Merge commit 'origin/gallium-0.2' into gallium-xlib-rework

Conflicts:

	progs/glsl/Makefile

22 files changed, 294 insertions, 157 deletions

diff --git a/src/mesa/main/arrayobj.c b/src/mesa/main/arrayobj.c
index 1461239317..f3f482f8c8 100644
--- a/src/mesa/main/arrayobj.c
+++ b/src/mesa/main/arrayobj.c
@@ -142,7 +142,7 @@ _mesa_initialize_array_object( GLcontext *ctx,
    obj->Index.StrideB = 0;
    obj->Index.Ptr = NULL;
    obj->Index.Enabled = GL_FALSE;
-   for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
+   for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {
       obj->TexCoord[i].Size = 4;
       obj->TexCoord[i].Type = GL_FLOAT;
       obj->TexCoord[i].Stride = 0;
@@ -181,7 +181,7 @@ _mesa_initialize_array_object( GLcontext *ctx,
    obj->SecondaryColor.BufferObj = ctx->Array.NullBufferObj;
    obj->FogCoord.BufferObj = ctx->Array.NullBufferObj;
    obj->Index.BufferObj = ctx->Array.NullBufferObj;
-   for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
+   for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {
       obj->TexCoord[i].BufferObj = ctx->Array.NullBufferObj;
    }
    obj->EdgeFlag.BufferObj = ctx->Array.NullBufferObj;
@@ -335,7 +335,7 @@ _mesa_DeleteVertexArraysAPPLE(GLsizei n, const GLuint *ids)
 	 unbind_buffer_object( ctx, obj->SecondaryColor.BufferObj );
 	 unbind_buffer_object( ctx, obj->FogCoord.BufferObj );
 	 unbind_buffer_object( ctx, obj->Index.BufferObj );
-	 for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
+	 for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {
 	    unbind_buffer_object( ctx, obj->TexCoord[i].BufferObj );
 	 }
 	 unbind_buffer_object( ctx, obj->EdgeFlag.BufferObj );
diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c
index dc85da2518..825c841ee2 100644
--- a/src/mesa/main/attrib.c
+++ b/src/mesa/main/attrib.c
@@ -1,8 +1,9 @@
 /*
  * Mesa 3-D graphics library
- * Version:  7.2
+ * Version:  7.3
  *
  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ * Copyright (C) 2009  VMware, Inc.   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -224,7 +225,7 @@ _mesa_PushAttrib(GLbitfield mask)
       attr->SampleAlphaToOne = ctx->Multisample.SampleAlphaToOne;
       attr->SampleCoverage = ctx->Multisample.SampleCoverage;
       attr->SampleCoverageInvert = ctx->Multisample.SampleCoverageInvert;
-      for (i=0; i<MAX_TEXTURE_UNITS; i++) {
+      for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
          attr->Texture[i] = ctx->Texture.Unit[i].Enabled;
          attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled;
          attr->TextureColorTable[i] = ctx->Texture.Unit[i].ColorTableEnabled;
diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index 190e6ab564..016543da01 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -808,7 +808,7 @@ _mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids)
          unbind(ctx, &ctx->Array.ArrayObj->FogCoord.BufferObj, bufObj);
          unbind(ctx, &ctx->Array.ArrayObj->Index.BufferObj, bufObj);
          unbind(ctx, &ctx->Array.ArrayObj->EdgeFlag.BufferObj, bufObj);
-         for (j = 0; j < MAX_TEXTURE_UNITS; j++) {
+         for (j = 0; j < MAX_TEXTURE_COORD_UNITS; j++) {
             unbind(ctx, &ctx->Array.ArrayObj->TexCoord[j].BufferObj, bufObj);
          }
          for (j = 0; j < VERT_ATTRIB_MAX; j++) {
diff --git a/src/mesa/main/config.h b/src/mesa/main/config.h
index e29964a1e8..c3feffda98 100644
--- a/src/mesa/main/config.h
+++ b/src/mesa/main/config.h
@@ -1,13 +1,9 @@
-/**
- * \file config.h
- * Tunable configuration parameters.
- */
-
 /*
  * Mesa 3-D graphics library
- * Version:  7.1
+ * Version:  7.3
  *
  * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
+ * Copyright (C) 2008  VMware, Inc.  All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -27,6 +23,10 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
+/**
+ * \file config.h
+ * Tunable configuration parameters.
+ */
 
 #ifndef MESA_CONFIG_H_INCLUDED
 #define MESA_CONFIG_H_INCLUDED
@@ -115,27 +115,28 @@
 /** Maximum number of layers in a 1D or 2D array texture - GL_MESA_texture_array */
 #define MAX_ARRAY_TEXTURE_LAYERS 64
 
-/** Number of texture units - GL_ARB_multitexture
- * This needs to be the larger of MAX_TEXTURE_COORD_UNITS and
- * MAX_TEXTURE_IMAGE_UNITS seen below, since MAX_TEXTURE_UNITS is used
- * to dimension some arrays that store both coord and image data.
-*/
-#define MAX_TEXTURE_UNITS 8
-
-/*@}*/
+/**
+ * Max number of texture coordinate units.  This mainly just applies to
+ * the fixed-function vertex code.  This will be difficult to raise above
+ * eight because of various vertex attribute bitvectors.
+ */
+#define MAX_TEXTURE_COORD_UNITS 8
 
+/**
+ * Max number of texture image units.  Also determines number of texture
+ * samplers in shaders.
+ */
+#define MAX_TEXTURE_IMAGE_UNITS 16
 
 /**
- * \name Separate numbers of texture coordinates and texture image units.
- *
- * These values will eventually replace most instances of MAX_TEXTURE_UNITS.
- * We should always have MAX_TEXTURE_COORD_UNITS <= MAX_TEXTURE_IMAGE_UNITS.
- * And, GL_MAX_TEXTURE_UNITS <= MAX_TEXTURE_COORD_UNITS.
+ * Larger of MAX_TEXTURE_COORD_UNITS and MAX_TEXTURE_IMAGE_UNITS.
+ * This value is only used for dimensioning arrays.
+ * Either MAX_TEXTURE_COORD_UNITS or MAX_TEXTURE_IMAGE_UNITS (or the
+ * corresponding ctx->Const.MaxTextureCoord/ImageUnits fields) should be
+ * used almost everywhere else.
  */
-/*@{*/
-#define MAX_TEXTURE_COORD_UNITS 8
-#define MAX_TEXTURE_IMAGE_UNITS 8
-/*@}*/
+#define MAX_TEXTURE_UNITS ((MAX_TEXTURE_COORD_UNITS > MAX_TEXTURE_IMAGE_UNITS) ? MAX_TEXTURE_COORD_UNITS : MAX_TEXTURE_IMAGE_UNITS)
+
 
