/**
* Update fragment program state/atom. This involves translating the
* Mesa fragment program into a gallium fragment program and binding it.
*/
static void
update_fp( struct st_context *st )
{
struct st_fragment_program *stfp;
struct st_fp_variant_key key;
assert(st->ctx->FragmentProgram._Current);
stfp = st_fragment_program(st->ctx->FragmentProgram._Current);
assert(stfp->Base.Base.Target == GL_FRAGMENT_PROGRAM_ARB);
memset(&key, 0, sizeof(key));
key.st = st->has_shareable_shaders ? NULL : st;
/* _NEW_FRAG_CLAMP */
key.clamp_color = st->clamp_frag_color_in_shader &&
st->ctx->Color._ClampFragmentColor;
/* _NEW_MULTISAMPLE | _NEW_BUFFERS */
key.persample_shading =
st->force_persample_in_shader &&
_mesa_is_multisample_enabled(st->ctx) &&
st->ctx->Multisample.SampleShading &&
st->ctx->Multisample.MinSampleShadingValue *
_mesa_geometric_samples(st->ctx->DrawBuffer) > 1;
if (stfp->ati_fs) {
unsigned u;
if (st->ctx->Fog.Enabled) {
key.fog = translate_fog_mode(st->ctx->Fog.Mode);
}
for (u = 0; u < MAX_NUM_FRAGMENT_REGISTERS_ATI; u++) {
key.texture_targets[u] = get_texture_target(st->ctx, u);
}
}
st->fp_variant = st_get_fp_variant(st, stfp, &key);
st_reference_fragprog(st, &st->fp, stfp);
cso_set_fragment_shader_handle(st->cso_context,
st->fp_variant->driver_shader);
}
static void make_state_key( GLcontext *ctx, struct state_key *key )
{
struct brw_context *brw = brw_context(ctx);
const struct gl_fragment_program *fp = brw->fragment_program;
GLuint i;
/* This now relies on texenvprogram.c being active:
*/
assert(fp);
memset(key, 0, sizeof(*key));
/* BRW_NEW_FRAGMENT_PROGRAM */
key->fragprog_inputs_read = fp->Base.InputsRead;
/* _NEW_LIGHT */
key->separate_specular = (brw->attribs.Light->Model.ColorControl ==
GL_SEPARATE_SPECULAR_COLOR);
/* _NEW_LIGHT */
if (brw->attribs.Light->Enabled) {
key->light_global_enabled = 1;
if (brw->attribs.Light->Model.LocalViewer)
key->light_local_viewer = 1;
if (brw->attribs.Light->Model.TwoSide)
key->light_twoside = 1;
if (brw->attribs.Light->ColorMaterialEnabled) {
key->light_color_material = 1;
key->light_color_material_mask = brw->attribs.Light->ColorMaterialBitmask;
}
/* BRW_NEW_INPUT_VARYING */
/* For these programs, material values are stuffed into the
* generic slots:
*/
for (i = 0 ; i < MAT_ATTRIB_MAX ; i++)
if (brw->vb.info.varying & (1<<(VERT_ATTRIB_GENERIC0 + i)))
key->light_material_mask |= 1<<i;
for (i = 0; i < MAX_LIGHTS; i++) {
struct gl_light *light = &brw->attribs.Light->Light[i];
if (light->Enabled) {
key->unit[i].light_enabled = 1;
if (light->EyePosition[3] == 0.0)
key->unit[i].light_eyepos3_is_zero = 1;
if (light->SpotCutoff == 180.0)
key->unit[i].light_spotcutoff_is_180 = 1;
if (light->ConstantAttenuation != 1.0 ||
light->LinearAttenuation != 0.0 ||
light->QuadraticAttenuation != 0.0)
key->unit[i].light_attenuated = 1;
}
}
}
/* _NEW_TRANSFORM */
if (brw->attribs.Transform->Normalize)
key->normalize = 1;
if (brw->attribs.Transform->RescaleNormals)
key->rescale_normals = 1;
/* BRW_NEW_FRAGMENT_PROGRAM */
key->fog_option = translate_fog_mode(fp->FogOption);
if (key->fog_option)
key->fragprog_inputs_read |= FRAG_BIT_FOGC;
/* _NEW_FOG */
if (brw->attribs.Fog->FogCoordinateSource == GL_FRAGMENT_DEPTH_EXT)
key->fog_source_is_depth = 1;
/* _NEW_HINT, ??? */
if (1)
key->tnl_do_vertex_fog = 1;
/* _NEW_POINT */
if (brw->attribs.Point->_Attenuated)
key->point_attenuated = 1;
/* _NEW_TEXTURE */
if (brw->attribs.Texture->_TexGenEnabled ||
