mesa: Kill GL_ARB_shadow_ambient with fire

No driver supports this extension, and it seems unlikely than any driver
ever will.  I think r300c may have supported it at one time, but that
driver has already been removed.

Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>

6 files changed, 0 insertions, 35 deletions

diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c
index 9cab35b0c37..1a04eebdd19 100644
--- a/src/mesa/main/attrib.c
+++ b/src/mesa/main/attrib.c
@@ -805,10 +805,6 @@ pop_texture_group(struct gl_context *ctx, struct texture_state *texstate)
             _mesa_TexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT,
                                 samp->MaxAnisotropy);
          }
-         if (ctx->Extensions.ARB_shadow_ambient) {
-            _mesa_TexParameterf(target, GL_TEXTURE_COMPARE_FAIL_VALUE_ARB,
-                                samp->CompareFailValue);
-         }
          if (ctx->Extensions.ARB_shadow) {
             _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_MODE,
                                 samp->CompareMode);
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 521fe14dba5..7f3aa940a00 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -120,7 +120,6 @@ static const struct extension extension_table[] = {
    { "GL_ARB_shader_stencil_export",               o(ARB_shader_stencil_export),               GL,             2009 },
    { "GL_ARB_shader_texture_lod",                  o(ARB_shader_texture_lod),                  GL,             2009 },
    { "GL_ARB_shading_language_100",                o(ARB_shading_language_100),                GLL,            2003 },
-   { "GL_ARB_shadow_ambient",                      o(ARB_shadow_ambient),                      GL,             2001 },
    { "GL_ARB_shadow",                              o(ARB_shadow),                              GLL,            2001 },
    { "GL_ARB_sync",                                o(ARB_sync),                                GL,             2003 },
    { "GL_ARB_texture_border_clamp",                o(ARB_texture_border_clamp),                GLL,            2000 },
@@ -427,7 +426,6 @@ _mesa_enable_sw_extensions(struct gl_context *ctx)
    ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
 #endif
    ctx->Extensions.ARB_shadow = GL_TRUE;
-   ctx->Extensions.ARB_shadow_ambient = GL_TRUE;
    ctx->Extensions.ARB_texture_border_clamp = GL_TRUE;
    ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
    ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 8fcb6b45694..552c1cf69de 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1250,7 +1250,6 @@ struct gl_sampler_object
    GLfloat MaxAnisotropy;	/**< GL_EXT_texture_filter_anisotropic */
    GLenum CompareMode;		/**< GL_ARB_shadow */
    GLenum CompareFunc;		/**< GL_ARB_shadow */
-   GLfloat CompareFailValue;    /**< GL_ARB_shadow_ambient */
    GLenum sRGBDecode;           /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
    GLboolean CubeMapSeamless;   /**< GL_AMD_seamless_cubemap_per_texture */
 };
@@ -2972,7 +2971,6 @@ struct gl_extensions
    GLboolean ARB_shader_texture_lod;
    GLboolean ARB_shading_language_100;
    GLboolean ARB_shadow;
-   GLboolean ARB_shadow_ambient;
    GLboolean ARB_sync;
    GLboolean ARB_texture_border_clamp;
    GLboolean ARB_texture_buffer_object;
diff --git a/src/mesa/main/samplerobj.c b/src/mesa/main/samplerobj.c
index dc8adfc3f72..8bf5f490a12 100644
--- a/src/mesa/main/samplerobj.c
+++ b/src/mesa/main/samplerobj.c
@@ -130,7 +130,6 @@ _mesa_init_sampler_object(struct gl_sampler_object *sampObj, GLuint name)
    sampObj->MaxAnisotropy = 1.0F;
    sampObj->CompareMode = GL_NONE;
    sampObj->CompareFunc = GL_LEQUAL;
-   sampObj->CompareFailValue = 0.0;
    sampObj->sRGBDecode = GL_DECODE_EXT;
    sampObj->CubeMapSeamless = GL_FALSE;
 }
diff --git a/src/mesa/main/texobj.c b/src/mesa/main/texobj.c
index f70da4fbc94..02e37bebc5e 100644
--- a/src/mesa/main/texobj.c
+++ b/src/mesa/main/texobj.c
@@ -144,7 +144,6 @@ _mesa_initialize_texture_object( struct gl_texture_object *obj,
    obj->Sampler.MaxAnisotropy = 1.0;
    obj->Sampler.CompareMode = GL_NONE;         /* ARB_shadow */
    obj->Sampler.CompareFunc = GL_LEQUAL;       /* ARB_shadow */
-   obj->Sampler.CompareFailValue = 0.0F;       /* ARB_shadow_ambient */
    obj->DepthMode = GL_LUMINANCE;
    obj->Sampler.CubeMapSeamless = GL_FALSE;
    obj->Swizzle[0] = GL_RED;
@@ -257,7 +256,6 @@ _mesa_copy_texture_object( struct gl_texture_object *dest,
    dest->Sampler.MaxAnisotropy = src->Sampler.MaxAnisotropy;
    dest->Sampler.CompareMode = src->Sampler.CompareMode;
    dest->Sampler.CompareFunc = src->Sampler.CompareFunc;
-   dest->Sampler.CompareFailValue = src->Sampler.CompareFailValue;
    dest->Sampler.CubeMapSeamless = src->Sampler.CubeMapSeamless;
    dest->DepthMode = src->DepthMode;
    dest->Sampler.sRGBDecode = src->Sampler.sRGBDecode;
diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index 9e7c3e45782..690fd6c2562 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -541,20 +541,6 @@ set_tex_parameterf(struct gl_context *ctx,
       }
       return GL_FALSE;
 
-   case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
-      if (ctx->Extensions.ARB_shadow_ambient) {
-         if (texObj->Sampler.CompareFailValue != params[0]) {
-            flush(ctx);
-            texObj->Sampler.CompareFailValue = CLAMP(params[0], 0.0F, 1.0F);
-            return GL_TRUE;
-         }
-      }
-      else {
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                    "glTexParameter(pname=GL_TEXTURE_COMPARE_FAIL_VALUE_ARB)");
-      }
-      return GL_FALSE;
-
    case GL_TEXTURE_LOD_BIAS:
       /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias */
       if (texObj->Sampler.LodBias != params[0]) {
@@ -1136,11 +1122,6 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
             goto invalid_pname;
          *params = obj->Sampler.MaxAnisotropy;
          break;
-      case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
-         if (!ctx->Extensions.ARB_shadow_ambient)
-            goto invalid_pname;
-         *params = obj->Sampler.CompareFailValue;
-         break;
       case GL_GENERATE_MIPMAP_SGIS:
 	 *params = (GLfloat) obj->GenerateMipmap;
          break;
@@ -1282,11 +1263,6 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
             goto invalid_pname;
          *params = (GLint) obj->Sampler.MaxAnisotropy;
          break;
-      case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
-         if (!ctx->Extensions.ARB_shadow_ambient)
-            goto invalid_pname;
-         *params = (GLint) FLOAT_TO_INT(obj->Sampler.CompareFailValue);
-         break;
       case GL_GENERATE_MIPMAP_SGIS:
 	 *params = (GLint) obj->GenerateMipmap;
          break;