 /** 
  * Maximum viewport/image width. Must accomodate all texture sizes too. 
@@ -181,16 +182,16 @@
 /** For any program target/extension */
 /*@{*/
 #define MAX_PROGRAM_INSTRUCTIONS  (16 * 1024)
-#define MAX_PROGRAM_LOCAL_PARAMS 128 /* KW: power of two */
+#define MAX_PROGRAM_LOCAL_PARAMS 256 /**< per-program constants (power of two) */
 #define MAX_PROGRAM_ENV_PARAMS 128
 #define MAX_PROGRAM_MATRICES 8
 #define MAX_PROGRAM_MATRIX_STACK_DEPTH 4
 #define MAX_PROGRAM_CALL_DEPTH 8
 #define MAX_PROGRAM_TEMPS 128
 #define MAX_PROGRAM_ADDRESS_REGS 2
-#define MAX_UNIFORMS 128   /**< number of float components */
+#define MAX_UNIFORMS 256   /**< number of vec4 uniforms */
 #define MAX_VARYING 8      /**< number of float[4] vectors */
-#define MAX_SAMPLERS 8
+#define MAX_SAMPLERS MAX_TEXTURE_IMAGE_UNITS
 #define MAX_PROGRAM_INPUTS 32
 #define MAX_PROGRAM_OUTPUTS 32
 /*@}*/
@@ -218,8 +219,8 @@
 /** For GL_ARB_vertex_shader */
 /*@{*/
 #define MAX_VERTEX_ATTRIBS 16
-#define MAX_VERTEX_TEXTURE_IMAGE_UNITS MAX_TEXTURE_UNITS
-#define MAX_COMBINED_TEXTURE_IMAGE_UNITS (MAX_TEXTURE_IMAGE_UNITS + MAX_VERTEX_TEXTURE_IMAGE_UNITS)
+#define MAX_VERTEX_TEXTURE_IMAGE_UNITS MAX_TEXTURE_IMAGE_UNITS
+#define MAX_COMBINED_TEXTURE_IMAGE_UNITS MAX_TEXTURE_IMAGE_UNITS
 /*@}*/
 
 
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 61c0861cbd..ea52b26f0f 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1,14 +1,9 @@
-/**
- * \file context.c
- * Mesa context/visual/framebuffer management functions.
- * \author Brian Paul
- */
-
 /*
  * Mesa 3-D graphics library
- * Version:  7.1
+ * Version:  7.3
  *
  * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
+ * Copyright (C) 2008  VMware, Inc.  All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -28,6 +23,11 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
+/**
+ * \file context.c
+ * Mesa context/visual/framebuffer management functions.
+ * \author Brian Paul
+ */
 
 /**
  * \mainpage Mesa Main Module
@@ -870,9 +870,6 @@ _mesa_init_constants(GLcontext *ctx)
    assert(MAX_TEXTURE_LEVELS >= MAX_3D_TEXTURE_LEVELS);
    assert(MAX_TEXTURE_LEVELS >= MAX_CUBE_TEXTURE_LEVELS);
 
-   assert(MAX_TEXTURE_UNITS >= MAX_TEXTURE_COORD_UNITS);
-   assert(MAX_TEXTURE_UNITS >= MAX_TEXTURE_IMAGE_UNITS);
-
    /* Constants, may be overriden (usually only reduced) by device drivers */
    ctx->Const.MaxTextureLevels = MAX_TEXTURE_LEVELS;
    ctx->Const.Max3DTextureLevels = MAX_3D_TEXTURE_LEVELS;
@@ -963,6 +960,9 @@ check_context_limits(GLcontext *ctx)
    assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_IMAGE_UNITS);
    assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_COORD_UNITS);
 
+   /* number of coord units cannot be greater than number of image units */
+   assert(ctx->Const.MaxTextureCoordUnits <= ctx->Const.MaxTextureImageUnits);
+
    assert(ctx->Const.MaxViewportWidth <= MAX_WIDTH);
    assert(ctx->Const.MaxViewportHeight <= MAX_WIDTH);
 
diff --git a/src/mesa/main/dlopen.c b/src/mesa/main/dlopen.c
index becef8173e..8bc83c094f 100644
--- a/src/mesa/main/dlopen.c
+++ b/src/mesa/main/dlopen.c
@@ -48,7 +48,7 @@ _mesa_dlopen(const char *libname, int flags)
    flags = RTLD_LAZY | RTLD_GLOBAL; /* Overriding flags at this time */
    return dlopen(libname, flags);
 #elif defined(__MINGW32__)
-   return LoadLibrary(libname);
+   return LoadLibraryA(libname);
 #else
    return NULL;
 #endif
diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c
index 248df1badc..72ed50808c 100644
--- a/src/mesa/main/enable.c
+++ b/src/mesa/main/enable.c
@@ -201,6 +201,26 @@ _mesa_DisableClientState( GLenum cap )
    }
 
