mesa/sso: rename Shader to the pointer _Shader

Basically a sed but shaderapi.c and get.c.
get.c => GL_CURRENT_PROGAM always refer to the "old" UseProgram behavior
shaderapi.c => the old api stil update the Shader object directly

V2: formatting improvement

V3 (idr):
* Rebase fixes after a block of code was moved from ir_to_mesa.cpp to
  shaderapi.c.
* Trivial reformatting.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

32 files changed, 124 insertions, 110 deletions

diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index 76cbb41a9d..0abdfb2cad 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -537,10 +537,10 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
 
       for (i = 0; i < MESA_SHADER_STAGES; i++) {
          _mesa_reference_shader_program(ctx, &save->Shader[i],
-                                     ctx->Shader.CurrentProgram[i]);
+                                     ctx->_Shader->CurrentProgram[i]);
       }
       _mesa_reference_shader_program(ctx, &save->ActiveShader,
-                                     ctx->Shader.ActiveProgram);
+                                     ctx->_Shader->ActiveProgram);
 
       _mesa_UseProgram(0);
    }
@@ -893,7 +893,7 @@ _mesa_meta_end(struct gl_context *ctx)
 	 _mesa_use_shader_program(ctx, GL_FRAGMENT_SHADER,
 				  save->Shader[MESA_SHADER_FRAGMENT]);
 
-      _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram,
+      _mesa_reference_shader_program(ctx, &ctx->_Shader->ActiveProgram,
 				     save->ActiveShader);
 
       for (i = 0; i < MESA_SHADER_STAGES; i++)
diff --git a/src/mesa/drivers/dri/i965/brw_gs.c b/src/mesa/drivers/dri/i965/brw_gs.c
index bd5bf14cde..ddfb296f2c 100644
--- a/src/mesa/drivers/dri/i965/brw_gs.c
+++ b/src/mesa/drivers/dri/i965/brw_gs.c
@@ -187,7 +187,7 @@ static void populate_key(struct brw_context *brw,
       /* BRW_NEW_TRANSFORM_FEEDBACK */
       if (_mesa_is_xfb_active_and_unpaused(ctx)) {
          const struct gl_shader_program *shaderprog =
-            ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX];
+            ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
          const struct gl_transform_feedback_info *linked_xfb_info =
             &shaderprog->LinkedTransformFeedback;
          int i;
diff --git a/src/mesa/drivers/dri/i965/brw_gs_surface_state.c b/src/mesa/drivers/dri/i965/brw_gs_surface_state.c
index 0795e56580..26a3fa89e3 100644
--- a/src/mesa/drivers/dri/i965/brw_gs_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_gs_surface_state.c
@@ -70,7 +70,7 @@ brw_upload_gs_ubo_surfaces(struct brw_context *brw)
 
    /* _NEW_PROGRAM */
    struct gl_shader_program *prog =
-      ctx->Shader.CurrentProgram[MESA_SHADER_GEOMETRY];
+      ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY];
 
    if (!prog)
       return;
@@ -95,7 +95,7 @@ brw_upload_gs_abo_surfaces(struct brw_context *brw)
    struct gl_context *ctx = &brw->ctx;
    /* _NEW_PROGRAM */
    struct gl_shader_program *prog =
-      ctx->Shader.CurrentProgram[MESA_SHADER_GEOMETRY];
+      ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY];
 
    if (prog) {
       /* CACHE_NEW_GS_PROG */
diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp
index 407319b4d8..bbc5f3def3 100644
--- a/src/mesa/drivers/dri/i965/brw_shader.cpp
+++ b/src/mesa/drivers/dri/i965/brw_shader.cpp
@@ -248,7 +248,7 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *shProg)
 
       _mesa_reference_program(ctx, &prog, NULL);
 
-      if (ctx->Shader.Flags & GLSL_DUMP) {
+      if (ctx->_Shader->Flags & GLSL_DUMP) {
          fprintf(stderr, "\n");
          fprintf(stderr, "GLSL IR for linked %s program %d:\n",
                  _mesa_shader_stage_to_string(shader->base.Stage),
@@ -258,7 +258,7 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *shProg)
       }
    }
 
-   if ((ctx->Shader.Flags & GLSL_DUMP) && shProg->Name != 0) {
+   if ((ctx->_Shader->Flags & GLSL_DUMP) && shProg->Name != 0) {
       for (unsigned i = 0; i < shProg->NumShaders; i++) {
          const struct gl_shader *sh = shProg->Shaders[i];
          if (!sh)
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_gs.c b/src/mesa/drivers/dri/i965/brw_vec4_gs.c
index 8a9625b52a..b48c420a9f 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_gs.c
+++ b/src/mesa/drivers/dri/i965/brw_vec4_gs.c
@@ -306,7 +306,7 @@ brw_upload_gs_prog(struct brw_context *brw)
                          &key, sizeof(key),
                          &stage_state->prog_offset, &brw->gs.prog_data)) {
       bool success =
-         do_gs_prog(brw, ctx->Shader.CurrentProgram[MESA_SHADER_GEOMETRY], gp,
+         do_gs_prog(brw, ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY], gp,
                     &key);
       assert(success);
    }
diff --git a/src/mesa/drivers/dri/i965/brw_vs.c b/src/mesa/drivers/dri/i965/brw_vs.c
index d98f195072..e0f32b3333 100644
--- a/src/mesa/drivers/dri/i965/brw_vs.c
+++ b/src/mesa/drivers/dri/i965/brw_vs.c
@@ -147,7 +147,7 @@ brw_compute_vue_map(struct brw_context *brw, struct brw_vue_map *vue_map,
  */
 gl_clip_plane *brw_select_clip_planes(struct gl_context *ctx)
 {
-   if (ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX]) {
+   if (ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]) {
       /* There is currently a GLSL vertex shader, so clip according to GLSL
        * rules, which means compare gl_ClipVertex (or gl_Position, if
        * gl_ClipVertex wasn't assigned) against the eye-coordinate clip planes
@@ -484,7 +484,7 @@ static void brw_upload_vs_prog(struct brw_context *brw)
 			 &key, sizeof(key),
 			 &brw->vs.base.prog_offset, &brw->vs.prog_data)) {
       bool success =
-         do_vs_prog(brw, ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX], vp,
+         do_vs_prog(brw, ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX], vp,
                     &key);
       (void) success;
       assert(success);
diff --git a/src/mesa/drivers/dri/i965/brw_vs_surface_state.c b/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
index 8f611242fc..bd97a22f63 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
@@ -131,7 +131,7 @@ brw_upload_vs_ubo_surfaces(struct brw_context *brw)
    struct gl_context *ctx = &brw->ctx;
    /* _NEW_PROGRAM */
    struct gl_shader_program *prog =
-      ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX];
+      ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
 
