#include "brw_state.h"
#include "brw_defines.h"
#include "brw_util.h"
+#include "compiler/nir/nir.h"
#include "main/macros.h"
#include "main/fbobject.h"
#include "main/framebuffer.h"
/* Find the VUE slot for this attribute. */
int slot = vue_map->varying_to_slot[fs_attr];
+ /* Viewport and Layer are stored in the VUE header. We need to override
+ * them to zero if earlier stages didn't write them, as GL requires that
+ * they read back as zero when not explicitly set.
+ */
+ if (fs_attr == VARYING_SLOT_VIEWPORT || fs_attr == VARYING_SLOT_LAYER) {
+ unsigned override =
+ ATTRIBUTE_0_OVERRIDE_X | ATTRIBUTE_0_OVERRIDE_W |
+ ATTRIBUTE_CONST_0000 << ATTRIBUTE_0_CONST_SOURCE_SHIFT;
+
+ if (!(vue_map->slots_valid & VARYING_BIT_LAYER))
+ override |= ATTRIBUTE_0_OVERRIDE_Y;
+ if (!(vue_map->slots_valid & VARYING_BIT_VIEWPORT))
+ override |= ATTRIBUTE_0_OVERRIDE_Z;
+
+ return override;
+ }
+
/* If there was only a back color written but not front, use back
* as the color instead of undefined
*/
}
-static bool
-is_drawing_points(const struct brw_context *brw)
-{
- /* Determine if the primitives *reaching the SF* are points */
- /* _NEW_POLYGON */
- if (brw->ctx.Polygon.FrontMode == GL_POINT ||
- brw->ctx.Polygon.BackMode == GL_POINT) {
- return true;
- }
-
- if (brw->geometry_program) {
- /* BRW_NEW_GEOMETRY_PROGRAM */
- return brw->geometry_program->OutputType == GL_POINTS;
- } else {
- /* BRW_NEW_PRIMITIVE */
- return brw->primitive == _3DPRIM_POINTLIST;
- }
-}
-
-
/**
* Create the mapping from the FS inputs we produce to the previous pipeline
* stage (GS or VS) outputs they source from.
calculate_attr_overrides(const struct brw_context *brw,
uint16_t *attr_overrides,
uint32_t *point_sprite_enables,
- uint32_t *flat_enables,
uint32_t *urb_entry_read_length,
uint32_t *urb_entry_read_offset)
{
+ /* BRW_NEW_FS_PROG_DATA */
+ const struct brw_wm_prog_data *wm_prog_data =
+ brw_wm_prog_data(brw->wm.base.prog_data);
uint32_t max_source_attr = 0;
*point_sprite_enables = 0;
- *flat_enables = 0;
*urb_entry_read_offset = BRW_SF_URB_ENTRY_READ_OFFSET;
- /* _NEW_LIGHT */
- bool shade_model_flat = brw->ctx.Light.ShadeModel == GL_FLAT;
+ /* BRW_NEW_FRAGMENT_PROGRAM
+ *
+ * If the fragment shader reads VARYING_SLOT_LAYER, then we need to pass in
+ * the full vertex header. Otherwise, we can program the SF to start
+ * reading at an offset of 1 (2 varying slots) to skip unnecessary data:
+ * - VARYING_SLOT_PSIZ and BRW_VARYING_SLOT_NDC on gen4-5
+ * - VARYING_SLOT_{PSIZ,LAYER} and VARYING_SLOT_POS on gen6+
+ */
+
+ bool fs_needs_vue_header = brw->fragment_program->info.inputs_read &
+ (VARYING_BIT_LAYER | VARYING_BIT_VIEWPORT);
+
+ *urb_entry_read_offset = fs_needs_vue_header ? 0 : 1;
/* From the Ivybridge PRM, Vol 2 Part 1, 3DSTATE_SBE,
* description of dw10 Point Sprite Texture Coordinate Enable:
* This is not required on Haswell, as the hardware ignores this state
* when drawing non-points -- although we do still need to be careful to
* correctly set the attr overrides.
+ *
+ * _NEW_POLYGON
+ * BRW_NEW_PRIMITIVE | BRW_NEW_GS_PROG_DATA | BRW_NEW_TES_PROG_DATA
*/
- /* BRW_NEW_PRIMITIVE | BRW_NEW_GEOMETRY_PROGRAM */
- bool drawing_points = is_drawing_points(brw);
+ bool drawing_points = brw_is_drawing_points(brw);
/* Initialize all the attr_overrides to 0. In the loop below we'll modify
* just the ones that correspond to inputs used by the fs.
