src/gallium/drivers/svga/svga_format.h

   1 /**********************************************************
   2  * Copyright 2011 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
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 #ifndef SVGA_FORMAT_H_
  27 #define SVGA_FORMAT_H_
  28
  29
  30 #include "pipe/p_format.h"
  31 #include "svga_context.h"
  32 #include "svga_types.h"
  33 #include "svga_reg.h"
  34 #include "svga3d_reg.h"
  35
  36
  37 struct svga_screen;
  38
  39
  40 /**
  41  * Vertex format flags.  These are used to specify that some vertex formats
  42  * need extra processing/conversion in the vertex shader.  For example,
  43  * setting the W component to 1, or swapping R/B, or converting packed uint
  44  * types to signed int/snorm.
  45  */
  46 #define VF_ADJUST_RANGE     (1 << 0)
  47 #define VF_W_TO_1           (1 << 1)
  48 #define VF_U_TO_F_CAST      (1 << 2)  /* convert uint to float */
  49 #define VF_I_TO_F_CAST      (1 << 3)  /* convert sint to float */
  50 #define VF_BGRA             (1 << 4)  /* swap R/B */
  51 #define VF_PUINT_TO_SNORM   (1 << 5)  /* 10_10_10_2 to snorm */
  52 #define VF_PUINT_TO_USCALED (1 << 6)  /* 10_10_10_2 to uscaled */
  53 #define VF_PUINT_TO_SSCALED (1 << 7)  /* 10_10_10_2 to sscaled */
  54
  55 /**
  56  * Texture format flags.
  57  */
  58 #define TF_GEN_MIPS         (1 << 8)  /* supports hw generate mipmap */
  59
  60 void
  61 svga_translate_vertex_format_vgpu10(enum pipe_format format,
  62                                     SVGA3dSurfaceFormat *svga_format,
  63                                     unsigned *vf_flags);
  64
  65 enum SVGA3dSurfaceFormat
  66 svga_translate_format(const struct svga_screen *ss,
  67                       enum pipe_format format,
  68                       unsigned bind);
  69
  70 void
  71 svga_get_format_cap(struct svga_screen *ss,
  72                     SVGA3dSurfaceFormat format,
  73                     SVGA3dSurfaceFormatCaps *caps);
  74
  75 void
  76 svga_format_size(SVGA3dSurfaceFormat format,
  77                  unsigned *block_width,
  78                  unsigned *block_height,
  79                  unsigned *bytes_per_block);
  80
  81 const char *
  82 svga_format_name(SVGA3dSurfaceFormat format);
  83
  84 boolean
  85 svga_format_is_integer(SVGA3dSurfaceFormat format);
  86
  87 boolean
  88 svga_format_support_gen_mips(enum pipe_format format);
  89
  90 enum tgsi_return_type
  91 svga_get_texture_datatype(enum pipe_format format);
  92
  93
  94 // XXX: Move this to svga_context?
  95 boolean
  96 svga_has_any_integer_cbufs(const struct svga_context *svga);
  97
  98
  99 SVGA3dSurfaceFormat
 100 svga_typeless_format(SVGA3dSurfaceFormat format);
 101
 102
 103 SVGA3dSurfaceFormat
 104 svga_sampler_format(SVGA3dSurfaceFormat format);
 105
 106
 107 bool
 108 svga_format_is_uncompressed_snorm(SVGA3dSurfaceFormat format);
 109
 110
 111 bool
 112 svga_format_is_typeless(SVGA3dSurfaceFormat format);
 113
 114 bool
 115 svga_format_is_shareable(const struct svga_screen *ss,
 116                          enum pipe_format pformat,
 117                          SVGA3dSurfaceFormat sformat,
 118                          unsigned bind,
 119                          bool verbose);
 120 #endif /* SVGA_FORMAT_H_ */