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|
/*
* Copyright © 2014-2017 Broadcom
* 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.
*/
#include "util/u_blit.h"
#include "util/u_memory.h"
#include "util/u_format.h"
#include "util/u_inlines.h"
#include "util/u_surface.h"
#include "util/u_upload_mgr.h"
#include "drm_fourcc.h"
#include "vc5_screen.h"
#include "vc5_context.h"
#include "vc5_resource.h"
#include "vc5_tiling.h"
#include "broadcom/cle/v3d_packet_v33_pack.h"
#ifndef DRM_FORMAT_MOD_INVALID
#define DRM_FORMAT_MOD_INVALID ((1ULL << 56) - 1)
#endif
static bool
vc5_resource_bo_alloc(struct vc5_resource *rsc)
{
struct pipe_resource *prsc = &rsc->base.b;
struct pipe_screen *pscreen = prsc->screen;
struct vc5_bo *bo;
int layers = (prsc->target == PIPE_TEXTURE_3D ?
prsc->depth0 : prsc->array_size);
bo = vc5_bo_alloc(vc5_screen(pscreen),
rsc->slices[0].offset +
rsc->slices[0].size +
rsc->cube_map_stride * layers - 1,
"resource");
if (bo) {
DBG(V3D_DEBUG_SURFACE, "alloc %p @ 0x%08x:\n", rsc, bo->offset);
vc5_bo_unreference(&rsc->bo);
rsc->bo = bo;
return true;
} else {
return false;
}
}
static void
vc5_resource_transfer_unmap(struct pipe_context *pctx,
struct pipe_transfer *ptrans)
{
struct vc5_context *vc5 = vc5_context(pctx);
struct vc5_transfer *trans = vc5_transfer(ptrans);
if (trans->map) {
struct vc5_resource *rsc;
struct vc5_resource_slice *slice;
if (trans->ss_resource) {
rsc = vc5_resource(trans->ss_resource);
slice = &rsc->slices[0];
} else {
rsc = vc5_resource(ptrans->resource);
slice = &rsc->slices[ptrans->level];
}
if (ptrans->usage & PIPE_TRANSFER_WRITE) {
vc5_store_tiled_image(rsc->bo->map + slice->offset +
ptrans->box.z * rsc->cube_map_stride,
slice->stride,
trans->map, ptrans->stride,
slice->tiling, rsc->cpp,
rsc->base.b.height0,
&ptrans->box);
}
free(trans->map);
}
if (trans->ss_resource && (ptrans->usage & PIPE_TRANSFER_WRITE)) {
struct pipe_blit_info blit;
memset(&blit, 0, sizeof(blit));
blit.src.resource = trans->ss_resource;
blit.src.format = trans->ss_resource->format;
blit.src.box.width = trans->ss_box.width;
blit.src.box.height = trans->ss_box.height;
blit.src.box.depth = 1;
blit.dst.resource = ptrans->resource;
blit.dst.format = ptrans->resource->format;
blit.dst.level = ptrans->level;
blit.dst.box = trans->ss_box;
blit.mask = util_format_get_mask(ptrans->resource->format);
blit.filter = PIPE_TEX_FILTER_NEAREST;
pctx->blit(pctx, &blit);
pipe_resource_reference(&trans->ss_resource, NULL);
}
pipe_resource_reference(&ptrans->resource, NULL);
slab_free(&vc5->transfer_pool, ptrans);
}
static struct pipe_resource *
vc5_get_temp_resource(struct pipe_context *pctx,
struct pipe_resource *prsc,
const struct pipe_box *box)
{
struct pipe_resource temp_setup;
memset(&temp_setup, 0, sizeof(temp_setup));
temp_setup.target = prsc->target;
temp_setup.format = prsc->format;
temp_setup.width0 = box->width;
temp_setup.height0 = box->height;
temp_setup.depth0 = 1;
temp_setup.array_size = 1;
return pctx->screen->resource_create(pctx->screen, &temp_setup);
}
static void *
vc5_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 vc5_context *vc5 = vc5_context(pctx);
struct vc5_resource *rsc = vc5_resource(prsc);
struct vc5_transfer *trans;
struct pipe_transfer *ptrans;
enum pipe_format format = prsc->format;
char *buf;
/* Upgrade DISCARD_RANGE to WHOLE_RESOURCE if the whole resource is
* being mapped.
