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| author | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2016-01-11 17:38:08 -0500 |
|---|---|---|
| committer | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2016-01-14 09:39:38 -0500 |
| commit | 654670b4048ae079879a04c41829902060a93931 (patch) | |
| tree | b9265281a70b2805571a804434f6fb75f375dc84 /src/gallium/include | |
| parent | 6f4ae810056a1f3c53efe6f0576b9b9c4e847a80 (diff) | |
| download | external_mesa3d-654670b4048ae079879a04c41829902060a93931.zip external_mesa3d-654670b4048ae079879a04c41829902060a93931.tar.gz external_mesa3d-654670b4048ae079879a04c41829902060a93931.tar.bz2 | |
gallium: add PIPE_CAP_INVALIDATE_BUFFER
It makes sense to re-use pipe->invalidate_resource for the purpose of
glInvalidateBufferData, but this function is already implemented in vc4
where it doesn't have the expected behavior. So add a capability flag
to indicate that the driver supports the expected behavior.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Diffstat (limited to 'src/gallium/include')
| -rw-r--r-- | src/gallium/include/pipe/p_context.h | 8 | ||||
| -rw-r--r-- | src/gallium/include/pipe/p_defines.h | 1 |
2 files changed, 7 insertions, 2 deletions
diff --git a/src/gallium/include/pipe/p_context.h b/src/gallium/include/pipe/p_context.h index be7447d..78155c0 100644 --- a/src/gallium/include/pipe/p_context.h +++ b/src/gallium/include/pipe/p_context.h @@ -649,11 +649,15 @@ struct pipe_context { struct pipe_resource *resource); /** - * Invalidate the contents of the resource. + * Invalidate the contents of the resource. This is used to * - * This is used to implement EGL's semantic of undefined depth/stencil + * (1) implement EGL's semantic of undefined depth/stencil * contenst after a swapbuffers. This allows a tiled renderer (for * example) to not store the depth buffer. + * + * (2) implement GL's InvalidateBufferData. For backwards compatibility, + * you must only rely on the usability for this purpose when + * PIPE_CAP_INVALIDATE_BUFFER is enabled. */ void (*invalidate_resource)(struct pipe_context *ctx, struct pipe_resource *resource); diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h index dd76fe5..0655f08 100644 --- a/src/gallium/include/pipe/p_defines.h +++ b/src/gallium/include/pipe/p_defines.h @@ -642,6 +642,7 @@ enum pipe_cap PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT, + PIPE_CAP_INVALIDATE_BUFFER, }; #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0) |