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authorMarek Olšák <maraeo@gmail.com>2011-02-07 02:00:56 +0100
committerMarek Olšák <maraeo@gmail.com>2011-02-07 02:46:17 +0100
commitaa8a2224a3df111a1613f0baefebc00883e1b70b (patch)
treee09c1f779a1e22a0e561a5cd039f3bbcac31c5b1
parent975320ab76f5c247f6ed4dab80627173845200d0 (diff)
r600g: use the new vertex buffer manager
-rw-r--r--src/gallium/drivers/r600/r600_asm.c6
-rw-r--r--src/gallium/drivers/r600/r600_blit.c12
-rw-r--r--src/gallium/drivers/r600/r600_buffer.c115
-rw-r--r--src/gallium/drivers/r600/r600_pipe.c26
-rw-r--r--src/gallium/drivers/r600/r600_pipe.h34
-rw-r--r--src/gallium/drivers/r600/r600_resource.h10
-rw-r--r--src/gallium/drivers/r600/r600_state_common.c128
-rw-r--r--src/gallium/drivers/r600/r600_texture.c20
-rw-r--r--src/gallium/drivers/r600/r600_translate.c169
9 files changed, 101 insertions, 419 deletions
diff --git a/src/gallium/drivers/r600/r600_asm.c b/src/gallium/drivers/r600/r600_asm.c
index 35a7bc79e04..46d7fc391c6 100644
--- a/src/gallium/drivers/r600/r600_asm.c
+++ b/src/gallium/drivers/r600/r600_asm.c
@@ -2049,16 +2049,16 @@ int r600_vertex_elements_build_fetch_shader(struct r600_pipe_context *rctx, stru
ve->vbuffer_need_offset = 1;
}
}
for (i = 0; i < ve->count; i++) {
unsigned vbuffer_index;
- r600_vertex_data_type(ve->hw_format[i], &format, &num_format, &format_comp);
- desc = util_format_description(ve->hw_format[i]);
+ r600_vertex_data_type(ve->elements[i].src_format, &format, &num_format, &format_comp);
+ desc = util_format_description(ve->elements[i].src_format);
if (desc == NULL) {
- R600_ERR("unknown format %d\n", ve->hw_format[i]);
+ R600_ERR("unknown format %d\n", ve->elements[i].src_format);
r600_bo_reference(rctx->radeon, &ve->fetch_shader, NULL);
return -EINVAL;
}
/* see above for vbuffer_need_offset explanation */
vbuffer_index = elements[i].vertex_buffer_index;
diff --git a/src/gallium/drivers/r600/r600_blit.c b/src/gallium/drivers/r600/r600_blit.c
index af471d0d917..fbade99fc54 100644
--- a/src/gallium/drivers/r600/r600_blit.c
+++ b/src/gallium/drivers/r600/r600_blit.c
@@ -51,13 +51,15 @@ static void r600_blitter_begin(struct pipe_context *ctx, enum r600_blitter_op op
if (rctx->states[R600_PIPE_STATE_VIEWPORT]) {
util_blitter_save_viewport(rctx->blitter, &rctx->viewport);
}
if (rctx->states[R600_PIPE_STATE_CLIP]) {
util_blitter_save_clip(rctx->blitter, &rctx->clip);
}
- util_blitter_save_vertex_buffers(rctx->blitter, rctx->nvertex_buffers, rctx->vertex_buffer);
+ util_blitter_save_vertex_buffers(rctx->blitter,
+ rctx->vbuf_mgr->nr_vertex_buffers,
+ rctx->vbuf_mgr->vertex_buffer);
if (op & (R600_CLEAR_SURFACE | R600_COPY))
util_blitter_save_framebuffer(rctx->blitter, &rctx->framebuffer);
if (op & R600_COPY) {
util_blitter_save_fragment_sampler_states(
@@ -85,19 +87,19 @@ void r600_blit_uncompress_depth(struct pipe_context *ctx, struct r600_resource_t
int level = 0;
float depth = 1.0f;
if (!texture->dirty_db)
return;
- surf_tmpl.format = texture->resource.base.b.format;
+ surf_tmpl.format = texture->resource.b.b.b.format;
surf_tmpl.u.tex.level = level;
surf_tmpl.u.tex.first_layer = 0;
surf_tmpl.u.tex.last_layer = 0;
surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
- zsurf = ctx->create_surface(ctx, &texture->resource.base.b, &surf_tmpl);
+ zsurf = ctx->create_surface(ctx, &texture->resource.b.b.b, &surf_tmpl);
surf_tmpl.format = ((struct pipe_resource*)texture->flushed_depth_texture)->format;
surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
cbsurf = ctx->create_surface(ctx,
(struct pipe_resource*)texture->flushed_depth_texture, &surf_tmpl);
@@ -245,14 +247,14 @@ void r600_init_blit_functions(struct r600_pipe_context *rctx)
void r600_blit_push_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
{
struct pipe_box sbox;
sbox.x = sbox.y = sbox.z = 0;
- sbox.width = texture->resource.base.b.width0;
- sbox.height = texture->resource.base.b.height0;
+ sbox.width = texture->resource.b.b.b.width0;
+ sbox.height = texture->resource.b.b.b.height0;
/* XXX that might be wrong */
sbox.depth = 1;
r600_hw_copy_region(ctx, (struct pipe_resource *)texture, 0,
0, 0, 0,
(struct pipe_resource *)texture->flushed_depth_texture, 0,
diff --git a/src/gallium/drivers/r600/r600_buffer.c b/src/gallium/drivers/r600/r600_buffer.c
index c3bc6eadda4..0a0e3db854a 100644
--- a/src/gallium/drivers/r600/r600_buffer.c
+++ b/src/gallium/drivers/r600/r600_buffer.c
@@ -63,14 +63,14 @@ static void *r600_buffer_transfer_map(struct pipe_context *pipe,
struct pipe_transfer *transfer)
{
struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
int write = 0;
uint8_t *data;
- if (rbuffer->user_buffer)
- return (uint8_t*)rbuffer->user_buffer + transfer->box.x;
+ if (rbuffer->r.b.user_ptr)
