Module: Mesa Branch: master Commit: 163611d7b21670de6074c09d37bdf93bad494036 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=163611d7b21670de6074c09d37bdf93bad494036
Author: Paul Berry <stereotype...@gmail.com> Date: Mon Dec 19 14:28:32 2011 -0800 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 <kenn...@whitecape.org> --- src/mesa/drivers/common/meta.c | 10 ++++++++++ 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 1683c85..c5c59eb 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 7198139..d13796e 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, _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-commit