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authorPaul Berry <[email protected]>2012-12-12 14:14:12 -0800
committerPaul Berry <[email protected]>2012-12-18 08:31:26 -0800
commit3870f2903f030969491fa287b7f8d7eaf1d2f4f9 (patch)
treeb8e7ef37f0079d80a497cfd17f8699db6ffb10d8 /src/mesa/main/transformfeedback.h
parent61c1b065fbdd224fa547f035991210859c7af310 (diff)
mesa: refactor _mesa_compute_max_transform_feedback_vertices from i965.
Previously, the i965 driver contained code to compute the maximum number of vertices that could be written without overflowing any transform feedback buffers. This code wasn't driver-specific, and for GLES3 support we're going to need to use it in core mesa. So this patch moves the code into a core mesa function, _mesa_compute_max_transform_feedback_vertices(). Reviewed-by: Ian Romanick <[email protected]> v2: Eliminate C++-style variable declarations, since these won't work with MSVC. Reviewed-by: Jordan Justen <[email protected]> Reviewed-by: Brian Paul <[email protected]>
Diffstat (limited to 'src/mesa/main/transformfeedback.h')
-rw-r--r--src/mesa/main/transformfeedback.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mesa/main/transformfeedback.h b/src/mesa/main/transformfeedback.h
index 01c2af3599b..3c03b7a2413 100644
--- a/src/mesa/main/transformfeedback.h
+++ b/src/mesa/main/transformfeedback.h
@@ -46,6 +46,11 @@ _mesa_validate_transform_feedback_buffers(struct gl_context *ctx);
extern void
_mesa_init_transform_feedback_functions(struct dd_function_table *driver);
+extern unsigned
+_mesa_compute_max_transform_feedback_vertices(
+ const struct gl_transform_feedback_object *obj,
+ const struct gl_transform_feedback_info *info);
+
/*** GL_EXT_transform_feedback ***/