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/**********************************************************
* Copyright 2009-2015 VMware, Inc. 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, sublicense, 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 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
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* 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.
*
**********************************************************/
#include "svga_cmd.h"
#include "util/u_debug.h"
#include "util/u_memory.h"
#include "vmw_context.h"
#include "vmw_shader.h"
#include "vmw_buffer.h"
#include "vmw_screen.h"
void
vmw_svga_winsys_shader_reference(struct vmw_svga_winsys_shader **pdst,
struct vmw_svga_winsys_shader *src)
{
struct pipe_reference *src_ref;
struct pipe_reference *dst_ref;
struct vmw_svga_winsys_shader *dst;
if(pdst == NULL || *pdst == src)
return;
dst = *pdst;
src_ref = src ? &src->refcnt : NULL;
dst_ref = dst ? &dst->refcnt : NULL;
if (pipe_reference(dst_ref, src_ref)) {
struct svga_winsys_screen *sws = &dst->screen->base;
if (!sws->have_vgpu10)
vmw_ioctl_shader_destroy(dst->screen, dst->shid);
#ifdef DEBUG
/* to detect dangling pointers */
assert(p_atomic_read(&dst->validated) == 0);
dst->shid = SVGA3D_INVALID_ID;
#endif
sws->buffer_destroy(sws, dst->buf);
FREE(dst);
}
*pdst = src;
}
/**
* A helper function to create a shader object and upload the
* shader bytecode and signature if specified to the shader memory.
*/
struct vmw_svga_winsys_shader *
vmw_svga_shader_create(struct svga_winsys_screen *sws,
SVGA3dShaderType type,
const uint32 *bytecode,
uint32 bytecodeLen,
const SVGA3dDXShaderSignatureHeader *sgnInfo,
uint32 sgnLen)
{
struct vmw_svga_winsys_shader *shader;
void *map;
shader = CALLOC_STRUCT(vmw_svga_winsys_shader);
if (!shader)
return NULL;
pipe_reference_init(&shader->refcnt, 1);
p_atomic_set(&shader->validated, 0);
shader->screen = vmw_winsys_screen(sws);
shader->buf = sws->buffer_create(sws, 64,
SVGA_BUFFER_USAGE_SHADER,
bytecodeLen + sgnLen);
if (!shader->buf) {
FREE(shader);
return NULL;
}
map = sws->buffer_map(sws, shader->buf, PIPE_MAP_WRITE);
if (!map) {
FREE(shader);
return NULL;
}
/* copy the shader bytecode */
memcpy(map, bytecode, bytecodeLen);
/* if shader signature is specified, append it to the bytecode. */
if (sgnLen) {
assert(sws->have_sm5);
map = (char *)map + bytecodeLen;
memcpy(map, sgnInfo, sgnLen);
}
sws->buffer_unmap(sws, shader->buf);
return shader;
}
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