/**************************************************************************
*
* Copyright 2007 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "main/arrayobj.h"
#include "main/image.h"
#include "main/macros.h"
#include "main/varray.h"
#include "vbo/vbo.h"
#include "st_context.h"
#include "st_atom.h"
#include "st_cb_bitmap.h"
#include "st_cb_bufferobjects.h"
#include "st_draw.h"
#include "st_program.h"
#include "st_util.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
#include "util/u_inlines.h"
#include "util/u_draw.h"
#include "util/format/u_format.h"
#include "draw/draw_private.h"
#include "draw/draw_context.h"
/**
* Set the (private) draw module's post-transformed vertex format when in
* GL_SELECT or GL_FEEDBACK mode or for glRasterPos.
*/
static void
set_feedback_vertex_format(struct gl_context *ctx)
{
#if 0
struct st_context *st = st_context(ctx);
struct vertex_info vinfo;
GLuint i;
memset(&vinfo, 0, sizeof(vinfo));
if (ctx->RenderMode == GL_SELECT) {
assert(ctx->RenderMode == GL_SELECT);
vinfo.num_attribs = 1;
vinfo.format[0] = FORMAT_4F;
vinfo.interp_mode[0] = INTERP_LINEAR;
}
else {
/* GL_FEEDBACK, or glRasterPos */
/* emit all attribs (pos, color, texcoord) as GLfloat[4] */
vinfo.num_attribs = st->state.vs->cso->state.num_outputs;
for (i = 0; i < vinfo.num_attribs; i++) {
vinfo.format[i] = FORMAT_4F;
vinfo.interp_mode[i] = INTERP_LINEAR;
}
}
draw_set_vertex_info(st->draw, &vinfo);
#endif
}
/**
* Called by VBO to draw arrays when in selection or feedback mode and
* to implement glRasterPos.
* This function mirrors the normal st_draw_vbo().
* Look at code refactoring some day.
*/
void
st_feedback_draw_vbo(struct gl_context *ctx,
const struct _mesa_prim *prims,
unsigned nr_prims,
const struct _mesa_index_buffer *ib,
bool index_bounds_valid,
bool primitive_restart,
unsigned restart_index,
unsigned min_index,
unsigned max_index,
unsigned num_instances,
unsigned base_instance)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct draw_context *draw = st_get_draw_context(st);
const struct st_vertex_program *vp;
struct st_common_variant *vp_variant;
struct pipe_vertex_buffer vbuffers[PIPE_MAX_SHADER_INPUTS];
unsigned num_vbuffers = 0;
struct cso_velems_state velements;
struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {NULL};
struct pipe_transfer *ib_transfer = NULL;
GLuint i;
const void *mapped_indices = NULL;
struct pipe_draw_info info;
if (!draw)
return;
/* Initialize pipe_draw_info. */
info.primitive_restart = false;
info.take_index_buffer_ownership = false;
info.restart_index = 0;
info.view_mask = 0;
st_flush_bitmap_cache(st);
st_invalidate_readpix_cache(st);
st_validate_state(st, ST_PIPELINE_RENDER);
if (ib && !index_bounds_valid) {
vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index, nr_prims,
primitive_restart, restart_index);
index_bounds_valid = true;
}
/* must get these after state validation! */
struct st_common_variant_key key;
/* We have to use memcpy to make sure that all bits are copied. */
memcpy(&key, &st->vp_variant->key, sizeof(key));
key.is_draw_shader = true;
vp = (struct st_vertex_program *)st->vp;
vp_variant = st_get_common_variant(st, st->vp, &key);
/*
* 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_states(draw, 0, 1, &st->state.viewport[0]);
draw_set_clip_state(draw, &st->state.clip);
draw_set_rasterizer_state(draw, &st->state.rasterizer, NULL);
draw_bind_vertex_shader(draw, vp_variant->base.driver_shader);
set_feedback_vertex_format(ctx);
/* Must setup these after state validation! */
/* Setup arrays */
bool uses_user_vertex_buffers;
st_setup_arrays(st, vp, vp_variant, &velements, vbuffers, &num_vbuffers,
&uses_user_vertex_buffers);
