2 * Copyright © 2009 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 * Eric Anholt <eric@anholt.net>
28 #include "brw_context.h"
29 #include "brw_state.h"
30 #include "brw_defines.h"
33 #include "program/prog_parameter.h"
34 #include "program/prog_statevars.h"
35 #include "intel_batchbuffer.h"
38 gen6_upload_wm_push_constants(struct brw_context *brw)
40 struct intel_context *intel = &brw->intel;
41 struct gl_context *ctx = &intel->ctx;
42 /* BRW_NEW_FRAGMENT_PROGRAM */
43 const struct brw_fragment_program *fp =
44 brw_fragment_program_const(brw->fragment_program);
46 /* Updates the ParameterValues[i] pointers for all parameters of the
47 * basic type of PROGRAM_STATE_VAR.
49 /* XXX: Should this happen somewhere before to get our state flag set? */
50 _mesa_load_state_parameters(ctx, fp->program.Base.Parameters);
52 /* CACHE_NEW_WM_PROG */
53 if (brw->wm.prog_data->nr_params != 0) {
57 constants = brw_state_batch(brw, AUB_TRACE_WM_CONSTANTS,
58 brw->wm.prog_data->nr_params *
60 32, &brw->wm.push_const_offset);
62 for (i = 0; i < brw->wm.prog_data->nr_params; i++) {
63 constants[i] = convert_param(brw->wm.prog_data->param_convert[i],
64 brw->wm.prog_data->param[i]);
68 printf("WM constants:\n");
69 for (i = 0; i < brw->wm.prog_data->nr_params; i++) {
71 printf("g%d: ", brw->wm.prog_data->first_curbe_grf + i / 8);
72 printf("%8f ", constants[i]);
83 const struct brw_tracked_state gen6_wm_push_constants = {
85 .mesa = _NEW_PROGRAM_CONSTANTS,
86 .brw = (BRW_NEW_BATCH |
87 BRW_NEW_FRAGMENT_PROGRAM),
88 .cache = CACHE_NEW_WM_PROG,
90 .emit = gen6_upload_wm_push_constants,
94 upload_wm_state(struct brw_context *brw)
96 struct intel_context *intel = &brw->intel;
97 struct gl_context *ctx = &intel->ctx;
98 const struct brw_fragment_program *fp =
99 brw_fragment_program_const(brw->fragment_program);
100 uint32_t dw2, dw4, dw5, dw6;
101 bool multisampled_fbo = false;
104 if (ctx->DrawBuffer->_ColorDrawBuffers[0])
105 multisampled_fbo = ctx->DrawBuffer->_ColorDrawBuffers[0]->NumSamples > 0;
107 /* CACHE_NEW_WM_PROG */
108 if (brw->wm.prog_data->nr_params == 0) {
109 /* Disable the push constant buffers. */
111 OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 | (5 - 2));
119 OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 |
120 GEN6_CONSTANT_BUFFER_0_ENABLE |
122 /* Pointer to the WM constant buffer. Covered by the set of
123 * state flags from gen6_upload_wm_push_constants.
125 OUT_BATCH(brw->wm.push_const_offset +
126 ALIGN(brw->wm.prog_data->nr_params,
127 brw->wm.prog_data->dispatch_width) / 8 - 1);
134 dw2 = dw4 = dw5 = dw6 = 0;
135 dw4 |= GEN6_WM_STATISTICS_ENABLE;
136 dw5 |= GEN6_WM_LINE_AA_WIDTH_1_0;
137 dw5 |= GEN6_WM_LINE_END_CAP_AA_WIDTH_0_5;
139 /* Use ALT floating point mode for ARB fragment programs, because they
140 * require 0^0 == 1. Even though _CurrentFragmentProgram is used for
141 * rendering, CurrentFragmentProgram is used for this check to
142 * differentiate between the GLSL and non-GLSL cases.
