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authorEric Anholt <[email protected]>2011-04-13 11:09:55 -0700
committerEric Anholt <[email protected]>2011-04-13 18:05:44 -0700
commit28cec9e832b716b84c11ddabfcee74e0daf6ec49 (patch)
treeca85abd9438b19cc91042967b615676bdd05a017 /src/mesa/program/program_parse.y
parent4847f802c28e595130bda14055cd52c9b1f51cd7 (diff)
mesa: Add support for the ARB_fragment_program part of ARB_draw_buffers.
Fixes fbo-drawbuffers-arbfp. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=34321 Reviewed-by: Brian Paul <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
Diffstat (limited to 'src/mesa/program/program_parse.y')
-rw-r--r--src/mesa/program/program_parse.y29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/mesa/program/program_parse.y b/src/mesa/program/program_parse.y
index 19aa8ccdb53..b35bc5a7cae 100644
--- a/src/mesa/program/program_parse.y
+++ b/src/mesa/program/program_parse.y
@@ -2064,6 +2064,34 @@ optResultFaceType:
? VERT_RESULT_COL0
: FRAG_RESULT_COLOR;
}
+ | '[' INTEGER ']'
+ {
+ if (state->mode == ARB_vertex) {
+ yyerror(& @1, state, "invalid program result name");
+ YYERROR;
+ } else {
+ if (!state->option.DrawBuffers) {
+ /* From the ARB_draw_buffers spec (same text exists
+ * for ATI_draw_buffers):
+ *
+ * If this option is not specified, a fragment
+ * program that attempts to bind
+ * "result.color[n]" will fail to load, and only
+ * "result.color" will be allowed.
+ */
+ yyerror(& @1, state,
+ "result.color[] used without "
+ "`OPTION ARB_draw_buffers' or "
+ "`OPTION ATI_draw_buffers'");
+ YYERROR;
+ } else if ($2 >= state->MaxDrawBuffers) {
+ yyerror(& @1, state,
+ "result.color[] exceeds MAX_DRAW_BUFFERS_ARB");
+ YYERROR;
+ }
+ $$ = FRAG_RESULT_DATA0 + $2;
+ }
+ }
| FRONT
{
if (state->mode == ARB_vertex) {
@@ -2681,6 +2709,7 @@ _mesa_parse_arb_program(struct gl_context *ctx, GLenum target, const GLubyte *st
state->MaxClipPlanes = ctx->Const.MaxClipPlanes;
state->MaxLights = ctx->Const.MaxLights;
state->MaxProgramMatrices = ctx->Const.MaxProgramMatrices;
+ state->MaxDrawBuffers = ctx->Const.MaxDrawBuffers;
state->state_param_enum = (target == GL_VERTEX_PROGRAM_ARB)
? STATE_VERTEX_PROGRAM : STATE_FRAGMENT_PROGRAM;