*/
if ((usage & PIPE_TRANSFER_DISCARD_RANGE) &&
!(usage & PIPE_TRANSFER_UNSYNCHRONIZED) &&
!(prsc->flags & PIPE_RESOURCE_FLAG_MAP_COHERENT) &&
prsc->last_level == 0 &&
prsc->width0 == box->width &&
prsc->height0 == box->height &&
prsc->depth0 == box->depth &&
prsc->array_size == 1 &&
rsc->bo->private) {
usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
}
if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
if (vc5_resource_bo_alloc(rsc)) {
/* If it might be bound as one of our vertex buffers
* or UBOs, make sure we re-emit vertex buffer state
* or uniforms.
*/
if (prsc->bind & PIPE_BIND_VERTEX_BUFFER)
vc5->dirty |= VC5_DIRTY_VTXBUF;
if (prsc->bind & PIPE_BIND_CONSTANT_BUFFER)
vc5->dirty |= VC5_DIRTY_CONSTBUF;
} else {
/* If we failed to reallocate, flush users so that we
* don't violate any syncing requirements.
*/
vc5_flush_jobs_reading_resource(vc5, prsc);
}
} else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
/* If we're writing and the buffer is being used by the CL, we
* have to flush the CL first. If we're only reading, we need
* to flush if the CL has written our buffer.
*/
if (usage & PIPE_TRANSFER_WRITE)
vc5_flush_jobs_reading_resource(vc5, prsc);
else
vc5_flush_jobs_writing_resource(vc5, prsc);
}
if (usage & PIPE_TRANSFER_WRITE) {
rsc->writes++;
rsc->initialized_buffers = ~0;
}
trans = slab_alloc(&vc5->transfer_pool);
if (!trans)
return NULL;
/* XXX: Handle DONTBLOCK, DISCARD_RANGE, PERSISTENT, COHERENT. */
/* slab_alloc_st() doesn't zero: */
memset(trans, 0, sizeof(*trans));
ptrans = &trans->base;
pipe_resource_reference(&ptrans->resource, prsc);
ptrans->level = level;
ptrans->usage = usage;
ptrans->box = *box;
/* If the resource is multisampled, we need to resolve to single
* sample. This seems like it should be handled at a higher layer.
*/
if (prsc->nr_samples > 1) {
trans->ss_resource = vc5_get_temp_resource(pctx, prsc, box);
if (!trans->ss_resource)
goto fail;
assert(!trans->ss_resource->nr_samples);
/* The ptrans->box gets modified for tile alignment, so save
* the original box for unmap time.
*/
trans->ss_box = *box;
if (usage & PIPE_TRANSFER_READ) {
struct pipe_blit_info blit;
memset(&blit, 0, sizeof(blit));
blit.src.resource = ptrans->resource;
blit.src.format = ptrans->resource->format;
blit.src.level = ptrans->level;
blit.src.box = trans->ss_box;
blit.dst.resource = trans->ss_resource;
blit.dst.format = trans->ss_resource->format;
blit.dst.box.width = trans->ss_box.width;
blit.dst.box.height = trans->ss_box.height;
blit.dst.box.depth = 1;
blit.mask = util_format_get_mask(prsc->format);
blit.filter = PIPE_TEX_FILTER_NEAREST;
pctx->blit(pctx, &blit);
vc5_flush_jobs_writing_resource(vc5, blit.dst.resource);
}
/* The rest of the mapping process should use our temporary. */
prsc = trans->ss_resource;
rsc = vc5_resource(prsc);
ptrans->box.x = 0;
ptrans->box.y = 0;
ptrans->box.z = 0;
}
/* Note that the current kernel implementation is synchronous, so no
* need to do syncing stuff here yet.
