| /************************************************************************** |
| * |
| * Copyright 2006 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. |
| * |
| **************************************************************************/ |
| /* |
| * Authors: |
| * Keith Whitwell <keith@tungstengraphics.com> |
| * Michel Dänzer <michel@tungstengraphics.com> |
| */ |
| |
| #include "pipe/p_context.h" |
| #include "pipe/p_defines.h" |
| #include "util/u_inlines.h" |
| #include "util/u_math.h" |
| #include "util/u_memory.h" |
| |
| #include "i915_context.h" |
| #include "i915_resource.h" |
| |
| |
| |
| static boolean |
| i915_buffer_get_handle(struct pipe_screen *screen, |
| struct pipe_resource *resource, |
| struct winsys_handle *handle) |
| { |
| return FALSE; |
| } |
| |
| static void |
| i915_buffer_destroy(struct pipe_screen *screen, |
| struct pipe_resource *resource) |
| { |
| struct i915_buffer *buffer = i915_buffer(resource); |
| if (buffer->free_on_destroy) |
| align_free(buffer->data); |
| FREE(buffer); |
| } |
| |
| |
| static struct pipe_transfer * |
| i915_get_transfer(struct pipe_context *pipe, |
| struct pipe_resource *resource, |
| unsigned level, |
| unsigned usage, |
| const struct pipe_box *box) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| struct pipe_transfer *transfer = util_slab_alloc(&i915->transfer_pool); |
| |
| if (transfer == NULL) |
| return NULL; |
| |
| transfer->resource = resource; |
| transfer->level = level; |
| transfer->usage = usage; |
| transfer->box = *box; |
| |
| /* Note strides are zero, this is ok for buffers, but not for |
| * textures 2d & higher at least. |
| */ |
| return transfer; |
| } |
| |
| static void |
| i915_transfer_destroy(struct pipe_context *pipe, |
| struct pipe_transfer *transfer) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| util_slab_free(&i915->transfer_pool, transfer); |
| } |
| |
| static void * |
| i915_buffer_transfer_map( struct pipe_context *pipe, |
| struct pipe_transfer *transfer ) |
| { |
| struct i915_buffer *buffer = i915_buffer(transfer->resource); |
| return buffer->data + transfer->box.x; |
| } |
| |
| |
| static void |
| i915_buffer_transfer_inline_write( struct pipe_context *rm_ctx, |
| struct pipe_resource *resource, |
| unsigned level, |
| unsigned usage, |
| const struct pipe_box *box, |
| const void *data, |
| unsigned stride, |
| unsigned layer_stride) |
| { |
| struct i915_buffer *buffer = i915_buffer(resource); |
| |
| memcpy(buffer->data + box->x, |
| data, |
| box->width); |
| } |
| |
| |
| struct u_resource_vtbl i915_buffer_vtbl = |
| { |
| i915_buffer_get_handle, /* get_handle */ |
| i915_buffer_destroy, /* resource_destroy */ |
| i915_get_transfer, /* get_transfer */ |
| i915_transfer_destroy, /* transfer_destroy */ |
| i915_buffer_transfer_map, /* transfer_map */ |
| u_default_transfer_flush_region, /* transfer_flush_region */ |
| u_default_transfer_unmap, /* transfer_unmap */ |
| i915_buffer_transfer_inline_write /* transfer_inline_write */ |
| }; |
| |
| |
| |
| struct pipe_resource * |
| i915_buffer_create(struct pipe_screen *screen, |
| const struct pipe_resource *template) |
| { |
| struct i915_buffer *buf = CALLOC_STRUCT(i915_buffer); |
| |
| if (!buf) |
| return NULL; |
| |
| buf->b.b = *template; |
| buf->b.vtbl = &i915_buffer_vtbl; |
| pipe_reference_init(&buf->b.b.reference, 1); |
| buf->b.b.screen = screen; |
| buf->data = align_malloc(template->width0, 16); |
| buf->free_on_destroy = TRUE; |
| |
| if (!buf->data) |
| goto err; |
| |
| return &buf->b.b; |
| |
| err: |
| FREE(buf); |
| return NULL; |
| } |
| |
| |
| |
| struct pipe_resource * |
| i915_user_buffer_create(struct pipe_screen *screen, |
| void *ptr, |
| unsigned bytes, |
| unsigned bind) |
| { |
| struct i915_buffer *buf = CALLOC_STRUCT(i915_buffer); |
| |
| if (!buf) |
| return NULL; |
| |
| pipe_reference_init(&buf->b.b.reference, 1); |
| buf->b.vtbl = &i915_buffer_vtbl; |
| buf->b.b.screen = screen; |
| buf->b.b.format = PIPE_FORMAT_R8_UNORM; /* ?? */ |
| buf->b.b.usage = PIPE_USAGE_IMMUTABLE; |
| buf->b.b.bind = bind; |
| buf->b.b.flags = 0; |
| buf->b.b.width0 = bytes; |
| buf->b.b.height0 = 1; |
| buf->b.b.depth0 = 1; |
| buf->b.b.array_size = 1; |
| |
| buf->data = ptr; |
| buf->free_on_destroy = FALSE; |
| |
| return &buf->b.b; |
| } |