Mesa (master): gallium: add get_sample_position interface
Dave Airlie
airlied at kemper.freedesktop.org
Thu Apr 11 20:22:20 UTC 2013
Module: Mesa
Branch: master
Commit: cc906396c76076f68b4e753a8d28a7f8420b2f79
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=cc906396c76076f68b4e753a8d28a7f8420b2f79
Author: Dave Airlie <airlied at redhat.com>
Date: Mon Mar 4 06:11:07 2013 +1000
gallium: add get_sample_position interface
This is to be used to implement glGet GL_SAMPLE_POSITION.
Reviewed-by: Marek Olšák <maraeo at gmail.com>
Signed-off-by: Dave Airlie <airlied at redhat.com>
---
src/gallium/include/pipe/p_context.h | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/src/gallium/include/pipe/p_context.h b/src/gallium/include/pipe/p_context.h
index 7ed946e..da1f5a8 100644
--- a/src/gallium/include/pipe/p_context.h
+++ b/src/gallium/include/pipe/p_context.h
@@ -520,6 +520,19 @@ struct pipe_context {
const uint *block_layout, const uint *grid_layout,
uint32_t pc, const void *input);
/*@}*/
+
+ /**
+ * Get sample position for an individual sample point.
+ *
+ * \param sample_count - total number of samples
+ * \param sample_index - sample to get the position values for
+ * \param out_value - return value of 2 floats for x and y position for
+ * requested sample.
+ */
+ void (*get_sample_position)(struct pipe_context *context,
+ unsigned sample_count,
+ unsigned sample_index,
+ float *out_value);
};
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