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author | marha <marha@users.sourceforge.net> | 2011-03-30 06:43:04 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2011-03-30 06:43:04 +0000 |
commit | 2039567395da75a3ae318fb82738cdcf2caa05a1 (patch) | |
tree | 23caaf9e0f6867d85f5cffc284d008c591ae99cb /mesalib/src/mesa/state_tracker/st_atom_depth.c | |
parent | 24abc56b37a3ec32a03b7eafccd96607ae13ea89 (diff) | |
download | vcxsrv-2039567395da75a3ae318fb82738cdcf2caa05a1.tar.gz vcxsrv-2039567395da75a3ae318fb82738cdcf2caa05a1.tar.bz2 vcxsrv-2039567395da75a3ae318fb82738cdcf2caa05a1.zip |
mesa git update 30 Mar 2011
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_atom_depth.c')
-rw-r--r-- | mesalib/src/mesa/state_tracker/st_atom_depth.c | 320 |
1 files changed, 160 insertions, 160 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_atom_depth.c b/mesalib/src/mesa/state_tracker/st_atom_depth.c index e8e8db41d..6c51b1ac1 100644 --- a/mesalib/src/mesa/state_tracker/st_atom_depth.c +++ b/mesalib/src/mesa/state_tracker/st_atom_depth.c @@ -1,160 +1,160 @@ -/**************************************************************************
- *
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
- /*
- * Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
- * Brian Paul
- * Zack Rusin
- */
-
-
-#include <assert.h>
-
-#include "st_context.h"
-#include "st_atom.h"
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "cso_cache/cso_context.h"
-
-
-/**
- * Convert an OpenGL compare mode to a pipe tokens.
- */
-GLuint
-st_compare_func_to_pipe(GLenum func)
-{
- /* Same values, just biased */
- assert(PIPE_FUNC_NEVER == GL_NEVER - GL_NEVER);
- assert(PIPE_FUNC_LESS == GL_LESS - GL_NEVER);
- assert(PIPE_FUNC_EQUAL == GL_EQUAL - GL_NEVER);
- assert(PIPE_FUNC_LEQUAL == GL_LEQUAL - GL_NEVER);
- assert(PIPE_FUNC_GREATER == GL_GREATER - GL_NEVER);
- assert(PIPE_FUNC_NOTEQUAL == GL_NOTEQUAL - GL_NEVER);
- assert(PIPE_FUNC_GEQUAL == GL_GEQUAL - GL_NEVER);
- assert(PIPE_FUNC_ALWAYS == GL_ALWAYS - GL_NEVER);
- assert(func >= GL_NEVER);
- assert(func <= GL_ALWAYS);
- return func - GL_NEVER;
-}
-
-
-/**
- * Convert GLenum stencil op tokens to pipe tokens.
- */
-static GLuint
-gl_stencil_op_to_pipe(GLenum func)
-{
- switch (func) {
- case GL_KEEP:
- return PIPE_STENCIL_OP_KEEP;
- case GL_ZERO:
- return PIPE_STENCIL_OP_ZERO;
- case GL_REPLACE:
- return PIPE_STENCIL_OP_REPLACE;
- case GL_INCR:
- return PIPE_STENCIL_OP_INCR;
- case GL_DECR:
- return PIPE_STENCIL_OP_DECR;
- case GL_INCR_WRAP:
- return PIPE_STENCIL_OP_INCR_WRAP;
- case GL_DECR_WRAP:
- return PIPE_STENCIL_OP_DECR_WRAP;
- case GL_INVERT:
- return PIPE_STENCIL_OP_INVERT;
- default:
- assert("invalid GL token in gl_stencil_op_to_pipe()" == NULL);
- return 0;
- }
-}
-
-static void
-update_depth_stencil_alpha(struct st_context *st)
-{
- struct pipe_depth_stencil_alpha_state *dsa = &st->state.depth_stencil;
- struct pipe_stencil_ref sr;
- struct gl_context *ctx = st->ctx;
-
- memset(dsa, 0, sizeof(*dsa));
- memset(&sr, 0, sizeof(sr));
-
- if (ctx->Depth.Test && ctx->DrawBuffer->Visual.depthBits > 0) {