*/
if (usage & PIPE_TRANSFER_UNSYNCHRONIZED)
buf = vc5_bo_map_unsynchronized(rsc->bo);
else
buf = vc5_bo_map(rsc->bo);
if (!buf) {
fprintf(stderr, "Failed to map bo\n");
goto fail;
}
*pptrans = ptrans;
struct vc5_resource_slice *slice = &rsc->slices[level];
if (rsc->tiled) {
/* No direct mappings of tiled, since we need to manually
* tile/untile.
*/
if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
return NULL;
ptrans->stride = ptrans->box.width * rsc->cpp;
ptrans->layer_stride = ptrans->stride * ptrans->box.height;
trans->map = malloc(ptrans->layer_stride * ptrans->box.depth);
if (usage & PIPE_TRANSFER_READ) {
vc5_load_tiled_image(trans->map, ptrans->stride,
buf + slice->offset +
ptrans->box.z * rsc->cube_map_stride,
slice->stride,
slice->tiling, rsc->cpp,
rsc->base.b.height0,
&ptrans->box);
}
return trans->map;
} else {
ptrans->stride = slice->stride;
ptrans->layer_stride = ptrans->stride;
return buf + slice->offset +
ptrans->box.y / util_format_get_blockheight(format) * ptrans->stride +
ptrans->box.x / util_format_get_blockwidth(format) * rsc->cpp +
ptrans->box.z * rsc->cube_map_stride;
}
fail:
vc5_resource_transfer_unmap(pctx, ptrans);
return NULL;
}
static void
vc5_resource_destroy(struct pipe_screen *pscreen,
struct pipe_resource *prsc)
{
struct vc5_resource *rsc = vc5_resource(prsc);
vc5_bo_unreference(&rsc->bo);
free(rsc);
}
static boolean
vc5_resource_get_handle(struct pipe_screen *pscreen,
struct pipe_resource *prsc,
struct winsys_handle *whandle)
{
struct vc5_resource *rsc = vc5_resource(prsc);
struct vc5_bo *bo = rsc->bo;
whandle->stride = rsc->slices[0].stride;
/* If we're passing some reference to our BO out to some other part of
* the system, then we can't do any optimizations about only us being
* the ones seeing it (like BO caching).
*/
bo->private = false;
switch (whandle->type) {
case DRM_API_HANDLE_TYPE_SHARED:
return vc5_bo_flink(bo, &whandle->handle);
case DRM_API_HANDLE_TYPE_KMS:
whandle->handle = bo->handle;
return TRUE;
case DRM_API_HANDLE_TYPE_FD:
whandle->handle = vc5_bo_get_dmabuf(bo);
return whandle->handle != -1;
}
return FALSE;
}
static const struct u_resource_vtbl vc5_resource_vtbl = {
.resource_get_handle = vc5_resource_get_handle,
.resource_destroy = vc5_resource_destroy,
.transfer_map = vc5_resource_transfer_map,
.transfer_flush_region = u_default_transfer_flush_region,
.transfer_unmap = vc5_resource_transfer_unmap,
};
static void
vc5_setup_slices(struct vc5_resource *rsc, const char *caller)
{
struct pipe_resource *prsc = &rsc->base.b;
uint32_t width = prsc->width0;
uint32_t height = prsc->height0;
uint32_t pot_width = util_next_power_of_two(width);
uint32_t pot_height = util_next_power_of_two(height);
uint32_t offset = 0;
uint32_t utile_w = vc5_utile_width(rsc->cpp);
uint32_t utile_h = vc5_utile_height(rsc->cpp);
uint32_t uif_block_w = utile_w * 2;
