diff options
Diffstat (limited to 'src/mesa/shader/program.c')
| -rw-r--r-- | src/mesa/shader/program.c | 47 |
1 files changed, 21 insertions, 26 deletions
diff --git a/src/mesa/shader/program.c b/src/mesa/shader/program.c index 52476eddd4c..681584941e7 100644 --- a/src/mesa/shader/program.c +++ b/src/mesa/shader/program.c @@ -45,7 +45,7 @@ static const char * make_state_string(const GLint stateTokens[6]); -static GLuint +static GLbitfield make_state_flags(const GLint state[]); @@ -485,8 +485,7 @@ _mesa_add_state_reference(struct gl_program_parameter_list *paramList, paramList->Parameters[index].StateIndexes[i] = (enum state_index) stateTokens[i]; } - paramList->StateFlags |= - make_state_flags(stateTokens); + paramList->StateFlags |= make_state_flags(stateTokens); } /* free name string here since we duplicated it in add_parameter() */ @@ -580,37 +579,29 @@ _mesa_fetch_state(GLcontext *ctx, const enum state_index state[], { /* state[1] is either 0=front or 1=back side */ const GLuint face = (GLuint) state[1]; + const struct gl_material *mat = &ctx->Light.Material; + ASSERT(face == 0 || face == 1); + /* we rely on tokens numbered so that _BACK_ == _FRONT_+ 1 */ + ASSERT(MAT_ATTRIB_FRONT_AMBIENT + 1 == MAT_ATTRIB_BACK_AMBIENT); + /* XXX we could get rid of this switch entirely with a little + * work in arbprogparse.c's parse_state_single_item(). + */ /* state[2] is the material attribute */ switch (state[2]) { case STATE_AMBIENT: - if (face == 0) - COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_AMBIENT]); - else - COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_AMBIENT]); + COPY_4V(value, mat->Attrib[MAT_ATTRIB_FRONT_AMBIENT + face]); return; case STATE_DIFFUSE: - if (face == 0) - COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE]); - else - COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE]); + COPY_4V(value, mat->Attrib[MAT_ATTRIB_FRONT_DIFFUSE + face]); return; case STATE_SPECULAR: - if (face == 0) - COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SPECULAR]); - else - COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_SPECULAR]); + COPY_4V(value, mat->Attrib[MAT_ATTRIB_FRONT_SPECULAR + face]); return; case STATE_EMISSION: - if (face == 0) - COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_EMISSION]); - else - COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_EMISSION]); + COPY_4V(value, mat->Attrib[MAT_ATTRIB_FRONT_EMISSION + face]); return; case STATE_SHININESS: - if (face == 0) - value[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SHININESS][0]; - else - value[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_SHININESS][0]; + value[0] = mat->Attrib[MAT_ATTRIB_FRONT_SHININESS + face][0]; value[1] = 0.0F; value[2] = 0.0F; value[3] = 1.0F; @@ -941,10 +932,14 @@ _mesa_fetch_state(GLcontext *ctx, const enum state_index state[], /** - * Return a bit mask of the Mesa state flags under which a parameter's - * value might change. + * Return a bitmask of the Mesa state flags (_NEW_* values) which would + * indicate that the given context state may have changed. + * The bitmask is used during validation to determine if we need to update + * vertex/fragment program parameters (like "state.material.color") when + * some GL state has changed. */ -static GLuint make_state_flags(const GLint state[]) +static GLbitfield +make_state_flags(const GLint state[]) { switch (state[0]) { case STATE_MATERIAL: |