- dsa->depth.enabled = 1;
- dsa->depth.writemask = ctx->Depth.Mask;
- dsa->depth.func = st_compare_func_to_pipe(ctx->Depth.Func);
- }
-
- if (ctx->Stencil.Enabled && ctx->DrawBuffer->Visual.stencilBits > 0) {
- dsa->stencil[0].enabled = 1;
- dsa->stencil[0].func = st_compare_func_to_pipe(ctx->Stencil.Function[0]);
- dsa->stencil[0].fail_op = gl_stencil_op_to_pipe(ctx->Stencil.FailFunc[0]);
- dsa->stencil[0].zfail_op = gl_stencil_op_to_pipe(ctx->Stencil.ZFailFunc[0]);
- dsa->stencil[0].zpass_op = gl_stencil_op_to_pipe(ctx->Stencil.ZPassFunc[0]);
- dsa->stencil[0].valuemask = ctx->Stencil.ValueMask[0] & 0xff;
- dsa->stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;
- sr.ref_value[0] = ctx->Stencil.Ref[0] & 0xff;
-
- if (ctx->Stencil._TestTwoSide) {
- const GLuint back = ctx->Stencil._BackFace;
- dsa->stencil[1].enabled = 1;
- dsa->stencil[1].func = st_compare_func_to_pipe(ctx->Stencil.Function[back]);
- dsa->stencil[1].fail_op = gl_stencil_op_to_pipe(ctx->Stencil.FailFunc[back]);
- dsa->stencil[1].zfail_op = gl_stencil_op_to_pipe(ctx->Stencil.ZFailFunc[back]);
- dsa->stencil[1].zpass_op = gl_stencil_op_to_pipe(ctx->Stencil.ZPassFunc[back]);
- dsa->stencil[1].valuemask = ctx->Stencil.ValueMask[back] & 0xff;
- dsa->stencil[1].writemask = ctx->Stencil.WriteMask[back] & 0xff;
- sr.ref_value[1] = ctx->Stencil.Ref[back] & 0xff;
- }
- else {
- /* This should be unnecessary. Drivers must not expect this to
- * contain valid data, except the enabled bit
- */
- dsa->stencil[1] = dsa->stencil[0];
- dsa->stencil[1].enabled = 0;
- sr.ref_value[1] = sr.ref_value[0];
- }
- }
-
- if (ctx->Color.AlphaEnabled) {
- dsa->alpha.enabled = 1;
- dsa->alpha.func = st_compare_func_to_pipe(ctx->Color.AlphaFunc);
- dsa->alpha.ref_value = ctx->Color.AlphaRef;
- }
-
- cso_set_depth_stencil_alpha(st->cso_context, dsa);
- cso_set_stencil_ref(st->cso_context, &sr);
-}
-
-
-const struct st_tracked_state st_update_depth_stencil_alpha = {
- "st_update_depth_stencil", /* name */
- { /* dirty */
- (_NEW_DEPTH|_NEW_STENCIL|_NEW_COLOR), /* mesa */
- 0, /* st */
- },
- update_depth_stencil_alpha /* update */
-};
+/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + * Brian Paul + * Zack Rusin + */ + + +#include <assert.h> + +#include "st_context.h" +#include "st_atom.h" +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "cso_cache/cso_context.h" + + +/** + * Convert an OpenGL compare mode to a pipe tokens. + */ +GLuint +st_compare_func_to_pipe(GLenum func) +{ + /* Same values, just biased */ + assert(PIPE_FUNC_NEVER == GL_NEVER - GL_NEVER); + assert(PIPE_FUNC_LESS == GL_LESS - GL_NEVER); + assert(PIPE_FUNC_EQUAL == GL_EQUAL - GL_NEVER); + assert(PIPE_FUNC_LEQUAL == GL_LEQUAL - GL_NEVER); + assert(PIPE_FUNC_GREATER == GL_GREATER - GL_NEVER); + assert(PIPE_FUNC_NOTEQUAL == GL_NOTEQUAL - GL_NEVER); + assert(PIPE_FUNC_GEQUAL == GL_GEQUAL - GL_NEVER); + assert(PIPE_FUNC_ALWAYS == GL_ALWAYS - GL_NEVER); + assert(func >= GL_NEVER); + assert(func <= GL_ALWAYS); + return func - GL_NEVER; +} + + +/** + * Convert GLenum stencil op