#include "brw_defines.h"
#include "brw_util.h"
#include "brw_wm.h"
+#include "program/program.h"
#include "program/prog_parameter.h"
#include "program/prog_statevars.h"
#include "intel_batchbuffer.h"
static void
gen6_upload_wm_push_constants(struct brw_context *brw)
{
- struct intel_context *intel = &brw->intel;
- struct gl_context *ctx = &intel->ctx;
+ struct gl_context *ctx = &brw->ctx;
/* BRW_NEW_FRAGMENT_PROGRAM */
const struct brw_fragment_program *fp =
brw_fragment_program_const(brw->fragment_program);
+ /* CACHE_NEW_WM_PROG */
+ const struct brw_wm_prog_data *prog_data = brw->wm.prog_data;
/* Updates the ParameterValues[i] pointers for all parameters of the
* basic type of PROGRAM_STATE_VAR.
/* XXX: Should this happen somewhere before to get our state flag set? */
_mesa_load_state_parameters(ctx, fp->program.Base.Parameters);
- /* CACHE_NEW_WM_PROG */
- if (brw->wm.prog_data->nr_params != 0) {
+ if (prog_data->base.nr_params == 0) {
+ brw->wm.base.push_const_size = 0;
+ } else {
float *constants;
unsigned int i;
constants = brw_state_batch(brw, AUB_TRACE_WM_CONSTANTS,
- brw->wm.prog_data->nr_params *
- sizeof(float),
- 32, &brw->wm.push_const_offset);
+ prog_data->base.nr_params * sizeof(float),
+ 32, &brw->wm.base.push_const_offset);
- for (i = 0; i < brw->wm.prog_data->nr_params; i++) {
- constants[i] = convert_param(brw->wm.prog_data->param_convert[i],
- brw->wm.prog_data->param[i]);
+ for (i = 0; i < prog_data->base.nr_params; i++) {
+ constants[i] = *prog_data->base.param[i];
}
if (0) {
printf("WM constants:\n");
- for (i = 0; i < brw->wm.prog_data->nr_params; i++) {
+ for (i = 0; i < prog_data->base.nr_params; i++) {
if ((i & 7) == 0)
- printf("g%d: ", brw->wm.prog_data->first_curbe_grf + i / 8);
+ printf("g%d: ", prog_data->first_curbe_grf + i / 8);
printf("%8f ", constants[i]);
if ((i & 7) == 7)
printf("\n");
printf("\n");
printf("\n");
}
+
+ brw->wm.base.push_const_size = ALIGN(prog_data->base.nr_params, 8) / 8;
}
}
static void
upload_wm_state(struct brw_context *brw)
{
- struct intel_context *intel = &brw->intel;
- struct gl_context *ctx = &intel->ctx;
+ struct gl_context *ctx = &brw->ctx;
const struct brw_fragment_program *fp =
brw_fragment_program_const(brw->fragment_program);
uint32_t dw2, dw4, dw5, dw6;
- /* _NEW_LIGHT */
- bool flat_shade = (ctx->Light.ShadeModel == GL_FLAT);
+ /* _NEW_BUFFERS */
+ bool multisampled_fbo = ctx->DrawBuffer->Visual.samples > 1;
/* CACHE_NEW_WM_PROG */
- if (brw->wm.prog_data->nr_params == 0) {
+ if (brw->wm.prog_data->base.nr_params == 0) {
/* Disable the push constant buffers. */
BEGIN_BATCH(5);
OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 | (5 - 2));
GEN6_CONSTANT_BUFFER_0_ENABLE |
(5 - 2));
/* Pointer to the WM constant buffer. Covered by the set of
- * state flags from gen6_upload_wm_constants
+ * state flags from gen6_upload_wm_push_constants.