memset(attr_overrides, 0, 16*sizeof(*attr_overrides));
for (int attr = 0; attr < VARYING_SLOT_MAX; attr++) {
- /* BRW_NEW_FRAGMENT_PROGRAM */
- enum glsl_interp_qualifier interp_qualifier =
- brw->fragment_program->InterpQualifier[attr];
- bool is_gl_Color = attr == VARYING_SLOT_COL0 || attr == VARYING_SLOT_COL1;
- /* BRW_NEW_FS_PROG_DATA */
- int input_index = brw->wm.prog_data->urb_setup[attr];
+ int input_index = wm_prog_data->urb_setup[attr];
if (input_index < 0)
continue;
if (drawing_points) {
if (brw->ctx.Point.PointSprite &&
(attr >= VARYING_SLOT_TEX0 && attr <= VARYING_SLOT_TEX7) &&
- brw->ctx.Point.CoordReplace[attr - VARYING_SLOT_TEX0]) {
+ (brw->ctx.Point.CoordReplace & (1u << (attr - VARYING_SLOT_TEX0)))) {
point_sprite = true;
}
*point_sprite_enables |= (1 << input_index);
}
- /* flat shading */
- if (interp_qualifier == INTERP_QUALIFIER_FLAT ||
- (shade_model_flat && is_gl_Color &&
- interp_qualifier == INTERP_QUALIFIER_NONE))
- *flat_enables |= (1 << input_index);
-
/* BRW_NEW_VUE_MAP_GEOM_OUT | _NEW_LIGHT | _NEW_PROGRAM */
uint16_t attr_override = point_sprite ? 0 :
get_attr_override(&brw->vue_map_geom_out,
{
struct gl_context *ctx = &brw->ctx;
/* BRW_NEW_FS_PROG_DATA */
- uint32_t num_outputs = brw->wm.prog_data->num_varying_inputs;
+ const struct brw_wm_prog_data *wm_prog_data =
+ brw_wm_prog_data(brw->wm.base.prog_data);
+ uint32_t num_outputs = wm_prog_data->num_varying_inputs;
uint32_t dw1, dw2, dw3, dw4;
uint32_t point_sprite_enables;
- uint32_t flat_enables;
int i;
/* _NEW_BUFFER */
bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
dw1 = GEN6_SF_SWIZZLE_ENABLE | num_outputs << GEN6_SF_NUM_OUTPUTS_SHIFT;
dw2 = GEN6_SF_STATISTICS_ENABLE;
+ dw3 = GEN6_SF_SCISSOR_ENABLE;
+ dw4 = 0;
if (brw->sf.viewport_transform_enable)
dw2 |= GEN6_SF_VIEWPORT_TRANSFORM_ENABLE;
- dw3 = 0;
- dw4 = 0;
-
/* _NEW_POLYGON */
if (ctx->Polygon._FrontBit == render_to_fbo)
dw2 |= GEN6_SF_WINDING_CCW;
unreachable("not reached");
}
- /* _NEW_SCISSOR */
- if (ctx->Scissor.EnableFlags)
- dw3 |= GEN6_SF_SCISSOR_ENABLE;
-
/* _NEW_POLYGON */
if (ctx->Polygon.CullFlag) {
switch (ctx->Polygon.CullFaceMode) {
if (multisampled_fbo && ctx->Multisample.Enabled)
dw3 |= GEN6_SF_MSRAST_ON_PATTERN;
- /* _NEW_PROGRAM | _NEW_POINT */
- if (!(ctx->VertexProgram.PointSizeEnabled ||
- ctx->Point._Attenuated))
+ /* _NEW_PROGRAM | _NEW_POINT, BRW_NEW_VUE_MAP_GEOM_OUT */
+ if (use_state_point_size(brw))
dw4 |= GEN6_SF_USE_STATE_POINT_WIDTH;
- /* Clamp to ARB_point_parameters user limits */
+ /* _NEW_POINT - Clamp to ARB_point_parameters user limits */
point_size = CLAMP(ctx->Point.Size, ctx->Point.MinSize, ctx->Point.MaxSize);
/* Clamp to the hardware limits and convert to fixed point */
uint32_t urb_entry_read_length;
uint32_t urb_entry_read_offset;
calculate_attr_overrides(brw, attr_overrides, &point_sprite_enables,
- &flat_enables, &urb_entry_read_length,
- &urb_entry_read_offset);
+ &urb_entry_read_length, &urb_entry_read_offset);
dw1 |= (urb_entry_read_length << GEN6_SF_URB_ENTRY_READ_LENGTH_SHIFT |
urb_entry_read_offset << GEN6_SF_URB_ENTRY_READ_OFFSET_SHIFT);
OUT_BATCH(attr_overrides[i * 2] | attr_overrides[i * 2 + 1] << 16);
}
OUT_BATCH(point_sprite_enables); /* dw16 */
- OUT_BATCH(flat_enables);
+ OUT_BATCH(wm_prog_data->flat_inputs);
OUT_BATCH(0); /* wrapshortest enables 0-7 */
OUT_BATCH(0); /* wrapshortest enables 8-15 */
ADVANCE_BATCH();
_NEW_MULTISAMPLE |
_NEW_POINT |
_NEW_POLYGON |
- _NEW_PROGRAM |
- _NEW_SCISSOR,
- .brw = BRW_NEW_CONTEXT |
+ _NEW_PROGRAM,
+ .brw = BRW_NEW_BLORP |
+ BRW_NEW_CONTEXT |
BRW_NEW_FRAGMENT_PROGRAM |
BRW_NEW_FS_PROG_DATA |
- BRW_NEW_GEOMETRY_PROGRAM |
+ BRW_NEW_GS_PROG_DATA |
BRW_NEW_PRIMITIVE |
+ BRW_NEW_TES_PROG_DATA |
BRW_NEW_VUE_MAP_GEOM_OUT,
},
.emit = upload_sf_state,
projects / mesa.git / blobdiff