gallium: notify drivers about possible changes in user buffer contents

[mesa.git] / src / gallium / drivers / nvc0 / nvc0_context.h

diff --git a/src/gallium/drivers/nvc0/nvc0_context.h b/src/gallium/drivers/nvc0/nvc0_context.h
index 0f340beb35ada26f42e8118825cef89e7d6e9348..a082ad4575c399949befe2518c2e471d6a20fa48 100644 (file)
--- a/src/gallium/drivers/nvc0/nvc0_context.h
+++ b/src/gallium/drivers/nvc0/nvc0_context.h
@@ -54,6 +54,8 @@
 #define NVC0_NEW_CONSTBUF     (1 << 18)
 #define NVC0_NEW_TEXTURES     (1 << 19)
 #define NVC0_NEW_SAMPLERS     (1 << 20)
+#define NVC0_NEW_TFB          (1 << 21)
+#define NVC0_NEW_TFB_BUFFERS  (1 << 22)
 
 #define NVC0_BUFCTX_CONSTANT 0
 #define NVC0_BUFCTX_FRAME    1
@@ -71,7 +73,7 @@ struct nvc0_context {
    uint32_t dirty;
 
    struct {
-      uint32_t instance_bits;
+      uint32_t instance_elts; /* bitmask of per-instance elements */
       uint32_t instance_base;
       int32_t index_bias;
       boolean prim_restart;
@@ -100,7 +102,8 @@ struct nvc0_context {
    struct pipe_vertex_buffer vtxbuf[PIPE_MAX_ATTRIBS];
    unsigned num_vtxbufs;
    struct pipe_index_buffer idxbuf;
-   uint32_t vbo_fifo;
+   uint32_t vbo_fifo; /* bitmask of vertex elements to be pushed to FIFO */
+   uint32_t vbo_user; /* bitmask of vertex buffers pointing to user memory */
    unsigned vbo_min_index; /* from pipe_draw_info, for vertex upload */
    unsigned vbo_max_index;
 
@@ -122,6 +125,11 @@ struct nvc0_context {
    boolean vbo_dirty;
    boolean vbo_push_hint;
 
+   struct nvc0_transform_feedback_state *tfb;
+   struct pipe_resource *tfbbuf[4];
+   unsigned num_tfbbufs;
+   unsigned tfb_offset[4];
+
    struct draw_context *draw;
 };
 
@@ -176,6 +184,8 @@ void nvc0_tevlprog_validate(struct nvc0_context *);
 void nvc0_gmtyprog_validate(struct nvc0_context *);
 void nvc0_fragprog_validate(struct nvc0_context *);
 
+void nvc0_tfb_validate(struct nvc0_context *);
+
 /* nvc0_state.c */
 extern void nvc0_init_state_functions(struct nvc0_context *);