static void brw_wm_populate_key( struct brw_context *brw,
struct brw_wm_prog_key *key )
{
/* BRW_NEW_FRAGMENT_PROGRAM */
struct brw_fragment_program *fp =
(struct brw_fragment_program *)brw->fragment_program;
GLuint lookup = 0;
GLuint line_aa;
GLuint i;
memset(key, 0, sizeof(*key));
/* Build the index for table lookup
*/
/* _NEW_COLOR */
if (fp->program.UsesKill ||
brw->attribs.Color->AlphaEnabled)
lookup |= IZ_PS_KILL_ALPHATEST_BIT;
if (fp->program.Base.OutputsWritten & (1<<FRAG_RESULT_DEPR))
lookup |= IZ_PS_COMPUTES_DEPTH_BIT;
/* _NEW_DEPTH */
if (brw->attribs.Depth->Test)
lookup |= IZ_DEPTH_TEST_ENABLE_BIT;
if (brw->attribs.Depth->Test &&
brw->attribs.Depth->Mask) /* ?? */
lookup |= IZ_DEPTH_WRITE_ENABLE_BIT;
/* _NEW_STENCIL */
if (brw->attribs.Stencil->Enabled) {
lookup |= IZ_STENCIL_TEST_ENABLE_BIT;
if (brw->attribs.Stencil->WriteMask[0] ||
(brw->attribs.Stencil->TestTwoSide && brw->attribs.Stencil->WriteMask[1]))
lookup |= IZ_STENCIL_WRITE_ENABLE_BIT;
}
/* XXX: when should this be disabled?
*/
if (1)
lookup |= IZ_EARLY_DEPTH_TEST_BIT;
line_aa = AA_NEVER;
/* _NEW_LINE, _NEW_POLYGON, BRW_NEW_REDUCED_PRIMITIVE */
if (brw->attribs.Line->SmoothFlag) {
if (brw->intel.reduced_primitive == GL_LINES) {
line_aa = AA_ALWAYS;
}
else if (brw->intel.reduced_primitive == GL_TRIANGLES) {
if (brw->attribs.Polygon->FrontMode == GL_LINE) {
line_aa = AA_SOMETIMES;
if (brw->attribs.Polygon->BackMode == GL_LINE ||
(brw->attribs.Polygon->CullFlag &&
brw->attribs.Polygon->CullFaceMode == GL_BACK))
line_aa = AA_ALWAYS;
}
else if (brw->attribs.Polygon->BackMode == GL_LINE) {
line_aa = AA_SOMETIMES;
if ((brw->attribs.Polygon->CullFlag &&
brw->attribs.Polygon->CullFaceMode == GL_FRONT))
line_aa = AA_ALWAYS;
}
}
}
brw_wm_lookup_iz(line_aa,
lookup,
key);
/* BRW_NEW_WM_INPUT_DIMENSIONS */
key->projtex_mask = brw->wm.input_size_masks[4-1];
/* _NEW_LIGHT */
key->flat_shade = (brw->attribs.Light->ShadeModel == GL_FLAT);
/* _NEW_TEXTURE */
for (i = 0; i < BRW_MAX_TEX_UNIT; i++) {
const struct gl_texture_unit *unit = &brw->attribs.Texture->Unit[i];
const struct gl_texture_object *t = unit->_Current;
if (unit->_ReallyEnabled) {
if (t->CompareMode == GL_COMPARE_R_TO_TEXTURE_ARB &&
t->Image[0][t->BaseLevel]->_BaseFormat == GL_DEPTH_COMPONENT) {
key->shadowtex_mask |= 1<<i;
}
if (t->Image[0][t->BaseLevel]->InternalFormat == GL_YCBCR_MESA)
key->yuvtex_mask |= 1<<i;
}
}
/* Extra info:
*/
key->program_string_id = fp->id;
}
void
brw_wm_payload_setup(struct brw_context *brw,
struct brw_wm_compile *c)
{
struct intel_context *intel = &brw->intel;
bool uses_depth = (c->fp->program.Base.InputsRead &
(1 << FRAG_ATTRIB_WPOS)) != 0;
unsigned barycentric_interp_modes = c->prog_data.barycentric_interp_modes;
int i;
if (intel->gen >= 6) {
/* R0-1: masks, pixel X/Y coordinates. */
c->nr_payload_regs = 2;
/* R2: only for 32-pixel dispatch.*/
/* R3-26: barycentric interpolation coordinates. These appear in the
* same order that they appear in the brw_wm_barycentric_interp_mode
* enum. Each set of coordinates occupies 2 registers if dispatch width
* == 8 and 4 registers if dispatch width == 16. Coordinates only
* appear if they were enabled using the "Barycentric Interpolation
* Mode" bits in WM_STATE.
