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#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "util/u_inlines.h"
#include "util/u_format.h"
#include "util/u_memory.h"
#include "util/u_math.h"
#include "util/u_staging.h"
#include "state_tracker/drm_driver.h"
#include "nouveau/nouveau_winsys.h"
#include "nouveau/nouveau_screen.h"
#include "nvfx_screen.h"
#include "nvfx_resource.h"
#include "nvfx_transfer.h"
static void
nvfx_miptree_choose_format(struct nvfx_miptree *mt)
{
struct pipe_resource *pt = &mt->base.base;
unsigned uniform_pitch = 0;
static int no_swizzle = -1;
if(no_swizzle < 0)
no_swizzle = debug_get_bool_option("NOUVEAU_NO_SWIZZLE", FALSE);
/* Non-uniform pitch textures must be POT */
if (pt->width0 & (pt->width0 - 1) ||
pt->height0 & (pt->height0 - 1) ||
pt->depth0 & (pt->depth0 - 1)
)
uniform_pitch = 1;
/* All texture formats except compressed ones can be swizzled
* Unsure about depth, let's prevent swizzling for now
*/
if (
(pt->bind & (PIPE_BIND_SCANOUT | PIPE_BIND_DISPLAY_TARGET))
|| (pt->usage & PIPE_USAGE_DYNAMIC) || (pt->usage & PIPE_USAGE_STAGING)
|| util_format_is_depth_or_stencil(pt->format)
|| util_format_is_compressed(pt->format)
// disable swizzled textures on NV04-NV20 as our current drivers don't fully support that
// TODO: hardware should support them, fix the drivers and reenable
|| nouveau_screen(pt->screen)->device->chipset < 0x30
|| no_swizzle
// disable swizzling for non-RGBA 2D because our current 2D code can't handle anything
// else correctly, and even that is semi-broken
|| pt->target != PIPE_TEXTURE_2D
|| (pt->format != PIPE_FORMAT_B8G8R8A8_UNORM && pt->format != PIPE_FORMAT_B8G8R8X8_UNORM)
)
mt->base.base.flags |= NVFX_RESOURCE_FLAG_LINEAR;
/* non compressed formats with uniform pitch must be linear, and vice versa */
if(!util_format_is_s3tc(pt->format)
&& (uniform_pitch || mt->base.base.flags & NVFX_RESOURCE_FLAG_LINEAR))
{
mt->base.base.flags |= NVFX_RESOURCE_FLAG_LINEAR;
uniform_pitch = 1;
}
if(uniform_pitch)
{
mt->linear_pitch = util_format_get_stride(pt->format, pt->width0);
// TODO: this is only a constraint for rendering and not sampling, apparently
// we may also want this unconditionally
if(pt->bind & (PIPE_BIND_SAMPLER_VIEW |
PIPE_BIND_DEPTH_STENCIL |
PIPE_BIND_RENDER_TARGET |
PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_SCANOUT))
mt->linear_pitch = align(mt->linear_pitch, 64);
}
else
mt->linear_pitch = 0;
}
static unsigned
nvfx_miptree_layout(struct nvfx_miptree *mt)
{
struct pipe_resource* pt = &mt->base.base;
uint offset = 0;
if(!nvfx_screen(pt->screen)->is_nv4x)
{
assert(pt->target == PIPE_TEXTURE_RECT
|| (util_is_pot(pt->width0) && util_is_pot(pt->height0)));
}
for (unsigned l = 0; l <= pt->last_level; l++)
{
unsigned size;
mt->level_offset[l] = offset;
if(mt->linear_pitch)
size = mt->linear_pitch;
else
size = util_format_get_stride(pt->format, u_minify(pt->width0, l));
size = util_format_get_2d_size(pt->format, size, u_minify(pt->height0, l));
if(pt->target == PIPE_TEXTURE_3D)
size *= u_minify(pt->depth0, l);
offset += size;
}
offset = align(offset, 128);
mt->face_size = offset;
if(mt->base.base.target == PIPE_TEXTURE_CUBE)
offset += 5 * mt->face_size;
return offset;
}
static boolean
nvfx_miptree_get_handle(struct pipe_screen *pscreen,
struct pipe_resource *ptexture,
struct winsys_handle *whandle)
{
struct nvfx_miptree* mt = (struct nvfx_miptree*)ptexture;
if (!mt || !mt->base.bo)
return FALSE;
return nouveau_screen_bo_get_handle(pscreen,
mt->base.bo,
mt->linear_pitch,
whandle);
}
static void
nvfx_miptree_destroy(struct pipe_screen *screen, struct pipe_resource *pt)
{
struct nvfx_miptree *mt = (struct nvfx_miptree *)pt;
nouveau_screen_bo_release(screen, mt->base.bo);
FREE(mt);
}
struct u_resource_vtbl nvfx_miptree_vtbl =
{
nvfx_miptree_get_handle, /* get_handle */
nvfx_miptree_destroy, /* resource_destroy */
NULL, /* is_resource_referenced */
nvfx_transfer_new, /* get_transfer */
util_staging_transfer_destroy, /* transfer_destroy */
nvfx_transfer_map, /* transfer_map */
u_default_transfer_flush_region, /* transfer_flush_region */
nvfx_transfer_unmap, /* transfer_unmap */
u_default_transfer_inline_write /* transfer_inline_write */
};
static struct nvfx_miptree*
nvfx_miptree_create_skeleton(struct pipe_screen *pscreen, const struct pipe_resource *pt)
{
struct nvfx_miptree *mt;
if(pt->width0 > 4096 || pt->height0 > 4096)
return NULL;
mt = CALLOC_STRUCT(nvfx_miptree);
if (!mt)
return NULL;
mt->base.base = *pt;
mt->base.vtbl = &nvfx_miptree_vtbl;
pipe_reference_init(&mt->base.base.reference, 1);
mt->base.base.screen = pscreen;
// set this to the actual capabilities, we use it to decide whether to use the 3D engine for copies
// TODO: is this the correct way to use Gallium?
