/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
*
* 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, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#include "util/u_format.h"
#include "util/u_format_zs.h"
#include "util/u_inlines.h"
#include "util/u_transfer.h"
#include "util/u_string.h"
#include "util/u_surface.h"
#include "freedreno_resource.h"
#include "freedreno_screen.h"
#include "freedreno_surface.h"
#include "freedreno_context.h"
#include "freedreno_query_hw.h"
#include "freedreno_util.h"
#include <errno.h>
static void
fd_invalidate_resource(struct fd_context *ctx, struct pipe_resource *prsc)
{
int i;
/* Go through the entire state and see if the resource is bound
* anywhere. If it is, mark the relevant state as dirty. This is called on
* realloc_bo.
*/
/* Constbufs */
for (i = 1; i < PIPE_MAX_CONSTANT_BUFFERS && !(ctx->dirty & FD_DIRTY_CONSTBUF); i++) {
if (ctx->constbuf[PIPE_SHADER_VERTEX].cb[i].buffer == prsc)
ctx->dirty |= FD_DIRTY_CONSTBUF;
if (ctx->constbuf[PIPE_SHADER_FRAGMENT].cb[i].buffer == prsc)
ctx->dirty |= FD_DIRTY_CONSTBUF;
}
/* VBOs */
for (i = 0; i < ctx->vtx.vertexbuf.count && !(ctx->dirty & FD_DIRTY_VTXBUF); i++) {
if (ctx->vtx.vertexbuf.vb[i].buffer == prsc)
ctx->dirty |= FD_DIRTY_VTXBUF;
}
/* Index buffer */
if (ctx->indexbuf.buffer == prsc)
ctx->dirty |= FD_DIRTY_INDEXBUF;
/* Textures */
for (i = 0; i < ctx->verttex.num_textures && !(ctx->dirty & FD_DIRTY_VERTTEX); i++) {
if (ctx->verttex.textures[i]->texture == prsc)
ctx->dirty |= FD_DIRTY_VERTTEX;
}
for (i = 0; i < ctx->fragtex.num_textures && !(ctx->dirty & FD_DIRTY_FRAGTEX); i++) {
if (ctx->fragtex.textures[i]->texture == prsc)
ctx->dirty |= FD_DIRTY_FRAGTEX;
}
}
static void
realloc_bo(struct fd_resource *rsc, uint32_t size)
{
struct fd_screen *screen = fd_screen(rsc->base.b.screen);
uint32_t flags = DRM_FREEDRENO_GEM_CACHE_WCOMBINE |
DRM_FREEDRENO_GEM_TYPE_KMEM; /* TODO */
/* if we start using things other than write-combine,
* be sure to check for PIPE_RESOURCE_FLAG_MAP_COHERENT
*/
if (rsc->bo)
fd_bo_del(rsc->bo);
rsc->bo = fd_bo_new(screen->dev, size, flags);
rsc->timestamp = 0;
rsc->dirty = rsc->reading = false;
list_delinit(&rsc->list);
util_range_set_empty(&rsc->valid_buffer_range);
}
/* Currently this is only used for flushing Z32_S8 texture transfers, but
* eventually it should handle everything.