tokens to pipe tokens. + */ +static GLuint +gl_stencil_op_to_pipe(GLenum func) +{ + switch (func) { + case GL_KEEP: + return PIPE_STENCIL_OP_KEEP; + case GL_ZERO: + return PIPE_STENCIL_OP_ZERO; + case GL_REPLACE: + return PIPE_STENCIL_OP_REPLACE; + case GL_INCR: + return PIPE_STENCIL_OP_INCR; + case GL_DECR: + return PIPE_STENCIL_OP_DECR; + case GL_INCR_WRAP: + return PIPE_STENCIL_OP_INCR_WRAP; + case GL_DECR_WRAP: + return PIPE_STENCIL_OP_DECR_WRAP; + case GL_INVERT: + return PIPE_STENCIL_OP_INVERT; + default: + assert("invalid GL token in gl_stencil_op_to_pipe()" == NULL); + return 0; + } +} + +static void +update_depth_stencil_alpha(struct st_context *st) +{ + struct pipe_depth_stencil_alpha_state *dsa = &st->state.depth_stencil; + struct pipe_stencil_ref sr; + struct gl_context *ctx = st->ctx; + + memset(dsa, 0, sizeof(*dsa)); + memset(&sr, 0, sizeof(sr)); + + if (ctx->Depth.Test && ctx->DrawBuffer->Visual.depthBits > 0) { + dsa->depth.enabled = 1; + dsa->depth.writemask = ctx->Depth.Mask; + dsa->depth.func = st_compare_func_to_pipe(ctx->Depth.Func); + } + + if (ctx->Stencil.Enabled && ctx->DrawBuffer->Visual.stencilBits > 0) { + dsa->stencil[0].enabled = 1; + dsa->stencil[0].func = st_compare_func_to_pipe(ctx->Stencil.Function[0]); + dsa->stencil[0].fail_op = gl_stencil_op_to_pipe(ctx->Stencil.FailFunc[0]); + dsa->stencil[0].zfail_op = gl_stencil_op_to_pipe(ctx->Stencil.ZFailFunc[0]); + dsa->stencil[0].zpass_op = gl_stencil_op_to_pipe(ctx->Stencil.ZPassFunc[0]); + dsa->stencil[0].valuemask = ctx->Stencil.ValueMask[0] & 0xff; + dsa->stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff; + sr.ref_value[0] = ctx->Stencil.Ref[0] & 0xff; + + if (ctx->Stencil._TestTwoSide) { + const GLuint back = ctx->Stencil._BackFace; + dsa->stencil[1].enabled = 1; + dsa->stencil[1].func = st_compare_func_to_pipe(ctx->Stencil.Function[back]); + dsa->stencil[1].fail_op = gl_stencil_op_to_pipe(ctx->Stencil.FailFunc[back]); + dsa->stencil[1].zfail_op = gl_stencil_op_to_pipe(ctx->Stencil.ZFailFunc[back]); + dsa->stencil[1].zpass_op = gl_stencil_op_to_pipe(ctx->Stencil.ZPassFunc[back]); + dsa->stencil[1].valuemask = ctx->Stencil.ValueMask[back] & 0xff; + dsa->stencil[1].writemask = ctx->Stencil.WriteMask[back] & 0xff; + sr.ref_value[1] = ctx->Stencil.Ref[back] & 0xff; + } + else { + /* This should be unnecessary. Drivers must not expect this to + * contain valid data, except the enabled bit + */ + dsa->stencil[1] = dsa->stencil[0]; + dsa->stencil[1].enabled = 0; + sr.ref_value[1] = sr.ref_value[0]; + } + } + + if (ctx->Color.AlphaEnabled) { + dsa->alpha.enabled = 1; + dsa->alpha.func = st_compare_func_to_pipe(ctx->Color.AlphaFunc); + dsa->alpha.ref_value = ctx->Color.AlphaRefUnclamped; + } + + cso_set_depth_stencil_alpha(st->cso_context, dsa); + cso_set_stencil_ref(st->cso_context, &sr); +} + + +const struct st_tracked_state st_update_depth_stencil_alpha = { + "st_update_depth_stencil", /* name */ + { /* dirty */ + (_NEW_DEPTH|_NEW_STENCIL|_NEW_COLOR), /* mesa */ + 0, /* st */ + }, + update_depth_stencil_alpha /* update */ +}; |