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/*
* Copyright 2001 by Alan Hourihane.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Alan Hourihane not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Alan Hourihane makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* Authors: Alan Hourihane, <alanh@tungstengraphics.com>
* Keith Whitwell, <keith@tungstengraphics.com>
*
* 3DLabs Gamma driver.
*/
#include "glheader.h"
#include "mtypes.h"
#include "imports.h"
#include "macros.h"
#include "colormac.h"
#include "swrast_setup/swrast_setup.h"
#include "tnl/t_context.h"
#include "tnl/tnl.h"
#include "gamma_context.h"
#include "gamma_vb.h"
#include "gamma_tris.h"
#define GAMMA_TEX0_BIT 0x1
#define GAMMA_RGBA_BIT 0x2
#define GAMMA_XYZW_BIT 0x4
#define GAMMA_PTEX_BIT 0x8
#define GAMMA_FOG_BIT 0x10
#define GAMMA_SPEC_BIT 0x20
#define GAMMA_MAX_SETUP 0x40
static struct {
void (*emit)( GLcontext *, GLuint, GLuint, void *, GLuint );
tnl_interp_func interp;
tnl_copy_pv_func copy_pv;
GLboolean (*check_tex_sizes)( GLcontext *ctx );
GLuint vertex_size;
GLuint vertex_format;
} setup_tab[GAMMA_MAX_SETUP];
#define TINY_VERTEX_FORMAT 1
#define NOTEX_VERTEX_FORMAT 2
#define TEX0_VERTEX_FORMAT 3
#define TEX1_VERTEX_FORMAT 0
#define PROJ_TEX1_VERTEX_FORMAT 0
#define TEX2_VERTEX_FORMAT 0
#define TEX3_VERTEX_FORMAT 0
#define PROJ_TEX3_VERTEX_FORMAT 0
#define DO_XYZW (IND & GAMMA_XYZW_BIT)
#define DO_RGBA (IND & GAMMA_RGBA_BIT)
#define DO_SPEC (IND & GAMMA_SPEC_BIT)
#define DO_FOG (IND & GAMMA_FOG_BIT)
#define DO_TEX0 (IND & GAMMA_TEX0_BIT)
#define DO_TEX1 0
#define DO_TEX2 0
#define DO_TEX3 0
#define DO_PTEX (IND & GAMMA_PTEX_BIT)
#define VERTEX gammaVertex
#define VERTEX_COLOR gamma_color_t
#define GET_VIEWPORT_MAT() 0
#define GET_TEXSOURCE(n) n
#define GET_VERTEX_FORMAT() GAMMA_CONTEXT(ctx)->vertex_format
#define GET_VERTEX_STORE() GAMMA_CONTEXT(ctx)->verts
#define GET_VERTEX_SIZE() GAMMA_CONTEXT(ctx)->vertex_size * sizeof(GLuint)
#define INVALIDATE_STORED_VERTICES()
#define HAVE_HW_VIEWPORT 1
#define HAVE_HW_DIVIDE 1
#define HAVE_RGBA_COLOR 0 /* we're BGRA */
#define HAVE_TINY_VERTICES 1
#define HAVE_NOTEX_VERTICES 1
#define HAVE_TEX0_VERTICES 1
#define HAVE_TEX1_VERTICES 0
#define HAVE_TEX2_VERTICES 0
#define HAVE_TEX3_VERTICES 0
#define HAVE_PTEX_VERTICES 1
#define PTEX_FALLBACK() /* never needed */
#define INTERP_VERTEX setup_tab[GAMMA_CONTEXT(ctx)->SetupIndex].interp
#define COPY_PV_VERTEX setup_tab[GAMMA_CONTEXT(ctx)->SetupIndex].copy_pv
/***********************************************************************
* Generate pv-copying and translation functions *
***********************************************************************/
#define TAG(x) gamma_##x
#include "tnl_dd/t_dd_vb.c"
/***********************************************************************
* Generate vertex emit and interp functions *
***********************************************************************/
#define IND (GAMMA_XYZW_BIT|GAMMA_RGBA_BIT)