    if (!prog)
       return;
@@ -156,7 +156,7 @@ brw_upload_vs_abo_surfaces(struct brw_context *brw)
    struct gl_context *ctx = &brw->ctx;
    /* _NEW_PROGRAM */
    struct gl_shader_program *prog =
-      ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX];
+      ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
 
    if (prog) {
       /* CACHE_NEW_VS_PROG */
diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c
index 0d0d6ec82f..b97501c5d1 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.c
+++ b/src/mesa/drivers/dri/i965/brw_wm.c
@@ -579,7 +579,7 @@ brw_upload_wm_prog(struct brw_context *brw)
    if (!brw_search_cache(&brw->cache, BRW_WM_PROG,
 			 &key, sizeof(key),
 			 &brw->wm.base.prog_offset, &brw->wm.prog_data)) {
-      bool success = do_wm_prog(brw, ctx->Shader._CurrentFragmentProgram, fp,
+      bool success = do_wm_prog(brw, ctx->_Shader->_CurrentFragmentProgram, fp,
 				&key);
       (void) success;
       assert(success);
diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index a0bb4bafaa..61f7ba5daf 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -881,7 +881,7 @@ brw_upload_wm_ubo_surfaces(struct brw_context *brw)
 {
    struct gl_context *ctx = &brw->ctx;
    /* _NEW_PROGRAM */
-   struct gl_shader_program *prog = ctx->Shader._CurrentFragmentProgram;
+   struct gl_shader_program *prog = ctx->_Shader->_CurrentFragmentProgram;
 
    if (!prog)
       return;
diff --git a/src/mesa/drivers/dri/i965/gen6_sol.c b/src/mesa/drivers/dri/i965/gen6_sol.c
index 0047c8aa76..e1c1b3cb06 100644
--- a/src/mesa/drivers/dri/i965/gen6_sol.c
+++ b/src/mesa/drivers/dri/i965/gen6_sol.c
@@ -43,7 +43,7 @@ gen6_update_sol_surfaces(struct brw_context *brw)
       ctx->TransformFeedback.CurrentObject;
    /* BRW_NEW_VERTEX_PROGRAM */
    const struct gl_shader_program *shaderprog =
-      ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX];
+      ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
    const struct gl_transform_feedback_info *linked_xfb_info =
       &shaderprog->LinkedTransformFeedback;
    int i;
@@ -89,7 +89,7 @@ brw_gs_upload_binding_table(struct brw_context *brw)
    struct gl_context *ctx = &brw->ctx;
    /* BRW_NEW_VERTEX_PROGRAM */
    const struct gl_shader_program *shaderprog =
-      ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX];
+      ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
    bool has_surfaces = false;
    uint32_t *bind;
 
@@ -175,7 +175,7 @@ brw_begin_transform_feedback(struct gl_context *ctx, GLenum mode,
 {
    struct brw_context *brw = brw_context(ctx);
    const struct gl_shader_program *vs_prog =
-      ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX];
+      ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
    const struct gl_transform_feedback_info *linked_xfb_info =
       &vs_prog->LinkedTransformFeedback;
    struct gl_transform_feedback_object *xfb_obj =
diff --git a/src/mesa/drivers/dri/i965/gen6_vs_state.c b/src/mesa/drivers/dri/i965/gen6_vs_state.c
index 5e9bb660d5..0af87d1f4d 100644
--- a/src/mesa/drivers/dri/i965/gen6_vs_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_vs_state.c
@@ -158,7 +158,7 @@ upload_vs_state(struct brw_context *brw)
    /* Use ALT floating point mode for ARB vertex programs, because they
     * require 0^0 == 1.
     */
-   if (ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX] == NULL)
+   if (ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX] == NULL)
       floating_point_mode = GEN6_VS_FLOATING_POINT_MODE_ALT;
 
    BEGIN_BATCH(6);
diff --git a/src/mesa/drivers/dri/i965/gen6_wm_state.c b/src/mesa/drivers/dri/i965/gen6_wm_state.c
index e7c955589f..22e0925091 100644
--- a/src/mesa/drivers/dri/i965/gen6_wm_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_wm_state.c
@@ -140,7 +140,7 @@ upload_wm_state(struct brw_context *brw)
     * rendering, CurrentProgram[MESA_SHADER_FRAGMENT] is used for this check
     * to differentiate between the GLSL and non-GLSL cases.
     */
-   if (ctx->Shader.CurrentProgram[MESA_SHADER_FRAGMENT] == NULL)
+   if (ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT] == NULL)
       dw2 |= GEN6_WM_FLOATING_POINT_MODE_ALT;
 
