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mesa/src/gallium/drivers/llvmpipe/lp_surface.c

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/**************************************************************************
*
* 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 "util/u_rect.h"
#include "util/u_surface.h"
#include "util/u_memset.h"
#include "lp_context.h"
#include "lp_flush.h"
#include "lp_limits.h"
#include "lp_surface.h"
#include "lp_texture.h"
#include "lp_query.h"
#include "lp_rast.h"
static void
lp_resource_copy_ms(struct pipe_context *pipe,
struct pipe_resource *dst, unsigned dst_level,
unsigned dstx, unsigned dsty, unsigned dstz,
struct pipe_resource *src, unsigned src_level,
const struct pipe_box *src_box)
{
struct pipe_box dst_box = *src_box;
enum pipe_format src_format;
dst_box.x = dstx;
dst_box.y = dsty;
dst_box.z = dstz;
src_format = src->format;
for (unsigned i = 0; i < MAX2(src->nr_samples, dst->nr_samples); i++) {
struct pipe_transfer *src_trans, *dst_trans;
const uint8_t *src_map = llvmpipe_transfer_map_ms(pipe,
src, 0, PIPE_MAP_READ, MIN2(i, src->nr_samples - 1),
src_box,
&src_trans);
if (!src_map)
return;
uint8_t *dst_map = llvmpipe_transfer_map_ms(pipe,
dst, 0, PIPE_MAP_WRITE, i,
&dst_box,
&dst_trans);
if (!dst_map) {
pipe->texture_unmap(pipe, src_trans);
return;
}
util_copy_box(dst_map,
src_format,
dst_trans->stride, dst_trans->layer_stride,
0, 0, 0,
src_box->width, src_box->height, src_box->depth,
src_map,
src_trans->stride, src_trans->layer_stride,
0, 0, 0);
pipe->texture_unmap(pipe, dst_trans);
pipe->texture_unmap(pipe, src_trans);
}
}
static void
lp_resource_copy(struct pipe_context *pipe,
struct pipe_resource *dst, unsigned dst_level,
unsigned dstx, unsigned dsty, unsigned dstz,
struct pipe_resource *src, unsigned src_level,
const struct pipe_box *src_box)
{
llvmpipe_flush_resource(pipe,
dst, dst_level,
FALSE, /* read_only */
TRUE, /* cpu_access */
FALSE, /* do_not_block */
"blit dest");
llvmpipe_flush_resource(pipe,
src, src_level,
TRUE, /* read_only */
TRUE, /* cpu_access */
FALSE, /* do_not_block */
"blit src");
if (dst->nr_samples > 1 &&
(dst->nr_samples == src->nr_samples ||
(src->nr_samples == 1 && dst->nr_samples > 1))) {
lp_resource_copy_ms(pipe, dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
return;
}
util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
}
static void lp_blit(struct pipe_context *pipe,
const struct pipe_blit_info *blit_info)
{
struct llvmpipe_context *lp = llvmpipe_context(pipe);
struct pipe_blit_info info = *blit_info;
if (blit_info->render_condition_enable && !llvmpipe_check_render_cond(lp))
return;
if (util_try_blit_via_copy_region(pipe, &info, lp->render_cond_query != NULL)) {
return; /* done */
}
if (blit_info->src.resource->format == blit_info->src.format &&
blit_info->dst.resource->format == blit_info->dst.format &&
blit_info->src.format == blit_info->dst.format &&
blit_info->src.resource->nr_samples > 1 &&
blit_info->dst.resource->nr_samples < 2 &&
blit_info->sample0_only) {
util_resource_copy_region(pipe, blit_info->dst.resource, blit_info->dst.level, blit_info->dst.box.x, blit_info->dst.box.y, blit_info->dst.box.z,
blit_info->src.resource, blit_info->src.level, &blit_info->src.box);
return;
}
if (!util_blitter_is_blit_supported(lp->blitter, &info)) {
debug_printf("llvmpipe: blit unsupported %s -> %s\n",
util_format_short_name(info.src.resource->format),
util_format_short_name(info.dst.resource->format));
return;
}
/* for 32-bit unorm depth, avoid the conversions to float and back,
which can introduce accuracy errors. */
if (blit_info->src.format == PIPE_FORMAT_Z32_UNORM &&