*/
for (i = 0; i < BRW_WM_BARYCENTRIC_INTERP_MODE_COUNT; ++i) {
if (barycentric_interp_modes & (1 << i)) {
c->barycentric_coord_reg[i] = c->nr_payload_regs;
c->nr_payload_regs += 2;
if (c->dispatch_width == 16) {
c->nr_payload_regs += 2;
}
}
}
/* R27: interpolated depth if uses source depth */
if (uses_depth) {
c->source_depth_reg = c->nr_payload_regs;
c->nr_payload_regs++;
if (c->dispatch_width == 16) {
/* R28: interpolated depth if not 8-wide. */
c->nr_payload_regs++;
}
}
/* R29: interpolated W set if GEN6_WM_USES_SOURCE_W.
*/
if (uses_depth) {
c->source_w_reg = c->nr_payload_regs;
c->nr_payload_regs++;
if (c->dispatch_width == 16) {
/* R30: interpolated W if not 8-wide. */
c->nr_payload_regs++;
}
}
/* R31: MSAA position offsets. */
/* R32-: bary for 32-pixel. */
/* R58-59: interp W for 32-pixel. */
if (c->fp->program.Base.OutputsWritten &
BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
c->source_depth_to_render_target = true;
c->computes_depth = true;
}
} else {
brw_wm_lookup_iz(intel, c);
}
}
static void brw_wm_populate_key( struct brw_context *brw,
struct brw_wm_prog_key *key )
{
unsigned lookup, line_aa;
unsigned i;
memset(key, 0, sizeof(*key));
/* PIPE_NEW_FRAGMENT_SHADER
* PIPE_NEW_DEPTH_STENCIL_ALPHA
*/
lookup = (brw->curr.zstencil->iz_lookup |
brw->curr.fragment_shader->iz_lookup);
/* PIPE_NEW_RAST
* BRW_NEW_REDUCED_PRIMITIVE
*/
switch (brw->reduced_primitive) {
case PIPE_PRIM_POINTS:
line_aa = AA_NEVER;
break;
case PIPE_PRIM_LINES:
line_aa = (brw->curr.rast->templ.line_smooth ?
AA_ALWAYS : AA_NEVER);
break;
default:
line_aa = brw->curr.rast->unfilled_aa_line;
break;
}
brw_wm_lookup_iz(line_aa,
lookup,
brw->curr.fragment_shader->uses_depth,
key);
/* PIPE_NEW_RAST */
key->flat_shade = brw->curr.rast->templ.flatshade;
/* PIPE_NEW_BOUND_TEXTURES */
for (i = 0; i < brw->curr.num_textures; i++) {
const struct brw_texture *tex = brw_texture(brw->curr.texture[i]);
if (tex->base.format == PIPE_FORMAT_UYVY)
key->yuvtex_mask |= 1 << i;
if (tex->base.format == PIPE_FORMAT_YUYV)
key->yuvtex_swap_mask |= 1 << i;
/* XXX: shadow texture
*/
/* key->shadowtex_mask |= 1<<i; */
}
/* CACHE_NEW_VS_PROG */
key->vp_nr_outputs = brw->vs.prog_data->nr_outputs;
key->nr_cbufs = brw->curr.fb.nr_cbufs;
key->nr_inputs = brw->curr.fragment_shader->info.num_inputs;
/* The unique fragment program ID */
key->program_string_id = brw->curr.fragment_shader->id;
}
