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#include "util/u_inlines.h"
#include "util/u_memory.h"
#include "util/u_math.h"
#include "nouveau/nouveau_screen.h"
#include "nouveau/nouveau_winsys.h"
#include "nvfx_resource.h"
#include "nvfx_screen.h"
void nvfx_buffer_destroy(struct pipe_screen *pscreen,
struct pipe_resource *presource)
{
struct nvfx_buffer *buffer = nvfx_buffer(presource);
if(!(buffer->base.base.flags & NVFX_RESOURCE_FLAG_USER))
align_free(buffer->data);
nouveau_screen_bo_release(pscreen, buffer->base.bo);
FREE(buffer);
}
struct pipe_resource *
nvfx_buffer_create(struct pipe_screen *pscreen,
const struct pipe_resource *template)
{
struct nvfx_screen* screen = nvfx_screen(pscreen);
struct nvfx_buffer* buffer;
buffer = CALLOC_STRUCT(nvfx_buffer);
if (!buffer)
return NULL;
buffer->base.base = *template;
buffer->base.base.flags |= NOUVEAU_RESOURCE_FLAG_LINEAR;
pipe_reference_init(&buffer->base.base.reference, 1);
buffer->base.base.screen = pscreen;
buffer->size = util_format_get_stride(template->format, template->width0);
buffer->bytes_to_draw_until_static = buffer->size * screen->static_reuse_threshold;
buffer->data = align_malloc(buffer->size, 16);
return &buffer->base.base;
}
struct pipe_resource *
nvfx_user_buffer_create(struct pipe_screen *pscreen,
void *ptr,
unsigned bytes,
unsigned usage)
{
struct nvfx_screen* screen = nvfx_screen(pscreen);
struct nvfx_buffer* buffer;
buffer = CALLOC_STRUCT(nvfx_buffer);
if (!buffer)
return NULL;
pipe_reference_init(&buffer->base.base.reference, 1);
buffer->base.base.flags =
NOUVEAU_RESOURCE_FLAG_LINEAR | NVFX_RESOURCE_FLAG_USER;
buffer->base.base.screen = pscreen;
buffer->base.base.format = PIPE_FORMAT_R8_UNORM;
buffer->base.base.usage = PIPE_USAGE_IMMUTABLE;
buffer->base.base.bind = usage;
buffer->base.base.width0 = bytes;
buffer->base.base.height0 = 1;
buffer->base.base.depth0 = 1;
buffer->base.base.array_size = 1;
buffer->data = ptr;
buffer->size = bytes;
buffer->bytes_to_draw_until_static = bytes * screen->static_reuse_threshold;
buffer->dirty_end = bytes;
return &buffer->base.base;
}
void nvfx_buffer_upload(struct nvfx_buffer* buffer)
{
unsigned dirty = buffer->dirty_end - buffer->dirty_begin;
if(!buffer->base.bo)
{
buffer->base.bo = nouveau_screen_bo_new(buffer->base.base.screen,
16,
buffer->base.base.usage,
buffer->base.base.bind,
buffer->base.base.width0);
}
if(dirty)
{
// TODO: may want to use a temporary in some cases
nouveau_bo_map(buffer->base.bo, NOUVEAU_BO_WR
| (buffer->dirty_unsynchronized ? NOUVEAU_BO_NOSYNC : 0));
memcpy((uint8_t*)buffer->base.bo->map + buffer->dirty_begin, buffer->data + buffer->dirty_begin, dirty);
nouveau_bo_unmap(buffer->base.bo);
buffer->dirty_begin = buffer->dirty_end = 0;
}
}
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