gallium: add start_slot parameter to set_vertex_buffers

This allows updating only a subrange of buffer bindings.

set_vertex_buffers(pipe, start_slot, count, NULL) unbinds buffers in that
range. Binding NULL resources unbinds buffers too (both buffer and user_buffer
must be NULL).

The meta ops are adapted to only save, change, and restore the single slot
they use. The cso_context can save and restore only one vertex buffer slot.
The clients can query which one it is using cso_get_aux_vertex_buffer_slot.
It's currently set to 0. (the Draw module breaks if it's set to non-zero)

It should decrease the CPU overhead when using a lot of meta ops, but
the drivers must be able to treat each vertex buffer slot as a separate
state (only r600g does so at the moment).

I can imagine this also being useful for optimizing some OpenGL use cases.

Reviewed-by: Brian Paul <brianp@vmware.com>

15 files changed, 15 insertions, 15 deletions

diff --git a/src/gallium/tests/graw/fs-fragcoord.c b/src/gallium/tests/graw/fs-fragcoord.c
index eac9627e860..fc4e6b6d4e7 100644
--- a/src/gallium/tests/graw/fs-fragcoord.c
+++ b/src/gallium/tests/graw/fs-fragcoord.c
@@ -74,7 +74,7 @@ set_vertices(void)
                                               sizeof(vertices),
                                               vertices);
 
-   info.ctx->set_vertex_buffers(info.ctx, 1, &vbuf);
+   info.ctx->set_vertex_buffers(info.ctx, 0, 1, &vbuf);
 }
 
 
diff --git a/src/gallium/tests/graw/fs-frontface.c b/src/gallium/tests/graw/fs-frontface.c
index 5f9d8d2d910..b9598f562bb 100644
--- a/src/gallium/tests/graw/fs-frontface.c
+++ b/src/gallium/tests/graw/fs-frontface.c
@@ -96,7 +96,7 @@ set_vertices(void)
                                               sizeof(vertices),
                                               vertices);
 
-   info.ctx->set_vertex_buffers(info.ctx, 1, &vbuf);
+   info.ctx->set_vertex_buffers(info.ctx, 0, 1, &vbuf);
 }
 
 
diff --git a/src/gallium/tests/graw/fs-test.c b/src/gallium/tests/graw/fs-test.c
index 51be87478f7..9cde75cff25 100644
--- a/src/gallium/tests/graw/fs-test.c
+++ b/src/gallium/tests/graw/fs-test.c
@@ -181,7 +181,7 @@ static void set_vertices( void )
                                               sizeof(vertices),
                                               vertices);
 
-   ctx->set_vertex_buffers(ctx, 1, &vbuf);
+   ctx->set_vertex_buffers(ctx, 0, 1, &vbuf);
 }
 
 static void set_vertex_shader( void )
diff --git a/src/gallium/tests/graw/fs-write-z.c b/src/gallium/tests/graw/fs-write-z.c
index 0bcecd7436a..a196cbbe54a 100644
--- a/src/gallium/tests/graw/fs-write-z.c
+++ b/src/gallium/tests/graw/fs-write-z.c
@@ -100,7 +100,7 @@ set_vertices(void)
                                               sizeof(vertices),
                                               vertices);
 
-   info.ctx->set_vertex_buffers(info.ctx, 1, &vbuf);
+   info.ctx->set_vertex_buffers(info.ctx, 0, 1, &vbuf);
 }
 
 
diff --git a/src/gallium/tests/graw/gs-test.c b/src/gallium/tests/graw/gs-test.c
index e9b0829e6ce..c43f54595bf 100644
--- a/src/gallium/tests/graw/gs-test.c
+++ b/src/gallium/tests/graw/gs-test.c
@@ -266,7 +266,7 @@ static void set_vertices( void )
                                                  vertices);
    }
 
-   ctx->set_vertex_buffers(ctx, 1, &vbuf);
+   ctx->set_vertex_buffers(ctx, 0, 1, &vbuf);
 }
 
 static void set_vertex_shader( void )
diff --git a/src/gallium/tests/graw/occlusion-query.c b/src/gallium/tests/graw/occlusion-query.c
index a4f13cbdae4..d522bce038c 100644
--- a/src/gallium/tests/graw/occlusion-query.c
+++ b/src/gallium/tests/graw/occlusion-query.c
@@ -100,7 +100,7 @@ set_vertices(struct vertex *vertices, unsigned bytes)
                                               bytes,
                                               vertices);
 
-   info.ctx->set_vertex_buffers(info.ctx, 1, &vbuf);
+   info.ctx->set_vertex_buffers(info.ctx, 0, 1, &vbuf);
 }
 
 
diff --git a/src/gallium/tests/graw/quad-sample.c b/src/gallium/tests/graw/quad-sample.c
index ca6fe3ec9f2..ab5f299f3e3 100644
--- a/src/gallium/tests/graw/quad-sample.c
+++ b/src/gallium/tests/graw/quad-sample.c
@@ -107,7 +107,7 @@ static void set_vertices( void )
                                               sizeof(vertices),
                                               vertices);
 
