/* Called in place of do_lighting when the light table may have changed.
*/
static void validate_lighting( GLcontext *ctx,
struct tnl_pipeline_stage *stage )
{
light_func *tab;
if (ctx->ShaderObjects._VertexShaderPresent)
return;
if (!ctx->Light.Enabled || ctx->VertexProgram._Enabled)
return;
if (ctx->Visual.rgbMode) {
if (ctx->Light._NeedVertices) {
if (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)
tab = _tnl_light_spec_tab;
else
tab = _tnl_light_tab;
}
else {
if (ctx->Light.EnabledList.next == ctx->Light.EnabledList.prev)
tab = _tnl_light_fast_single_tab;
else
tab = _tnl_light_fast_tab;
}
}
else
tab = _tnl_light_ci_tab;
LIGHT_STAGE_DATA(stage)->light_func_tab = tab;
/* This and the above should only be done on _NEW_LIGHT:
*/
TNL_CONTEXT(ctx)->Driver.NotifyMaterialChange( ctx );
}
static GLboolean run_lighting( GLcontext *ctx,
struct tnl_pipeline_stage *stage )
{
struct light_stage_data *store = LIGHT_STAGE_DATA(stage);
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct vertex_buffer *VB = &tnl->vb;
GLvector4f *input = ctx->_NeedEyeCoords ? VB->EyePtr : VB->ObjPtr;
GLuint idx;
if (!ctx->Light.Enabled || ctx->VertexProgram._Current)
return GL_TRUE;
/* Make sure we can talk about position x,y and z:
*/
if (input->size <= 2 && input == VB->ObjPtr) {
_math_trans_4f( store->Input.data,
VB->ObjPtr->data,
VB->ObjPtr->stride,
GL_FLOAT,
VB->ObjPtr->size,
0,
VB->Count );
if (input->size <= 2) {
/* Clean z.
*/
_mesa_vector4f_clean_elem(&store->Input, VB->Count, 2);
}
if (input->size <= 1) {
/* Clean y.
*/
_mesa_vector4f_clean_elem(&store->Input, VB->Count, 1);
}
input = &store->Input;
}
idx = 0;
if (prepare_materials( ctx, VB, store ))
idx |= LIGHT_MATERIAL;
if (ctx->Light.Model.TwoSide)
idx |= LIGHT_TWOSIDE;
/* The individual functions know about replaying side-effects
* vs. full re-execution.
*/
store->light_func_tab[idx]( ctx, VB, stage, input );
VB->AttribPtr[_TNL_ATTRIB_COLOR0] = VB->ColorPtr[0];
VB->AttribPtr[_TNL_ATTRIB_COLOR1] = VB->SecondaryColorPtr[0];
VB->AttribPtr[_TNL_ATTRIB_COLOR_INDEX] = VB->IndexPtr[0];
return GL_TRUE;
}
static void dtr( struct tnl_pipeline_stage *stage )
{
struct light_stage_data *store = LIGHT_STAGE_DATA(stage);
if (store) {
_mesa_vector4f_free( &store->Input );
_mesa_vector4f_free( &store->LitColor[0] );
_mesa_vector4f_free( &store->LitColor[1] );
_mesa_vector4f_free( &store->LitSecondary[0] );
_mesa_vector4f_free( &store->LitSecondary[1] );
_mesa_vector4f_free( &store->LitIndex[0] );
_mesa_vector4f_free( &store->LitIndex[1] );
FREE( store );
stage->privatePtr = NULL;
}
}
/* Called the first time stage->run is called. In effect, don't
* allocate data until the first time the stage is run.
*/
static GLboolean init_lighting( GLcontext *ctx,
struct tnl_pipeline_stage *stage )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct light_stage_data *store;
GLuint size = tnl->vb.Size;
stage->privatePtr = MALLOC(sizeof(*store));
store = LIGHT_STAGE_DATA(stage);
if (!store)
return GL_FALSE;
/* Do onetime init.
*/
init_lighting_tables();
_mesa_vector4f_alloc( &store->Input, 0, size, 32 );
_mesa_vector4f_alloc( &store->LitColor[0], 0, size, 32 );
_mesa_vector4f_alloc( &store->LitColor[1], 0, size, 32 );
_mesa_vector4f_alloc( &store->LitSecondary[0], 0, size, 32 );
_mesa_vector4f_alloc( &store->LitSecondary[1], 0, size, 32 );
_mesa_vector4f_alloc( &store->LitIndex[0], 0, size, 32 );
_mesa_vector4f_alloc( &store->LitIndex[1], 0, size, 32 );
store->LitColor[0].size = 4;
store->LitColor[1].size = 4;
store->LitSecondary[0].size = 3;
store->LitSecondary[1].size = 3;
store->LitIndex[0].size = 1;
store->LitIndex[0].stride = sizeof(GLfloat);
store->LitIndex[1].size = 1;
store->LitIndex[1].stride = sizeof(GLfloat);
return GL_TRUE;
}
