diff options
Diffstat (limited to 'src/gallium/winsys/egl_xlib/sw_winsys.c')
| -rw-r--r-- | src/gallium/winsys/egl_xlib/sw_winsys.c | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/src/gallium/winsys/egl_xlib/sw_winsys.c b/src/gallium/winsys/egl_xlib/sw_winsys.c deleted file mode 100644 index 6ee3ede38c..0000000000 --- a/src/gallium/winsys/egl_xlib/sw_winsys.c +++ /dev/null @@ -1,231 +0,0 @@ -/************************************************************************** - * - * Copyright 2008 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. - * - **************************************************************************/ - -/** - * Totally software-based winsys layer. - * Note that the one winsys function that we can't implement here - * is flush_frontbuffer(). - * Whoever uses this code will have to provide that. - * - * Authors: Brian Paul - */ - - -#include "pipe/internal/p_winsys_screen.h" -#include "pipe/p_state.h" -#include "pipe/p_inlines.h" -#include "util/u_format.h" -#include "util/u_math.h" -#include "util/u_memory.h" - -#include "sw_winsys.h" - - - -/** Subclass of pipe_winsys */ -struct sw_pipe_winsys -{ - struct pipe_winsys Base; - /* no extra fields for now */ -}; - - -/** subclass of pipe_buffer */ -struct sw_pipe_buffer -{ - struct pipe_buffer Base; - boolean UserBuffer; /** Is this a user-space buffer? */ - void *Data; - void *Mapped; -}; - - -/** cast wrapper */ -static INLINE struct sw_pipe_buffer * -sw_pipe_buffer(struct pipe_buffer *b) -{ - return (struct sw_pipe_buffer *) b; -} - - -static const char * -get_name(struct pipe_winsys *pws) -{ - return "software"; -} - - -/** Create new pipe_buffer and allocate storage of given size */ -static struct pipe_buffer * -buffer_create(struct pipe_winsys *pws, - unsigned alignment, - unsigned usage, - unsigned size) -{ - struct sw_pipe_buffer *buffer = CALLOC_STRUCT(sw_pipe_buffer); - if (!buffer) - return NULL; - - pipe_reference_init(&buffer->Base.reference, 1); - buffer->Base.alignment = alignment; - buffer->Base.usage = usage; - buffer->Base.size = size; - - /* align to 16-byte multiple for Cell */ - buffer->Data = align_malloc(size, MAX2(alignment, 16)); - - return &buffer->Base; -} - - -/** - * Create buffer which wraps user-space data. - */ -static struct pipe_buffer * -user_buffer_create(struct pipe_winsys *pws, void *ptr, unsigned bytes) -{ - struct sw_pipe_buffer *buffer = CALLOC_STRUCT(sw_pipe_buffer); - if (!buffer) - return NULL; - - pipe_reference_init(&buffer->Base.reference, 1); - buffer->Base.size = bytes; - buffer->UserBuffer = TRUE; - buffer->Data = ptr; - - return &buffer->Base; -} - - -static void * -buffer_map(struct pipe_winsys *pws, struct pipe_buffer *buf, unsigned flags) -{ - struct sw_pipe_buffer *buffer = sw_pipe_buffer(buf); - buffer->Mapped = buffer->Data; - return buffer->Mapped; -} - - -static void -buffer_unmap(struct pipe_winsys *pws, struct pipe_buffer *buf) -{ - struct sw_pipe_buffer *buffer = sw_pipe_buffer(buf); - buffer->Mapped = NULL; -} - - -static void -buffer_destroy(struct pipe_buffer *buf) -{ - struct sw_pipe_buffer *buffer = sw_pipe_buffer(buf); - - if (buffer->Data && !buffer->UserBuffer) { - align_free(buffer->Data); - buffer->Data = NULL; - } - - free(buffer); -} - - -static struct pipe_buffer * -surface_buffer_create(struct pipe_winsys *winsys, - unsigned width, unsigned height, - enum pipe_format format, - unsigned usage, - unsigned tex_usage, - unsigned *stride) -{ - const unsigned alignment = 64; - unsigned nblocksy; - - nblocksy = util_format_get_nblocksy(format, height); - *stride = align(util_format_get_stride(format, width), alignment); - - return winsys->buffer_create(winsys, alignment, - usage, - *stride * nblocksy); -} - - -static void -fence_reference(struct pipe_winsys *sws, struct pipe_fence_handle **ptr, - struct pipe_fence_handle *fence) -{ - /* no-op */ -} - - -static int -fence_signalled(struct pipe_winsys *sws, struct pipe_fence_handle *fence, - unsigned flag) -{ - /* no-op */ - return 0; -} - - -static int -fence_finish(struct pipe_winsys *sws, struct pipe_fence_handle *fence, - unsigned flag) -{ - /* no-op */ - return 0; -} - - -/** - * Create/return a new pipe_winsys object. - */ -struct pipe_winsys * -create_sw_winsys(void) -{ - struct sw_pipe_winsys *ws = CALLOC_STRUCT(sw_pipe_winsys); - if (!ws) - return NULL; - - /* Fill in this struct with callbacks that pipe will need to - * communicate with the window system, buffer manager, etc. - */ - ws->Base.buffer_create = buffer_create; - ws->Base.user_buffer_create = user_buffer_create; - ws->Base.buffer_map = buffer_map; - ws->Base.buffer_unmap = buffer_unmap; - ws->Base.buffer_destroy = buffer_destroy; - - ws->Base.surface_buffer_create = surface_buffer_create; - - ws->Base.fence_reference = fence_reference; - ws->Base.fence_signalled = fence_signalled; - ws->Base.fence_finish = fence_finish; - - ws->Base.flush_frontbuffer = NULL; /* not implemented here! */ - - ws->Base.get_name = get_name; - - return &ws->Base; -} |