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author | marha <marha@users.sourceforge.net> | 2015-02-22 21:39:56 +0100 |
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committer | marha <marha@users.sourceforge.net> | 2015-02-22 21:39:56 +0100 |
commit | 462f18c7b25fe3e467f837647d07ab0a78aa8d2b (patch) | |
tree | fc8013c0a1bac05a1945846c1697e973f4c35013 /mesalib/src/gallium/auxiliary/util/u_pstipple.c | |
parent | 36f711ee12b6dd5184198abed3aa551efb585587 (diff) | |
download | vcxsrv-462f18c7b25fe3e467f837647d07ab0a78aa8d2b.tar.gz vcxsrv-462f18c7b25fe3e467f837647d07ab0a78aa8d2b.tar.bz2 vcxsrv-462f18c7b25fe3e467f837647d07ab0a78aa8d2b.zip |
Merged origin/release (checked in because wanted to merge new stuff)
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_pstipple.c')
-rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_pstipple.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_pstipple.c b/mesalib/src/gallium/auxiliary/util/u_pstipple.c index 1e1ec4a98..0a20bdb47 100644 --- a/mesalib/src/gallium/auxiliary/util/u_pstipple.c +++ b/mesalib/src/gallium/auxiliary/util/u_pstipple.c @@ -182,6 +182,8 @@ struct pstip_transform_context { int freeSampler; /** an available sampler for the pstipple */ int numImmed; uint coordOrigin; + unsigned fixedUnit; + bool hasFixedUnit; }; @@ -279,7 +281,8 @@ pstip_transform_prolog(struct tgsi_transform_context *ctx) } /* declare new sampler */ - tgsi_transform_sampler_decl(ctx, pctx->freeSampler); + tgsi_transform_sampler_decl(ctx, + pctx->hasFixedUnit ? pctx->fixedUnit : pctx->freeSampler); /* Declare temp[0] reg if not already declared. * We can always use temp[0] since this code is before @@ -318,7 +321,8 @@ pstip_transform_prolog(struct tgsi_transform_context *ctx) tgsi_transform_tex_2d_inst(ctx, TGSI_FILE_TEMPORARY, texTemp, TGSI_FILE_TEMPORARY, texTemp, - pctx->freeSampler); + pctx->hasFixedUnit ? pctx->fixedUnit + : pctx->freeSampler); /* KILL_IF -texTemp; # if -texTemp < 0, kill fragment */ tgsi_transform_kill_inst(ctx, @@ -330,12 +334,16 @@ pstip_transform_prolog(struct tgsi_transform_context *ctx) /** * Given a fragment shader, return a new fragment shader which * samples a stipple texture and executes KILL. + * * \param samplerUnitOut returns the index of the sampler unit which - * will be used to sample the stipple texture + * will be used to sample the stipple texture; + * if NULL, the fixed unit is used + * \param fixedUnit fixed texture unit used for the stipple texture */ struct tgsi_token * util_pstipple_create_fragment_shader(const struct tgsi_token *tokens, - unsigned *samplerUnitOut) + unsigned *samplerUnitOut, + unsigned fixedUnit) { struct pstip_transform_context transform; const uint newLen = tgsi_num_tokens(tokens) + NUM_NEW_TOKENS; @@ -352,6 +360,8 @@ util_pstipple_create_fragment_shader(const struct tgsi_token *tokens, transform.wincoordInput = -1; transform.maxInput = -1; transform.coordOrigin = TGSI_FS_COORD_ORIGIN_UPPER_LEFT; + transform.hasFixedUnit = !samplerUnitOut; + transform.fixedUnit = fixedUnit; transform.base.prolog = pstip_transform_prolog; transform.base.transform_declaration = pstip_transform_decl; transform.base.transform_immediate = pstip_transform_immed; @@ -368,9 +378,10 @@ util_pstipple_create_fragment_shader(const struct tgsi_token *tokens, tgsi_dump(new_fs->tokens, 0); #endif - assert(transform.freeSampler < PIPE_MAX_SAMPLERS); - *samplerUnitOut = transform.freeSampler; + if (samplerUnitOut) { + assert(transform.freeSampler < PIPE_MAX_SAMPLERS); + *samplerUnitOut = transform.freeSampler; + } return new_tokens; } - |