static void i915_set_vertex_buffers(struct pipe_context *pipe,
unsigned count,
const struct pipe_vertex_buffer *buffers)
{
struct i915_context *i915 = i915_context(pipe);
struct draw_context *draw = i915->draw;
int i;
util_copy_vertex_buffers(i915->saved_vertex_buffers,
&i915->saved_nr_vertex_buffers,
buffers, count);
#if 0
/* XXX doesn't look like this is needed */
/* unmap old */
for (i = 0; i < i915->num_vertex_buffers; i++) {
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
#endif
/* pass-through to draw module */
draw_set_vertex_buffers(draw, count, buffers);
/* map new */
for (i = 0; i < count; i++) {
void *buf = i915_buffer(buffers[i].buffer)->data;
draw_set_mapped_vertex_buffer(draw, i, buf);
}
}
/**
* Draw vertex arrays, with optional indexing, optional instancing.
* All the other drawing functions are implemented in terms of this function.
* Basically, map the vertex buffers (and drawing surfaces), then hand off
* the drawing to the 'draw' module.
*/
static void
llvmpipe_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
{
struct llvmpipe_context *lp = llvmpipe_context(pipe);
struct draw_context *draw = lp->draw;
const void *mapped_indices = NULL;
unsigned i;
if (!llvmpipe_check_render_cond(lp))
return;
if (lp->dirty)
llvmpipe_update_derived( lp );
/*
* Map vertex buffers
*/
for (i = 0; i < lp->num_vertex_buffers; i++) {
const void *buf = lp->vertex_buffer[i].user_buffer;
if (!buf)
buf = llvmpipe_resource_data(lp->vertex_buffer[i].buffer);
draw_set_mapped_vertex_buffer(draw, i, buf);
}
/* Map index buffer, if present */
if (info->indexed) {
mapped_indices = lp->index_buffer.user_buffer;
if (!mapped_indices)
mapped_indices = llvmpipe_resource_data(lp->index_buffer.buffer);
draw_set_indexes(draw,
(ubyte *) mapped_indices + lp->index_buffer.offset,
lp->index_buffer.index_size);
}
llvmpipe_prepare_vertex_sampling(lp,
lp->num_sampler_views[PIPE_SHADER_VERTEX],
lp->sampler_views[PIPE_SHADER_VERTEX]);
/* draw! */
draw_vbo(draw, info);
/*
* unmap vertex/index buffers
*/
for (i = 0; i < lp->num_vertex_buffers; i++) {
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
if (mapped_indices) {
draw_set_indexes(draw, NULL, 0);
}
llvmpipe_cleanup_vertex_sampling(lp);
/*
* TODO: Flush only when a user vertex/index buffer is present
* (or even better, modify draw module to do this
* internally when this condition is seen?)
*/
draw_flush(draw);
}
/* SW TCL arrays, using Draw. */
boolean r300_swtcl_draw_arrays(struct pipe_context* pipe,
unsigned mode,
unsigned start,
unsigned count)
{
struct r300_context* r300 = r300_context(pipe);
int i;
if (!u_trim_pipe_prim(mode, &count)) {
return FALSE;
}
for (i = 0; i < r300->vertex_buffer_count; i++) {
void* buf = pipe_buffer_map(pipe->screen,
r300->vertex_buffer[i].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_vertex_buffer(r300->draw, i, buf);
}
draw_set_mapped_element_buffer(r300->draw, 0, NULL);
draw_set_mapped_constant_buffer(r300->draw,
r300->shader_constants[PIPE_SHADER_VERTEX].constants,
r300->shader_constants[PIPE_SHADER_VERTEX].count *
(sizeof(float) * 4));
draw_arrays(r300->draw, mode, start, count);
for (i = 0; i < r300->vertex_buffer_count; i++) {
pipe_buffer_unmap(pipe->screen, r300->vertex_buffer[i].buffer);
draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
}
return TRUE;
}
/* SW TCL elements, using Draw. */
static void r300_swtcl_draw_vbo(struct pipe_context* pipe,
const struct pipe_draw_info *info)
{
struct r300_context* r300 = r300_context(pipe);
struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
struct pipe_transfer *ib_transfer = NULL;
int i;
void *indices = NULL;
boolean indexed = info->indexed && r300->vbuf_mgr->index_buffer.buffer;
if (r300->skip_rendering) {
return;
}
r300_update_derived_state(r300);
r300_reserve_cs_dwords(r300,
PREP_EMIT_STATES | PREP_EMIT_VARRAYS_SWTCL |
(indexed ? PREP_INDEXED : 0),
indexed ? 256 : 6);
for (i = 0; i < r300->vbuf_mgr->nr_vertex_buffers; i++) {
if (r300->vbuf_mgr->vertex_buffer[i].buffer) {
void *buf = pipe_buffer_map(pipe,
r300->vbuf_mgr->vertex_buffer[i].buffer,
PIPE_TRANSFER_READ |
PIPE_TRANSFER_UNSYNCHRONIZED,
&vb_transfer[i]);
draw_set_mapped_vertex_buffer(r300->draw, i, buf);
}
}
if (indexed) {
indices = pipe_buffer_map(pipe, r300->vbuf_mgr->index_buffer.buffer,
PIPE_TRANSFER_READ |
PIPE_TRANSFER_UNSYNCHRONIZED, &ib_transfer);
}
draw_set_mapped_index_buffer(r300->draw, indices);
r300->draw_vbo_locked = TRUE;
r300->draw_first_emitted = FALSE;
draw_vbo(r300->draw, info);
draw_flush(r300->draw);
r300->draw_vbo_locked = FALSE;
for (i = 0; i < r300->vbuf_mgr->nr_vertex_buffers; i++) {
if (r300->vbuf_mgr->vertex_buffer[i].buffer) {
pipe_buffer_unmap(pipe, vb_transfer[i]);
draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
}
}
if (indexed) {
pipe_buffer_unmap(pipe, ib_transfer);
draw_set_mapped_index_buffer(r300->draw, NULL);
}
}
/**
* Draw vertex arrays, with optional indexing.