brw->attribs.Texture->_TexMatEnabled ||
brw->attribs.Texture->_EnabledUnits)
key->texture_enabled_global = 1;
for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
struct gl_texture_unit *texUnit = &brw->attribs.Texture->Unit[i];
if (texUnit->_ReallyEnabled)
key->unit[i].texunit_really_enabled = 1;
if (brw->attribs.Texture->_TexMatEnabled & ENABLE_TEXMAT(i))
key->unit[i].texmat_enabled = 1;
if (texUnit->TexGenEnabled) {
key->unit[i].texgen_enabled = 1;
key->unit[i].texgen_mode0 =
translate_texgen( texUnit->TexGenEnabled & (1<<0),
texUnit->GenModeS );
key->unit[i].texgen_mode1 =
translate_texgen( texUnit->TexGenEnabled & (1<<1),
texUnit->GenModeT );
key->unit[i].texgen_mode2 =
translate_texgen( texUnit->TexGenEnabled & (1<<2),
texUnit->GenModeR );
key->unit[i].texgen_mode3 =
translate_texgen( texUnit->TexGenEnabled & (1<<3),
texUnit->GenModeQ );
}
}
}
static struct state_key *make_state_key( GLcontext *ctx )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct vertex_buffer *VB = &tnl->vb;
const struct gl_fragment_program *fp = ctx->FragmentProgram._Current;
struct state_key *key = CALLOC_STRUCT(state_key);
GLuint i;
/* This now relies on texenvprogram.c being active:
*/
assert(fp);
key->fragprog_inputs_read = fp->Base.InputsRead;
key->separate_specular = (ctx->Light.Model.ColorControl ==
GL_SEPARATE_SPECULAR_COLOR);
if (ctx->Light.Enabled) {
key->light_global_enabled = 1;
if (ctx->Light.Model.LocalViewer)
key->light_local_viewer = 1;
if (ctx->Light.Model.TwoSide)
key->light_twoside = 1;
if (ctx->Light.ColorMaterialEnabled) {
key->light_color_material = 1;
key->light_color_material_mask = ctx->Light.ColorMaterialBitmask;
}
for (i = _TNL_FIRST_MAT; i <= _TNL_LAST_MAT; i++)
if (VB->AttribPtr[i]->stride)
key->light_material_mask |= 1<<(i-_TNL_ATTRIB_MAT_FRONT_AMBIENT);
for (i = 0; i < MAX_LIGHTS; i++) {
struct gl_light *light = &ctx->Light.Light[i];
if (light->Enabled) {
key->unit[i].light_enabled = 1;
if (light->EyePosition[3] == 0.0)
key->unit[i].light_eyepos3_is_zero = 1;
if (light->SpotCutoff == 180.0)
key->unit[i].light_spotcutoff_is_180 = 1;
if (light->ConstantAttenuation != 1.0 ||
light->LinearAttenuation != 0.0 ||
light->QuadraticAttenuation != 0.0)
key->unit[i].light_attenuated = 1;
}
}
}
if (ctx->Transform.Normalize)
key->normalize = 1;
if (ctx->Transform.RescaleNormals)
key->rescale_normals = 1;
key->fog_mode = translate_fog_mode(fp->FogOption);
if (ctx->Fog.FogCoordinateSource == GL_FRAGMENT_DEPTH_EXT)
key->fog_source_is_depth = 1;
if (tnl->_DoVertexFog)
key->tnl_do_vertex_fog = 1;
if (ctx->Point._Attenuated)
key->point_attenuated = 1;
if (ctx->Texture._TexGenEnabled ||
ctx->Texture._TexMatEnabled ||
ctx->Texture._EnabledUnits)
key->texture_enabled_global = 1;
for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i];
if (texUnit->_ReallyEnabled)
key->unit[i].texunit_really_enabled = 1;
if (ctx->Texture._TexMatEnabled & ENABLE_TEXMAT(i))
key->unit[i].texmat_enabled = 1;
if (texUnit->TexGenEnabled) {
key->unit[i].texgen_enabled = 1;
key->unit[i].texgen_mode0 =
translate_texgen( texUnit->TexGenEnabled & (1<<0),
texUnit->GenModeS );
key->unit[i].texgen_mode1 =
translate_texgen( texUnit->TexGenEnabled & (1<<1),
texUnit->GenModeT );
key->unit[i].texgen_mode2 =
translate_texgen( texUnit->TexGenEnabled & (1<<2),
texUnit->GenModeR );
key->unit[i].texgen_mode3 =
translate_texgen( texUnit->TexGenEnabled & (1<<3),
texUnit->GenModeQ );
}
}
return key;
}
