[Mesa-dev] [RFC PATCH 1/8] Gallium: Add new CAPS to indicate whether a driver can switch SRGB write

[Gert Wollny]

From: Gert Wollny <gert.wollny at collabora.com>

Add a new cap that indicates whether the drivers supports
enabling/disabling the conversion from linear space to sRGB
for a framebuffer attachment.

Signed-off-by: Gert Wollny <gert.wollny at collabora.com>
---
 src/gallium/auxiliary/util/u_screen.c | 3 +++
 src/gallium/docs/source/screen.rst    | 3 +++
 src/gallium/include/pipe/p_defines.h  | 1 +
 3 files changed, 7 insertions(+)

diff --git a/src/gallium/auxiliary/util/u_screen.c b/src/gallium/auxiliary/util/u_screen.c
index 73dbbee94a..1d9f367501 100644
--- a/src/gallium/auxiliary/util/u_screen.c
+++ b/src/gallium/auxiliary/util/u_screen.c
@@ -326,6 +326,9 @@ u_pipe_screen_get_param_defaults(struct pipe_screen *pscreen,
    case PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET:
       return 2047;
 
+   case PIPE_CAP_SRGB_WRITE_CONTROL:
+      return 1;
+
    default:
       unreachable("bad PIPE_CAP_*");
    }
diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index 0abd164494..da677eb04b 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -477,6 +477,9 @@ subpixel precision bias in bits during conservative rasterization.
   0 means no limit.
 * ``PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET``: The maximum supported value for
   of pipe_vertex_element::src_offset.
+* ``PIPE_CAP_SRGB_WRITE_CONTROL``: Indicates whether the drivers on GLES supports
+  enabling/disabling the conversion from linear space to sRGB at framebuffer or
+  blend time.
 
 .. _pipe_capf:
 
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 693f041b1d..7838b18be8 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -826,6 +826,7 @@ enum pipe_cap
    PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS,
    PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET,
    PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET,
+   PIPE_CAP_SRGB_WRITE_CONTROL,
 };
 
 /**
-- 
2.18.1