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#include "xsp_winsys.h"
#include <X11/Xutil.h>
#include <pipe/p_winsys.h>
#include <pipe/p_state.h>
#include <pipe/p_util.h>
#include <pipe/p_inlines.h>
#include <softpipe/sp_winsys.h>
/* pipe_winsys implementation */
struct xsp_pipe_winsys
{
struct pipe_winsys base;
Display *display;
XImage fbimage;
};
struct xsp_buffer
{
struct pipe_buffer base;
boolean is_user_buffer;
void *data;
void *mapped_data;
};
static struct pipe_buffer* xsp_buffer_create(struct pipe_winsys *pws, unsigned alignment, unsigned usage, unsigned size)
{
struct xsp_buffer *buffer;
assert(pws);
buffer = calloc(1, sizeof(struct xsp_buffer));
buffer->base.refcount = 1;
buffer->base.alignment = alignment;
buffer->base.usage = usage;
buffer->base.size = size;
buffer->data = align_malloc(size, alignment);
return (struct pipe_buffer*)buffer;
}
static struct pipe_buffer* xsp_user_buffer_create(struct pipe_winsys *pws, void *data, unsigned size)
{
struct xsp_buffer *buffer;
assert(pws);
buffer = calloc(1, sizeof(struct xsp_buffer));
buffer->base.refcount = 1;
buffer->base.size = size;
buffer->is_user_buffer = TRUE;
buffer->data = data;
return (struct pipe_buffer*)buffer;
}
static void* xsp_buffer_map(struct pipe_winsys *pws, struct pipe_buffer *buffer, unsigned flags)
{
struct xsp_buffer *xsp_buf = (struct xsp_buffer*)buffer;
assert(pws);
assert(buffer);
xsp_buf->mapped_data = xsp_buf->data;
return xsp_buf->mapped_data;
}
static void xsp_buffer_unmap(struct pipe_winsys *pws, struct pipe_buffer *buffer)
{
struct xsp_buffer *xsp_buf = (struct xsp_buffer*)buffer;
assert(pws);
assert(buffer);
xsp_buf->mapped_data = NULL;
}
static void xsp_buffer_destroy(struct pipe_winsys *pws, struct pipe_buffer *buffer)
{
struct xsp_buffer *xsp_buf = (struct xsp_buffer*)buffer;
assert(pws);
assert(buffer);
if (!xsp_buf->is_user_buffer)
align_free(xsp_buf->data);
free(xsp_buf);
}
static struct pipe_surface* xsp_surface_alloc(struct pipe_winsys *pws)
{
struct pipe_surface *surface;
assert(pws);
surface = calloc(1, sizeof(struct pipe_surface));
surface->refcount = 1;
surface->winsys = pws;
return surface;
}
static int xsp_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 = 1;
assert(pws);
assert(surface);
surface->width = width;
surface->height = height;
surface->format = format;
surface->cpp = pf_get_size(format);
surface->pitch = width;
surface->usage = flags;
surface->buffer = pws->buffer_create(pws, ALIGNMENT, PIPE_BUFFER_USAGE_PIXEL, surface->pitch * surface->cpp * height);
return 0;
}
static void xsp_surface_release(struct pipe_winsys *pws, struct pipe_surface **surface)
{
struct pipe_surface *s;
assert(pws);
assert(surface);
assert(*surface);
s = *surface;
s->refcount--;
if (s->refcount == 0)
{
pipe_buffer_reference(pws, &s->buffer, NULL);
free(s);
}
*surface = NULL;
}
static void xsp_flush_frontbuffer(struct pipe_winsys *pws, struct pipe_surface *surface, void *context_private)
{
struct xsp_pipe_winsys *xsp_winsys;
assert(pws);
assert(surface);
assert(context_private);
xsp_winsys = (struct xsp_pipe_winsys*)pws;
xsp_winsys->fbimage.width = surface->width;
xsp_winsys->fbimage.height = surface->height;
xsp_winsys->fbimage.bytes_per_line = surface->width * (xsp_winsys->fbimage.bits_per_pixel >> 3);
xsp_winsys->fbimage.data = pipe_surface_map(surface, 0);
XPutImage
(
xsp_winsys->display,
*(Drawable*)context_private,
XDefaultGC(xsp_winsys->display, XDefaultScreen(xsp_winsys->display)),
&xsp_winsys->fbimage,
0,
0,
0,
0,
surface->width,
surface->height
);
XFlush(xsp_winsys->display);
pipe_surface_unmap(surface);
}
static const char* xsp_get_name(struct pipe_winsys *pws)
{
assert(pws);
return "X11 SoftPipe";
}
/* softpipe_winsys implementation */
static boolean xsp_is_format_supported(struct softpipe_winsys *spws, enum pipe_format format)
{
assert(spws);
/* TODO: Test that 'format' is equal to our output window's format */
return TRUE;
}
/* Show starts here */
struct pipe_context* create_pipe_context(Display *display)
{
struct xsp_pipe_winsys *xsp_winsys;
struct softpipe_winsys *sp_winsys;
struct pipe_screen *p_screen;
struct pipe_context *p_context;
assert(display);
xsp_winsys = calloc(1, sizeof(struct xsp_pipe_winsys));
xsp_winsys->base.buffer_create = xsp_buffer_create;
xsp_winsys->base.user_buffer_create = xsp_user_buffer_create;
xsp_winsys->base.buffer_map = xsp_buffer_map;
xsp_winsys->base.buffer_unmap = xsp_buffer_unmap;
xsp_winsys->base.buffer_destroy = xsp_buffer_destroy;
xsp_winsys->base.surface_alloc = xsp_surface_alloc;
xsp_winsys->base.surface_alloc_storage = xsp_surface_alloc_storage;
xsp_winsys->base.surface_release = xsp_surface_release;
xsp_winsys->base.flush_frontbuffer = xsp_flush_frontbuffer;
xsp_winsys->base.get_name = xsp_get_name;
xsp_winsys->display = display;
{
/* XXX: Can't use the returned XImage* directly,
since we don't have control over winsys destruction
and we wouldn't be able to free it */
XImage *template = XCreateImage
(
display,
XDefaultVisual(display, XDefaultScreen(display)),
XDefaultDepth(display, XDefaultScreen(display)),
ZPixmap,
0,
NULL,
0, /* Don't know the width and height until flush_frontbuffer */
0,
32,
0
);
memcpy(&xsp_winsys->fbimage, template, sizeof(XImage));
XInitImage(&xsp_winsys->fbimage);
XDestroyImage(template);
}
sp_winsys = calloc(1, sizeof(struct softpipe_winsys));
sp_winsys->is_format_supported = xsp_is_format_supported;
p_screen = softpipe_create_screen((struct pipe_winsys*)xsp_winsys);
p_context = softpipe_create(p_screen, (struct pipe_winsys*)xsp_winsys, sp_winsys);
return p_context;
}
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