diff options
Diffstat (limited to 'src/gallium/drivers/i965simple/brw_winsys.h')
| -rw-r--r-- | src/gallium/drivers/i965simple/brw_winsys.h | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965simple/brw_winsys.h b/src/gallium/drivers/i965simple/brw_winsys.h new file mode 100644 index 00000000000..ec1e400418f --- /dev/null +++ b/src/gallium/drivers/i965simple/brw_winsys.h @@ -0,0 +1,209 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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 TUNGSTEN GRAPHICS 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 + * This is the interface that i965simple requires any window system + * hosting it to implement. This is the only include file in i965simple + * which is public. + * + */ + +#ifndef BRW_WINSYS_H +#define BRW_WINSYS_H + + +#include "pipe/p_defines.h" + + +/* Pipe 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_buffer; +struct pipe_fence_handle; +struct pipe_winsys; +struct pipe_screen; + + +/* The pipe driver currently understands the following chipsets: + */ +#define PCI_CHIP_I965_G 0x29A2 +#define PCI_CHIP_I965_Q 0x2992 +#define PCI_CHIP_I965_G_1 0x2982 +#define PCI_CHIP_I965_GM 0x2A02 +#define PCI_CHIP_I965_GME 0x2A12 + + +/* These are the names of all the state caches managed by the driver. + * + * When data is uploaded to a buffer with buffer_subdata, we use the + * special version of that function below so that information about + * what type of data this is can be passed to the winsys backend. + * That in turn allows the correct flags to be set in the aub file + * dump to allow human-readable file dumps later on. + */ + +enum brw_cache_id { + BRW_CC_VP, + BRW_CC_UNIT, + BRW_WM_PROG, + BRW_SAMPLER_DEFAULT_COLOR, + BRW_SAMPLER, + BRW_WM_UNIT, + BRW_SF_PROG, + BRW_SF_VP, + BRW_SF_UNIT, + BRW_VS_UNIT, + BRW_VS_PROG, + BRW_GS_UNIT, + BRW_GS_PROG, + BRW_CLIP_VP, + BRW_CLIP_UNIT, + BRW_CLIP_PROG, + BRW_SS_SURFACE, + BRW_SS_SURF_BIND, + + BRW_MAX_CACHE +}; + +#define BRW_CONSTANT_BUFFER BRW_MAX_CACHE + +/** + * Additional winsys interface for i965simple. + * + * It is an over-simple batchbuffer mechanism. Will want to improve the + * performance of this, perhaps based on the cmdstream stuff. It + * would be pretty impossible to implement swz on top of this + * interface. + * + * Will also need additions/changes to implement static/dynamic + * indirect state. + */ +struct brw_winsys { + + void (*destroy)(struct brw_winsys *); + + /** + * Reserve space on batch buffer. + * + * Returns a null pointer if there is insufficient space in the batch buffer + * to hold the requested number of dwords and relocations. + * + * The number of dwords should also include the number of relocations. + */ + unsigned *(*batch_start)(struct brw_winsys *sws, + unsigned dwords, + unsigned relocs); + + void (*batch_dword)(struct brw_winsys *sws, + unsigned dword); + + /** + * Emit a relocation to a buffer. + * + * Used not only when the buffer addresses are not pinned, but also to + * ensure refered buffers will not be destroyed until the current batch + * buffer execution is finished. + * + * The access flags is a combination of I915_BUFFER_ACCESS_WRITE and + * I915_BUFFER_ACCESS_READ macros. + */ + void (*batch_reloc)(struct brw_winsys *sws, + struct pipe_buffer *buf, + unsigned access_flags, + unsigned delta); + + + /* Not used yet, but really want this: + */ + void (*batch_end)( struct brw_winsys *sws ); + + /** + * Flush the batch buffer. + * + * Fence argument must point to NULL or to a previous fence, and the caller + * must call fence_reference when done with the fence. + */ + void (*batch_flush)(struct brw_winsys *sws, + struct pipe_fence_handle **fence); + + + /* A version of buffer_subdata that includes information for the + * simulator: + */ + void (*buffer_subdata_typed)(struct brw_winsys *sws, + struct pipe_buffer *buf, + unsigned long offset, + unsigned long size, + const void *data, + unsigned data_type); + + + /* A cheat so we don't have to think about relocations in a couple + * of places yet: + */ + unsigned (*get_buffer_offset)( struct brw_winsys *sws, + struct pipe_buffer *buf, + unsigned flags ); + +}; + +#define BRW_BUFFER_ACCESS_WRITE 0x1 +#define BRW_BUFFER_ACCESS_READ 0x2 + +#define BRW_BUFFER_USAGE_LIT_VERTEX (PIPE_BUFFER_USAGE_CUSTOM << 0) + + +struct pipe_context *brw_create(struct pipe_screen *, + struct brw_winsys *, + unsigned pci_id); + +static inline boolean brw_batchbuffer_data(struct brw_winsys *winsys, + const void *data, + unsigned bytes) +{ + static const unsigned incr = sizeof(unsigned); + uint i; + const unsigned *udata = (const unsigned*)(data); + unsigned size = bytes/incr; + + winsys->batch_start(winsys, size, 0); + for (i = 0; i < size; ++i) { + winsys->batch_dword(winsys, udata[i]); + } + winsys->batch_end(winsys); + + return (i == size); +} +#endif |