* Basically, map the vertex buffers (and drawing surfaces), then hand off
* the drawing to the 'draw' module.
*
* XXX should the element buffer be specified/bound with a separate function?
*/
static void
cell_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
{
struct cell_context *cell = cell_context(pipe);
struct draw_context *draw = cell->draw;
void *mapped_indices = NULL;
unsigned i;
if (cell->dirty)
cell_update_derived( cell );
#if 0
cell_map_surfaces(cell);
#endif
/*
* Map vertex buffers
*/
for (i = 0; i < cell->num_vertex_buffers; i++) {
void *buf = cell_resource(cell->vertex_buffer[i].buffer)->data;
draw_set_mapped_vertex_buffer(draw, i, buf);
}
/* Map index buffer, if present */
if (info->indexed && cell->index_buffer.buffer)
mapped_indices = cell_resource(cell->index_buffer.buffer)->data;
draw_set_mapped_index_buffer(draw, mapped_indices);
/* draw! */
draw_vbo(draw, info);
/*
* unmap vertex/index buffers - will cause draw module to flush
*/
for (i = 0; i < cell->num_vertex_buffers; i++) {
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
if (mapped_indices) {
draw_set_mapped_index_buffer(draw, NULL);
}
/*
* TODO: Flush only when a user vertex/index buffer is present
* (or even better, modify draw module to do this
* internally when this condition is seen?)
*/
draw_flush(draw);
}
void
nvfx_draw_vbo_swtnl(struct pipe_context *pipe, const struct pipe_draw_info* info)
{
struct nvfx_context *nvfx = nvfx_context(pipe);
unsigned i;
void *map;
if (!nvfx_state_validate_swtnl(nvfx))
return;
nvfx_state_emit(nvfx);
/* these must be passed without adding the offsets */
for (i = 0; i < nvfx->vtxbuf_nr; i++) {
map = nvfx_buffer(nvfx->vtxbuf[i].buffer)->data;
draw_set_mapped_vertex_buffer(nvfx->draw, i, map);
}
map = NULL;
if (info->indexed && nvfx->idxbuf.buffer)
map = nvfx_buffer(nvfx->idxbuf.buffer)->data;
draw_set_mapped_index_buffer(nvfx->draw, map);
if (nvfx->constbuf[PIPE_SHADER_VERTEX]) {
const unsigned nr = nvfx->constbuf_nr[PIPE_SHADER_VERTEX];
map = nvfx_buffer(nvfx->constbuf[PIPE_SHADER_VERTEX])->data;
draw_set_mapped_constant_buffer(nvfx->draw, PIPE_SHADER_VERTEX, 0,
map, nr);
}
draw_vbo(nvfx->draw, info);
draw_flush(nvfx->draw);
}
enum pipe_error
svga_swtnl_draw_vbo(struct svga_context *svga,
const struct pipe_draw_info *info)
{
struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
struct pipe_transfer *ib_transfer = NULL;
struct pipe_transfer *cb_transfer = NULL;
struct draw_context *draw = svga->swtnl.draw;
unsigned i;
const void *map;
enum pipe_error ret;
assert(!svga->dirty);
assert(svga->state.sw.need_swtnl);
assert(draw);
/* Make sure that the need_swtnl flag does not go away */
svga->state.sw.in_swtnl_draw = TRUE;
ret = svga_update_state(svga, SVGA_STATE_SWTNL_DRAW);
if (ret != PIPE_OK) {
svga_context_flush(svga, NULL);
ret = svga_update_state(svga, SVGA_STATE_SWTNL_DRAW);
svga->swtnl.new_vbuf = TRUE;
assert(ret == PIPE_OK);
}
/*
* Map vertex buffers
*/
for (i = 0; i < svga->curr.num_vertex_buffers; i++) {
if (svga->curr.vb[i].buffer) {
map = pipe_buffer_map(&svga->pipe,
svga->curr.vb[i].buffer,
PIPE_TRANSFER_READ,
&vb_transfer[i]);
draw_set_mapped_vertex_buffer(draw, i, map);
}
}
/* Map index buffer, if present */
map = NULL;
if (info->indexed && svga->curr.ib.buffer) {
map = pipe_buffer_map(&svga->pipe, svga->curr.ib.buffer,
PIPE_TRANSFER_READ,
&ib_transfer);
draw_set_indexes(draw,
(const ubyte *) map + svga->curr.ib.offset,
svga->curr.ib.index_size);
}
if (svga->curr.cb[PIPE_SHADER_VERTEX]) {
map = pipe_buffer_map(&svga->pipe,
svga->curr.cb[PIPE_SHADER_VERTEX],
PIPE_TRANSFER_READ,
&cb_transfer);
assert(map);
draw_set_mapped_constant_buffer(
draw, PIPE_SHADER_VERTEX, 0,
map,
svga->curr.cb[PIPE_SHADER_VERTEX]->width0);
}
draw_vbo(draw, info);
draw_flush(svga->swtnl.draw);
/* Ensure the draw module didn't touch this */
assert(i == svga->curr.num_vertex_buffers);
/*
* unmap vertex/index buffers
*/
for (i = 0; i < svga->curr.num_vertex_buffers; i++) {
if (svga->curr.vb[i].buffer) {
pipe_buffer_unmap(&svga->pipe, vb_transfer[i]);
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
}
if (ib_transfer) {
pipe_buffer_unmap(&svga->pipe, ib_transfer);
draw_set_indexes(draw, NULL, 0);
}
if (svga->curr.cb[PIPE_SHADER_VERTEX]) {
pipe_buffer_unmap(&svga->pipe, cb_transfer);
}
/* Now safe to remove the need_swtnl flag in any update_state call */
svga->state.sw.in_swtnl_draw = FALSE;
svga->dirty |= SVGA_NEW_NEED_PIPELINE | SVGA_NEW_NEED_SWVFETCH;
return ret;
}
/**
* Draw vertex arrays, with optional indexing, optional instancing.