 
+
+/**
+ * Return pointer to current texture unit for setting/getting coordinate
+ * state.
+ * Note that we'll set GL_INVALID_OPERATION if the active texture unit is
+ * higher than the number of supported coordinate units.  And we'll return NULL.
+ */
+static struct gl_texture_unit *
+get_texcoord_unit(GLcontext *ctx)
+{
+   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glEnable/Disable(texcoord unit)");
+      return NULL;
+   }
+   else {
+      return &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+   }
+}
+
+
 /**
  * Helper function to enable or disable a texture target.
  */
@@ -612,54 +632,62 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state)
             return;
          }
          break;
-      case GL_TEXTURE_GEN_Q: {
-         GLuint unit = ctx->Texture.CurrentUnit;
-         struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
-         GLuint newenabled = texUnit->TexGenEnabled & ~Q_BIT;
-         if (state)
-            newenabled |= Q_BIT;
-         if (texUnit->TexGenEnabled == newenabled)
-            return;
-         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-         texUnit->TexGenEnabled = newenabled;
+      case GL_TEXTURE_GEN_Q:
+         {
+            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               GLuint newenabled = texUnit->TexGenEnabled & ~Q_BIT;
+               if (state)
+                  newenabled |= Q_BIT;
+               if (texUnit->TexGenEnabled == newenabled)
+                  return;
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texUnit->TexGenEnabled = newenabled;
+            }
+         }
          break;
-      }
-      case GL_TEXTURE_GEN_R: {
-         GLuint unit = ctx->Texture.CurrentUnit;
-         struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
-         GLuint newenabled = texUnit->TexGenEnabled & ~R_BIT;
-         if (state)
-            newenabled |= R_BIT;
-         if (texUnit->TexGenEnabled == newenabled)
-            return;
-         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-         texUnit->TexGenEnabled = newenabled;
+      case GL_TEXTURE_GEN_R:
+         {
+            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               GLuint newenabled = texUnit->TexGenEnabled & ~R_BIT;
+               if (state)
+                  newenabled |= R_BIT;
+               if (texUnit->TexGenEnabled == newenabled)
+                  return;
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texUnit->TexGenEnabled = newenabled;
+            }
+         }
          break;
-      }
-      case GL_TEXTURE_GEN_S: {
-         GLuint unit = ctx->Texture.CurrentUnit;
-         struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
-         GLuint newenabled = texUnit->TexGenEnabled & ~S_BIT;
-         if (state)
-            newenabled |= S_BIT;
-         if (texUnit->TexGenEnabled == newenabled)
-            return;
-         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-         texUnit->TexGenEnabled = newenabled;
+      case GL_TEXTURE_GEN_S:
+         {
+            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               GLuint newenabled = texUnit->TexGenEnabled & ~S_BIT;
+               if (state)
+                  newenabled |= S_BIT;
+               if (texUnit->TexGenEnabled == newenabled)
+                  return;
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texUnit->TexGenEnabled = newenabled;
+            }
+         }
          break;
-      }
-      case GL_TEXTURE_GEN_T: {
-         GLuint unit = ctx->Texture.CurrentUnit;
-         struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
-         GLuint newenabled = texUnit->TexGenEnabled & ~T_BIT;
-         if (state)
-            newenabled |= T_BIT;
-         if (texUnit->TexGenEnabled == newenabled)
-            return;
-         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-         texUnit->TexGenEnabled = newenabled;
+      case GL_TEXTURE_GEN_T:
+         {
+            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               GLuint newenabled = texUnit->TexGenEnabled & ~T_BIT;
+               if (state)
+                  newenabled |= T_BIT;
+               if (texUnit->TexGenEnabled == newenabled)
+                  return;
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texUnit->TexGenEnabled = newenabled;
+            }
+         }
          break;
-      }
 
       /*
        * CLIENT STATE!!!
@@ -1155,28 +1183,36 @@ _mesa_IsEnabled( GLenum cap )
          return is_texture_enabled(ctx, TEXTURE_3D_BIT);
       case GL_TEXTURE_GEN_Q:
          {
-            const struct gl_texture_unit *texUnit;
-            texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
-            return (texUnit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE;
+            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               return (texUnit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE;
+            }
          }
+         return GL_FALSE;
       case GL_TEXTURE_GEN_R:
          {
-            const struct gl_texture_unit *texUnit;
-            texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
-            return (texUnit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE;
+            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               return (texUnit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE;
+            }
          }
+         return GL_FALSE;
       case GL_TEXTURE_GEN_S:
          {
-            const struct gl_texture_unit *texUnit;
-            texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
-            return (texUnit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE;
+            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               return (texUnit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE;
+            }
          }
+         return GL_FALSE;
       case GL_TEXTURE_GEN_T:
          {
-            const struct gl_texture_unit *texUnit;
-            texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
-            return (texUnit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE;
+            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               return (texUnit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE;
+            }
          }
+         return GL_FALSE;
 
       /*
        * CLIENT STATE!!!
diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c
index ec0a5e3896..d70b78f258 100644
--- a/src/mesa/main/ffvertex_prog.c
+++ b/src/mesa/main/ffvertex_prog.c
@@ -26,7 +26,7 @@
  **************************************************************************/
 
 /**
- * \file ffvertex_prog.
+ * \file ffvertex_prog.c
  *
  * Create a vertex program to execute the current fixed function T&L pipeline.
  * \author Keith Whitwell
@@ -101,6 +101,7 @@ static GLuint translate_fog_mode( GLenum mode )
    }
 }
 
+
 #define TXG_NONE           0
 #define TXG_OBJ_LINEAR     1
 #define TXG_EYE_LINEAR     2
@@ -145,6 +146,7 @@ tnl_get_per_vertex_materials(GLcontext *ctx)
    return mask;
 }
 
+
 /**
  * Should fog be computed per-vertex?
  */
@@ -159,6 +161,7 @@ tnl_get_per_vertex_fog(GLcontext *ctx)
 #endif
 }
 
+
 static GLboolean check_active_shininess( GLcontext *ctx,
                                          const struct state_key *key,
                                          GLuint side )
@@ -176,8 +179,6 @@ static GLboolean check_active_shininess( GLcontext *ctx,
 
    return GL_FALSE;
 }
-     
-
 
 
 static void make_state_key( GLcontext *ctx, struct state_key *key )
@@ -278,7 +279,7 @@ static void make_state_key( GLcontext *ctx, struct state_key *key )
        ctx->Texture._EnabledUnits)
       key->texture_enabled_global = 1;
       
-   for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
+   for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {
       struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i];
 
       if (texUnit->_ReallyEnabled)
@@ -410,11 +411,13 @@ static struct ureg swizzle( struct ureg reg, int x, int y, int z, int w )
    return reg;
 }
 
