/* Material
*/
void GLAPIENTRY _mesa_noop_Materialfv( GLenum face, GLenum pname, const GLfloat *params )
{
GET_CURRENT_CONTEXT(ctx);
GLint i, nr;
struct gl_material *mat = &ctx->Light.Material;
GLuint bitmask = _mesa_material_bitmask( ctx, face, pname, ~0,
"_mesa_noop_Materialfv" );
if (ctx->Light.ColorMaterialEnabled)
bitmask &= ~ctx->Light.ColorMaterialBitmask;
if (bitmask == 0)
return;
switch (pname) {
case GL_SHININESS: nr = 1; break;
case GL_COLOR_INDEXES: nr = 3; break;
default: nr = 4 ; break;
}
for (i = 0 ; i < MAT_ATTRIB_MAX ; i++)
if (bitmask & (1<<i))
COPY_SZ_4V( mat->Attrib[i], nr, params );
_mesa_update_material( ctx, bitmask );
}
/**
* Copy the last specified normal, color, texcoord, edge flag, etc
* from the immediate struct into the ctx->Current attribute group.
*/
void _tnl_copy_to_current( GLcontext *ctx, struct immediate *IM,
GLuint flag, GLuint count )
{
if (MESA_VERBOSE&VERBOSE_IMMEDIATE)
_tnl_print_vert_flags("copy to current", flag);
/* XXX should be able to replace these conditions with a loop over
* the 16 vertex attributes.
*/
if (flag & VERT_BIT_NORMAL)
COPY_4FV( ctx->Current.Attrib[VERT_ATTRIB_NORMAL],
IM->Attrib[VERT_ATTRIB_NORMAL][count]);
if (flag & VERT_BIT_COLOR0) {
COPY_4FV(ctx->Current.Attrib[VERT_ATTRIB_COLOR0],
IM->Attrib[VERT_ATTRIB_COLOR0][count]);
if (ctx->Light.ColorMaterialEnabled) {
_mesa_update_color_material( ctx,
ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );
TNL_CONTEXT(ctx)->Driver.NotifyMaterialChange( ctx );
}
}
if (flag & VERT_BIT_COLOR1)
COPY_4FV(ctx->Current.Attrib[VERT_ATTRIB_COLOR1],
IM->Attrib[VERT_ATTRIB_COLOR1][count]);
if (flag & VERT_BIT_FOG)
ctx->Current.Attrib[VERT_ATTRIB_FOG][0] = IM->Attrib[VERT_ATTRIB_FOG][count][0];
if (flag & VERT_BIT_SIX)
COPY_4FV(ctx->Current.Attrib[VERT_ATTRIB_SIX], IM->Attrib[VERT_ATTRIB_SIX][count]);
if (flag & VERT_BIT_SEVEN)
COPY_4FV(ctx->Current.Attrib[VERT_ATTRIB_SEVEN], IM->Attrib[VERT_ATTRIB_SEVEN][count]);
if (flag & VERT_BITS_TEX_ANY) {
GLuint i;
for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) {
if (flag & VERT_BIT_TEX(i)) {
COPY_4FV( ctx->Current.Attrib[VERT_ATTRIB_TEX0 + i],
IM->Attrib[VERT_ATTRIB_TEX0 + i][count]);
}
}
}
if (flag & VERT_BIT_INDEX)
ctx->Current.Index = IM->Index[count];
if (flag & VERT_BIT_EDGEFLAG)
ctx->Current.EdgeFlag = IM->EdgeFlag[count];
if (flag & VERT_BIT_MATERIAL) {
_mesa_update_material( ctx,
IM->Material[IM->LastMaterial],
IM->MaterialOrMask );
TNL_CONTEXT(ctx)->Driver.NotifyMaterialChange( ctx );
}
}
/**
* Prepare things prior to running the lighting stage.
* Return number of material attributes which will track vertex color.
*/
static GLuint
prepare_materials(GLcontext *ctx,
struct vertex_buffer *VB, struct light_stage_data *store)
{
GLuint i;
store->mat_count = 0;
store->mat_bitmask = 0;
/* Examine the ColorMaterialBitmask to determine which materials
* track vertex color. Override the material attribute's pointer
* with the color pointer for each one.
*/
if (ctx->Light.ColorMaterialEnabled) {
const GLuint bitmask = ctx->Light.ColorMaterialBitmask;
for (i = 0 ; i < MAT_ATTRIB_MAX ; i++)
if (bitmask & (1<<i))
VB->AttribPtr[_TNL_ATTRIB_MAT_FRONT_AMBIENT + i] = VB->ColorPtr[0];
}
/* Now, for each material attribute that's tracking vertex color, save
* some values (ptr, stride, size, current) that we'll need in
* update_materials(), above, that'll actually copy the vertex color to
* the material attribute(s).
*/
for (i = _TNL_ATTRIB_MAT_FRONT_AMBIENT ; i < _TNL_ATTRIB_INDEX ; i++) {
if (VB->AttribPtr[i]->stride) {
const GLuint j = store->mat_count++;
const GLuint attr = i - _TNL_ATTRIB_MAT_FRONT_AMBIENT;
store->mat[j].ptr = VB->AttribPtr[i]->start;
store->mat[j].stride = VB->AttribPtr[i]->stride;
store->mat[j].size = VB->AttribPtr[i]->size;
store->mat[j].current = ctx->Light.Material.Attrib[attr];
store->mat_bitmask |= (1<<attr);
}
}
/* FIXME: Is this already done?
*/
_mesa_update_material( ctx, ~0 );
_mesa_validate_all_lighting_tables( ctx );
return store->mat_count;
}
/**
* In the case of colormaterial, the effected material attributes
* should already have been bound to point to the incoming color data,
* prior to running the pipeline.
* This function copies the vertex's color to the material attributes
* which are tracking glColor.
* It's called per-vertex in the lighting loop.
*/
static void
update_materials(GLcontext *ctx, struct light_stage_data *store)
{
GLuint i;
for (i = 0 ; i < store->mat_count ; i++) {
/* update the material */
COPY_CLEAN_4V(store->mat[i].current, store->mat[i].size, store->mat[i].ptr);
/* increment src vertex color pointer */
STRIDE_F(store->mat[i].ptr, store->mat[i].stride);
}
/* recompute derived light/material values */
_mesa_update_material( ctx, store->mat_bitmask );
/* XXX we should only call this if we're tracking/changing the specular
* exponent.
*/
_mesa_validate_all_lighting_tables( ctx );
}