blit_info->dst.format == PIPE_FORMAT_Z32_UNORM && info.filter == PIPE_TEX_FILTER_NEAREST) {
info.src.format = PIPE_FORMAT_R32_UINT;
info.dst.format = PIPE_FORMAT_R32_UINT;
info.mask = PIPE_MASK_R;
}
util_blitter_save_vertex_buffer_slot(lp->blitter, lp->vertex_buffer);
util_blitter_save_vertex_elements(lp->blitter, (void*)lp->velems);
util_blitter_save_vertex_shader(lp->blitter, (void*)lp->vs);
util_blitter_save_geometry_shader(lp->blitter, (void*)lp->gs);
util_blitter_save_so_targets(lp->blitter, lp->num_so_targets,
(struct pipe_stream_output_target**)lp->so_targets);
util_blitter_save_rasterizer(lp->blitter, (void*)lp->rasterizer);
util_blitter_save_viewport(lp->blitter, &lp->viewports[0]);
util_blitter_save_scissor(lp->blitter, &lp->scissors[0]);
util_blitter_save_fragment_shader(lp->blitter, lp->fs);
util_blitter_save_blend(lp->blitter, (void*)lp->blend);
util_blitter_save_tessctrl_shader(lp->blitter, (void*)lp->tcs);
util_blitter_save_tesseval_shader(lp->blitter, (void*)lp->tes);
util_blitter_save_depth_stencil_alpha(lp->blitter, (void*)lp->depth_stencil);
util_blitter_save_stencil_ref(lp->blitter, &lp->stencil_ref);
util_blitter_save_sample_mask(lp->blitter, lp->sample_mask, lp->min_samples);
util_blitter_save_framebuffer(lp->blitter, &lp->framebuffer);
util_blitter_save_fragment_sampler_states(lp->blitter,
lp->num_samplers[PIPE_SHADER_FRAGMENT],
(void**)lp->samplers[PIPE_SHADER_FRAGMENT]);
util_blitter_save_fragment_sampler_views(lp->blitter,
lp->num_sampler_views[PIPE_SHADER_FRAGMENT],
lp->sampler_views[PIPE_SHADER_FRAGMENT]);
util_blitter_save_render_condition(lp->blitter, lp->render_cond_query,
lp->render_cond_cond, lp->render_cond_mode);
util_blitter_blit(lp->blitter, &info);
}
static void
lp_flush_resource(struct pipe_context *ctx, struct pipe_resource *resource)
{
llvmpipe_flush_resource(ctx, resource, 0, true, true, false, "resource");
}
static struct pipe_surface *
llvmpipe_create_surface(struct pipe_context *pipe,
struct pipe_resource *pt,
const struct pipe_surface *surf_tmpl)
{
struct pipe_surface *ps;
if (!(pt->bind & (PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET))) {
debug_printf("Illegal surface creation without bind flag\n");
if (util_format_is_depth_or_stencil(surf_tmpl->format)) {
pt->bind |= PIPE_BIND_DEPTH_STENCIL;
}
else {
pt->bind |= PIPE_BIND_RENDER_TARGET;
}
}
ps = CALLOC_STRUCT(pipe_surface);
if (ps) {
pipe_reference_init(&ps->reference, 1);
pipe_resource_reference(&ps->texture, pt);
ps->context = pipe;
ps->format = surf_tmpl->format;
if (llvmpipe_resource_is_texture(pt)) {
assert(surf_tmpl->u.tex.level <= pt->last_level);
assert(surf_tmpl->u.tex.first_layer <= surf_tmpl->u.tex.last_layer);
ps->width = u_minify(pt->width0, surf_tmpl->u.tex.level);
ps->height = u_minify(pt->height0, surf_tmpl->u.tex.level);
ps->u.tex.level = surf_tmpl->u.tex.level;
ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
}
else {
/* setting width as number of elements should get us correct renderbuffer width */
ps->width = surf_tmpl->u.buf.last_element - surf_tmpl->u.buf.first_element + 1;
ps->height = pt->height0;
ps->u.buf.first_element = surf_tmpl->u.buf.first_element;
ps->u.buf.last_element = surf_tmpl->u.buf.last_element;
assert(ps->u.buf.first_element <= ps->u.buf.last_element);
assert(util_format_get_blocksize(surf_tmpl->format) *
(ps->u.buf.last_element + 1) <= pt->width0);
}
}
return ps;
}
static void
llvmpipe_surface_destroy(struct pipe_context *pipe,
struct pipe_surface *surf)
{
/* Effectively do the texture_update work here - if texture images
* needed post-processing to put them into hardware layout, this is
* where it would happen. For llvmpipe, nothing to do.
