Mesa (master): mesa: remove STATE_INTERNAL

GitLab Mirror gitlab-mirror at kemper.freedesktop.org
Thu Jan 21 22:16:30 UTC 2021


Module: Mesa
Branch: master
Commit: b4f3497786ef4c4923844b56133955a2f48bfe59
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b4f3497786ef4c4923844b56133955a2f48bfe59

Author: Marek Olšák <marek.olsak at amd.com>
Date:   Fri Dec  4 19:19:22 2020 -0500

mesa: remove STATE_INTERNAL

Let's flatten the tokens to generate optimal code for fetch_state.

There was only one name conflict: STATE_NORMAL_SCALE was used both as
internal and non-internal.

Reviewed-by: Eric Anholt <eric at anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8183>

---

 src/compiler/glsl/builtin_variables.cpp            |  18 +-
 .../glsl/lower_blend_equation_advanced.cpp         |   5 +-
 .../drivers/d3d12/d3d12_lower_point_sprite.c       |   3 +-
 src/gallium/drivers/d3d12/d3d12_nir_passes.c       |  12 +-
 src/mesa/drivers/dri/i965/brw_program.c            |   6 +-
 src/mesa/main/ffvertex_prog.c                      |  19 +-
 src/mesa/program/prog_statevars.c                  | 495 ++++++++++-----------
 src/mesa/program/prog_statevars.h                  |   3 +-
 src/mesa/program/programopt.c                      |   2 +-
 src/mesa/state_tracker/st_atifs_to_nir.c           |   2 +-
 src/mesa/state_tracker/st_glsl_to_nir.cpp          |   4 +-
 src/mesa/state_tracker/st_glsl_to_tgsi.cpp         |   6 +-
 src/mesa/state_tracker/st_program.c                |  17 +-
 13 files changed, 289 insertions(+), 303 deletions(-)

diff --git a/src/compiler/glsl/builtin_variables.cpp b/src/compiler/glsl/builtin_variables.cpp
index d894e618ad4..42017905b11 100644
--- a/src/compiler/glsl/builtin_variables.cpp
+++ b/src/compiler/glsl/builtin_variables.cpp
@@ -177,19 +177,19 @@ static const struct gl_builtin_uniform_element gl_Fog_elements[] = {
 };
 
 static const struct gl_builtin_uniform_element gl_NormalScale_elements[] = {
-   {NULL, {STATE_NORMAL_SCALE}, SWIZZLE_XXXX},
+   {NULL, {STATE_NORMAL_SCALE_EYESPACE}, SWIZZLE_XXXX},
 };
 
 static const struct gl_builtin_uniform_element gl_FogParamsOptimizedMESA_elements[] = {
-   {NULL, {STATE_INTERNAL, STATE_FOG_PARAMS_OPTIMIZED}, SWIZZLE_XYZW},
+   {NULL, {STATE_FOG_PARAMS_OPTIMIZED}, SWIZZLE_XYZW},
 };
 
 static const struct gl_builtin_uniform_element gl_CurrentAttribVertMESA_elements[] = {
-   {NULL, {STATE_INTERNAL, STATE_CURRENT_ATTRIB, 0}, SWIZZLE_XYZW},
+   {NULL, {STATE_CURRENT_ATTRIB, 0}, SWIZZLE_XYZW},
 };
 
 static const struct gl_builtin_uniform_element gl_CurrentAttribFragMESA_elements[] = {
-   {NULL, {STATE_INTERNAL, STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED, 0}, SWIZZLE_XYZW},
+   {NULL, {STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED, 0}, SWIZZLE_XYZW},
 };
 