+ return (uint8_t*)rbuffer->r.b.user_ptr + transfer->box.x;
if (transfer->usage & PIPE_TRANSFER_DONTBLOCK) {
/* FIXME */
}
if (transfer->usage & PIPE_TRANSFER_WRITE) {
write = 1;
@@ -84,13 +84,13 @@ static void *r600_buffer_transfer_map(struct pipe_context *pipe,
static void r600_buffer_transfer_unmap(struct pipe_context *pipe,
struct pipe_transfer *transfer)
{
struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
- if (rbuffer->user_buffer)
+ if (rbuffer->r.b.user_ptr)
return;
if (rbuffer->r.bo)
r600_bo_unmap((struct radeon*)pipe->winsys, rbuffer->r.bo);
}
@@ -123,26 +123,31 @@ struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
rbuffer = CALLOC_STRUCT(r600_resource_buffer);
if (rbuffer == NULL)
return NULL;
rbuffer->magic = R600_BUFFER_MAGIC;
- rbuffer->user_buffer = NULL;
- rbuffer->r.base.b = *templ;
- pipe_reference_init(&rbuffer->r.base.b.reference, 1);
- rbuffer->r.base.b.screen = screen;
- rbuffer->r.base.vtbl = &r600_buffer_vtbl;
- rbuffer->r.size = rbuffer->r.base.b.width0;
+ rbuffer->r.b.b.b = *templ;
+ pipe_reference_init(&rbuffer->r.b.b.b.reference, 1);
+ rbuffer->r.b.b.b.screen = screen;
+ rbuffer->r.b.b.vtbl = &r600_buffer_vtbl;
+ rbuffer->r.b.user_ptr = NULL;
+ rbuffer->r.size = rbuffer->r.b.b.b.width0;
rbuffer->r.bo_size = rbuffer->r.size;
- bo = r600_bo((struct radeon*)screen->winsys, rbuffer->r.base.b.width0, alignment, rbuffer->r.base.b.bind, rbuffer->r.base.b.usage);
+
+ bo = r600_bo((struct radeon*)screen->winsys,
+ rbuffer->r.b.b.b.width0,
+ alignment, rbuffer->r.b.b.b.bind,
+ rbuffer->r.b.b.b.usage);
+
if (bo == NULL) {
FREE(rbuffer);
return NULL;
}
rbuffer->r.bo = bo;
- return &rbuffer->r.base.b;
+ return &rbuffer->r.b.b.b;
}
struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
void *ptr, unsigned bytes,
unsigned bind)
{
@@ -150,28 +155,28 @@ struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
rbuffer = CALLOC_STRUCT(r600_resource_buffer);
if (rbuffer == NULL)
return NULL;
rbuffer->magic = R600_BUFFER_MAGIC;
- pipe_reference_init(&rbuffer->r.base.b.reference, 1);
- rbuffer->r.base.vtbl = &r600_buffer_vtbl;
- rbuffer->r.base.b.screen = screen;
- rbuffer->r.base.b.target = PIPE_BUFFER;
- rbuffer->r.base.b.format = PIPE_FORMAT_R8_UNORM;
- rbuffer->r.base.b.usage = PIPE_USAGE_IMMUTABLE;
- rbuffer->r.base.b.bind = bind;
- rbuffer->r.base.b.width0 = bytes;
- rbuffer->r.base.b.height0 = 1;
- rbuffer->r.base.b.depth0 = 1;
- rbuffer->r.base.b.array_size = 1;
- rbuffer->r.base.b.flags = 0;
+ pipe_reference_init(&rbuffer->r.b.b.b.reference, 1);
+ rbuffer->r.b.b.vtbl = &r600_buffer_vtbl;
+ rbuffer->r.b.b.b.screen = screen;
+ rbuffer->r.b.b.b.target = PIPE_BUFFER;
+ rbuffer->r.b.b.b.format = PIPE_FORMAT_R8_UNORM;
+ rbuffer->r.b.b.b.usage = PIPE_USAGE_IMMUTABLE;
+ rbuffer->r.b.b.b.bind = bind;
+ rbuffer->r.b.b.b.width0 = bytes;
+ rbuffer->r.b.b.b.height0 = 1;
+ rbuffer->r.b.b.b.depth0 = 1;
+ rbuffer->r.b.b.b.array_size = 1;
+ rbuffer->r.b.b.b.flags = 0;
+ rbuffer->r.b.user_ptr = ptr;
rbuffer->r.bo = NULL;
rbuffer->r.bo_size = 0;
- rbuffer->user_buffer = ptr;
- return &rbuffer->r.base.b;
+ return &rbuffer->r.b.b.b;
}
struct pipe_resource *r600_buffer_from_handle(struct pipe_screen *screen,
struct winsys_handle *whandle)
{
struct radeon *rw = (struct radeon*)screen->winsys;
@@ -186,78 +191,38 @@ struct pipe_resource *r600_buffer_from_handle(struct pipe_screen *screen,
rbuffer = CALLOC_STRUCT(r600_resource);
if (rbuffer == NULL) {
r600_bo_reference(rw, &bo, NULL);
return NULL;
}
- pipe_reference_init(&rbuffer->base.b.reference, 1);
- rbuffer->base.b.target = PIPE_BUFFER;
- rbuffer->base.b.screen = screen;
- rbuffer->base.vtbl = &r600_buffer_vtbl;
+ pipe_reference_init(&rbuffer->b.b.b.reference, 1);
+ rbuffer->b.b.b.target = PIPE_BUFFER;
+ rbuffer->b.b.b.screen = screen;
+ rbuffer->b.b.vtbl = &r600_buffer_vtbl;
rbuffer->bo = bo;
- return &rbuffer->base.b;
+ return &rbuffer->b.b.b;
}
void r600_upload_index_buffer(struct r600_pipe_context *rctx, struct r600_drawl *draw)
{
struct r600_resource_buffer *rbuffer = r600_buffer(draw->index_buffer);
boolean flushed;
- u_upload_data(rctx->upload_vb, 0,
+ u_upload_data(rctx->upload_ib, 0,
draw->info.count * draw->index_size,
- rbuffer->user_buffer,
+ rbuffer->r.b.user_ptr,
&draw->index_buffer_offset,
&draw->index_buffer, &flushed);
}
-void r600_upload_user_buffers(struct r600_pipe_context *rctx,
- int min_index, int max_index)
-{
- int i, nr = rctx->vertex_elements->count;
- unsigned count = max_index + 1 - min_index;
- boolean flushed;
- boolean uploaded[32] = {0};
-
- for (i = 0; i < nr; i++) {
- unsigned index = rctx->vertex_elements->elements[i].vertex_buffer_index;
- struct pipe_vertex_buffer *vb = &rctx->vertex_buffer[index];
- struct r600_resource_buffer *userbuf = r600_buffer(vb->buffer);