+
 static struct ureg swizzle1( struct ureg reg, int x )
 {
    return swizzle(reg, x, x, x, x);
 }
 
+
 static struct ureg get_temp( struct tnl_program *p )
 {
    int bit = _mesa_ffs( ~p->temp_in_use );
@@ -430,6 +433,7 @@ static struct ureg get_temp( struct tnl_program *p )
    return make_ureg(PROGRAM_TEMPORARY, bit-1);
 }
 
+
 static struct ureg reserve_temp( struct tnl_program *p )
 {
    struct ureg temp = get_temp( p );
@@ -437,6 +441,7 @@ static struct ureg reserve_temp( struct tnl_program *p )
    return temp;
 }
 
+
 static void release_temp( struct tnl_program *p, struct ureg reg )
 {
    if (reg.file == PROGRAM_TEMPORARY) {
@@ -493,6 +498,7 @@ static struct ureg register_input( struct tnl_program *p, GLuint input )
    }
 }
 
+
 /**
  * \param input  one of VERT_RESULT_x tokens.
  */
@@ -502,6 +508,7 @@ static struct ureg register_output( struct tnl_program *p, GLuint output )
    return make_ureg(PROGRAM_OUTPUT, output);
 }
 
+
 static struct ureg register_const4f( struct tnl_program *p, 
 			      GLfloat s0,
 			      GLfloat s1,
@@ -531,6 +538,7 @@ static GLboolean is_undef( struct ureg reg )
    return reg.file == PROGRAM_UNDEFINED;
 }
 
+
 static struct ureg get_identity_param( struct tnl_program *p )
 {
    if (is_undef(p->identity)) 
@@ -571,6 +579,7 @@ static void emit_arg( struct prog_src_register *src,
    ASSERT(src->Index == reg.idx);
 }
 
+
 static void emit_dst( struct prog_dst_register *dst,
 		      struct ureg reg, GLuint mask )
 {
@@ -586,6 +595,7 @@ static void emit_dst( struct prog_dst_register *dst,
    ASSERT(dst->Index == reg.idx);
 }
 
+
 static void debug_insn( struct prog_instruction *inst, const char *fn,
 			GLuint line )
 {
@@ -696,6 +706,7 @@ static void emit_matrix_transform_vec4( struct tnl_program *p,
    emit_op2(p, OPCODE_DP4, dest, WRITEMASK_W, src, mat[3]);
 }
 
+
 /* This version is much easier to implement if writemasks are not
  * supported natively on the target or (like SSE), the target doesn't
  * have a clean/obvious dotproduct implementation.
@@ -721,6 +732,7 @@ static void emit_transpose_matrix_transform_vec4( struct tnl_program *p,
       release_temp(p, tmp);
 }
 
+
 static void emit_matrix_transform_vec3( struct tnl_program *p,
 					struct ureg dest,
 					const struct ureg *mat,
@@ -748,6 +760,7 @@ static void emit_normalize_vec3( struct tnl_program *p,
 #endif
 }
 
+
 static void emit_passthrough( struct tnl_program *p, 
 			      GLuint input,
 			      GLuint output )
@@ -756,6 +769,7 @@ static void emit_passthrough( struct tnl_program *p,
    emit_op1(p, OPCODE_MOV, out, 0, register_input(p, input)); 
 }
 
+
 static struct ureg get_eye_position( struct tnl_program *p )
 {
    if (is_undef(p->eye_position)) {
@@ -803,7 +817,6 @@ static struct ureg get_eye_position_z( struct tnl_program *p )
 }
    
 
-
 static struct ureg get_eye_position_normalized( struct tnl_program *p )
 {
    if (is_undef(p->eye_position_normalized)) {
@@ -865,7 +878,6 @@ static struct ureg get_transformed_normal( struct tnl_program *p )
 }
 
 
-
 static void build_hpos( struct tnl_program *p )
 {
    struct ureg pos = register_input( p, VERT_ATTRIB_POS ); 
@@ -891,7 +903,9 @@ static GLuint material_attrib( GLuint side, GLuint property )
 	   side);
 }
 
-/* Get a bitmask of which material values vary on a per-vertex basis.
+
+/**
+ * Get a bitmask of which material values vary on a per-vertex basis.
  */
 static void set_material_flags( struct tnl_program *p )
 {
@@ -927,7 +941,9 @@ static struct ureg get_material( struct tnl_program *p, GLuint side,
 				   MAT_BIT_FRONT_AMBIENT | \
 				   MAT_BIT_FRONT_DIFFUSE) << (side))
 
-/* Either return a precalculated constant value or emit code to
+
+/**
+ * Either return a precalculated constant value or emit code to
  * calculate these values dynamically in the case where material calls
  * are present between begin/end pairs.
  *
@@ -970,6 +986,7 @@ static struct ureg get_lightprod( struct tnl_program *p, GLuint light,
       return register_param4(p, STATE_LIGHTPROD, light, side, property);
 }
 
+
 static struct ureg calculate_light_attenuation( struct tnl_program *p,
 						GLuint i, 
 						struct ureg VPpli,
@@ -1226,7 +1243,6 @@ static void build_lighting( struct tnl_program *p )
 	    struct ureg res0, res1;
 	    GLuint mask0, mask1;
 
-	    
 	    if (count == nr_lights) {
 	       if (separate) {
 		  mask0 = WRITEMASK_XYZ;
@@ -1247,7 +1263,6 @@ static void build_lighting( struct tnl_program *p )
 	       res1 = _col1;
 	    }
 
-
 	    if (!is_undef(att)) {
                /* light is attenuated by distance */
                emit_op1(p, OPCODE_LIT, lit, 0, dots);
@@ -1320,7 +1335,6 @@ static void build_lighting( struct tnl_program *p )
 
 	    emit_op3(p, OPCODE_MAD, res0, mask0, swizzle1(lit,Y), diffuse, _bfc0);
 	    emit_op3(p, OPCODE_MAD, res1, mask1, swizzle1(lit,Z), specular, _bfc1);
-
             /* restore negate flag for next lighting */
             dots = negate(dots);
 
