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i965/blorp: Add support for blits between SRGB and linear formats.

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Fixes colorspace issues in L4D2 when multisampling is enabled (the
scene was far too dark, but the flashlight area was way too bright).

The nVidia and AMD binary drivers both allow this kind of blit.

NOTE: This is a candidate for the 9.0 branch.

Reviewed-by: Paul Berry <stereotype441@gmail.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Kenneth Graunke
2012-09-11 16:20:43 -07:00
parent c96828ecb4
commit e2249e8c4d
2 changed files with 8 additions and 4 deletions
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src/mesa/drivers/dri/i965/brw_blorp.cpp
+3 -2
View File
@@ -101,8 +101,9 @@ brw_blorp_surface_info::set(struct brw_context *brw,
* target, even if this is the source image. So we can convert to a
* surface format using brw->render_target_format.
*/
assert(brw->format_supported_as_render_target[mt->format]);
this->brw_surfaceformat = brw->render_target_format[mt->format];
gl_format linear_format = _mesa_get_srgb_format_linear(mt->format);
assert(brw->format_supported_as_render_target[linear_format]);
this->brw_surfaceformat = brw->render_target_format[linear_format];
break;
}
}
src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
+5 -2
View File
@@ -180,8 +180,11 @@ formats_match(GLbitfield buffer_bit, struct intel_renderbuffer *src_irb,
* example MESA_FORMAT_X8_Z24 and MESA_FORMAT_S8_Z24), and we can blit
* between those formats.
*/
return find_miptree(buffer_bit, src_irb)->format ==
find_miptree(buffer_bit, dst_irb)->format;
gl_format src_format = find_miptree(buffer_bit, src_irb)->format;
gl_format dst_format = find_miptree(buffer_bit, dst_irb)->format;
return _mesa_get_srgb_format_linear(src_format) ==
_mesa_get_srgb_format_linear(dst_format);
}