From 25357696c3f253d44e83798e2a7e7f1f60c5adc5 Mon Sep 17 00:00:00 2001 From: José Fonseca Date: Tue, 2 Feb 2010 16:09:56 +0000 Subject: gallium: Move deprecated pipe/internal/p_winsys_screen.h inside util/u_simple_screen.h --- src/gallium/auxiliary/util/u_simple_screen.c | 2 +- src/gallium/auxiliary/util/u_simple_screen.h | 139 ++++++++++++++++++++++++++- src/gallium/auxiliary/util/u_timed_winsys.c | 2 +- 3 files changed, 140 insertions(+), 3 deletions(-) (limited to 'src/gallium/auxiliary') diff --git a/src/gallium/auxiliary/util/u_simple_screen.c b/src/gallium/auxiliary/util/u_simple_screen.c index 5238299015..53f3c16dbc 100644 --- a/src/gallium/auxiliary/util/u_simple_screen.c +++ b/src/gallium/auxiliary/util/u_simple_screen.c @@ -29,7 +29,7 @@ #include "pipe/p_screen.h" #include "pipe/p_state.h" -#include "pipe/internal/p_winsys_screen.h" +#include "util/u_simple_screen.h" static struct pipe_buffer * diff --git a/src/gallium/auxiliary/util/u_simple_screen.h b/src/gallium/auxiliary/util/u_simple_screen.h index 6612a8a7c0..bb3f5ba102 100644 --- a/src/gallium/auxiliary/util/u_simple_screen.h +++ b/src/gallium/auxiliary/util/u_simple_screen.h @@ -28,8 +28,145 @@ #ifndef U_SIMPLE_SCREEN_H #define U_SIMPLE_SCREEN_H +#include "pipe/p_format.h" + struct pipe_screen; -struct pipe_winsys; +struct pipe_fence_handle; +struct pipe_surface; +struct pipe_buffer; + +/** + * Gallium3D drivers are (meant to be!) independent of both GL and the + * window system. The window system provides a buffer manager and a + * set of additional hooks for things like command buffer submission, + * etc. + * + * There clearly has to be some agreement between the window system + * driver and the hardware driver about the format of command buffers, + * etc. + */ +struct pipe_winsys +{ + void (*destroy)( struct pipe_winsys *ws ); + + /** Returns name of this winsys interface */ + const char *(*get_name)( struct pipe_winsys *ws ); + + /** + * Do any special operations to ensure buffer size is correct + */ + void (*update_buffer)( struct pipe_winsys *ws, + void *context_private ); + /** + * Do any special operations to ensure frontbuffer contents are + * displayed, eg copy fake frontbuffer. + */ + void (*flush_frontbuffer)( struct pipe_winsys *ws, + struct pipe_surface *surf, + void *context_private ); + + + /** + * Buffer management. Buffer attributes are mostly fixed over its lifetime. + * + * Remember that gallium gets to choose the interface it needs, and the + * window systems must then implement that interface (rather than the + * other way around...). + * + * usage is a bitmask of PIPE_BUFFER_USAGE_PIXEL/VERTEX/INDEX/CONSTANT. This + * usage argument is only an optimization hint, not a guarantee, therefore + * proper behavior must be observed in all circumstances. + * + * alignment indicates the client's alignment requirements, eg for + * SSE instructions. + */ + struct pipe_buffer *(*buffer_create)( struct pipe_winsys *ws, + unsigned alignment, + unsigned usage, + unsigned size ); + + /** + * Create a buffer that wraps user-space data. + * + * Effectively this schedules a delayed call to buffer_create + * followed by an upload of the data at *some point in the future*, + * or perhaps never. Basically the allocate/upload is delayed + * until the buffer is actually passed to hardware. + * + * The intention is to provide a quick way to turn regular data + * into a buffer, and secondly to avoid a copy operation if that + * data subsequently turns out to be only accessed by the CPU. + * + * Common example is OpenGL vertex buffers that are subsequently + * processed either by software TNL in the driver or by passing to + * hardware. + * + * XXX: What happens if the delayed call to buffer_create() fails? + * + * Note that ptr may be accessed at any time upto the time when the + * buffer is destroyed, so the data must not be freed before then. + */ + struct pipe_buffer *(*user_buffer_create)(struct pipe_winsys *ws, + void *ptr, + unsigned bytes); + + /** + * Allocate storage for a display target surface. + * + * Often surfaces which are meant to be blitted to the front screen (i.e., + * display targets) must be allocated with special characteristics, memory + * pools, or obtained directly from the windowing system. + * + * This callback is invoked by the pipe_screenwhen creating a texture marked + * with the PIPE_TEXTURE_USAGE_DISPLAY_TARGET flag to get the underlying + * buffer storage. + */ + struct pipe_buffer *(*surface_buffer_create)(struct pipe_winsys *ws, + unsigned width, unsigned height, + enum pipe_format format, + unsigned usage, + unsigned tex_usage, + unsigned *stride); + + + /** + * Map the entire data store of a buffer object into the client's address. + * flags is bitmask of PIPE_BUFFER_USAGE_CPU_READ/WRITE flags. + */ + void *(*buffer_map)( struct pipe_winsys *ws, + struct pipe_buffer *buf, + unsigned usage ); + + void (*buffer_unmap)( struct pipe_winsys *ws, + struct pipe_buffer *buf ); + + void (*buffer_destroy)( struct pipe_buffer *buf ); + + + /** Set ptr = fence, with reference counting */ + void (*fence_reference)( struct pipe_winsys *ws, + struct pipe_fence_handle **ptr, + struct pipe_fence_handle *fence ); + + /** + * Checks whether the fence has been signalled. + * \param flags driver-specific meaning + * \return zero on success. + */ + int (*fence_signalled)( struct pipe_winsys *ws, + struct pipe_fence_handle *fence, + unsigned flag ); + + /** + * Wait for the fence to finish. + * \param flags driver-specific meaning + * \return zero on success. + */ + int (*fence_finish)( struct pipe_winsys *ws, + struct pipe_fence_handle *fence, + unsigned flag ); + +}; /** * The following function initializes a simple passthrough screen. diff --git a/src/gallium/auxiliary/util/u_timed_winsys.c b/src/gallium/auxiliary/util/u_timed_winsys.c index 178acdca4d..59bdcd2c45 100644 --- a/src/gallium/auxiliary/util/u_timed_winsys.c +++ b/src/gallium/auxiliary/util/u_timed_winsys.c @@ -30,7 +30,7 @@ */ #include "pipe/p_state.h" -#include "pipe/internal/p_winsys_screen.h" +#include "util/u_simple_screen.h" #include "u_timed_winsys.h" #include "util/u_memory.h" #include "util/u_time.h" -- cgit v1.2.3