From: Nicolai Hähnle <nicolai.haeh...@amd.com>
This cap indicates that the driver only supports R, RG, RGB and RGBA
formats for PIPE_BUFFER sampler views.
---
src/gallium/docs/source/screen.rst | 4 ++++
src/gallium/drivers/freedreno/freedreno_screen.c | 2 ++
src/gallium/drivers/i915/i915_screen.c | 1 +
src/gallium/drivers/ilo/ilo_screen.c | 2 ++
src/gallium/drivers/llvmpipe/lp_screen.c | 1 +
src/gallium/drivers/nouveau/nv30/nv30_screen.c | 2 ++
src/gallium/drivers/nouveau/nv50/nv50_screen.c | 2 ++
src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 2 ++
src/gallium/drivers/r300/r300_screen.c | 1 +
src/gallium/drivers/r600/r600_pipe.c | 3 +++
src/gallium/drivers/radeonsi/si_pipe.c | 3 +++
src/gallium/drivers/softpipe/sp_screen.c | 2 ++
src/gallium/drivers/svga/svga_screen.c | 1 +
src/gallium/drivers/vc4/vc4_screen.c | 1 +
src/gallium/drivers/virgl/virgl_screen.c | 2 ++
src/gallium/include/pipe/p_defines.h | 1 +
16 files changed, 30 insertions(+)
diff --git a/src/gallium/docs/source/screen.rst
b/src/gallium/docs/source/screen.rst
index d7ea123..06cb56d 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -138,6 +138,10 @@ The integer capabilities:
* ``PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT``: Describes the required
alignment for pipe_sampler_view::u.buf.first_element, in bytes.
If a driver does not support first/last_element, it should return 0.
+* ``PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY``: Whether the driver only
+ supports R, RG, RGB and RGBA formats for PIPE_BUFFER sampler views.
+ When this is the case it should be assumed that the swizzle parameters
+ in the sampler view have no effect.
* ``PIPE_CAP_TGSI_TEXCOORD``: This CAP describes a hw limitation.
If true, the hardware cannot replace arbitrary shader inputs with sprite
coordinates and hence the inputs that are desired to be replaceable must
diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c
b/src/gallium/drivers/freedreno/freedreno_screen.c
index 6562924..69a55d4 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -182,6 +182,8 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum
pipe_cap param)
case PIPE_CAP_CLIP_HALFZ:
return is_a3xx(screen) || is_a4xx(screen);
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
+ return 0;
case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
if (is_a3xx(screen)) return 16;
if (is_a4xx(screen)) return 32;
diff --git a/src/gallium/drivers/i915/i915_screen.c
b/src/gallium/drivers/i915/i915_screen.c
index ede5558..fc4708c 100644
--- a/src/gallium/drivers/i915/i915_screen.c
+++ b/src/gallium/drivers/i915/i915_screen.c
@@ -261,6 +261,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap
cap)
case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
case PIPE_CAP_INVALIDATE_BUFFER:
case PIPE_CAP_GENERATE_MIPMAP:
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
return 0;
case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
diff --git a/src/gallium/drivers/ilo/ilo_screen.c
b/src/gallium/drivers/ilo/ilo_screen.c
index fa32757..7711c19 100644
--- a/src/gallium/drivers/ilo/ilo_screen.c
+++ b/src/gallium/drivers/ilo/ilo_screen.c
@@ -428,6 +428,8 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap
param)
case PIPE_CAP_CUBE_MAP_ARRAY:
case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
return true;
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
+ return 0;
case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
return 1;
case PIPE_CAP_TGSI_TEXCOORD:
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c
b/src/gallium/drivers/llvmpipe/lp_screen.c
index fb52f5d..e9078e5 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -310,6 +310,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum
pipe_cap param)
case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
case PIPE_CAP_INVALIDATE_BUFFER:
case PIPE_CAP_GENERATE_MIPMAP:
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
return 0;
}
/* should only get here on unhandled cases */
diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
index 933330f..1ae557d 100644
--- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
@@ -75,6 +75,8 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum
pipe_cap param)
return 1;
case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
return 2048;
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
+ return 0;
/* supported capabilities */
case PIPE_CAP_TWO_SIDED_STENCIL:
case PIPE_CAP_ANISOTROPIC_FILTER:
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index 712835c..99d7ae6 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -121,6 +121,8 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum
pipe_cap param)
return 256;
case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
return 1; /* 256 for binding as RT, but that's not possible in GL */