 #define MATRIX(name, statevar)				\
@@ -618,14 +618,8 @@ builtin_variable_generator::add_uniform(const glsl_type *type,
 	    &statevar->elements[j];
 
 	 memcpy(slots->tokens, element->tokens, sizeof(element->tokens));
-	 if (type->is_array()) {
-	    if (strcmp(name, "gl_CurrentAttribVertMESA") == 0 ||
-		strcmp(name, "gl_CurrentAttribFragMESA") == 0) {
-	       slots->tokens[2] = a;
-	    } else {
-	       slots->tokens[1] = a;
-	    }
-	 }
+	 if (type->is_array())
+            slots->tokens[1] = a;
 
 	 slots->swizzle = element->swizzle;
 	 slots++;
diff --git a/src/compiler/glsl/lower_blend_equation_advanced.cpp b/src/compiler/glsl/lower_blend_equation_advanced.cpp
index 76d4c8b7be4..5ea4222b592 100644
--- a/src/compiler/glsl/lower_blend_equation_advanced.cpp
+++ b/src/compiler/glsl/lower_blend_equation_advanced.cpp
@@ -489,9 +489,8 @@ lower_blend_equation_advanced(struct gl_linked_shader *sh, bool coherent)
    mode->allocate_state_slots(1);
    ir_state_slot *slot0 = &mode->get_state_slots()[0];
    slot0->swizzle = SWIZZLE_XXXX;
-   slot0->tokens[0] = STATE_INTERNAL;
-   slot0->tokens[1] = STATE_ADVANCED_BLENDING_MODE;
-   for (int i = 2; i < STATE_LENGTH; i++)
+   slot0->tokens[0] = STATE_ADVANCED_BLENDING_MODE;
+   for (int i = 1; i < STATE_LENGTH; i++)
       slot0->tokens[i] = 0;
 
    sh->ir->push_head(fb);
diff --git a/src/gallium/drivers/d3d12/d3d12_lower_point_sprite.c b/src/gallium/drivers/d3d12/d3d12_lower_point_sprite.c
index 79fa759e2cb..4212d4169a5 100644
--- a/src/gallium/drivers/d3d12/d3d12_lower_point_sprite.c
+++ b/src/gallium/drivers/d3d12/d3d12_lower_point_sprite.c
@@ -231,8 +231,7 @@ d3d12_lower_point_sprite(nir_shader *shader,
                          unsigned point_coord_enable,
                          uint64_t next_inputs_read)
 {
-   const gl_state_index16 tokens[4] = { STATE_INTERNAL,
-                                        STATE_INTERNAL_DRIVER,
+   const gl_state_index16 tokens[4] = { STATE_INTERNAL_DRIVER,
                                         D3D12_STATE_VAR_PT_SPRITE };
    struct lower_state state;
    bool progress = false;
diff --git a/src/gallium/drivers/d3d12/d3d12_nir_passes.c b/src/gallium/drivers/d3d12/d3d12_nir_passes.c
index 2686926eb97..4866e0eaaab 100644
--- a/src/gallium/drivers/d3d12/d3d12_nir_passes.c
+++ b/src/gallium/drivers/d3d12/d3d12_nir_passes.c
@@ -43,7 +43,7 @@ get_state_var(nir_builder *b,
               const struct glsl_type *var_type,
               nir_variable **out_var)
 {
-   const gl_state_index16 tokens[STATE_LENGTH] = { STATE_INTERNAL, STATE_INTERNAL_DRIVER, var_enum };
+   const gl_state_index16 tokens[STATE_LENGTH] = { STATE_INTERNAL_DRIVER, var_enum };
    if (*out_var == NULL) {
       nir_variable *var = nir_variable_create(b->shader,
                                               nir_var_uniform,
@@ -432,10 +432,10 @@ lower_instr(nir_intrinsic_instr *instr, nir_builder *b,
 
    if (variable == NULL ||
        variable->num_state_slots != 1 ||
-       variable->state_slots[0].tokens[1] != STATE_INTERNAL_DRIVER)
+       variable->state_slots[0].tokens[0] != STATE_INTERNAL_DRIVER)
       return false;
 