-
- if (userbuf && userbuf->user_buffer && !uploaded[index]) {
- unsigned first, size;
-
- if (vb->stride) {
- first = vb->stride * min_index;
- size = vb->stride * count;
- } else {
- first = 0;
- size = rctx->vertex_elements->hw_format_size[i];
- }
-
- u_upload_data(rctx->upload_vb, first, size,
- (uint8_t*)userbuf->user_buffer + first,
- &vb->buffer_offset,
- &rctx->real_vertex_buffer[index],
- &flushed);
-
- vb->buffer_offset -= first;
-
- /* vertex_arrays_dirty = TRUE; */
- uploaded[index] = TRUE;
- } else {
- assert(rctx->real_vertex_buffer[index]);
- }
- }
-}
-
void r600_upload_const_buffer(struct r600_pipe_context *rctx, struct r600_resource_buffer **rbuffer,
uint32_t *const_offset)
{
- if ((*rbuffer)->user_buffer) {
- uint8_t *ptr = (*rbuffer)->user_buffer;
- unsigned size = (*rbuffer)->r.base.b.width0;
+ if ((*rbuffer)->r.b.user_ptr) {
+ uint8_t *ptr = (*rbuffer)->r.b.user_ptr;
+ unsigned size = (*rbuffer)->r.b.b.b.width0;
boolean flushed;
*rbuffer = NULL;
u_upload_data(rctx->upload_const, 0, size, ptr, const_offset,
(struct pipe_resource**)rbuffer, &flushed);
diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
index 1c903a0b4e1..85ad0ee968b 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -73,27 +73,23 @@ static void r600_flush(struct pipe_context *ctx, unsigned flags,
static void r600_destroy_context(struct pipe_context *context)
{
struct r600_pipe_context *rctx = (struct r600_pipe_context *)context;
rctx->context.delete_depth_stencil_alpha_state(&rctx->context, rctx->custom_dsa_flush);
- r600_end_vertex_translate(rctx);
-
r600_context_fini(&rctx->ctx);
util_blitter_destroy(rctx->blitter);
for (int i = 0; i < R600_PIPE_NSTATES; i++) {
free(rctx->states[i]);
}
- u_upload_destroy(rctx->upload_vb);
+ u_upload_destroy(rctx->upload_ib);
u_upload_destroy(rctx->upload_const);
-
- if (rctx->tran.translate_cache)
- translate_cache_destroy(rctx->tran.translate_cache);
+ u_vbuf_mgr_destroy(rctx->vbuf_mgr);
FREE(rctx->ps_resource);
FREE(rctx->vs_resource);
FREE(rctx);
}
@@ -161,16 +157,22 @@ static struct pipe_context *r600_create_context(struct pipe_screen *screen, void
default:
R600_ERR("unsupported family %d\n", r600_get_family(rctx->radeon));
r600_destroy_context(&rctx->context);
return NULL;
}
- rctx->upload_vb = u_upload_create(&rctx->context, 1024 * 1024, 16,
- PIPE_BIND_VERTEX_BUFFER |
+ rctx->vbuf_mgr = u_vbuf_mgr_create(&rctx->context, 1024 * 1024, 16,
+ U_VERTEX_FETCH_BYTE_ALIGNED);
+ if (!rctx->vbuf_mgr) {
+ r600_destroy_context(&rctx->context);
+ return NULL;
+ }
+
+ rctx->upload_ib = u_upload_create(&rctx->context, 128 * 1024, 16,
PIPE_BIND_INDEX_BUFFER);
- if (rctx->upload_vb == NULL) {
+ if (rctx->upload_ib == NULL) {
r600_destroy_context(&rctx->context);
return NULL;
}
rctx->upload_const = u_upload_create(&rctx->context, 1024 * 1024, 256,
PIPE_BIND_CONSTANT_BUFFER);
@@ -182,18 +184,12 @@ static struct pipe_context *r600_create_context(struct pipe_screen *screen, void
rctx->blitter = util_blitter_create(&rctx->context);
if (rctx->blitter == NULL) {
FREE(rctx);
return NULL;
}
- rctx->tran.translate_cache = translate_cache_create();
- if (rctx->tran.translate_cache == NULL) {
- FREE(rctx);
- return NULL;
- }
-
rctx->vs_resource = CALLOC(R600_RESOURCE_ARRAY_SIZE, sizeof(struct r600_pipe_state));
if (!rctx->vs_resource) {
FREE(rctx);
return NULL;
}
diff --git a/src/gallium/drivers/r600/r600_pipe.h b/src/gallium/drivers/r600/r600_pipe.h
index d376a777852..e9820a23911 100644
--- a/src/gallium/drivers/r600/r600_pipe.h
+++ b/src/gallium/drivers/r600/r600_pipe.h
@@ -27,13 +27,13 @@
#define R600_PIPE_H
#include <pipe/p_state.h>
#include <pipe/p_screen.h>
#include <pipe/p_context.h>
#include <util/u_math.h>
-#include "translate/translate_cache.h"
+#include "util/u_vbuf_mgr.h"
#include "r600.h"
#include "r600_public.h"
#include "r600_shader.h"
#include "r600_resource.h"
enum r600_pipe_state_id {
@@ -83,15 +83,13 @@ struct r600_pipe_blend {
};
struct r600_vertex_element
{
unsigned count;
struct pipe_vertex_element elements[PIPE_MAX_ATTRIBS];
- enum pipe_format hw_format[PIPE_MAX_ATTRIBS];
- unsigned hw_format_size[PIPE_MAX_ATTRIBS];
- boolean incompatible_layout;
+ struct u_vbuf_mgr_elements *vmgr_elements;
struct r600_bo *fetch_shader;
unsigned fs_size;
struct r600_pipe_state rstate;
/* if offset is to big for fetch instructio we need to alterate
* offset of vertex buffer, record here the offset need to add
*/
@@ -114,24 +112,12 @@ struct r600_textures_info {
struct r600_pipe_sampler_view *views[NUM_TEX_UNITS];
unsigned n_views;
void *samplers[NUM_TEX_UNITS];
unsigned n_samplers;
};
-/* vertex buffer translation context, used to translate vertex input that
- * hw doesn't natively support, so far only FLOAT64 is unsupported.
