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/**************************************************************************
*
* Copyright 2003 VMware, Inc.
* 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 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.
*
**************************************************************************/
#include <stdio.h>
#include "main/glheader.h"
#include "main/context.h"
#include "pipe/p_defines.h"
#include "st_context.h"
#include "st_atom.h"
#include "st_program.h"
#include "st_manager.h"
/* The list state update functions. */
static const struct st_tracked_state *atoms[] =
{
#define ST_STATE(FLAG, st_update) &st_update,
#include "st_atom_list.h"
#undef ST_STATE
};
void st_init_atoms( struct st_context *st )
{
STATIC_ASSERT(ARRAY_SIZE(atoms) <= 64);
}
void st_destroy_atoms( struct st_context *st )
{
/* no-op */
}
/* Too complex to figure out, just check every time:
*/
static void check_program_state( struct st_context *st )
{
struct gl_context *ctx = st->ctx;
if (ctx->VertexProgram._Current != &st->vp->Base)
st->dirty |= ST_NEW_VERTEX_PROGRAM(st);
if (ctx->FragmentProgram._Current != &st->fp->Base)
st->dirty |= ST_NEW_FRAGMENT_PROGRAM;
if (ctx->GeometryProgram._Current != &st->gp->Base)
st->dirty |= ST_NEW_GEOMETRY_PROGRAM;
if (ctx->TessCtrlProgram._Current != &st->tcp->Base)
st->dirty |= ST_NEW_TESSCTRL_PROGRAM;
if (ctx->TessEvalProgram._Current != &st->tep->Base)
st->dirty |= ST_NEW_TESSEVAL_PROGRAM;
st->gfx_shaders_may_be_dirty = false;
}
static void check_attrib_edgeflag(struct st_context *st)
{
const struct gl_client_array **arrays = st->ctx->Array._DrawArrays;
GLboolean vertdata_edgeflags, edgeflag_culls_prims, edgeflags_enabled;
if (!arrays)
return;
edgeflags_enabled = st->ctx->Polygon.FrontMode != GL_FILL ||
st->ctx->Polygon.BackMode != GL_FILL;
vertdata_edgeflags = edgeflags_enabled &&
arrays[VERT_ATTRIB_EDGEFLAG]->StrideB != 0;
if (vertdata_edgeflags != st->vertdata_edgeflags) {
st->vertdata_edgeflags = vertdata_edgeflags;
st->dirty |= ST_NEW_VERTEX_PROGRAM(st);
}
edgeflag_culls_prims = edgeflags_enabled && !vertdata_edgeflags &&
!st->ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0];
if (edgeflag_culls_prims != st->edgeflag_culls_prims) {
st->edgeflag_culls_prims = edgeflag_culls_prims;
st->dirty |= ST_NEW_RASTERIZER;
}
}
/***********************************************************************
* Update all derived state:
*/
void st_validate_state( struct st_context *st, enum st_pipeline pipeline )
{
struct gl_context *ctx = st->ctx;
uint64_t dirty, pipeline_mask;
uint32_t dirty_lo, dirty_hi;
/* Get Mesa driver state. */
st->dirty |= st->ctx->NewDriverState & ST_ALL_STATES_MASK;
st->ctx->NewDriverState = 0;
/* Get pipeline state. */
switch (pipeline) {
case ST_PIPELINE_RENDER:
if (st->ctx->API == API_OPENGL_COMPAT)
check_attrib_edgeflag(st);
check_program_state(st);
st_manager_validate_framebuffers(st);
pipeline_mask = ST_PIPELINE_RENDER_STATE_MASK;
break;
case ST_PIPELINE_COMPUTE:
if (ctx->ComputeProgram._Current != &st->cp->Base)
st->dirty |= ST_NEW_COMPUTE_PROGRAM;
st->compute_shader_may_be_dirty = false;
pipeline_mask = ST_PIPELINE_COMPUTE_STATE_MASK;
break;
default:
unreachable("Invalid pipeline specified");
}
dirty = st->dirty & pipeline_mask;
if (!dirty)
return;
dirty_lo = dirty;
dirty_hi = dirty >> 32;
/* Update states.
*
* Don't use u_bit_scan64, it may be slower on 32-bit.
*/
while (dirty_lo)
atoms[u_bit_scan(&dirty_lo)]->update(st);
while (dirty_hi)
atoms[32 + u_bit_scan(&dirty_hi)]->update(st);
/* Clear the render or compute state bits. */
st->dirty &= ~pipeline_mask;
}
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