Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1901 | serge | 1 | /************************************************************************** |
| 2 | * |
||
| 3 | * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. |
||
| 4 | * All Rights Reserved. |
||
| 5 | * |
||
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
||
| 7 | * copy of this software and associated documentation files (the |
||
| 8 | * "Software"), to deal in the Software without restriction, including |
||
| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
||
| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
||
| 11 | * permit persons to whom the Software is furnished to do so, subject to |
||
| 12 | * the following conditions: |
||
| 13 | * |
||
| 14 | * The above copyright notice and this permission notice (including the |
||
| 15 | * next paragraph) shall be included in all copies or substantial portions |
||
| 16 | * of the Software. |
||
| 17 | * |
||
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
||
| 19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
||
| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
||
| 21 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
||
| 22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
||
| 23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
||
| 24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
||
| 25 | * |
||
| 26 | **************************************************************************/ |
||
| 27 | |||
| 28 | /* |
||
| 29 | * Authors: |
||
| 30 | * Keith Whitwell |
||
| 31 | * Brian Paul |
||
| 32 | */ |
||
| 33 | |||
| 34 | |||
| 35 | #include "main/macros.h" |
||
| 36 | |||
| 37 | #include "st_context.h" |
||
| 38 | #include "st_cb_texture.h" |
||
| 39 | #include "st_format.h" |
||
| 40 | #include "st_atom.h" |
||
| 41 | #include "pipe/p_context.h" |
||
| 42 | #include "pipe/p_defines.h" |
||
| 43 | |||
| 44 | #include "cso_cache/cso_context.h" |
||
| 45 | |||
| 46 | |||
| 47 | /** |
||
| 48 | * Convert GLenum texcoord wrap tokens to pipe tokens. |
||
| 49 | */ |
||
| 50 | static GLuint |
||
| 51 | gl_wrap_xlate(GLenum wrap) |
||
| 52 | { |
||
| 53 | switch (wrap) { |
||
| 54 | case GL_REPEAT: |
||
| 55 | return PIPE_TEX_WRAP_REPEAT; |
||
| 56 | case GL_CLAMP: |
||
| 57 | return PIPE_TEX_WRAP_CLAMP; |
||
| 58 | case GL_CLAMP_TO_EDGE: |
||
| 59 | return PIPE_TEX_WRAP_CLAMP_TO_EDGE; |
||
| 60 | case GL_CLAMP_TO_BORDER: |
||
| 61 | return PIPE_TEX_WRAP_CLAMP_TO_BORDER; |
||
| 62 | case GL_MIRRORED_REPEAT: |
||
| 63 | return PIPE_TEX_WRAP_MIRROR_REPEAT; |
||
| 64 | case GL_MIRROR_CLAMP_EXT: |
||
| 65 | return PIPE_TEX_WRAP_MIRROR_CLAMP; |
||
| 66 | case GL_MIRROR_CLAMP_TO_EDGE_EXT: |
||
| 67 | return PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE; |
||
| 68 | case GL_MIRROR_CLAMP_TO_BORDER_EXT: |
||
| 69 | return PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER; |
||
| 70 | default: |
||
| 71 | assert(0); |