    /* CACHE_NEW_SAMPLER */
diff --git a/src/mesa/drivers/dri/i965/gen7_vs_state.c b/src/mesa/drivers/dri/i965/gen7_vs_state.c
index 0d9859bec5..b5fc871cfe 100644
--- a/src/mesa/drivers/dri/i965/gen7_vs_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_vs_state.c
@@ -87,7 +87,7 @@ upload_vs_state(struct brw_context *brw)
    /* Use ALT floating point mode for ARB vertex programs, because they
     * require 0^0 == 1.
     */
-   if (ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX] == NULL)
+   if (ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX] == NULL)
       floating_point_mode = GEN6_VS_FLOATING_POINT_MODE_ALT;
 
    BEGIN_BATCH(6);
diff --git a/src/mesa/drivers/dri/i965/gen7_wm_state.c b/src/mesa/drivers/dri/i965/gen7_wm_state.c
index ca3e275393..71535a53fa 100644
--- a/src/mesa/drivers/dri/i965/gen7_wm_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_wm_state.c
@@ -168,7 +168,7 @@ upload_ps_state(struct brw_context *brw)
     * to differentiate between the GLSL and non-GLSL cases.
     */
    /* BRW_NEW_FRAGMENT_PROGRAM */
-   if (ctx->Shader.CurrentProgram[MESA_SHADER_FRAGMENT] == NULL)
+   if (ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT] == NULL)
       dw2 |= GEN7_PS_FLOATING_POINT_MODE_ALT;
 
    /* Haswell requires the sample mask to be set in this packet as well as
diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index f3fd1a4756..efc3a2b4be 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -129,7 +129,7 @@ check_valid_to_render(struct gl_context *ctx, const char *function)
    case API_OPENGL_CORE:
       {
          const struct gl_shader_program *vsProg =
-            ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX];
+            ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
          GLboolean haveVertexShader = (vsProg && vsProg->LinkStatus);
          GLboolean haveVertexProgram = ctx->VertexProgram._Enabled;
          if (haveVertexShader || haveVertexProgram) {
@@ -270,9 +270,9 @@ _mesa_valid_prim_mode(struct gl_context *ctx, GLenum mode, const char *name)
     *   TRIANGLES_ADJACENCY_ARB or TRIANGLE_STRIP_ADJACENCY_ARB.
     *
    */
-   if (ctx->Shader.CurrentProgram[MESA_SHADER_GEOMETRY]) {
+   if (ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY]) {
       const GLenum geom_mode =
-         ctx->Shader.CurrentProgram[MESA_SHADER_GEOMETRY]->Geom.InputType;
+         ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY]->Geom.InputType;
       switch (mode) {
       case GL_POINTS:
          valid_enum = (geom_mode == GL_POINTS);
@@ -331,8 +331,8 @@ _mesa_valid_prim_mode(struct gl_context *ctx, GLenum mode, const char *name)
    if (_mesa_is_xfb_active_and_unpaused(ctx)) {
       GLboolean pass = GL_TRUE;
 
-      if(ctx->Shader.CurrentProgram[MESA_SHADER_GEOMETRY]) {
-         switch (ctx->Shader.CurrentProgram[MESA_SHADER_GEOMETRY]->Geom.OutputType) {
+      if(ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY]) {
+         switch (ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY]->Geom.OutputType) {
          case GL_POINTS:
             pass = ctx->TransformFeedback.Mode == GL_POINTS;
             break;
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index cd009c1159..5d580fab78 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1855,7 +1855,7 @@ _mesa_valid_to_render(struct gl_context *ctx, const char *where)
       _mesa_update_state(ctx);
 
    for (i = 0; i < MESA_SHADER_COMPUTE; i++) {
-      if (!shader_linked_or_absent(ctx, ctx->Shader.CurrentProgram[i],
+      if (!shader_linked_or_absent(ctx, ctx->_Shader->CurrentProgram[i],
                                    &from_glsl_shader[i], where))
          return GL_FALSE;
    }
@@ -1903,8 +1903,8 @@ _mesa_valid_to_render(struct gl_context *ctx, const char *where)
    }
 
 #ifdef DEBUG
-   if (ctx->Shader.Flags & GLSL_LOG) {
-      struct gl_shader_program **shProg = ctx->Shader.CurrentProgram;
+   if (ctx->_Shader->Flags & GLSL_LOG) {
+      struct gl_shader_program **shProg = ctx->_Shader->CurrentProgram;
       gl_shader_stage i;
 
       for (i = 0; i < MESA_SHADER_STAGES; i++) {
diff --git a/src/mesa/main/ff_fragment_shader.cpp b/src/mesa/main/ff_fragment_shader.cpp
index cad67aa851..1d2ad604b5 100644
--- a/src/mesa/main/ff_fragment_shader.cpp
+++ b/src/mesa/main/ff_fragment_shader.cpp
@@ -317,9 +317,9 @@ static GLbitfield get_fp_input_mask( struct gl_context *ctx )
 {
    /* _NEW_PROGRAM */
    const GLboolean vertexShader =
-      (ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX] &&
-       ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX]->LinkStatus &&
-       ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX]->_LinkedShaders[MESA_SHADER_VERTEX]);
+      (ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX] &&
+       ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]->LinkStatus &&
+       ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]->_LinkedShaders[MESA_SHADER_VERTEX]);
    const GLboolean vertexProgram = ctx->VertexProgram._Enabled;
    GLbitfield fp_inputs = 0x0;
 