-   ctx->set_vertex_buffers(ctx, 1, &vbuf);
+   ctx->set_vertex_buffers(ctx, 0, 1, &vbuf);
 }
 
 static void set_vertex_shader( void )
diff --git a/src/gallium/tests/graw/quad-tex.c b/src/gallium/tests/graw/quad-tex.c
index 02d78ad1fa8..7eb9104a574 100644
--- a/src/gallium/tests/graw/quad-tex.c
+++ b/src/gallium/tests/graw/quad-tex.c
@@ -63,7 +63,7 @@ static void set_vertices( void )
                                               sizeof(vertices),
                                               vertices);
 
-   info.ctx->set_vertex_buffers(info.ctx, 1, &vbuf);
+   info.ctx->set_vertex_buffers(info.ctx, 0, 1, &vbuf);
 }
 
 static void set_vertex_shader( void )
diff --git a/src/gallium/tests/graw/shader-leak.c b/src/gallium/tests/graw/shader-leak.c
index 6100af3192c..be93771f577 100644
--- a/src/gallium/tests/graw/shader-leak.c
+++ b/src/gallium/tests/graw/shader-leak.c
@@ -97,7 +97,7 @@ static void set_vertices( void )
                                               sizeof(vertices),
                                               vertices);
 
-   ctx->set_vertex_buffers(ctx, 1, &vbuf);
+   ctx->set_vertex_buffers(ctx, 0, 1, &vbuf);
 }
 
 static void set_vertex_shader( void )
diff --git a/src/gallium/tests/graw/tex-srgb.c b/src/gallium/tests/graw/tex-srgb.c
index af3e1c36f15..5442f94f722 100644
--- a/src/gallium/tests/graw/tex-srgb.c
+++ b/src/gallium/tests/graw/tex-srgb.c
@@ -79,7 +79,7 @@ set_vertices(struct vertex *verts, unsigned num_verts)
                                               num_verts * sizeof(struct vertex),
                                               verts);
 
-   info.ctx->set_vertex_buffers(info.ctx, 1, &vbuf);
+   info.ctx->set_vertex_buffers(info.ctx, 0, 1, &vbuf);
 }
 
 static void set_vertex_shader( void )
diff --git a/src/gallium/tests/graw/tex-swizzle.c b/src/gallium/tests/graw/tex-swizzle.c
index 7dc35eb43a3..7807b0b80a2 100644
--- a/src/gallium/tests/graw/tex-swizzle.c
+++ b/src/gallium/tests/graw/tex-swizzle.c
@@ -61,7 +61,7 @@ static void set_vertices(void)
                                               sizeof(vertices),
                                               vertices);
 
-   info.ctx->set_vertex_buffers(info.ctx, 1, &vbuf);
+   info.ctx->set_vertex_buffers(info.ctx, 0, 1, &vbuf);
 }
 
 static void set_vertex_shader(void)
diff --git a/src/gallium/tests/graw/tri-gs.c b/src/gallium/tests/graw/tri-gs.c
index be1f0352029..573bc8a83f4 100644
--- a/src/gallium/tests/graw/tri-gs.c
+++ b/src/gallium/tests/graw/tri-gs.c
@@ -98,7 +98,7 @@ static void set_vertices( void )
                                               sizeof(vertices),
                                               vertices);
 
-   ctx->set_vertex_buffers(ctx, 1, &vbuf);
+   ctx->set_vertex_buffers(ctx, 0, 1, &vbuf);
 }
 
 static void set_vertex_shader( void )
diff --git a/src/gallium/tests/graw/tri-instanced.c b/src/gallium/tests/graw/tri-instanced.c
index ce81c9c0217..4e3a80b61dd 100644
--- a/src/gallium/tests/graw/tri-instanced.c
+++ b/src/gallium/tests/graw/tri-instanced.c
@@ -150,7 +150,7 @@ static void set_vertices( void )
                                                  sizeof(inst_data),
                                                  inst_data);
 
-   ctx->set_vertex_buffers(ctx, 2, vbuf);
+   ctx->set_vertex_buffers(ctx, 0, 2, vbuf);
 
    /* index data */
    ibuf.buffer = pipe_buffer_create_with_data(ctx,
diff --git a/src/gallium/tests/graw/tri.c b/src/gallium/tests/graw/tri.c
index 7b6507eab11..71dd51afd87 100644
--- a/src/gallium/tests/graw/tri.c
+++ b/src/gallium/tests/graw/tri.c
@@ -62,7 +62,7 @@ static void set_vertices( void )
                                               sizeof(vertices),
                                               vertices);
 
-   info.ctx->set_vertex_buffers(info.ctx, 1, &vbuf);
+   info.ctx->set_vertex_buffers(info.ctx, 0, 1, &vbuf);
 }
 
 
diff --git a/src/gallium/tests/graw/vs-test.c b/src/gallium/tests/graw/vs-test.c
index 7fb97d84948..0677f04f28f 100644
--- a/src/gallium/tests/graw/vs-test.c
+++ b/src/gallium/tests/graw/vs-test.c
@@ -180,7 +180,7 @@ static void set_vertices( void )
                                               sizeof(vertices),
                                               vertices);
 
-   ctx->set_vertex_buffers(ctx, 1, &vbuf);
+   ctx->set_vertex_buffers(ctx, 0, 1, &vbuf);
 }
 
 static void set_vertex_shader( void )