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/**************************************************************************
*
* 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
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