*/
static void
fd_resource_flush(struct fd_transfer *trans, const struct pipe_box *box)
{
struct fd_resource *rsc = fd_resource(trans->base.resource);
struct fd_resource_slice *slice = fd_resource_slice(rsc, trans->base.level);
struct fd_resource_slice *sslice = fd_resource_slice(rsc->stencil, trans->base.level);
enum pipe_format format = trans->base.resource->format;
float *depth = fd_bo_map(rsc->bo) + slice->offset +
(trans->base.box.y + box->y) * slice->pitch * 4 + (trans->base.box.x + box->x) * 4;
uint8_t *stencil = fd_bo_map(rsc->stencil->bo) + sslice->offset +
(trans->base.box.y + box->y) * sslice->pitch + trans->base.box.x + box->x;
assert(format
== PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
|| format == PIPE_FORMAT_X32_S8X24_UINT);
if (format != PIPE_FORMAT_X32_S8X24_UINT)
util_format_z32_float_s8x24_uint_unpack_z_float(
depth, slice->pitch * 4,
trans->staging, trans->base.stride,
box->width, box->height);
util_format_z32_float_s8x24_uint_unpack_s_8uint(
stencil, sslice->pitch,
trans->staging, trans->base.stride,
box->width, box->height);
}
static void fd_resource_transfer_flush_region(struct pipe_context *pctx,
struct pipe_transfer *ptrans,
const struct pipe_box *box)
{
struct fd_resource *rsc = fd_resource(ptrans->resource);
struct fd_transfer *trans = fd_transfer(ptrans);
if (ptrans->resource->target == PIPE_BUFFER)
util_range_add(&rsc->valid_buffer_range,
ptrans->box.x + box->x,
ptrans->box.x + box->x + box->width);
if (trans->staging)
fd_resource_flush(trans, box);
}
static void
fd_resource_transfer_unmap(struct pipe_context *pctx,
struct pipe_transfer *ptrans)
{
struct fd_context *ctx = fd_context(pctx);
struct fd_resource *rsc = fd_resource(ptrans->resource);
struct fd_transfer *trans = fd_transfer(ptrans);
if (trans->staging && !(ptrans->usage & PIPE_TRANSFER_FLUSH_EXPLICIT)) {
struct pipe_box box;
u_box_2d(0, 0, ptrans->box.width, ptrans->box.height, &box);
fd_resource_flush(trans, &box);
}
if (!(ptrans->usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
fd_bo_cpu_fini(rsc->bo);
if (rsc->stencil)
fd_bo_cpu_fini(rsc->stencil->bo);
}
util_range_add(&rsc->valid_buffer_range,
ptrans->box.x,
ptrans->box.x + ptrans->box.width);
pipe_resource_reference(&ptrans->resource, NULL);
util_slab_free(&ctx->transfer_pool, ptrans);
if (trans->staging)
}
static void *
fd_resource_transfer_map(struct pipe_context *pctx,
struct pipe_resource *prsc,
unsigned level, unsigned usage,
const struct pipe_box *box,
struct pipe_transfer **pptrans)
{
struct fd_context *ctx = fd_context(pctx);
struct fd_resource *rsc = fd_resource(prsc);
struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
struct fd_transfer *trans;
struct pipe_transfer *ptrans;
enum pipe_format format = prsc->format;
uint32_t op = 0;
uint32_t offset;
char *buf;
int ret = 0;
DBG("prsc=%p, level=%u, usage=%x, box=%dx%d+%d,%d", prsc, level, usage,
box->width, box->height, box->x, box->y);
ptrans = util_slab_alloc(&ctx->transfer_pool);
if (!ptrans)
return NULL;
/* util_slab_alloc() doesn't zero: */
trans = fd_transfer(ptrans);
memset(trans
, 0, sizeof(*trans
));
pipe_resource_reference(&ptrans->resource, prsc);
ptrans->level = level;
ptrans->usage = usage;
ptrans->box = *box;
ptrans->stride = slice->pitch * rsc->cpp;
ptrans->layer_stride = slice->size0;
if (usage & PIPE_TRANSFER_READ)
op |= DRM_FREEDRENO_PREP_READ;
if (usage & PIPE_TRANSFER_WRITE)
op |= DRM_FREEDRENO_PREP_WRITE;
if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
realloc_bo(rsc, fd_bo_size(rsc->bo));
if (rsc->stencil)
realloc_bo(rsc->stencil, fd_bo_size(rsc->stencil->bo));
fd_invalidate_resource(ctx, prsc);
} else if ((usage & PIPE_TRANSFER_WRITE) &&
prsc->target == PIPE_BUFFER &&
!util_ranges_intersect(&rsc->valid_buffer_range,
box->x, box->x + box->width)) {
/* We are trying to write to a previously uninitialized range. No need
* to wait.
*/
} else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
/* If the GPU is writing to the resource, or if it is reading from the
* resource and we're trying to write to it, flush the renders.
*/
if (rsc->dirty || (rsc->stencil && rsc->stencil->dirty) ||
((ptrans->usage & PIPE_TRANSFER_WRITE) && rsc->reading))
fd_context_render(pctx);
/* The GPU keeps track of how the various bo's are being used, and
* will wait if necessary for the proper operation to have
* completed.
