diff options
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_winsys.c')
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_winsys.c | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/src/gallium/drivers/softpipe/sp_winsys.c b/src/gallium/drivers/softpipe/sp_winsys.c new file mode 100644 index 00000000000..38bcd64c6a5 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_winsys.c @@ -0,0 +1,244 @@ +/************************************************************************** + * + * Copyright 2007 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. + * + * + **************************************************************************/ + +/** + * @file + * Malloc softpipe winsys. Uses malloc for all memory allocations. + * + * @author Keith Whitwell + * @author Brian Paul + * @author Jose Fonseca + */ + + +#include "pipe/internal/p_winsys_screen.h"/* port to just p_screen */ +#include "pipe/p_format.h" +#include "pipe/p_context.h" +#include "util/u_format.h" +#include "util/u_math.h" +#include "util/u_memory.h" +#include "softpipe/sp_winsys.h" + + +struct st_softpipe_buffer +{ + struct pipe_buffer base; + boolean userBuffer; /** Is this a user-space buffer? */ + void *data; + void *mapped; +}; + + +/** Cast wrapper */ +static INLINE struct st_softpipe_buffer * +st_softpipe_buffer( struct pipe_buffer *buf ) +{ + return (struct st_softpipe_buffer *)buf; +} + + +static void * +st_softpipe_buffer_map(struct pipe_winsys *winsys, + struct pipe_buffer *buf, + unsigned flags) +{ + struct st_softpipe_buffer *st_softpipe_buf = st_softpipe_buffer(buf); + st_softpipe_buf->mapped = st_softpipe_buf->data; + return st_softpipe_buf->mapped; +} + + +static void +st_softpipe_buffer_unmap(struct pipe_winsys *winsys, + struct pipe_buffer *buf) +{ + struct st_softpipe_buffer *st_softpipe_buf = st_softpipe_buffer(buf); + st_softpipe_buf->mapped = NULL; +} + + +static void +st_softpipe_buffer_destroy(struct pipe_buffer *buf) +{ + struct st_softpipe_buffer *oldBuf = st_softpipe_buffer(buf); + + if (oldBuf->data) { + if (!oldBuf->userBuffer) + align_free(oldBuf->data); + + oldBuf->data = NULL; + } + + FREE(oldBuf); +} + + +static void +st_softpipe_flush_frontbuffer(struct pipe_winsys *winsys, + struct pipe_surface *surf, + void *context_private) +{ +} + + + +static const char * +st_softpipe_get_name(struct pipe_winsys *winsys) +{ + return "softpipe"; +} + + +static struct pipe_buffer * +st_softpipe_buffer_create(struct pipe_winsys *winsys, + unsigned alignment, + unsigned usage, + unsigned size) +{ + struct st_softpipe_buffer *buffer = CALLOC_STRUCT(st_softpipe_buffer); + + pipe_reference_init(&buffer->base.reference, 1); + buffer->base.alignment = alignment; + buffer->base.usage = usage; + buffer->base.size = size; + + buffer->data = align_malloc(size, alignment); + + return &buffer->base; +} + + +/** + * Create buffer which wraps user-space data. + */ +static struct pipe_buffer * +st_softpipe_user_buffer_create(struct pipe_winsys *winsys, + void *ptr, + unsigned bytes) +{ + struct st_softpipe_buffer *buffer; + + buffer = CALLOC_STRUCT(st_softpipe_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 struct pipe_buffer * +st_softpipe_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 +st_softpipe_fence_reference(struct pipe_winsys *winsys, + struct pipe_fence_handle **ptr, + struct pipe_fence_handle *fence) +{ +} + + +static int +st_softpipe_fence_signalled(struct pipe_winsys *winsys, + struct pipe_fence_handle *fence, + unsigned flag) +{ + return 0; +} + + +static int +st_softpipe_fence_finish(struct pipe_winsys *winsys, + struct pipe_fence_handle *fence, + unsigned flag) +{ + return 0; +} + + +static void +st_softpipe_destroy(struct pipe_winsys *winsys) +{ + FREE(winsys); +} + + +struct pipe_screen * +softpipe_create_screen_malloc(void) +{ + static struct pipe_winsys *winsys; + struct pipe_screen *screen; + + winsys = CALLOC_STRUCT(pipe_winsys); + if(!winsys) + return NULL; + + winsys->destroy = st_softpipe_destroy; + + winsys->buffer_create = st_softpipe_buffer_create; + winsys->user_buffer_create = st_softpipe_user_buffer_create; + winsys->buffer_map = st_softpipe_buffer_map; + winsys->buffer_unmap = st_softpipe_buffer_unmap; + winsys->buffer_destroy = st_softpipe_buffer_destroy; + + winsys->surface_buffer_create = st_softpipe_surface_buffer_create; + + winsys->fence_reference = st_softpipe_fence_reference; + winsys->fence_signalled = st_softpipe_fence_signalled; + winsys->fence_finish = st_softpipe_fence_finish; + + winsys->flush_frontbuffer = st_softpipe_flush_frontbuffer; + winsys->get_name = st_softpipe_get_name; + + screen = softpipe_create_screen(winsys); + if(!screen) + st_softpipe_destroy(winsys); + + return screen; +} |