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-rw-r--r--src/mesa/drivers/dri/i915/i915_state.c47
-rw-r--r--src/mesa/drivers/dri/i915tex/i915_state.c56
2 files changed, 48 insertions, 55 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_state.c b/src/mesa/drivers/dri/i915/i915_state.c
index 5e00e65..0d5ca32 100644
--- a/src/mesa/drivers/dri/i915/i915_state.c
+++ b/src/mesa/drivers/dri/i915/i915_state.c
@@ -541,17 +541,19 @@ void i915_update_fog( GLcontext *ctx )
else {
enabled = ctx->Fog.Enabled;
mode = ctx->Fog.Mode;
-
- try_pixel_fog = (ctx->Fog.FogCoordinateSource == GL_FRAGMENT_DEPTH_EXT &&
- ctx->Hint.Fog == GL_NICEST &&
- 0); /* XXX - DISABLE -- Need ortho fallback */
+#if 0
+ /* XXX - DISABLED -- Need ortho fallback */
+ try_pixel_fog = (ctx->Fog.FogCoordinateSource == GL_FRAGMENT_DEPTH_EXT
+ &&ctx->Hint.Fog == GL_NICEST);
+#else
+ try_pixel_fog = 0;
+#endif
}
if (!enabled) {
i915->vertex_fog = I915_FOG_NONE;
}
else if (try_pixel_fog) {
-
I915_STATECHANGE(i915, I915_UPLOAD_FOG);
i915->state.Fog[I915_FOGREG_MODE1] &= ~FMC1_FOGFUNC_MASK;
i915->vertex_fog = I915_FOG_PIXEL;
@@ -567,8 +569,8 @@ void i915_update_fog( GLcontext *ctx )
i915->vertex_fog = I915_FOG_VERTEX;
}
else {
- GLfloat c1 = ctx->Fog.End/(ctx->Fog.End-ctx->Fog.Start);
- GLfloat c2 = 1.0/(ctx->Fog.End-ctx->Fog.Start);
+ GLfloat c2 = 1.0 / (ctx->Fog.End - ctx->Fog.Start);
+ GLfloat c1 = ctx->Fog.End * c2;
i915->state.Fog[I915_FOGREG_MODE1] &= ~FMC1_C1_MASK;
i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_PIXEL_LINEAR;
@@ -576,10 +578,11 @@ void i915_update_fog( GLcontext *ctx )
((GLuint)(c1 * FMC1_C1_ONE)) & FMC1_C1_MASK;
if (i915->state.Fog[I915_FOGREG_MODE1] & FMC1_FOGINDEX_Z) {
- i915->state.Fog[I915_FOGREG_MODE2] = (GLuint)(c2 * FMC2_C2_ONE);
+ i915->state.Fog[I915_FOGREG_MODE2]
+ = (GLuint)(c2 * FMC2_C2_ONE);
}
else {
- union { float f; int i; } fi;
+ fi_type fi;
fi.f = c2;
i915->state.Fog[I915_FOGREG_MODE2] = fi.i;
}
@@ -602,24 +605,22 @@ void i915_update_fog( GLcontext *ctx )
i915->vertex_fog = I915_FOG_VERTEX;
}
- {
- I915_STATECHANGE(i915, I915_UPLOAD_CTX);
- I915_ACTIVESTATE(i915, I915_UPLOAD_FOG, enabled);
- if (enabled)
- i915->state.Ctx[I915_CTXREG_LIS5] |= S5_FOG_ENABLE;
- else
- i915->state.Ctx[I915_CTXREG_LIS5] &= ~S5_FOG_ENABLE;
- }
+ I915_STATECHANGE(i915, I915_UPLOAD_CTX);
+ I915_ACTIVESTATE(i915, I915_UPLOAD_FOG, enabled);
+ if (enabled)
+ i915->state.Ctx[I915_CTXREG_LIS5] |= S5_FOG_ENABLE;
+ else
+ i915->state.Ctx[I915_CTXREG_LIS5] &= ~S5_FOG_ENABLE;
- /* always enbale pixel fog
- * vertex fog use precaculted fog coord will conflict with appended
- * fog program
+ /* Always enable pixel fog. Vertex fog using fog coord will conflict
+ * with fog code appended onto fragment program.