@@ -383,7 +383,7 @@ static GLbitfield get_fp_input_mask( struct gl_context *ctx )
        * validation (see additional comments in state.c).
        */
       if (vertexShader)
-         vprog = ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX]->_LinkedShaders[MESA_SHADER_VERTEX]->Program;
+         vprog = ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]->_LinkedShaders[MESA_SHADER_VERTEX]->Program;
       else
          vprog = &ctx->VertexProgram.Current->Base;
 
diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index 88cf202dfe..cf133c7c9c 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -873,6 +873,18 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
       v->value_int = ctx->TransformFeedback.CurrentObject->Name;
       break;
    case GL_CURRENT_PROGRAM:
+      /* The Changelog of the ARB_separate_shader_objects spec says:
+       *
+       * 24 25 Jul 2011  pbrown  Remove the language erroneously deleting
+       *                         CURRENT_PROGRAM.  In the EXT extension, this
+       *                         token was aliased to ACTIVE_PROGRAM_EXT, and
+       *                         was used to indicate the last program set by
+       *                         either ActiveProgramEXT or UseProgram.  In
+       *                         the ARB extension, the SSO active programs
+       *                         are now program pipeline object state and
+       *                         CURRENT_PROGRAM should still be used to query
+       *                         the last program set by UseProgram (bug 7822).
+       */
       v->value_int =
 	 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
       break;
diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index f0d345a143..ada2623351 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -468,8 +468,8 @@ static GLuint
 get_handle(struct gl_context *ctx, GLenum pname)
 {
    if (pname == GL_PROGRAM_OBJECT_ARB) {
-      if (ctx->Shader.ActiveProgram)
-         return ctx->Shader.ActiveProgram->Name;
+      if (ctx->_Shader->ActiveProgram)
+         return ctx->_Shader->ActiveProgram->Name;
       else
          return 0;
    }
@@ -840,7 +840,7 @@ compile_shader(struct gl_context *ctx, GLuint shaderObj)
        */
       sh->CompileStatus = GL_FALSE;
    } else {
-      if (ctx->Shader.Flags & GLSL_DUMP) {
+      if (ctx->_Shader->Flags & GLSL_DUMP) {
          fprintf(stderr, "GLSL source for %s shader %d:\n",
                  _mesa_shader_stage_to_string(sh->Stage), sh->Name);
          fprintf(stderr, "%s\n", sh->Source);
@@ -852,11 +852,11 @@ compile_shader(struct gl_context *ctx, GLuint shaderObj)
        */
       _mesa_glsl_compile_shader(ctx, sh, false, false);
 
-      if (ctx->Shader.Flags & GLSL_LOG) {
+      if (ctx->_Shader->Flags & GLSL_LOG) {
          _mesa_write_shader_to_file(sh);
       }
 
-      if (ctx->Shader.Flags & GLSL_DUMP) {
+      if (ctx->_Shader->Flags & GLSL_DUMP) {
          if (sh->CompileStatus) {
             fprintf(stderr, "GLSL IR for shader %d:\n", sh->Name);
             _mesa_print_ir(stderr, sh->ir, NULL);
@@ -874,7 +874,7 @@ compile_shader(struct gl_context *ctx, GLuint shaderObj)
    }
 
    if (!sh->CompileStatus) {
-      if (ctx->Shader.Flags & GLSL_DUMP_ON_ERROR) {
+      if (ctx->_Shader->Flags & GLSL_DUMP_ON_ERROR) {
          fprintf(stderr, "GLSL source for %s shader %d:\n",
                  _mesa_shader_stage_to_string(sh->Stage), sh->Name);
          fprintf(stderr, "%s\n", sh->Source);
@@ -882,7 +882,7 @@ compile_shader(struct gl_context *ctx, GLuint shaderObj)
          fflush(stderr);
       }
 
-      if (ctx->Shader.Flags & GLSL_REPORT_ERRORS) {
+      if (ctx->_Shader->Flags & GLSL_REPORT_ERRORS) {
          _mesa_debug(ctx, "Error compiling shader %u:\n%s\n",
                      sh->Name, sh->InfoLog);
       }
@@ -918,7 +918,7 @@ link_program(struct gl_context *ctx, GLuint program)
    _mesa_glsl_link_shader(ctx, shProg);
 
    if (shProg->LinkStatus == GL_FALSE && 
-       (ctx->Shader.Flags & GLSL_REPORT_ERRORS)) {
+       (ctx->_Shader->Flags & GLSL_REPORT_ERRORS)) {
       _mesa_debug(ctx, "Error linking program %u:\n%s\n",
                   shProg->Name, shProg->InfoLog);
    }
@@ -994,7 +994,7 @@ use_shader_program(struct gl_context *ctx, GLenum type,
    struct gl_shader_program **target;
    gl_shader_stage stage = _mesa_shader_enum_to_shader_stage(type);
 
-   target = &ctx->Shader.CurrentProgram[stage];
+   target = &ctx->_Shader->CurrentProgram[stage];
    if ((shProg == NULL) || (shProg->_LinkedShaders[stage] == NULL))
       shProg = NULL;
 