*/
ret = fd_bo_cpu_prep(rsc->bo, ctx->screen->pipe, op);
if (ret)
goto fail;
}
buf = fd_bo_map(rsc->bo);
if (!buf) {
fd_resource_transfer_unmap(pctx, ptrans);
return NULL;
}
if (rsc->layer_first) {
offset = slice->offset +
box->y / util_format_get_blockheight(format) * ptrans->stride +
box->x / util_format_get_blockwidth(format) * rsc->cpp +
box->z * rsc->layer_size;
} else {
offset = slice->offset +
box->y / util_format_get_blockheight(format) * ptrans->stride +
box->x / util_format_get_blockwidth(format) * rsc->cpp +
box->z * slice->size0;
}
if (prsc->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT ||
prsc->format == PIPE_FORMAT_X32_S8X24_UINT) {
trans->base.stride = trans->base.box.width * rsc->cpp * 2;
trans
->staging
= malloc(trans
->base.
stride * trans
->base.
box.
height); if (!trans->staging)
goto fail;
/* if we're not discarding the whole range (or resource), we must copy
* the real data in.
*/
if (!(usage & (PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE |
PIPE_TRANSFER_DISCARD_RANGE))) {
struct fd_resource_slice *sslice =
fd_resource_slice(rsc->stencil, level);
void *sbuf = fd_bo_map(rsc->stencil->bo);
if (!sbuf)
goto fail;
float *depth = (float *)(buf + slice->offset +
box->y * slice->pitch * 4 + box->x * 4);
uint8_t *stencil = sbuf + sslice->offset +
box->y * sslice->pitch + box->x;
if (format != PIPE_FORMAT_X32_S8X24_UINT)
util_format_z32_float_s8x24_uint_pack_z_float(
trans->staging, trans->base.stride,
depth, slice->pitch * 4,
box->width, box->height);
util_format_z32_float_s8x24_uint_pack_s_8uint(
trans->staging, trans->base.stride,
stencil, sslice->pitch,
box->width, box->height);
}
buf = trans->staging;
offset = 0;
}
*pptrans = ptrans;
return buf + offset;
fail:
fd_resource_transfer_unmap(pctx, ptrans);
return NULL;
}
static void
fd_resource_destroy(struct pipe_screen *pscreen,
struct pipe_resource *prsc)
{
struct fd_resource *rsc = fd_resource(prsc);
if (rsc->bo)
fd_bo_del(rsc->bo);
list_delinit(&rsc->list);
util_range_destroy(&rsc->valid_buffer_range);
FREE(rsc);
}
static boolean
fd_resource_get_handle(struct pipe_screen *pscreen,
struct pipe_resource *prsc,
struct winsys_handle *handle)
{
struct fd_resource *rsc = fd_resource(prsc);
return fd_screen_bo_get_handle(pscreen, rsc->bo,
rsc->slices[0].pitch * rsc->cpp, handle);
}
static const struct u_resource_vtbl fd_resource_vtbl = {
.resource_get_handle = fd_resource_get_handle,
.resource_destroy = fd_resource_destroy,
.transfer_map = fd_resource_transfer_map,
.transfer_flush_region = fd_resource_transfer_flush_region,
.transfer_unmap = fd_resource_transfer_unmap,
.transfer_inline_write = u_default_transfer_inline_write,
};
static uint32_t
setup_slices(struct fd_resource *rsc, uint32_t alignment)
{
struct pipe_resource *prsc = &rsc->base.b;
uint32_t level, size = 0;
uint32_t width = prsc->width0;
uint32_t height = prsc->height0;
uint32_t depth = prsc->depth0;
/* in layer_first layout, the level (slice) contains just one
* layer (since in fact the layer contains the slices)
*/
uint32_t layers_in_level = rsc->layer_first ? 1 : prsc->array_size;
for (level = 0; level <= prsc->last_level; level++) {
struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
slice->pitch = width = align(width, 32);
slice->offset = size;
/* 1d array and 2d array textures must all have the same layer size
* for each miplevel on a3xx. 3d textures can have different layer
* sizes for high levels, but the hw auto-sizer is buggy (or at least
* different than what this code does), so as soon as the layer size
* range gets into range, we stop reducing it.
*/
if (prsc->target == PIPE_TEXTURE_3D && (
level == 1 ||
(level > 1 && rsc->slices[level - 1].size0 > 0xf000)))
slice->size0 = align(slice->pitch * height * rsc->cpp, alignment);
else if (level == 0 || rsc->layer_first || alignment == 1)
slice->size0 = align(slice->pitch * height * rsc->cpp, alignment);
else
slice->size0 = rsc->slices[level - 1].size0;
size += slice->size0 * depth * layers_in_level;
width = u_minify(width, 1);
height = u_minify(height, 1);
depth = u_minify(depth, 1);
}
return size;
}
static uint32_t
slice_alignment(struct pipe_screen *pscreen, const struct pipe_resource *tmpl)
{
/* on a3xx, 2d array and 3d textures seem to want their
* layers aligned to page boundaries:
*/
switch (tmpl->target) {
case PIPE_TEXTURE_3D:
case PIPE_TEXTURE_1D_ARRAY:
case PIPE_TEXTURE_2D_ARRAY:
return 4096;
default:
return 1;
}
}
/**
* Create a new texture object, using the given template info.