/* Setup current values as userspace arrays */
st_setup_current_user(st, vp, vp_variant, &velements, vbuffers, &num_vbuffers);
/* Map all buffers and tell draw about their mapping */
for (unsigned buf = 0; buf < num_vbuffers; ++buf) {
struct pipe_vertex_buffer *vbuffer = &vbuffers[buf];
if (vbuffer->is_user_buffer) {
draw_set_mapped_vertex_buffer(draw, buf, vbuffer->buffer.user, ~0);
} else {
void *map = pipe_buffer_map(pipe, vbuffer->buffer.resource,
PIPE_MAP_READ, &vb_transfer[buf]);
draw_set_mapped_vertex_buffer(draw, buf, map,
vbuffer->buffer.resource->width0);
}
}
draw_set_vertex_buffers(draw, 0, num_vbuffers, 0, vbuffers);
draw_set_vertex_elements(draw, vp->num_inputs, velements.velems);
unsigned start = 0;
if (ib) {
struct gl_buffer_object *bufobj = ib->obj;
unsigned index_size = 1 << ib->index_size_shift;
if (index_size == 0)
goto out_unref_vertex;
if (bufobj && bufobj->Name) {
struct st_buffer_object *stobj = st_buffer_object(bufobj);
start = pointer_to_offset(ib->ptr) >> ib->index_size_shift;
mapped_indices = pipe_buffer_map(pipe, stobj->buffer,
PIPE_MAP_READ, &ib_transfer);
}
else {
mapped_indices = ib->ptr;
}
info.index_size = index_size;
info.index_bounds_valid = index_bounds_valid;
info.min_index = min_index;
info.max_index = max_index;
info.has_user_indices = true;
info.index.user = mapped_indices;
draw_set_indexes(draw,
(ubyte *) mapped_indices,
index_size, ~0);
info.primitive_restart = primitive_restart;
info.restart_index = restart_index;
} else {
info.index_size = 0;
info.has_user_indices = false;
}
/* set constant buffer 0 */
struct gl_program_parameter_list *params = st->vp->Base.Parameters;
/* Update the constants which come from fixed-function state, such as
* transformation matrices, fog factors, etc.
*
* It must be done here if the state tracker doesn't update state vars
* in gl_program_parameter_list because allow_constbuf0_as_real_buffer
* is set.
*/
if (st->prefer_real_buffer_in_constbuf0 && params->StateFlags)
_mesa_load_state_parameters(st->ctx, params);
draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0,
params->ParameterValues,
params->NumParameterValues * 4);
/* set uniform buffers */
const struct gl_program *prog = &vp->Base.Base;
struct pipe_transfer *ubo_transfer[PIPE_MAX_CONSTANT_BUFFERS] = {0};
assert(prog->info.num_ubos <= ARRAY_SIZE(ubo_transfer));
for (unsigned i = 0; i < prog->sh.NumUniformBlocks; i++) {
struct gl_buffer_binding *binding =
&st->ctx->UniformBufferBindings[prog->sh.UniformBlocks[i]->Binding];
struct st_buffer_object *st_obj = st_buffer_object(binding->BufferObject);
struct pipe_resource *buf = st_obj->buffer;
if (!buf)
continue;
unsigned offset = binding->Offset;
unsigned size = buf->width0 - offset;
/* AutomaticSize is FALSE if the buffer was set with BindBufferRange.
* Take the minimum just to be sure.
*/
if (!binding->AutomaticSize)
size = MIN2(size, (unsigned) binding->Size);
void *ptr = pipe_buffer_map_range(pipe, buf, offset, size,
PIPE_MAP_READ, &ubo_transfer[i]);
draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i, ptr,
size);
}
/* shader buffers */
/* TODO: atomic counter buffers */
struct pipe_transfer *ssbo_transfer[PIPE_MAX_SHADER_BUFFERS] = {0};
for (unsigned i = 0; i < prog->info.num_ssbos; i++) {
struct gl_buffer_binding *binding =
&st->ctx->ShaderStorageBufferBindings[
prog->sh.ShaderStorageBlocks[i]->Binding];
struct st_buffer_object *st_obj = st_buffer_object(binding->BufferObject);
struct pipe_resource *buf = st_obj->buffer;
if (!buf)
continue;
unsigned offset = binding->Offset;
unsigned size = buf->width0 - binding->Offset;
/* AutomaticSize is FALSE if the buffer was set with BindBufferRange.
