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add missing code for newer STATE_INTERNAL items

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This commit is contained in:
Brian
2007-02-24 17:00:50 -07:00
parent efcfdbd4d1
commit fbc4929185
1 changed files with 44 additions and 16 deletions
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60
src/mesa/shader/prog_statevars.c
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@@ -396,23 +396,51 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
return;
case STATE_INTERNAL:
{
switch (state[1]) {
case STATE_TEXRECT_SCALE: {
const int unit = (int) state[2];
const struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;
if (texObj) {
struct gl_texture_image *texImage = texObj->Image[0][0];
ASSIGN_4V(value, 1.0 / texImage->Width, 1.0 / texImage->Height, 0, 1);
}
break;
}
default:
/* unknown state indexes are silently ignored
* should be handled by the driver.
*/
return;
switch (state[1]) {
case STATE_NORMAL_SCALE:
ASSIGN_4V(value, ctx->_ModelViewInvScale, 0, 0, 1);
return;
case STATE_TEXRECT_SCALE:
{
const int unit = (int) state[2];
const struct gl_texture_object *texObj
= ctx->Texture.Unit[unit]._Current;
if (texObj) {
struct gl_texture_image *texImage = texObj->Image[0][0];
ASSIGN_4V(value, 1.0 / texImage->Width,
1.0 / texImage->Height,
0.0, 1.0);
}
}
return;
case STATE_FOG_PARAMS_OPTIMIZED:
/* for simpler per-vertex/pixel fog calcs. POW (for EXP/EXP2 fog)
* might be more expensive than EX2 on some hw, plus it needs
* another constant (e) anyway. Linear fog can now be done with a
* single MAD.
* linear: fogcoord * -1/(end-start) + end/(end-start)
* exp: 2^-(density/ln(2) * fogcoord)
* exp2: 2^-((density/(ln(2)^2) * fogcoord)^2)
*/
value[0] = -1.0F / (ctx->Fog.End - ctx->Fog.Start);
value[1] = ctx->Fog.End / (ctx->Fog.End - ctx->Fog.Start);
value[2] = ctx->Fog.Density * ONE_DIV_LN2;
value[3] = ctx->Fog.Density * ONE_DIV_SQRT_LN2;
return;
case STATE_SPOT_DIR_NORMALIZED: {
/* here, state[2] is the light number */
/* pre-normalize spot dir */
const GLuint ln = (GLuint) state[2];
COPY_3V(value, ctx->Light.Light[ln].EyeDirection);
NORMALIZE_3FV(value);
value[3] = ctx->Light.Light[ln]._CosCutoff;
return;
}
default:
/* unknown state indexes are silently ignored
* should be handled by the driver.
*/
return;
}
return;