*/
_tnl_allow_vertex_fog( ctx, 0 );
_tnl_allow_pixel_fog( ctx, 1 );
}
-static void i915Fogfv(GLcontext *ctx, GLenum pname, const GLfloat *param)
+static void
+i915Fogfv(GLcontext *ctx, GLenum pname, const GLfloat *param)
{
i915ContextPtr i915 = I915_CONTEXT(ctx);
@@ -634,8 +635,8 @@ static void i915Fogfv(GLcontext *ctx, GLenum pname, const GLfloat *param)
I915_STATECHANGE(i915, I915_UPLOAD_FOG);
if (i915->state.Fog[I915_FOGREG_MODE1] & FMC1_FOGINDEX_Z) {
- i915->state.Fog[I915_FOGREG_MODE3] = (GLuint)(ctx->Fog.Density *
- FMC3_D_ONE);
+ i915->state.Fog[I915_FOGREG_MODE3]
+ = (GLuint)(ctx->Fog.Density * FMC3_D_ONE);
}
else {
union { float f; int i; } fi;
diff --git a/src/mesa/drivers/dri/i915tex/i915_state.c b/src/mesa/drivers/dri/i915tex/i915_state.c
index 1fafadc..d3217fa 100644
--- a/src/mesa/drivers/dri/i915tex/i915_state.c
+++ b/src/mesa/drivers/dri/i915tex/i915_state.c
@@ -563,7 +563,6 @@ i915_update_fog(GLcontext * ctx)
if (ctx->FragmentProgram._Active) {
/* Pull in static fog state from program */
-
mode = ctx->FragmentProgram._Current->FogOption;
enabled = (mode != GL_NONE);
try_pixel_fog = 0;
@@ -571,15 +570,19 @@ i915_update_fog(GLcontext * ctx)
else {
enabled = ctx->Fog.Enabled;
mode = ctx->Fog.Mode;
-
- try_pixel_fog = (ctx->Fog.FogCoordinateSource == GL_FRAGMENT_DEPTH_EXT && ctx->Hint.Fog == GL_NICEST && 0); /* XXX - DISABLE -- Need ortho fallback */
+#if 0
+ /* XXX - DISABLED -- Need ortho fallback */
+ try_pixel_fog = (ctx->Fog.FogCoordinateSource == GL_FRAGMENT_DEPTH_EXT
+ && ctx->Hint.Fog == GL_NICEST);
+#else
+ try_pixel_fog = 0;
+#endif
}
if (!enabled) {
i915->vertex_fog = I915_FOG_NONE;
}
else if (try_pixel_fog) {
-
I915_STATECHANGE(i915, I915_UPLOAD_FOG);
i915->state.Fog[I915_FOGREG_MODE1] &= ~FMC1_FOGFUNC_MASK;
i915->vertex_fog = I915_FOG_PIXEL;
@@ -591,12 +594,13 @@ i915_update_fog(GLcontext * ctx)
* either fallback or append fog instructions to end of
* program in the case of linear fog.
*/
+ printf("vertex fog!\n");
i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_VERTEX;
i915->vertex_fog = I915_FOG_VERTEX;
}
else {
- GLfloat c1 = ctx->Fog.End / (ctx->Fog.End - ctx->Fog.Start);
GLfloat c2 = 1.0 / (ctx->Fog.End - ctx->Fog.Start);
+ GLfloat c1 = ctx->Fog.End * c2;
i915->state.Fog[I915_FOGREG_MODE1] &= ~FMC1_C1_MASK;
i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_PIXEL_LINEAR;
@@ -604,15 +608,11 @@ i915_update_fog(GLcontext * ctx)
((GLuint) (c1 * FMC1_C1_ONE)) & FMC1_C1_MASK;
if (i915->state.Fog[I915_FOGREG_MODE1] & FMC1_FOGINDEX_Z) {
- i915->state.Fog[I915_FOGREG_MODE2] =
- (GLuint) (c2 * FMC2_C2_ONE);
+ i915->state.Fog[I915_FOGREG_MODE2]
+ = (GLuint) (c2 * FMC2_C2_ONE);
}
else {
- union
- {
- float f;
- int i;
- } fi;
+ fi_type fi;
fi.f = c2;
i915->state.Fog[I915_FOGREG_MODE2] = fi.i;
}
@@ -628,26 +628,22 @@ i915_update_fog(GLcontext * ctx)
break;
}
}
- else { /* if (i915->vertex_fog != I915_FOG_VERTEX) */
-
+ else { /* if (i915->vertex_fog != I915_FOG_VERTEX) */
I915_STATECHANGE(i915, I915_UPLOAD_FOG);
i915->state.Fog[I915_FOGREG_MODE1] &= ~FMC1_FOGFUNC_MASK;
i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_VERTEX;
i915->vertex_fog = I915_FOG_VERTEX;
}
- {
- I915_STATECHANGE(i915, I915_UPLOAD_CTX);
- I915_ACTIVESTATE(i915, I915_UPLOAD_FOG, enabled);
- if (enabled)
- i915->state.Ctx[I915_CTXREG_LIS5] |= S5_FOG_ENABLE;
- else
- i915->state.Ctx[I915_CTXREG_LIS5] &= ~S5_FOG_ENABLE;
- }
+ I915_STATECHANGE(i915, I915_UPLOAD_CTX);
+ I915_ACTIVESTATE(i915, I915_UPLOAD_FOG, enabled);
+ if (enabled)
+ i915->state.Ctx[I915_CTXREG_LIS5] |= S5_FOG_ENABLE;
+ else
+ i915->state.Ctx[I915_CTXREG_LIS5] &= ~S5_FOG_ENABLE;
- /* always enbale pixel fog
- * vertex fog use precaculted fog coord will conflict with appended
- * fog program
+ /* Always enable pixel fog. Vertex fog using fog coord will conflict
+ * with fog code appended onto fragment program.
*/
_tnl_allow_vertex_fog( ctx, 0 );
_tnl_allow_pixel_fog( ctx, 1 );
@@ -669,15 +665,11 @@ i915Fogfv(GLcontext * ctx, GLenum pname, const GLfloat * param)
I915_STATECHANGE(i915, I915_UPLOAD_FOG);
if (i915->state.Fog[I915_FOGREG_MODE1] & FMC1_FOGINDEX_Z) {
- i915->state.Fog[I915_FOGREG_MODE3] = (GLuint) (ctx->Fog.Density *
- FMC3_D_ONE);
+ i915->state.Fog[I915_FOGREG_MODE3] =
+ (GLuint) (ctx->Fog.Density * FMC3_D_ONE);
}
else {
- union
- {
- float f;
- int i;
- } fi;
+ fi_type fi;
fi.f = ctx->Fog.Density;
i915->state.Fog[I915_FOGREG_MODE3] = fi.i;
}
generated by cgit v1.1 at 2024-12-27 07:42:19 +0000