*/
- OUT_BATCH(brw->wm.push_const_offset +
- ALIGN(brw->wm.prog_data->nr_params,
- brw->wm.prog_data->dispatch_width) / 8 - 1);
+ OUT_BATCH(brw->wm.base.push_const_offset +
+ brw->wm.base.push_const_size - 1);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
dw5 |= GEN6_WM_LINE_END_CAP_AA_WIDTH_0_5;
/* Use ALT floating point mode for ARB fragment programs, because they
- * require 0^0 == 1.
+ * require 0^0 == 1. Even though _CurrentFragmentProgram is used for
+ * rendering, CurrentProgram[MESA_SHADER_FRAGMENT] is used for this check
+ * to differentiate between the GLSL and non-GLSL cases.
*/
- if (ctx->Shader.CurrentFragmentProgram == NULL)
+ if (ctx->Shader.CurrentProgram[MESA_SHADER_FRAGMENT] == NULL)
dw2 |= GEN6_WM_FLOATING_POINT_MODE_ALT;
/* CACHE_NEW_SAMPLER */
- dw2 |= (ALIGN(brw->sampler.count, 4) / 4) << GEN6_WM_SAMPLER_COUNT_SHIFT;
- dw4 |= (brw->wm.prog_data->first_curbe_grf <<
- GEN6_WM_DISPATCH_START_GRF_SHIFT_0);
- dw4 |= (brw->wm.prog_data->first_curbe_grf_16 <<
- GEN6_WM_DISPATCH_START_GRF_SHIFT_2);
-
- switch (brw->hiz.op) {
- case BRW_HIZ_OP_NONE:
- break;
- case BRW_HIZ_OP_DEPTH_CLEAR:
- dw4 |= GEN6_WM_DEPTH_CLEAR;
- break;
- case BRW_HIZ_OP_DEPTH_RESOLVE:
- dw4 |= GEN6_WM_DEPTH_RESOLVE;
- break;
- case BRW_HIZ_OP_HIZ_RESOLVE:
- dw4 |= GEN6_WM_HIERARCHICAL_DEPTH_RESOLVE;
- break;
- default:
- assert(0);
- break;
- }
+ dw2 |= (ALIGN(brw->wm.base.sampler_count, 4) / 4) <<
+ GEN6_WM_SAMPLER_COUNT_SHIFT;
+
+ /* CACHE_NEW_WM_PROG */
+ dw2 |= ((brw->wm.prog_data->base.binding_table.size_bytes / 4) <<
+ GEN6_WM_BINDING_TABLE_ENTRY_COUNT_SHIFT);
dw5 |= (brw->max_wm_threads - 1) << GEN6_WM_MAX_THREADS_SHIFT;
/* CACHE_NEW_WM_PROG */
- if (brw->wm.prog_data->dispatch_width == 8) {
- dw5 |= GEN6_WM_8_DISPATCH_ENABLE;
- if (brw->wm.prog_data->prog_offset_16)
- dw5 |= GEN6_WM_16_DISPATCH_ENABLE;
- } else {
+
+ /* In case of non 1x per sample shading, only one of SIMD8 and SIMD16
+ * should be enabled. We do 'SIMD16 only' dispatch if a SIMD16 shader
+ * is successfully compiled. In majority of the cases that bring us
+ * better performance than 'SIMD8 only' dispatch.