@@ -1395,6 +1409,7 @@ static void build_fog( struct tnl_program *p )
       emit_op1(p, useabs ? OPCODE_ABS : OPCODE_MOV, fog, WRITEMASK_X, input);
    }
 }
+
  
 static void build_reflect_texgen( struct tnl_program *p,
 				  struct ureg dest,
@@ -1414,6 +1429,7 @@ static void build_reflect_texgen( struct tnl_program *p,
    release_temp(p, tmp);
 }
 
+
 static void build_sphere_texgen( struct tnl_program *p,
 				 struct ureg dest,
 				 GLuint writemask )
@@ -1461,7 +1477,7 @@ static void build_texture_transform( struct tnl_program *p )
 {
    GLuint i, j;
 
-   for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
+   for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {
 
       if (!(p->state->fragprog_inputs_read & FRAG_BIT_TEX(i)))
 	 continue;
@@ -1524,10 +1540,8 @@ static void build_texture_transform( struct tnl_program *p )
 	       case TXG_NONE:
 		  copy_mask |= WRITEMASK_X << j;
 	       }
-
 	    }
 
-	 
 	    if (sphere_mask) {
 	       build_sphere_texgen(p, out_texgen, sphere_mask);
 	    }
@@ -1610,6 +1624,7 @@ static void build_atten_pointsize( struct tnl_program *p )
    release_temp(p, ut);
 }
 
+
 /**
  * Emit constant point size.
  */
@@ -1620,6 +1635,7 @@ static void build_constant_pointsize( struct tnl_program *p )
    emit_op1(p, OPCODE_MOV, out, WRITEMASK_X, state_size);
 }
 
+
 /**
  * Pass-though per-vertex point size, from user's point size array.
  */
diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index f72aa6a288..8ce9b0ae69 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -289,7 +289,7 @@ _mesa_GetBooleanv( GLenum pname, GLboolean *params )
          params[0] = INT_TO_BOOLEAN(ctx->DrawBuffer->Visual.depthBits);
          break;
       case GL_DEPTH_CLEAR_VALUE:
-         params[0] = FLOAT_TO_BOOLEAN(ctx->Depth.Clear);
+         params[0] = FLOAT_TO_BOOLEAN(((GLfloat) ctx->Depth.Clear));
          break;
       case GL_DEPTH_FUNC:
          params[0] = ENUM_TO_BOOLEAN(ctx->Depth.Func);
@@ -2137,7 +2137,7 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params )
          params[0] = (GLfloat)(ctx->DrawBuffer->Visual.depthBits);
          break;
       case GL_DEPTH_CLEAR_VALUE:
-         params[0] = ctx->Depth.Clear;
+         params[0] = ((GLfloat) ctx->Depth.Clear);
          break;
       case GL_DEPTH_FUNC:
          params[0] = ENUM_TO_FLOAT(ctx->Depth.Func);
@@ -3985,7 +3985,7 @@ _mesa_GetIntegerv( GLenum pname, GLint *params )
          params[0] = ctx->DrawBuffer->Visual.depthBits;
          break;
       case GL_DEPTH_CLEAR_VALUE:
-         params[0] = FLOAT_TO_INT(ctx->Depth.Clear);
+         params[0] = FLOAT_TO_INT(((GLfloat) ctx->Depth.Clear));
          break;
       case GL_DEPTH_FUNC:
          params[0] = ENUM_TO_INT(ctx->Depth.Func);
diff --git a/src/mesa/main/get_gen.py b/src/mesa/main/get_gen.py
index 152e378b4f..a191b045d3 100644
--- a/src/mesa/main/get_gen.py
+++ b/src/mesa/main/get_gen.py
@@ -180,7 +180,7 @@ StateVars = [
 	( "GL_DEPTH_BIAS", GLfloat, ["ctx->Pixel.DepthBias"], "", None ),
 	( "GL_DEPTH_BITS", GLint, ["ctx->DrawBuffer->Visual.depthBits"],
 	  "", None ),
-	( "GL_DEPTH_CLEAR_VALUE", GLfloatN, ["ctx->Depth.Clear"], "", None ),
+	( "GL_DEPTH_CLEAR_VALUE", GLfloatN, ["((GLfloat) ctx->Depth.Clear)"], "", None ),
 	( "GL_DEPTH_FUNC", GLenum, ["ctx->Depth.Func"], "", None ),
 	( "GL_DEPTH_RANGE", GLfloatN,
 	  [ "ctx->Viewport.Near", "ctx->Viewport.Far" ], "", None ),
diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c
index c205b4b766..4d86c54777 100644
--- a/src/mesa/main/image.c
+++ b/src/mesa/main/image.c
@@ -61,7 +61,7 @@
 /**
  * \return GL_TRUE if type is packed pixel type, GL_FALSE otherwise.
  */
-static GLboolean
+GLboolean
 _mesa_type_is_packed(GLenum type)
 {
    switch (type) {
diff --git a/src/mesa/main/image.h b/src/mesa/main/image.h
index 38e1374c20..0e0bbd96d8 100644
--- a/src/mesa/main/image.h
+++ b/src/mesa/main/image.h
@@ -36,6 +36,9 @@ _mesa_swap2( GLushort *p, GLuint n );
 extern void
 _mesa_swap4( GLuint *p, GLuint n );
 
+extern GLboolean
+_mesa_type_is_packed(GLenum type);
+
 extern GLint
 _mesa_sizeof_type( GLenum type );
 
diff --git a/src/mesa/main/imports.c b/src/mesa/main/imports.c
index 6cfd7ccc72..69d55923c3 100644
--- a/src/mesa/main/imports.c
+++ b/src/mesa/main/imports.c
@@ -930,6 +930,18 @@ _mesa_sprintf( char *str, const char *fmt, ... )
    return r;
 }
 
+/** Wrapper around vsnprintf() */
+int
+_mesa_snprintf( char *str, size_t size, const char *fmt, ... )
+{
+   int r;
+   va_list args;
+   va_start( args, fmt );  
+   r = vsnprintf( str, size, fmt, args );
+   va_end( args );
+   return r;
+}
+
 /** Wrapper around printf(), using vsprintf() for the formatting. */
 void
 _mesa_printf( const char *fmtString, ... )
diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index bab0042071..92d5d0bb4a 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -763,6 +763,9 @@ _mesa_strtod( const char *s, char **end );
 extern int
 _mesa_sprintf( char *str, const char *fmt, ... );
 
