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authorMarek Olšák <maraeo@gmail.com>2012-04-24 20:58:47 +0200
committerMarek Olšák <maraeo@gmail.com>2012-04-30 01:14:26 +0200
commit4552fd50d959ab99546cfa994f8ba5bdf5d66bc7 (patch)
tree6fa793d4b11531704029adfd33bfd5a94b90e230 /src/mesa/state_tracker/st_draw.c
parent7a0545972694e6afc6c5ac60db563defa79c20d9 (diff)
gallium: add void *user_buffer in pipe_vertex_buffer
This reduces CPU overhead in st_draw_vbo and removes a lot of unnecessary code in that function which was required only to comply with the gallium interface, but wasn't any useful really. Adapted drivers: i915, llvmpipe, r300, softpipe. No changes required in: r600, radeonsi. User vertex buffers have been disabled in nv30, nv50, nvc0 and svga to keep things working.
Diffstat (limited to 'src/mesa/state_tracker/st_draw.c')
-rw-r--r--src/mesa/state_tracker/st_draw.c142
1 files changed, 17 insertions, 125 deletions
diff --git a/src/mesa/state_tracker/st_draw.c b/src/mesa/state_tracker/st_draw.c
index fa7c18895c7..09f41abc13b 100644
--- a/src/mesa/state_tracker/st_draw.c
+++ b/src/mesa/state_tracker/st_draw.c
@@ -403,18 +403,12 @@ setup_interleaved_attribs(struct gl_context *ctx,
const struct st_vp_variant *vpv,
const struct gl_client_array **arrays,
struct pipe_vertex_buffer *vbuffer,
- struct pipe_vertex_element velements[],
- unsigned max_index,
- unsigned num_instances)
+ struct pipe_vertex_element velements[])
{
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
GLuint attr;
const GLubyte *low_addr = NULL;
GLboolean usingVBO; /* all arrays in a VBO? */
struct gl_buffer_object *bufobj;
- GLuint user_buffer_size = 0;
- GLuint vertex_size = 0; /* bytes per vertex, in bytes */
GLsizei stride;
/* Find the lowest address of the arrays we're drawing,
@@ -465,18 +459,6 @@ setup_interleaved_attribs(struct gl_context *ctx,
array->Normalized,
array->Integer);
assert(velements[attr].src_format);
-
- if (!usingVBO) {
- /* how many bytes referenced by this attribute array? */
- uint divisor = array->InstanceDivisor;
- uint last_index = divisor ? num_instances / divisor : max_index;
- uint bytes = src_offset + stride * last_index + element_size;
-
- user_buffer_size = MAX2(user_buffer_size, bytes);
-
- /* update vertex size */
- vertex_size = MAX2(vertex_size, src_offset + element_size);
- }
}
/*
@@ -485,9 +467,9 @@ setup_interleaved_attribs(struct gl_context *ctx,
if (vpv->num_inputs == 0) {
/* just defensive coding here */
vbuffer->buffer = NULL;
+ vbuffer->user_buffer = NULL;
vbuffer->buffer_offset = 0;
vbuffer->stride = 0;
- st->num_user_attribs = 0;
}
else if (usingVBO) {
/* all interleaved arrays in a VBO */
@@ -498,26 +480,17 @@ setup_interleaved_attribs(struct gl_context *ctx,
return GL_FALSE;
}
- vbuffer->buffer = NULL;
- pipe_resource_reference(&vbuffer->buffer, stobj->buffer);
+ vbuffer->buffer = stobj->buffer;
+ vbuffer->user_buffer = NULL;
vbuffer->buffer_offset = pointer_to_offset(low_addr);
vbuffer->stride = stride;
- st->num_user_attribs = 0;
}
else {
/* all interleaved arrays in user memory */
- vbuffer->buffer = pipe_user_buffer_create(pipe->screen,
- (void*) low_addr,
- user_buffer_size,
- PIPE_BIND_VERTEX_BUFFER);
+ vbuffer->buffer = NULL;
+ vbuffer->user_buffer = low_addr;
vbuffer->buffer_offset = 0;
vbuffer->stride = stride;
-
- /* Track user vertex buffers. */
- pipe_resource_reference(&st->user_attrib[0].buffer, vbuffer->buffer);
- st->user_attrib[0].element_size = vertex_size;
- st->user_attrib[0].stride = stride;
- st->num_user_attribs = 1;
}
return GL_TRUE;
@@ -537,22 +510,17 @@ setup_non_interleaved_attribs(struct gl_context *ctx,
const struct st_vp_variant *vpv,
const struct gl_client_array **arrays,
struct pipe_vertex_buffer vbuffer[],
- struct pipe_vertex_element velements[],
- unsigned max_index,
- unsigned num_instances)
+ struct pipe_vertex_element velements[])
{
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
GLuint attr;
for (attr = 0; attr < vpv->num_inputs; attr++) {
const GLuint mesaAttr = vp->index_to_input[attr];
const struct gl_client_array *array = arrays[mesaAttr];
struct gl_buffer_object *bufobj = array->BufferObj;
- GLuint element_size = array->_ElementSize;
GLsizei stride = array->StrideB;
- assert(element_size == array->Size * _mesa_sizeof_type(array->Type));
+ assert(array->_ElementSize == array->Size * _mesa_sizeof_type(array->Type));
if (_mesa_is_bufferobj(bufobj)) {
/* Attribute data is in a VBO.