- */
-struct r600_translate_context {
- /* Translate cache for incompatible vertex offset/stride/format fallback. */
- struct translate_cache *translate_cache;
- /* The vertex buffer slot containing the translated buffer. */
- unsigned vb_slot;
- void *saved_velems;
- void *new_velems;
-};
-
#define R600_CONSTANT_ARRAY_SIZE 256
#define R600_RESOURCE_ARRAY_SIZE 160
struct r600_pipe_context {
struct pipe_context context;
struct blitter_context *blitter;
@@ -141,16 +127,12 @@ struct r600_pipe_context {
struct radeon *radeon;
struct r600_pipe_state *states[R600_PIPE_NSTATES];
struct r600_context ctx;
struct r600_vertex_element *vertex_elements;
struct pipe_framebuffer_state framebuffer;
struct pipe_index_buffer index_buffer;
- struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
- struct pipe_resource *real_vertex_buffer[PIPE_MAX_ATTRIBS];
- unsigned nvertex_buffers;
- unsigned nreal_vertex_buffers; /* with the translated vertex buffer */
unsigned cb_target_mask;
/* for saving when using blitter */
struct pipe_stencil_ref stencil_ref;
struct pipe_viewport_state viewport;
struct pipe_clip_state clip;
unsigned nvs_resource;
@@ -162,17 +144,16 @@ struct r600_pipe_context {
struct r600_pipe_state vs_const_buffer;
struct r600_pipe_state ps_const_buffer;
struct r600_pipe_rasterizer *rasterizer;
/* shader information */
unsigned sprite_coord_enable;
bool flatshade;
- struct u_upload_mgr *upload_vb;
- unsigned any_user_vbs;
struct r600_textures_info ps_samplers;
- unsigned vb_max_index;
- struct r600_translate_context tran;
+
+ struct u_vbuf_mgr *vbuf_mgr;
+ struct u_upload_mgr *upload_ib;
struct u_upload_mgr *upload_const;
bool blit;
};
struct r600_drawl {
struct pipe_draw_info info;
@@ -207,14 +188,12 @@ struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
void *ptr, unsigned bytes,
unsigned bind);
struct pipe_resource *r600_buffer_from_handle(struct pipe_screen *screen,
struct winsys_handle *whandle);
void r600_upload_index_buffer(struct r600_pipe_context *rctx, struct r600_drawl *draw);
-void r600_upload_user_buffers(struct r600_pipe_context *rctx,
- int min_index, int max_index);
/* r600_query.c */
void r600_init_query_functions(struct r600_pipe_context *rctx);
/* r600_resource.c */
void r600_init_context_resource_functions(struct r600_pipe_context *r600);
@@ -247,15 +226,12 @@ uint32_t r600_translate_texformat(enum pipe_format format,
const unsigned char *swizzle_view,
uint32_t *word4_p, uint32_t *yuv_format_p);
unsigned r600_texture_get_offset(struct r600_resource_texture *rtex,
unsigned level, unsigned layer);
/* r600_translate.c */
-void r600_begin_vertex_translate(struct r600_pipe_context *rctx,
- int min_index, int max_index);
-void r600_end_vertex_translate(struct r600_pipe_context *rctx);
void r600_translate_index_buffer(struct r600_pipe_context *r600,
struct pipe_resource **index_buffer,
unsigned *index_size,
unsigned *start, unsigned count);
/* r600_state_common.c */
diff --git a/src/gallium/drivers/r600/r600_resource.h b/src/gallium/drivers/r600/r600_resource.h
index 8afe866c91e..2e7a28cc94f 100644
--- a/src/gallium/drivers/r600/r600_resource.h
+++ b/src/gallium/drivers/r600/r600_resource.h
@@ -21,12 +21,13 @@
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef R600_RESOURCE_H
#define R600_RESOURCE_H
#include "util/u_transfer.h"
+#include "util/u_vbuf_mgr.h"
/* flag to indicate a resource is to be used as a transfer so should not be tiled */
#define R600_RESOURCE_FLAG_TRANSFER PIPE_RESOURCE_FLAG_DRV_PRIV
/* Texture transfer. */
struct r600_transfer {
@@ -40,13 +41,13 @@ struct r600_transfer {
/* This gets further specialized into either buffer or texture
* structures. Use the vtbl struct to choose between the two
* underlying implementations.
