diff options
author | Jakob Bornecrantz <jakob@tungstengraphics.com> | 2008-05-14 17:19:44 +0200 |
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committer | Jakob Bornecrantz <jakob@tungstengraphics.com> | 2008-05-14 17:19:44 +0200 |
commit | d07fbdd93941d5027a1aa7f0726140c6648a1e27 (patch) | |
tree | 62676e18b9e027010269120ac4b0995d0d2e60b1 /src/gallium/winsys/egl_drm/intel/intel_winsys_pipe.c | |
parent | b0a58d526624485b98665b103fb5b507253b851b (diff) |
i915: Added EGL winsys
Diffstat (limited to 'src/gallium/winsys/egl_drm/intel/intel_winsys_pipe.c')
-rw-r--r-- | src/gallium/winsys/egl_drm/intel/intel_winsys_pipe.c | 338 |
1 files changed, 338 insertions, 0 deletions
diff --git a/src/gallium/winsys/egl_drm/intel/intel_winsys_pipe.c b/src/gallium/winsys/egl_drm/intel/intel_winsys_pipe.c new file mode 100644 index 0000000000..8bf8c21439 --- /dev/null +++ b/src/gallium/winsys/egl_drm/intel/intel_winsys_pipe.c @@ -0,0 +1,338 @@ +/************************************************************************** + * + * 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" +#include "pipe/p_inlines.h" + + + +struct intel_pipe_winsys { + struct pipe_winsys winsys; + struct _DriBufferPool *regionPool; + struct _DriFreeSlabManager *fMan; +}; + + + +/* 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 *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 *buf) +{ + driBOUnmap( dri_bo(buf) ); +} + + +static void +intel_buffer_destroy(struct pipe_winsys *winsys, + struct pipe_buffer *buf) +{ + driBOUnReference( dri_bo(buf) ); + FREE(buf); +} + + +/* Pipe has no concept of pools. We choose the tex/region pool + * for all buffers. + * Grabs the hardware lock! + */ +static struct pipe_buffer * +intel_buffer_create(struct pipe_winsys *winsys, + unsigned alignment, + unsigned usage, + unsigned size ) +{ + struct intel_buffer *buffer = CALLOC_STRUCT( intel_buffer ); + struct intel_pipe_winsys *iws = intel_pipe_winsys(winsys); + unsigned flags = 0; + + buffer->base.refcount = 1; + buffer->base.alignment = alignment; + buffer->base.usage = usage; + buffer->base.size = size; + + 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->driBO, alignment, flags, 0 ); + + driBOData( buffer->driBO, size, NULL, iws->regionPool, 0 ); + + return &buffer->base; +} + + +static struct pipe_buffer * +intel_user_buffer_create(struct pipe_winsys *winsys, void *ptr, unsigned bytes) +{ + struct intel_buffer *buffer = CALLOC_STRUCT( intel_buffer ); + struct intel_pipe_winsys *iws = intel_pipe_winsys(winsys); + + driGenUserBuffer( iws->regionPool, + "pipe user buffer", &buffer->driBO, ptr, bytes ); + + buffer->base.refcount = 1; + + return &buffer->base; +} + + +/* 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) +{ +#if 0 + struct intel_context *intel = (struct intel_context *) context_private; + __DRIdrawablePrivate *dPriv = intel->driDrawable; + + intelDisplaySurface(dPriv, surf, NULL); +#endif +} + + +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; + + 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) + pipe_buffer_reference(winsys, &surf->buffer, NULL); + free(surf); + } + *s = NULL; +} + + + +static const char * +intel_get_name( struct pipe_winsys *winsys ) +{ + return "Intel/EGL/ttm"; +} + +static void +intel_fence_reference( struct pipe_winsys *sws, + struct pipe_fence_handle **ptr, + struct pipe_fence_handle *fence ) +{ + if (*ptr) + driFenceUnReference((struct _DriFenceObject **)ptr); + + if (fence) + *ptr = (struct pipe_fence_handle *)driFenceReference((struct _DriFenceObject *)fence); +} + +static int +intel_fence_signalled( struct pipe_winsys *sws, + struct pipe_fence_handle *fence, + unsigned flag ) +{ + return driFenceSignaled((struct _DriFenceObject *)fence, flag); +} + +static int +intel_fence_finish( struct pipe_winsys *sws, + struct pipe_fence_handle *fence, + unsigned flag ) +{ + /* JB: Lets allways lazy wait */ + return driFenceFinish((struct _DriFenceObject *)fence, flag, 1); +} + +struct pipe_winsys * +intel_create_pipe_winsys( int fd, struct _DriFreeSlabManager *fMan ) +{ + 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_destroy = intel_buffer_destroy; + iws->winsys.flush_frontbuffer = intel_flush_frontbuffer; + 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; + + iws->winsys.fence_reference = intel_fence_reference; + iws->winsys.fence_signalled = intel_fence_signalled; + iws->winsys.fence_finish = intel_fence_finish; + + if (fd) + iws->regionPool = driSlabPoolInit(fd, + DRM_BO_FLAG_READ | + DRM_BO_FLAG_WRITE | + DRM_BO_FLAG_MEM_TT, + DRM_BO_FLAG_READ | + DRM_BO_FLAG_WRITE | + DRM_BO_FLAG_MEM_TT, + 64, 6, 16, 4096, 0, + fMan); + + 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); +} + |