-   enum d3d12_state_var var = variable->state_slots[0].tokens[2];
+   enum d3d12_state_var var = variable->state_slots[0].tokens[1];
    nir_ssa_def *ubo_idx = nir_imm_int(b, binding);
    nir_ssa_def *ubo_offset =  nir_imm_int(b, get_state_var_offset(shader, var) * 4);
    nir_ssa_def *load =
@@ -476,7 +476,7 @@ d3d12_lower_state_vars(nir_shader *nir, struct d3d12_shader *shader)
 
    nir_foreach_variable_with_modes_safe(var, nir, nir_var_uniform) {
       if (var->num_state_slots == 1 &&
-          var->state_slots[0].tokens[1] == STATE_INTERNAL_DRIVER) {
+          var->state_slots[0].tokens[0] == STATE_INTERNAL_DRIVER) {
          if (var->data.mode == nir_var_mem_ubo) {
             binding = var->data.binding;
          }
@@ -510,13 +510,13 @@ d3d12_lower_state_vars(nir_shader *nir, struct d3d12_shader *shader)
       /* Remove state variables */
       nir_foreach_variable_with_modes_safe(var, nir, nir_var_uniform) {
          if (var->num_state_slots == 1 &&
-             var->state_slots[0].tokens[1] == STATE_INTERNAL_DRIVER) {
+             var->state_slots[0].tokens[0] == STATE_INTERNAL_DRIVER) {
             exec_node_remove(&var->node);
             nir->num_uniforms--;
          }
       }
 
-      const gl_state_index16 tokens[STATE_LENGTH] = { STATE_INTERNAL, STATE_INTERNAL_DRIVER };
+      const gl_state_index16 tokens[STATE_LENGTH] = { STATE_INTERNAL_DRIVER };
       const struct glsl_type *type = glsl_array_type(glsl_vec4_type(),
                                                      shader->state_vars_size / 4, 0);
       nir_variable *ubo = nir_variable_create(nir, nir_var_mem_ubo, type,
diff --git a/src/mesa/drivers/dri/i965/brw_program.c b/src/mesa/drivers/dri/i965/brw_program.c
index 71606b9f845..2c5d53d9d51 100644
--- a/src/mesa/drivers/dri/i965/brw_program.c
+++ b/src/mesa/drivers/dri/i965/brw_program.c
@@ -129,7 +129,7 @@ brw_create_nir(struct brw_context *brw,
    if (stage == MESA_SHADER_TESS_CTRL) {
       /* Lower gl_PatchVerticesIn from a sys. value to a uniform on Gen8+. */
       static const gl_state_index16 tokens[STATE_LENGTH] =
-         { STATE_INTERNAL, STATE_TCS_PATCH_VERTICES_IN };
+         { STATE_TCS_PATCH_VERTICES_IN };
       nir_lower_patch_vertices(nir, 0, devinfo->gen >= 8 ? tokens : NULL);
    }
 
@@ -142,13 +142,13 @@ brw_create_nir(struct brw_context *brw,
       uint32_t static_patch_vertices =
          tcs ? tcs->Program->nir->info.tess.tcs_vertices_out : 0;
       static const gl_state_index16 tokens[STATE_LENGTH] =
-         { STATE_INTERNAL, STATE_TES_PATCH_VERTICES_IN };
+         { STATE_TES_PATCH_VERTICES_IN };
       nir_lower_patch_vertices(nir, static_patch_vertices, tokens);
    }
 
    if (stage == MESA_SHADER_FRAGMENT) {
       static const struct nir_lower_wpos_ytransform_options wpos_options = {
-         .state_tokens = {STATE_INTERNAL, STATE_FB_WPOS_Y_TRANSFORM, 0, 0},
+         .state_tokens = {STATE_FB_WPOS_Y_TRANSFORM, 0, 0},
          .fs_coord_pixel_center_integer = 1,
          .fs_coord_origin_upper_left = 1,
       };
diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c
index 66fe688de3c..9158a3595e9 100644
--- a/src/mesa/main/ffvertex_prog.c
+++ b/src/mesa/main/ffvertex_prog.c
@@ -443,7 +443,7 @@ static struct ureg register_input( struct tnl_program *p, GLuint input )
       return make_ureg(PROGRAM_INPUT, input);
    }
    else {
-      return register_param3( p, STATE_INTERNAL, STATE_CURRENT_ATTRIB, input );
+      return register_param2(p, STATE_CURRENT_ATTRIB, input);
    }
 }
 
