diff options
Diffstat (limited to 'src/gallium/drivers/i965simple/brw_wm_state.c')
| -rw-r--r-- | src/gallium/drivers/i965simple/brw_wm_state.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965simple/brw_wm_state.c b/src/gallium/drivers/i965simple/brw_wm_state.c new file mode 100644 index 0000000000..5ccd488842 --- /dev/null +++ b/src/gallium/drivers/i965simple/brw_wm_state.c @@ -0,0 +1,194 @@ +/* + Copyright (C) Intel Corp. 2006. All Rights Reserved. + Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to + develop this 3D driver. + + 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 COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "brw_context.h" +#include "brw_state.h" +#include "brw_defines.h" +#include "brw_wm.h" +#include "pipe/p_util.h" + +/*********************************************************************** + * WM unit - fragment programs and rasterization + */ +static void upload_wm_unit(struct brw_context *brw ) +{ + struct brw_wm_unit_state wm; + unsigned max_threads; + unsigned per_thread; + + if (BRW_DEBUG & DEBUG_SINGLE_THREAD) + max_threads = 0; + else + max_threads = 31; + + + memset(&wm, 0, sizeof(wm)); + + /* CACHE_NEW_WM_PROG */ + wm.thread0.grf_reg_count = align(brw->wm.prog_data->total_grf, 16) / 16 - 1; + wm.thread0.kernel_start_pointer = brw->wm.prog_gs_offset >> 6; + wm.thread3.dispatch_grf_start_reg = brw->wm.prog_data->first_curbe_grf; + wm.thread3.urb_entry_read_length = brw->wm.prog_data->urb_read_length; + wm.thread3.const_urb_entry_read_length = brw->wm.prog_data->curb_read_length; + + wm.wm5.max_threads = max_threads; + + per_thread = align(brw->wm.prog_data->total_scratch, 1024); + assert(per_thread <= 12 * 1024); + +#if 0 + if (brw->wm.prog_data->total_scratch) { + unsigned total = per_thread * (max_threads + 1); + + /* Scratch space -- just have to make sure there is sufficient + * allocated for the active program and current number of threads. + */ + brw->wm.scratch_buffer_size = total; + if (brw->wm.scratch_buffer && + brw->wm.scratch_buffer_size > brw->wm.scratch_buffer->size) { + dri_bo_unreference(brw->wm.scratch_buffer); + brw->wm.scratch_buffer = NULL; + } + if (!brw->wm.scratch_buffer) { + brw->wm.scratch_buffer = dri_bo_alloc(intel->intelScreen->bufmgr, + "wm scratch", + brw->wm.scratch_buffer_size, + 4096, DRM_BO_FLAG_MEM_TT); + } + } + /* XXX: Scratch buffers are not implemented correectly. + * + * The scratch offset to be programmed into wm is relative to the general + * state base address. However, using dri_bo_alloc/dri_bo_emit_reloc (or + * the previous bmGenBuffers scheme), we get an offset relative to the + * start of framebuffer. Even before then, it was broken in other ways, + * so just fail for now if we hit that path. + */ + assert(brw->wm.prog_data->total_scratch == 0); +#endif + + /* CACHE_NEW_SURFACE */ + wm.thread1.binding_table_entry_count = brw->wm.nr_surfaces; + + /* BRW_NEW_CURBE_OFFSETS */ + wm.thread3.const_urb_entry_read_offset = brw->curbe.wm_start * 2; + + wm.thread3.urb_entry_read_offset = 0; + wm.thread1.depth_coef_urb_read_offset = 1; + wm.thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754; + + /* CACHE_NEW_SAMPLER */ + wm.wm4.sampler_count = (brw->wm.sampler_count + 1) / 4; + wm.wm4.sampler_state_pointer = brw->wm.sampler_gs_offset >> 5; + + /* BRW_NEW_FRAGMENT_PROGRAM */ + { + const struct brw_fragment_program *fp = brw->attribs.FragmentProgram; + + if (fp->UsesDepth) + wm.wm5.program_uses_depth = 1; /* as far as we can tell */ + + if (fp->ComputesDepth) + wm.wm5.program_computes_depth = 1; + + /* BRW_NEW_ALPHA_TEST */ + if (fp->UsesKill || + brw->attribs.DepthStencil->alpha.enabled) + wm.wm5.program_uses_killpixel = 1; + + wm.wm5.enable_8_pix = 1; + } + + wm.wm5.thread_dispatch_enable = 1; /* AKA: color_write */ + wm.wm5.legacy_line_rast = 0; + wm.wm5.legacy_global_depth_bias = 0; + wm.wm5.early_depth_test = 1; /* never need to disable */ + wm.wm5.line_aa_region_width = 0; + wm.wm5.line_endcap_aa_region_width = 1; + + /* BRW_NEW_RASTERIZER */ + if (brw->attribs.Raster->poly_stipple_enable) + wm.wm5.polygon_stipple = 1; + +#if 0 + if (brw->attribs.Polygon->OffsetFill) { + wm.wm5.depth_offset = 1; + /* Something wierd going on with legacy_global_depth_bias, + * offset_constant, scaling and MRD. This value passes glean + * but gives some odd results elsewere (eg. the + * quad-offset-units test). + */ + wm.global_depth_offset_constant = brw->attribs.Polygon->OffsetUnits * 2; + + /* This is the only value that passes glean: + */ + wm.global_depth_offset_scale = brw->attribs.Polygon->OffsetFactor; + } +#endif + + if (brw->attribs.Raster->line_stipple_enable) { + wm.wm5.line_stipple = 1; + } + + if (BRW_DEBUG & DEBUG_STATS) + wm.wm4.stats_enable = 1; + + brw->wm.state_gs_offset = brw_cache_data( &brw->cache[BRW_WM_UNIT], &wm ); + + if (brw->wm.prog_data->total_scratch) { + /* + dri_emit_reloc(brw->cache[BRW_WM_UNIT].pool->buffer, + DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, + (per_thread / 1024) - 1, + brw->wm.state_gs_offset + + ((char *)&wm.thread2 - (char *)&wm), + brw->wm.scratch_buffer); + */ + } else { + wm.thread2.scratch_space_base_pointer = 0; + } +} + +const struct brw_tracked_state brw_wm_unit = { + .dirty = { + .brw = (BRW_NEW_RASTERIZER | + BRW_NEW_ALPHA_TEST | + BRW_NEW_FS | + BRW_NEW_CURBE_OFFSETS), + + .cache = (CACHE_NEW_SURFACE | + CACHE_NEW_WM_PROG | + CACHE_NEW_SAMPLER) + }, + .update = upload_wm_unit +}; + |