forked from KolibriOS/kolibrios
109 lines
3.0 KiB
C
109 lines
3.0 KiB
C
/*
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* Copyright © 2011 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors:
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* Chris Wilson <chris@chris-wilson.co.uk>
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*
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*/
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#include <linux/kernel.h>
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#include "../bitmap.h"
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#include "sna.h"
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#include "sna_render.h"
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#include <memory.h>
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#if DEBUG_STREAM
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#undef DBG
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#define DBG(x) ErrorF x
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#endif
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int sna_static_stream_init(struct sna_static_stream *stream)
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{
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stream->used = 0;
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stream->size = 64*1024;
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stream->data = malloc(stream->size);
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return stream->data != NULL;
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}
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static uint32_t sna_static_stream_alloc(struct sna_static_stream *stream,
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uint32_t len, uint32_t align)
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{
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uint32_t offset = ALIGN(stream->used, align);
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uint32_t size = offset + len;
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if (size > stream->size) {
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/*
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do
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stream->size *= 2;
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while (stream->size < size);
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stream->data = realloc(stream->data, stream->size);
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*/
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dbgprintf("%s: EPIC FAIL\n", __FUNCTION__);
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return 0;
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}
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stream->used = size;
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return offset;
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}
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uint32_t sna_static_stream_add(struct sna_static_stream *stream,
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const void *data, uint32_t len, uint32_t align)
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{
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uint32_t offset = sna_static_stream_alloc(stream, len, align);
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memcpy(stream->data + offset, data, len);
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return offset;
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}
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void *sna_static_stream_map(struct sna_static_stream *stream,
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uint32_t len, uint32_t align)
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{
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uint32_t offset = sna_static_stream_alloc(stream, len, align);
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return memset(stream->data + offset, 0, len);
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}
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uint32_t sna_static_stream_offsetof(struct sna_static_stream *stream, void *ptr)
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{
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return (uint8_t *)ptr - stream->data;
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}
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struct kgem_bo *sna_static_stream_fini(struct sna *sna,
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struct sna_static_stream *stream)
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{
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struct kgem_bo *bo;
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DBG(("uploaded %d bytes of static state\n", stream->used));
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bo = kgem_create_linear(&sna->kgem, stream->used);
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if (bo && !kgem_bo_write(&sna->kgem, bo, stream->data, stream->used)) {
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// kgem_bo_destroy(&sna->kgem, bo);
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return NULL;
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}
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free(stream->data);
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LEAVE();
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return bo;
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}
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