KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

gallium: rename sysval caps 

These aren't spiecic to TGSI any more, so let's rename them to reflect
reality.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Acked-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Juan A. Suarez <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15316>
This commit is contained in:
Erik Faye-Lund 2022-03-14 09:33:45 +01:00 committed by Marge Bot
parent df40de91d9
commit 350329feb1
26 changed files with 57 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
docs/gallium/screen.rst
View File

@ -329,11 +329,11 @@ The integer capabilities:
supported in vertex shaders.
* ``PIPE_CAP_SHADER_PACK_HALF_FLOAT``: Whether packed 16-bit float
packing/unpacking opcodes are supported.
* ``PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL``: If gallium frontends should use
a system value for the POSITION fragment shader input.
* ``PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL``: If gallium frontends should use
a system value for the POINT fragment shader input.
* ``PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL``: If gallium frontends should use
* ``PIPE_CAP_FS_POSITION_IS_SYSVAL``: If gallium frontends should use a
system value for the POSITION fragment shader input.
* ``PIPE_CAP_FS_POINT_IS_SYSVAL``: If gallium frontends should use a system
value for the POINT fragment shader input.
* ``PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL``: If gallium frontends should use
a system value for the FACE fragment shader input.
Also, the FACE system value is integer, not float.
* ``PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT``: Describes the required

2
src/gallium/auxiliary/draw/draw_pipe_pstipple.c
View File

@ -133,7 +133,7 @@ generate_pstip_fs(struct pstip_stage *pstip)
struct pipe_shader_state pstip_fs;
enum tgsi_file_type wincoord_file;
wincoord_file = screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL) ?
wincoord_file = screen->get_param(screen, PIPE_CAP_FS_POSITION_IS_SYSVAL) ?
TGSI_FILE_SYSTEM_VALUE : TGSI_FILE_INPUT;
pstip_fs = *orig_fs; /* copy to init */

6
src/gallium/auxiliary/nir/tgsi_to_nir.c
View File

@ -2273,9 +2273,9 @@ ttn_read_pipe_caps(struct ttn_compile *c,
struct pipe_screen *screen)
{
c->cap_samplers_as_deref = screen->get_param(screen, PIPE_CAP_NIR_SAMPLERS_AS_DEREF);
c->cap_face_is_sysval = screen->get_param(screen, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL);
c->cap_position_is_sysval = screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL);
c->cap_point_is_sysval = screen->get_param(screen, PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL);
c->cap_face_is_sysval = screen->get_param(screen, PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL);
c->cap_position_is_sysval = screen->get_param(screen, PIPE_CAP_FS_POSITION_IS_SYSVAL);
c->cap_point_is_sysval = screen->get_param(screen, PIPE_CAP_FS_POINT_IS_SYSVAL);
}
/**

6
src/gallium/auxiliary/util/u_screen.c
View File

@ -249,9 +249,9 @@ u_pipe_screen_get_param_defaults(struct pipe_screen *pscreen,
case PIPE_CAP_SHADER_PACK_HALF_FLOAT:
case PIPE_CAP_MULTI_DRAW_INDIRECT:
case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_FS_POINT_IS_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
return 0;
case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:

2
src/gallium/auxiliary/vl/vl_mc.c
View File

@ -86,7 +86,7 @@ calc_line(struct pipe_screen *screen, struct ureg_program *shader)
tmp = ureg_DECL_temporary(shader);
if (screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL))
if (screen->get_param(screen, PIPE_CAP_FS_POSITION_IS_SYSVAL))
pos = ureg_DECL_system_value(shader, TGSI_SEMANTIC_POSITION, 0);
else
pos = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS,

6
src/gallium/drivers/asahi/agx_pipe.c
View File

@ -786,12 +786,12 @@ agx_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
case PIPE_CAP_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
case PIPE_CAP_FS_COORD_PIXEL_CENTER_INTEGER:
case PIPE_CAP_TGSI_TEXCOORD:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_SEAMLESS_CUBE_MAP:
case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
return true;
case PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL:
case PIPE_CAP_FS_POINT_IS_SYSVAL:
return false;
case PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET:

4
src/gallium/drivers/crocus/crocus_screen.c
View File

@ -189,8 +189,8 @@ crocus_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
case PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS:
case PIPE_CAP_NIR_COMPACT_ARRAYS:
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_INVALIDATE_BUFFER:
case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
case PIPE_CAP_CS_DERIVED_SYSTEM_VALUES_SUPPORTED:

