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authorKeith Whitwell <keithw@vmware.com>2009-05-31 19:03:02 -0700
committerKeith Whitwell <keithw@vmware.com>2009-06-30 16:13:53 +0100
commit79047cc1ddf0332e5b64c9f05a19885cc36c76ae (patch)
treef6255161b4333d3a2adc726686a09f6c23acb9ba
parentf6c8ca06f649ae1367f61eca6fb7635862bd5584 (diff)
mesa: remove dead vertex fog code from ffvertex_prog.c
-rw-r--r--src/mesa/main/ffvertex_prog.c87
1 files changed, 3 insertions, 84 deletions
diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c
index b939401de1..a8e48253a5 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)