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dri/nouveau: Try to keep client buffers smaller than the scratch VBO length.

This commit is contained in:
Francisco Jerez 2010-03-04 21:32:07 +01:00
parent 43c347c63e
commit 80316cbefa
1 changed files with 26 additions and 0 deletions
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26
src/mesa/drivers/dri/nouveau/nouveau_vbo_t.c
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@ -243,6 +243,23 @@ vbo_choose_attrs(GLcontext *ctx, const struct gl_client_array **arrays)
vbo_emit_attr(ctx, arrays, VERT_ATTRIB_POS);
}
static unsigned
get_max_client_stride(GLcontext *ctx)
{
struct nouveau_render_state *render = to_render_state(ctx);
int i, s = 0;
for (i = 0; i < render->attr_count; i++) {
int attr = render->map[i];
struct nouveau_array_state *a = &render->attrs[attr];
if (attr >= 0 && !a->bo)
s = MAX2(a->stride, s);
}
return s;
}
static void
TAG(vbo_render_prims)(GLcontext *ctx, const struct gl_client_array **arrays,
const struct _mesa_prim *prims, GLuint nr_prims,
@ -257,9 +274,18 @@ vbo_maybe_split(GLcontext *ctx, const struct gl_client_array **arrays,
GLuint min_index, GLuint max_index)
{
struct nouveau_context *nctx = to_nouveau_context(ctx);
struct nouveau_render_state *render = to_render_state(ctx);
unsigned pushbuf_avail = PUSHBUF_DWORDS - 2 * nctx->bo.count,
vert_avail = get_max_vertices(ctx, NULL, pushbuf_avail),
idx_avail = get_max_vertices(ctx, ib, pushbuf_avail);
int stride;
/* Try to keep client buffers smaller than the scratch BOs. */
if (!ib && render->mode == VBO &&
(stride = get_max_client_stride(ctx)))
vert_avail = MIN2(vert_avail,
RENDER_SCRATCH_SIZE / stride);
if ((ib && ib->count > idx_avail) ||
(!ib && max_index - min_index > vert_avail)) {