*/
static struct pipe_resource *
fd_resource_create(struct pipe_screen *pscreen,
const struct pipe_resource *tmpl)
{
struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
struct pipe_resource *prsc = &rsc->base.b;
uint32_t size;
DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
"nr_samples=%u, usage=%u, bind=%x, flags=%x",
tmpl->target, util_format_name(tmpl->format),
tmpl->width0, tmpl->height0, tmpl->depth0,
tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
tmpl->usage, tmpl->bind, tmpl->flags);
if (!rsc)
return NULL;
*prsc = *tmpl;
pipe_reference_init(&prsc->reference, 1);
list_inithead(&rsc->list);
prsc->screen = pscreen;
util_range_init(&rsc->valid_buffer_range);
rsc->base.vtbl = &fd_resource_vtbl;
if (tmpl->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)
rsc->cpp = util_format_get_blocksize(PIPE_FORMAT_Z32_FLOAT);
else
rsc->cpp = util_format_get_blocksize(tmpl->format);
if (is_a4xx(fd_screen(pscreen))) {
switch (tmpl->target) {
case PIPE_TEXTURE_3D:
/* TODO 3D_ARRAY? */
rsc->layer_first = false;
break;
default:
rsc->layer_first = true;
break;
}
}
size = setup_slices(rsc, slice_alignment(pscreen, tmpl));
if (rsc->layer_first) {
rsc->layer_size = align(size, 4096);
size = rsc->layer_size * prsc->array_size;
}
realloc_bo(rsc, size);
if (!rsc->bo)
goto fail;
/* There is no native Z32F_S8 sampling or rendering format, so this must
* be emulated via two separate textures. The depth texture still keeps
* its Z32F_S8 format though, and we also keep a reference to a separate
* S8 texture.
*/
if (tmpl->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT) {
struct pipe_resource stencil = *tmpl;
stencil.format = PIPE_FORMAT_S8_UINT;
rsc->stencil = fd_resource(fd_resource_create(pscreen, &stencil));
if (!rsc->stencil)
goto fail;
}
return prsc;
fail:
fd_resource_destroy(pscreen, prsc);
return NULL;
}
/**
* Create a texture from a winsys_handle. The handle is often created in
* another process by first creating a pipe texture and then calling
* resource_get_handle.
*/
static struct pipe_resource *
fd_resource_from_handle(struct pipe_screen *pscreen,
const struct pipe_resource *tmpl,
struct winsys_handle *handle)
{
struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
struct fd_resource_slice *slice = &rsc->slices[0];
struct pipe_resource *prsc = &rsc->base.b;
DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
"nr_samples=%u, usage=%u, bind=%x, flags=%x",
tmpl->target, util_format_name(tmpl->format),
tmpl->width0, tmpl->height0, tmpl->depth0,
tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
tmpl->usage, tmpl->bind, tmpl->flags);
if (!rsc)
return NULL;
*prsc = *tmpl;
pipe_reference_init(&prsc->reference, 1);
list_inithead(&rsc->list);
prsc->screen = pscreen;
util_range_init(&rsc->valid_buffer_range);
rsc->bo = fd_screen_bo_from_handle(pscreen, handle, &slice->pitch);
if (!rsc->bo)
goto fail;
rsc->base.vtbl = &fd_resource_vtbl;
rsc->cpp = util_format_get_blocksize(tmpl->format);
slice->pitch /= rsc->cpp;
return prsc;
fail:
fd_resource_destroy(pscreen, prsc);
return NULL;
}
static void fd_blitter_pipe_begin(struct fd_context *ctx);
static void fd_blitter_pipe_end(struct fd_context *ctx);
/**
* _copy_region using pipe (3d engine)
*/
static bool
fd_blitter_pipe_copy_region(struct fd_context *ctx,
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)
{
/* not until we allow rendertargets to be buffers */
if (dst->target == PIPE_BUFFER || src->target == PIPE_BUFFER)
return false;
if (!util_blitter_is_copy_supported(ctx->blitter, dst, src))
return false;
fd_blitter_pipe_begin(ctx);
util_blitter_copy_texture(ctx->blitter,
dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
fd_blitter_pipe_end(ctx);
return true;
}
/**
* Copy a block of pixels from one resource to another.
