diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/Makefile.sources | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vs.c | 102 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vue_map.c | 136 |
3 files changed, 137 insertions, 102 deletions
diff --git a/src/mesa/drivers/dri/i965/Makefile.sources b/src/mesa/drivers/dri/i965/Makefile.sources index 93f336e4b72..981fe79b132 100644 --- a/src/mesa/drivers/dri/i965/Makefile.sources +++ b/src/mesa/drivers/dri/i965/Makefile.sources @@ -130,6 +130,7 @@ i965_FILES = \ brw_vs.h \ brw_vs_state.c \ brw_vs_surface_state.c \ + brw_vue_map.c \ brw_wm.c \ brw_wm.h \ brw_wm_iz.cpp \ diff --git a/src/mesa/drivers/dri/i965/brw_vs.c b/src/mesa/drivers/dri/i965/brw_vs.c index d03567e33b8..6e9848fb1e9 100644 --- a/src/mesa/drivers/dri/i965/brw_vs.c +++ b/src/mesa/drivers/dri/i965/brw_vs.c @@ -40,108 +40,6 @@ #include "util/ralloc.h" -static inline void assign_vue_slot(struct brw_vue_map *vue_map, - int varying) -{ - /* Make sure this varying hasn't been assigned a slot already */ - assert (vue_map->varying_to_slot[varying] == -1); - - vue_map->varying_to_slot[varying] = vue_map->num_slots; - vue_map->slot_to_varying[vue_map->num_slots++] = varying; -} - -/** - * Compute the VUE map for vertex shader program. - */ -void -brw_compute_vue_map(const struct brw_device_info *devinfo, - struct brw_vue_map *vue_map, - GLbitfield64 slots_valid) -{ - vue_map->slots_valid = slots_valid; - int i; - - /* gl_Layer and gl_ViewportIndex don't get their own varying slots -- they - * are stored in the first VUE slot (VARYING_SLOT_PSIZ). - */ - slots_valid &= ~(VARYING_BIT_LAYER | VARYING_BIT_VIEWPORT); - - /* Make sure that the values we store in vue_map->varying_to_slot and - * vue_map->slot_to_varying won't overflow the signed chars that are used - * to store them. Note that since vue_map->slot_to_varying sometimes holds - * values equal to BRW_VARYING_SLOT_COUNT, we need to ensure that - * BRW_VARYING_SLOT_COUNT is <= 127, not 128. - */ - STATIC_ASSERT(BRW_VARYING_SLOT_COUNT <= 127); - - vue_map->num_slots = 0; - for (i = 0; i < BRW_VARYING_SLOT_COUNT; ++i) { - vue_map->varying_to_slot[i] = -1; - vue_map->slot_to_varying[i] = BRW_VARYING_SLOT_COUNT; - } - - /* VUE header: format depends on chip generation and whether clipping is - * enabled. - */ - if (devinfo->gen < 6) { - /* There are 8 dwords in VUE header pre-Ironlake: - * dword 0-3 is indices, point width, clip flags. - * dword 4-7 is ndc position - * dword 8-11 is the first vertex data. - * - * On Ironlake the VUE header is nominally 20 dwords, but the hardware - * will accept the same header layout as Gen4 [and should be a bit faster] - */ - assign_vue_slot(vue_map, VARYING_SLOT_PSIZ); - assign_vue_slot(vue_map, BRW_VARYING_SLOT_NDC); - assign_vue_slot(vue_map, VARYING_SLOT_POS); - } else { - /* There are 8 or 16 DWs (D0-D15) in VUE header on Sandybridge: - * dword 0-3 of the header is indices, point width, clip flags. - * dword 4-7 is the 4D space position - * dword 8-15 of the vertex header is the user clip distance if - * enabled. - * dword 8-11 or 16-19 is the first vertex element data we fill. - */ - assign_vue_slot(vue_map, VARYING_SLOT_PSIZ); - assign_vue_slot(vue_map, VARYING_SLOT_POS); - if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_CLIP_DIST0)) - assign_vue_slot(vue_map, VARYING_SLOT_CLIP_DIST0); - if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_CLIP_DIST1)) - assign_vue_slot(vue_map, VARYING_SLOT_CLIP_DIST1); - - /* front and back colors need to be consecutive so that we can use - * ATTRIBUTE_SWIZZLE_INPUTATTR_FACING to swizzle them when doing - * two-sided color. - */ - if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_COL0)) - assign_vue_slot(vue_map, VARYING_SLOT_COL0); - if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_BFC0)) - assign_vue_slot(vue_map, VARYING_SLOT_BFC0); - if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_COL1)) - assign_vue_slot(vue_map, VARYING_SLOT_COL1); - if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_BFC1)) - assign_vue_slot(vue_map, VARYING_SLOT_BFC1); - } - - /* The hardware doesn't care about the rest of the vertex outputs, so just - * assign them contiguously. Don't reassign outputs that already have a - * slot. - * - * We generally don't need to assign a slot for VARYING_SLOT_CLIP_VERTEX, - * since it's encoded as the clip distances by emit_clip_distances(). - * However, it may be output by transform feedback, and we'd rather not - * recompute state when TF changes, so we just always include it. - */ - for (int i = 0; i < VARYING_SLOT_MAX; ++i) { - if ((slots_valid & BITFIELD64_BIT(i)) && - vue_map->varying_to_slot[i] == -1) { - assign_vue_slot(vue_map, i); - } - } -} - - /** * Decide which set of clip planes should be used when clipping via * gl_Position or gl_ClipVertex. diff --git a/src/mesa/drivers/dri/i965/brw_vue_map.c b/src/mesa/drivers/dri/i965/brw_vue_map.c new file mode 100644 index 00000000000..ff92bd266a4 --- /dev/null +++ b/src/mesa/drivers/dri/i965/brw_vue_map.c @@ -0,0 +1,136 @@ +/* + * Copyright © 2011 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. + */ + +/** + * @file brw_vue_map.c + * + * Authors: + * Paul Berry <[email protected]> + * Chris Forbes <[email protected]> + * Eric Anholt <[email protected]> + */ + + +#include "main/compiler.h" +#include "brw_context.h" + +static inline void +assign_vue_slot(struct brw_vue_map *vue_map, int varying) +{ + /* Make sure this varying hasn't been assigned a slot already */ + assert (vue_map->varying_to_slot[varying] == -1); + + vue_map->varying_to_slot[varying] = vue_map->num_slots; + vue_map->slot_to_varying[vue_map->num_slots++] = varying; +} + +/** + * Compute the VUE map for vertex shader program. + */ +void +brw_compute_vue_map(const struct brw_device_info *devinfo, + struct brw_vue_map *vue_map, + GLbitfield64 slots_valid) +{ + vue_map->slots_valid = slots_valid; + int i; + + /* gl_Layer and gl_ViewportIndex don't get their own varying slots -- they + * are stored in the first VUE slot (VARYING_SLOT_PSIZ). + */ + slots_valid &= ~(VARYING_BIT_LAYER | VARYING_BIT_VIEWPORT); + + /* Make sure that the values we store in vue_map->varying_to_slot and + * vue_map->slot_to_varying won't overflow the signed chars that are used + * to store them. Note that since vue_map->slot_to_varying sometimes holds + * values equal to BRW_VARYING_SLOT_COUNT, we need to ensure that + * BRW_VARYING_SLOT_COUNT is <= 127, not 128. + */ + STATIC_ASSERT(BRW_VARYING_SLOT_COUNT <= 127); + + vue_map->num_slots = 0; + for (i = 0; i < BRW_VARYING_SLOT_COUNT; ++i) { + vue_map->varying_to_slot[i] = -1; + vue_map->slot_to_varying[i] = BRW_VARYING_SLOT_COUNT; + } + + /* VUE header: format depends on chip generation and whether clipping is + * enabled. + */ + if (devinfo->gen < 6) { + /* There are 8 dwords in VUE header pre-Ironlake: + * dword 0-3 is indices, point width, clip flags. + * dword 4-7 is ndc position + * dword 8-11 is the first vertex data. + * + * On Ironlake the VUE header is nominally 20 dwords, but the hardware + * will accept the same header layout as Gen4 [and should be a bit faster] + */ + assign_vue_slot(vue_map, VARYING_SLOT_PSIZ); + assign_vue_slot(vue_map, BRW_VARYING_SLOT_NDC); + assign_vue_slot(vue_map, VARYING_SLOT_POS); + } else { + /* There are 8 or 16 DWs (D0-D15) in VUE header on Sandybridge: + * dword 0-3 of the header is indices, point width, clip flags. + * dword 4-7 is the 4D space position + * dword 8-15 of the vertex header is the user clip distance if + * enabled. + * dword 8-11 or 16-19 is the first vertex element data we fill. + */ + assign_vue_slot(vue_map, VARYING_SLOT_PSIZ); + assign_vue_slot(vue_map, VARYING_SLOT_POS); + if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_CLIP_DIST0)) + assign_vue_slot(vue_map, VARYING_SLOT_CLIP_DIST0); + if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_CLIP_DIST1)) + assign_vue_slot(vue_map, VARYING_SLOT_CLIP_DIST1); + + /* front and back colors need to be consecutive so that we can use + * ATTRIBUTE_SWIZZLE_INPUTATTR_FACING to swizzle them when doing + * two-sided color. + */ + if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_COL0)) + assign_vue_slot(vue_map, VARYING_SLOT_COL0); + if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_BFC0)) + assign_vue_slot(vue_map, VARYING_SLOT_BFC0); + if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_COL1)) + assign_vue_slot(vue_map, VARYING_SLOT_COL1); + if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_BFC1)) + assign_vue_slot(vue_map, VARYING_SLOT_BFC1); + } + + /* The hardware doesn't care about the rest of the vertex outputs, so just + * assign them contiguously. Don't reassign outputs that already have a + * slot. + * + * We generally don't need to assign a slot for VARYING_SLOT_CLIP_VERTEX, + * since it's encoded as the clip distances by emit_clip_distances(). + * However, it may be output by transform feedback, and we'd rather not + * recompute state when TF changes, so we just always include it. + */ + for (int i = 0; i < VARYING_SLOT_MAX; ++i) { + if ((slots_valid & BITFIELD64_BIT(i)) && + vue_map->varying_to_slot[i] == -1) { + assign_vue_slot(vue_map, i); + } + } +} |