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#include "pipe/internal/p_winsys_screen.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_winsys_pipe.h"
static const char *
nouveau_get_name(struct pipe_winsys *pws)
{
return "Nouveau/DRI";
}
static uint32_t
nouveau_flags_from_usage(struct nouveau_context *nv, unsigned usage)
{
struct nouveau_device *dev = nv->nv_screen->device;
uint32_t 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;
switch (dev->chipset & 0xf0) {
case 0x50:
case 0x80:
case 0x90:
flags |= NOUVEAU_BO_TILED;
if (usage & NOUVEAU_BUFFER_USAGE_ZETA)
flags |= NOUVEAU_BO_ZTILE;
break;
default:
break;
}
}
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;
}
return flags;
}
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_STRUCT(nouveau_pipe_buffer);
if (!nvbuf)
return NULL;
nvbuf->base.refcount = 1;
nvbuf->base.alignment = alignment;
nvbuf->base.usage = usage;
nvbuf->base.size = size;
flags = nouveau_flags_from_usage(nv, usage);
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_STRUCT(nouveau_pipe_buffer);
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_ref(NULL, &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 0
if (flags & PIPE_BUFFER_USAGE_DISCARD &&
!(flags & PIPE_BUFFER_USAGE_CPU_READ) &&
nouveau_bo_busy(nvbuf->bo, map_flags)) {
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_bo *rename;
uint32_t flags = nouveau_flags_from_usage(nv, buf->usage);
if (!nouveau_bo_new(dev, flags, buf->alignment, buf->size, &rename)) {
nouveau_bo_ref(NULL, &nvbuf->bo);
nvbuf->bo = rename;
}
}
#endif
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 void
nouveau_pipe_fence_reference(struct pipe_winsys *ws,
struct pipe_fence_handle **ptr,
struct pipe_fence_handle *pfence)
{
*ptr = pfence;
}
static int
nouveau_pipe_fence_signalled(struct pipe_winsys *ws,
struct pipe_fence_handle *pfence, unsigned flag)
{
return 0;
}
static int
nouveau_pipe_fence_finish(struct pipe_winsys *ws,
struct pipe_fence_handle *pfence, unsigned flag)
{
return 0;
}
static void
nouveau_destroy(struct pipe_winsys *pws)
{
FREE(pws);
}
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->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;
pws->destroy = nouveau_destroy;
return &nvpws->pws;
}
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