From 198ec96d364dabd82952a451eeda7937db383f0d Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Thu, 29 Oct 2009 15:01:02 -0600 Subject: [PATCH] i965: define, use BRW_MAX_DRAW_BUFFERS i965 might support more than 4 color draw buffers. But if not, this protects from breakage if the Mesa limit is raised. --- src/mesa/drivers/dri/i965/brw_context.c | 1 + src/mesa/drivers/dri/i965/brw_context.h | 9 ++++++--- src/mesa/drivers/dri/i965/brw_wm_surface_state.c | 2 +- 3 files changed, 8 insertions(+), 4 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c index c300c33adce..48685c087b8 100644 --- a/src/mesa/drivers/dri/i965/brw_context.c +++ b/src/mesa/drivers/dri/i965/brw_context.c @@ -105,6 +105,7 @@ GLboolean brwCreateContext( const __GLcontextModes *mesaVis, TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline; + ctx->Const.MaxDrawBuffers = BRW_MAX_DRAW_BUFFERS; ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT; ctx->Const.MaxTextureCoordUnits = 8; /* Mesa limit */ ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureCoordUnits, diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h index 78345697613..59f9475b5ac 100644 --- a/src/mesa/drivers/dri/i965/brw_context.h +++ b/src/mesa/drivers/dri/i965/brw_context.h @@ -252,20 +252,23 @@ struct brw_vs_ouput_sizes { /** Number of texture sampler units */ #define BRW_MAX_TEX_UNIT 16 +/** Max number of render targets in a shader */ +#define BRW_MAX_DRAW_BUFFERS 4 + /** * Size of our surface binding table for the WM. * This contains pointers to the drawing surfaces and current texture * objects and shader constant buffers (+2). */ -#define BRW_WM_MAX_SURF (MAX_DRAW_BUFFERS + BRW_MAX_TEX_UNIT + 1) +#define BRW_WM_MAX_SURF (BRW_MAX_DRAW_BUFFERS + BRW_MAX_TEX_UNIT + 1) /** * Helpers to convert drawing buffers, textures and constant buffers * to surface binding table indexes, for WM. */ #define SURF_INDEX_DRAW(d) (d) -#define SURF_INDEX_FRAG_CONST_BUFFER (MAX_DRAW_BUFFERS) -#define SURF_INDEX_TEXTURE(t) (MAX_DRAW_BUFFERS + 1 + (t)) +#define SURF_INDEX_FRAG_CONST_BUFFER (BRW_MAX_DRAW_BUFFERS) +#define SURF_INDEX_TEXTURE(t) (BRW_MAX_DRAW_BUFFERS + 1 + (t)) /** * Size of surface binding table for the VS. diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c index 73ae06eea1b..3b2c6a25be0 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c +++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c @@ -709,7 +709,7 @@ static void prepare_wm_surfaces(struct brw_context *brw ) } old_nr_surfaces = brw->wm.nr_surfaces; - brw->wm.nr_surfaces = MAX_DRAW_BUFFERS; + brw->wm.nr_surfaces = BRW_MAX_DRAW_BUFFERS; if (brw->wm.surf_bo[SURF_INDEX_FRAG_CONST_BUFFER] != NULL) brw->wm.nr_surfaces = SURF_INDEX_FRAG_CONST_BUFFER + 1; -- 2.30.2