*/
struct r600_resource {
- struct u_resource base;
+ struct u_vbuf_resource b;
struct r600_bo *bo;
u32 size;
unsigned bo_size;
};
struct r600_resource_texture {
@@ -65,16 +66,16 @@ struct r600_resource_texture {
struct r600_resource_texture *flushed_depth_texture;
boolean is_flushing_texture;
};
#define R600_BUFFER_MAGIC 0xabcd1600
+/* XXX this could be removed */
struct r600_resource_buffer {
struct r600_resource r;
uint32_t magic;
- void *user_buffer;
};
struct r600_surface {
struct pipe_surface base;
unsigned aligned_height;
};
@@ -95,17 +96,12 @@ static INLINE struct r600_resource_buffer *r600_buffer(struct pipe_resource *buf
assert(((struct r600_resource_buffer *)buffer)->magic == R600_BUFFER_MAGIC);
return (struct r600_resource_buffer *)buffer;
}
return NULL;
}
-static INLINE boolean r600_is_user_buffer(struct pipe_resource *buffer)
-{
- return r600_buffer(buffer)->user_buffer ? TRUE : FALSE;
-}
-
int r600_texture_depth_flush(struct pipe_context *ctx, struct pipe_resource *texture, boolean just_create);
/* r600_texture.c texture transfer functions. */
struct pipe_transfer* r600_texture_get_transfer(struct pipe_context *ctx,
struct pipe_resource *texture,
unsigned level,
diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index 3b037f8c8c2..3a959465715 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -120,12 +120,15 @@ void r600_bind_vertex_elements(struct pipe_context *ctx, void *state)
{
struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
struct r600_vertex_element *v = (struct r600_vertex_element*)state;
rctx->vertex_elements = v;
if (v) {
+ u_vbuf_mgr_bind_vertex_elements(rctx->vbuf_mgr, state,
+ v->vmgr_elements);
+
rctx->states[v->rstate.id] = &v->rstate;
r600_context_pipe_state_set(&rctx->ctx, &v->rstate);
}
}
void r600_delete_vertex_element(struct pipe_context *ctx, void *state)
@@ -137,12 +140,13 @@ void r600_delete_vertex_element(struct pipe_context *ctx, void *state)
rctx->states[v->rstate.id] = NULL;
}
if (rctx->vertex_elements == state)
rctx->vertex_elements = NULL;
r600_bo_reference(rctx->radeon, &v->fetch_shader, NULL);
+ u_vbuf_mgr_destroy_vertex_elements(rctx->vbuf_mgr, v->vmgr_elements);
FREE(state);
}
void r600_set_index_buffer(struct pipe_context *ctx,
const struct pipe_index_buffer *ib)
@@ -161,131 +165,50 @@ void r600_set_index_buffer(struct pipe_context *ctx,
}
void r600_set_vertex_buffers(struct pipe_context *ctx, unsigned count,
const struct pipe_vertex_buffer *buffers)
{
struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
- struct pipe_vertex_buffer *vbo;
- unsigned max_index = ~0;
int i;
+ /* Zero states. */
for (i = 0; i < count; i++) {
- vbo = (struct pipe_vertex_buffer*)&buffers[i];
-
- pipe_resource_reference(&rctx->vertex_buffer[i].buffer, vbo->buffer);
- pipe_resource_reference(&rctx->real_vertex_buffer[i], NULL);
-
- if (!vbo->buffer) {
- /* Zero states. */
+ if (!buffers[i].buffer) {
if (rctx->family >= CHIP_CEDAR) {
evergreen_context_pipe_state_set_fs_resource(&rctx->ctx, NULL, i);
} else {
r600_context_pipe_state_set_fs_resource(&rctx->ctx, NULL, i);
}
- continue;
- }
-
- if (r600_is_user_buffer(vbo->buffer)) {
- rctx->any_user_vbs = TRUE;
- continue;
- }
-
- pipe_resource_reference(&rctx->real_vertex_buffer[i], vbo->buffer);
-
- /* The stride of zero means we will be fetching only the first
- * vertex, so don't care about max_index. */
- if (!vbo->stride) {
- continue;
- }
-
- /* Update the maximum index. */
- {
- unsigned vbo_max_index =
- (vbo->buffer->width0 - vbo->buffer_offset) / vbo->stride;
- max_index = MIN2(max_index, vbo_max_index);
}
}
-
- for (; i < rctx->nreal_vertex_buffers; i++) {
- pipe_resource_reference(&rctx->vertex_buffer[i].buffer, NULL);
- pipe_resource_reference(&rctx->real_vertex_buffer[i], NULL);
-
- /* Zero states. */
+ for (; i < rctx->vbuf_mgr->nr_real_vertex_buffers; i++) {
if (rctx->family >= CHIP_CEDAR) {
evergreen_context_pipe_state_set_fs_resource(&rctx->ctx, NULL, i);
} else {
r600_context_pipe_state_set_fs_resource(&rctx->ctx, NULL, i);
}
}
- memcpy(rctx->vertex_buffer, buffers, sizeof(struct pipe_vertex_buffer) * count);
-
- rctx->nvertex_buffers = count;
- rctx->nreal_vertex_buffers = count;
- rctx->vb_max_index = max_index;
+ u_vbuf_mgr_set_vertex_buffers(rctx->vbuf_mgr, count, buffers);
}
-
-#define FORMAT_REPLACE(what, withwhat) \
- case PIPE_FORMAT_##what: *format = PIPE_FORMAT_##withwhat; break
-
void *r600_create_vertex_elements(struct pipe_context *ctx,
unsigned count,
const struct pipe_vertex_element *elements)
{
struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
struct r600_vertex_element *v = CALLOC_STRUCT(r600_vertex_element);
- enum pipe_format *format;
- int i;
assert(count < 32);
if (!v)
return NULL;
v->count = count;
- memcpy(v->elements, elements, count * sizeof(struct pipe_vertex_element));
-
- for (i = 0; i < count; i++) {
- v->hw_format[i] = v->elements[i].src_format;
- format = &v->hw_format[i];
-
- switch (*format) {
- FORMAT_REPLACE(R64_FLOAT, R32_FLOAT);