uint32_t uif_block_h = utile_h * 2;
bool uif_top = false;
for (int i = prsc->last_level; i >= 0; i--) {
struct vc5_resource_slice *slice = &rsc->slices[i];
uint32_t level_width, level_height;
if (i < 2) {
level_width = u_minify(width, i);
level_height = u_minify(height, i);
} else {
level_width = u_minify(pot_width, i);
level_height = u_minify(pot_height, i);
}
if (!rsc->tiled) {
slice->tiling = VC5_TILING_RASTER;
if (prsc->nr_samples > 1) {
/* MSAA (4x) surfaces are stored as raw tile buffer contents. */
level_width = align(level_width, 32);
level_height = align(level_height, 32);
}
} else {
if ((i != 0 || !uif_top) &&
(level_width <= utile_w ||
level_height <= utile_h)) {
slice->tiling = VC5_TILING_LINEARTILE;
level_width = align(level_width, utile_w);
level_height = align(level_height, utile_h);
} else if ((i != 0 || !uif_top) &&
level_width <= uif_block_w) {
slice->tiling = VC5_TILING_UBLINEAR_1_COLUMN;
level_width = align(level_width, uif_block_w);
level_height = align(level_height, uif_block_h);
} else if ((i != 0 || !uif_top) &&
level_width <= 2 * uif_block_w) {
slice->tiling = VC5_TILING_UBLINEAR_2_COLUMN;
level_width = align(level_width, 2 * uif_block_w);
level_height = align(level_height, uif_block_h);
} else {
slice->tiling = VC5_TILING_UIF_NO_XOR;
level_width = align(level_width,
4 * uif_block_w);
level_height = align(level_height,
4 * uif_block_h);
}
}
slice->offset = offset;
slice->stride = (level_width * rsc->cpp *
MAX2(prsc->nr_samples, 1));
slice->size = level_height * slice->stride;
offset += slice->size;
if (V3D_DEBUG & V3D_DEBUG_SURFACE) {
static const char *const tiling_descriptions[] = {
[VC5_TILING_RASTER] = "R",
[VC5_TILING_LINEARTILE] = "LT",
[VC5_TILING_UBLINEAR_1_COLUMN] = "UB1",
[VC5_TILING_UBLINEAR_2_COLUMN] = "UB2",
[VC5_TILING_UIF_NO_XOR] = "UIF",
[VC5_TILING_UIF_XOR] = "UIF^",
};
fprintf(stderr,
"rsc %s %p (format %s), %dx%d: "
"level %d (%s) %dx%d -> %dx%d, stride %d@0x%08x\n",
caller, rsc,
util_format_short_name(prsc->format),
prsc->width0, prsc->height0,
i, tiling_descriptions[slice->tiling],
u_minify(prsc->width0, i),
u_minify(prsc->height0, i),
level_width, level_height,
slice->stride, slice->offset);
}
}
/* UIF/UBLINEAR levels need to be aligned to UIF-blocks, and LT only
* needs to be aligned to utile boundaries. Since tiles are laid out
* from small to big in memory, we need to align the later UIF slices
* to UIF blocks, if they were preceded by non-UIF-block-aligned LT
* slices.
*
* We additionally align to 4k, which improves UIF XOR performance.
*/
uint32_t page_align_offset = (align(rsc->slices[0].offset, 4096) -
rsc->slices[0].offset);
if (page_align_offset) {
for (int i = 0; i <= prsc->last_level; i++)
rsc->slices[i].offset += page_align_offset;
}
/* Arrays, cubes, and 3D textures have a stride which is the distance
* from one full mipmap tree to the next (64b aligned).
