diff options
| author | Paul Berry <stereotype441@gmail.com> | 2011-12-19 14:28:32 -0800 |
|---|---|---|
| committer | Paul Berry <stereotype441@gmail.com> | 2011-12-20 15:22:28 -0800 |
| commit | 163611d7b21670de6074c09d37bdf93bad494036 (patch) | |
| tree | b167151b0c469986f872ff3f0e63e800b680c531 | |
| parent | dc7b6d7d6defdfe4f79fb682d3378a3bed8b5db9 (diff) | |
mesa: Add a function to query whether a meta-op is in progress.
This is needed by i965 to ensure that transform feedback counters are
not incremented during meta-ops.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
| -rw-r--r-- | src/mesa/drivers/common/meta.c | 10 | ||||
| -rw-r--r-- | src/mesa/drivers/common/meta.h | 3 |
2 files changed, 13 insertions, 0 deletions
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c index 1683c85e9b..c5c59ebeec 100644 --- a/src/mesa/drivers/common/meta.c +++ b/src/mesa/drivers/common/meta.c @@ -985,6 +985,16 @@ _mesa_meta_end(struct gl_context *ctx) /** + * Determine whether Mesa is currently in a meta state. + */ +GLboolean +_mesa_meta_in_progress(struct gl_context *ctx) +{ + return ctx->Meta->SaveStackDepth != 0; +} + + +/** * Convert Z from a normalized value in the range [0, 1] to an object-space * Z coordinate in [-1, +1] so that drawing at the new Z position with the * default/identity ortho projection results in the original Z value. diff --git a/src/mesa/drivers/common/meta.h b/src/mesa/drivers/common/meta.h index 7198139849..d13796ebed 100644 --- a/src/mesa/drivers/common/meta.h +++ b/src/mesa/drivers/common/meta.h @@ -69,6 +69,9 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state); extern void _mesa_meta_end(struct gl_context *ctx); +extern GLboolean +_mesa_meta_in_progress(struct gl_context *ctx); + extern void _mesa_meta_BlitFramebuffer(struct gl_context *ctx, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, |