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#include "pipe/p_winsys.h"
#include "pipe/p_defines.h"
#include "pipe/p_inlines.h"
#include "util/u_memory.h"
#include "nouveau_context.h"
#include "nouveau_local.h"
#include "nouveau_screen.h"
#include "nouveau_swapbuffers.h"
#include "nouveau_winsys_pipe.h"
static void
nouveau_flush_frontbuffer(struct pipe_winsys *pws, struct pipe_surface *surf,
void *context_private)
{
struct nouveau_context *nv = context_private;
dri_drawable_t *dri_drawable = nv->dri_drawable;
nouveau_copy_buffer(dri_drawable, surf, NULL);
}
static const char *
nouveau_get_name(struct pipe_winsys *pws)
{
return "Nouveau/DRI";
}
static struct pipe_surface *
nouveau_surface_alloc(struct pipe_winsys *ws)
{
struct pipe_surface *surf;
surf = CALLOC_STRUCT(pipe_surface);
if (!surf)
return NULL;
surf->refcount = 1;
surf->winsys = ws;
return surf;
}
/* Borrowed from Mesa's xm_winsys */
static unsigned int
round_up(unsigned n, unsigned multiple)
{
return (n + multiple - 1) & ~(multiple - 1);
}
static int
nouveau_surface_alloc_storage
(
struct pipe_winsys *pws,
struct pipe_surface *surface,
unsigned width,
unsigned height,
enum pipe_format format,
unsigned flags,
unsigned tex_usage
)
{
const unsigned int ALIGNMENT = 256;
assert(pws);
assert(surface);
surface->width = width;
surface->height = height;
surface->format = format;
pf_get_block(format, &surface->block);
surface->nblocksx = pf_get_nblocksx(&surface->block, width);
surface->nblocksy = pf_get_nblocksy(&surface->block, height);
surface->stride = round_up(surface->nblocksx * surface->block.size, ALIGNMENT);
surface->usage = flags;
surface->buffer = pws->buffer_create(pws, ALIGNMENT, PIPE_BUFFER_USAGE_PIXEL, surface->stride * surface->nblocksy);
return 0;
}
static void
nouveau_surface_release(struct pipe_winsys *ws, struct pipe_surface **s)
{
struct pipe_surface *surf = *s;
*s = NULL;
if (--surf->refcount <= 0) {
if (surf->buffer)
winsys_buffer_reference(ws, &surf->buffer, NULL);
free(surf);
}
}
static struct pipe_buffer *
nouveau_pipe_bo_create(struct pipe_winsys *pws, unsigned alignment,
unsigned usage, unsigned size)
{
struct nouveau_pipe_winsys *nvpws = (struct nouveau_pipe_winsys *)pws;
struct nouveau_context *nv = nvpws->nv;
struct nouveau_device *dev = nv->nv_screen->device;
struct nouveau_pipe_buffer *nvbuf;
uint32_t flags;
nvbuf = calloc(1, sizeof(*nvbuf));
if (!nvbuf)
return NULL;
nvbuf->base.refcount = 1;
nvbuf->base.alignment = alignment;
nvbuf->base.usage = usage;
nvbuf->base.size = size;
flags = NOUVEAU_BO_LOCAL;
if (usage & PIPE_BUFFER_USAGE_PIXEL) {
if (usage & NOUVEAU_BUFFER_USAGE_TEXTURE)
flags |= NOUVEAU_BO_GART;
if (!(usage & PIPE_BUFFER_USAGE_CPU_READ_WRITE))
flags |= NOUVEAU_BO_VRAM;
}
if (usage & PIPE_BUFFER_USAGE_VERTEX) {
if (nv->cap.hw_vertex_buffer)
flags |= NOUVEAU_BO_GART;
}
if (usage & PIPE_BUFFER_USAGE_INDEX) {
if (nv->cap.hw_index_buffer)
flags |= NOUVEAU_BO_GART;
}
if (nouveau_bo_new(dev, flags, alignment, size, &nvbuf->bo)) {
free(nvbuf);
return NULL;
}
return &nvbuf->base;
}
static struct pipe_buffer *
