| /* |
| * Copyright © 2009 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| * |
| * Authors: |
| * Eric Anholt <eric@anholt.net> |
| * |
| */ |
| |
| #include "brw_context.h" |
| #include "brw_state.h" |
| #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 "main/shaderapi.h" |
| #include "main/framebuffer.h" |
| #include "intel_batchbuffer.h" |
| |
| static void |
| gen6_upload_wm_push_constants(struct brw_context *brw) |
| { |
| struct brw_stage_state *stage_state = &brw->wm.base; |
| /* BRW_NEW_FRAGMENT_PROGRAM */ |
| const struct brw_program *fp = brw_program_const(brw->fragment_program); |
| /* BRW_NEW_FS_PROG_DATA */ |
| const struct brw_stage_prog_data *prog_data = brw->wm.base.prog_data; |
| |
| _mesa_shader_write_subroutine_indices(&brw->ctx, MESA_SHADER_FRAGMENT); |
| |
| gen6_upload_push_constants(brw, &fp->program, prog_data, |
| stage_state, AUB_TRACE_WM_CONSTANTS); |
| |
| if (brw->gen >= 7) { |
| gen7_upload_constant_state(brw, &brw->wm.base, true, |
| _3DSTATE_CONSTANT_PS); |
| } |
| } |
| |
| const struct brw_tracked_state gen6_wm_push_constants = { |
| .dirty = { |
| .mesa = _NEW_PROGRAM_CONSTANTS, |
| .brw = BRW_NEW_BATCH | |
| BRW_NEW_BLORP | |
| BRW_NEW_FRAGMENT_PROGRAM | |
| BRW_NEW_FS_PROG_DATA | |
| BRW_NEW_PUSH_CONSTANT_ALLOCATION, |
| }, |
| .emit = gen6_upload_wm_push_constants, |
| }; |
| |
| void |
| gen6_upload_wm_state(struct brw_context *brw, |
| const struct brw_wm_prog_data *prog_data, |
| const struct brw_stage_state *stage_state, |
| bool multisampled_fbo, |
| bool dual_source_blend_enable, bool kill_enable, |
| bool color_buffer_write_enable, bool msaa_enabled, |
| bool line_stipple_enable, bool polygon_stipple_enable, |
| bool statistic_enable) |
| { |
| const struct gen_device_info *devinfo = &brw->screen->devinfo; |
| uint32_t dw2, dw4, dw5, dw6, ksp0, ksp2; |
| |
| /* We can't fold this into gen6_upload_wm_push_constants(), because |
| * according to the SNB PRM, vol 2 part 1 section 7.2.2 |
| * (3DSTATE_CONSTANT_PS [DevSNB]): |
| * |
| * "[DevSNB]: This packet must be followed by WM_STATE." |
| */ |
| if (prog_data->base.nr_params == 0) { |
| /* Disable the push constant buffers. */ |
| BEGIN_BATCH(5); |
| OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 | (5 - 2)); |
| OUT_BATCH(0); |
| OUT_BATCH(0); |
| OUT_BATCH(0); |
| OUT_BATCH(0); |
| ADVANCE_BATCH(); |
| } else { |
| BEGIN_BATCH(5); |
| OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 | |
| GEN6_CONSTANT_BUFFER_0_ENABLE | |
| (5 - 2)); |
| /* Pointer to the WM constant buffer. Covered by the set of |
| * state flags from gen6_upload_wm_push_constants. |
| */ |
| OUT_BATCH(stage_state->push_const_offset + |
| stage_state->push_const_size - 1); |
| OUT_BATCH(0); |
| OUT_BATCH(0); |
| OUT_BATCH(0); |
| ADVANCE_BATCH(); |
| } |
| |
| dw2 = dw4 = dw5 = dw6 = ksp2 = 0; |
| |
| if (statistic_enable) |
| dw4 |= GEN6_WM_STATISTICS_ENABLE; |
| |
| dw5 |= GEN6_WM_LINE_AA_WIDTH_1_0; |
| dw5 |= GEN6_WM_LINE_END_CAP_AA_WIDTH_0_5; |
| |
| if (prog_data->base.use_alt_mode) |
| dw2 |= GEN6_WM_FLOATING_POINT_MODE_ALT; |
| |
| dw2 |= (ALIGN(stage_state->sampler_count, 4) / 4) << |
| GEN6_WM_SAMPLER_COUNT_SHIFT; |
| |
| dw2 |= ((prog_data->base.binding_table.size_bytes / 4) << |
| GEN6_WM_BINDING_TABLE_ENTRY_COUNT_SHIFT); |
| |
| dw5 |= (devinfo->max_wm_threads - 1) << GEN6_WM_MAX_THREADS_SHIFT; |
| |
| if (prog_data->dispatch_8) |
| dw5 |= GEN6_WM_8_DISPATCH_ENABLE; |
| |
| if (prog_data->dispatch_16) |
| dw5 |= GEN6_WM_16_DISPATCH_ENABLE; |
| |
| dw4 |= prog_data->base.dispatch_grf_start_reg << |
| GEN6_WM_DISPATCH_START_GRF_SHIFT_0; |
| dw4 |= prog_data->dispatch_grf_start_reg_2 << |