||
| 72 | return 0; |
||
| 73 | } |
||
| 74 | } |
||
| 75 | |||
| 76 | |||
| 77 | static GLuint |
||
| 78 | gl_filter_to_mip_filter(GLenum filter) |
||
| 79 | { |
||
| 80 | switch (filter) { |
||
| 81 | case GL_NEAREST: |
||
| 82 | case GL_LINEAR: |
||
| 83 | return PIPE_TEX_MIPFILTER_NONE; |
||
| 84 | |||
| 85 | case GL_NEAREST_MIPMAP_NEAREST: |
||
| 86 | case GL_LINEAR_MIPMAP_NEAREST: |
||
| 87 | return PIPE_TEX_MIPFILTER_NEAREST; |
||
| 88 | |||
| 89 | case GL_NEAREST_MIPMAP_LINEAR: |
||
| 90 | case GL_LINEAR_MIPMAP_LINEAR: |
||
| 91 | return PIPE_TEX_MIPFILTER_LINEAR; |
||
| 92 | |||
| 93 | default: |
||
| 94 | assert(0); |
||
| 95 | return PIPE_TEX_MIPFILTER_NONE; |
||
| 96 | } |
||
| 97 | } |
||
| 98 | |||
| 99 | |||
| 100 | static GLuint |
||
| 101 | gl_filter_to_img_filter(GLenum filter) |
||
| 102 | { |
||
| 103 | switch (filter) { |
||
| 104 | case GL_NEAREST: |
||
| 105 | case GL_NEAREST_MIPMAP_NEAREST: |
||
| 106 | case GL_NEAREST_MIPMAP_LINEAR: |
||
| 107 | return PIPE_TEX_FILTER_NEAREST; |
||
| 108 | |||
| 109 | case GL_LINEAR: |
||
| 110 | case GL_LINEAR_MIPMAP_NEAREST: |
||
| 111 | case GL_LINEAR_MIPMAP_LINEAR: |
||
| 112 | return PIPE_TEX_FILTER_LINEAR; |
||
| 113 | |||
| 114 | default: |
||
| 115 | assert(0); |
||
| 116 | return PIPE_TEX_FILTER_NEAREST; |
||
| 117 | } |
||
| 118 | } |
||
| 119 | |||
| 120 | |||
| 121 | static void |
||
| 122 | update_samplers(struct st_context *st) |
||
| 123 | { |
||
| 124 | struct gl_vertex_program *vprog = st->ctx->VertexProgram._Current; |
||
| 125 | struct gl_fragment_program *fprog = st->ctx->FragmentProgram._Current; |
||
| 126 | const GLbitfield samplersUsed = (vprog->Base.SamplersUsed | |
||
| 127 | fprog->Base.SamplersUsed); |
||
| 128 | GLuint su; |
||
| 129 | |||
| 130 | st->state.num_samplers = 0; |
||
| 131 | |||
| 132 | /* loop over sampler units (aka tex image units) */ |
||
| 133 | for (su = 0; su < st->ctx->Const.MaxTextureImageUnits; su++) { |
||
| 134 | struct pipe_sampler_state *sampler = st->state.samplers + su; |
||
| 135 | |||
| 136 | memset(sampler, 0, sizeof(*sampler)); |
||
| 137 | |||
| 138 | if (samplersUsed & (1 << su)) { |
||
| 139 | struct gl_texture_object *texobj; |
||
| 140 | struct gl_texture_image *teximg; |
||
| 141 | GLuint texUnit; |
||
| 142 | |||
| 143 | if (fprog->Base.SamplersUsed & (1 << su)) |
||
| 144 | texUnit = fprog->Base.SamplerUnits[su]; |
||
| 145 | else |
||
| 146 | texUnit = vprog->Base.SamplerUnits[su]; |
||
| 147 | |||
| 148 | texobj = st->ctx->Texture.Unit[texUnit]._Current; |
||
| 149 | if (!texobj) { |
||
| 150 | texobj = st_get_default_texture(st); |
||
| 151 | } |
||
| 152 | |||
| 153 | teximg = texobj->Image[0][texobj->BaseLevel]; |
||
| 154 | |||
| 155 | sampler->wrap_s = gl_wrap_xlate(texobj->WrapS); |
||
| 156 | sampler->wrap_t = gl_wrap_xlate(texobj->WrapT); |
||
| 157 | sampler->wrap_r = gl_wrap_xlate(texobj->WrapR); |
||
| 158 | |||
