diff options
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 6c51b1ac1..524f8986f 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.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 */ -}; +/**************************************************************************
+ *
+ * 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 */
+};
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