* All the other drawing functions are implemented in terms of this function.
* Basically, map the vertex buffers (and drawing surfaces), then hand off
* the drawing to the 'draw' module.
*/
static void
llvmpipe_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
{
struct llvmpipe_context *lp = llvmpipe_context(pipe);
struct draw_context *draw = lp->draw;
const void *mapped_indices = NULL;
unsigned i;
if (!llvmpipe_check_render_cond(lp))
return;
if (info->indirect) {
util_draw_indirect(pipe, info);
return;
}
if (lp->dirty)
llvmpipe_update_derived( lp );
/*
* Map vertex buffers
*/
for (i = 0; i < lp->num_vertex_buffers; i++) {
const void *buf = lp->vertex_buffer[i].is_user_buffer ?
lp->vertex_buffer[i].buffer.user : NULL;
size_t size = ~0;
if (!buf) {
if (!lp->vertex_buffer[i].buffer.resource) {
continue;
}
buf = llvmpipe_resource_data(lp->vertex_buffer[i].buffer.resource);
size = lp->vertex_buffer[i].buffer.resource->width0;
}
draw_set_mapped_vertex_buffer(draw, i, buf, size);
}
/* Map index buffer, if present */
if (info->index_size) {
unsigned available_space = ~0;
mapped_indices = info->has_user_indices ? info->index.user : NULL;
if (!mapped_indices) {
mapped_indices = llvmpipe_resource_data(info->index.resource);
available_space = info->index.resource->width0;
}
draw_set_indexes(draw,
(ubyte *) mapped_indices,
info->index_size, available_space);
}
for (i = 0; i < lp->num_so_targets; i++) {
void *buf = 0;
if (lp->so_targets[i]) {
buf = llvmpipe_resource(lp->so_targets[i]->target.buffer)->data;
lp->so_targets[i]->mapping = buf;
}
}
draw_set_mapped_so_targets(draw, lp->num_so_targets,
lp->so_targets);
llvmpipe_prepare_vertex_sampling(lp,
lp->num_sampler_views[PIPE_SHADER_VERTEX],
lp->sampler_views[PIPE_SHADER_VERTEX]);
llvmpipe_prepare_geometry_sampling(lp,
lp->num_sampler_views[PIPE_SHADER_GEOMETRY],
lp->sampler_views[PIPE_SHADER_GEOMETRY]);
if (lp->gs && lp->gs->no_tokens) {
/* we have an empty geometry shader with stream output, so
attach the stream output info to the current vertex shader */
if (lp->vs) {
draw_vs_attach_so(lp->vs, &lp->gs->stream_output);
}
}
draw_collect_pipeline_statistics(draw,
lp->active_statistics_queries > 0);
/* draw! */
draw_vbo(draw, info);
/*
* unmap vertex/index buffers
*/
for (i = 0; i < lp->num_vertex_buffers; i++) {
draw_set_mapped_vertex_buffer(draw, i, NULL, 0);
}
if (mapped_indices) {
draw_set_indexes(draw, NULL, 0, 0);
}
draw_set_mapped_so_targets(draw, 0, NULL);
if (lp->gs && lp->gs->no_tokens) {
/* we have attached stream output to the vs for rendering,
now lets reset it */
if (lp->vs) {
draw_vs_reset_so(lp->vs);
}
}
/*
* TODO: Flush only when a user vertex/index buffer is present
* (or even better, modify draw module to do this
* internally when this condition is seen?)
*/
draw_flush(draw);
}
/**
* Called by VBO to draw arrays when in selection or feedback mode and
* to implement glRasterPos.
* This is very much like the normal draw_vbo() function above.
* Look at code refactoring some day.
* Might move this into the failover module some day.
*/
void
st_feedback_draw_vbo(GLcontext *ctx,
const struct gl_client_array **arrays,
const struct _mesa_prim *prims,
GLuint nr_prims,
const struct _mesa_index_buffer *ib,
GLboolean index_bounds_valid,
GLuint min_index,
GLuint max_index)
{
struct st_context *st = ctx->st;
struct pipe_context *pipe = st->pipe;
struct draw_context *draw = st->draw;
const struct st_vertex_program *vp;
const struct pipe_shader_state *vs;
struct pipe_buffer *index_buffer_handle = 0;
struct pipe_vertex_buffer vbuffers[PIPE_MAX_SHADER_INPUTS];
struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
GLuint attr, i;
ubyte *mapped_constants;
assert(draw);
st_validate_state(ctx->st);
if (!index_bounds_valid)
vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index);
/* must get these after state validation! */
vp = ctx->st->vp;
vs = &st->vp->state;
if (!st->vp->draw_shader) {
st->vp->draw_shader = draw_create_vertex_shader(draw, vs);
}
/*
* Set up the draw module's state.