mt->base.base.bind = pt->bind | PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_DEPTH_STENCIL;
// on our current driver (and the driver too), format support does not depend on geometry, so don't bother computing it
// TODO: may want to revisit this
if(!pscreen->is_format_supported(pscreen, pt->format, pt->target, 0, PIPE_BIND_RENDER_TARGET, 0))
mt->base.base.bind &=~ PIPE_BIND_RENDER_TARGET;
if(!pscreen->is_format_supported(pscreen, pt->format, pt->target, 0, PIPE_BIND_SAMPLER_VIEW, 0))
mt->base.base.bind &=~ PIPE_BIND_SAMPLER_VIEW;
if(!pscreen->is_format_supported(pscreen, pt->format, pt->target, 0, PIPE_BIND_DEPTH_STENCIL, 0))
mt->base.base.bind &=~ PIPE_BIND_DEPTH_STENCIL;
return mt;
}
struct pipe_resource *
nvfx_miptree_create(struct pipe_screen *pscreen, const struct pipe_resource *pt)
{
struct nvfx_miptree* mt = nvfx_miptree_create_skeleton(pscreen, pt);
nvfx_miptree_choose_format(mt);
unsigned size = nvfx_miptree_layout(mt);
mt->base.bo = nouveau_screen_bo_new(pscreen, 256, pt->usage, pt->bind, size);
if (!mt->base.bo) {
FREE(mt);
return NULL;
}
return &mt->base.base;
}
// TODO: redo this, just calling miptree_layout
struct pipe_resource *
nvfx_miptree_from_handle(struct pipe_screen *pscreen, const struct pipe_resource *template, struct winsys_handle *whandle)
{
struct nvfx_miptree* mt = nvfx_miptree_create_skeleton(pscreen, template);
if(whandle->stride) {
mt->linear_pitch = whandle->stride;
mt->base.base.flags |= NVFX_RESOURCE_FLAG_LINEAR;
} else
nvfx_miptree_choose_format(mt);
nvfx_miptree_layout(mt);
unsigned stride;
mt->base.bo = nouveau_screen_bo_from_handle(pscreen, whandle, &stride);
if (mt->base.bo == NULL) {
FREE(mt);
return NULL;
}
return &mt->base.base;
}
/* Surface helpers, not strictly required to implement the resource vtbl:
*/
struct pipe_surface *
nvfx_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_resource *pt,
unsigned face, unsigned level, unsigned zslice,
unsigned flags)
{
struct nvfx_surface *ns;
ns = CALLOC_STRUCT(nvfx_surface);
if (!ns)
return NULL;
pipe_resource_reference(&ns->base.texture, pt);
ns->base.format = pt->format;
ns->base.width = u_minify(pt->width0, level);
ns->base.height = u_minify(pt->height0, level);
ns->base.usage = flags;
pipe_reference_init(&ns->base.reference, 1);
ns->base.face = face;
ns->base.level = level;
ns->base.zslice = zslice;
ns->pitch = nvfx_subresource_pitch(pt, level);
ns->base.offset = nvfx_subresource_offset(pt, face, level, zslice);
return &ns->base;
}
void
nvfx_miptree_surface_del(struct pipe_surface *ps)
{
pipe_resource_reference(&ps->texture, NULL);
FREE(ps);
}
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