@@ -1016,9 +1016,9 @@ use_shader_program(struct gl_context *ctx, GLenum type,
          /* Empty for now. */
          break;
       case GL_FRAGMENT_SHADER:
-	 if (*target == ctx->Shader._CurrentFragmentProgram) {
+         if (*target == ctx->_Shader->_CurrentFragmentProgram) {
 	    _mesa_reference_shader_program(ctx,
-					   &ctx->Shader._CurrentFragmentProgram,
+                                           &ctx->_Shader->_CurrentFragmentProgram,
 					   NULL);
 	 }
 	 break;
@@ -1536,7 +1536,7 @@ _mesa_UseProgram(GLhandleARB program)
       }
 
       /* debug code */
-      if (ctx->Shader.Flags & GLSL_USE_PROG) {
+      if (ctx->_Shader->Flags & GLSL_USE_PROG) {
          print_shader_info(shProg);
       }
    }
@@ -1862,9 +1862,9 @@ _mesa_UseShaderProgramEXT(GLenum type, GLuint program)
       _mesa_use_shader_program(ctx, type, shProg);
 
       /* Nothing remains current */
-      if (!ctx->Shader.CurrentVertexProgram &&
-          !ctx->Shader.CurrentGeometryProgram &&
-          !ctx->Shader.CurrentFragmentProgram &&
+      if (!ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX] &&
+          !ctx->Shader.CurrentProgram[MESA_SHADER_GEOMETRY] &&
+          !ctx->Shader.CurrentProgram[MESA_SHADER_FRAGMENT] &&
           !ctx->Shader.ActiveProgram) {
 
          /* Unattach shader_state binding point */
@@ -1910,8 +1910,10 @@ _mesa_ActiveProgramEXT(GLuint program)
       _mesa_active_program(ctx, shProg, "glActiveProgramEXT");
 
       /* Nothing remains current */
-      if (!ctx->Shader.CurrentVertexProgram && !ctx->Shader.CurrentGeometryProgram &&
-          !ctx->Shader.CurrentFragmentProgram && !ctx->Shader.ActiveProgram) {
+      if (!ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX] &&
+          !ctx->Shader.CurrentProgram[MESA_SHADER_GEOMETRY] &&
+          !ctx->Shader.CurrentProgram[MESA_SHADER_FRAGMENT] &&
+          !ctx->Shader.ActiveProgram) {
 
          /* Unattach shader_state binding point */
          _mesa_reference_pipeline_object(ctx, &ctx->_Shader, ctx->Pipeline.Default);
diff --git a/src/mesa/main/state.c b/src/mesa/main/state.c
index 0866a140f4..c122c16aae 100644
--- a/src/mesa/main/state.c
+++ b/src/mesa/main/state.c
@@ -95,11 +95,11 @@ static GLbitfield
 update_program(struct gl_context *ctx)
 {
    const struct gl_shader_program *vsProg =
-      ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX];
+      ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
    const struct gl_shader_program *gsProg =
-      ctx->Shader.CurrentProgram[MESA_SHADER_GEOMETRY];
+      ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY];
    struct gl_shader_program *fsProg =
-      ctx->Shader.CurrentProgram[MESA_SHADER_FRAGMENT];
+      ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT];
    const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current;
    const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current;
    const struct gl_geometry_program *prevGP = ctx->GeometryProgram._Current;
@@ -125,7 +125,7 @@ update_program(struct gl_context *ctx)
        && fsProg->_LinkedShaders[MESA_SHADER_FRAGMENT]) {
       /* Use GLSL fragment shader */
       _mesa_reference_shader_program(ctx,
-				     &ctx->Shader._CurrentFragmentProgram,
+                                     &ctx->_Shader->_CurrentFragmentProgram,
 				     fsProg);
       _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
                                gl_fragment_program(fsProg->_LinkedShaders[MESA_SHADER_FRAGMENT]->Program));
@@ -135,7 +135,7 @@ update_program(struct gl_context *ctx)
    else if (ctx->FragmentProgram._Enabled) {
       /* Use user-defined fragment program */
       _mesa_reference_shader_program(ctx,
-				     &ctx->Shader._CurrentFragmentProgram,
+                                     &ctx->_Shader->_CurrentFragmentProgram,
 				     NULL);
       _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
                                ctx->FragmentProgram.Current);
@@ -147,7 +147,7 @@ update_program(struct gl_context *ctx)
       struct gl_shader_program *f = _mesa_get_fixed_func_fragment_program(ctx);
 
       _mesa_reference_shader_program(ctx,
-				     &ctx->Shader._CurrentFragmentProgram,
+                                     &ctx->_Shader->_CurrentFragmentProgram,
 				     f);
       _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
 			       gl_fragment_program(f->_LinkedShaders[MESA_SHADER_FRAGMENT]->Program));
@@ -310,7 +310,7 @@ update_multisample(struct gl_context *ctx)
 static void
 update_twoside(struct gl_context *ctx)
 {
-   if (ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX] ||
+   if (ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX] ||
        ctx->VertexProgram._Enabled) {
       ctx->VertexProgram._TwoSideEnabled = ctx->VertexProgram.TwoSideEnabled;
    } else {
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c
index 08725f6019..fcae878cf8 100644
--- a/src/mesa/main/texstate.c
+++ b/src/mesa/main/texstate.c
@@ -532,9 +532,9 @@ update_texture_state( struct gl_context *ctx )
    int i;
 