@@ -566,49 +534,28 @@ setup_non_interleaved_attribs(struct gl_context *ctx,
return GL_FALSE;
}
- vbuffer[attr].buffer = NULL;
- pipe_resource_reference(&vbuffer[attr].buffer, stobj->buffer);
+ vbuffer[attr].buffer = stobj->buffer;
+ vbuffer[attr].user_buffer = NULL;
vbuffer[attr].buffer_offset = pointer_to_offset(array->Ptr);
}
else {
/* wrap user data */
- uint bytes;
void *ptr;
if (array->Ptr) {
- uint divisor = array->InstanceDivisor;
- uint last_index = divisor ? num_instances / divisor : max_index;
-
- bytes = stride * last_index + element_size;
-
ptr = (void *) array->Ptr;
}
else {
/* no array, use ctx->Current.Attrib[] value */
- bytes = element_size = sizeof(ctx->Current.Attrib[0]);
ptr = (void *) ctx->Current.Attrib[mesaAttr];
stride = 0;
}
assert(ptr);
- assert(bytes);
-
- vbuffer[attr].buffer =
- pipe_user_buffer_create(pipe->screen, ptr, bytes,
- PIPE_BIND_VERTEX_BUFFER);
+ vbuffer[attr].buffer = NULL;
+ vbuffer[attr].user_buffer = ptr;
vbuffer[attr].buffer_offset = 0;
-
- /* Track user vertex buffers. */
- pipe_resource_reference(&st->user_attrib[attr].buffer, vbuffer[attr].buffer);
- st->user_attrib[attr].element_size = element_size;
- st->user_attrib[attr].stride = stride;
- st->num_user_attribs = MAX2(st->num_user_attribs, attr + 1);
-
- if (!vbuffer[attr].buffer) {
- /* probably ran out of memory */
- return GL_FALSE;
- }
}
/* common-case setup */
@@ -896,9 +843,7 @@ translate_prim(const struct gl_context *ctx, unsigned prim)
*/
static GLboolean
st_validate_varrays(struct gl_context *ctx,
- const struct gl_client_array **arrays,
- unsigned max_index,
- unsigned num_instances)
+ const struct gl_client_array **arrays)
{
struct st_context *st = st_context(ctx);
const struct st_vertex_program *vp;
@@ -906,8 +851,6 @@ st_validate_varrays(struct gl_context *ctx,
struct pipe_vertex_buffer vbuffer[PIPE_MAX_SHADER_INPUTS];
struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
unsigned num_vbuffers, num_velements;
- GLuint attr;
- unsigned i;
/* must get these after state validation! */
vp = st->vp;
@@ -915,18 +858,12 @@ st_validate_varrays(struct gl_context *ctx,
memset(velements, 0, sizeof(struct pipe_vertex_element) * vpv->num_inputs);
- /* Unreference any user vertex buffers. */
- for (i = 0; i < st->num_user_attribs; i++) {
- pipe_resource_reference(&st->user_attrib[i].buffer, NULL);
- }
- st->num_user_attribs = 0;
-
/*
* Setup the vbuffer[] and velements[] arrays.