+extern int
+_mesa_snprintf( char *str, size_t size, const char *fmt, ... );
+
 extern void
 _mesa_printf( const char *fmtString, ... );
 
diff --git a/src/mesa/main/mipmap.c b/src/mesa/main/mipmap.c
index 9e051ace25..3dd4b3391b 100644
--- a/src/mesa/main/mipmap.c
+++ b/src/mesa/main/mipmap.c
@@ -41,7 +41,11 @@ bytes_per_pixel(GLenum datatype, GLuint comps)
 {
    GLint b = _mesa_sizeof_packed_type(datatype);
    assert(b >= 0);
-   return b * comps;
+
+   if (_mesa_type_is_packed(datatype))
+       return b;
+   else
+       return b * comps;
 }
 
 
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 2a48b7c517..a17bf9c7b0 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1,15 +1,9 @@
-/**
- * \file mtypes.h
- * Main Mesa data structures.
- *
- * Please try to mark derived values with a leading underscore ('_').
- */
-
 /*
  * Mesa 3-D graphics library
  * Version:  7.3
  *
  * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2008  VMware, Inc.  All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -29,7 +23,12 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-
+/**
+ * \file mtypes.h
+ * Main Mesa data structures.
+ *
+ * Please try to mark derived values with a leading underscore ('_').
+ */
 
 #ifndef TYPES_H
 #define TYPES_H
@@ -641,7 +640,7 @@ struct gl_current_attrib
    GLfloat RasterColor[4];
    GLfloat RasterSecondaryColor[4];
    GLfloat RasterIndex;
-   GLfloat RasterTexCoords[MAX_TEXTURE_COORD_UNITS][4];
+   GLfloat RasterTexCoords[MAX_TEXTURE_UNITS][4];
    GLboolean RasterPosValid;
    /*@}*/
 };
@@ -725,10 +724,10 @@ struct gl_enable_attrib
    GLboolean SampleCoverage;          /* GL_ARB_multisample */
    GLboolean SampleCoverageInvert;    /* GL_ARB_multisample */
    GLboolean RasterPositionUnclipped; /* GL_IBM_rasterpos_clip */
-   GLuint Texture[MAX_TEXTURE_IMAGE_UNITS];
-   GLuint TexGen[MAX_TEXTURE_COORD_UNITS];
+   GLuint Texture[MAX_TEXTURE_UNITS];
+   GLuint TexGen[MAX_TEXTURE_UNITS];
    /* SGI_texture_color_table */
-   GLboolean TextureColorTable[MAX_TEXTURE_IMAGE_UNITS];
+   GLboolean TextureColorTable[MAX_TEXTURE_UNITS];
    /* GL_ARB_vertex_program / GL_NV_vertex_program */
    GLboolean VertexProgram;
    GLboolean VertexProgramPointSize;
@@ -1071,7 +1070,7 @@ struct gl_point_attrib
    GLfloat Threshold;		/**< GL_EXT_point_parameters */
    GLboolean _Attenuated;	/**< True if Params != [1, 0, 0] */
    GLboolean PointSprite;	/**< GL_NV/ARB_point_sprite */
-   GLboolean CoordReplace[MAX_TEXTURE_COORD_UNITS]; /**< GL_ARB_point_sprite */
+   GLboolean CoordReplace[MAX_TEXTURE_UNITS]; /**< GL_ARB_point_sprite */
    GLenum SpriteRMode;		/**< GL_NV_point_sprite (only!) */
    GLenum SpriteOrigin;		/**< GL_ARB_point_sprite */
 };
@@ -1559,7 +1558,7 @@ struct gl_texture_attrib
     * name multitexture 
     */
    /**@{*/
-   GLuint CurrentUnit;	       /**< Active texture unit */
+   GLuint CurrentUnit;   /**< Active texture unit [0, MaxTextureImageUnits-1] */
    GLbitfield _EnabledUnits;  /**< one bit set for each really-enabled unit */
    GLbitfield _EnabledCoordUnits;   /**< one bit per enabled coordinate unit */
    GLbitfield _GenFlags;            /**< for texgen */
@@ -1876,7 +1875,7 @@ struct gl_program
    GLbitfield OutputsWritten; /**< Bitmask of which output regs are written to */
    GLbitfield InputFlags[MAX_PROGRAM_INPUTS];   /**< PROG_PARAM_BIT_x flags */
    GLbitfield OutputFlags[MAX_PROGRAM_OUTPUTS]; /**< PROG_PARAM_BIT_x flags */
-   GLbitfield TexturesUsed[MAX_TEXTURE_IMAGE_UNITS];  /**< TEXTURE_x_BIT bitmask */
+   GLbitfield TexturesUsed[MAX_TEXTURE_UNITS];  /**< TEXTURE_x_BIT bitmask */
    GLbitfield SamplersUsed;   /**< Bitfield of which samplers are used */
    GLbitfield ShadowSamplers; /**< Texture units used for shadow sampling. */
 
