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/* #include "mgapipeline.h" */
#include <stdio.h>
#include "mgavb.h"
#include "mgadd.h"
#include "mgalib.h"
#include "mgatris.h"
#include "mgapipeline.h"
#include "fog.h"
static struct gl_pipeline_stage mga_fast_stage = {
"MGA fast path",
(PIPE_OP_VERT_XFORM|PIPE_OP_RAST_SETUP_0|
PIPE_OP_RAST_SETUP_1|PIPE_OP_RENDER),
PIPE_PRECALC,
0, 0, 0, 0, 0, 0, 0, 0, 0,
mgaDDFastPath
};
#define ILLEGAL_ENABLES (TEXTURE0_3D| \
TEXTURE1_3D| \
ENABLE_TEXMAT0 | \
ENABLE_TEXMAT1 | \
ENABLE_TEXGEN0 | \
ENABLE_TEXGEN1 | \
ENABLE_USERCLIP | \
ENABLE_LIGHT | \
ENABLE_FOG)
/* The driver gets first shot at building the pipeline - make some
* quick tests to see if we can use the fast path.
*/
GLboolean mgaDDBuildPrecalcPipeline( GLcontext *ctx )
{
struct gl_pipeline *pipe = &ctx->CVA.pre;
mgaContextPtr mmesa = MGA_CONTEXT( ctx );
if (mmesa->renderindex == 0 &&
(ctx->Enabled & ILLEGAL_ENABLES) == 0 &&
(ctx->Array.Flags & (VERT_OBJ_234|
VERT_TEX0_4|
VERT_TEX1_4|
VERT_ELT)) == (VERT_OBJ_23|VERT_ELT))
{
pipe->stages[0] = &mga_fast_stage;
pipe->stages[1] = 0;
pipe->new_inputs = ctx->RenderFlags & VERT_DATA;
pipe->ops = pipe->stages[0]->ops;
mmesa->using_fast_path = 1;
return 1;
}
if (mmesa->using_fast_path)
{
mmesa->using_fast_path = 0;
ctx->CVA.VB->ClipOrMask = 0;
ctx->CVA.VB->ClipAndMask = CLIP_ALL_BITS;
ctx->Array.NewArrayState |= ctx->Array.Summary;
return 0;
}
return 0;
}
/* Still do the normal fixup and copy-to-current, so this isn't so
* bad.
*/
#define ILLEGAL_INPUTS_IMM (VERT_OBJ_4| \
VERT_TEX0_4| \
VERT_TEX1_4| \
VERT_MATERIAL)
static void mgaDDCheckRasterSetup( GLcontext *ctx, struct gl_pipeline_stage *d )
{
d->type = PIPE_IMMEDIATE|PIPE_PRECALC;
d->inputs = ctx->RenderFlags;
/* MGA requires an extra input:
*/
if (ctx->FogMode == FOG_FRAGMENT)
d->inputs |= VERT_FOG_COORD;
d->outputs = VERT_SETUP_FULL;
if (ctx->IndirectTriangles & DD_SW_SETUP)
d->type = PIPE_IMMEDIATE;
}
GLuint mgaDDRegisterPipelineStages( struct gl_pipeline_stage *out,
const struct gl_pipeline_stage *in,
GLuint nr )
{
GLuint i, o;
for (i = o = 0 ; i < nr ; i++) {
switch (in[i].ops) {
/* Completely replace Mesa's fog processing to generate fog
* coordinates instead of messing with colors.
*/
case PIPE_OP_FOG:
out[o] = gl_fog_coord_stage;
o++;
break;
case PIPE_OP_RAST_SETUP_0:
out[o] = in[i];
out[o].cva_state_change = NEW_LIGHTING|NEW_TEXTURING|NEW_RASTER_OPS;
out[o].state_change = ~0;
out[o].check = mgaDDCheckPartialRasterSetup;
out[o].run = mgaDDPartialRasterSetup;
o++;
break;
case PIPE_OP_RAST_SETUP_0|PIPE_OP_RAST_SETUP_1:
out[o] = in[i];
out[o].check = mgaDDCheckRasterSetup;
out[o].run = mgaDDDoRasterSetup;
o++;
break;
default:
out[o++] = in[i];
break;
}
}
return o;
}
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