    for (i = 0; i < MESA_SHADER_STAGES; i++) {
-      if (ctx->Shader.CurrentProgram[i] &&
-          ctx->Shader.CurrentProgram[i]->LinkStatus) {
-         prog[i] = ctx->Shader.CurrentProgram[i]->_LinkedShaders[i]->Program;
+      if (ctx->_Shader->CurrentProgram[i] &&
+          ctx->_Shader->CurrentProgram[i]->LinkStatus) {
+         prog[i] = ctx->_Shader->CurrentProgram[i]->_LinkedShaders[i]->Program;
       } else {
          if (i == MESA_SHADER_FRAGMENT && ctx->FragmentProgram._Enabled)
             prog[i] = &ctx->FragmentProgram.Current->Base;
diff --git a/src/mesa/main/transformfeedback.c b/src/mesa/main/transformfeedback.c
index 6b9565ca38..abeb25e873 100644
--- a/src/mesa/main/transformfeedback.c
+++ b/src/mesa/main/transformfeedback.c
@@ -388,8 +388,8 @@ get_xfb_source(struct gl_context *ctx)
 {
    int i;
    for (i = MESA_SHADER_GEOMETRY; i >= MESA_SHADER_VERTEX; i--) {
-      if (ctx->Shader.CurrentProgram[i] != NULL)
-         return ctx->Shader.CurrentProgram[i];
+      if (ctx->_Shader->CurrentProgram[i] != NULL)
+         return ctx->_Shader->CurrentProgram[i];
    }
    return NULL;
 }
diff --git a/src/mesa/main/uniform_query.cpp b/src/mesa/main/uniform_query.cpp
index fa13ef9fe2..1f8d48dd92 100644
--- a/src/mesa/main/uniform_query.cpp
+++ b/src/mesa/main/uniform_query.cpp
@@ -698,7 +698,7 @@ _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg,
       return;
    }
 
-   if (ctx->Shader.Flags & GLSL_UNIFORMS) {
+   if (ctx->_Shader->Flags & GLSL_UNIFORMS) {
       log_uniform(values, basicType, components, 1, count,
 		  false, shProg, location, uni);
    }
@@ -920,7 +920,7 @@ _mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg,
       }
    }
 
-   if (ctx->Shader.Flags & GLSL_UNIFORMS) {
+   if (ctx->_Shader->Flags & GLSL_UNIFORMS) {
       log_uniform(values, GLSL_TYPE_FLOAT, components, vectors, count,
 		  bool(transpose), shProg, location, uni);
    }
diff --git a/src/mesa/main/uniforms.c b/src/mesa/main/uniforms.c
index e9b374b0da..1daade4283 100644
--- a/src/mesa/main/uniforms.c
+++ b/src/mesa/main/uniforms.c
@@ -137,7 +137,7 @@ void GLAPIENTRY
 _mesa_Uniform1f(GLint location, GLfloat v0)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_FLOAT);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, 1, &v0, GL_FLOAT);
 }
 
 void GLAPIENTRY
@@ -147,7 +147,7 @@ _mesa_Uniform2f(GLint location, GLfloat v0, GLfloat v1)
    GLfloat v[2];
    v[0] = v0;
    v[1] = v1;
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC2);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, 1, v, GL_FLOAT_VEC2);
 }
 
 void GLAPIENTRY
@@ -158,7 +158,7 @@ _mesa_Uniform3f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2)
    v[0] = v0;
    v[1] = v1;
    v[2] = v2;
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC3);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, 1, v, GL_FLOAT_VEC3);
 }
 
 void GLAPIENTRY
@@ -171,14 +171,14 @@ _mesa_Uniform4f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2,
    v[1] = v1;
    v[2] = v2;
    v[3] = v3;
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC4);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, 1, v, GL_FLOAT_VEC4);
 }
 
 void GLAPIENTRY
 _mesa_Uniform1i(GLint location, GLint v0)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_INT);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, 1, &v0, GL_INT);
 }
 
 void GLAPIENTRY
@@ -188,7 +188,7 @@ _mesa_Uniform2i(GLint location, GLint v0, GLint v1)
    GLint v[2];
    v[0] = v0;
    v[1] = v1;
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC2);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, 1, v, GL_INT_VEC2);
 }
 
 void GLAPIENTRY
@@ -199,7 +199,7 @@ _mesa_Uniform3i(GLint location, GLint v0, GLint v1, GLint v2)
    v[0] = v0;
    v[1] = v1;
    v[2] = v2;
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC3);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, 1, v, GL_INT_VEC3);
 }
 
 void GLAPIENTRY
@@ -211,63 +211,63 @@ _mesa_Uniform4i(GLint location, GLint v0, GLint v1, GLint v2, GLint v3)
    v[1] = v1;
    v[2] = v2;
    v[3] = v3;
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC4);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, 1, v, GL_INT_VEC4);
 }
 
 void GLAPIENTRY
 _mesa_Uniform1fv(GLint location, GLsizei count, const GLfloat * value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, count, value, GL_FLOAT);
 }
 
 void GLAPIENTRY
 _mesa_Uniform2fv(GLint location, GLsizei count, const GLfloat * value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC2);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, count, value, GL_FLOAT_VEC2);
 }
 
 void GLAPIENTRY
 _mesa_Uniform3fv(GLint location, GLsizei count, const GLfloat * value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC3);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, count, value, GL_FLOAT_VEC3);
 }
 
 void GLAPIENTRY
 _mesa_Uniform4fv(GLint location, GLsizei count, const GLfloat * value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC4);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, count, value, GL_FLOAT_VEC4);
 }
 
 void GLAPIENTRY
 _mesa_Uniform1iv(GLint location, GLsizei count, const GLint * value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, count, value, GL_INT);
 }
 
 void GLAPIENTRY
 _mesa_Uniform2iv(GLint location, GLsizei count, const GLint * value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC2);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, count, value, GL_INT_VEC2);
 }
 
 void GLAPIENTRY
 _mesa_Uniform3iv(GLint location, GLsizei count, const GLint * value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC3);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, count, value, GL_INT_VEC3);
 }
 
 void GLAPIENTRY
 _mesa_Uniform4iv(GLint location, GLsizei count, const GLint * value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC4);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, count, value, GL_INT_VEC4);
 }
 