+ */
+ int min_inv_per_frag =
+ _mesa_get_min_invocations_per_fragment(ctx, brw->fragment_program, false);
+ assert(min_inv_per_frag >= 1);
+
+ if (brw->wm.prog_data->prog_offset_16) {
dw5 |= GEN6_WM_16_DISPATCH_ENABLE;
+
+ if (min_inv_per_frag == 1) {
+ dw5 |= GEN6_WM_8_DISPATCH_ENABLE;
+ dw4 |= (brw->wm.prog_data->first_curbe_grf <<
+ GEN6_WM_DISPATCH_START_GRF_SHIFT_0);
+ dw4 |= (brw->wm.prog_data->first_curbe_grf_16 <<
+ GEN6_WM_DISPATCH_START_GRF_SHIFT_2);
+ } else
+ dw4 |= (brw->wm.prog_data->first_curbe_grf_16 <<
+ GEN6_WM_DISPATCH_START_GRF_SHIFT_0);
+ }
+ else {
+ dw5 |= GEN6_WM_8_DISPATCH_ENABLE;
+ dw4 |= (brw->wm.prog_data->first_curbe_grf <<
+ GEN6_WM_DISPATCH_START_GRF_SHIFT_0);
+ }
+
+ /* CACHE_NEW_WM_PROG | _NEW_COLOR */
+ if (brw->wm.prog_data->dual_src_blend &&
+ (ctx->Color.BlendEnabled & 1) &&
+ ctx->Color.Blend[0]._UsesDualSrc) {
+ dw5 |= GEN6_WM_DUAL_SOURCE_BLEND_ENABLE;
}
/* _NEW_LINE */
dw5 |= GEN6_WM_POLYGON_STIPPLE_ENABLE;
/* BRW_NEW_FRAGMENT_PROGRAM */
- if (fp->program.Base.InputsRead & FRAG_BIT_WPOS)
+ if (fp->program.Base.InputsRead & VARYING_BIT_POS)
dw5 |= GEN6_WM_USES_SOURCE_DEPTH | GEN6_WM_USES_SOURCE_W;
if (fp->program.Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH))
dw5 |= GEN6_WM_COMPUTED_DEPTH;
- dw6 |= brw_compute_barycentric_interp_modes(flat_shade, &fp->program) <<
+ /* CACHE_NEW_WM_PROG */
+ dw6 |= brw->wm.prog_data->barycentric_interp_modes <<
GEN6_WM_BARYCENTRIC_INTERPOLATION_MODE_SHIFT;
- /* _NEW_COLOR */
- if (fp->program.UsesKill || ctx->Color.AlphaEnabled)
+ /* _NEW_COLOR, _NEW_MULTISAMPLE */
+ if (fp->program.UsesKill || ctx->Color.AlphaEnabled ||
+ ctx->Multisample.SampleAlphaToCoverage ||
+ brw->wm.prog_data->uses_omask)
dw5 |= GEN6_WM_KILL_ENABLE;
if (brw_color_buffer_write_enabled(brw) ||
dw5 |= GEN6_WM_DISPATCH_ENABLE;
}
- dw6 |= _mesa_bitcount_64(brw->fragment_program->Base.InputsRead) <<
+ /* From the SNB PRM, volume 2 part 1, page 278:
+ * "This bit is inserted in the PS payload header and made available to
+ * the DataPort (either via the message header or via header bypass) to
+ * indicate that oMask data (one or two phases) is included in Render
+ * Target Write messages. If present, the oMask data is used to mask off
+ * samples."
+ */
+ if(brw->wm.prog_data->uses_omask)
+ dw5 |= GEN6_WM_OMASK_TO_RENDER_TARGET;
+
+ /* CACHE_NEW_WM_PROG */
+ dw6 |= brw->wm.prog_data->num_varying_inputs <<
GEN6_WM_NUM_SF_OUTPUTS_SHIFT;
+ if (multisampled_fbo) {
+ /* _NEW_MULTISAMPLE */
+ if (ctx->Multisample.Enabled)
+ dw6 |= GEN6_WM_MSRAST_ON_PATTERN;
+ else
+ dw6 |= GEN6_WM_MSRAST_OFF_PIXEL;
+
+ if (min_inv_per_frag > 1)
+ dw6 |= GEN6_WM_MSDISPMODE_PERSAMPLE;
+ else {
+ dw6 |= GEN6_WM_MSDISPMODE_PERPIXEL;
+
+ /* From the Sandy Bridge PRM, Vol 2 part 1, 7.7.1 ("Pixel Grouping
+ * (Dispatch Size) Control"), p.334:
+ *
+ * Note: in the table below, the Valid column indicates which
+ * products that combination is supported on. Combinations of
+ * dispatch enables not listed in the table are not available on
+ * any product.