*/
rsc->cube_map_stride = align(rsc->slices[0].offset +
rsc->slices[0].size, 64);
}
static struct vc5_resource *
vc5_resource_setup(struct pipe_screen *pscreen,
const struct pipe_resource *tmpl)
{
struct vc5_resource *rsc = CALLOC_STRUCT(vc5_resource);
if (!rsc)
return NULL;
struct pipe_resource *prsc = &rsc->base.b;
*prsc = *tmpl;
pipe_reference_init(&prsc->reference, 1);
prsc->screen = pscreen;
rsc->base.vtbl = &vc5_resource_vtbl;
if (prsc->nr_samples <= 1)
rsc->cpp = util_format_get_blocksize(tmpl->format);
else
rsc->cpp = sizeof(uint32_t);
assert(rsc->cpp);
return rsc;
}
static bool
find_modifier(uint64_t needle, const uint64_t *haystack, int count)
{
int i;
for (i = 0; i < count; i++) {
if (haystack[i] == needle)
return true;
}
return false;
}
static struct pipe_resource *
vc5_resource_create_with_modifiers(struct pipe_screen *pscreen,
const struct pipe_resource *tmpl,
const uint64_t *modifiers,
int count)
{
bool linear_ok = find_modifier(DRM_FORMAT_MOD_LINEAR, modifiers, count);
struct vc5_resource *rsc = vc5_resource_setup(pscreen, tmpl);
struct pipe_resource *prsc = &rsc->base.b;
/* Use a tiled layout if we can, for better 3D performance. */
bool should_tile = true;
/* VBOs/PBOs are untiled (and 1 height). */
if (tmpl->target == PIPE_BUFFER)
should_tile = false;
/* Cursors are always linear, and the user can request linear as well.
*/
if (tmpl->bind & (PIPE_BIND_LINEAR | PIPE_BIND_CURSOR))
should_tile = false;
/* Scanout BOs for simulator need to be linear for interaction with
* i965.
*/
if (using_vc5_simulator &&
tmpl->bind & (PIPE_BIND_SHARED | PIPE_BIND_SCANOUT))
should_tile = false;
/* No user-specified modifier; determine our own. */
if (count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID) {
linear_ok = true;
rsc->tiled = should_tile;
} else if (should_tile &&
find_modifier(DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED,
modifiers, count)) {
rsc->tiled = true;
} else if (linear_ok) {
rsc->tiled = false;
} else {
fprintf(stderr, "Unsupported modifier requested\n");
return NULL;
}
if (tmpl->target != PIPE_BUFFER)
rsc->tex_format = vc5_get_tex_format(prsc->format);
vc5_setup_slices(rsc, "create");
if (!vc5_resource_bo_alloc(rsc))
goto fail;
return prsc;
fail:
vc5_resource_destroy(pscreen, prsc);
return NULL;
}
struct pipe_resource *
vc5_resource_create(struct pipe_screen *pscreen,
const struct pipe_resource *tmpl)
{
const uint64_t mod = DRM_FORMAT_MOD_INVALID;
return vc5_resource_create_with_modifiers(pscreen, tmpl, &mod, 1);
}
static struct pipe_resource *
vc5_resource_from_handle(struct pipe_screen *pscreen,
const struct pipe_resource *tmpl,
struct winsys_handle *whandle,
unsigned usage)
{
struct vc5_screen *screen = vc5_screen(pscreen);
struct vc5_resource *rsc = vc5_resource_setup(pscreen, tmpl);
struct pipe_resource *prsc = &rsc->base.b;
struct vc5_resource_slice *slice = &rsc->slices[0];
if (!rsc)
return NULL;
switch (whandle->modifier) {
case DRM_FORMAT_MOD_LINEAR:
rsc->tiled = false;
break;
/* XXX: UIF */
default:
fprintf(stderr,
"Attempt to import unsupported modifier 0x%llx\n",
(long long)whandle->modifier);
goto fail;
}
if (whandle->offset != 0) {
fprintf(stderr,
"Attempt to import unsupported winsys offset %u\n",
whandle->offset);
goto fail;
}
switch (whandle->type) {
case DRM_API_HANDLE_TYPE_SHARED:
rsc->bo = vc5_bo_open_name(screen,
whandle->handle, whandle->stride);
break;
case DRM_API_HANDLE_TYPE_FD:
rsc->bo = vc5_bo_open_dmabuf(screen,
whandle->handle, whandle->stride);