- FORMAT_REPLACE(R64G64_FLOAT, R32G32_FLOAT);
- FORMAT_REPLACE(R64G64B64_FLOAT, R32G32B32_FLOAT);
- FORMAT_REPLACE(R64G64B64A64_FLOAT, R32G32B32A32_FLOAT);
-
- /* r600 doesn't seem to support 32_*SCALED, these formats
- * aren't in D3D10 either. */
- FORMAT_REPLACE(R32_UNORM, R32_FLOAT);
- FORMAT_REPLACE(R32G32_UNORM, R32G32_FLOAT);
- FORMAT_REPLACE(R32G32B32_UNORM, R32G32B32_FLOAT);
- FORMAT_REPLACE(R32G32B32A32_UNORM, R32G32B32A32_FLOAT);
-
- FORMAT_REPLACE(R32_USCALED, R32_FLOAT);
- FORMAT_REPLACE(R32G32_USCALED, R32G32_FLOAT);
- FORMAT_REPLACE(R32G32B32_USCALED, R32G32B32_FLOAT);
- FORMAT_REPLACE(R32G32B32A32_USCALED,R32G32B32A32_FLOAT);
-
- FORMAT_REPLACE(R32_SNORM, R32_FLOAT);
- FORMAT_REPLACE(R32G32_SNORM, R32G32_FLOAT);
- FORMAT_REPLACE(R32G32B32_SNORM, R32G32B32_FLOAT);
- FORMAT_REPLACE(R32G32B32A32_SNORM, R32G32B32A32_FLOAT);
-
- FORMAT_REPLACE(R32_SSCALED, R32_FLOAT);
- FORMAT_REPLACE(R32G32_SSCALED, R32G32_FLOAT);
- FORMAT_REPLACE(R32G32B32_SSCALED, R32G32B32_FLOAT);
- FORMAT_REPLACE(R32G32B32A32_SSCALED,R32G32B32A32_FLOAT);
- default:;
- }
- v->incompatible_layout =
- v->incompatible_layout ||
- v->elements[i].src_format != v->hw_format[i];
-
- v->hw_format_size[i] = align(util_format_get_blocksize(v->hw_format[i]), 4);
- }
+ v->vmgr_elements =
+ u_vbuf_mgr_create_vertex_elements(rctx->vbuf_mgr, count,
+ elements, v->elements);
if (r600_vertex_elements_build_fetch_shader(rctx, v)) {
FREE(v);
return NULL;
}
@@ -430,13 +353,13 @@ void r600_set_constant_buffer(struct pipe_context *ctx, uint shader, uint index,
break;
default:
R600_ERR("unsupported %d\n", shader);
return;
}
- if (buffer != &rbuffer->r.base.b)
+ if (buffer != &rbuffer->r.b.b.b)
pipe_resource_reference((struct pipe_resource**)&rbuffer, NULL);
}
static void r600_vertex_buffer_update(struct r600_pipe_context *rctx)
{
struct r600_pipe_state *rstate;
@@ -446,31 +369,31 @@ static void r600_vertex_buffer_update(struct r600_pipe_context *rctx)
if (rctx->vertex_elements->vbuffer_need_offset) {
/* one resource per vertex elements */
rctx->nvs_resource = rctx->vertex_elements->count;
} else {
/* bind vertex buffer once */
- rctx->nvs_resource = rctx->nreal_vertex_buffers;
+ rctx->nvs_resource = rctx->vbuf_mgr->nr_real_vertex_buffers;
}
for (i = 0 ; i < rctx->nvs_resource; i++) {
rstate = &rctx->vs_resource[i];
rstate->id = R600_PIPE_STATE_RESOURCE;
rstate->nregs = 0;
if (rctx->vertex_elements->vbuffer_need_offset) {
/* one resource per vertex elements */
unsigned vbuffer_index;
vbuffer_index = rctx->vertex_elements->elements[i].vertex_buffer_index;
- vertex_buffer = &rctx->vertex_buffer[vbuffer_index];
- rbuffer = (struct r600_resource*)rctx->real_vertex_buffer[vbuffer_index];
+ vertex_buffer = &rctx->vbuf_mgr->vertex_buffer[vbuffer_index];
+ rbuffer = (struct r600_resource*)rctx->vbuf_mgr->real_vertex_buffer[vbuffer_index];
offset = rctx->vertex_elements->vbuffer_offset[i];
} else {
/* bind vertex buffer once */
- vertex_buffer = &rctx->vertex_buffer[i];
- rbuffer = (struct r600_resource*)rctx->real_vertex_buffer[i];
+ vertex_buffer = &rctx->vbuf_mgr->vertex_buffer[i];
+ rbuffer = (struct r600_resource*)rctx->vbuf_mgr->real_vertex_buffer[i];
offset = 0;
}
if (vertex_buffer == NULL || rbuffer == NULL)
continue;
offset += vertex_buffer->buffer_offset + r600_bo_offset(rbuffer->bo);
@@ -494,21 +417,13 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
struct r600_draw rdraw;
struct r600_pipe_state vgt;
struct r600_drawl draw = {};
unsigned prim;
r600_flush_depth_textures(rctx);
-
- if (rctx->vertex_elements->incompatible_layout) {
- r600_begin_vertex_translate(rctx, info->min_index, info->max_index);
- }
-
- if (rctx->any_user_vbs) {
- r600_upload_user_buffers(rctx, info->min_index, info->max_index);
- }
-
+ u_vbuf_mgr_draw_begin(rctx->vbuf_mgr, info, NULL, NULL);
r600_vertex_buffer_update(rctx);
draw.info = *info;
draw.ctx = ctx;
if (info->indexed && rctx->index_buffer.buffer) {
draw.info.start += rctx->index_buffer.offset / rctx->index_buffer.index_size;
@@ -520,13 +435,13 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
draw.index_size = rctx->index_buffer.index_size;
pipe_resource_reference(&draw.index_buffer, rctx->index_buffer.buffer);
draw.index_buffer_offset = draw.info.start * draw.index_size;
draw.info.start = 0;
- if (r600_is_user_buffer(draw.index_buffer)) {
+ if (u_vbuf_resource(draw.index_buffer)->user_ptr) {
r600_upload_index_buffer(rctx, &draw);
}
} else {
draw.info.index_bias = info->start;
}
@@ -604,11 +519,8 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
struct pipe_resource *tex = rctx->framebuffer.zsbuf->texture;
((struct r600_resource_texture *)tex)->dirty_db = TRUE;
}
pipe_resource_reference(&draw.index_buffer, NULL);
- /* delete previous translated vertex elements */
- if (rctx->tran.new_velems) {
- r600_end_vertex_translate(rctx);
- }
+ u_vbuf_mgr_draw_end(rctx->vbuf_mgr);
}
diff --git a/src/gallium/drivers/r600/r600_texture.c b/src/gallium/drivers/r600/r600_texture.c
index 14a289444df..b7bfdd8c166 100644
