diff options
Diffstat (limited to 'src/gallium/include/pipe')
| -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 be7447de67d..78155c05348 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 dd76fe553e4..0655f080e42 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) |