diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/main/ffvertex_prog.c | 87 |
1 files changed, 3 insertions, 84 deletions
diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c index b939401de10..a8e48253a5d 100644 --- a/src/mesa/main/ffvertex_prog.c +++ b/src/mesa/main/ffvertex_prog.c @@ -57,9 +57,7 @@ struct state_key { unsigned rescale_normals:1; unsigned fog_source_is_depth:1; - unsigned tnl_do_vertex_fog:1; unsigned separate_specular:1; - unsigned fog_mode:2; unsigned point_attenuated:1; unsigned point_array:1; unsigned texture_enabled_global:1; @@ -83,23 +81,6 @@ struct state_key { }; - -#define FOG_NONE 0 -#define FOG_LINEAR 1 -#define FOG_EXP 2 -#define FOG_EXP2 3 - -static GLuint translate_fog_mode( GLenum mode ) -{ - switch (mode) { - case GL_LINEAR: return FOG_LINEAR; - case GL_EXP: return FOG_EXP; - case GL_EXP2: return FOG_EXP2; - default: return FOG_NONE; - } -} - - #define TXG_NONE 0 #define TXG_OBJ_LINEAR 1 #define TXG_EYE_LINEAR 2 @@ -124,21 +105,6 @@ static GLuint translate_texgen( GLboolean enabled, GLenum mode ) -/** - * Should fog be computed per-vertex? - */ -static GLboolean -tnl_get_per_vertex_fog(GLcontext *ctx) -{ -#if 0 - TNLcontext *tnl = TNL_CONTEXT(ctx); - return tnl->_DoVertexFog; -#else - return GL_FALSE; -#endif -} - - static GLboolean check_active_shininess( GLcontext *ctx, const struct state_key *key, GLuint side ) @@ -234,12 +200,8 @@ static void make_state_key( GLcontext *ctx, struct state_key *key ) if (ctx->Transform.RescaleNormals) key->rescale_normals = 1; - key->fog_mode = translate_fog_mode(fp->FogOption); - if (ctx->Fog.FogCoordinateSource == GL_FRAGMENT_DEPTH_EXT) key->fog_source_is_depth = 1; - - key->tnl_do_vertex_fog = tnl_get_per_vertex_fog(ctx); if (ctx->Point._Attenuated) key->point_attenuated = 1; @@ -1344,52 +1306,10 @@ static void build_fog( struct tnl_program *p ) input = swizzle1(register_input(p, VERT_ATTRIB_FOG), X); } - if (p->state->fog_mode && p->state->tnl_do_vertex_fog) { - struct ureg params = register_param2(p, STATE_INTERNAL, - STATE_FOG_PARAMS_OPTIMIZED); - struct ureg tmp = get_temp(p); - GLboolean useabs = (p->state->fog_mode != FOG_EXP2); - - if (useabs) { - emit_op1(p, OPCODE_ABS, tmp, 0, input); - } - - switch (p->state->fog_mode) { - case FOG_LINEAR: { - struct ureg id = get_identity_param(p); - emit_op3(p, OPCODE_MAD, tmp, 0, useabs ? tmp : input, - swizzle1(params,X), swizzle1(params,Y)); - emit_op2(p, OPCODE_MAX, tmp, 0, tmp, swizzle1(id,X)); /* saturate */ - emit_op2(p, OPCODE_MIN, fog, WRITEMASK_X, tmp, swizzle1(id,W)); - break; - } - case FOG_EXP: - emit_op2(p, OPCODE_MUL, tmp, 0, useabs ? tmp : input, - swizzle1(params,Z)); - emit_op1(p, OPCODE_EX2, fog, WRITEMASK_X, negate(tmp)); - break; - case FOG_EXP2: - emit_op2(p, OPCODE_MUL, tmp, 0, input, swizzle1(params,W)); - emit_op2(p, OPCODE_MUL, tmp, 0, tmp, tmp); - emit_op1(p, OPCODE_EX2, fog, WRITEMASK_X, negate(tmp)); - break; - } - - release_temp(p, tmp); - } - else { - /* results = incoming fog coords (compute fog per-fragment later) - * - * KW: Is it really necessary to do anything in this case? - * BP: Yes, we always need to compute the absolute value, unless - * we want to push that down into the fragment program... - */ - GLboolean useabs = GL_TRUE; - emit_op1(p, useabs ? OPCODE_ABS : OPCODE_MOV, fog, WRITEMASK_X, input); - } + emit_op1(p, OPCODE_ABS, fog, WRITEMASK_X, input); } - + static void build_reflect_texgen( struct tnl_program *p, struct ureg dest, GLuint writemask ) @@ -1646,8 +1566,7 @@ static void build_tnl_program( struct tnl_program *p ) } } - if ((p->state->fragprog_inputs_read & FRAG_BIT_FOGC) || - p->state->fog_mode != FOG_NONE) + if (p->state->fragprog_inputs_read & FRAG_BIT_FOGC) build_fog(p); if (p->state->fragprog_inputs_read & FRAG_BITS_TEX_ANY) |