 /** Same as above with direct state access **/
@@ -467,7 +467,7 @@ void GLAPIENTRY
 _mesa_Uniform1ui(GLint location, GLuint v0)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_UNSIGNED_INT);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, 1, &v0, GL_UNSIGNED_INT);
 }
 
 void GLAPIENTRY
@@ -477,7 +477,7 @@ _mesa_Uniform2ui(GLint location, GLuint v0, GLuint v1)
    GLuint v[2];
    v[0] = v0;
    v[1] = v1;
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC2);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC2);
 }
 
 void GLAPIENTRY
@@ -488,7 +488,7 @@ _mesa_Uniform3ui(GLint location, GLuint v0, GLuint v1, GLuint v2)
    v[0] = v0;
    v[1] = v1;
    v[2] = v2;
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC3);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC3);
 }
 
 void GLAPIENTRY
@@ -500,35 +500,35 @@ _mesa_Uniform4ui(GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3)
    v[1] = v1;
    v[2] = v2;
    v[3] = v3;
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC4);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC4);
 }
 
 void GLAPIENTRY
 _mesa_Uniform1uiv(GLint location, GLsizei count, const GLuint *value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, count, value, GL_UNSIGNED_INT);
 }
 
 void GLAPIENTRY
 _mesa_Uniform2uiv(GLint location, GLsizei count, const GLuint *value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC2);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC2);
 }
 
 void GLAPIENTRY
 _mesa_Uniform3uiv(GLint location, GLsizei count, const GLuint *value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC3);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC3);
 }
 
 void GLAPIENTRY
 _mesa_Uniform4uiv(GLint location, GLsizei count, const GLuint *value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC4);
+   _mesa_uniform(ctx, ctx->_Shader->ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC4);
 }
 
 
@@ -538,7 +538,7 @@ _mesa_UniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose,
                           const GLfloat * value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+   _mesa_uniform_matrix(ctx, ctx->_Shader->ActiveProgram,
 			2, 2, location, count, transpose, value);
 }
 
@@ -547,7 +547,7 @@ _mesa_UniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose,
                           const GLfloat * value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+   _mesa_uniform_matrix(ctx, ctx->_Shader->ActiveProgram,
 			3, 3, location, count, transpose, value);
 }
 
@@ -556,7 +556,7 @@ _mesa_UniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose,
                           const GLfloat * value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+   _mesa_uniform_matrix(ctx, ctx->_Shader->ActiveProgram,
 			4, 4, location, count, transpose, value);
 }
 
@@ -703,7 +703,7 @@ _mesa_UniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose,
                          const GLfloat *value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+   _mesa_uniform_matrix(ctx, ctx->_Shader->ActiveProgram,
 			2, 3, location, count, transpose, value);
 }
 
@@ -712,7 +712,7 @@ _mesa_UniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose,
                          const GLfloat *value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+   _mesa_uniform_matrix(ctx, ctx->_Shader->ActiveProgram,
 			3, 2, location, count, transpose, value);
 }
 
@@ -721,7 +721,7 @@ _mesa_UniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose,
                          const GLfloat *value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+   _mesa_uniform_matrix(ctx, ctx->_Shader->ActiveProgram,
 			2, 4, location, count, transpose, value);
 }
 
@@ -730,7 +730,7 @@ _mesa_UniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose,
                          const GLfloat *value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+   _mesa_uniform_matrix(ctx, ctx->_Shader->ActiveProgram,
 			4, 2, location, count, transpose, value);
 }
 
@@ -739,7 +739,7 @@ _mesa_UniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose,
                          const GLfloat *value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+   _mesa_uniform_matrix(ctx, ctx->_Shader->ActiveProgram,
 			3, 4, location, count, transpose, value);
 }
 
@@ -748,7 +748,7 @@ _mesa_UniformMatrix4x3fv(GLint location, GLsizei count, GLboolean transpose,
                          const GLfloat *value)
 {
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+   _mesa_uniform_matrix(ctx, ctx->_Shader->ActiveProgram,
 			4, 3, location, count, transpose, value);
 }
 
diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index 9919874a66..95987107f3 100644
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -2917,7 +2917,7 @@ get_mesa_program(struct gl_context *ctx,
 
    set_branchtargets(&v, mesa_instructions, num_instructions);
 
-   if (ctx->Shader.Flags & GLSL_DUMP) {
+   if (ctx->_Shader->Flags & GLSL_DUMP) {
       fprintf(stderr, "\n");
       fprintf(stderr, "GLSL IR for linked %s program %d:\n", target_string,
 	      shader_program->Name);
@@ -2953,7 +2953,7 @@ get_mesa_program(struct gl_context *ctx,
 
    _mesa_reference_program(ctx, &shader->Program, prog);
 
-   if ((ctx->Shader.Flags & GLSL_NO_OPT) == 0) {
+   if ((ctx->_Shader->Flags & GLSL_NO_OPT) == 0) {
       _mesa_optimize_program(ctx, prog);
    }
 
