void
softpipe_set_index_buffer(struct pipe_context *pipe,
const struct pipe_index_buffer *ib)
{
struct softpipe_context *softpipe = softpipe_context(pipe);
if (ib)
memcpy(&softpipe->index_buffer, ib, sizeof(softpipe->index_buffer));
else
memset(&softpipe->index_buffer, 0, sizeof(softpipe->index_buffer));
draw_set_index_buffer(softpipe->draw, ib);
}
static void i915_set_index_buffer(struct pipe_context *pipe,
const struct pipe_index_buffer *ib)
{
struct i915_context *i915 = i915_context(pipe);
if (ib)
memcpy(&i915->index_buffer, ib, sizeof(i915->index_buffer));
else
memset(&i915->index_buffer, 0, sizeof(i915->index_buffer));
/* pass-through to draw module */
draw_set_index_buffer(i915->draw, ib);
}
static void
llvmpipe_set_index_buffer(struct pipe_context *pipe,
const struct pipe_index_buffer *ib)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
if (ib)
memcpy(&llvmpipe->index_buffer, ib, sizeof(llvmpipe->index_buffer));
else
memset(&llvmpipe->index_buffer, 0, sizeof(llvmpipe->index_buffer));
draw_set_index_buffer(llvmpipe->draw, ib);
}
boolean
nvfx_state_validate_swtnl(struct nvfx_context *nvfx)
{
struct draw_context *draw = nvfx->draw;
/* Setup for swtnl */
if (nvfx->render_mode == HW) {
static boolean warned = FALSE;
if(!warned) {
NOUVEAU_ERR("hw->swtnl 0x%08x\n", nvfx->fallback_swtnl);
warned = TRUE;
}
nvfx->pipe.flush(&nvfx->pipe, NULL);
nvfx->dirty |= (NVFX_NEW_VIEWPORT |
NVFX_NEW_VERTPROG |
NVFX_NEW_ARRAYS);
nvfx->render_mode = SWTNL;
}
if (nvfx->draw_dirty & NVFX_NEW_VERTPROG) {
if(!nvfx->vertprog->draw_vs)
nvfx->vertprog->draw_vs = draw_create_vertex_shader(draw, &nvfx->vertprog->pipe);
draw_bind_vertex_shader(draw, nvfx->vertprog->draw_vs);
}
if (nvfx->draw_dirty & NVFX_NEW_RAST)
draw_set_rasterizer_state(draw, &nvfx->rasterizer->pipe,
nvfx->rasterizer);
if (nvfx->draw_dirty & NVFX_NEW_UCP)
draw_set_clip_state(draw, &nvfx->clip);
if (nvfx->draw_dirty & NVFX_NEW_VIEWPORT)
draw_set_viewport_state(draw, &nvfx->viewport);
if (nvfx->draw_dirty & NVFX_NEW_ARRAYS) {
draw_set_vertex_buffers(draw, nvfx->vtxbuf_nr, nvfx->vtxbuf);
draw_set_vertex_elements(draw, nvfx->vtxelt->num_elements, nvfx->vtxelt->pipe);
}
if (nvfx->draw_dirty & NVFX_NEW_INDEX)
draw_set_index_buffer(draw, &nvfx->idxbuf);
nvfx_state_validate_common(nvfx);
nvfx->draw_dirty = 0;
return TRUE;
}
/**
* 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);
}
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++) {
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);
}
/* TODO move this to update_swtnl_draw */
draw_set_index_buffer(draw, &svga->curr.ib);
/* 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_mapped_index_buffer(draw, map);
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++) {
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_mapped_index_buffer(draw, NULL);
}
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;
}
