src/gallium/drivers/svga/svga_surface.h

   1 /**********************************************************
   2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
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   9  * of the Software, and to permit persons to whom the Software is
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  13  * included in all copies or substantial portions of the Software.
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  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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  25
  26 #ifndef SVGA_SURFACE_H
  27 #define SVGA_SURFACE_H
  28
  29
  30 #include "pipe/p_compiler.h"
  31 #include "pipe/p_state.h"
  32 #include "util/u_inlines.h"
  33 #include "svga_screen_cache.h"
  34
  35 struct pipe_context;
  36 struct pipe_screen;
  37 struct svga_context;
  38 struct svga_texture;
  39 struct svga_winsys_surface;
  40 enum SVGA3dSurfaceFormat;
  41
  42
  43 struct svga_surface
  44 {
  45    struct pipe_surface base;
  46
  47    struct svga_host_surface_cache_key key;
  48
  49    /*
  50     * Note that the handle may point at a secondary / backing resource
  51     * created by svga_texture_view_surface() which is something other
  52     * than svga_texture(base->texture)->handle.
  53     */
  54    struct svga_winsys_surface *handle;
  55
  56    unsigned real_layer;
  57    unsigned real_level;
  58    unsigned real_zslice;
  59
  60    boolean dirty;
  61
  62    /* VGPU10 */
  63    SVGA3dRenderTargetViewId view_id;
  64
  65    /*
  66     * As with 'handle' above, this may point to a secondary / backing resource.
  67     * We can't have one resource bound as both a render target and a shader
  68     * resource at the same time.  But we sometimes want to do that, such as
  69     * for mipmap generation where we sample from one level and render into
  70     * another.
  71     * In this situation, the backed surface is the render target while the
  72     * original surface is the shader resource.
  73     */
  74    struct svga_surface *backed;
  75 };
  76
  77
  78 extern void
  79 svga_propagate_surface(struct svga_context *svga, struct pipe_surface *surf);
  80
  81 void
  82 svga_propagate_rendertargets(struct svga_context *svga);
  83
  84 extern boolean
  85 svga_surface_needs_propagation(const struct pipe_surface *surf);
  86
  87 struct svga_winsys_surface *
  88 svga_texture_view_surface(struct svga_context *svga,
  89                           struct svga_texture *tex,
  90                           unsigned bind_flags,
  91                           SVGA3dSurfaceFlags flags,
  92                           SVGA3dSurfaceFormat format,
  93                           unsigned start_mip,
  94                           unsigned num_mip,
  95                           int layer_pick,
  96                           unsigned num_layers,
  97                           int zslice_pick,
  98                           struct svga_host_surface_cache_key *key); /* OUT */
  99
 100
 101 void
 102 svga_texture_copy_handle(struct svga_context *svga,
 103                          struct svga_winsys_surface *src_handle,
 104                          unsigned src_x, unsigned src_y, unsigned src_z,
 105                          unsigned src_level, unsigned src_face,
 106                          struct svga_winsys_surface *dst_handle,
 107                          unsigned dst_x, unsigned dst_y, unsigned dst_z,
 108                          unsigned dst_level, unsigned dst_face,
 109                          unsigned width, unsigned height, unsigned depth);
 110
 111
 112 static inline struct svga_surface *
 113 svga_surface(struct pipe_surface *surface)
 114 {
 115    return (struct svga_surface *)surface;
 116 }
 117
 118
 119 static inline const struct svga_surface *
 120 svga_surface_const(const struct pipe_surface *surface)
 121 {
 122    return (const struct svga_surface *)surface;
 123 }
 124
 125 struct pipe_surface *
 126 svga_validate_surface_view(struct svga_context *svga, struct svga_surface *s);
 127
 128 static inline SVGA3dResourceType
 129 svga_resource_type(enum pipe_texture_target target)
 130 {
 131    switch (target) {
 132    case PIPE_TEXTURE_1D:
 133    case PIPE_TEXTURE_1D_ARRAY:
 134       return SVGA3D_RESOURCE_TEXTURE1D;
 135    case PIPE_TEXTURE_RECT:
 136    case PIPE_TEXTURE_2D:
 137    case PIPE_TEXTURE_2D_ARRAY:
 138    case PIPE_TEXTURE_CUBE:
 139       /* drawing to cube map is treated as drawing to 2D array */
 140       return SVGA3D_RESOURCE_TEXTURE2D;
 141    case PIPE_TEXTURE_3D:
 142       return SVGA3D_RESOURCE_TEXTURE3D;
 143    default:
 144       assert(!"Unexpected texture target");
 145       return SVGA3D_RESOURCE_TEXTURE2D;
 146    }
 147 }
 148
 149 #endif