@@ -797,8 +797,7 @@ static struct ureg get_transformed_normal( struct tnl_program *p )
       else if (p->state->need_eye_coords == p->state->rescale_normals) {
          /* This is already adjusted for eye/non-eye rendering:
           */
-	 struct ureg rescale = register_param2(p, STATE_INTERNAL,
-                                               STATE_NORMAL_SCALE);
+	 struct ureg rescale = register_param1(p, STATE_NORMAL_SCALE);
 
 	 emit_op2( p, OPCODE_MUL, transformed_normal, 0, normal, rescale );
          normal = transformed_normal;
@@ -947,8 +946,7 @@ static struct ureg calculate_light_attenuation( struct tnl_program *p,
    /* Calculate spot attenuation:
     */
    if (!p->state->unit[i].light_spotcutoff_is_180) {
-      struct ureg spot_dir_norm = register_param3(p, STATE_INTERNAL,
-						  STATE_LIGHT_SPOT_DIR_NORMALIZED, i);
+      struct ureg spot_dir_norm = register_param2(p, STATE_LIGHT_SPOT_DIR_NORMALIZED, i);
       struct ureg spot = get_temp(p);
       struct ureg slt = get_temp(p);
 
@@ -1117,11 +1115,9 @@ static void build_lighting( struct tnl_program *p )
 
 	 count++;
          if (p->state->unit[i].light_eyepos3_is_zero) {
-             VPpli = register_param3(p, STATE_INTERNAL,
-                                     STATE_LIGHT_POSITION_NORMALIZED, i);
+             VPpli = register_param2(p, STATE_LIGHT_POSITION_NORMALIZED, i);
          } else {
-            struct ureg Ppli = register_param3(p, STATE_INTERNAL,
-                                               STATE_LIGHT_POSITION, i);
+            struct ureg Ppli = register_param2(p, STATE_LIGHT_POSITION, i);
             struct ureg V = get_eye_position(p);
 
             VPpli = get_temp(p);
@@ -1153,8 +1149,7 @@ static void build_lighting( struct tnl_program *p )
                emit_op2(p, OPCODE_SUB, half, 0, VPpli, eye_hat);
                emit_normalize_vec3(p, half, half);
             } else if (p->state->unit[i].light_eyepos3_is_zero) {
-               half = register_param3(p, STATE_INTERNAL,
-                                      STATE_LIGHT_HALF_VECTOR, i);
+               half = register_param2(p, STATE_LIGHT_HALF_VECTOR, i);
             } else {
                struct ureg z_dir = swizzle(get_identity_param(p),X,Y,W,Z);
                half = get_temp(p);
@@ -1521,7 +1516,7 @@ static void build_texture_transform( struct tnl_program *p )
 static void build_atten_pointsize( struct tnl_program *p )
 {
    struct ureg eye = get_eye_position_z(p);
-   struct ureg state_size = register_param2(p, STATE_INTERNAL, STATE_POINT_SIZE_CLAMPED);
+   struct ureg state_size = register_param1(p, STATE_POINT_SIZE_CLAMPED);
    struct ureg state_attenuation = register_param1(p, STATE_POINT_ATTENUATION);
    struct ureg out = register_output(p, VARYING_SLOT_PSIZ);
    struct ureg ut = get_temp(p);
diff --git a/src/mesa/program/prog_statevars.c b/src/mesa/program/prog_statevars.c
index 52514361494..790e79238a5 100644
--- a/src/mesa/program/prog_statevars.c
+++ b/src/mesa/program/prog_statevars.c
@@ -472,226 +472,217 @@ fetch_state(struct gl_context *ctx, const gl_state_index16 state[],
       }
       return;
 
-   case STATE_NORMAL_SCALE:
+   case STATE_NORMAL_SCALE_EYESPACE:
       ASSIGN_4V(value, ctx->_ModelViewInvScaleEyespace, 0, 0, 1);
       return;
 
