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gallium: add PIPE_CAP_FBFETCH_ZS and expose extension 

st/mesa will expose GL_ARM_shader_framebuffer_fetch_depth_stencil
if this new capability is supported by the driver.

Signed-off-by: Pavel Asyutchenko <sventeam@yandex.ru>
Reviewed-by: Alyssa Rosenzweig <alyssa@collabora.com>
Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13979>
This commit is contained in:
Pavel Asyutchenko 2021-09-01 23:25:16 +03:00 committed by Marge Bot
parent 68e8940114
commit 41f22a1823
7 changed files with 10 additions and 1 deletions
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1
docs/features.txt
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@ -316,6 +316,7 @@ Khronos, ARB, and OES extensions that are not part of any OpenGL or OpenGL ES ve
GL_ARB_sparse_texture2 DONE (radeonsi/gfx9+, zink)
GL_ARB_sparse_texture_clamp DONE (radeonsi/gfx9+, zink)
GL_ARB_texture_filter_minmax DONE (nvc0/gm200+, zink)
GL_ARM_shader_framebuffer_fetch_depth_stencil DONE (llvmpipe)
GL_EXT_color_buffer_half_float DONE (freedreno, i965, iris, llvmpipe, nv50, nvc0, radeonsi, zink)
GL_EXT_depth_bounds_test DONE (i965/gen12+, nv50, nvc0, radeonsi, softpipe, zink)
GL_EXT_memory_object DONE (radeonsi, i965/gen7+, llvmpipe, zink)

2
docs/gallium/screen.rst
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@ -424,6 +424,8 @@ The integer capabilities:
and a larger value would mean that multiple render targets are supported.
* ``PIPE_CAP_FBFETCH_COHERENT``: Whether framebuffer fetches from the fragment
shader can be guaranteed to be coherent with framebuffer writes.
* ``PIPE_CAP_FBFETCH_ZS``: Whether fragment shader can fetch current values of
Z/S attachments. These fetches are always coherent with framebuffer writes.
* ``PIPE_CAP_LEGACY_MATH_RULES``: Whether NIR shaders support the
``shader_info.use_legacy_math_rules`` flag (see documentation there), and
TGSI shaders support the corresponding ``TGSI_PROPERTY_LEGACY_MATH_RULES``.

1
src/gallium/auxiliary/util/u_screen.c
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@ -308,6 +308,7 @@ u_pipe_screen_get_param_defaults(struct pipe_screen *pscreen,
case PIPE_CAP_FBFETCH:
case PIPE_CAP_FBFETCH_COHERENT:
case PIPE_CAP_FBFETCH_ZS:
case PIPE_CAP_BLEND_EQUATION_ADVANCED:
case PIPE_CAP_LEGACY_MATH_RULES:
case PIPE_CAP_DOUBLES:

1
src/gallium/include/pipe/p_defines.h
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@ -1011,6 +1011,7 @@ enum pipe_cap
PIPE_CAP_MAX_CONSTANT_BUFFER_SIZE_UINT,
PIPE_CAP_HARDWARE_GL_SELECT,
PIPE_CAP_DITHERING,
PIPE_CAP_FBFETCH_ZS,
PIPE_CAP_LAST,
/* XXX do not add caps after PIPE_CAP_LAST! */

1
src/mesa/main/consts_exts.h
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@ -234,6 +234,7 @@ struct gl_extensions
GLboolean AMD_vertex_shader_viewport_index;
GLboolean ANDROID_extension_pack_es31a;
GLboolean APPLE_object_purgeable;
GLboolean ARM_shader_framebuffer_fetch_depth_stencil;
GLboolean ATI_meminfo;
GLboolean ATI_texture_compression_3dc;
GLboolean ATI_texture_mirror_once;

2
src/mesa/main/extensions_table.h
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@ -200,6 +200,8 @@ EXT(ARB_vertex_type_2_10_10_10_rev , ARB_vertex_type_2_10_10_10_rev
EXT(ARB_viewport_array , ARB_viewport_array , GLL, GLC, x , x , 2010)
EXT(ARB_window_pos , dummy_true , GLL, x , x , x , 2001)
EXT(ARM_shader_framebuffer_fetch_depth_stencil, ARM_shader_framebuffer_fetch_depth_stencil, GLL, GLC, x , ES2, 2014)
EXT(ATI_blend_equation_separate , EXT_blend_equation_separate , GLL, GLC, x , x , 2003)
EXT(ATI_draw_buffers , dummy_true , GLL, x , x , x , 2002)
EXT(ATI_fragment_shader , ATI_fragment_shader , GLL, x , x , x , 2001)

3
src/mesa/state_tracker/st_extensions.c
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@ -874,7 +874,8 @@ void st_init_extensions(struct pipe_screen *screen,
{ o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
{ o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
{ o(OES_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
{ o(INTEL_blackhole_render), PIPE_CAP_FRONTEND_NOOP, },
{ o(INTEL_blackhole_render), PIPE_CAP_FRONTEND_NOOP },
{ o(ARM_shader_framebuffer_fetch_depth_stencil), PIPE_CAP_FBFETCH_ZS },
};
/* Required: render target and sampler support */