--- a/src/gallium/drivers/r600/r600_texture.c
+++ b/src/gallium/drivers/r600/r600_texture.c
@@ -72,13 +72,13 @@ static void r600_copy_from_staging_texture(struct pipe_context *ctx, struct r600
unsigned r600_texture_get_offset(struct r600_resource_texture *rtex,
unsigned level, unsigned layer)
{
unsigned offset = rtex->offset[level];
- switch (rtex->resource.base.b.target) {
+ switch (rtex->resource.b.b.b.target) {
case PIPE_TEXTURE_3D:
case PIPE_TEXTURE_CUBE:
return offset + layer * rtex->layer_size[level];
default:
assert(layer == 0);
return offset;
@@ -164,13 +164,13 @@ static unsigned mip_minify(unsigned size, unsigned level)
}
static unsigned r600_texture_get_stride(struct pipe_screen *screen,
struct r600_resource_texture *rtex,
unsigned level)
{
- struct pipe_resource *ptex = &rtex->resource.base.b;
+ struct pipe_resource *ptex = &rtex->resource.b.b.b;
unsigned width, stride, tile_width;
if (rtex->pitch_override)
return rtex->pitch_override;
width = mip_minify(ptex->width0, level);
@@ -185,13 +185,13 @@ static unsigned r600_texture_get_stride(struct pipe_screen *screen,
}
static unsigned r600_texture_get_nblocksy(struct pipe_screen *screen,
struct r600_resource_texture *rtex,
unsigned level)
{
- struct pipe_resource *ptex = &rtex->resource.base.b;
+ struct pipe_resource *ptex = &rtex->resource.b.b.b;
unsigned height, tile_height;
height = mip_minify(ptex->height0, level);
if (util_format_is_plain(ptex->format)) {
tile_height = r600_get_height_alignment(screen,
rtex->array_mode[level]);
@@ -208,13 +208,13 @@ static unsigned pitch_to_width(enum pipe_format format, unsigned pitch_in_bytes)
}
static void r600_texture_set_array_mode(struct pipe_screen *screen,
struct r600_resource_texture *rtex,
unsigned level, unsigned array_mode)
{
- struct pipe_resource *ptex = &rtex->resource.base.b;
+ struct pipe_resource *ptex = &rtex->resource.b.b.b;
switch (array_mode) {
case V_0280A0_ARRAY_LINEAR_GENERAL:
case V_0280A0_ARRAY_LINEAR_ALIGNED:
case V_0280A0_ARRAY_1D_TILED_THIN1:
default:
@@ -239,13 +239,13 @@ static void r600_texture_set_array_mode(struct pipe_screen *screen,
}
static void r600_setup_miptree(struct pipe_screen *screen,
struct r600_resource_texture *rtex,
unsigned array_mode)
{
- struct pipe_resource *ptex = &rtex->resource.base.b;
+ struct pipe_resource *ptex = &rtex->resource.b.b.b;
struct radeon *radeon = (struct radeon *)screen->winsys;
enum chip_class chipc = r600_get_family_class(radeon);
unsigned pitch, size, layer_size, i, offset;
unsigned nblocksy;
for (i = 0, offset = 0; i <= ptex->last_level; i++) {
@@ -369,16 +369,16 @@ r600_texture_create_object(struct pipe_screen *screen,
rtex = CALLOC_STRUCT(r600_resource_texture);
if (rtex == NULL)
return NULL;
resource = &rtex->resource;
- resource->base.b = *base;
- resource->base.vtbl = &r600_texture_vtbl;
- pipe_reference_init(&resource->base.b.reference, 1);
- resource->base.b.screen = screen;
+ resource->b.b.b = *base;
+ resource->b.b.vtbl = &r600_texture_vtbl;
+ pipe_reference_init(&resource->b.b.b.reference, 1);
+ resource->b.b.b.screen = screen;
resource->bo = bo;
rtex->pitch_override = pitch_in_bytes_override;
/* only mark depth textures the HW can hit as depth textures */
if (util_format_is_depth_or_stencil(base->format) && permit_hardware_blit(screen, base))
rtex->depth = 1;
@@ -386,13 +386,13 @@ r600_texture_create_object(struct pipe_screen *screen,
rtex->tiled = 1;
r600_setup_miptree(screen, rtex, array_mode);
resource->size = rtex->size;
if (!resource->bo) {
- struct pipe_resource *ptex = &rtex->resource.base.b;
+ struct pipe_resource *ptex = &rtex->resource.b.b.b;
int base_align = r600_get_base_alignment(screen, ptex->format, array_mode);
resource->bo = r600_bo(radeon, rtex->size, base_align, base->bind, base->usage);
if (!resource->bo) {
FREE(rtex);
return NULL;
diff --git a/src/gallium/drivers/r600/r600_translate.c b/src/gallium/drivers/r600/r600_translate.c
index 68429b99d01..a980eac95e0 100644
--- a/src/gallium/drivers/r600/r600_translate.c
+++ b/src/gallium/drivers/r600/r600_translate.c
@@ -20,182 +20,17 @@
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Dave Airlie <airlied@redhat.com>
*/
-#include "translate/translate_cache.h"
-#include "translate/translate.h"
-#include <pipebuffer/pb_buffer.h>
#include <util/u_index_modify.h>
+#include "util/u_inlines.h"
#include "util/u_upload_mgr.h"
#include "r600_pipe.h"
-void r600_begin_vertex_translate(struct r600_pipe_context *rctx,
- int min_index, int max_index)
-{
- struct pipe_context *pipe = &rctx->context;
- struct translate_key key = {0};
- struct translate_element *te;
- unsigned tr_elem_index[PIPE_MAX_ATTRIBS] = {0};
- struct translate *tr;
- struct r600_vertex_element *ve = rctx->vertex_elements;
- boolean vb_translated[PIPE_MAX_ATTRIBS] = {0};
- uint8_t *vb_map[PIPE_MAX_ATTRIBS] = {0}, *out_map;
- struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {0};
- struct pipe_resource *out_buffer = NULL;
- unsigned i, num_verts, out_offset;
- struct pipe_vertex_element new_velems[PIPE_MAX_ATTRIBS];