-   case STATE_INTERNAL:
-      switch (state[1]) {
-      case STATE_CURRENT_ATTRIB:
-         {
-            const GLuint idx = (GLuint) state[2];
-            COPY_4V(value, ctx->Current.Attrib[idx]);
-         }
-         return;
+   case STATE_CURRENT_ATTRIB:
+      {
+         const GLuint idx = (GLuint) state[1];
+         COPY_4V(value, ctx->Current.Attrib[idx]);
+      }
+      return;
 
-      case STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED:
-         {
-            const GLuint idx = (GLuint) state[2];
-            if(ctx->Light._ClampVertexColor &&
-               (idx == VERT_ATTRIB_COLOR0 ||
-                idx == VERT_ATTRIB_COLOR1)) {
-               value[0] = SATURATE(ctx->Current.Attrib[idx][0]);
-               value[1] = SATURATE(ctx->Current.Attrib[idx][1]);
-               value[2] = SATURATE(ctx->Current.Attrib[idx][2]);
-               value[3] = SATURATE(ctx->Current.Attrib[idx][3]);
-            }
-            else
-               COPY_4V(value, ctx->Current.Attrib[idx]);
+   case STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED:
+      {
+         const GLuint idx = (GLuint) state[1];
+         if(ctx->Light._ClampVertexColor &&
+            (idx == VERT_ATTRIB_COLOR0 ||
+             idx == VERT_ATTRIB_COLOR1)) {
+            value[0] = SATURATE(ctx->Current.Attrib[idx][0]);
+            value[1] = SATURATE(ctx->Current.Attrib[idx][1]);
+            value[2] = SATURATE(ctx->Current.Attrib[idx][2]);
+            value[3] = SATURATE(ctx->Current.Attrib[idx][3]);
          }
-         return;
+         else
+            COPY_4V(value, ctx->Current.Attrib[idx]);
+      }
+      return;
 
-      case STATE_NORMAL_SCALE:
-         ASSIGN_4V(value,
-                   ctx->_ModelViewInvScale,
-                   ctx->_ModelViewInvScale,
-                   ctx->_ModelViewInvScale,
-                   1);
-         return;
+   case STATE_NORMAL_SCALE:
+      ASSIGN_4V(value,
+                ctx->_ModelViewInvScale,
+                ctx->_ModelViewInvScale,
+                ctx->_ModelViewInvScale,
+                1);
+      return;
 
-      case STATE_FOG_PARAMS_OPTIMIZED: {
-         /* for simpler per-vertex/pixel fog calcs. POW (for EXP/EXP2 fog)
-          * might be more expensive than EX2 on some hw, plus it needs
-          * another constant (e) anyway. Linear fog can now be done with a
-          * single MAD.
-          * linear: fogcoord * -1/(end-start) + end/(end-start)
-          * exp: 2^-(density/ln(2) * fogcoord)
-          * exp2: 2^-((density/(sqrt(ln(2))) * fogcoord)^2)
-          */
-         float val =  (ctx->Fog.End == ctx->Fog.Start)
-            ? 1.0f : (GLfloat)(-1.0F / (ctx->Fog.End - ctx->Fog.Start));
-         value[0] = val;
-         value[1] = ctx->Fog.End * -val;
-         value[2] = (GLfloat)(ctx->Fog.Density * M_LOG2E); /* M_LOG2E == 1/ln(2) */
-         value[3] = (GLfloat)(ctx->Fog.Density * ONE_DIV_SQRT_LN2);
-         return;
-      }
+   case STATE_FOG_PARAMS_OPTIMIZED: {
+      /* for simpler per-vertex/pixel fog calcs. POW (for EXP/EXP2 fog)
+       * might be more expensive than EX2 on some hw, plus it needs
+       * another constant (e) anyway. Linear fog can now be done with a
+       * single MAD.
+       * linear: fogcoord * -1/(end-start) + end/(end-start)
+       * exp: 2^-(density/ln(2) * fogcoord)
+       * exp2: 2^-((density/(sqrt(ln(2))) * fogcoord)^2)
+       */
+      float val =  (ctx->Fog.End == ctx->Fog.Start)
+         ? 1.0f : (GLfloat)(-1.0F / (ctx->Fog.End - ctx->Fog.Start));
+      value[0] = val;
+      value[1] = ctx->Fog.End * -val;
+      value[2] = (GLfloat)(ctx->Fog.Density * M_LOG2E); /* M_LOG2E == 1/ln(2) */
+      value[3] = (GLfloat)(ctx->Fog.Density * ONE_DIV_SQRT_LN2);
+      return;
+   }
 
