static void free_texgen_data( struct tnl_pipeline_stage *stage )
{
struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage);
if (store) {
if (store->texcoord.data)
_mesa_vector4f_free( &store->texcoord );
if (store->tmp_f) FREE( store->tmp_f );
if (store->tmp_m) FREE( store->tmp_m );
FREE( store );
stage->privatePtr = NULL;
}
}
static void free_texgen_data( struct tnl_pipeline_stage *stage )
{
struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage);
GLuint i;
if (store) {
for (i = 0 ; i < MAX_TEXTURE_COORD_UNITS ; i++)
if (store->texcoord[i].data)
_mesa_vector4f_free( &store->texcoord[i] );
free( store->tmp_f );
free( store->tmp_m );
free( store );
stage->privatePtr = NULL;
}
}
/* Called the first time stage->run() is invoked.
*/
static GLboolean alloc_texgen_data( struct gl_context *ctx,
struct tnl_pipeline_stage *stage )
{
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
struct texgen_stage_data *store;
stage->privatePtr = CALLOC(sizeof(*store));
store = TEXGEN_STAGE_DATA(stage);
if (!store)
return GL_FALSE;
_mesa_vector4f_alloc( &store->texcoord, 0, VB->Size, 32 );
store->tmp_f = (GLfloat (*)[3]) MALLOC(VB->Size * sizeof(GLfloat) * 3);
store->tmp_m = (GLfloat *) MALLOC(VB->Size * sizeof(GLfloat));
return GL_TRUE;
}
static void validate_texgen_stage( struct gl_context *ctx,
struct tnl_pipeline_stage *stage )
{
struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage);
GLuint i;
if (!ctx->Texture._TexGenEnabled || ctx->VertexProgram._Current)
return;
for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) {
struct gl_fixedfunc_texture_unit *texUnit =
&ctx->Texture.FixedFuncUnit[i];
if (texUnit->TexGenEnabled) {
GLuint sz;
if (texUnit->TexGenEnabled & Q_BIT)
sz = 4;
else if (texUnit->TexGenEnabled & R_BIT)
sz = 3;
else if (texUnit->TexGenEnabled & T_BIT)
sz = 2;
else
sz = 1;
store->TexgenSize[i] = sz;
store->TexgenFunc[i] = texgen; /* general solution */
/* look for special texgen cases */
if (texUnit->TexGenEnabled == (S_BIT|T_BIT|R_BIT)) {
if (texUnit->_GenFlags == TEXGEN_REFLECTION_MAP_NV) {
store->TexgenFunc[i] = texgen_reflection_map_nv;
}
else if (texUnit->_GenFlags == TEXGEN_NORMAL_MAP_NV) {
store->TexgenFunc[i] = texgen_normal_map_nv;
}
}
else if (texUnit->TexGenEnabled == (S_BIT|T_BIT) &&
texUnit->_GenFlags == TEXGEN_SPHERE_MAP) {
store->TexgenFunc[i] = texgen_sphere_map;
}
}
}
}
static void validate_texgen_stage( struct gl_context *ctx,
struct tnl_pipeline_stage *stage )
{
struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage);
if (!ctx->Texture._TexGenEnabled)
return;
{
struct gl_texture_unit *texUnit = &ctx->Texture.Unit;
if (texUnit->TexGenEnabled) {
GLuint sz;
if (texUnit->TexGenEnabled & Q_BIT)
sz = 4;
else if (texUnit->TexGenEnabled & R_BIT)
sz = 3;
else if (texUnit->TexGenEnabled & T_BIT)
sz = 2;
else
sz = 1;
store->TexgenSize = sz;
store->TexgenFunc = texgen; /* general solution */
/* look for special texgen cases */
if (texUnit->TexGenEnabled == (S_BIT|T_BIT|R_BIT)) {
if (texUnit->_GenFlags == TEXGEN_REFLECTION_MAP_NV) {
store->TexgenFunc = texgen_reflection_map_nv;
}
else if (texUnit->_GenFlags == TEXGEN_NORMAL_MAP_NV) {
store->TexgenFunc = texgen_normal_map_nv;
}
}
else if (texUnit->TexGenEnabled == (S_BIT|T_BIT) &&
texUnit->_GenFlags == TEXGEN_SPHERE_MAP) {
store->TexgenFunc = texgen_sphere_map;
}
}
}
}
/* Called the first time stage->run() is invoked.
*/
static GLboolean alloc_texgen_data( struct gl_context *ctx,
struct tnl_pipeline_stage *stage )
{
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
struct texgen_stage_data *store;
GLuint i;
stage->privatePtr = calloc(1, sizeof(*store));
store = TEXGEN_STAGE_DATA(stage);
if (!store)
return GL_FALSE;
for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++)
_mesa_vector4f_alloc( &store->texcoord[i], 0, VB->Size, 32 );
store->tmp_f = malloc(VB->Size * sizeof(GLfloat) * 3);
store->tmp_m = malloc(VB->Size * sizeof(GLfloat));
return GL_TRUE;
}
static GLboolean run_texgen_stage( struct gl_context *ctx,
struct tnl_pipeline_stage *stage )
{
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage);
if (!ctx->Texture._TexGenEnabled)
return GL_TRUE;
{
struct gl_texture_unit *texUnit = &ctx->Texture.Unit;
if (texUnit->TexGenEnabled) {
store->TexgenFunc( ctx, store);
VB->AttribPtr[VERT_ATTRIB_TEX] = &store->texcoord;
}
}
return GL_TRUE;
}
static GLboolean run_texgen_stage( struct gl_context *ctx,
struct tnl_pipeline_stage *stage )
{
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage);
GLuint i;
if (!ctx->Texture._TexGenEnabled || ctx->VertexProgram._Current)
return GL_TRUE;
for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) {
struct gl_fixedfunc_texture_unit *texUnit =
&ctx->Texture.FixedFuncUnit[i];
if (texUnit->TexGenEnabled) {
store->TexgenFunc[i]( ctx, store, i );
VB->AttribPtr[VERT_ATTRIB_TEX0 + i] = &store->texcoord[i];
}
}
return GL_TRUE;
}