@@ -2473,9 +2472,9 @@ struct gl_constants
    GLint MaxTextureRectSize;            /* GL_NV_texture_rectangle */
    GLuint MaxTextureCoordUnits;
    GLuint MaxTextureImageUnits;
-   GLuint MaxTextureUnits;              /* = MIN(CoordUnits, ImageUnits) */
-   GLfloat MaxTextureMaxAnisotropy;	/* GL_EXT_texture_filter_anisotropic */
-   GLfloat MaxTextureLodBias;           /* GL_EXT_texture_lod_bias */
+   GLuint MaxTextureUnits;              /**< = MIN(CoordUnits, ImageUnits) */
+   GLfloat MaxTextureMaxAnisotropy;     /**< GL_EXT_texture_filter_anisotropic */
+   GLfloat MaxTextureLodBias;           /**< GL_EXT_texture_lod_bias */
    GLuint MaxArrayLockSize;
    GLint SubPixelBits;
    GLfloat MinPointSize, MaxPointSize;		/* aliased */
@@ -2951,7 +2950,7 @@ struct __GLcontextRec
    struct gl_matrix_stack ModelviewMatrixStack;
    struct gl_matrix_stack ProjectionMatrixStack;
    struct gl_matrix_stack ColorMatrixStack;
-   struct gl_matrix_stack TextureMatrixStack[MAX_TEXTURE_COORD_UNITS];
+   struct gl_matrix_stack TextureMatrixStack[MAX_TEXTURE_UNITS];
    struct gl_matrix_stack ProgramMatrixStack[MAX_PROGRAM_MATRICES];
    struct gl_matrix_stack *CurrentStack; /**< Points to one of the above stacks */
    /*@}*/
diff --git a/src/mesa/main/points.c b/src/mesa/main/points.c
index 1fe697033f..4c8fc1f72e 100644
--- a/src/mesa/main/points.c
+++ b/src/mesa/main/points.c
@@ -257,7 +257,7 @@ _mesa_init_point(GLcontext *ctx)
    ctx->Point.PointSprite = GL_FALSE; /* GL_ARB/NV_point_sprite */
    ctx->Point.SpriteRMode = GL_ZERO; /* GL_NV_point_sprite (only!) */
    ctx->Point.SpriteOrigin = GL_UPPER_LEFT; /* GL_ARB_point_sprite */
-   for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
+   for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {
       ctx->Point.CoordReplace[i] = GL_FALSE; /* GL_ARB/NV_point_sprite */
    }
 }
diff --git a/src/mesa/main/rastpos.c b/src/mesa/main/rastpos.c
index 9842172f46..9f309d6ab8 100644
--- a/src/mesa/main/rastpos.c
+++ b/src/mesa/main/rastpos.c
@@ -500,7 +500,7 @@ void _mesa_init_rastpos( GLcontext * ctx )
    ASSIGN_4V( ctx->Current.RasterColor, 1.0, 1.0, 1.0, 1.0 );
    ASSIGN_4V( ctx->Current.RasterSecondaryColor, 0.0, 0.0, 0.0, 1.0 );
    ctx->Current.RasterIndex = 1.0;
-   for (i=0; i<MAX_TEXTURE_UNITS; i++)
+   for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++)
       ASSIGN_4V( ctx->Current.RasterTexCoords[i], 0.0, 0.0, 0.0, 1.0 );
    ctx->Current.RasterPosValid = GL_TRUE;
 }
diff --git a/src/mesa/main/texenvprogram.c b/src/mesa/main/texenvprogram.c
index 2f90a34220..48abf51d89 100644
--- a/src/mesa/main/texenvprogram.c
+++ b/src/mesa/main/texenvprogram.c
@@ -38,6 +38,21 @@
 #include "texenvprogram.h"
 
 
+/*
+ * Note on texture units:
+ *
+ * The number of texture units supported by fixed-function fragment
+ * processing is MAX_TEXTURE_COORD_UNITS, not MAX_TEXTURE_IMAGE_UNITS.
+ * That's because there's a one-to-one correspondence between texture
+ * coordinates and samplers in fixed-function processing.
+ *
+ * Since fixed-function vertex processing is limited to MAX_TEXTURE_COORD_UNITS
+ * sets of texcoords, so is fixed-function fragment processing.
+ *
+ * We can safely use ctx->Const.MaxTextureUnits for loop bounds.
+ */
+
+
 struct texenvprog_cache_item
 {
    GLuint hash;
@@ -50,13 +65,13 @@ struct texenvprog_cache_item
 /**
  * Up to nine instructions per tex unit, plus fog, specular color.
  */
-#define MAX_INSTRUCTIONS ((MAX_TEXTURE_UNITS * 9) + 12)
+#define MAX_INSTRUCTIONS ((MAX_TEXTURE_COORD_UNITS * 9) + 12)
 
 #define DISASSEM (MESA_VERBOSE & VERBOSE_DISASSEM)
 
 struct mode_opt {
-   GLubyte Source:4;
-   GLubyte Operand:3;
+   GLuint Source:4;
+   GLuint Operand:3;
 };
 
 struct state_key {
@@ -313,7 +328,7 @@ static void make_state_key( GLcontext *ctx,  struct state_key *key )
 
    memset(key, 0, sizeof(*key));
 
-   for (i=0;i<MAX_TEXTURE_UNITS;i++) {
+   for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
       const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i];
       GLenum format;
 
@@ -416,7 +431,7 @@ struct texenv_fragment_program {
    GLbitfield temp_in_use;	/**< Tracks temporary regs which are in use. */
    GLboolean error;
 
-   struct ureg src_texture[MAX_TEXTURE_UNITS];   
+   struct ureg src_texture[MAX_TEXTURE_COORD_UNITS];   
    /* Reg containing each texture unit's sampled texture color,
     * else undef.
     */
@@ -1201,7 +1216,7 @@ create_new_program(GLcontext *ctx, struct state_key *key,
    p.program->Base.InputsRead = 0;
    p.program->Base.OutputsWritten = 1 << FRAG_RESULT_COLR;
 
-   for (unit = 0; unit < MAX_TEXTURE_UNITS; unit++)
+   for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++)
       p.src_texture[unit] = undef;
 
    p.src_previous = undef;
diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c
index db3525666a..50e8d7a3b8 100644
--- a/src/mesa/main/texformat.c
+++ b/src/mesa/main/texformat.c
@@ -1685,7 +1685,7 @@ _mesa_format_to_type_and_comps(const struct gl_texture_format *format,
    case MESA_FORMAT_ARGB1555:
    case MESA_FORMAT_ARGB1555_REV:
       *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV;
-      *comps = 3;
+      *comps = 4;
       return;
 
