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      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
     19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     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 #endif /* SVGA_FORMAT_H_ */
    115