diff options
Diffstat (limited to 'src/gallium/drivers/i915/intel_winsys.h')
| -rw-r--r-- | src/gallium/drivers/i915/intel_winsys.h | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915/intel_winsys.h b/src/gallium/drivers/i915/intel_winsys.h new file mode 100644 index 00000000000..42c5e7470ec --- /dev/null +++ b/src/gallium/drivers/i915/intel_winsys.h @@ -0,0 +1,230 @@ +/************************************************************************** + * + * 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 INTEL_WINSYS_H +#define INTEL_WINSYS_H + +#include "pipe/p_compiler.h" + +struct intel_winsys; +struct intel_buffer; +struct intel_batchbuffer; +struct pipe_texture; +struct pipe_fence_handle; + +enum intel_buffer_usage +{ + /* use on textures */ + INTEL_USAGE_RENDER = 0x01, + INTEL_USAGE_SAMPLER = 0x02, + INTEL_USAGE_2D_TARGET = 0x04, + INTEL_USAGE_2D_SOURCE = 0x08, + /* use on vertex */ + INTEL_USAGE_VERTEX = 0x10, +}; + +enum intel_buffer_type +{ + INTEL_NEW_TEXTURE, + INTEL_NEW_SCANOUT, /**< a texture used for scanning out from */ + INTEL_NEW_VERTEX, +}; + +enum intel_buffer_tile +{ + INTEL_TILE_NONE, + INTEL_TILE_X, + INTEL_TILE_Y, +}; + +struct intel_batchbuffer { + + struct intel_winsys *iws; + + /** + * 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 intel_winsys { + + /** + * Batchbuffer functions. + */ + /*@{*/ + /** + * Create a new batchbuffer. + */ + struct intel_batchbuffer *(*batchbuffer_create)(struct intel_winsys *iws); + + /** + * Emit a relocation to a buffer. + * Target position in batchbuffer is the same as ptr. + * + * @batch + * @reloc buffer address to be inserted into target. + * @usage how is the hardware going to use the buffer. + * @offset add this to the reloc buffers address + * @target buffer where to write the address, null for batchbuffer. + */ + int (*batchbuffer_reloc)(struct intel_batchbuffer *batch, + struct intel_buffer *reloc, + enum intel_buffer_usage usage, + unsigned offset); + + /** + * Flush a bufferbatch. + */ + void (*batchbuffer_flush)(struct intel_batchbuffer *batch, + struct pipe_fence_handle **fence); + + /** + * Destroy a batchbuffer. + */ + void (*batchbuffer_destroy)(struct intel_batchbuffer *batch); + /*@}*/ + + + /** + * Buffer functions. + */ + /*@{*/ + /** + * Create a buffer. + */ + struct intel_buffer *(*buffer_create)(struct intel_winsys *iws, + unsigned size, unsigned alignment, + enum intel_buffer_type type); + + /** + * Fence a buffer with a fence reg. + * Not to be confused with pipe_fence_handle. + */ + int (*buffer_set_fence_reg)(struct intel_winsys *iws, + struct intel_buffer *buffer, + unsigned stride, + enum intel_buffer_tile tile); + + /** + * Map a buffer. + */ + void *(*buffer_map)(struct intel_winsys *iws, + struct intel_buffer *buffer, + boolean write); + + /** + * Unmap a buffer. + */ + void (*buffer_unmap)(struct intel_winsys *iws, + struct intel_buffer *buffer); + + /** + * Write to a buffer. + * + * Arguments follows pwrite(2) + */ + int (*buffer_write)(struct intel_winsys *iws, + struct intel_buffer *dst, + const void *src, + size_t size, + size_t offset); + + void (*buffer_destroy)(struct intel_winsys *iws, + struct intel_buffer *buffer); + /*@}*/ + + + /** + * Fence functions. + */ + /*@{*/ + /** + * Reference fence and set ptr to fence. + */ + void (*fence_reference)(struct intel_winsys *iws, + struct pipe_fence_handle **ptr, + struct pipe_fence_handle *fence); + + /** + * Check if a fence has finished. + */ + int (*fence_signalled)(struct intel_winsys *iws, + struct pipe_fence_handle *fence); + + /** + * Wait on a fence to finish. + */ + int (*fence_finish)(struct intel_winsys *iws, + struct pipe_fence_handle *fence); + /*@}*/ + + + /** + * Destroy the winsys. + */ + void (*destroy)(struct intel_winsys *iws); +}; + + +/** + * Create i915 pipe_screen. + */ +struct pipe_screen *i915_create_screen(struct intel_winsys *iws, unsigned pci_id); + +/** + * Create a i915 pipe_context. + */ +struct pipe_context *i915_create_context(struct pipe_screen *screen); + +/** + * Get the intel_winsys buffer backing the texture. + * + * TODO UGLY + */ +boolean i915_get_texture_buffer_intel(struct pipe_texture *texture, + struct intel_buffer **buffer, + unsigned *stride); + +/** + * Wrap a intel_winsys buffer with a texture blanket. + * + * TODO UGLY + */ +struct pipe_texture * i915_texture_blanket_intel(struct pipe_screen *screen, + struct pipe_texture *tmplt, + unsigned pitch, + struct intel_buffer *buffer); + +#endif |