* Take the minimum just to be sure.
*/
if (!binding->AutomaticSize)
size = MIN2(size, (unsigned) binding->Size);
void *ptr = pipe_buffer_map_range(pipe, buf, offset, size,
PIPE_MAP_READ, &ssbo_transfer[i]);
draw_set_mapped_shader_buffer(draw, PIPE_SHADER_VERTEX,
i, ptr, size);
}
/* samplers */
struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
for (unsigned i = 0; i < st->state.num_vert_samplers; i++)
samplers[i] = &st->state.vert_samplers[i];
draw_set_samplers(draw, PIPE_SHADER_VERTEX, samplers,
st->state.num_vert_samplers);
/* sampler views */
struct pipe_sampler_view *views[PIPE_MAX_SAMPLERS];
unsigned num_views =
st_get_sampler_views(st, PIPE_SHADER_VERTEX, prog, views);
draw_set_sampler_views(draw, PIPE_SHADER_VERTEX, views, num_views);
struct pipe_transfer *sv_transfer[PIPE_MAX_SAMPLERS][PIPE_MAX_TEXTURE_LEVELS];
for (unsigned i = 0; i < num_views; i++) {
struct pipe_sampler_view *view = views[i];
if (!view)
continue;
struct pipe_resource *res = view->texture;
unsigned width0 = res->width0;
unsigned num_layers = res->depth0;
unsigned first_level = 0;
unsigned last_level = 0;
uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
uint32_t mip_offset[PIPE_MAX_TEXTURE_LEVELS];
uintptr_t mip_addr[PIPE_MAX_TEXTURE_LEVELS];
uintptr_t base_addr;
if (res->target != PIPE_BUFFER) {
first_level = view->u.tex.first_level;
last_level = view->u.tex.last_level;
num_layers = view->u.tex.last_layer - view->u.tex.first_layer + 1;
base_addr = UINTPTR_MAX;
for (unsigned j = first_level; j <= last_level; j++) {
unsigned map_layers = res->target == PIPE_TEXTURE_3D ?
util_num_layers(res, j) : num_layers;
sv_transfer[i][j] = NULL;
mip_addr[j] = (uintptr_t)
pipe_texture_map_3d(pipe, res, j,
PIPE_MAP_READ, 0, 0,
view->u.tex.first_layer,
u_minify(res->width0, j),
u_minify(res->height0, j),
map_layers, &sv_transfer[i][j]);
row_stride[j] = sv_transfer[i][j]->stride;
img_stride[j] = sv_transfer[i][j]->layer_stride;
/* Get the minimum address, because the draw module takes only
* 1 address for the whole texture + uint32 offsets for mip levels,
* so we need to convert mapped resource pointers into that scheme.
*/
base_addr = MIN2(base_addr, mip_addr[j]);
}
for (unsigned j = first_level; j <= last_level; j++) {
/* TODO: The draw module should accept pointers for mipmap levels
* instead of offsets. This is unlikely to work on 64-bit archs.
