src/gallium/drivers/nvfx/nvfx_tex.h

   1 #ifndef NVFX_TEX_H_
   2 #define NVFX_TEX_H_
   3
   4 static inline unsigned
   5 nvfx_tex_wrap_mode(unsigned wrap) {
   6         unsigned ret;
   7
   8         switch (wrap) {
   9         case PIPE_TEX_WRAP_REPEAT:
  10                 ret = NV34TCL_TX_WRAP_S_REPEAT;
  11                 break;
  12         case PIPE_TEX_WRAP_MIRROR_REPEAT:
  13                 ret = NV34TCL_TX_WRAP_S_MIRRORED_REPEAT;
  14                 break;
  15         case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
  16                 ret = NV34TCL_TX_WRAP_S_CLAMP_TO_EDGE;
  17                 break;
  18         case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
  19                 ret = NV34TCL_TX_WRAP_S_CLAMP_TO_BORDER;
  20                 break;
  21         case PIPE_TEX_WRAP_CLAMP:
  22                 ret = NV34TCL_TX_WRAP_S_CLAMP;
  23                 break;
  24         case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
  25                 ret = NV40TCL_TEX_WRAP_S_MIRROR_CLAMP_TO_EDGE;
  26                 break;
  27         case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
  28                 ret = NV40TCL_TEX_WRAP_S_MIRROR_CLAMP_TO_BORDER;
  29                 break;
  30         case PIPE_TEX_WRAP_MIRROR_CLAMP:
  31                 ret = NV40TCL_TEX_WRAP_S_MIRROR_CLAMP;
  32                 break;
  33         default:
  34                 NOUVEAU_ERR("unknown wrap mode: %d\n", wrap);
  35                 ret = NV34TCL_TX_WRAP_S_REPEAT;
  36                 break;
  37         }
  38
  39         return ret >> NV34TCL_TX_WRAP_S_SHIFT;
  40 }
  41
  42 static inline unsigned
  43 nvfx_tex_wrap_compare_mode(const struct pipe_sampler_state* cso)
  44 {
  45         if (cso->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
  46                 switch (cso->compare_func) {
  47                 case PIPE_FUNC_NEVER:
  48                         return NV34TCL_TX_WRAP_RCOMP_NEVER;
  49                 case PIPE_FUNC_GREATER:
  50                         return NV34TCL_TX_WRAP_RCOMP_GREATER;
  51                 case PIPE_FUNC_EQUAL:
  52                         return NV34TCL_TX_WRAP_RCOMP_EQUAL;
  53                 case PIPE_FUNC_GEQUAL:
  54                         return NV34TCL_TX_WRAP_RCOMP_GEQUAL;
  55                 case PIPE_FUNC_LESS:
  56                         return NV34TCL_TX_WRAP_RCOMP_LESS;
  57                 case PIPE_FUNC_NOTEQUAL:
  58                         return NV34TCL_TX_WRAP_RCOMP_NOTEQUAL;
  59                 case PIPE_FUNC_LEQUAL:
  60                         return NV34TCL_TX_WRAP_RCOMP_LEQUAL;
  61                 case PIPE_FUNC_ALWAYS:
  62                         return NV34TCL_TX_WRAP_RCOMP_ALWAYS;
  63                 default:
  64                         break;
  65                 }
  66         }
  67         return 0;
  68 }
  69
  70 static inline unsigned nvfx_tex_filter(const struct pipe_sampler_state* cso)
  71 {
  72         unsigned filter = 0;
  73         switch (cso->mag_img_filter) {
  74         case PIPE_TEX_FILTER_LINEAR:
  75                 filter |= NV34TCL_TX_FILTER_MAGNIFY_LINEAR;
  76                 break;
  77         case PIPE_TEX_FILTER_NEAREST:
  78         default:
  79                 filter |= NV34TCL_TX_FILTER_MAGNIFY_NEAREST;
  80                 break;
  81         }
  82
  83         switch (cso->min_img_filter) {
  84         case PIPE_TEX_FILTER_LINEAR:
  85                 switch (cso->min_mip_filter) {
  86                 case PIPE_TEX_MIPFILTER_NEAREST:
  87                         filter |= NV34TCL_TX_FILTER_MINIFY_LINEAR_MIPMAP_NEAREST;
  88                         break;
  89                 case PIPE_TEX_MIPFILTER_LINEAR:
  90                         filter |= NV34TCL_TX_FILTER_MINIFY_LINEAR_MIPMAP_LINEAR;
  91                         break;
  92                 case PIPE_TEX_MIPFILTER_NONE:
  93                 default:
  94                         filter |= NV34TCL_TX_FILTER_MINIFY_LINEAR;
  95                         break;
  96                 }
  97                 break;
  98         case PIPE_TEX_FILTER_NEAREST:
  99         default:
 100                 switch (cso->min_mip_filter) {
 101                 case PIPE_TEX_MIPFILTER_NEAREST:
 102                         filter |= NV34TCL_TX_FILTER_MINIFY_NEAREST_MIPMAP_NEAREST;
 103                 break;
 104                 case PIPE_TEX_MIPFILTER_LINEAR:
 105                         filter |= NV34TCL_TX_FILTER_MINIFY_NEAREST_MIPMAP_LINEAR;
 106                         break;
 107                 case PIPE_TEX_MIPFILTER_NONE:
 108                 default:
 109                         filter |= NV34TCL_TX_FILTER_MINIFY_NEAREST;
 110                         break;
 111                 }
 112                 break;
 113         }
 114         return filter;
 115 }
 116
 117 static inline unsigned nvfx_tex_border_color(const float* border_color)
 118 {
 119         return ((float_to_ubyte(border_color[3]) << 24) |
 120                     (float_to_ubyte(border_color[0]) << 16) |
 121                     (float_to_ubyte(border_color[1]) <<  8) |
 122                     (float_to_ubyte(border_color[2]) <<  0));
 123 }
 124
 125 struct nvfx_sampler_state {
 126         uint32_t fmt;
 127         uint32_t wrap;
 128         uint32_t en;
 129         uint32_t filt;
 130         uint32_t bcol;
 131 };
 132
 133 #endif /* NVFX_TEX_H_ */