diff options
Diffstat (limited to 'src/mesa/drivers/dri/intel_winsys/intel_pipe_i915simple.c')
| -rw-r--r-- | src/mesa/drivers/dri/intel_winsys/intel_pipe_i915simple.c | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel_winsys/intel_pipe_i915simple.c b/src/mesa/drivers/dri/intel_winsys/intel_pipe_i915simple.c new file mode 100644 index 0000000000..b456550a8c --- /dev/null +++ b/src/mesa/drivers/dri/intel_winsys/intel_pipe_i915simple.c @@ -0,0 +1,248 @@ +/************************************************************************** + * + * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA + * 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 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 + * THE COPYRIGHT HOLDERS, AUTHORS 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. + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * + **************************************************************************/ +/* + * Authors: Keith Whitwell <keithw-at-tungstengraphics-dot-com> + */ + +#include <stdlib.h> +#include <xf86drm.h> +#include "dri_bufpool.h" +#include "dri_bufmgr.h" + +#include "intel_context.h" +#include "intel_batchbuffer.h" +#include "intel_pipe.h" + +#include "pipe/i915simple/i915_winsys.h" + + +struct intel_i915_winsys { + struct i915_winsys winsys; + struct intel_context *intel; +}; + + +/* Turn a i915simple winsys into an intel/i915simple winsys: + */ +static inline struct intel_i915_winsys * +intel_i915_winsys( struct i915_winsys *sws ) +{ + return (struct intel_i915_winsys *)sws; +} + + + +/* Many of the winsys's are probably going to have a similar + * buffer-manager interface, as something almost identical is + * currently exposed in the pipe interface. Probably want to avoid + * endless repetition of this code somehow. + */ +static inline struct _DriBufferObject * +dri_bo( struct pipe_buffer_handle *bo ) +{ + return (struct _DriBufferObject *)bo; +} + +static inline struct pipe_buffer_handle * +pipe_bo( struct _DriBufferObject *bo ) +{ + return (struct pipe_buffer_handle *)bo; +} + + +/* Most callbacks map direcly onto dri_bufmgr operations: + */ +static void *intel_i915_buffer_map(struct i915_winsys *sws, + struct pipe_buffer_handle *buf ) +{ + return driBOMap( dri_bo(buf), + DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0 ); +} + +static void intel_i915_buffer_unmap(struct i915_winsys *sws, + struct pipe_buffer_handle *buf) +{ + driBOUnmap( dri_bo(buf) ); +} + + +static struct pipe_buffer_handle * +intel_i915_buffer_reference(struct i915_winsys *sws, + struct pipe_buffer_handle *buf) +{ + return pipe_bo( driBOReference( dri_bo(buf) ) ); +} + +static void intel_i915_buffer_unreference(struct i915_winsys *sws, + struct pipe_buffer_handle **buf) +{ + if (*buf) { + driBOUnReference( dri_bo(*buf) ); + *buf = NULL; + } +} + +/* Grabs the hardware lock! + */ +static void intel_i915_buffer_data(struct i915_winsys *sws, + struct pipe_buffer_handle *buf, + unsigned size, const void *data ) +{ + struct intel_context *intel = intel_i915_winsys(sws)->intel; + + LOCK_HARDWARE( intel ); + driBOData( dri_bo(buf), size, data, 0 ); + UNLOCK_HARDWARE( intel ); +} + +static void intel_i915_buffer_subdata(struct i915_winsys *sws, + struct pipe_buffer_handle *buf, + unsigned long offset, + unsigned long size, + const void *data) +{ + driBOSubData( dri_bo(buf), offset, size, data ); +} + +static void intel_i915_buffer_get_subdata(struct i915_winsys *sws, + struct pipe_buffer_handle *buf, + unsigned long offset, + unsigned long size, + void *data) +{ + driBOGetSubData( dri_bo(buf), offset, size, data ); +} + +/* I915simple has no concept of pools. We choose the tex/region pool + * for all buffers. + */ +static struct pipe_buffer_handle * +intel_i915_buffer_create(struct i915_winsys *sws, + unsigned alignment) +{ + struct intel_context *intel = intel_i915_winsys(sws)->intel; + struct _DriBufferObject *buffer; + + LOCK_HARDWARE( intel ); + driGenBuffers( intel->intelScreen->regionPool, + "i915simple buffer", 1, &buffer, alignment, 0, 0 ); + UNLOCK_HARDWARE( intel ); + + return pipe_bo(buffer); +} + + +/* Simple batchbuffer interface: + */ + +static unsigned *intel_i915_batch_start( struct i915_winsys *sws, + unsigned dwords, + unsigned relocs ) +{ + struct intel_context *intel = intel_i915_winsys(sws)->intel; + + /* XXX: check relocs. + */ + if (intel_batchbuffer_space( intel->batch ) < dwords * 4) { + /* XXX: Hmm, the driver can't really do much with this pointer: + */ + //return intel->batch->ptr; + return (unsigned *)~0; + } + else + return NULL; +} + +static void intel_i915_batch_dword( struct i915_winsys *sws, + unsigned dword ) +{ + struct intel_context *intel = intel_i915_winsys(sws)->intel; + intel_batchbuffer_emit_dword( intel->batch, dword ); +} + +static void intel_i915_batch_reloc( struct i915_winsys *sws, + struct pipe_buffer_handle *buf, + unsigned access_flags, + unsigned delta ) +{ + struct intel_context *intel = intel_i915_winsys(sws)->intel; + unsigned flags = 0; + unsigned mask = 0; + + intel_batchbuffer_emit_reloc( intel->batch, + dri_bo( buf ), + flags, mask, + delta ); +} + +static void intel_i915_batch_flush( struct i915_winsys *sws ) +{ + struct intel_context *intel = intel_i915_winsys(sws)->intel; + + intel_batchbuffer_flush( intel->batch ); +} + +static void intel_i915_batch_wait_idle( struct i915_winsys *sws ) +{ + struct intel_context *intel = intel_i915_winsys(sws)->intel; + + if (intel->batch->last_fence) { + driFenceFinish(intel->batch->last_fence, + DRM_FENCE_TYPE_EXE | DRM_I915_FENCE_TYPE_RW, GL_FALSE); + driFenceUnReference(intel->batch->last_fence); + intel->batch->last_fence = NULL; + } +} + +struct pipe_context * +intel_create_i915simple( struct intel_context *intel ) +{ + struct intel_i915_winsys *iws = CALLOC_STRUCT( intel_i915_winsys ); + + /* Fill in this struct with callbacks that i915simple will need to + * communicate with the window system, buffer manager, etc. + */ + iws->winsys.buffer_create = intel_i915_buffer_create; + iws->winsys.buffer_map = intel_i915_buffer_map; + iws->winsys.buffer_unmap = intel_i915_buffer_unmap; + iws->winsys.buffer_reference = intel_i915_buffer_reference; + iws->winsys.buffer_unreference = intel_i915_buffer_unreference; + iws->winsys.buffer_data = intel_i915_buffer_data; + iws->winsys.buffer_subdata = intel_i915_buffer_subdata; + iws->winsys.buffer_get_subdata = intel_i915_buffer_get_subdata; + iws->winsys.batch_start = intel_i915_batch_start; + iws->winsys.batch_dword = intel_i915_batch_dword; + iws->winsys.batch_reloc = intel_i915_batch_reloc; + iws->winsys.batch_flush = intel_i915_batch_flush; + iws->winsys.batch_wait_idle = intel_i915_batch_wait_idle; + iws->intel = intel; + + /* Create the i915simple context: + */ + return i915_create( &iws->winsys ); +} |