| GEN6_WM_DISPATCH_START_GRF_SHIFT_2; |
| |
| ksp0 = stage_state->prog_offset; |
| ksp2 = stage_state->prog_offset + prog_data->prog_offset_2; |
| |
| if (dual_source_blend_enable) |
| dw5 |= GEN6_WM_DUAL_SOURCE_BLEND_ENABLE; |
| |
| if (line_stipple_enable) |
| dw5 |= GEN6_WM_LINE_STIPPLE_ENABLE; |
| |
| if (polygon_stipple_enable) |
| dw5 |= GEN6_WM_POLYGON_STIPPLE_ENABLE; |
| |
| if (prog_data->uses_src_depth) |
| dw5 |= GEN6_WM_USES_SOURCE_DEPTH; |
| if (prog_data->uses_src_w) |
| dw5 |= GEN6_WM_USES_SOURCE_W; |
| if (prog_data->computed_depth_mode != BRW_PSCDEPTH_OFF) |
| dw5 |= GEN6_WM_COMPUTED_DEPTH; |
| dw6 |= prog_data->barycentric_interp_modes << |
| GEN6_WM_BARYCENTRIC_INTERPOLATION_MODE_SHIFT; |
| |
| if (kill_enable) |
| dw5 |= GEN6_WM_KILL_ENABLE; |
| |
| if (color_buffer_write_enable || |
| dw5 & (GEN6_WM_KILL_ENABLE | GEN6_WM_COMPUTED_DEPTH)) |
| dw5 |= GEN6_WM_DISPATCH_ENABLE; |
| |
| /* 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 (prog_data->uses_omask) |
| dw5 |= GEN6_WM_OMASK_TO_RENDER_TARGET; |
| |
| dw6 |= prog_data->num_varying_inputs << |
| GEN6_WM_NUM_SF_OUTPUTS_SHIFT; |
| if (multisampled_fbo) { |
| if (msaa_enabled) |
| dw6 |= GEN6_WM_MSRAST_ON_PATTERN; |
| else |
| dw6 |= GEN6_WM_MSRAST_OFF_PIXEL; |
| |
| if (prog_data->persample_dispatch) |
| dw6 |= GEN6_WM_MSDISPMODE_PERSAMPLE; |
| else { |
| dw6 |= GEN6_WM_MSDISPMODE_PERPIXEL; |
| } |
| } else { |
| dw6 |= GEN6_WM_MSRAST_OFF_PIXEL; |
| dw6 |= GEN6_WM_MSDISPMODE_PERSAMPLE; |
| } |
| |
| /* 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 (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(ksp0); |
| OUT_BATCH(dw2); |
| if (prog_data->base.total_scratch) { |
| OUT_RELOC(stage_state->scratch_bo, |
| I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, |
| ffs(stage_state->per_thread_scratch) - 11); |
| } else { |
| OUT_BATCH(0); |
| } |
| OUT_BATCH(dw4); |
| OUT_BATCH(dw5); |
| OUT_BATCH(dw6); |
| OUT_BATCH(0); /* kernel 1 pointer */ |
| OUT_BATCH(ksp2); |
| ADVANCE_BATCH(); |
| } |
| |
| static void |
| upload_wm_state(struct brw_context *brw) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| /* BRW_NEW_FS_PROG_DATA */ |
| const struct brw_wm_prog_data *prog_data = |
| brw_wm_prog_data(brw->wm.base.prog_data); |
| |
| /* _NEW_BUFFERS */ |
| const bool multisampled_fbo = _mesa_geometric_samples(ctx->DrawBuffer) > 1; |
| |
| /* BRW_NEW_FS_PROG_DATA | _NEW_COLOR */ |
| const bool dual_src_blend_enable = prog_data->dual_src_blend && |
| (ctx->Color.BlendEnabled & 1) && |
| ctx->Color.Blend[0]._UsesDualSrc; |
| |
| /* _NEW_COLOR, _NEW_MULTISAMPLE _NEW_BUFFERS */ |
| const bool kill_enable = prog_data->uses_kill || |
| _mesa_is_alpha_test_enabled(ctx) || |
| _mesa_is_alpha_to_coverage_enabled(ctx) || |
| prog_data->uses_omask; |
| |
| /* Rendering against the gl-context is always taken into account. */ |
| const bool statistic_enable = true; |
| |
| /* _NEW_LINE | _NEW_POLYGON | _NEW_BUFFERS | _NEW_COLOR | |
| * _NEW_MULTISAMPLE |
| */ |
| gen6_upload_wm_state(brw, prog_data, &brw->wm.base, |
| multisampled_fbo, |
| dual_src_blend_enable, kill_enable, |
| brw_color_buffer_write_enabled(brw), |
| ctx->Multisample.Enabled, |
| ctx->Line.StippleFlag, ctx->Polygon.StippleFlag, |
| statistic_enable); |
| } |
| |
| const struct brw_tracked_state gen6_wm_state = { |
| .dirty = { |
| .mesa = _NEW_BUFFERS | |
| _NEW_COLOR | |
| _NEW_LINE | |
| _NEW_MULTISAMPLE | |
| _NEW_POLYGON | |
| _NEW_PROGRAM_CONSTANTS, |
| .brw = BRW_NEW_BATCH | |
| BRW_NEW_BLORP | |
| BRW_NEW_FS_PROG_DATA | |
| BRW_NEW_PUSH_CONSTANT_ALLOCATION, |
| }, |
| .emit = upload_wm_state, |
| }; |