break;
default:
fprintf(stderr,
"Attempt to import unsupported handle type %d\n",
whandle->type);
goto fail;
}
if (!rsc->bo)
goto fail;
vc5_setup_slices(rsc, "import");
rsc->tex_format = vc5_get_tex_format(prsc->format);
DBG(V3D_DEBUG_SURFACE,
"rsc import %p (format %s), %dx%d: "
"level 0 (R) -> stride %d@0x%08x\n",
rsc, util_format_short_name(prsc->format),
prsc->width0, prsc->height0,
slice->stride, slice->offset);
if (whandle->stride != slice->stride) {
static bool warned = false;
if (!warned) {
warned = true;
fprintf(stderr,
"Attempting to import %dx%d %s with "
"unsupported stride %d instead of %d\n",
prsc->width0, prsc->height0,
util_format_short_name(prsc->format),
whandle->stride,
slice->stride);
}
goto fail;
}
return prsc;
fail:
vc5_resource_destroy(pscreen, prsc);
return NULL;
}
static struct pipe_surface *
vc5_create_surface(struct pipe_context *pctx,
struct pipe_resource *ptex,
const struct pipe_surface *surf_tmpl)
{
struct vc5_surface *surface = CALLOC_STRUCT(vc5_surface);
struct vc5_resource *rsc = vc5_resource(ptex);
if (!surface)
return NULL;
assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
struct pipe_surface *psurf = &surface->base;
unsigned level = surf_tmpl->u.tex.level;
pipe_reference_init(&psurf->reference, 1);
pipe_resource_reference(&psurf->texture, ptex);
psurf->context = pctx;
psurf->format = surf_tmpl->format;
psurf->width = u_minify(ptex->width0, level);
psurf->height = u_minify(ptex->height0, level);
psurf->u.tex.level = level;
psurf->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
psurf->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
surface->offset = (rsc->slices[level].offset +
psurf->u.tex.first_layer * rsc->cube_map_stride);
surface->tiling = rsc->slices[level].tiling;
surface->format = vc5_get_rt_format(psurf->format);
if (util_format_is_depth_or_stencil(psurf->format)) {
switch (psurf->format) {
case PIPE_FORMAT_Z16_UNORM:
surface->internal_type = INTERNAL_TYPE_DEPTH_16;
break;
case PIPE_FORMAT_Z32_FLOAT:
case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
surface->internal_type = INTERNAL_TYPE_DEPTH_32F;
break;
default:
surface->internal_type = INTERNAL_TYPE_DEPTH_24;
}
} else {
uint32_t bpp, type;
vc5_get_internal_type_bpp_for_output_format(surface->format,
&type, &bpp);
surface->internal_type = type;
surface->internal_bpp = bpp;
}
return &surface->base;
}
static void
vc5_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
{
pipe_resource_reference(&psurf->texture, NULL);
FREE(psurf);
}
static void
vc5_flush_resource(struct pipe_context *pctx, struct pipe_resource *resource)
{
/* All calls to flush_resource are followed by a flush of the context,
* so there's nothing to do.
*/
}
void
vc5_resource_screen_init(struct pipe_screen *pscreen)
{
pscreen->resource_create_with_modifiers =
vc5_resource_create_with_modifiers;
pscreen->resource_create = vc5_resource_create;
pscreen->resource_from_handle = vc5_resource_from_handle;
pscreen->resource_get_handle = u_resource_get_handle_vtbl;
pscreen->resource_destroy = u_resource_destroy_vtbl;
}
void
vc5_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->buffer_subdata = u_default_buffer_subdata;
pctx->texture_subdata = u_default_texture_subdata;
pctx->create_surface = vc5_create_surface;
pctx->surface_destroy = vc5_surface_destroy;
pctx->resource_copy_region = util_resource_copy_region;
pctx->blit = vc5_blit;
pctx->flush_resource = vc5_flush_resource;
}
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