*
* We'd like to do this less frequently, but the normal state-update
* code sends state updates to the pipe, not to our private draw module.
*/
assert(draw);
draw_set_viewport_state(draw, &st->state.viewport);
draw_set_clip_state(draw, &st->state.clip);
draw_set_rasterizer_state(draw, &st->state.rasterizer);
draw_bind_vertex_shader(draw, st->vp->draw_shader);
set_feedback_vertex_format(ctx);
/* loop over TGSI shader inputs to determine vertex buffer
* and attribute info
*/
for (attr = 0; attr < vp->num_inputs; attr++) {
const GLuint mesaAttr = vp->index_to_input[attr];
struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
void *map;
if (bufobj && bufobj->Name) {
/* Attribute data is in a VBO.
* Recall that for VBOs, the gl_client_array->Ptr field is
* really an offset from the start of the VBO, not a pointer.
*/
struct st_buffer_object *stobj = st_buffer_object(bufobj);
assert(stobj->buffer);
vbuffers[attr].buffer = NULL;
pipe_buffer_reference(&vbuffers[attr].buffer, stobj->buffer);
vbuffers[attr].buffer_offset = pointer_to_offset(arrays[0]->Ptr);
velements[attr].src_offset = arrays[mesaAttr]->Ptr - arrays[0]->Ptr;
}
else {
/* attribute data is in user-space memory, not a VBO */
uint bytes = (arrays[mesaAttr]->Size
* _mesa_sizeof_type(arrays[mesaAttr]->Type)
* (max_index + 1));
/* wrap user data */
vbuffers[attr].buffer
= pipe_user_buffer_create(pipe->screen, (void *) arrays[mesaAttr]->Ptr,
bytes);
vbuffers[attr].buffer_offset = 0;
velements[attr].src_offset = 0;
}
/* common-case setup */
vbuffers[attr].stride = arrays[mesaAttr]->StrideB; /* in bytes */
vbuffers[attr].max_index = max_index;
velements[attr].vertex_buffer_index = attr;
velements[attr].nr_components = arrays[mesaAttr]->Size;
velements[attr].src_format =
st_pipe_vertex_format(arrays[mesaAttr]->Type,
arrays[mesaAttr]->Size,
arrays[mesaAttr]->Format,
arrays[mesaAttr]->Normalized);
assert(velements[attr].src_format);
/* tell draw about this attribute */
#if 0
draw_set_vertex_buffer(draw, attr, &vbuffer[attr]);
#endif
/* map the attrib buffer */
map = pipe_buffer_map(pipe->screen, vbuffers[attr].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_vertex_buffer(draw, attr, map);
}
draw_set_vertex_buffers(draw, vp->num_inputs, vbuffers);
draw_set_vertex_elements(draw, vp->num_inputs, velements);
if (ib) {
struct gl_buffer_object *bufobj = ib->obj;
unsigned indexSize;
void *map;
switch (ib->type) {
case GL_UNSIGNED_INT:
indexSize = 4;
break;
case GL_UNSIGNED_SHORT:
indexSize = 2;
break;
default:
assert(0);
return;
}
if (bufobj && bufobj->Name) {
struct st_buffer_object *stobj = st_buffer_object(bufobj);
index_buffer_handle = stobj->buffer;
map = pipe_buffer_map(pipe->screen, index_buffer_handle,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_element_buffer(draw, indexSize, map);
}
else {
draw_set_mapped_element_buffer(draw, indexSize, (void *) ib->ptr);
}
}
else {
/* no index/element buffer */
draw_set_mapped_element_buffer(draw, 0, NULL);
}
/* map constant buffers */
mapped_constants = pipe_buffer_map(pipe->screen,
st->state.constants[PIPE_SHADER_VERTEX].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_constant_buffer(st->draw, mapped_constants,
st->state.constants[PIPE_SHADER_VERTEX].buffer->size);
/* draw here */
for (i = 0; i < nr_prims; i++) {
draw_arrays(draw, prims[i].mode, prims[i].start, prims[i].count);
}
/* unmap constant buffers */
pipe_buffer_unmap(pipe->screen, st->state.constants[PIPE_SHADER_VERTEX].buffer);
/*
* unmap vertex/index buffers
*/
for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
if (draw->pt.vertex_buffer[i].buffer) {
pipe_buffer_unmap(pipe->screen, draw->pt.vertex_buffer[i].buffer);
pipe_buffer_reference(&draw->pt.vertex_buffer[i].buffer, NULL);
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
}
if (index_buffer_handle) {
pipe_buffer_unmap(pipe->screen, index_buffer_handle);
draw_set_mapped_element_buffer(draw, 0, NULL);
}
}
/**
* Called by VBO to draw arrays when in selection or feedback mode and
* to implement glRasterPos.
* This is very much like the normal draw_vbo() function above.
* Look at code refactoring some day.