*/
if (is_interleaved_arrays(vp, vpv, arrays)) {
- if (!setup_interleaved_attribs(ctx, vp, vpv, arrays, vbuffer, velements,
- max_index, num_instances)) {
+ if (!setup_interleaved_attribs(ctx, vp, vpv, arrays, vbuffer,
+ velements)) {
return GL_FALSE;
}
@@ -937,8 +874,7 @@ st_validate_varrays(struct gl_context *ctx,
}
else {
if (!setup_non_interleaved_attribs(ctx, vp, vpv, arrays,
- vbuffer, velements, max_index,
- num_instances)) {
+ vbuffer, velements)) {
return GL_FALSE;
}
@@ -949,14 +885,6 @@ st_validate_varrays(struct gl_context *ctx,
cso_set_vertex_buffers(st->cso_context, num_vbuffers, vbuffer);
cso_set_vertex_elements(st->cso_context, num_velements, velements);
- /* unreference buffers (frees wrapped user-space buffer objects)
- * This is OK, because the pipe driver should reference buffers by itself
- * in set_vertex_buffers. */
- for (attr = 0; attr < num_vbuffers; attr++) {
- pipe_resource_reference(&vbuffer[attr].buffer, NULL);
- assert(!vbuffer[attr].buffer);
- }
-
return GL_TRUE;
}
@@ -982,7 +910,6 @@ st_draw_vbo(struct gl_context *ctx,
struct pipe_index_buffer ibuffer = {0};
struct pipe_draw_info info;
unsigned i, num_instances = 1;
- unsigned max_index_plus_base;
GLboolean new_array =
st->dirty.st &&
(st->dirty.mesa & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT)) != 0;
@@ -991,8 +918,6 @@ st_draw_vbo(struct gl_context *ctx,
assert(ctx->NewState == 0x0);
if (ib) {
- int max_base_vertex = 0;
-
/* Gallium probably doesn't want this in some cases. */
if (!index_bounds_valid)
if (!all_varyings_in_vbos(arrays))
@@ -1001,16 +926,7 @@ st_draw_vbo(struct gl_context *ctx,
for (i = 0; i < nr_prims; i++) {
num_instances = MAX2(num_instances, prims[i].num_instances);
- max_base_vertex = MAX2(max_base_vertex, prims[i].basevertex);
}
-
- /* Compute the sum of max_index and max_base_vertex. That's the value
- * we need to use when creating buffers.
- */
- if (max_index == ~0)
- max_index_plus_base = max_index;
- else
- max_index_plus_base = max_index + max_base_vertex;
}
else {
/* Get min/max index for non-indexed drawing. */
@@ -1022,9 +938,6 @@ st_draw_vbo(struct gl_context *ctx,
max_index = MAX2(max_index, prims[i].start + prims[i].count - 1);
num_instances = MAX2(num_instances, prims[i].num_instances);
}
-
- /* The base vertex offset only applies to indexed drawing */
- max_index_plus_base = max_index;
}
/* Validate state. */
@@ -1041,8 +954,7 @@ st_draw_vbo(struct gl_context *ctx,
st_validate_state(st);
if (new_array) {
- if (!st_validate_varrays(ctx, arrays, max_index_plus_base,
- num_instances)) {
+ if (!st_validate_varrays(ctx, arrays)) {
/* probably out of memory, no-op the draw call */
return;
}
@@ -1057,26 +969,6 @@ st_draw_vbo(struct gl_context *ctx,
#endif
}
- /* Notify the driver that the content of user buffers may have been
- * changed. */
- assert(max_index >= min_index);
- if (!new_array && st->num_user_attribs) {
- for (i = 0; i < st->num_user_attribs; i++) {
- if (st->user_attrib[i].buffer) {
- unsigned element_size = st->user_attrib[i].element_size;
- unsigned stride = st->user_attrib[i].stride;
- unsigned min_offset = min_index * stride;
- unsigned max_offset = max_index_plus_base * stride + element_size;
-
- assert(max_offset > min_offset);
-
- pipe->redefine_user_buffer(pipe, st->user_attrib[i].buffer,
- min_offset,
- max_offset - min_offset);
- }
- }
- }
-
util_draw_init_info(&info);
if (ib) {
setup_index_buffer(st, ib, &ibuffer);