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Diffstat (limited to 'mesalib/src/gallium/include/pipe/p_screen.h')
| -rw-r--r-- | mesalib/src/gallium/include/pipe/p_screen.h | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/mesalib/src/gallium/include/pipe/p_screen.h b/mesalib/src/gallium/include/pipe/p_screen.h new file mode 100644 index 000000000..ac885068a --- /dev/null +++ b/mesalib/src/gallium/include/pipe/p_screen.h @@ -0,0 +1,238 @@ +/************************************************************************** + * + * Copyright 2007 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * @file + * + * Screen, Adapter or GPU + * + * These are driver functions/facilities that are context independent. + */ + + +#ifndef P_SCREEN_H +#define P_SCREEN_H + + +#include "pipe/p_compiler.h" +#include "pipe/p_format.h" +#include "pipe/p_defines.h" +#include "pipe/p_video_enums.h" + + + +#ifdef __cplusplus +extern "C" { +#endif + + +/** Opaque types */ +struct winsys_handle; +struct pipe_fence_handle; +struct pipe_resource; +struct pipe_surface; +struct pipe_transfer; +struct pipe_box; + + +/** + * Gallium screen/adapter context. Basically everything + * hardware-specific that doesn't actually require a rendering + * context. + */ +struct pipe_screen { + void (*destroy)( struct pipe_screen * ); + + const char *(*get_name)( struct pipe_screen * ); + + const char *(*get_vendor)( struct pipe_screen * ); + + /** + * Query an integer-valued capability/parameter/limit + * \param param one of PIPE_CAP_x + */ + int (*get_param)( struct pipe_screen *, enum pipe_cap param ); + + /** + * Query a float-valued capability/parameter/limit + * \param param one of PIPE_CAP_x + */ + float (*get_paramf)( struct pipe_screen *, enum pipe_capf param ); + + /** + * Query a per-shader-stage integer-valued capability/parameter/limit + * \param param one of PIPE_CAP_x + */ + int (*get_shader_param)( struct pipe_screen *, unsigned shader, enum pipe_shader_cap param ); + + /** + * Query an integer-valued capability/parameter/limit for a codec/profile + * \param param one of PIPE_VIDEO_CAP_x + */ + int (*get_video_param)( struct pipe_screen *, + enum pipe_video_profile profile, + enum pipe_video_entrypoint entrypoint, + enum pipe_video_cap param ); + + /** + * Query a compute-specific capability/parameter/limit. + * \param param one of PIPE_COMPUTE_CAP_x + * \param ret pointer to a preallocated buffer that will be + * initialized to the parameter value, or NULL. + * \return size in bytes of the parameter value that would be + * returned. + */ + int (*get_compute_param)(struct pipe_screen *, + enum pipe_compute_cap param, + void *ret); + + /** + * Query a timestamp in nanoseconds. The returned value should match + * PIPE_QUERY_TIMESTAMP. This function returns immediately and doesn't + * wait for rendering to complete (which cannot be achieved with queries). + */ + uint64_t (*get_timestamp)(struct pipe_screen *); + + struct pipe_context * (*context_create)( struct pipe_screen *, + void *priv ); + + /** + * Check if the given pipe_format is supported as a texture or + * drawing surface. + * \param bindings bitmask of PIPE_BIND_* + */ + boolean (*is_format_supported)( struct pipe_screen *, + enum pipe_format format, + enum pipe_texture_target target, + unsigned sample_count, + unsigned bindings ); + + /** + * Check if the given pipe_format is supported as output for this codec/profile. + * \param profile profile to check, may also be PIPE_VIDEO_PROFILE_UNKNOWN + */ + boolean (*is_video_format_supported)( struct pipe_screen *, + enum pipe_format format, + enum pipe_video_profile profile, + enum pipe_video_entrypoint entrypoint ); + + /** + * Check if we can actually create the given resource (test the dimension, + * overall size, etc). Used to implement proxy textures. + * \return TRUE if size is OK, FALSE if too large. + */ + boolean (*can_create_resource)(struct pipe_screen *screen, + const struct pipe_resource *templat); + + /** + * Create a new texture object, using the given template info. + */ + struct pipe_resource * (*resource_create)(struct pipe_screen *, + const struct pipe_resource *templat); + + /** + * Create a texture from a winsys_handle. The handle is often created in + * another process by first creating a pipe texture and then calling + * resource_get_handle. + */ + struct pipe_resource * (*resource_from_handle)(struct pipe_screen *, + const struct pipe_resource *templat, + struct winsys_handle *handle); + + /** + * Create a resource from user memory. This maps the user memory into + * the device address space. + */ + struct pipe_resource * (*resource_from_user_memory)(struct pipe_screen *, + const struct pipe_resource *t, + void *user_memory); + + /** + * Get a winsys_handle from a texture. Some platforms/winsys requires + * that the texture is created with a special usage flag like + * DISPLAYTARGET or PRIMARY. + */ + boolean (*resource_get_handle)(struct pipe_screen *, + struct pipe_resource *tex, + struct winsys_handle *handle); + + + void (*resource_destroy)(struct pipe_screen *, + struct pipe_resource *pt); + + + /** + * Do any special operations to ensure frontbuffer contents are + * displayed, eg copy fake frontbuffer. + * \param winsys_drawable_handle an opaque handle that the calling context + * gets out-of-band + * \param subbox an optional sub region to flush + */ + void (*flush_frontbuffer)( struct pipe_screen *screen, + struct pipe_resource *resource, + unsigned level, unsigned layer, + void *winsys_drawable_handle, + struct pipe_box *subbox ); + + /** Set ptr = fence, with reference counting */ + void (*fence_reference)( struct pipe_screen *screen, + struct pipe_fence_handle **ptr, + struct pipe_fence_handle *fence ); + + /** + * Checks whether the fence has been signalled. + */ + boolean (*fence_signalled)( struct pipe_screen *screen, + struct pipe_fence_handle *fence ); + + /** + * Wait for the fence to finish. + * \param timeout in nanoseconds (may be PIPE_TIMEOUT_INFINITE). + */ + boolean (*fence_finish)( struct pipe_screen *screen, + struct pipe_fence_handle *fence, + uint64_t timeout ); + + /** + * Returns a driver-specific query. + * + * If \p info is NULL, the number of available queries is returned. + * Otherwise, the driver query at the specified \p index is returned + * in \p info. The function returns non-zero on success. + */ + int (*get_driver_query_info)(struct pipe_screen *screen, + unsigned index, + struct pipe_driver_query_info *info); + +}; + + +#ifdef __cplusplus +} +#endif + +#endif /* P_SCREEN_H */ |