*/
void
st_feedback_draw_vbo(struct gl_context *ctx,
const struct gl_client_array **arrays,
const struct _mesa_prim *prims,
GLuint nr_prims,
const struct _mesa_index_buffer *ib,
GLboolean index_bounds_valid,
GLuint min_index,
GLuint max_index,
struct gl_transform_feedback_object *tfb_vertcount)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct draw_context *draw = st->draw;
const struct st_vertex_program *vp;
const struct pipe_shader_state *vs;
struct pipe_vertex_buffer vbuffers[PIPE_MAX_SHADER_INPUTS];
struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
struct pipe_index_buffer ibuffer;
struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
struct pipe_transfer *ib_transfer = NULL;
GLuint attr, i;
const GLubyte *low_addr = NULL;
const void *mapped_indices = NULL;
assert(draw);
st_validate_state(st);
if (!index_bounds_valid)
vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index, nr_prims);
/* must get these after state validation! */
vp = st->vp;
vs = &st->vp_variant->tgsi;
if (!st->vp_variant->draw_shader) {
st->vp_variant->draw_shader = draw_create_vertex_shader(draw, vs);
}
/*
* Set up the draw module's state.
*
* We'd like to do this less frequently, but the normal state-update
* code sends state updates to the pipe, not to our private draw module.
*/
assert(draw);
draw_set_viewport_state(draw, &st->state.viewport);
draw_set_clip_state(draw, &st->state.clip);
draw_set_rasterizer_state(draw, &st->state.rasterizer, NULL);
draw_bind_vertex_shader(draw, st->vp_variant->draw_shader);
set_feedback_vertex_format(ctx);
/* Find the lowest address of the arrays we're drawing */
if (vp->num_inputs) {
low_addr = arrays[vp->index_to_input[0]]->Ptr;
for (attr = 1; attr < vp->num_inputs; attr++) {
const GLubyte *start = arrays[vp->index_to_input[attr]]->Ptr;
low_addr = MIN2(low_addr, start);
}
}
/* loop over TGSI shader inputs to determine vertex buffer
* and attribute info
*/
for (attr = 0; attr < vp->num_inputs; attr++) {
const GLuint mesaAttr = vp->index_to_input[attr];
struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
void *map;
if (bufobj && bufobj->Name) {
/* Attribute data is in a VBO.
* Recall that for VBOs, the gl_client_array->Ptr field is
* really an offset from the start of the VBO, not a pointer.
*/
struct st_buffer_object *stobj = st_buffer_object(bufobj);
assert(stobj->buffer);
vbuffers[attr].buffer = NULL;
pipe_resource_reference(&vbuffers[attr].buffer, stobj->buffer);
vbuffers[attr].buffer_offset = pointer_to_offset(low_addr);
velements[attr].src_offset = arrays[mesaAttr]->Ptr - low_addr;
}
else {
/* attribute data is in user-space memory, not a VBO */
uint bytes = (arrays[mesaAttr]->Size
* _mesa_sizeof_type(arrays[mesaAttr]->Type)
* (max_index + 1));
/* wrap user data */
vbuffers[attr].buffer
= pipe_user_buffer_create(pipe->screen, (void *) arrays[mesaAttr]->Ptr,
bytes,
PIPE_BIND_VERTEX_BUFFER);
vbuffers[attr].buffer_offset = 0;
velements[attr].src_offset = 0;
}
/* common-case setup */
vbuffers[attr].stride = arrays[mesaAttr]->StrideB; /* in bytes */
velements[attr].instance_divisor = 0;
velements[attr].vertex_buffer_index = attr;
velements[attr].src_format =
st_pipe_vertex_format(arrays[mesaAttr]->Type,
arrays[mesaAttr]->Size,
arrays[mesaAttr]->Format,
arrays[mesaAttr]->Normalized,
arrays[mesaAttr]->Integer);
assert(velements[attr].src_format);
/* tell draw about this attribute */
#if 0
draw_set_vertex_buffer(draw, attr, &vbuffer[attr]);
#endif
/* map the attrib buffer */
map = pipe_buffer_map(pipe, vbuffers[attr].buffer,
PIPE_TRANSFER_READ,
&vb_transfer[attr]);
draw_set_mapped_vertex_buffer(draw, attr, map);
}
draw_set_vertex_buffers(draw, vp->num_inputs, vbuffers);
draw_set_vertex_elements(draw, vp->num_inputs, velements);
memset(&ibuffer, 0, sizeof(ibuffer));
if (ib) {
struct gl_buffer_object *bufobj = ib->obj;
ibuffer.index_size = vbo_sizeof_ib_type(ib->type);
if (ibuffer.index_size == 0)
goto out_unref_vertex;
if (bufobj && bufobj->Name) {
struct st_buffer_object *stobj = st_buffer_object(bufobj);
pipe_resource_reference(&ibuffer.buffer, stobj->buffer);
ibuffer.offset = pointer_to_offset(ib->ptr);
mapped_indices = pipe_buffer_map(pipe, stobj->buffer,
PIPE_TRANSFER_READ, &ib_transfer);
}
else {
/* skip setting ibuffer.buffer as the draw module does not use it */
mapped_indices = ib->ptr;
}
draw_set_index_buffer(draw, &ibuffer);
draw_set_mapped_index_buffer(draw, mapped_indices);
}
/* set the constant buffer */
draw_set_mapped_constant_buffer(st->draw, PIPE_SHADER_VERTEX, 0,
st->state.constants[PIPE_SHADER_VERTEX].ptr,
st->state.constants[PIPE_SHADER_VERTEX].size);
/* draw here */
for (i = 0; i < nr_prims; i++) {
