From 2fa6012f6a0b02de6093cbccba3bf4432f072e57 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Wed, 12 Jan 2011 17:32:00 -0700 Subject: [PATCH] mesa: fix num_draw_buffers==0 in fixed-function fragment program generation This fixes a problem when glDrawBuffers(GL_NONE). The fragment program was writing to color output[0] but OutputsWritten was 0. That led to a failed assertion in the Mesa->TGSI translation code. NOTE: This is a candidate for the 7.9 and 7.10 branches. --- src/mesa/main/texenvprogram.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/mesa/main/texenvprogram.c b/src/mesa/main/texenvprogram.c index a3fa3fe..c1380f2 100644 --- a/src/mesa/main/texenvprogram.c +++ b/src/mesa/main/texenvprogram.c @@ -1467,7 +1467,7 @@ create_new_program(struct gl_context *ctx, struct state_key *key, p.last_tex_stage = 0; release_temps(ctx, &p); - if (key->enabled_units) { + if (key->enabled_units && key->num_draw_buffers) { GLboolean needbumpstage = GL_FALSE; /* Zeroth pass - bump map textures first */ @@ -1560,7 +1560,7 @@ create_new_program(struct gl_context *ctx, struct state_key *key, _mesa_copy_instructions(p.program->Base.Instructions, instBuffer, p.program->Base.NumInstructions); - if (p.program->FogOption) { + if (key->num_draw_buffers && p.program->FogOption) { _mesa_append_fog_code(ctx, p.program); p.program->FogOption = GL_NONE; } -- 2.7.4