| 159 | sampler->min_img_filter = gl_filter_to_img_filter(texobj->MinFilter); |
||
| 160 | sampler->min_mip_filter = gl_filter_to_mip_filter(texobj->MinFilter); |
||
| 161 | sampler->mag_img_filter = gl_filter_to_img_filter(texobj->MagFilter); |
||
| 162 | |||
| 163 | if (texobj->Target != GL_TEXTURE_RECTANGLE_ARB) |
||
| 164 | sampler->normalized_coords = 1; |
||
| 165 | |||
| 166 | sampler->lod_bias = st->ctx->Texture.Unit[su].LodBias; |
||
| 167 | |||
| 168 | sampler->min_lod = texobj->BaseLevel + texobj->MinLod; |
||
| 169 | if (sampler->min_lod < texobj->BaseLevel) |
||
| 170 | sampler->min_lod = texobj->BaseLevel; |
||
| 171 | |||
| 172 | sampler->max_lod = MIN2((GLfloat) texobj->MaxLevel, |
||
| 173 | (texobj->MaxLod + texobj->BaseLevel)); |
||
| 174 | if (sampler->max_lod < sampler->min_lod) { |
||
| 175 | /* The GL spec doesn't seem to specify what to do in this case. |
||
| 176 | * Swap the values. |
||
| 177 | */ |
||
| 178 | float tmp = sampler->max_lod; |
||
| 179 | sampler->max_lod = sampler->min_lod; |
||
| 180 | sampler->min_lod = tmp; |
||
| 181 | assert(sampler->min_lod <= sampler->max_lod); |
||
| 182 | } |
||
| 183 | |||
| 184 | st_translate_color(texobj->BorderColor.f, |
||
| 185 | teximg ? teximg->_BaseFormat : GL_RGBA, |
||
| 186 | sampler->border_color); |
||
| 187 | |||
| 188 | sampler->max_anisotropy = (texobj->MaxAnisotropy == 1.0 ? 0 : (GLuint)texobj->MaxAnisotropy); |
||
| 189 | |||
| 190 | /* only care about ARB_shadow, not SGI shadow */ |
||
| 191 | if (texobj->CompareMode == GL_COMPARE_R_TO_TEXTURE) { |
||
| 192 | sampler->compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE; |
||
| 193 | sampler->compare_func |
||
| 194 | = st_compare_func_to_pipe(texobj->CompareFunc); |
||
| 195 | } |
||
| 196 | |||
| 197 | st->state.num_samplers = su + 1; |
||
| 198 | |||
| 199 | /*printf("%s su=%u non-null\n", __FUNCTION__, su);*/ |
||
| 200 | cso_single_sampler(st->cso_context, su, sampler); |
||
| 201 | if (su < st->ctx->Const.MaxVertexTextureImageUnits) { |
||
| 202 | cso_single_vertex_sampler(st->cso_context, su, sampler); |
||
| 203 | } |
||
| 204 | } |
||
| 205 | else { |
||
| 206 | /*printf("%s su=%u null\n", __FUNCTION__, su);*/ |
||
| 207 | cso_single_sampler(st->cso_context, su, NULL); |
||
| 208 | if (su < st->ctx->Const.MaxVertexTextureImageUnits) { |
||
| 209 | cso_single_vertex_sampler(st->cso_context, su, NULL); |
||
| 210 | } |
||
| 211 | } |
||
| 212 | } |
||
| 213 | |||
| 214 | cso_single_sampler_done(st->cso_context); |
||
| 215 | if (st->ctx->Const.MaxVertexTextureImageUnits > 0) { |
||
| 216 | cso_single_vertex_sampler_done(st->cso_context); |
||
| 217 | } |
||
| 218 | } |
||
| 219 | |||
| 220 | |||
| 221 | const struct st_tracked_state st_update_sampler = { |
||
| 222 | "st_update_sampler", /* name */ |
||
| 223 | { /* dirty */ |
||
| 224 | _NEW_TEXTURE, /* mesa */ |
||
| 225 | 0, /* st */ |
||
| 226 | }, |
||
| 227 | update_samplers /* update */ |
||
| 228 | }; |