| /************************************************************************** |
| * |
| * 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_winsys.h" |
| #include "intel_swapbuffers.h" |
| #include "intel_batchbuffer.h" |
| |
| #include "pipe/p_winsys.h" |
| #include "pipe/p_defines.h" |
| #include "pipe/p_state.h" |
| #include "pipe/p_util.h" |
| |
| |
| |
| struct intel_pipe_winsys { |
| struct pipe_winsys winsys; |
| struct _DriBufferPool *regionPool; |
| }; |
| |
| |
| |
| /* Turn a pipe winsys into an intel/pipe winsys: |
| */ |
| static inline struct intel_pipe_winsys * |
| intel_pipe_winsys( struct pipe_winsys *winsys ) |
| { |
| return (struct intel_pipe_winsys *)winsys; |
| } |
| |
| |
| /* Most callbacks map direcly onto dri_bufmgr operations: |
| */ |
| static void *intel_buffer_map(struct pipe_winsys *winsys, |
| struct pipe_buffer_handle *buf, |
| unsigned flags ) |
| { |
| unsigned drm_flags = 0; |
| |
| if (flags & PIPE_BUFFER_USAGE_CPU_WRITE) |
| drm_flags |= DRM_BO_FLAG_WRITE; |
| |
| if (flags & PIPE_BUFFER_USAGE_CPU_READ) |
| drm_flags |= DRM_BO_FLAG_READ; |
| |
| return driBOMap( dri_bo(buf), drm_flags, 0 ); |
| } |
| |
| static void intel_buffer_unmap(struct pipe_winsys *winsys, |
| struct pipe_buffer_handle *buf) |
| { |
| driBOUnmap( dri_bo(buf) ); |
| } |
| |
| |
| static void |
| intel_buffer_reference(struct pipe_winsys *winsys, |
| struct pipe_buffer_handle **ptr, |
| struct pipe_buffer_handle *buf) |
| { |
| if (*ptr) { |
| driBOUnReference( dri_bo(*ptr) ); |
| *ptr = NULL; |
| } |
| |
| if (buf) { |
| driBOReference( dri_bo(buf) ); |
| *ptr = buf; |
| } |
| } |
| |
| |
| /* Pipe has no concept of pools. We choose the tex/region pool |
| * for all buffers. |
| * Grabs the hardware lock! |
| */ |
| static struct pipe_buffer_handle * |
| intel_buffer_create(struct pipe_winsys *winsys, |
| unsigned alignment, |
| unsigned usage, |
| unsigned size ) |
| { |
| struct _DriBufferObject *buffer; |
| struct intel_pipe_winsys *iws = intel_pipe_winsys(winsys); |
| unsigned flags = 0; |
| |
| if (usage & (PIPE_BUFFER_USAGE_VERTEX /*| IWS_BUFFER_USAGE_LOCAL*/)) { |
| flags |= DRM_BO_FLAG_MEM_LOCAL | DRM_BO_FLAG_CACHED; |
| } else { |
| flags |= DRM_BO_FLAG_MEM_VRAM | DRM_BO_FLAG_MEM_TT; |
| } |
| |
| if (usage & PIPE_BUFFER_USAGE_GPU_READ) |
| flags |= DRM_BO_FLAG_READ; |
| |
| if (usage & PIPE_BUFFER_USAGE_GPU_WRITE) |
| flags |= DRM_BO_FLAG_WRITE; |
| |
| /* drm complains if we don't set any read/write flags. |
| */ |
| if ((flags & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE)) == 0) |
| flags |= DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE; |
| |
| #if 0 |
| if (flags & IWS_BUFFER_USAGE_EXE) |
| flags |= DRM_BO_FLAG_EXE; |
| |
| if (usage & IWS_BUFFER_USAGE_CACHED) |
| flags |= DRM_BO_FLAG_CACHED; |
| #endif |
| |
| driGenBuffers( iws->regionPool, |
| "pipe buffer", 1, &buffer, alignment, flags, 0 ); |
| driBOData( buffer, size, NULL, 0 ); |
| return pipe_bo(buffer); |
| } |
| |
| |
| static struct pipe_buffer_handle * |
| intel_user_buffer_create(struct pipe_winsys *winsys, void *ptr, unsigned bytes) |
| { |
| struct _DriBufferObject *buffer; |
| struct intel_pipe_winsys *iws = intel_pipe_winsys(winsys); |
| driGenUserBuffer( iws->regionPool, |
| "pipe user buffer", &buffer, ptr, bytes); |
| return pipe_bo(buffer); |
| } |
| |
| |
| /* The state tracker (should!) keep track of whether the fake |
| * frontbuffer has been touched by any rendering since the last time |
| * we copied its contents to the real frontbuffer. Our task is easy: |
| */ |
| static void |
| intel_flush_frontbuffer( struct pipe_winsys *winsys, |
