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#include "cpuwinsys.h"
#include "pipe/internal/p_winsys_screen.h"
#include "pipe/p_format.h"
#include "pipe/p_context.h"
#include "pipe/p_inlines.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#ifdef GALLIUM_CELL
#include "cell/ppu/cell_context.h"
#include "cell/ppu/cell_screen.h"
#include "cell/ppu/cell_winsys.h"
#else
#define TILE_SIZE 32 /* avoid compilation errors */
#endif
/**
* Subclass of pipe_winsys for Xlib winsys
*/
struct cpu_winsys {
struct pipe_winsys base;
};
/**
* Subclass of pipe_buffer for CL winsys.
* Low-level OS/window system memory buffer
*/
struct cpu_buffer
{
struct pipe_buffer base;
boolean userBuffer; /** Is this a user-space buffer? */
void *data;
void *mapped;
};
/** Cast wrapper */
static INLINE struct cpu_buffer *
cpu_buffer(struct pipe_buffer *buf)
{
return (struct cpu_buffer *)buf;
}
/* Most callbacks map direcly onto dri_bufmgr operations:
*/
static void *
cpu_buffer_map(struct pipe_winsys *pws, struct pipe_buffer *buf,
unsigned flags)
{
struct cpu_buffer *cpu_buf = cpu_buffer(buf);
cpu_buf->mapped = cpu_buf->data;
return cpu_buf->mapped;
}
static void
cpu_buffer_unmap(struct pipe_winsys *pws, struct pipe_buffer *buf)
{
struct cpu_buffer *cpu_buf = cpu_buffer(buf);
cpu_buf->mapped = NULL;
}
static void
cpu_buffer_destroy(struct pipe_winsys *pws,
struct pipe_buffer *buf)
{
struct cpu_buffer *oldBuf = cpu_buffer(buf);
if (oldBuf->data) {
if (!oldBuf->userBuffer) {
align_free(oldBuf->data);
}
oldBuf->data = NULL;
}
free(oldBuf);
}
static void
cpu_flush_frontbuffer(struct pipe_winsys *pws,
struct pipe_surface *surf,
void *context_private)
{
/*### do nothing? */
}
static const char *
cpu_get_name(struct pipe_winsys *pws)
{
return "OpenCL CPU";
}
static struct pipe_buffer *
cpu_buffer_create(struct pipe_winsys *pws,
unsigned alignment,
unsigned usage,
unsigned size)
{
struct cpu_buffer *buffer = CALLOC_STRUCT(cpu_buffer);
buffer->base.alignment = alignment;
buffer->base.usage = usage;
buffer->base.size = size;
if (buffer->data == NULL) {
/* align to 16-byte multiple for Cell */
buffer->data = align_malloc(size, MAX2(alignment, 16));
}
return &buffer->base;
}
/**
* Create buffer which wraps user-space data.
*/
static struct pipe_buffer *
cpu_user_buffer_create(struct pipe_winsys *pws, void *ptr, unsigned bytes)
{
struct cpu_buffer *buffer = CALLOC_STRUCT(cpu_buffer);
buffer->base.size = bytes;
buffer->userBuffer = TRUE;
buffer->data = ptr;
return &buffer->base;
}
/**
* Round n up to next multiple.
*/
static INLINE unsigned
round_up(unsigned n, unsigned multiple)
{
return (n + multiple - 1) & ~(multiple - 1);
}
static int
cpu_surface_alloc_storage(struct pipe_winsys *winsys,
struct pipe_surface *surf,
unsigned width, unsigned height,
enum pipe_format format,
unsigned flags,
unsigned tex_usage)
{
const unsigned alignment = 64;
surf->width = width;
surf->height = height;
surf->format = format;
surf->usage = flags;
return 0;
}
/**
* Called via winsys->surface_alloc() to create new surfaces.
*/
static struct pipe_surface *
cpu_surface_alloc(struct pipe_winsys *ws)
{
struct pipe_surface *surface = CALLOC_STRUCT(pipe_surface);
assert(ws);
return surface;
}
static void
cpu_surface_release(struct pipe_winsys *winsys, struct pipe_surface **s)
{
struct pipe_surface *surf = *s;
assert(!surf->texture);
*s = NULL;
}
/*
* Fence functions - basically nothing to do, as we don't create any actual
* fence objects.
*/
static void
cpu_fence_reference(struct pipe_winsys *sws, struct pipe_fence_handle **ptr,
struct pipe_fence_handle *fence)
{
}
static int
cpu_fence_signalled(struct pipe_winsys *sws, struct pipe_fence_handle *fence,
unsigned flag)
{
return 0;
}
static int
cpu_fence_finish(struct pipe_winsys *sws, struct pipe_fence_handle *fence,
unsigned flag)
{
return 0;
}
struct pipe_winsys * cpu_winsys(void)
{
static struct cpu_winsys *ws = NULL;
if (!ws) {
ws = CALLOC_STRUCT(cpu_winsys);
/* Fill in this struct with callbacks that pipe will need to
* communicate with the buffer manager, etc.
*/
ws->base.buffer_create = cpu_buffer_create;
ws->base.user_buffer_create = cpu_user_buffer_create;
ws->base.buffer_map = cpu_buffer_map;
ws->base.buffer_unmap = cpu_buffer_unmap;
ws->base.fence_reference = cpu_fence_reference;
ws->base.fence_signalled = cpu_fence_signalled;
ws->base.fence_finish = cpu_fence_finish;
ws->base.flush_frontbuffer = cpu_flush_frontbuffer;
ws->base.get_name = cpu_get_name;
}
return &ws->base;
}
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