From 7b559a91028d297b34df9ec939bd4d00fad6027c Mon Sep 17 00:00:00 2001
From: Ian Romanick <idr@us.ibm.com>
Date: Thu, 7 Jun 2007 13:58:50 -0700
Subject: Add support for GL_ARB_fragment_program_shadow.

---
 src/mesa/main/extensions.c | 2 ++
 src/mesa/main/mtypes.h     | 2 ++
 src/mesa/main/texstate.c   | 2 ++
 3 files changed, 6 insertions(+)

(limited to 'src/mesa/main')

diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index a4a6cdae36..80dce56c0c 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -47,6 +47,7 @@ static const struct {
    { OFF, "GL_ARB_depth_texture",              F(ARB_depth_texture) },
    { OFF, "GL_ARB_draw_buffers",               F(ARB_draw_buffers) },
    { OFF, "GL_ARB_fragment_program",           F(ARB_fragment_program) },
+   { OFF, "GL_ARB_fragment_program_shadow",    F(ARB_fragment_program_shadow) },
    { OFF, "GL_ARB_fragment_shader",            F(ARB_fragment_shader) },
    { OFF, "GL_ARB_half_float_pixel",           F(ARB_half_float_pixel) },
    { OFF, "GL_ARB_imaging",                    F(ARB_imaging) },
@@ -184,6 +185,7 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
    ctx->Extensions.ARB_draw_buffers = GL_TRUE;
 #if FEATURE_ARB_fragment_program
    ctx->Extensions.ARB_fragment_program = GL_TRUE;
+   ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE;
 #endif
 #if FEATURE_ARB_fragment_shader
    ctx->Extensions.ARB_fragment_shader = GL_TRUE;
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 6cbbf145a1..49332501d2 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1903,6 +1903,7 @@ struct gl_program
    GLbitfield InputsRead;     /**< Bitmask of which input regs are read */
    GLbitfield OutputsWritten; /**< Bitmask of which output regs are written to */
    GLbitfield TexturesUsed[MAX_TEXTURE_IMAGE_UNITS];  /**< TEXTURE_x_BIT bitmask */
+   GLbitfield ShadowSamplers; /**< Texture units used for shadow sampling. */
 
    /** Named parameters, constants, etc. from program text */
    struct gl_program_parameter_list *Parameters;
@@ -2532,6 +2533,7 @@ struct gl_extensions
    GLboolean ARB_depth_texture;
    GLboolean ARB_draw_buffers;
    GLboolean ARB_fragment_program;
+   GLboolean ARB_fragment_program_shadow;
    GLboolean ARB_fragment_shader;
    GLboolean ARB_half_float_pixel;
    GLboolean ARB_imaging;
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c
index fb02443779..18afaf4edd 100644
--- a/src/mesa/main/texstate.c
+++ b/src/mesa/main/texstate.c
@@ -1527,6 +1527,8 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
                           "glTexParameter(bad GL_DEPTH_TEXTURE_MODE_ARB)");
                return;
             }
+
+	    _mesa_update_texture_compare_function(texObj, GL_FALSE);
          }
          else {
             _mesa_error(ctx, GL_INVALID_ENUM,
-- 
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