+ *
+ * A: Valid on all products
+ *
+ * B: Not valid on [DevSNB] if 4x PERPIXEL mode with pixel shader
+ * computed depth.
+ *
+ * D: Valid on all products, except when in non-1x PERSAMPLE mode
+ * (applies to [DevSNB+] only). Not valid on [DevSNB] if 4x
+ * PERPIXEL mode with pixel shader computed depth.
+ *
+ * E: Not valid on [DevSNB] if 4x PERPIXEL mode with pixel shader
+ * computed depth.
+ *
+ * F: Valid on all products, except not valid on [DevSNB] if 4x
+ * PERPIXEL mode with pixel shader computed depth.
+ *
+ * In the table that follows, the only entry with "A" in the Valid
+ * column is the entry where only 8 pixel dispatch is enabled.
+ * Therefore, when we are in PERPIXEL mode with pixel shader computed
+ * depth, we need to disable SIMD16 dispatch.
+ */
+ if (dw5 & GEN6_WM_COMPUTED_DEPTH)
+ dw5 &= ~GEN6_WM_16_DISPATCH_ENABLE;
+ }
+ } else {
+ dw6 |= GEN6_WM_MSRAST_OFF_PIXEL;
+ dw6 |= GEN6_WM_MSDISPMODE_PERSAMPLE;
+ }
+
+ /* _NEW_BUFFERS, _NEW_MULTISAMPLE */
+ /* From the SNB PRM, volume 2 part 1, page 281:
+ * "If the PS kernel does not need the Position XY Offsets
+ * to compute a Position XY value, then this field should be
+ * programmed to POSOFFSET_NONE."
+ *
+ * "SW Recommendation: If the PS kernel needs the Position Offsets
+ * to compute a Position XY value, this field should match Position
+ * ZW Interpolation Mode to ensure a consistent position.xyzw
+ * computation."
+ * We only require XY sample offsets. So, this recommendation doesn't
+ * look useful at the moment. We might need this in future.
+ */
+ if (brw->wm.prog_data->uses_pos_offset)
+ dw6 |= GEN6_WM_POSOFFSET_SAMPLE;
+ else
+ dw6 |= GEN6_WM_POSOFFSET_NONE;
BEGIN_BATCH(9);
OUT_BATCH(_3DSTATE_WM << 16 | (9 - 2));
- OUT_BATCH(brw->wm.prog_offset);
+ if (brw->wm.prog_data->prog_offset_16 && min_inv_per_frag > 1)
+ OUT_BATCH(brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16);
+ else
+ OUT_BATCH(brw->wm.base.prog_offset);
OUT_BATCH(dw2);
if (brw->wm.prog_data->total_scratch) {
- OUT_RELOC(brw->wm.scratch_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
+ OUT_RELOC(brw->wm.base.scratch_bo,
+ I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
ffs(brw->wm.prog_data->total_scratch) - 11);
} else {
OUT_BATCH(0);
OUT_BATCH(dw6);
OUT_BATCH(0); /* kernel 1 pointer */
/* kernel 2 pointer */
- OUT_BATCH(brw->wm.prog_offset + brw->wm.prog_data->prog_offset_16);
+ OUT_BATCH(brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16);
ADVANCE_BATCH();
}
const struct brw_tracked_state gen6_wm_state = {
.dirty = {
.mesa = (_NEW_LINE |
- _NEW_LIGHT |
_NEW_COLOR |
_NEW_BUFFERS |
_NEW_PROGRAM_CONSTANTS |
- _NEW_POLYGON),
+ _NEW_POLYGON |
+ _NEW_MULTISAMPLE),
.brw = (BRW_NEW_FRAGMENT_PROGRAM |
BRW_NEW_BATCH |
- BRW_NEW_HIZ),
+ BRW_NEW_PUSH_CONSTANT_ALLOCATION),
.cache = (CACHE_NEW_SAMPLER |
CACHE_NEW_WM_PROG)
},
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