/**************************************************************************
*
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* 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
+ * IN NO EVENT SHALL VMWARE 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>
+ * Keith Whitwell <keithw@vmware.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"
+
+#include "main/core.h"
+#include "main/stencil.h"
/**
- * Convert GLenum depth func tokens to pipe tokens.
+ * Convert an OpenGL compare mode to a pipe tokens.
*/
-static GLuint
-gl_depth_func_to_sp(GLenum func)
+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);
+ STATIC_ASSERT(PIPE_FUNC_NEVER == GL_NEVER - GL_NEVER);
+ STATIC_ASSERT(PIPE_FUNC_LESS == GL_LESS - GL_NEVER);
+ STATIC_ASSERT(PIPE_FUNC_EQUAL == GL_EQUAL - GL_NEVER);
+ STATIC_ASSERT(PIPE_FUNC_LEQUAL == GL_LEQUAL - GL_NEVER);
+ STATIC_ASSERT(PIPE_FUNC_GREATER == GL_GREATER - GL_NEVER);
+ STATIC_ASSERT(PIPE_FUNC_NOTEQUAL == GL_NOTEQUAL - GL_NEVER);
+ STATIC_ASSERT(PIPE_FUNC_GEQUAL == GL_GEQUAL - GL_NEVER);
+ STATIC_ASSERT(PIPE_FUNC_ALWAYS == GL_ALWAYS - GL_NEVER);
assert(func >= GL_NEVER);
assert(func <= GL_ALWAYS);
return func - GL_NEVER;
}
-static void
-update_depth( struct st_context *st )
+/**
+ * Convert GLenum stencil op tokens to pipe tokens.
+ */
+static GLuint
+gl_stencil_op_to_pipe(GLenum func)
{
- struct pipe_depth_state depth;
+ 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;
+ }
+}
- memset(&depth, 0, sizeof(depth));
+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);
+ }
- depth.enabled = st->ctx->Depth.Test;
- depth.writemask = st->ctx->Depth.Mask;
- depth.func = gl_depth_func_to_sp(st->ctx->Depth.Func);
- depth.clear = st->ctx->Depth.Clear;
+ 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] = _mesa_get_stencil_ref(ctx, 0);
- if (memcmp(&depth, &st->state.depth, sizeof(depth)) != 0) {
- /* state has changed */
- st->state.depth = depth; /* struct copy */
- st->pipe->set_depth_state(st->pipe, &depth); /* set new state */
+ 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] = _mesa_get_stencil_ref(ctx, back);
+ }
+ 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 = {
- .dirty = {
- .mesa = (_NEW_DEPTH),
- .st = 0,
+const struct st_tracked_state st_update_depth_stencil_alpha = {
+ "st_update_depth_stencil", /* name */
+ { /* dirty */
+ (_NEW_DEPTH|_NEW_STENCIL|_NEW_COLOR|_NEW_BUFFERS),/* mesa */
+ 0, /* st */
},
- .update = update_depth
+ update_depth_stencil_alpha /* update */
};
projects / mesa.git / blobdiff