* The resource must be of the same format.
* Resources with nr_samples > 1 are not allowed.
*/
static void
fd_resource_copy_region(struct pipe_context *pctx,
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 fd_context *ctx = fd_context(pctx);
/* TODO if we have 2d core, or other DMA engine that could be used
* for simple copies and reasonably easily synchronized with the 3d
* core, this is where we'd plug it in..
*/
/* try blit on 3d pipe: */
if (fd_blitter_pipe_copy_region(ctx,
dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box))
return;
/* else fallback to pure sw: */
util_resource_copy_region(pctx,
dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
}
/**
* Optimal hardware path for blitting pixels.
* Scaling, format conversion, up- and downsampling (resolve) are allowed.
*/
static void
fd_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
{
struct fd_context *ctx = fd_context(pctx);
struct pipe_blit_info info = *blit_info;
if (info.src.resource->nr_samples > 1 &&
info.dst.resource->nr_samples <= 1 &&
!util_format_is_depth_or_stencil(info.src.resource->format) &&
!util_format_is_pure_integer(info.src.resource->format)) {
DBG("color resolve unimplemented");
return;
}
if (util_try_blit_via_copy_region(pctx, &info)) {
return; /* done */
}
if (info.mask & PIPE_MASK_S) {
DBG("cannot blit stencil, skipping");
info.mask &= ~PIPE_MASK_S;
}
if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
DBG("blit unsupported %s -> %s",
util_format_short_name(info.src.resource->format),
util_format_short_name(info.dst.resource->format));
return;
}
fd_blitter_pipe_begin(ctx);
util_blitter_blit(ctx->blitter, &info);
fd_blitter_pipe_end(ctx);
}
static void
fd_blitter_pipe_begin(struct fd_context *ctx)
{
util_blitter_save_vertex_buffer_slot(ctx->blitter, ctx->vtx.vertexbuf.vb);
util_blitter_save_vertex_elements(ctx->blitter, ctx->vtx.vtx);
util_blitter_save_vertex_shader(ctx->blitter, ctx->prog.vp);
util_blitter_save_rasterizer(ctx->blitter, ctx->rasterizer);
util_blitter_save_viewport(ctx->blitter, &ctx->viewport);
util_blitter_save_scissor(ctx->blitter, &ctx->scissor);
util_blitter_save_fragment_shader(ctx->blitter, ctx->prog.fp);
util_blitter_save_blend(ctx->blitter, ctx->blend);
util_blitter_save_depth_stencil_alpha(ctx->blitter, ctx->zsa);
util_blitter_save_stencil_ref(ctx->blitter, &ctx->stencil_ref);
util_blitter_save_sample_mask(ctx->blitter, ctx->sample_mask);
util_blitter_save_framebuffer(ctx->blitter, &ctx->framebuffer);
util_blitter_save_fragment_sampler_states(ctx->blitter,
ctx->fragtex.num_samplers,
(void **)ctx->fragtex.samplers);
util_blitter_save_fragment_sampler_views(ctx->blitter,
ctx->fragtex.num_textures, ctx->fragtex.textures);
fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_BLIT);
}
static void
fd_blitter_pipe_end(struct fd_context *ctx)
{
fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_NULL);
}
static void
fd_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
{
struct fd_resource *rsc = fd_resource(prsc);
if (rsc->dirty || (rsc->stencil && rsc->stencil->dirty))
fd_context_render(pctx);
}
void
fd_resource_screen_init(struct pipe_screen *pscreen)
{
pscreen->resource_create = fd_resource_create;
pscreen->resource_from_handle = fd_resource_from_handle;
pscreen->resource_get_handle = u_resource_get_handle_vtbl;
pscreen->resource_destroy = u_resource_destroy_vtbl;
}
void
fd_resource_context_init(struct pipe_context *pctx)
{
pctx->transfer_map = u_transfer_map_vtbl;
pctx->transfer_flush_region = u_transfer_flush_region_vtbl;
pctx->transfer_unmap = u_transfer_unmap_vtbl;
pctx->transfer_inline_write = u_transfer_inline_write_vtbl;
pctx->create_surface = fd_create_surface;
pctx->surface_destroy = fd_surface_destroy;
pctx->resource_copy_region = fd_resource_copy_region;
pctx->blit = fd_blit;
pctx->flush_resource = fd_flush_resource;
}