144 if (ctx->Shader.CurrentFragmentProgram == NULL)
145 dw2 |= GEN6_WM_FLOATING_POINT_MODE_ALT;
147 /* CACHE_NEW_SAMPLER */
148 dw2 |= (ALIGN(brw->sampler.count, 4) / 4) << GEN6_WM_SAMPLER_COUNT_SHIFT;
149 dw4 |= (brw->wm.prog_data->first_curbe_grf <<
150 GEN6_WM_DISPATCH_START_GRF_SHIFT_0);
151 dw4 |= (brw->wm.prog_data->first_curbe_grf_16 <<
152 GEN6_WM_DISPATCH_START_GRF_SHIFT_2);
154 dw5 |= (brw->max_wm_threads - 1) << GEN6_WM_MAX_THREADS_SHIFT;
156 /* CACHE_NEW_WM_PROG */
157 if (brw->wm.prog_data->dispatch_width == 8) {
158 dw5 |= GEN6_WM_8_DISPATCH_ENABLE;
159 if (brw->wm.prog_data->prog_offset_16)
160 dw5 |= GEN6_WM_16_DISPATCH_ENABLE;
162 dw5 |= GEN6_WM_16_DISPATCH_ENABLE;
165 /* CACHE_NEW_WM_PROG | _NEW_COLOR */
166 if (brw->wm.prog_data->dual_src_blend &&
167 (ctx->Color.BlendEnabled & 1) &&
168 ctx->Color.Blend[0]._UsesDualSrc) {
169 dw5 |= GEN6_WM_DUAL_SOURCE_BLEND_ENABLE;
173 if (ctx->Line.StippleFlag)
174 dw5 |= GEN6_WM_LINE_STIPPLE_ENABLE;
177 if (ctx->Polygon.StippleFlag)
178 dw5 |= GEN6_WM_POLYGON_STIPPLE_ENABLE;
180 /* BRW_NEW_FRAGMENT_PROGRAM */
181 if (fp->program.Base.InputsRead & FRAG_BIT_WPOS)
182 dw5 |= GEN6_WM_USES_SOURCE_DEPTH | GEN6_WM_USES_SOURCE_W;
183 if (fp->program.Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH))
184 dw5 |= GEN6_WM_COMPUTED_DEPTH;
185 /* CACHE_NEW_WM_PROG */
186 dw6 |= brw->wm.prog_data->barycentric_interp_modes <<
187 GEN6_WM_BARYCENTRIC_INTERPOLATION_MODE_SHIFT;
190 if (fp->program.UsesKill || ctx->Color.AlphaEnabled)
191 dw5 |= GEN6_WM_KILL_ENABLE;
193 if (brw_color_buffer_write_enabled(brw) ||
194 dw5 & (GEN6_WM_KILL_ENABLE | GEN6_WM_COMPUTED_DEPTH)) {
195 dw5 |= GEN6_WM_DISPATCH_ENABLE;
198 dw6 |= _mesa_bitcount_64(brw->fragment_program->Base.InputsRead) <<
199 GEN6_WM_NUM_SF_OUTPUTS_SHIFT;
200 if (multisampled_fbo) {
201 /* _NEW_MULTISAMPLE */
202 if (ctx->Multisample.Enabled)
203 dw6 |= GEN6_WM_MSRAST_ON_PATTERN;
205 dw6 |= GEN6_WM_MSRAST_OFF_PIXEL;
206 dw6 |= GEN6_WM_MSDISPMODE_PERPIXEL;
208 dw6 |= GEN6_WM_MSRAST_OFF_PIXEL;
209 dw6 |= GEN6_WM_MSDISPMODE_PERSAMPLE;
213 OUT_BATCH(_3DSTATE_WM << 16 | (9 - 2));
214 OUT_BATCH(brw->wm.prog_offset);
216 if (brw->wm.prog_data->total_scratch) {
217 OUT_RELOC(brw->wm.scratch_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
218 ffs(brw->wm.prog_data->total_scratch) - 11);
225 OUT_BATCH(0); /* kernel 1 pointer */
226 /* kernel 2 pointer */
227 OUT_BATCH(brw->wm.prog_offset + brw->wm.prog_data->prog_offset_16);
231 const struct brw_tracked_state gen6_wm_state = {
236 _NEW_PROGRAM_CONSTANTS |
239 .brw = (BRW_NEW_FRAGMENT_PROGRAM |
241 .cache = (CACHE_NEW_SAMPLER |
244 .emit = upload_wm_state,