nouveau_pipe_bo_user_create(struct pipe_winsys *pws, void *ptr, unsigned bytes)
{
struct nouveau_pipe_winsys *nvpws = (struct nouveau_pipe_winsys *)pws;
struct nouveau_device *dev = nvpws->nv->nv_screen->device;
struct nouveau_pipe_buffer *nvbuf;
nvbuf = calloc(1, sizeof(*nvbuf));
if (!nvbuf)
return NULL;
nvbuf->base.refcount = 1;
nvbuf->base.size = bytes;
if (nouveau_bo_user(dev, ptr, bytes, &nvbuf->bo)) {
free(nvbuf);
return NULL;
}
return &nvbuf->base;
}
static void
nouveau_pipe_bo_del(struct pipe_winsys *ws, struct pipe_buffer *buf)
{
struct nouveau_pipe_buffer *nvbuf = nouveau_buffer(buf);
nouveau_bo_del(&nvbuf->bo);
free(nvbuf);
}
static void *
nouveau_pipe_bo_map(struct pipe_winsys *pws, struct pipe_buffer *buf,
unsigned flags)
{
struct nouveau_pipe_buffer *nvbuf = nouveau_buffer(buf);
uint32_t map_flags = 0;
if (flags & PIPE_BUFFER_USAGE_CPU_READ)
map_flags |= NOUVEAU_BO_RD;
if (flags & PIPE_BUFFER_USAGE_CPU_WRITE)
map_flags |= NOUVEAU_BO_WR;
if (nouveau_bo_map(nvbuf->bo, map_flags))
return NULL;
return nvbuf->bo->map;
}
static void
nouveau_pipe_bo_unmap(struct pipe_winsys *pws, struct pipe_buffer *buf)
{
struct nouveau_pipe_buffer *nvbuf = nouveau_buffer(buf);
nouveau_bo_unmap(nvbuf->bo);
}
static INLINE struct nouveau_fence *
nouveau_pipe_fence(struct pipe_fence_handle *pfence)
{
return (struct nouveau_fence *)pfence;
}
static void
nouveau_pipe_fence_reference(struct pipe_winsys *ws,
struct pipe_fence_handle **ptr,
struct pipe_fence_handle *pfence)
{
nouveau_fence_ref((void *)pfence, (void *)ptr);
}
static int
nouveau_pipe_fence_signalled(struct pipe_winsys *ws,
struct pipe_fence_handle *pfence, unsigned flag)
{
struct nouveau_pipe_winsys *nvpws = (struct nouveau_pipe_winsys *)ws;
struct nouveau_fence *fence = nouveau_pipe_fence(pfence);
if (nouveau_fence(fence)->signalled == 0)
nouveau_fence_flush(nvpws->nv->nvc->channel);
return !nouveau_fence(fence)->signalled;
}
static int
nouveau_pipe_fence_finish(struct pipe_winsys *ws,
struct pipe_fence_handle *pfence, unsigned flag)
{
struct nouveau_fence *fence = nouveau_pipe_fence(pfence);
struct nouveau_fence *ref = NULL;
nouveau_fence_ref(fence, &ref);
return nouveau_fence_wait(&ref);
}
struct pipe_winsys *
nouveau_create_pipe_winsys(struct nouveau_context *nv)
{
struct nouveau_pipe_winsys *nvpws;
struct pipe_winsys *pws;
nvpws = CALLOC_STRUCT(nouveau_pipe_winsys);
if (!nvpws)
return NULL;
nvpws->nv = nv;
pws = &nvpws->pws;
pws->flush_frontbuffer = nouveau_flush_frontbuffer;
pws->surface_alloc = nouveau_surface_alloc;
pws->surface_alloc_storage = nouveau_surface_alloc_storage;
pws->surface_release = nouveau_surface_release;
pws->buffer_create = nouveau_pipe_bo_create;
pws->buffer_destroy = nouveau_pipe_bo_del;
pws->user_buffer_create = nouveau_pipe_bo_user_create;
pws->buffer_map = nouveau_pipe_bo_map;
pws->buffer_unmap = nouveau_pipe_bo_unmap;
pws->fence_reference = nouveau_pipe_fence_reference;
pws->fence_signalled = nouveau_pipe_fence_signalled;
pws->fence_finish = nouveau_pipe_fence_finish;
pws->get_name = nouveau_get_name;
return &nvpws->pws;
}
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