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
+ return 0;
case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
return NOUVEAU_MIN_BUFFER_MAP_ALIGN;
case PIPE_CAP_MAX_VIEWPORTS:
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index 7211df9..612f1c0 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -111,6 +111,8 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum
pipe_cap param)
return 256;
case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
return 1; /* 256 for binding as RT, but that's not possible in GL */
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
+ return 0;
case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
return NOUVEAU_MIN_BUFFER_MAP_ALIGN;
case PIPE_CAP_MAX_VIEWPORTS:
diff --git a/src/gallium/drivers/r300/r300_screen.c
b/src/gallium/drivers/r300/r300_screen.c
index 8823b8d..478e049 100644
--- a/src/gallium/drivers/r300/r300_screen.c
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -209,6 +209,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum
pipe_cap param)
case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
case PIPE_CAP_INVALIDATE_BUFFER:
case PIPE_CAP_GENERATE_MIPMAP:
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
return 0;
/* SWTCL-only features. */
diff --git a/src/gallium/drivers/r600/r600_pipe.c
b/src/gallium/drivers/r600/r600_pipe.c
index 08fdd36..b49c753 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -336,6 +336,9 @@ static int r600_get_param(struct pipe_screen* pscreen, enum
pipe_cap param)
/* kernel command checker support is also required */
return family >= CHIP_CEDAR && rscreen->b.info.drm_minor >= 41;
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
+ return family >= CHIP_CEDAR ? 0 : 1;
+
/* Unsupported features. */
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c
b/src/gallium/drivers/radeonsi/si_pipe.c
index f6ff4a8..f6c3544 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -335,6 +335,9 @@ static int si_get_param(struct pipe_screen* pscreen, enum
pipe_cap param)
case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
return MIN2(sscreen->b.info.vram_size, 0xFFFFFFFF);
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
+ return 0;
+
/* Unsupported features. */
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
diff --git a/src/gallium/drivers/softpipe/sp_screen.c
b/src/gallium/drivers/softpipe/sp_screen.c
index 143702a..aa227b6 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -179,6 +179,8 @@ softpipe_get_param(struct pipe_screen *screen, enum
pipe_cap param)
return 1;
case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
return 1;
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
+ return 0;
case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
return 65536;
case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
diff --git a/src/gallium/drivers/svga/svga_screen.c
b/src/gallium/drivers/svga/svga_screen.c
index b21634f..83238e2 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -395,6 +395,7 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap
param)
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_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
return 0;
}
diff --git a/src/gallium/drivers/vc4/vc4_screen.c
b/src/gallium/drivers/vc4/vc4_screen.c
index fb41877..f9f7d02 100644
--- a/src/gallium/drivers/vc4/vc4_screen.c
+++ b/src/gallium/drivers/vc4/vc4_screen.c
@@ -127,6 +127,7 @@ vc4_screen_get_param(struct pipe_screen *pscreen, enum
pipe_cap param)
/* Unsupported features. */
case PIPE_CAP_ANISOTROPIC_FILTER:
case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
case PIPE_CAP_CUBE_MAP_ARRAY:
case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
diff --git a/src/gallium/drivers/virgl/virgl_screen.c
b/src/gallium/drivers/virgl/virgl_screen.c
index fb2e567..5e6d629 100644
--- a/src/gallium/drivers/virgl/virgl_screen.c
+++ b/src/gallium/drivers/virgl/virgl_screen.c
@@ -169,6 +169,8 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap
param)
return vscreen->caps.caps.v1.max_tbo_size > 0;
case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
return 0;
+ case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
+ return 0;
case PIPE_CAP_CUBE_MAP_ARRAY:
return vscreen->caps.caps.v1.bset.cube_map_array;
case PIPE_CAP_TEXTURE_MULTISAMPLE:
diff --git a/src/gallium/include/pipe/p_defines.h
b/src/gallium/include/pipe/p_defines.h
index cb837cd..2cd0918 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -588,6 +588,7 @@ enum pipe_cap
PIPE_CAP_CUBE_MAP_ARRAY,
PIPE_CAP_TEXTURE_BUFFER_OBJECTS,
PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT,
+ PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY,
PIPE_CAP_TGSI_TEXCOORD,
PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER,
PIPE_CAP_QUERY_PIPELINE_STATISTICS,
--
2.5.0
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