diff options
Diffstat (limited to 'src/mesa/main/fog.c')
| -rw-r--r-- | src/mesa/main/fog.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/src/mesa/main/fog.c b/src/mesa/main/fog.c index fd64bd1fd89..88aa31a7fcb 100644 --- a/src/mesa/main/fog.c +++ b/src/mesa/main/fog.c @@ -79,12 +79,17 @@ _mesa_Fogiv(GLenum pname, const GLint *params ) } -#define UPDATE_FOG_SCALE(ctx) do {\ - if (ctx->Fog.End == ctx->Fog.Start)\ - ctx->Fog._Scale = 1.0f;\ - else\ - ctx->Fog._Scale = 1.0f / (ctx->Fog.End - ctx->Fog.Start);\ - } while(0) +/** + * Update the gl_fog_attrib::_Scale field. + */ +static void +update_fog_scale(struct gl_context *ctx) +{ + if (ctx->Fog.End == ctx->Fog.Start) + ctx->Fog._Scale = 1.0f; + else + ctx->Fog._Scale = 1.0f / (ctx->Fog.End - ctx->Fog.Start); +} void GLAPIENTRY @@ -126,14 +131,14 @@ _mesa_Fogfv( GLenum pname, const GLfloat *params ) return; FLUSH_VERTICES(ctx, _NEW_FOG); ctx->Fog.Start = *params; - UPDATE_FOG_SCALE(ctx); + update_fog_scale(ctx); break; case GL_FOG_END: if (ctx->Fog.End == *params) return; FLUSH_VERTICES(ctx, _NEW_FOG); ctx->Fog.End = *params; - UPDATE_FOG_SCALE(ctx); + update_fog_scale(ctx); break; case GL_FOG_INDEX: if (ctx->Fog.Index == *params) @@ -145,6 +150,10 @@ _mesa_Fogfv( GLenum pname, const GLfloat *params ) if (TEST_EQ_4V(ctx->Fog.Color, params)) return; FLUSH_VERTICES(ctx, _NEW_FOG); + ctx->Fog.ColorUnclamped[0] = params[0]; + ctx->Fog.ColorUnclamped[1] = params[1]; + ctx->Fog.ColorUnclamped[2] = params[2]; + ctx->Fog.ColorUnclamped[3] = params[3]; ctx->Fog.Color[0] = CLAMP(params[0], 0.0F, 1.0F); ctx->Fog.Color[1] = CLAMP(params[1], 0.0F, 1.0F); ctx->Fog.Color[2] = CLAMP(params[2], 0.0F, 1.0F); @@ -184,6 +193,7 @@ void _mesa_init_fog( struct gl_context * ctx ) ctx->Fog.Enabled = GL_FALSE; ctx->Fog.Mode = GL_EXP; ASSIGN_4V( ctx->Fog.Color, 0.0, 0.0, 0.0, 0.0 ); + ASSIGN_4V( ctx->Fog.ColorUnclamped, 0.0, 0.0, 0.0, 0.0 ); ctx->Fog.Index = 0.0; ctx->Fog.Density = 1.0; ctx->Fog.Start = 0.0; |