#define TAG(x) x##_wg
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_XYZW_BIT|GAMMA_RGBA_BIT|GAMMA_SPEC_BIT)
#define TAG(x) x##_wgs
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_XYZW_BIT|GAMMA_RGBA_BIT|GAMMA_TEX0_BIT)
#define TAG(x) x##_wgt0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_XYZW_BIT|GAMMA_RGBA_BIT|GAMMA_TEX0_BIT|GAMMA_PTEX_BIT)
#define TAG(x) x##_wgpt0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_XYZW_BIT|GAMMA_RGBA_BIT|GAMMA_SPEC_BIT|GAMMA_TEX0_BIT)
#define TAG(x) x##_wgst0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_XYZW_BIT|GAMMA_RGBA_BIT|GAMMA_SPEC_BIT|GAMMA_TEX0_BIT|\
GAMMA_PTEX_BIT)
#define TAG(x) x##_wgspt0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_XYZW_BIT|GAMMA_RGBA_BIT|GAMMA_FOG_BIT)
#define TAG(x) x##_wgf
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_XYZW_BIT|GAMMA_RGBA_BIT|GAMMA_FOG_BIT|GAMMA_SPEC_BIT)
#define TAG(x) x##_wgfs
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_XYZW_BIT|GAMMA_RGBA_BIT|GAMMA_FOG_BIT|GAMMA_TEX0_BIT)
#define TAG(x) x##_wgft0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_XYZW_BIT|GAMMA_RGBA_BIT|GAMMA_FOG_BIT|GAMMA_TEX0_BIT|\
GAMMA_PTEX_BIT)
#define TAG(x) x##_wgfpt0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_XYZW_BIT|GAMMA_RGBA_BIT|GAMMA_FOG_BIT|GAMMA_SPEC_BIT|\
GAMMA_TEX0_BIT)
#define TAG(x) x##_wgfst0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_XYZW_BIT|GAMMA_RGBA_BIT|GAMMA_FOG_BIT|GAMMA_SPEC_BIT|\
GAMMA_TEX0_BIT|GAMMA_PTEX_BIT)
#define TAG(x) x##_wgfspt0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_TEX0_BIT)
#define TAG(x) x##_t0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_FOG_BIT)
#define TAG(x) x##_f
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_FOG_BIT|GAMMA_TEX0_BIT)
#define TAG(x) x##_ft0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_RGBA_BIT)
#define TAG(x) x##_g
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_RGBA_BIT|GAMMA_SPEC_BIT)
#define TAG(x) x##_gs
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_RGBA_BIT|GAMMA_TEX0_BIT)
#define TAG(x) x##_gt0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_RGBA_BIT|GAMMA_SPEC_BIT|GAMMA_TEX0_BIT)
#define TAG(x) x##_gst0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_RGBA_BIT|GAMMA_FOG_BIT)
#define TAG(x) x##_gf
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_RGBA_BIT|GAMMA_FOG_BIT|GAMMA_SPEC_BIT)
#define TAG(x) x##_gfs
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_RGBA_BIT|GAMMA_FOG_BIT|GAMMA_TEX0_BIT)
#define TAG(x) x##_gft0
#include "tnl_dd/t_dd_vbtmp.h"
#define IND (GAMMA_RGBA_BIT|GAMMA_FOG_BIT|GAMMA_SPEC_BIT|GAMMA_TEX0_BIT)
#define TAG(x) x##_gfst0
#include "tnl_dd/t_dd_vbtmp.h"
static void init_setup_tab( void )
{
init_wg();
init_wgs();
init_wgt0();
init_wgpt0();
init_wgst0();
init_wgspt0();
init_wgf();
init_wgfs();
init_wgft0();
init_wgfpt0();
init_wgfst0();