    case MESA_FORMAT_AL88:
diff --git a/src/mesa/main/texrender.c b/src/mesa/main/texrender.c
index 163bda4501..4ae13a7b9b 100644
--- a/src/mesa/main/texrender.c
+++ b/src/mesa/main/texrender.c
@@ -49,6 +49,14 @@ texture_get_row(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
          trb->TexImage->FetchTexelc(trb->TexImage, x + i, y, z, rgbaOut + 4 * i);
       }
    }
+   else if (rb->DataType == GL_UNSIGNED_SHORT) {
+      GLushort *zValues = (GLushort *) values;
+      for (i = 0; i < count; i++) {
+         GLfloat flt;
+         trb->TexImage->FetchTexelf(trb->TexImage, x + i, y, z, &flt);
+         zValues[i] = (GLushort) (flt * 0xffff);
+      }
+   }
    else if (rb->DataType == GL_UNSIGNED_INT) {
       GLuint *zValues = (GLuint *) values;
       /*
@@ -96,6 +104,15 @@ texture_get_values(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
 				    z, rgbaOut + 4 * i);
       }
    }
+   else if (rb->DataType == GL_UNSIGNED_SHORT) {
+      GLushort *zValues = (GLushort *) values;
+      for (i = 0; i < count; i++) {
+         GLfloat flt;
+         trb->TexImage->FetchTexelf(trb->TexImage, x[i], y[i] + trb->Yoffset,
+				    z, &flt);
+         zValues[i] = (GLushort) (flt * 0xffff);
+      }
+   }
    else if (rb->DataType == GL_UNSIGNED_INT) {
       GLuint *zValues = (GLuint *) values;
       for (i = 0; i < count; i++) {
@@ -147,6 +164,14 @@ texture_put_row(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
          rgba += 4;
       }
    }
+   else if (rb->DataType == GL_UNSIGNED_SHORT) {
+      const GLushort *zValues = (const GLushort *) values;
+      for (i = 0; i < count; i++) {
+         if (!mask || mask[i]) {
+            trb->Store(trb->TexImage, x + i, y, z, zValues + i);
+         }
+      }
+   }
    else if (rb->DataType == GL_UNSIGNED_INT) {
       const GLuint *zValues = (const GLuint *) values;
       for (i = 0; i < count; i++) {
@@ -189,6 +214,14 @@ texture_put_mono_row(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
          }
       }
    }
+   else if (rb->DataType == GL_UNSIGNED_SHORT) {
+      const GLushort zValue = *((const GLushort *) value);
+      for (i = 0; i < count; i++) {
+         if (!mask || mask[i]) {
+            trb->Store(trb->TexImage, x + i, y, z, &zValue);
+         }
+      }
+   }
    else if (rb->DataType == GL_UNSIGNED_INT) {
       const GLuint zValue = *((const GLuint *) value);
       for (i = 0; i < count; i++) {
@@ -231,12 +264,19 @@ texture_put_values(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
          rgba += 4;
       }
    }
+   else if (rb->DataType == GL_UNSIGNED_SHORT) {
+      const GLushort *zValues = (const GLushort *) values;
+      for (i = 0; i < count; i++) {
+         if (!mask || mask[i]) {
+            trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, zValues + i);
+         }
+      }
+   }
    else if (rb->DataType == GL_UNSIGNED_INT) {
       const GLuint *zValues = (const GLuint *) values;
       for (i = 0; i < count; i++) {
          if (!mask || mask[i]) {
-            trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z,
-		       zValues + i);
+            trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, zValues + i);
          }
       }
    }
@@ -281,6 +321,14 @@ texture_put_mono_values(GLcontext *ctx, struct gl_renderbuffer *rb,
          }
       }
    }
+   else if (rb->DataType == GL_UNSIGNED_SHORT) {
+      const GLushort zValue = *((const GLushort *) value);
+      for (i = 0; i < count; i++) {
+         if (!mask || mask[i]) {
+            trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, &zValue);
+         }
+      }
+   }
    else if (rb->DataType == GL_UNSIGNED_INT_24_8_EXT) {
       const GLuint zValue = *((const GLuint *) value);
       const GLfloat flt = (GLfloat) ((zValue >> 8) * (1.0 / 0xffffff));
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c
index f019377041..29955d76cb 100644
--- a/src/mesa/main/texstate.c
+++ b/src/mesa/main/texstate.c
@@ -81,7 +81,7 @@ _mesa_copy_texture_state( const GLcontext *src, GLcontext *dst )
    dst->Texture.SharedPalette = src->Texture.SharedPalette;
 
    /* per-unit state */
-   for (i = 0; i < src->Const.MaxTextureUnits; i++) {
+   for (i = 0; i < src->Const.MaxTextureImageUnits; i++) {
       dst->Texture.Unit[i].Enabled = src->Texture.Unit[i].Enabled;
       dst->Texture.Unit[i].EnvMode = src->Texture.Unit[i].EnvMode;
       COPY_4V(dst->Texture.Unit[i].EnvColor, src->Texture.Unit[i].EnvColor);
@@ -307,8 +307,7 @@ _mesa_ActiveTextureARB(GLenum texture)
       _mesa_debug(ctx, "glActiveTexture %s\n",
                   _mesa_lookup_enum_by_nr(texture));
 
-   /* XXX error-check against max(coordunits, imageunits) */
-   if (texUnit >= ctx->Const.MaxTextureUnits) {
+   if (texUnit >= ctx->Const.MaxTextureImageUnits) {
       _mesa_error(ctx, GL_INVALID_ENUM, "glActiveTexture(texture)");
       return;
    }
@@ -369,7 +368,7 @@ update_texture_matrices( GLcontext *ctx )
 
    ctx->Texture._TexMatEnabled = 0;
 
-   for (i=0; i < ctx->Const.MaxTextureUnits; i++) {
+   for (i=0; i < ctx->Const.MaxTextureCoordUnits; i++) {
       if (_math_matrix_is_dirty(ctx->TextureMatrixStack[i].Top)) {
 	 _math_matrix_analyse( ctx->TextureMatrixStack[i].Top );
 
@@ -491,7 +490,7 @@ update_texture_state( GLcontext *ctx )
    /*
     * Update texture unit state.
     */
-   for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
+   for (unit = 0; unit < ctx->Const.MaxTextureImageUnits; unit++) {
       struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
       GLbitfield enableBits;
 
@@ -621,7 +620,7 @@ update_texture_state( GLcontext *ctx )
    }
 
    /* Setup texgen for those texture coordinate sets that are in use */
-   for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
+   for (unit = 0; unit < ctx->Const.MaxTextureCoordUnits; unit++) {
       struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
 
       if (!(ctx->Texture._EnabledCoordUnits & (1 << unit)))