diff options
author | Brian Paul <brianp@vmware.com> | 2009-02-10 16:44:02 -0700 |
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committer | Brian Paul <brianp@vmware.com> | 2009-02-10 16:44:02 -0700 |
commit | 5340b6dff73a0a23531ce2a5f28fba8303adab6e (patch) | |
tree | b141fc3648568dd8b941c966059e6ed32a8bd0ad /src/gallium/auxiliary/draw/draw_pt_decompose.h | |
parent | 9fd26daec24f21dbe17afcb2e2ab272667ee9a69 (diff) | |
parent | ee4c921b65fb76998711f3c40330505cbc49a0e0 (diff) |
Merge commit 'origin/gallium-master-merge'
This is the big merge of the gallium-0.2 branch into master.
gallium-master-merge was just the staging area for it.
Both gallium-0.2 and gallium-master-merge are considered closed now.
Conflicts:
progs/demos/Makefile
src/mesa/main/state.c
src/mesa/main/texenvprogram.c
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pt_decompose.h')
-rw-r--r-- | src/gallium/auxiliary/draw/draw_pt_decompose.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt_decompose.h b/src/gallium/auxiliary/draw/draw_pt_decompose.h new file mode 100644 index 0000000000..3fb0695687 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_decompose.h @@ -0,0 +1,153 @@ + + +static void FUNC( ARGS, + unsigned count ) +{ + LOCAL_VARS; + + switch (prim) { + case PIPE_PRIM_POINTS: + for (i = 0; i < count; i ++) { + POINT( (i + 0) ); + } + break; + + case PIPE_PRIM_LINES: + for (i = 0; i+1 < count; i += 2) { + LINE( DRAW_PIPE_RESET_STIPPLE, + (i + 0), + (i + 1)); + } + break; + + case PIPE_PRIM_LINE_LOOP: + if (count >= 2) { + flags = DRAW_PIPE_RESET_STIPPLE; + + for (i = 1; i < count; i++, flags = 0) { + LINE( flags, + (i - 1), + (i )); + } + + LINE( flags, + (i - 1), + (0 )); + } + break; + + case PIPE_PRIM_LINE_STRIP: + flags = DRAW_PIPE_RESET_STIPPLE; + for (i = 1; i < count; i++, flags = 0) { + LINE( flags, + (i - 1), + (i )); + } + break; + + case PIPE_PRIM_TRIANGLES: + for (i = 0; i+2 < count; i += 3) { + TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + (i + 0), + (i + 1), + (i + 2 )); + } + break; + + case PIPE_PRIM_TRIANGLE_STRIP: + if (flatfirst) { + for (i = 0; i+2 < count; i++) { + TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + (i + 0), + (i + 1 + (i&1)), + (i + 2 - (i&1))); + } + } + else { + for (i = 0; i+2 < count; i++) { + TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + (i + 0 + (i&1)), + (i + 1 - (i&1)), + (i + 2 )); + } + } + break; + + case PIPE_PRIM_TRIANGLE_FAN: + if (count >= 3) { + if (flatfirst) { + for (i = 0; i+2 < count; i++) { + TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + (i + 1), + (i + 2), + (0 )); + } + } + else { + for (i = 0; i+2 < count; i++) { + TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + (0), + (i + 1), + (i + 2 )); + } + } + } + break; + + + case PIPE_PRIM_QUADS: + for (i = 0; i+3 < count; i += 4) { + QUAD( (i + 0), + (i + 1), + (i + 2), + (i + 3)); + } + break; + + case PIPE_PRIM_QUAD_STRIP: + for (i = 0; i+3 < count; i += 2) { + QUAD( (i + 2), + (i + 0), + (i + 1), + (i + 3)); + } + break; + + case PIPE_PRIM_POLYGON: + { + /* These bitflags look a little odd because we submit the + * vertices as (1,2,0) to satisfy flatshade requirements. + */ + const ushort edge_first = DRAW_PIPE_EDGE_FLAG_2; + const ushort edge_middle = DRAW_PIPE_EDGE_FLAG_0; + const ushort edge_last = DRAW_PIPE_EDGE_FLAG_1; + + flags = DRAW_PIPE_RESET_STIPPLE | edge_first | edge_middle; + + for (i = 0; i+2 < count; i++, flags = edge_middle) { + + if (i + 3 == count) + flags |= edge_last; + + TRIANGLE( flags, + (i + 1), + (i + 2), + (0)); + } + } + break; + + default: + assert(0); + break; + } + + FLUSH; +} + + +#undef TRIANGLE +#undef QUAD +#undef POINT +#undef LINE +#undef FUNC |