init_wgfspt0();
init_t0();
init_f();
init_ft0();
init_g();
init_gs();
init_gt0();
init_gst0();
init_gf();
init_gfs();
init_gft0();
init_gfst0();
}
void gammaCheckTexSizes( GLcontext *ctx )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
gammaContextPtr gmesa = GAMMA_CONTEXT( ctx );
if (!setup_tab[gmesa->SetupIndex].check_tex_sizes(ctx)) {
/* Invalidate stored verts
*/
gmesa->SetupNewInputs = ~0;
gmesa->SetupIndex |= GAMMA_PTEX_BIT;
if (!(ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
tnl->Driver.Render.Interp = setup_tab[gmesa->SetupIndex].interp;
tnl->Driver.Render.CopyPV = setup_tab[gmesa->SetupIndex].copy_pv;
}
}
}
void gammaBuildVertices( GLcontext *ctx,
GLuint start,
GLuint count,
GLuint newinputs )
{
gammaContextPtr gmesa = GAMMA_CONTEXT( ctx );
GLuint stride = gmesa->vertex_size * sizeof(int);
GLubyte *v = ((GLubyte *)gmesa->verts + (start * stride));
newinputs |= gmesa->SetupNewInputs;
gmesa->SetupNewInputs = 0;
if (!newinputs)
return;
if (newinputs & VERT_BIT_POS) {
setup_tab[gmesa->SetupIndex].emit( ctx, start, count, v, stride );
} else {
GLuint ind = 0;
if (newinputs & VERT_BIT_COLOR0)
ind |= GAMMA_RGBA_BIT;
if (newinputs & VERT_BIT_COLOR1)
ind |= GAMMA_SPEC_BIT;
if (newinputs & VERT_BIT_TEX0)
ind |= GAMMA_TEX0_BIT;
if (newinputs & VERT_BIT_FOG)
ind |= GAMMA_FOG_BIT;
if (gmesa->SetupIndex & GAMMA_PTEX_BIT)
ind = ~0;
ind &= gmesa->SetupIndex;
if (ind) {
setup_tab[ind].emit( ctx, start, count, v, stride );
}
}
}
void gammaChooseVertexState( GLcontext *ctx )
{
gammaContextPtr gmesa = GAMMA_CONTEXT( ctx );
TNLcontext *tnl = TNL_CONTEXT(ctx);
GLuint ind = GAMMA_XYZW_BIT|GAMMA_RGBA_BIT;
if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR)
ind |= GAMMA_SPEC_BIT;
if (ctx->Fog.Enabled)
ind |= GAMMA_FOG_BIT;
if (ctx->Texture.Unit[0]._ReallyEnabled) {
_tnl_need_projected_coords( ctx, GL_FALSE );
ind |= GAMMA_TEX0_BIT;
} else
_tnl_need_projected_coords( ctx, GL_FALSE );
gmesa->SetupIndex = ind;
if (setup_tab[ind].vertex_format != gmesa->vertex_format) {
gmesa->vertex_format = setup_tab[ind].vertex_format;
gmesa->vertex_size = setup_tab[ind].vertex_size;
}
if (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED)) {
tnl->Driver.Render.Interp = gamma_interp_extras;
tnl->Driver.Render.CopyPV = gamma_copy_pv_extras;
} else {
tnl->Driver.Render.Interp = setup_tab[ind].interp;
tnl->Driver.Render.CopyPV = setup_tab[ind].copy_pv;
}
}
void gammaInitVB( GLcontext *ctx )
{
gammaContextPtr gmesa = GAMMA_CONTEXT(ctx);
GLuint size = TNL_CONTEXT(ctx)->vb.Size;
gmesa->verts = (GLubyte *)ALIGN_MALLOC(size * 4 * 16, 32);
{
static int firsttime = 1;
if (firsttime) {
init_setup_tab();
firsttime = 0;
gmesa->vertex_size = 16; /* FIXME - only one vertex setup */
}
}
}
void gammaFreeVB( GLcontext *ctx )
{
gammaContextPtr gmesa = GAMMA_CONTEXT(ctx);
if (gmesa->verts) {
ALIGN_FREE(gmesa->verts);
gmesa->verts = 0;
}
}
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