2
src/gallium/drivers/d3d12/d3d12_screen.cpp
View File

@ -223,7 +223,7 @@ d3d12_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_FS_COORD_ORIGIN_UPPER_LEFT:
return 1;
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
return 1;
case PIPE_CAP_ACCELERATED:

6
src/gallium/drivers/etnaviv/etnaviv_screen.c
View File

@ -158,10 +158,10 @@ etna_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
return 1;
case PIPE_CAP_NATIVE_FENCE_FD:
return screen->drm_version >= ETNA_DRM_VERSION_FENCE_FD;
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL: /* note: not integer */
case PIPE_CAP_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL: /* note: not integer */
return 1;
case PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL:
case PIPE_CAP_FS_POINT_IS_SYSVAL:
return 0;
/* Memory */

6
src/gallium/drivers/freedreno/freedreno_screen.c
View File

@ -451,14 +451,14 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
return 0;
case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_TEXCOORD:
if (is_ir3(screen))
return 1;
return 0;
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
return 1;
case PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL:
case PIPE_CAP_FS_POINT_IS_SYSVAL:
return is_a2xx(screen);
case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:

4
src/gallium/drivers/iris/iris_screen.c
View File

@ -233,8 +233,8 @@ iris_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_LOAD_CONSTBUF:
case PIPE_CAP_NIR_COMPACT_ARRAYS:
case PIPE_CAP_DRAW_PARAMETERS:
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_COMPUTE_SHADER_DERIVATIVES:
case PIPE_CAP_INVALIDATE_BUFFER:
case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:

6
src/gallium/drivers/lima/lima_screen.c
View File

@ -119,9 +119,9 @@ lima_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
return 1;
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_FS_POINT_IS_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
return 1;
case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:

2
src/gallium/drivers/llvmpipe/lp_screen.c
View File

@ -345,7 +345,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
return LP_MAX_TGSI_SHADER_BUFFER_SIZE;
case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
case PIPE_CAP_TGSI_TG4_COMPONENT_IN_SWIZZLE:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
case PIPE_CAP_IMAGE_STORE_FORMATTED:
return 1;

4
src/gallium/drivers/nouveau/nv30/nv30_screen.c
View File

@ -193,8 +193,8 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_CLEAR_TEXTURE:
case PIPE_CAP_DRAW_PARAMETERS:
case PIPE_CAP_SHADER_PACK_HALF_FLOAT:
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
case PIPE_CAP_INVALIDATE_BUFFER:
case PIPE_CAP_GENERATE_MIPMAP:

6
src/gallium/drivers/nouveau/nv50/nv50_screen.c
View File

@ -242,7 +242,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_TGSI_TXQS:
case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
case PIPE_CAP_CLEAR_TEXTURE:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_INVALIDATE_BUFFER:
case PIPE_CAP_STRING_MARKER:
case PIPE_CAP_CULL_DISTANCE:
@ -313,8 +313,8 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
case PIPE_CAP_DRAW_PARAMETERS:
case PIPE_CAP_SHADER_PACK_HALF_FLOAT:
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL:
case PIPE_CAP_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_FS_POINT_IS_SYSVAL:
case PIPE_CAP_GENERATE_MIPMAP:
case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:

6
src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
View File

@ -278,7 +278,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_SHADER_PACK_HALF_FLOAT:
case PIPE_CAP_MULTI_DRAW_INDIRECT:
case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_QUERY_BUFFER_OBJECT:
case PIPE_CAP_INVALIDATE_BUFFER:
case PIPE_CAP_STRING_MARKER:
@ -372,8 +372,8 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
case PIPE_CAP_VERTEXID_NOBASE:
case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL:
case PIPE_CAP_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_FS_POINT_IS_SYSVAL:
case PIPE_CAP_GENERATE_MIPMAP:
case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:

6
src/gallium/drivers/panfrost/pan_screen.c
View File

@ -234,9 +234,9 @@ panfrost_get_param(struct pipe_screen *screen, enum pipe_cap param)
return 1;
/* We would prefer varyings on Midgard, but proper sysvals on Bifrost */
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_FS_POINT_IS_SYSVAL:
return dev->arch >= 6;
case PIPE_CAP_SEAMLESS_CUBE_MAP:

4
src/gallium/drivers/radeonsi/si_get.c
View File

@ -113,8 +113,8 @@ static int si_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_TGSI_TXQS:
case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_INVALIDATE_BUFFER:
case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
case PIPE_CAP_QUERY_BUFFER_OBJECT:

2
src/gallium/drivers/v3d/v3d_screen.c
View File

@ -136,7 +136,7 @@ v3d_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_SHADER_PACK_HALF_FLOAT:
case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_TGSI_TEXCOORD:
case PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE:
case PIPE_CAP_SAMPLER_VIEW_TARGET:

2
src/gallium/drivers/vc4/vc4_screen.c
View File

@ -163,7 +163,7 @@ vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_FS_COORD_ORIGIN_UPPER_LEFT:
case PIPE_CAP_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
return 1;
case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:

2
src/gallium/drivers/zink/zink_screen.c
View File

@ -710,7 +710,7 @@ zink_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_NIR_COMPACT_ARRAYS:
return 1;
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
return 1;
case PIPE_CAP_VIEWPORT_TRANSFORM_LOWERED:

2
src/gallium/frontends/nine/nine_ff.c
View File

@ -1510,7 +1510,7 @@ nine_ff_build_ps(struct NineDevice9 *device, struct nine_ff_ps_key *key)
struct ureg_dst rFog = ureg_writemask(ps.rTmp, TGSI_WRITEMASK_X);
struct ureg_src vPos;
if (device->screen->get_param(device->screen,
PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL)) {
PIPE_CAP_FS_POSITION_IS_SYSVAL)) {
vPos = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_POSITION, 0);
} else {
vPos = ureg_DECL_fs_input(ureg, TGSI_SEMANTIC_POSITION, 0,

4
src/gallium/frontends/nine/nine_shader.c
View File

@ -3627,8 +3627,8 @@ tx_ctor(struct shader_translator *tx, struct pipe_screen *screen, struct nine_sh
tx->shift_wpos = !GET_CAP(FS_COORD_PIXEL_CENTER_INTEGER);
tx->texcoord_sn = tx->want_texcoord ?
TGSI_SEMANTIC_TEXCOORD : TGSI_SEMANTIC_GENERIC;
tx->wpos_is_sysval = GET_CAP(TGSI_FS_POSITION_IS_SYSVAL);
tx->face_is_sysval_integer = GET_CAP(TGSI_FS_FACE_IS_INTEGER_SYSVAL);
tx->wpos_is_sysval = GET_CAP(FS_POSITION_IS_SYSVAL);
tx->face_is_sysval_integer = GET_CAP(FS_FACE_IS_INTEGER_SYSVAL);
if (IS_VS) {
tx->num_constf_allowed = NINE_MAX_CONST_F;

6
src/gallium/include/pipe/p_defines.h
View File

@ -859,9 +859,9 @@ enum pipe_cap
PIPE_CAP_SHADER_PACK_HALF_FLOAT,
PIPE_CAP_MULTI_DRAW_INDIRECT,
PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS,
PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL,
PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL,
PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL,
PIPE_CAP_FS_POSITION_IS_SYSVAL,
PIPE_CAP_FS_POINT_IS_SYSVAL,
PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL,
PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT,
PIPE_CAP_INVALIDATE_BUFFER,
PIPE_CAP_GENERATE_MIPMAP,

6
src/mesa/state_tracker/st_extensions.c
View File

@ -505,11 +505,11 @@ void st_init_limits(struct pipe_screen *screen,
}
c->GLSLFragCoordIsSysVal =
screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL);
screen->get_param(screen, PIPE_CAP_FS_POSITION_IS_SYSVAL);
c->GLSLPointCoordIsSysVal =
screen->get_param(screen, PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL);
screen->get_param(screen, PIPE_CAP_FS_POINT_IS_SYSVAL);
c->GLSLFrontFacingIsSysVal =
screen->get_param(screen, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL);
screen->get_param(screen, PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL);
/* GL_ARB_get_program_binary */
if (screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))

2
src/mesa/state_tracker/st_pbo.c
View File

@ -414,7 +414,7 @@ create_fs(struct st_context *st, bool download,
const nir_shader_compiler_options *options =
st_get_nir_compiler_options(st, MESA_SHADER_FRAGMENT);
bool pos_is_sysval =
screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL);
screen->get_param(screen, PIPE_CAP_FS_POSITION_IS_SYSVAL);
nir_builder b = nir_builder_init_simple_shader(MESA_SHADER_FRAGMENT, options,
download ?