*/
assert(surf->texture);
pipe_resource_reference(&surf->texture, NULL);
FREE(surf);
}
static void
llvmpipe_get_sample_position(struct pipe_context *pipe,
unsigned sample_count,
unsigned sample_index,
float *out_value)
{
switch (sample_count) {
case 4:
out_value[0] = lp_sample_pos_4x[sample_index][0];
out_value[1] = lp_sample_pos_4x[sample_index][1];
break;
default:
break;
}
}
static void
lp_clear_color_texture_helper(struct pipe_transfer *dst_trans,
ubyte *dst_map,
enum pipe_format format,
const union pipe_color_union *color,
unsigned width, unsigned height, unsigned depth)
{
union util_color uc;
assert(dst_trans->stride > 0);
util_pack_color_union(format, &uc, color);
util_fill_box(dst_map, format,
dst_trans->stride, dst_trans->layer_stride,
0, 0, 0, width, height, depth, &uc);
}
static void
lp_clear_color_texture_msaa(struct pipe_context *pipe,
struct pipe_resource *texture,
enum pipe_format format,
const union pipe_color_union *color,
unsigned sample,
const struct pipe_box *box)
{
struct pipe_transfer *dst_trans;
ubyte *dst_map;
dst_map = llvmpipe_transfer_map_ms(pipe, texture, 0, PIPE_MAP_WRITE,
sample, box, &dst_trans);
if (!dst_map)
return;
if (dst_trans->stride > 0) {
lp_clear_color_texture_helper(dst_trans, dst_map, format, color,
box->width, box->height, box->depth);
}
pipe->texture_unmap(pipe, dst_trans);
}
static void
llvmpipe_clear_render_target(struct pipe_context *pipe,
struct pipe_surface *dst,
const union pipe_color_union *color,
unsigned dstx, unsigned dsty,
unsigned width, unsigned height,
bool render_condition_enabled)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
if (render_condition_enabled && !llvmpipe_check_render_cond(llvmpipe))
return;
width = MIN2(width, dst->texture->width0 - dstx);
height = MIN2(height, dst->texture->height0 - dsty);
if (dst->texture->nr_samples > 1) {
struct pipe_box box;
u_box_2d(dstx, dsty, width, height, &box);
if (dst->texture->target != PIPE_BUFFER) {
box.z = dst->u.tex.first_layer;
box.depth = dst->u.tex.last_layer - dst->u.tex.first_layer + 1;
}
for (unsigned s = 0; s < util_res_sample_count(dst->texture); s++) {
lp_clear_color_texture_msaa(pipe, dst->texture, dst->format,
color, s, &box);
}
} else
util_clear_render_target(pipe, dst, color,
dstx, dsty, width, height);
}
static void
lp_clear_depth_stencil_texture_msaa(struct pipe_context *pipe,
struct pipe_resource *texture,
enum pipe_format format,
unsigned clear_flags,
uint64_t zstencil, unsigned sample,
const struct pipe_box *box)
{
struct pipe_transfer *dst_trans;
ubyte *dst_map;
boolean need_rmw = FALSE;
if ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) &&
((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) &&
util_format_is_depth_and_stencil(format))
need_rmw = TRUE;
dst_map = llvmpipe_transfer_map_ms(pipe,
texture,
0,
(need_rmw ? PIPE_MAP_READ_WRITE :
PIPE_MAP_WRITE),
sample, box, &dst_trans);
assert(dst_map);
if (!dst_map)
return;
assert(dst_trans->stride > 0);
util_fill_zs_box(dst_map, format, need_rmw, clear_flags,
dst_trans->stride, dst_trans->layer_stride,
box->width, box->height, box->depth, zstencil);
pipe->texture_unmap(pipe, dst_trans);
}
static void
llvmpipe_clear_depth_stencil(struct pipe_context *pipe,
struct pipe_surface *dst,
unsigned clear_flags,
double depth,
unsigned stencil,
unsigned dstx, unsigned dsty,
unsigned width, unsigned height,
