Reviewed-by: Charmaine Lee <[email protected]>
________________________________________
From: Brian Paul <[email protected]>
Sent: Thursday, December 10, 2015 1:09 PM
To: [email protected]
Cc: Charmaine Lee; Jose Fonseca
Subject: [PATCH] svga: avoid emitting redundant SetIndexBuffer commands
---
src/gallium/drivers/svga/svga_context.h | 4 ++++
src/gallium/drivers/svga/svga_draw.c | 17 ++++++++++++-----
2 files changed, 16 insertions(+), 5 deletions(-)
diff --git a/src/gallium/drivers/svga/svga_context.h
b/src/gallium/drivers/svga/svga_context.h
index c4284cc..db9491b 100644
--- a/src/gallium/drivers/svga/svga_context.h
+++ b/src/gallium/drivers/svga/svga_context.h
@@ -343,6 +343,10 @@ struct svga_hw_draw_state
SVGA3dElementLayoutId layout_id;
SVGA3dPrimitiveType topology;
+ struct svga_winsys_surface *ib; /**< index buffer for drawing */
+ SVGA3dSurfaceFormat ib_format;
+ unsigned ib_offset;
+
/* used for rebinding */
unsigned num_sampler_views[PIPE_SHADER_TYPES];
unsigned default_constbuf_size[PIPE_SHADER_TYPES];
diff --git a/src/gallium/drivers/svga/svga_draw.c
b/src/gallium/drivers/svga/svga_draw.c
index cca499a..2d3631d 100644
--- a/src/gallium/drivers/svga/svga_draw.c
+++ b/src/gallium/drivers/svga/svga_draw.c
@@ -539,11 +539,18 @@ draw_vgpu10(struct svga_hwtnl *hwtnl,
SVGA3dSurfaceFormat indexFormat = xlate_index_format(range->indexWidth);
/* setup index buffer */
- ret = SVGA3D_vgpu10_SetIndexBuffer(svga->swc, ib_handle,
- indexFormat,
- range->indexArray.offset);
- if (ret != PIPE_OK)
- return ret;
+ if (ib_handle != svga->state.hw_draw.ib ||
+ indexFormat != svga->state.hw_draw.ib_format ||
+ range->indexArray.offset != svga->state.hw_draw.ib_offset) {
+ ret = SVGA3D_vgpu10_SetIndexBuffer(svga->swc, ib_handle,
+ indexFormat,
+ range->indexArray.offset);
+ if (ret != PIPE_OK)
+ return ret;
+ svga->state.hw_draw.ib = ib_handle;
+ svga->state.hw_draw.ib_format = indexFormat;
+ svga->state.hw_draw.ib_offset = range->indexArray.offset;
+ }
if (instance_count > 1) {
ret = SVGA3D_vgpu10_DrawIndexedInstanced(svga->swc,
--
1.9.1
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