diff options
Diffstat (limited to 'src/gallium/winsys/g3dvl/xsp_winsys.c')
| -rw-r--r-- | src/gallium/winsys/g3dvl/xsp_winsys.c | 290 |
1 files changed, 290 insertions, 0 deletions
diff --git a/src/gallium/winsys/g3dvl/xsp_winsys.c b/src/gallium/winsys/g3dvl/xsp_winsys.c new file mode 100644 index 0000000000..698c2856a4 --- /dev/null +++ b/src/gallium/winsys/g3dvl/xsp_winsys.c @@ -0,0 +1,290 @@ +#include "vl_winsys.h" +#include <X11/Xutil.h> +#include <pipe/internal/p_winsys_screen.h> +#include <pipe/p_state.h> +#include <pipe/p_inlines.h> +#include <util/u_memory.h> +#include <util/u_math.h> +#include <softpipe/sp_winsys.h> +#include <softpipe/sp_texture.h> + +/* pipe_winsys implementation */ + +struct xsp_pipe_winsys +{ + struct pipe_winsys base; + XImage fbimage; +}; + +struct xsp_context +{ + Display *display; + int screen; + Drawable drawable; + int drawable_bound; +}; + +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)); + pipe_reference_init(&buffer->base.reference, 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)); + pipe_reference_init(&buffer->base.reference, 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_buffer* xsp_surface_buffer_create +( + struct pipe_winsys *pws, + unsigned width, + unsigned height, + enum pipe_format format, + unsigned usage, + unsigned *stride +) +{ + const unsigned int ALIGNMENT = 1; + struct pipe_format_block block; + unsigned nblocksx, nblocksy; + + pf_get_block(format, &block); + nblocksx = pf_get_nblocksx(&block, width); + nblocksy = pf_get_nblocksy(&block, height); + *stride = align(nblocksx * block.size, ALIGNMENT); + + return pws->buffer_create(pws, ALIGNMENT, + usage, + *stride * nblocksy); +} + +static void xsp_fence_reference(struct pipe_winsys *pws, struct pipe_fence_handle **ptr, struct pipe_fence_handle *fence) +{ + assert(pws); + assert(ptr); + assert(fence); +} + +static int xsp_fence_signalled(struct pipe_winsys *pws, struct pipe_fence_handle *fence, unsigned flag) +{ + assert(pws); + assert(fence); + + return 0; +} + +static int xsp_fence_finish(struct pipe_winsys *pws, struct pipe_fence_handle *fence, unsigned flag) +{ + assert(pws); + assert(fence); + + return 0; +} + +static void xsp_flush_frontbuffer(struct pipe_winsys *pws, struct pipe_surface *surface, void *context_private) +{ + struct xsp_pipe_winsys *xsp_winsys; + struct xsp_context *xsp_context; + + assert(pws); + assert(surface); + assert(context_private); + + xsp_winsys = (struct xsp_pipe_winsys*)pws; + xsp_context = (struct xsp_context*)context_private; + + if (!xsp_context->drawable_bound) + return; + + 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 = ((struct xsp_buffer *)softpipe_texture(surface->texture)->buffer)->data + surface->offset; + + XPutImage + ( + xsp_context->display, + xsp_context->drawable, + XDefaultGC(xsp_context->display, xsp_context->screen), + &xsp_winsys->fbimage, + 0, + 0, + 0, + 0, + surface->width, + surface->height + ); + XFlush(xsp_context->display); +} + +static const char* xsp_get_name(struct pipe_winsys *pws) +{ + assert(pws); + return "X11 SoftPipe"; +} + +/* Show starts here */ + +int bind_pipe_drawable(struct pipe_context *pipe, Drawable drawable) +{ + struct xsp_context *xsp_context; + + assert(pipe); + + xsp_context = pipe->priv; + xsp_context->drawable = drawable; + xsp_context->drawable_bound = 1; + + return 0; +} + +int unbind_pipe_drawable(struct pipe_context *pipe) +{ + struct xsp_context *xsp_context; + + assert(pipe); + + xsp_context = pipe->priv; + xsp_context->drawable_bound = 0; + + return 0; +} + +struct pipe_context* create_pipe_context(Display *display, int screen) +{ + struct xsp_pipe_winsys *xsp_winsys; + struct xsp_context *xsp_context; + struct pipe_screen *sp_screen; + struct pipe_context *sp_pipe; + + 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_buffer_create = xsp_surface_buffer_create; + xsp_winsys->base.fence_reference = xsp_fence_reference; + xsp_winsys->base.fence_signalled = xsp_fence_signalled; + xsp_winsys->base.fence_finish = xsp_fence_finish; + xsp_winsys->base.flush_frontbuffer = xsp_flush_frontbuffer; + xsp_winsys->base.get_name = xsp_get_name; + + { + /* 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_screen = softpipe_create_screen((struct pipe_winsys*)xsp_winsys); + sp_pipe = softpipe_create(sp_screen); + + xsp_context = calloc(1, sizeof(struct xsp_context)); + xsp_context->display = display; + xsp_context->screen = screen; + + sp_pipe->priv = xsp_context; + + return sp_pipe; +} + +int destroy_pipe_context(struct pipe_context *pipe) +{ + struct pipe_screen *screen; + struct pipe_winsys *winsys; + + assert(pipe); + + screen = pipe->screen; + winsys = pipe->winsys; + free(pipe->priv); + pipe->destroy(pipe); + screen->destroy(screen); + free(winsys); + + return 0; +} |