bool render_condition_enabled)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
if (render_condition_enabled && !llvmpipe_check_render_cond(llvmpipe))
return;
width = MIN2(width, dst->texture->width0 - dstx);
height = MIN2(height, dst->texture->height0 - dsty);
if (dst->texture->nr_samples > 1) {
uint64_t zstencil = util_pack64_z_stencil(dst->format, depth, stencil);
struct pipe_box box;
u_box_2d(dstx, dsty, width, height, &box);
if (dst->texture->target != PIPE_BUFFER) {
box.z = dst->u.tex.first_layer;
box.depth = dst->u.tex.last_layer - dst->u.tex.first_layer + 1;
}
for (unsigned s = 0; s < util_res_sample_count(dst->texture); s++)
lp_clear_depth_stencil_texture_msaa(pipe, dst->texture,
dst->format, clear_flags,
zstencil, s, &box);
} else
util_clear_depth_stencil(pipe, dst, clear_flags,
depth, stencil,
dstx, dsty, width, height);
}
static void
llvmpipe_clear_texture(struct pipe_context *pipe,
struct pipe_resource *tex,
unsigned level,
const struct pipe_box *box,
const void *data)
{
const struct util_format_description *desc =
util_format_description(tex->format);
if (tex->nr_samples <= 1) {
util_clear_texture(pipe, tex, level, box, data);
return;
}
union pipe_color_union color;
if (util_format_is_depth_or_stencil(tex->format)) {
unsigned clear = 0;
float depth = 0.0f;
uint8_t stencil = 0;
uint64_t zstencil;
if (util_format_has_depth(desc)) {
clear |= PIPE_CLEAR_DEPTH;
util_format_unpack_z_float(tex->format, &depth, data, 1);
}
if (util_format_has_stencil(desc)) {
clear |= PIPE_CLEAR_STENCIL;
util_format_unpack_s_8uint(tex->format, &stencil, data, 1);
}
zstencil = util_pack64_z_stencil(tex->format, depth, stencil);
for (unsigned s = 0; s < util_res_sample_count(tex); s++)
lp_clear_depth_stencil_texture_msaa(pipe, tex, tex->format, clear, zstencil,
s, box);
} else {
util_format_unpack_rgba(tex->format, color.ui, data, 1);
for (unsigned s = 0; s < util_res_sample_count(tex); s++) {
lp_clear_color_texture_msaa(pipe, tex, tex->format, &color, s,
box);
}
}
}
static void
llvmpipe_clear_buffer(struct pipe_context *pipe,
struct pipe_resource *res,
unsigned offset,
unsigned size,
const void *clear_value,
int clear_value_size)
{
struct pipe_transfer *dst_t;
struct pipe_box box;
char *dst;
u_box_1d(offset, size, &box);
dst = pipe->buffer_map(pipe,
res,
0,
PIPE_MAP_WRITE,
&box,
&dst_t);
switch (clear_value_size) {
case 1:
memset(dst, *(uint8_t *)clear_value, size);
break;
case 4:
util_memset32(dst, *(uint32_t *)clear_value, size / 4);
break;
default:
for (unsigned i = 0; i < size; i += clear_value_size)
memcpy(&dst[i], clear_value, clear_value_size);
break;
}
pipe->buffer_unmap(pipe, dst_t);
}
void
llvmpipe_init_surface_functions(struct llvmpipe_context *lp)
{
lp->pipe.clear_render_target = llvmpipe_clear_render_target;
lp->pipe.clear_depth_stencil = llvmpipe_clear_depth_stencil;
lp->pipe.create_surface = llvmpipe_create_surface;
lp->pipe.surface_destroy = llvmpipe_surface_destroy;
/* These are not actually functions dealing with surfaces */
lp->pipe.clear_texture = llvmpipe_clear_texture;
lp->pipe.clear_buffer = llvmpipe_clear_buffer;
lp->pipe.resource_copy_region = lp_resource_copy;
lp->pipe.blit = lp_blit;
lp->pipe.flush_resource = lp_flush_resource;
lp->pipe.get_sample_position = llvmpipe_get_sample_position;
}
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