| struct pipe_surface *surf, |
| void *context_private) |
| { |
| struct intel_context *intel = (struct intel_context *) context_private; |
| __DRIdrawablePrivate *dPriv = intel->driDrawable; |
| |
| intelDisplaySurface(dPriv, surf, NULL); |
| } |
| |
| |
| static struct pipe_surface * |
| intel_i915_surface_alloc(struct pipe_winsys *winsys) |
| { |
| struct pipe_surface *surf = CALLOC_STRUCT(pipe_surface); |
| if (surf) { |
| surf->refcount = 1; |
| surf->winsys = winsys; |
| } |
| return surf; |
| } |
| |
| |
| /** |
| * Round n up to next multiple. |
| */ |
| static INLINE unsigned |
| round_up(unsigned n, unsigned multiple) |
| { |
| return (n + multiple - 1) & ~(multiple - 1); |
| } |
| |
| /** |
| * Copied from xm_winsys.c |
| */ |
| static int |
| intel_i915_surface_alloc_storage(struct pipe_winsys *winsys, |
| struct pipe_surface *surf, |
| unsigned width, unsigned height, |
| enum pipe_format format, |
| unsigned flags) |
| { |
| const unsigned alignment = 64; |
| int ret; |
| |
| surf->width = width; |
| surf->height = height; |
| surf->format = format; |
| surf->cpp = pf_get_size(format); |
| surf->pitch = round_up(width, alignment / surf->cpp); |
| |
| assert(!surf->buffer); |
| surf->buffer = winsys->buffer_create(winsys, alignment, |
| PIPE_BUFFER_USAGE_PIXEL, |
| surf->pitch * surf->cpp * height); |
| if(!surf->buffer) |
| return -1; |
| |
| if(ret) { |
| winsys->buffer_reference(winsys, &surf->buffer, NULL); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| |
| static void |
| intel_i915_surface_release(struct pipe_winsys *winsys, struct pipe_surface **s) |
| { |
| struct pipe_surface *surf = *s; |
| surf->refcount--; |
| if (surf->refcount == 0) { |
| if (surf->buffer) |
| winsys->buffer_reference(winsys, &surf->buffer, NULL); |
| free(surf); |
| } |
| *s = NULL; |
| } |
| |
| |
| |
| static void |
| intel_printf( struct pipe_winsys *winsys, const char *fmtString, ... ) |
| { |
| va_list args; |
| va_start( args, fmtString ); |
| vfprintf(stderr, fmtString, args); |
| va_end( args ); |
| } |
| |
| static const char * |
| intel_get_name( struct pipe_winsys *winsys ) |
| { |
| return "Intel/DRI/ttm"; |
| } |
| |
| |
| struct pipe_winsys * |
| intel_create_pipe_winsys( int fd ) |
| { |
| struct intel_pipe_winsys *iws = CALLOC_STRUCT( intel_pipe_winsys ); |
| |
| /* Fill in this struct with callbacks that pipe will need to |
| * communicate with the window system, buffer manager, etc. |
| * |
| * Pipe would be happy with a malloc based memory manager, but |
| * the SwapBuffers implementation in this winsys driver requires |
| * that rendering be done to an appropriate _DriBufferObject. |
| */ |
| iws->winsys.buffer_create = intel_buffer_create; |
| iws->winsys.user_buffer_create = intel_user_buffer_create; |
| iws->winsys.buffer_map = intel_buffer_map; |
| iws->winsys.buffer_unmap = intel_buffer_unmap; |
| iws->winsys.buffer_reference = intel_buffer_reference; |
| iws->winsys.flush_frontbuffer = intel_flush_frontbuffer; |
| iws->winsys.printf = intel_printf; |
| iws->winsys.get_name = intel_get_name; |
| iws->winsys.surface_alloc = intel_i915_surface_alloc; |
| iws->winsys.surface_alloc_storage = intel_i915_surface_alloc_storage; |
| iws->winsys.surface_release = intel_i915_surface_release; |
| |
| if (fd) |
| iws->regionPool = driDRMPoolInit(fd); |
| |
| return &iws->winsys; |
| } |
| |
| |
| void |
| intel_destroy_pipe_winsys( struct pipe_winsys *winsys ) |
| { |
| struct intel_pipe_winsys *iws = intel_pipe_winsys(winsys); |
| if (iws->regionPool) { |
| driPoolTakeDown(iws->regionPool); |
| } |
| free(iws); |
| } |
| |