*/
assert(mip_addr[j] - base_addr <= UINT32_MAX);
mip_offset[j] = mip_addr[j] - base_addr;
}
} else {
width0 = view->u.buf.size / util_format_get_blocksize(view->format);
/* probably don't really need to fill that out */
mip_offset[0] = 0;
row_stride[0] = 0;
img_stride[0] = 0;
sv_transfer[i][0] = NULL;
base_addr = (uintptr_t)
pipe_buffer_map_range(pipe, res, view->u.buf.offset,
view->u.buf.size,
PIPE_MAP_READ,
&sv_transfer[i][0]);
}
draw_set_mapped_texture(draw, PIPE_SHADER_VERTEX, i, width0,
res->height0, num_layers, first_level,
last_level, 0, 0, (void*)base_addr, row_stride,
img_stride, mip_offset);
}
/* shader images */
struct pipe_image_view images[PIPE_MAX_SHADER_IMAGES];
struct pipe_transfer *img_transfer[PIPE_MAX_SHADER_IMAGES] = {0};
for (unsigned i = 0; i < prog->info.num_images; i++) {
struct pipe_image_view *img = &images[i];
st_convert_image_from_unit(st, img, prog->sh.ImageUnits[i],
prog->sh.ImageAccess[i]);
struct pipe_resource *res = img->resource;
if (!res)
continue;
unsigned width, height, num_layers, row_stride, img_stride;
void *addr;
if (res->target != PIPE_BUFFER) {
width = u_minify(res->width0, img->u.tex.level);
height = u_minify(res->height0, img->u.tex.level);
num_layers = img->u.tex.last_layer - img->u.tex.first_layer + 1;
addr = pipe_texture_map_3d(pipe, res, img->u.tex.level,
PIPE_MAP_READ, 0, 0,
img->u.tex.first_layer,
width, height, num_layers,
&img_transfer[i]);
row_stride = img_transfer[i]->stride;
img_stride = img_transfer[i]->layer_stride;
} else {
width = img->u.buf.size / util_format_get_blocksize(img->format);
/* probably don't really need to fill that out */
row_stride = 0;
img_stride = 0;
height = num_layers = 1;
addr = pipe_buffer_map_range(pipe, res, img->u.buf.offset,
img->u.buf.size, PIPE_MAP_READ,
&img_transfer[i]);
}
draw_set_mapped_image(draw, PIPE_SHADER_VERTEX, i, width, height,
num_layers, addr, row_stride, img_stride, 0, 0);
}
draw_set_images(draw, PIPE_SHADER_VERTEX, images, prog->info.num_images);
info.start_instance = base_instance;
info.instance_count = num_instances;
/* draw here */
for (i = 0; i < nr_prims; i++) {
struct pipe_draw_start_count_bias d;
d.count = prims[i].count;
if (!d.count)
continue;
d.start = start + prims[i].start;
info.mode = prims[i].mode;
d.index_bias = prims[i].basevertex;
if (!ib) {
info.min_index = d.start;
info.max_index = d.start + d.count - 1;
}
draw_vbo(draw, &info, prims[i].draw_id, NULL, &d, 1,
ctx->TessCtrlProgram.patch_vertices);
}
/* unmap images */
for (unsigned i = 0; i < prog->info.num_images; i++) {
if (img_transfer[i]) {
draw_set_mapped_image(draw, PIPE_SHADER_VERTEX, i, 0, 0, 0, NULL, 0, 0, 0, 0);
if (img_transfer[i]->resource->target == PIPE_BUFFER)
pipe_buffer_unmap(pipe, img_transfer[i]);
else
pipe_texture_unmap(pipe, img_transfer[i]);
}
}
/* unmap sampler views */
for (unsigned i = 0; i < num_views; i++) {
struct pipe_sampler_view *view = views[i];
if (view) {
if (view->texture->target != PIPE_BUFFER) {
for (unsigned j = view->u.tex.first_level;
j <= view->u.tex.last_level; j++) {
pipe_texture_unmap(pipe, sv_transfer[i][j]);
}
} else {
pipe_buffer_unmap(pipe, sv_transfer[i][0]);
}
pipe_sampler_view_reference(&views[i], NULL);
}
}
draw_set_samplers(draw, PIPE_SHADER_VERTEX, NULL, 0);
draw_set_sampler_views(draw, PIPE_SHADER_VERTEX, NULL, 0);
for (unsigned i = 0; i < prog->info.num_ssbos; i++) {
if (ssbo_transfer[i]) {
draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i,
NULL, 0);
pipe_buffer_unmap(pipe, ssbo_transfer[i]);
}
}
for (unsigned i = 0; i < prog->info.num_ubos; i++) {
if (ubo_transfer[i]) {
draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i,
NULL, 0);
pipe_buffer_unmap(pipe, ubo_transfer[i]);
}
}
/*
* unmap vertex/index buffers
*/
if (ib) {
draw_set_indexes(draw, NULL, 0, 0);
if (ib_transfer)
pipe_buffer_unmap(pipe, ib_transfer);
}
out_unref_vertex:
for (unsigned buf = 0; buf < num_vbuffers; ++buf) {
if (vb_transfer[buf])
pipe_buffer_unmap(pipe, vb_transfer[buf]);
draw_set_mapped_vertex_buffer(draw, buf, NULL, 0);
}
draw_set_vertex_buffers(draw, 0, 0, num_vbuffers, NULL);
draw_bind_vertex_shader(draw, NULL);
}