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authorChia-I Wu <[email protected]>2010-07-16 04:35:58 +0800
committerChia-I Wu <[email protected]>2010-07-29 13:45:30 +0800
commit6d28bf917fb1d741d90fd3f05c22769376021fca (patch)
tree9b8724b30658d61426297113136c2d23c0c62f14 /src/gallium/auxiliary/util
parentc5e9d3114a80d6d35a2f4e65783cdc75fcc2deac (diff)
gallium: Implement draw_vbo and set_index_buffer for all drivers.
Some drivers define a generic function that is called by all drawing functions. To implement draw_vbo for such drivers, either draw_vbo calls the generic function or the prototype of the generic function is changed to match draw_vbo. Other drivers have no such generic function. draw_vbo is implemented by calling either draw_arrays and draw_elements. For most drivers, set_index_buffer does not mark the state dirty for tracking. Instead, the index buffer state is emitted whenever draw_vbo is called, just like the case with draw_elements. It surely can be improved.
Diffstat (limited to 'src/gallium/auxiliary/util')
-rw-r--r--src/gallium/auxiliary/util/u_draw_quad.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_draw_quad.h b/src/gallium/auxiliary/util/u_draw_quad.h
index 42eb1844289..1c9f7526112 100644
--- a/src/gallium/auxiliary/util/u_draw_quad.h
+++ b/src/gallium/auxiliary/util/u_draw_quad.h
@@ -29,12 +29,42 @@
#define U_DRAWQUAD_H
+#include "pipe/p_compiler.h"
+#include "pipe/p_context.h"
+
+
#ifdef __cplusplus
extern "C" {
#endif
struct pipe_resource;
+
+static INLINE void
+util_draw_init_info(struct pipe_draw_info *info)
+{
+ memset(info, 0, sizeof(*info));
+ info->instance_count = 1;
+ info->max_index = 0xffffffff;
+}
+
+
+static INLINE void
+util_draw_arrays(struct pipe_context *pipe, uint mode, uint start, uint count)
+{
+ struct pipe_draw_info info;
+
+ util_draw_init_info(&info);
+ info.mode = mode;
+ info.start = start;
+ info.count = count;
+ info.min_index = start;
+ info.max_index = start + count - 1;
+
+ pipe->draw_vbo(pipe, &info);
+}
+
+
extern void
util_draw_vertex_buffer(struct pipe_context *pipe,
struct pipe_resource *vbuf, uint offset,