draw_arrays(draw, prims[i].mode, prims[i].start, prims[i].count);
}
/*
* unmap vertex/index buffers
*/
if (ib) {
draw_set_mapped_index_buffer(draw, NULL);
draw_set_index_buffer(draw, NULL);
if (ib_transfer)
pipe_buffer_unmap(pipe, ib_transfer);
pipe_resource_reference(&ibuffer.buffer, NULL);
}
out_unref_vertex:
for (attr = 0; attr < vp->num_inputs; attr++) {
pipe_buffer_unmap(pipe, vb_transfer[attr]);
draw_set_mapped_vertex_buffer(draw, attr, NULL);
pipe_resource_reference(&vbuffers[attr].buffer, NULL);
}
draw_set_vertex_buffers(draw, 0, NULL);
}
void
nv30_render_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
{
struct nv30_context *nv30 = nv30_context(pipe);
struct draw_context *draw = nv30->draw;
struct pipe_transfer *transfer[PIPE_MAX_ATTRIBS] = {NULL};
struct pipe_transfer *transferi = NULL;
int i;
nv30_render_validate(nv30);
if (nv30->draw_dirty & NV30_NEW_VIEWPORT)
draw_set_viewport_states(draw, 0, 1, &nv30->viewport);
if (nv30->draw_dirty & NV30_NEW_RASTERIZER)
draw_set_rasterizer_state(draw, &nv30->rast->pipe, NULL);
if (nv30->draw_dirty & NV30_NEW_CLIP)
draw_set_clip_state(draw, &nv30->clip);
if (nv30->draw_dirty & NV30_NEW_ARRAYS) {
draw_set_vertex_buffers(draw, 0, nv30->num_vtxbufs, nv30->vtxbuf);
draw_set_vertex_elements(draw, nv30->vertex->num_elements, nv30->vertex->pipe);
}
if (nv30->draw_dirty & NV30_NEW_FRAGPROG) {
struct nv30_fragprog *fp = nv30->fragprog.program;
if (!fp->draw)
fp->draw = draw_create_fragment_shader(draw, &fp->pipe);
draw_bind_fragment_shader(draw, fp->draw);
}
if (nv30->draw_dirty & NV30_NEW_VERTPROG) {
struct nv30_vertprog *vp = nv30->vertprog.program;
if (!vp->draw)
vp->draw = draw_create_vertex_shader(draw, &vp->pipe);
draw_bind_vertex_shader(draw, vp->draw);
}
if (nv30->draw_dirty & NV30_NEW_VERTCONST) {
if (nv30->vertprog.constbuf) {
void *map = nv04_resource(nv30->vertprog.constbuf)->data;
draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0,
map, nv30->vertprog.constbuf_nr * 16);
} else {
draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0, NULL, 0);
}
}
for (i = 0; i < nv30->num_vtxbufs; i++) {
const void *map = nv30->vtxbuf[i].user_buffer;
if (!map) {
if (nv30->vtxbuf[i].buffer)
map = pipe_buffer_map(pipe, nv30->vtxbuf[i].buffer,
PIPE_TRANSFER_UNSYNCHRONIZED |
PIPE_TRANSFER_READ, &transfer[i]);
}
draw_set_mapped_vertex_buffer(draw, i, map, ~0);
}
if (info->indexed) {
const void *map = nv30->idxbuf.user_buffer;
if (!map)
map = pipe_buffer_map(pipe, nv30->idxbuf.buffer,
PIPE_TRANSFER_UNSYNCHRONIZED |
PIPE_TRANSFER_READ, &transferi);
draw_set_indexes(draw,
(ubyte *) map + nv30->idxbuf.offset,
nv30->idxbuf.index_size, ~0);
} else {
draw_set_indexes(draw, NULL, 0, 0);
}
draw_vbo(draw, info);
draw_flush(draw);
if (info->indexed && transferi)
pipe_buffer_unmap(pipe, transferi);
for (i = 0; i < nv30->num_vtxbufs; i++)
if (transfer[i])
pipe_buffer_unmap(pipe, transfer[i]);
nv30->draw_dirty = 0;
nv30_state_release(nv30);
}
static boolean
i915_draw_range_elements(struct pipe_context *pipe,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned min_index,
unsigned max_index,
unsigned prim, unsigned start, unsigned count)
{
struct i915_context *i915 = i915_context(pipe);
struct draw_context *draw = i915->draw;
unsigned i;
if (i915->dirty)
i915_update_derived(i915);
/*
* Map vertex buffers
*/
for (i = 0; i < i915->num_vertex_buffers; i++) {
void *buf = pipe_buffer_map(pipe->screen, i915->vertex_buffer[i].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_vertex_buffer(draw, i, buf);
}
/*
* Map index buffer, if present
*/
if (indexBuffer) {
void *mapped_indexes = pipe_buffer_map(pipe->screen, indexBuffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_element_buffer_range(draw, indexSize,
min_index,
max_index,
mapped_indexes);
} else {
draw_set_mapped_element_buffer(draw, 0, NULL);
}
draw_set_mapped_constant_buffer(draw,
i915->current.constants[PIPE_SHADER_VERTEX],
(i915->current.num_user_constants[PIPE_SHADER_VERTEX] *
4 * sizeof(float)));
/*
* Do the drawing
*/
draw_arrays(i915->draw, prim, start, count);
/*
* unmap vertex/index buffers
*/
for (i = 0; i < i915->num_vertex_buffers; i++) {
pipe_buffer_unmap(pipe->screen, i915->vertex_buffer[i].buffer);
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
if (indexBuffer) {
pipe_buffer_unmap(pipe->screen, indexBuffer);
draw_set_mapped_element_buffer_range(draw, 0, start, start + count - 1, NULL);
}
return TRUE;
}
static void
i915_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
{
struct i915_context *i915 = i915_context(pipe);
struct draw_context *draw = i915->draw;
const void *mapped_indices = NULL;
unsigned i;
/*
* Ack vs contants here, helps ipers a lot.
