summaryrefslogtreecommitdiff
path: root/src/mesa/shader
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/shader')
-rw-r--r--src/mesa/shader/prog_statevars.c118
1 files changed, 67 insertions, 51 deletions
diff --git a/src/mesa/shader/prog_statevars.c b/src/mesa/shader/prog_statevars.c
index 9c155fbe07..b93e987f04 100644
--- a/src/mesa/shader/prog_statevars.c
+++ b/src/mesa/shader/prog_statevars.c
@@ -359,10 +359,10 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
switch (state[1]) {
case STATE_ENV:
COPY_4V(value, ctx->FragmentProgram.Parameters[idx]);
- break;
+ return;
case STATE_LOCAL:
COPY_4V(value, ctx->FragmentProgram.Current->Base.LocalParams[idx]);
- break;
+ return;
default:
_mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()");
return;
@@ -378,10 +378,10 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
switch (state[1]) {
case STATE_ENV:
COPY_4V(value, ctx->VertexProgram.Parameters[idx]);
- break;
+ return;
case STATE_LOCAL:
COPY_4V(value, ctx->VertexProgram.Current->Base.LocalParams[idx]);
- break;
+ return;
default:
_mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()");
return;
@@ -395,11 +395,12 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
case STATE_INTERNAL:
switch (state[1]) {
- case STATE_CURRENT_ATTRIB: {
- const GLuint idx = (GLuint) state[2];
- COPY_4V(value, ctx->Current.Attrib[idx]);
+ case STATE_CURRENT_ATTRIB:
+ {
+ const GLuint idx = (GLuint) state[2];
+ COPY_4V(value, ctx->Current.Attrib[idx]);
+ }
return;
- }
case STATE_NORMAL_SCALE:
ASSIGN_4V(value,
@@ -408,19 +409,25 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
ctx->_ModelViewInvScale,
1);
return;
+
case STATE_TEXRECT_SCALE:
+ /* Value = { 1/texWidth, 1/texHeight, 0, 1 }.
+ * Used to convert unnormalized texcoords to normalized texcoords.
+ */
{
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, (GLfloat) (1.0 / texImage->Width),
- (GLfloat)(1.0 / texImage->Height),
+ ASSIGN_4V(value,
+ (GLfloat) (1.0 / texImage->Width),
+ (GLfloat) (1.0 / texImage->Height),
0.0f, 1.0f);
}
}
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
@@ -437,62 +444,69 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
value[3] = (GLfloat)(ctx->Fog.Density * ONE_DIV_SQRT_LN2);
return;
- case STATE_LIGHT_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]._NormDirection);
- value[3] = ctx->Light.Light[ln]._CosCutoff;
+ case STATE_LIGHT_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]._NormDirection);
+ value[3] = ctx->Light.Light[ln]._CosCutoff;
+ }
return;
- }
- case STATE_LIGHT_POSITION: {
- const GLuint ln = (GLuint) state[2];
- COPY_4V(value, ctx->Light.Light[ln]._Position);
+ case STATE_LIGHT_POSITION:
+ {
+ const GLuint ln = (GLuint) state[2];
+ COPY_4V(value, ctx->Light.Light[ln]._Position);
+ }
return;
- }
- case STATE_LIGHT_POSITION_NORMALIZED: {
- const GLuint ln = (GLuint) state[2];
- COPY_4V(value, ctx->Light.Light[ln]._Position);
- NORMALIZE_3FV( value );
+ case STATE_LIGHT_POSITION_NORMALIZED:
+ {
+ const GLuint ln = (GLuint) state[2];
+ COPY_4V(value, ctx->Light.Light[ln]._Position);
+ NORMALIZE_3FV( value );
+ }
return;
- }
- case STATE_LIGHT_HALF_VECTOR: {
- const GLuint ln = (GLuint) state[2];
- GLfloat p[3];
- /* Compute infinite half angle vector:
- * halfVector = normalize(normalize(lightPos) + (0, 0, 1))
- * light.EyePosition.w should be 0 for infinite lights.
- */
- COPY_3V(p, ctx->Light.Light[ln]._Position);
- NORMALIZE_3FV(p);
- ADD_3V(value, p, ctx->_EyeZDir);
- NORMALIZE_3FV(value);
- value[3] = 1.0;
+ case STATE_LIGHT_HALF_VECTOR:
+ {
+ const GLuint ln = (GLuint) state[2];
+ GLfloat p[3];
+ /* Compute infinite half angle vector:
+ * halfVector = normalize(normalize(lightPos) + (0, 0, 1))
+ * light.EyePosition.w should be 0 for infinite lights.
+ */
+ COPY_3V(p, ctx->Light.Light[ln]._Position);
+ NORMALIZE_3FV(p);
+ ADD_3V(value, p, ctx->_EyeZDir);
+ NORMALIZE_3FV(value);
+ value[3] = 1.0;
+ }
return;
- }
-
case STATE_PT_SCALE:
value[0] = ctx->Pixel.RedScale;
value[1] = ctx->Pixel.GreenScale;
value[2] = ctx->Pixel.BlueScale;
value[3] = ctx->Pixel.AlphaScale;
- break;
+ return;
+
case STATE_PT_BIAS:
value[0] = ctx->Pixel.RedBias;
value[1] = ctx->Pixel.GreenBias;
value[2] = ctx->Pixel.BlueBias;
value[3] = ctx->Pixel.AlphaBias;
- break;
+ return;
+
case STATE_PCM_SCALE:
COPY_4V(value, ctx->Pixel.PostColorMatrixScale);
- break;
+ return;
+
case STATE_PCM_BIAS:
COPY_4V(value, ctx->Pixel.PostColorMatrixBias);
- break;
+ return;
+
case STATE_SHADOW_AMBIENT:
{
const int unit = (int) state[2];
@@ -506,6 +520,7 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
}
}
return;
+
case STATE_FB_SIZE:
value[0] = (GLfloat) (ctx->DrawBuffer->Width - 1);
value[1] = (GLfloat) (ctx->DrawBuffer->Height - 1);
@@ -522,7 +537,8 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
value[2] = 0.0;
value[3] = 0.0;
}
- break;
+ return;
+
case STATE_ROT_MATRIX_1:
{
const int unit = (int) state[2];
@@ -532,14 +548,14 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
value[2] = 0.0;
value[3] = 0.0;
}
- break;
+ return;
- /* XXX: make sure new tokens added here are also handled in the
- * _mesa_program_state_flags() switch, below.
- */
+ /* XXX: make sure new tokens added here are also handled in the
+ * _mesa_program_state_flags() switch, below.
+ */
default:
- /* unknown state indexes are silently ignored
- * should be handled by the driver.
+ /* Unknown state indexes are silently ignored here.
+ * Drivers may do something special.
*/
return;
}
generated by cgit v1.2.3 (git 2.51.0) at 2025-11-04 00:53:28 +0000