On 04/13/2011 01:27 PM, Eric Anholt wrote:
Fixes fbo-drawbuffers-arbfp.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=34321
---
src/mesa/program/program_parse.y | 29 +++++++++++++++++++++++++++++
src/mesa/program/program_parser.h | 1 +
2 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/src/mesa/program/program_parse.y b/src/mesa/program/program_parse.y
index 19aa8cc..b35bc5a 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;
diff --git a/src/mesa/program/program_parser.h
b/src/mesa/program/program_parser.h
index d689eef..8e5aaee 100644
--- a/src/mesa/program/program_parser.h
+++ b/src/mesa/program/program_parser.h
@@ -173,6 +173,7 @@ struct asm_parser_state {
unsigned MaxClipPlanes;
unsigned MaxLights;
unsigned MaxProgramMatrices;
+ unsigned MaxDrawBuffers;
/*@}*/
/**
For the series:
Signed-off-by: Brian Paul <bri...@vmware.com>
-Brian
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