*/
i915->dirty &= ~I915_NEW_VS_CONSTANTS;
if (i915->dirty)
i915_update_derived(i915);
/*
* Map vertex buffers
*/
for (i = 0; i < i915->nr_vertex_buffers; i++) {
const void *buf = i915->vertex_buffers[i].user_buffer;
if (!buf)
buf = i915_buffer(i915->vertex_buffers[i].buffer)->data;
draw_set_mapped_vertex_buffer(draw, i, buf, ~0);
}
/*
* Map index buffer, if present
*/
if (info->indexed) {
mapped_indices = i915->index_buffer.user_buffer;
if (!mapped_indices)
mapped_indices = i915_buffer(i915->index_buffer.buffer)->data;
draw_set_indexes(draw,
(ubyte *) mapped_indices + i915->index_buffer.offset,
i915->index_buffer.index_size, ~0);
}
if (i915->constants[PIPE_SHADER_VERTEX])
draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0,
i915_buffer(i915->constants[PIPE_SHADER_VERTEX])->data,
(i915->current.num_user_constants[PIPE_SHADER_VERTEX] *
4 * sizeof(float)));
else
draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0, NULL, 0);
if (i915->num_vertex_sampler_views > 0)
i915_prepare_vertex_sampling(i915);
/*
* Do the drawing
*/
draw_vbo(i915->draw, info);
/*
* unmap vertex/index buffers
*/
for (i = 0; i < i915->nr_vertex_buffers; i++) {
draw_set_mapped_vertex_buffer(i915->draw, i, NULL, 0);
}
if (mapped_indices)
draw_set_indexes(draw, NULL, 0, 0);
if (i915->num_vertex_sampler_views > 0)
i915_cleanup_vertex_sampling(i915);
/*
* Instead of flushing on every state change, we flush once here
* when we fire the vbo.
*/
draw_flush(i915->draw);
}
/**
* Draw vertex arrays, with optional indexing.
* Basically, map the vertex buffers (and drawing surfaces), then hand off
* the drawing to the 'draw' module.
*
* XXX should the element buffer be specified/bound with a separate function?
*/
static boolean
cell_draw_range_elements(struct pipe_context *pipe,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned min_index,
unsigned max_index,
unsigned mode, unsigned start, unsigned count)
{
struct cell_context *sp = cell_context(pipe);
struct draw_context *draw = sp->draw;
unsigned i;
if (sp->dirty)
cell_update_derived( sp );
#if 0
cell_map_surfaces(sp);
#endif
cell_map_constant_buffers(sp);
/*
* Map vertex buffers
*/
for (i = 0; i < sp->num_vertex_buffers; i++) {
void *buf = pipe_buffer_map(pipe->screen,
sp->vertex_buffer[i].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
cell_flush_buffer_range(sp, buf, sp->vertex_buffer[i].buffer->size);
draw_set_mapped_vertex_buffer(draw, i, buf);
}
/* Map index buffer, if present */
if (indexBuffer) {
void *mapped_indexes = pipe_buffer_map(pipe->screen,
indexBuffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes);
}
else {
/* no index/element buffer */
draw_set_mapped_element_buffer(draw, 0, NULL);
}
/* draw! */
draw_arrays(draw, mode, start, count);
/*
* unmap vertex/index buffers - will cause draw module to flush
*/
for (i = 0; i < sp->num_vertex_buffers; i++) {
draw_set_mapped_vertex_buffer(draw, i, NULL);
pipe_buffer_unmap(pipe->screen, sp->vertex_buffer[i].buffer);
}
if (indexBuffer) {
draw_set_mapped_element_buffer(draw, 0, NULL);
pipe_buffer_unmap(pipe->screen, indexBuffer);
}
/* Note: leave drawing surfaces mapped */
cell_unmap_constant_buffers(sp);
return TRUE;
}
enum pipe_error
svga_swtnl_draw_range_elements(struct svga_context *svga,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned min_index,
unsigned max_index,
unsigned prim, unsigned start, unsigned count)
{
struct draw_context *draw = svga->swtnl.draw;
unsigned i;
const void *map;
enum pipe_error ret;
assert(!svga->dirty);
assert(svga->state.sw.need_swtnl);
assert(draw);
ret = svga_update_state(svga, SVGA_STATE_SWTNL_DRAW);
if (ret) {
svga_context_flush(svga, NULL);
ret = svga_update_state(svga, SVGA_STATE_SWTNL_DRAW);
svga->swtnl.new_vbuf = TRUE;
assert(ret == PIPE_OK);
}
/*
* Map vertex buffers
*/
for (i = 0; i < svga->curr.num_vertex_buffers; i++) {
map = pipe_buffer_map(svga->pipe.screen,
svga->curr.vb[i].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_vertex_buffer(draw, i, map);
}
/* Map index buffer, if present */
if (indexBuffer) {
map = pipe_buffer_map(svga->pipe.screen, indexBuffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_element_buffer_range(draw,
