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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"
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("NV40_NO_SWIZZLE", FALSE); /* this will break things on nv30 */
if (!util_is_pot(pt->width0) ||
!util_is_pot(pt->height0) ||
!util_is_pot(pt->depth0) ||
(!nvfx_screen(pt->screen)->is_nv4x && pt->target == PIPE_TEXTURE_RECT)
)
uniform_pitch = 1;
if (
(pt->bind & (PIPE_BIND_SCANOUT | PIPE_BIND_DISPLAY_TARGET))
|| (pt->usage & PIPE_USAGE_DYNAMIC) || (pt->usage & PIPE_USAGE_STAGING)
|| util_format_is_compressed(pt->format)
|| no_swizzle
)
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 void
nvfx_miptree_surface_final_destroy(struct pipe_surface* ps)
{
struct nvfx_surface* ns = (struct nvfx_surface*)ps;
pipe_resource_reference(&ps->texture, 0);
pipe_resource_reference((struct pipe_resource**)&ns->temp, 0);
FREE(ps);
}
void
nvfx_miptree_destroy(struct pipe_screen *screen, struct pipe_resource *pt)
{
struct nvfx_miptree *mt = (struct nvfx_miptree *)pt;
util_surfaces_destroy(&mt->surfaces, pt, nvfx_miptree_surface_final_destroy);
nouveau_screen_bo_release(screen, mt->base.bo);
FREE(mt);
}
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;
util_dirty_surfaces_init(&mt->dirty_surfaces);
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);
unsigned size;
nvfx_miptree_choose_format(mt);
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);
unsigned stride;
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);
mt->base.bo = nouveau_screen_bo_from_handle(pscreen, whandle, &stride);
if (mt->base.bo == NULL) {
FREE(mt);
return NULL;
}
return &mt->base.base;
}
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_miptree* mt = (struct nvfx_miptree*)pt;
struct nvfx_surface *ns;
ns = (struct nvfx_surface*)util_surfaces_get(&mt->surfaces, sizeof(struct nvfx_surface), pscreen, pt, face, level, zslice, flags);
if(ns->base.base.offset == ~0) {
util_dirty_surface_init(&ns->base);
ns->pitch = nvfx_subresource_pitch(pt, level);
ns->base.base.offset = nvfx_subresource_offset(pt, face, level, zslice);
}
return &ns->base.base;
}
void
nvfx_miptree_surface_del(struct pipe_surface *ps)
{
struct nvfx_surface* ns = (struct nvfx_surface*)ps;
if(!ns->temp)
{
util_surfaces_detach(&((struct nvfx_miptree*)ps->texture)->surfaces, ps);
pipe_resource_reference(&ps->texture, 0);
FREE(ps);
}
}
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