diff options
author | Younes Manton <younes.m@gmail.com> | 2009-09-27 20:18:02 -0400 |
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committer | Younes Manton <younes.m@gmail.com> | 2009-09-27 20:18:02 -0400 |
commit | e44c85637a3298918e292e9ddba812856cf92924 (patch) | |
tree | 25e881754374bebd8123fa51d889c070489a3320 /src/gallium/winsys/g3dvl/xlib/xsp_winsys.c | |
parent | f547472bfa0a797adacc2a7688b4c1ba65381a80 (diff) |
g3dvl: Implement XvMC using pipe_video_context.
Diffstat (limited to 'src/gallium/winsys/g3dvl/xlib/xsp_winsys.c')
-rw-r--r-- | src/gallium/winsys/g3dvl/xlib/xsp_winsys.c | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/src/gallium/winsys/g3dvl/xlib/xsp_winsys.c b/src/gallium/winsys/g3dvl/xlib/xsp_winsys.c new file mode 100644 index 0000000000..37eee79c5d --- /dev/null +++ b/src/gallium/winsys/g3dvl/xlib/xsp_winsys.c @@ -0,0 +1,307 @@ +#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_video_context.h> +#include <softpipe/sp_texture.h> + +/* pipe_winsys implementation */ + +struct xsp_pipe_winsys +{ + struct pipe_winsys base; + Display *display; + int screen; + XImage *fbimage; +}; + +struct xsp_context +{ + Drawable drawable; + + void (*pipe_destroy)(struct pipe_video_context *vpipe); +}; + +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_buffer *buffer) +{ + struct xsp_buffer *xsp_buf = (struct xsp_buffer*)buffer; + + 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 tex_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; + 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 = (char*)((struct xsp_buffer *)softpipe_texture(surface->texture)->buffer)->data + surface->offset; + + XPutImage + ( + xsp_winsys->display, xsp_context->drawable, + XDefaultGC(xsp_winsys->display, xsp_winsys->screen), + xsp_winsys->fbimage, 0, 0, 0, 0, + surface->width, surface->height + ); + XFlush(xsp_winsys->display); +} + +static const char* xsp_get_name(struct pipe_winsys *pws) +{ + assert(pws); + return "X11 SoftPipe"; +} + +static void xsp_destroy(struct pipe_winsys *pws) +{ + struct xsp_pipe_winsys *xsp_winsys = (struct xsp_pipe_winsys*)pws; + + assert(pws); + + /* XDestroyImage() wants to free the data as well */ + xsp_winsys->fbimage->data = NULL; + + XDestroyImage(xsp_winsys->fbimage); + FREE(xsp_winsys); +} + +/* Called through pipe_video_context::destroy() */ +static void xsp_pipe_destroy(struct pipe_video_context *vpipe) +{ + struct xsp_context *xsp_context; + + assert(vpipe); + + xsp_context = vpipe->priv; + + /* Call the original destroy */ + xsp_context->pipe_destroy(vpipe); + + FREE(xsp_context); +} + +/* Show starts here */ + +Drawable +vl_video_bind_drawable(struct pipe_video_context *vpipe, Drawable drawable) +{ + struct xsp_context *xsp_context; + Drawable old_drawable; + + assert(vpipe); + + xsp_context = vpipe->priv; + old_drawable = xsp_context->drawable; + xsp_context->drawable = drawable; + + return old_drawable; +} + +struct pipe_screen* +vl_screen_create(Display *display, int screen) +{ + struct xsp_pipe_winsys *xsp_winsys; + + assert(display); + + xsp_winsys = CALLOC_STRUCT(xsp_pipe_winsys); + if (!xsp_winsys) + return NULL; + + 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; + xsp_winsys->base.destroy = xsp_destroy; + xsp_winsys->display = display; + xsp_winsys->screen = screen; + xsp_winsys->fbimage = XCreateImage + ( + display, + XDefaultVisual(display, screen), + XDefaultDepth(display, screen), + ZPixmap, + 0, + NULL, + 0, /* Don't know the width and height until flush_frontbuffer */ + 0, + 32, + 0 + ); + + if (!xsp_winsys->fbimage) + { + FREE(xsp_winsys); + return NULL; + } + + XInitImage(xsp_winsys->fbimage); + + return softpipe_create_screen(&xsp_winsys->base); +} + +struct pipe_video_context* +vl_video_create(struct pipe_screen *screen, + enum pipe_video_profile profile, + enum pipe_video_chroma_format chroma_format, + unsigned width, unsigned height) +{ + struct pipe_video_context *vpipe; + struct xsp_context *xsp_context; + + assert(screen); + assert(width && height); + + vpipe = sp_video_create(screen, profile, chroma_format, width, height); + if (!vpipe) + return NULL; + + xsp_context = CALLOC_STRUCT(xsp_context); + if (!xsp_context) + { + vpipe->destroy(vpipe); + return NULL; + } + + /* Override this so we can free our xsp_context when the pipe is freed */ + xsp_context->pipe_destroy = vpipe->destroy; + vpipe->destroy = xsp_pipe_destroy; + + vpipe->priv = xsp_context; + + return vpipe; +} |