/**************************************************************************
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*
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* Copyright 2007 VMware, Inc.
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* All Rights Reserved.
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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
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef LP_TEXTURE_H
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#define LP_TEXTURE_H
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#include "pipe/p_state.h"
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#include "util/u_debug.h"
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#include "lp_limits.h"
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enum lp_texture_usage
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{
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LP_TEX_USAGE_READ = 100,
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LP_TEX_USAGE_READ_WRITE,
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LP_TEX_USAGE_WRITE_ALL
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};
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struct pipe_context;
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struct pipe_screen;
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struct llvmpipe_context;
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struct sw_displaytarget;
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/**
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* llvmpipe subclass of pipe_resource. A texture, drawing surface,
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* vertex buffer, const buffer, etc.
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* Textures are stored differently than other types of objects such as
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* vertex buffers and const buffers.
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* The latter are simple malloc'd blocks of memory.
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*/
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struct llvmpipe_resource
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{
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struct pipe_resource base;
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/** Row stride in bytes */
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unsigned row_stride[LP_MAX_TEXTURE_LEVELS];
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/** Image stride (for cube maps, array or 3D textures) in bytes */
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unsigned img_stride[LP_MAX_TEXTURE_LEVELS];
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/** Offset to start of mipmap level, in bytes */
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unsigned mip_offsets[LP_MAX_TEXTURE_LEVELS];
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/** allocated total size (for non-display target texture resources only) */
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unsigned total_alloc_size;
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/**
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* Display target, for textures with the PIPE_BIND_DISPLAY_TARGET
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* usage.
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*/
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struct sw_displaytarget *dt;
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/**
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* Malloc'ed data for regular textures, or a mapping to dt above.
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*/
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void *tex_data;
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/**
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* Data for non-texture resources.
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*/
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void *data;
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boolean userBuffer; /** Is this a user-space buffer? */
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unsigned timestamp;
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unsigned id; /**< temporary, for debugging */
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#ifdef DEBUG
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/** for linked list */
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struct llvmpipe_resource *prev, *next;
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#endif
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};
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struct llvmpipe_transfer
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{
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struct pipe_transfer base;
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unsigned long offset;
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};
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/** cast wrappers */
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static inline struct llvmpipe_resource *
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llvmpipe_resource(struct pipe_resource *pt)
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{
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return (struct llvmpipe_resource *) pt;
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}
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static inline const struct llvmpipe_resource *
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llvmpipe_resource_const(const struct pipe_resource *pt)
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{
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return (const struct llvmpipe_resource *) pt;
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}
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static inline struct llvmpipe_transfer *
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llvmpipe_transfer(struct pipe_transfer *pt)
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{
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return (struct llvmpipe_transfer *) pt;
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}
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void llvmpipe_init_screen_resource_funcs(struct pipe_screen *screen);
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void llvmpipe_init_context_resource_funcs(struct pipe_context *pipe);
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static inline boolean
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llvmpipe_resource_is_texture(const struct pipe_resource *resource)
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{
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switch (resource->target) {
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case PIPE_BUFFER:
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return FALSE;
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case PIPE_TEXTURE_1D:
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case PIPE_TEXTURE_1D_ARRAY:
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case PIPE_TEXTURE_2D:
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case PIPE_TEXTURE_2D_ARRAY:
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case PIPE_TEXTURE_RECT:
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case PIPE_TEXTURE_3D:
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case PIPE_TEXTURE_CUBE:
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case PIPE_TEXTURE_CUBE_ARRAY:
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return TRUE;
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default:
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assert(0);
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return FALSE;
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}
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}
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static inline boolean
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llvmpipe_resource_is_1d(const struct pipe_resource *resource)
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{
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switch (resource->target) {
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case PIPE_BUFFER:
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case PIPE_TEXTURE_1D:
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case PIPE_TEXTURE_1D_ARRAY:
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return TRUE;
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case PIPE_TEXTURE_2D:
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case PIPE_TEXTURE_2D_ARRAY:
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case PIPE_TEXTURE_RECT:
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case PIPE_TEXTURE_3D:
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case PIPE_TEXTURE_CUBE:
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case PIPE_TEXTURE_CUBE_ARRAY:
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return FALSE;
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default:
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assert(0);
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return FALSE;
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}
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}
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static inline unsigned
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llvmpipe_layer_stride(struct pipe_resource *resource,
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unsigned level)
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{
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struct llvmpipe_resource *lpr = llvmpipe_resource(resource);
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assert(level < LP_MAX_TEXTURE_2D_LEVELS);
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return lpr->img_stride[level];
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}
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static inline unsigned
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llvmpipe_resource_stride(struct pipe_resource *resource,
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unsigned level)
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{
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struct llvmpipe_resource *lpr = llvmpipe_resource(resource);
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assert(level < LP_MAX_TEXTURE_2D_LEVELS);
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return lpr->row_stride[level];
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}
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void *
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llvmpipe_resource_map(struct pipe_resource *resource,
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unsigned level,
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unsigned layer,
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enum lp_texture_usage tex_usage);
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void
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llvmpipe_resource_unmap(struct pipe_resource *resource,
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unsigned level,
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unsigned layer);
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void *
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llvmpipe_resource_data(struct pipe_resource *resource);
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unsigned
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llvmpipe_resource_size(const struct pipe_resource *resource);
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ubyte *
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llvmpipe_get_texture_image_address(struct llvmpipe_resource *lpr,
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unsigned face_slice, unsigned level);
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extern void
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llvmpipe_print_resources(void);
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#define LP_UNREFERENCED 0
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#define LP_REFERENCED_FOR_READ (1 << 0)
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#define LP_REFERENCED_FOR_WRITE (1 << 1)
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unsigned int
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llvmpipe_is_resource_referenced( struct pipe_context *pipe,
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struct pipe_resource *presource,
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unsigned level);
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unsigned
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llvmpipe_get_format_alignment(enum pipe_format format);
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#endif /* LP_TEXTURE_H */
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