buffer, indices[i-0], stride) ); } break; case PIPE_PRIM_LINES: for (i = 1; i < nr; i += 2) { - sp_setup_line( setup_ctx, + sp_setup_line( setup, get_vert(vertex_buffer, indices[i-1], stride), get_vert(vertex_buffer, indices[i-0], stride) ); } @@ -185,7 +186,7 @@ sp_vbuf_draw(struct vbuf_render *vbr, const ushort *indices, uint nr) case PIPE_PRIM_LINE_STRIP: for (i = 1; i < nr; i ++) { - sp_setup_line( setup_ctx, + sp_setup_line( setup, get_vert(vertex_buffer, indices[i-1], stride), get_vert(vertex_buffer, indices[i-0], stride) ); } @@ -193,48 +194,41 @@ sp_vbuf_draw(struct vbuf_render *vbr, const ushort *indices, uint nr) case PIPE_PRIM_LINE_LOOP: for (i = 1; i < nr; i ++) { - sp_setup_line( setup_ctx, + sp_setup_line( setup, get_vert(vertex_buffer, indices[i-1], stride), get_vert(vertex_buffer, indices[i-0], stride) ); } if (nr) { - sp_setup_line( setup_ctx, + sp_setup_line( setup, get_vert(vertex_buffer, indices[nr-1], stride), get_vert(vertex_buffer, indices[0], stride) ); } break; case PIPE_PRIM_TRIANGLES: - if (softpipe->rasterizer->flatshade_first) { - for (i = 2; i < nr; i += 3) { - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-0], stride), - get_vert(vertex_buffer, indices[i-2], stride) ); - } - } - else { - for (i = 2; i < nr; i += 3) { - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-2], stride), - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); - } + for (i = 2; i < nr; i += 3) { + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[i-2], stride), + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-0], stride) ); } break; case PIPE_PRIM_TRIANGLE_STRIP: - if (softpipe->rasterizer->flatshade_first) { + if (flatshade_first) { for (i = 2; i < nr; i += 1) { - sp_setup_tri( setup_ctx, + /* emit first triangle vertex as first triangle vertex */ + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[i-2], stride), get_vert(vertex_buffer, indices[i+(i&1)-1], stride), - get_vert(vertex_buffer, indices[i-(i&1)], stride), - get_vert(vertex_buffer, indices[i-2], stride) ); + get_vert(vertex_buffer, indices[i-(i&1)], stride) ); + } } else { for (i = 2; i < nr; i += 1) { - sp_setup_tri( setup_ctx, + /* emit last triangle vertex as last triangle vertex */ + sp_setup_tri( setup, get_vert(vertex_buffer, indices[i+(i&1)-2], stride), get_vert(vertex_buffer, indices[i-(i&1)-1], stride), get_vert(vertex_buffer, indices[i-0], stride) ); @@ -243,17 +237,19 @@ sp_vbuf_draw(struct vbuf_render *vbr, const ushort *indices, uint nr) break; case PIPE_PRIM_TRIANGLE_FAN: - if (softpipe->rasterizer->flatshade_first) { + if (flatshade_first) { for (i = 2; i < nr; i += 1) { - sp_setup_tri( setup_ctx, + /* emit first non-spoke vertex as first vertex */ + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[i-1], stride), get_vert(vertex_buffer, indices[i-0], stride), - get_vert(vertex_buffer, indices[0], stride), - get_vert(vertex_buffer, indices[i-1], stride) ); + get_vert(vertex_buffer, indices[0], stride) ); } } else { for (i = 2; i < nr; i += 1) { - sp_setup_tri( setup_ctx, + /* emit last non-spoke vertex as last vertex */ + sp_setup_tri( setup, get_vert(vertex_buffer, indices[0], stride), get_vert(vertex_buffer, indices[i-1], stride), get_vert(vertex_buffer, indices[i-0], stride) ); @@ -262,43 +258,88 @@ sp_vbuf_draw(struct vbuf_render *vbr, const ushort *indices, uint nr) break; case PIPE_PRIM_QUADS: - for (i = 3; i < nr; i += 4) { - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-3], stride), - get_vert(vertex_buffer, indices[i-2], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); + /* GL quads don't follow provoking vertex convention */ + if (flatshade_first) { + /* emit last quad vertex as first triangle vertex */ + for (i = 3; i < nr; i += 4) { + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[i-0], stride), + get_vert(vertex_buffer, indices[i-3], stride), + get_vert(vertex_buffer, indices[i-2], stride) ); - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-2], stride), - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[i-0], stride), + get_vert(vertex_buffer, indices[i-2], stride), + get_vert(vertex_buffer, indices[i-1], stride) ); + } + } + else { + /* emit last quad vertex as last triangle vertex */ + for (i = 3; i < nr; i += 4) { + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[i-3], stride), + get_vert(vertex_buffer, indices[i-2], stride), + get_vert(vertex_buffer, indices[i-0], stride) ); + + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[i-2], stride), + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-0], stride) ); + } } break; case PIPE_PRIM_QUAD_STRIP: - for (i = 3; i < nr; i += 2) { - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-3], stride), - get_vert(vertex_buffer, indices[i-2], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-3], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); + /* GL quad strips don't follow provoking vertex convention */ + if (flatshade_first) { + /* emit last quad vertex as first triangle vertex */ + for (i = 3; i < nr; i += 2) { + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[i-0], stride), + get_vert(vertex_buffer, indices[i-3], stride), + get_vert(vertex_buffer, indices[i-2], stride) ); + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[i-0], stride), + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-3], stride) ); + } + } + else { + /* emit last quad vertex as last triangle vertex */ + for (i = 3; i < nr; i += 2) { + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[i-3], stride), + get_vert(vertex_buffer, indices[i-2], stride), + get_vert(vertex_buffer, indices[i-0], stride) ); + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-3], stride), + get_vert(vertex_buffer, indices[i-0], stride) ); + } } break; case PIPE_PRIM_POLYGON: /* Almost same as tri fan but the _first_ vertex specifies the flat - * shading color. Note that the first polygon vertex is passed as - * the last triangle vertex here. - * flatshade_first state makes no difference. + * shading color. */ - for (i = 2; i < nr; i += 1) { - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-0], stride), - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[0], stride) ); + if (flatshade_first) { + /* emit first polygon vertex as first triangle vertex */ + for (i = 2; i < nr; i += 1) { + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[0], stride), + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-0], stride) ); + } + } + else { + /* emit first polygon vertex as last triangle vertex */ + for (i = 2; i < nr; i += 1) { + sp_setup_tri( setup, + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-0], stride), + get_vert(vertex_buffer, indices[0], stride) ); + } } break; @@ -317,23 +358,24 @@ sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr) { struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr); struct softpipe_context *softpipe = cvbr->softpipe; - struct setup_context *setup_ctx = cvbr->setup; + struct setup_context *setup = cvbr->setup; const unsigned stride = softpipe->vertex_info_vbuf.size * sizeof(float); const void *vertex_buffer = (void *) get_vert(cvbr->vertex_buffer, start, stride); + const boolean flatshade_first = softpipe->rasterizer->flatshade_first; unsigned i; switch (cvbr->prim) { case PIPE_PRIM_POINTS: for (i = 0; i < nr; i++) { - sp_setup_point( setup_ctx, + sp_setup_point( setup, get_vert(vertex_buffer, i-0, stride) ); } break; case PIPE_PRIM_LINES: for (i = 1; i < nr; i += 2) { - sp_setup_line( setup_ctx, + sp_setup_line( setup, get_vert(vertex_buffer, i-1, stride), get_vert(vertex_buffer, i-0, stride) ); } @@ -341,7 +383,7 @@ sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr) case PIPE_PRIM_LINE_STRIP: for (i = 1; i < nr; i ++) { - sp_setup_line( setup_ctx, + sp_setup_line( setup, get_vert(vertex_buffer, i-1, stride), get_vert(vertex_buffer, i-0, stride) ); } @@ -349,48 +391,40 @@ sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr) case PIPE_PRIM_LINE_LOOP: for (i = 1; i < nr; i ++) { - sp_setup_line( setup_ctx, + sp_setup_line( setup, get_vert(vertex_buffer, i-1, stride), get_vert(vertex_buffer, i-0, stride) ); } if (nr) { - sp_setup_line( setup_ctx, + sp_setup_line( setup, get_vert(vertex_buffer, nr-1, stride), get_vert(vertex_buffer, 0, stride) ); } break; case PIPE_PRIM_TRIANGLES: - if (softpipe->rasterizer->flatshade_first) { - for (i = 2; i < nr; i += 3) { - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride), - get_vert(vertex_buffer, i-2, stride) ); - } - } - else { - for (i = 2; i < nr; i += 3) { - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-2, stride), - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride) ); - } + for (i = 2; i < nr; i += 3) { + sp_setup_tri( setup, + get_vert(vertex_buffer, i-2, stride), + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-0, stride) ); } break; case PIPE_PRIM_TRIANGLE_STRIP: - if (softpipe->rasterizer->flatshade_first) { + if (flatshade_first) { for (i = 2; i < nr; i++) { - sp_setup_tri( setup_ctx, + /* emit first triangle vertex as first triangle vertex */ + sp_setup_tri( setup, + get_vert(vertex_buffer, i-2, stride), get_vert(vertex_buffer, i+(i&1)-1, stride), - get_vert(vertex_buffer, i-(i&1), stride), - get_vert(vertex_buffer, i-2, stride) ); + get_vert(vertex_buffer, i-(i&1), stride) ); } } else { for (i = 2; i < nr; i++) { - sp_setup_tri( setup_ctx, + /* emit last triangle vertex as last triangle vertex */ + sp_setup_tri( setup, get_vert(vertex_buffer, i+(i&1)-2, stride), get_vert(vertex_buffer, i-(i&1)-1, stride), get_vert(vertex_buffer, i-0, stride) ); @@ -399,17 +433,19 @@ sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr) break; case PIPE_PRIM_TRIANGLE_FAN: - if (softpipe->rasterizer->flatshade_first) { + if (flatshade_first) { for (i = 2; i < nr; i += 1) { - sp_setup_tri( setup_ctx, + /* emit first non-spoke vertex as first vertex */ + sp_setup_tri( setup, + get_vert(vertex_buffer, i-1, stride), get_vert(vertex_buffer, i-0, stride), - get_vert(vertex_buffer, 0, stride), - get_vert(vertex_buffer, i-1, stride) ); + get_vert(vertex_buffer, 0, stride) ); } } else { for (i = 2; i < nr; i += 1) { - sp_setup_tri( setup_ctx, + /* emit last non-spoke vertex as last vertex */ + sp_setup_tri( setup, get_vert(vertex_buffer, 0, stride), get_vert(vertex_buffer, i-1, stride), get_vert(vertex_buffer, i-0, stride) ); @@ -418,42 +454,86 @@ sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr) break; case PIPE_PRIM_QUADS: - for (i = 3; i < nr; i += 4) { - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-3, stride), - get_vert(vertex_buffer, i-2, stride), - get_vert(vertex_buffer, i-0, stride) ); - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-2, stride), - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride) ); + /* GL quads don't follow provoking vertex convention */ + if (flatshade_first) { + /* emit last quad vertex as first triangle vertex */ + for (i = 3; i < nr; i += 4) { + sp_setup_tri( setup, + get_vert(vertex_buffer, i-0, stride), + get_vert(vertex_buffer, i-3, stride), + get_vert(vertex_buffer, i-2, stride) ); + sp_setup_tri( setup, + get_vert(vertex_buffer, i-0, stride), + get_vert(vertex_buffer, i-2, stride), + get_vert(vertex_buffer, i-1, stride) ); + } + } + else { + /* emit last quad vertex as last triangle vertex */ + for (i = 3; i < nr; i += 4) { + sp_setup_tri( setup, + get_vert(vertex_buffer, i-3, stride), + get_vert(vertex_buffer, i-2, stride), + get_vert(vertex_buffer, i-0, stride) ); + sp_setup_tri( setup, + get_vert(vertex_buffer, i-2, stride), + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-0, stride) ); + } } break; case PIPE_PRIM_QUAD_STRIP: - for (i = 3; i < nr; i += 2) { - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-3, stride), - get_vert(vertex_buffer, i-2, stride), - get_vert(vertex_buffer, i-0, stride) ); - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-3, stride), - get_vert(vertex_buffer, i-0, stride) ); + /* GL quad strips don't follow provoking vertex convention */ + if (flatshade_first) { + /* emit last quad vertex as first triangle vertex */ + for (i = 3; i < nr; i += 2) { + sp_setup_tri( setup, + get_vert(vertex_buffer, i-0, stride), + get_vert(vertex_buffer, i-3, stride), + get_vert(vertex_buffer, i-2, stride) ); + sp_setup_tri( setup, + get_vert(vertex_buffer, i-0, stride), + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-3, stride) ); + } + } + else { + /* emit last quad vertex as last triangle vertex */ + for (i = 3; i < nr; i += 2) { + sp_setup_tri( setup, + get_vert(vertex_buffer, i-3, stride), + get_vert(vertex_buffer, i-2, stride), + get_vert(vertex_buffer, i-0, stride) ); + sp_setup_tri( setup, + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-3, stride), + get_vert(vertex_buffer, i-0, stride) ); + } } break; case PIPE_PRIM_POLYGON: /* Almost same as tri fan but the _first_ vertex specifies the flat - * shading color. Note that the first polygon vertex is passed as - * the last triangle vertex here. - * flatshade_first state makes no difference. + * shading color. */ - for (i = 2; i < nr; i += 1) { - sp_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride), - get_vert(vertex_buffer, 0, stride) ); + if (flatshade_first) { + /* emit first polygon vertex as first triangle vertex */ + for (i = 2; i < nr; i += 1) { + sp_setup_tri( setup, + get_vert(vertex_buffer, 0, stride), + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-0, stride) ); + } + } + else { + /* emit first polygon vertex as last triangle vertex */ + for (i = 2; i < nr; i += 1) { + sp_setup_tri( setup, + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-0, stride), + get_vert(vertex_buffer, 0, stride) ); + } } break; diff --git a/src/gallium/drivers/softpipe/sp_setup.c b/src/gallium/drivers/softpipe/sp_setup.c index 86354664e4b..35ef9e698d5 100644 --- a/src/gallium/drivers/softpipe/sp_setup.c +++ b/src/gallium/drivers/softpipe/sp_setup.c @@ -304,7 +304,10 @@ setup_sort_vertices(struct setup_context *setup, const float (*v1)[4], const float (*v2)[4]) { - setup->vprovoke = v2; + if (setup->softpipe->rasterizer->flatshade_first) + setup->vprovoke = v0; + else + setup->vprovoke = v2; /* determine bottom to top order of vertices */ { |