indexSize,
min_index,
max_index,
map);
}
if (svga->curr.cb[PIPE_SHADER_VERTEX]) {
map = pipe_buffer_map(svga->pipe.screen,
svga->curr.cb[PIPE_SHADER_VERTEX],
PIPE_BUFFER_USAGE_CPU_READ);
assert(map);
draw_set_mapped_constant_buffer(
draw, PIPE_SHADER_VERTEX, 0,
map,
svga->curr.cb[PIPE_SHADER_VERTEX]->size);
}
draw_arrays(svga->swtnl.draw, prim, start, count);
draw_flush(svga->swtnl.draw);
/* Ensure the draw module didn't touch this */
assert(i == svga->curr.num_vertex_buffers);
/*
* unmap vertex/index buffers
*/
for (i = 0; i < svga->curr.num_vertex_buffers; i++) {
pipe_buffer_unmap(svga->pipe.screen, svga->curr.vb[i].buffer);
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
if (indexBuffer) {
pipe_buffer_unmap(svga->pipe.screen, indexBuffer);
draw_set_mapped_element_buffer(draw, 0, NULL);
}
if (svga->curr.cb[PIPE_SHADER_VERTEX]) {
pipe_buffer_unmap(svga->pipe.screen,
svga->curr.cb[PIPE_SHADER_VERTEX]);
}
return ret;
}
/* SW TCL elements, using Draw. */
static void r300_swtcl_draw_vbo(struct pipe_context* pipe,
const struct pipe_draw_info *info)
{
struct r300_context* r300 = r300_context(pipe);
struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
struct pipe_transfer *ib_transfer = NULL;
unsigned count = info->count;
int i;
void *indices = NULL;
boolean indexed = info->indexed && r300->index_buffer.buffer;
if (r300->skip_rendering) {
return;
}
if (!u_trim_pipe_prim(info->mode, &count)) {
return;
}
r300_update_derived_state(r300);
r300_reserve_cs_dwords(r300,
PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL |
(indexed ? PREP_INDEXED : 0),
indexed ? 256 : 6);
for (i = 0; i < r300->vertex_buffer_count; i++) {
if (r300->vertex_buffer[i].buffer) {
void *buf = pipe_buffer_map(pipe,
r300->vertex_buffer[i].buffer,
PIPE_TRANSFER_READ,
&vb_transfer[i]);
draw_set_mapped_vertex_buffer(r300->draw, i, buf);
}
}
if (indexed) {
indices = pipe_buffer_map(pipe, r300->index_buffer.buffer,
PIPE_TRANSFER_READ, &ib_transfer);
}
draw_set_mapped_index_buffer(r300->draw, indices);
r300->draw_vbo_locked = TRUE;
r300->draw_first_emitted = FALSE;
draw_vbo(r300->draw, info);
draw_flush(r300->draw);
r300->draw_vbo_locked = FALSE;
for (i = 0; i < r300->vertex_buffer_count; i++) {
if (r300->vertex_buffer[i].buffer) {
pipe_buffer_unmap(pipe, r300->vertex_buffer[i].buffer,
vb_transfer[i]);
draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
}
}
if (indexed) {
pipe_buffer_unmap(pipe, r300->index_buffer.buffer, ib_transfer);
draw_set_mapped_index_buffer(r300->draw, NULL);
}
}
/**
* Draw vertex arrays, with optional indexing.
* Basically, map the vertex buffers (and drawing surfaces), then hand off
* the drawing to the 'draw' module.
*/
boolean
llvmpipe_draw_range_elements(struct pipe_context *pipe,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned min_index,
unsigned max_index,
unsigned mode, unsigned start, unsigned count)
{
struct llvmpipe_context *lp = llvmpipe_context(pipe);
struct draw_context *draw = lp->draw;
unsigned i;
lp->reduced_api_prim = u_reduced_prim(mode);
if (lp->dirty)
llvmpipe_update_derived( lp );
llvmpipe_map_transfers(lp);
/*
* Map vertex buffers
*/
for (i = 0; i < lp->num_vertex_buffers; i++) {
void *buf = llvmpipe_buffer(lp->vertex_buffer[i].buffer)->data;
draw_set_mapped_vertex_buffer(draw, i, buf);
}
/* Map index buffer, if present */
if (indexBuffer) {
void *mapped_indexes = llvmpipe_buffer(indexBuffer)->data;
draw_set_mapped_element_buffer_range(draw, indexSize,
min_index,
max_index,
mapped_indexes);
}
else {
/* no index/element buffer */
draw_set_mapped_element_buffer_range(draw, 0, start,
start + count - 1, NULL);
}
/* draw! */
draw_arrays(draw, mode, start, count);
/*
* unmap vertex/index buffers
*/
for (i = 0; i < lp->num_vertex_buffers; i++) {
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
if (indexBuffer) {
draw_set_mapped_element_buffer(draw, 0, NULL);
}
/*
* TODO: Flush only when a user vertex/index buffer is present
* (or even better, modify draw module to do this
* internally when this condition is seen?)
*/
draw_flush(draw);
/* Note: leave drawing surfaces mapped */
lp->dirty_render_cache = TRUE;
return TRUE;
}