@@ -3096,7 +3096,7 @@ _mesa_glsl_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
       }
    }
 
-   if (ctx->Shader.Flags & GLSL_DUMP) {
+   if (ctx->_Shader->Flags & GLSL_DUMP) {
       if (!prog->LinkStatus) {
 	 fprintf(stderr, "GLSL shader program %d failed to link\n", prog->Name);
       }
diff --git a/src/mesa/state_tracker/st_atom_clip.c b/src/mesa/state_tracker/st_atom_clip.c
index 274b36a624..f82c1332af 100644
--- a/src/mesa/state_tracker/st_atom_clip.c
+++ b/src/mesa/state_tracker/st_atom_clip.c
@@ -52,7 +52,7 @@ static void update_clip( struct st_context *st )
    /* if we have a vertex shader that writes clip vertex we need to pass
       the pre-projection transformed coordinates into the driver. */
    if (st->vp) {
-      if (ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX])
+      if (ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX])
          use_eye = TRUE;
    }
 
diff --git a/src/mesa/state_tracker/st_atom_constbuf.c b/src/mesa/state_tracker/st_atom_constbuf.c
index a5013ed2c8..7984bf742e 100644
--- a/src/mesa/state_tracker/st_atom_constbuf.c
+++ b/src/mesa/state_tracker/st_atom_constbuf.c
@@ -219,7 +219,7 @@ static void st_bind_ubos(struct st_context *st,
 static void bind_vs_ubos(struct st_context *st)
 {
    struct gl_shader_program *prog =
-      st->ctx->Shader.CurrentProgram[MESA_SHADER_VERTEX];
+      st->ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
 
    if (!prog)
       return;
@@ -239,7 +239,7 @@ const struct st_tracked_state st_bind_vs_ubos = {
 static void bind_fs_ubos(struct st_context *st)
 {
    struct gl_shader_program *prog =
-      st->ctx->Shader.CurrentProgram[MESA_SHADER_FRAGMENT];
+      st->ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT];
 
    if (!prog)
       return;
@@ -259,7 +259,7 @@ const struct st_tracked_state st_bind_fs_ubos = {
 static void bind_gs_ubos(struct st_context *st)
 {
    struct gl_shader_program *prog =
-      st->ctx->Shader.CurrentProgram[MESA_SHADER_GEOMETRY];
+      st->ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY];
 
    if (!prog)
       return;
diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c
index 2b36361514..6119cc275f 100644
--- a/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -1364,7 +1364,7 @@ blit_copy_pixels(struct gl_context *ctx, GLint srcx, GLint srcy,
        !ctx->Stencil.Enabled &&
        !ctx->FragmentProgram.Enabled &&
        !ctx->VertexProgram.Enabled &&
-       !ctx->Shader.CurrentProgram[MESA_SHADER_FRAGMENT] &&
+       !ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT] &&
        ctx->DrawBuffer->_NumColorDrawBuffers == 1 &&
        !ctx->Query.CondRenderQuery &&
        !ctx->Query.CurrentOcclusionObject) {
diff --git a/src/mesa/state_tracker/st_draw.c b/src/mesa/state_tracker/st_draw.c
index dba5870a08..c8189faade 100644
--- a/src/mesa/state_tracker/st_draw.c
+++ b/src/mesa/state_tracker/st_draw.c
@@ -131,7 +131,7 @@ setup_index_buffer(struct st_context *st,
 static void
 check_uniforms(struct gl_context *ctx)
 {
-   struct gl_shader_program **shProg = ctx->Shader.CurrentProgram;
+   struct gl_shader_program **shProg = ctx->_Shader->CurrentProgram;
    unsigned j;
 
    for (j = 0; j < 3; j++) {
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index a9e75d8a64..f019a55c21 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -5198,7 +5198,7 @@ get_mesa_program(struct gl_context *ctx,
    /* Write the END instruction. */
    v->emit(NULL, TGSI_OPCODE_END);
 
-   if (ctx->Shader.Flags & GLSL_DUMP) {
+   if (ctx->_Shader->Flags & GLSL_DUMP) {
       printf("\n");
       printf("GLSL IR for linked %s program %d:\n",
              _mesa_shader_stage_to_string(shader->Stage),
diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c
index 692a57008f..2f0ec32f55 100644
--- a/src/mesa/state_tracker/st_program.c
+++ b/src/mesa/state_tracker/st_program.c
@@ -1204,7 +1204,7 @@ st_get_gp_variant(struct st_context *st,
 void
 st_print_shaders(struct gl_context *ctx)
 {
-   struct gl_shader_program **shProg = ctx->Shader.CurrentProgram;
+   struct gl_shader_program **shProg = ctx->_Shader->CurrentProgram;
    unsigned j;
 
    for (j = 0; j < 3; j++) {
diff --git a/src/mesa/swrast/s_fragprog.c b/src/mesa/swrast/s_fragprog.c
index fa45fa97ad..21699f3ea6 100644
--- a/src/mesa/swrast/s_fragprog.c
+++ b/src/mesa/swrast/s_fragprog.c
@@ -182,7 +182,7 @@ init_machine(struct gl_context *ctx, struct gl_program_machine *machine,
    machine->Samplers = program->Base.SamplerUnits;
 
    /* if running a GLSL program (not ARB_fragment_program) */
-   if (ctx->Shader.CurrentProgram[MESA_SHADER_FRAGMENT]) {
+   if (ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT]) {
       /* Store front/back facing value */
       machine->Attribs[VARYING_SLOT_FACE][col][0] = 1.0F - span->facing;
    }