- boolean flushed;
-
- /* Initialize the translate key, i.e. the recipe how vertices should be
- * translated. */
- for (i = 0; i < ve->count; i++) {
- enum pipe_format output_format = ve->hw_format[i];
- unsigned output_format_size = ve->hw_format_size[i];
-
- /* Check for support. */
- if (ve->elements[i].src_format == ve->hw_format[i]) {
- continue;
- }
-
- /* Workaround for translate: output floats instead of halfs. */
- switch (output_format) {
- case PIPE_FORMAT_R16_FLOAT:
- output_format = PIPE_FORMAT_R32_FLOAT;
- output_format_size = 4;
- break;
- case PIPE_FORMAT_R16G16_FLOAT:
- output_format = PIPE_FORMAT_R32G32_FLOAT;
- output_format_size = 8;
- break;
- case PIPE_FORMAT_R16G16B16_FLOAT:
- output_format = PIPE_FORMAT_R32G32B32_FLOAT;
- output_format_size = 12;
- break;
- case PIPE_FORMAT_R16G16B16A16_FLOAT:
- output_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
- output_format_size = 16;
- break;
- default:;
- }
-
- /* Add this vertex element. */
- te = &key.element[key.nr_elements];
- /*te->type;
- te->instance_divisor;*/
- te->input_buffer = ve->elements[i].vertex_buffer_index;
- te->input_format = ve->elements[i].src_format;
- te->input_offset = ve->elements[i].src_offset;
- te->output_format = output_format;
- te->output_offset = key.output_stride;
-
- key.output_stride += output_format_size;
- vb_translated[ve->elements[i].vertex_buffer_index] = TRUE;
- tr_elem_index[i] = key.nr_elements;
- key.nr_elements++;
- }
-
- /* Get a translate object. */
- tr = translate_cache_find(rctx->tran.translate_cache, &key);
-
- /* Map buffers we want to translate. */
- for (i = 0; i < rctx->nvertex_buffers; i++) {
- if (vb_translated[i]) {
- struct pipe_vertex_buffer *vb = &rctx->vertex_buffer[i];
-
- vb_map[i] = pipe_buffer_map(pipe, vb->buffer,
- PIPE_TRANSFER_READ, &vb_transfer[i]);
-
- tr->set_buffer(tr, i,
- vb_map[i] + vb->buffer_offset + vb->stride * min_index,
- vb->stride, ~0);
- }
- }
-
- /* Create and map the output buffer. */
- num_verts = max_index + 1 - min_index;
-
- u_upload_alloc(rctx->upload_vb,
- key.output_stride * min_index,
- key.output_stride * num_verts,
- &out_offset, &out_buffer, &flushed,
- (void**)&out_map);
-
- out_offset -= key.output_stride * min_index;
-
- /* Translate. */
- tr->run(tr, 0, num_verts, 0, out_map);
-
- /* Unmap all buffers. */
- for (i = 0; i < rctx->nvertex_buffers; i++) {
- if (vb_translated[i]) {
- pipe_buffer_unmap(pipe, vb_transfer[i]);
- }
- }
-
- /* Find the first free slot. */
- rctx->tran.vb_slot = ~0;
- for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
- if (!rctx->vertex_buffer[i].buffer) {
- rctx->tran.vb_slot = i;
-
- if (i >= rctx->nvertex_buffers) {
- rctx->nreal_vertex_buffers = i+1;
- }
- break;
- }
- }
-
- if (rctx->tran.vb_slot != ~0) {
- /* Setup the new vertex buffer. */
- pipe_resource_reference(&rctx->real_vertex_buffer[rctx->tran.vb_slot], out_buffer);
- rctx->vertex_buffer[rctx->tran.vb_slot].buffer_offset = out_offset;
- rctx->vertex_buffer[rctx->tran.vb_slot].stride = key.output_stride;
-
- /* Setup new vertex elements. */
- for (i = 0; i < ve->count; i++) {
- if (vb_translated[ve->elements[i].vertex_buffer_index]) {
- te = &key.element[tr_elem_index[i]];
- new_velems[i].instance_divisor = ve->elements[i].instance_divisor;
- new_velems[i].src_format = te->output_format;
- new_velems[i].src_offset = te->output_offset;
- new_velems[i].vertex_buffer_index = rctx->tran.vb_slot;
- } else {
- memcpy(&new_velems[i], &ve->elements[i],
- sizeof(struct pipe_vertex_element));
- }
- }
-
- rctx->tran.saved_velems = rctx->vertex_elements;
- rctx->tran.new_velems =
- pipe->create_vertex_elements_state(pipe, ve->count, new_velems);
- pipe->bind_vertex_elements_state(pipe, rctx->tran.new_velems);
- }
-
- pipe_resource_reference(&out_buffer, NULL);
-}
-
-void r600_end_vertex_translate(struct r600_pipe_context *rctx)
-{
- struct pipe_context *pipe = &rctx->context;
-
- if (rctx->tran.new_velems == NULL) {
- return;
- }
-
- /* Restore vertex elements. */
- pipe->bind_vertex_elements_state(pipe, rctx->tran.saved_velems);
- rctx->tran.saved_velems = NULL;
- pipe->delete_vertex_elements_state(pipe, rctx->tran.new_velems);
- rctx->tran.new_velems = NULL;
-
- /* Delete the now-unused VBO. */
- pipe_resource_reference(&rctx->real_vertex_buffer[rctx->tran.vb_slot], NULL);
- rctx->nreal_vertex_buffers = rctx->nvertex_buffers;
-}
void r600_translate_index_buffer(struct r600_pipe_context *r600,
struct pipe_resource **index_buffer,
unsigned *index_size,
unsigned *start, unsigned count)
{
@@ -203,13 +38,13 @@ void r600_translate_index_buffer(struct r600_pipe_context *r600,
unsigned out_offset;
void *ptr;
boolean flushed;
switch (*index_size) {
case 1:
- u_upload_alloc(r600->upload_vb, 0, count * 2,
+ u_upload_alloc(r600->upload_ib, 0, count * 2,
&out_offset, &out_buffer, &flushed, &ptr);
util_shorten_ubyte_elts_to_userptr(
&r600->context, *index_buffer, 0, *start, count, ptr);
pipe_resource_reference(index_buffer, out_buffer);