diff options
Diffstat (limited to 'src/gallium/drivers/i965/brw_winsys.h')
| -rw-r--r-- | src/gallium/drivers/i965/brw_winsys.h | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965/brw_winsys.h b/src/gallium/drivers/i965/brw_winsys.h new file mode 100644 index 00000000000..2142db5a4db --- /dev/null +++ b/src/gallium/drivers/i965/brw_winsys.h @@ -0,0 +1,243 @@ +/************************************************************************** + * + * Copyright © 2009 Jakob Bornecrantz + * + * 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, sublicense, + * 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 NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS 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. + * + **************************************************************************/ + +#ifndef BRW_WINSYS_H +#define BRW_WINSYS_H + +#include "pipe/p_compiler.h" + +struct brw_winsys; +struct pipe_fence_handle; + +/* This currently just wraps dri_bo: + */ +struct brw_winsys_buffer { + struct brw_winsys_screen *sws; + void *bo; + unsigned offset; +}; + +enum brw_buffer_usage { + I915_GEM_DOMAIN_RENDER, + I915_GEM_DOMAIN_SAMPLER, + I915_GEM_DOMAIN_VERTEX, + I915_GEM_DOMAIN_INSTRUCTION, + + + /* XXX: migrate from domains to explicit usage cases, eg below: + */ + + /* use on textures */ + BRW_USAGE_RENDER = 0x01, + BRW_USAGE_SAMPLER = 0x02, + BRW_USAGE_2D_TARGET = 0x04, + BRW_USAGE_2D_SOURCE = 0x08, + /* use on vertex */ + BRW_USAGE_VERTEX = 0x10, +}; + +enum brw_buffer_type +{ + BRW_BUFFER_TYPE_TEXTURE, + BRW_BUFFER_TYPE_SCANOUT, /**< a texture used for scanning out from */ + BRW_BUFFER_TYPE_VERTEX, +}; + + +/* AKA winsys context: + */ +struct brw_batchbuffer { + + struct brw_winsys *iws; + struct brw_winsys_buffer *buf; + + /** + * Values exported to speed up the writing the batchbuffer, + * instead of having to go trough a accesor function for + * each dword written. + */ + /*{@*/ + uint8_t *map; + uint8_t *ptr; + size_t size; + + size_t relocs; + size_t max_relocs; + /*@}*/ +}; + +struct brw_winsys_screen { + + /** + * Batchbuffer functions. + */ + /*@{*/ + /** + * Create a new batchbuffer. + */ + struct brw_batchbuffer *(*batchbuffer_create)(struct brw_winsys_screen *iws); + + /** + * Emit a relocation to a buffer. + * Target position in batchbuffer is the same as ptr. + */ + int (*batchbuffer_reloc)(struct brw_batchbuffer *batch, + unsigned offset, + struct brw_winsys_buffer *reloc, + unsigned pre_add, + enum brw_buffer_usage usage); + + /** + * Flush a bufferbatch. + */ + void (*batchbuffer_flush)(struct brw_batchbuffer *batch, + struct pipe_fence_handle **fence); + + /** + * Destroy a batchbuffer. + */ + void (*batchbuffer_destroy)(struct brw_batchbuffer *batch); + /*@}*/ + + + /** + * Buffer functions. + */ + /*@{*/ + /** + * Create a buffer. + */ + struct brw_winsys_buffer *(*buffer_create)(struct brw_winsys *iws, + unsigned size, + unsigned alignment, + enum brw_buffer_type type); + + + /* Reference and unreference buffers: + */ + void (*bo_reference)( struct brw_winsys_buffer *buffer ); + void (*bo_unreference)( struct brw_winsys_buffer *buffer ); + void (*bo_emit_reloc)( struct brw_winsys_buffer *buffer, + unsigned domain, + unsigned a, + unsigned b, + unsigned offset, + struct brw_winsys_buffer *b2); + + /** + * Map a buffer. + */ + void *(*buffer_map)(struct brw_winsys *iws, + struct brw_winsys_buffer *buffer, + boolean write); + + /** + * Unmap a buffer. + */ + void (*buffer_unmap)(struct brw_winsys *iws, + struct brw_winsys_buffer *buffer); + + /** + * Write to a buffer. + * + * Arguments follows pipe_buffer_write. + */ + int (*buffer_write)(struct brw_winsys *iws, + struct brw_winsys_buffer *dst, + size_t offset, + size_t size, + const void *data); + + void (*buffer_destroy)(struct brw_winsys *iws, + struct brw_winsys_buffer *buffer); + /*@}*/ + + + /** + * Fence functions. + */ + /*@{*/ + /** + * Reference fence and set ptr to fence. + */ + void (*fence_reference)(struct brw_winsys *iws, + struct pipe_fence_handle **ptr, + struct pipe_fence_handle *fence); + + /** + * Check if a fence has finished. + */ + int (*fence_signalled)(struct brw_winsys *iws, + struct pipe_fence_handle *fence); + + /** + * Wait on a fence to finish. + */ + int (*fence_finish)(struct brw_winsys *iws, + struct pipe_fence_handle *fence); + /*@}*/ + + + /** + * Destroy the winsys. + */ + void (*destroy)(struct brw_winsys *iws); +}; + + +/** + * Create i915 pipe_screen. + */ +struct pipe_screen *i915_create_screen(struct brw_winsys *iws, unsigned pci_id); + +/** + * Create a i915 pipe_context. + */ +struct pipe_context *i915_create_context(struct pipe_screen *screen); + +/** + * Get the brw_winsys buffer backing the texture. + * + * TODO UGLY + */ +struct pipe_texture; +boolean i915_get_texture_buffer_brw(struct pipe_texture *texture, + struct brw_winsys_buffer **buffer, + unsigned *stride); + +/** + * Wrap a brw_winsys buffer with a texture blanket. + * + * TODO UGLY + */ +struct pipe_texture * i915_texture_blanket_brw(struct pipe_screen *screen, + struct pipe_texture *tmplt, + unsigned pitch, + struct brw_winsys_buffer *buffer); + + + + +#endif |