-      case STATE_POINT_SIZE_CLAMPED:
-         {
-           /* this includes implementation dependent limits, to avoid
-            * another potentially necessary clamp.
-            * Note: for sprites, point smooth (point AA) is ignored
-            * and we'll clamp to MinPointSizeAA and MaxPointSize, because we
-            * expect drivers will want to say their minimum for AA size is 0.0
-            * but for non-AA it's 1.0 (because normal points with size below 1.0
-            * need to get rounded up to 1.0, hence never disappear). GL does
-            * not specify max clamp size for sprites, other than it needs to be
-            * at least as large as max AA size, hence use non-AA size there.
-            */
-            GLfloat minImplSize;
-            GLfloat maxImplSize;
-            if (ctx->Point.PointSprite) {
-               minImplSize = ctx->Const.MinPointSizeAA;
-               maxImplSize = ctx->Const.MaxPointSize;
-            }
-            else if (ctx->Point.SmoothFlag || _mesa_is_multisample_enabled(ctx)) {
-               minImplSize = ctx->Const.MinPointSizeAA;
-               maxImplSize = ctx->Const.MaxPointSizeAA;
-            }
-            else {
-               minImplSize = ctx->Const.MinPointSize;
-               maxImplSize = ctx->Const.MaxPointSize;
-            }
-            value[0] = ctx->Point.Size;
-            value[1] = ctx->Point.MinSize >= minImplSize ? ctx->Point.MinSize : minImplSize;
-            value[2] = ctx->Point.MaxSize <= maxImplSize ? ctx->Point.MaxSize : maxImplSize;
-            value[3] = ctx->Point.Threshold;
+   case STATE_POINT_SIZE_CLAMPED:
+      {
+        /* this includes implementation dependent limits, to avoid
+         * another potentially necessary clamp.
+         * Note: for sprites, point smooth (point AA) is ignored
+         * and we'll clamp to MinPointSizeAA and MaxPointSize, because we
+         * expect drivers will want to say their minimum for AA size is 0.0
+         * but for non-AA it's 1.0 (because normal points with size below 1.0
+         * need to get rounded up to 1.0, hence never disappear). GL does
+         * not specify max clamp size for sprites, other than it needs to be
+         * at least as large as max AA size, hence use non-AA size there.
+         */
+         GLfloat minImplSize;
+         GLfloat maxImplSize;
+         if (ctx->Point.PointSprite) {
+            minImplSize = ctx->Const.MinPointSizeAA;
+            maxImplSize = ctx->Const.MaxPointSize;
          }
-         return;
-      case STATE_LIGHT_SPOT_DIR_NORMALIZED:
-         {
-            /* here, state[2] is the light number */
-            /* pre-normalize spot dir */
-            const GLuint ln = (GLuint) state[2];
-            COPY_3V(value, ctx->Light.Light[ln]._NormSpotDirection);
-            value[3] = ctx->Light.LightSource[ln]._CosCutoff;
+         else if (ctx->Point.SmoothFlag || _mesa_is_multisample_enabled(ctx)) {
+            minImplSize = ctx->Const.MinPointSizeAA;
+            maxImplSize = ctx->Const.MaxPointSizeAA;
          }
-         return;
-
-      case STATE_LIGHT_POSITION:
-         {
-            const GLuint ln = (GLuint) state[2];
-            COPY_4V(value, ctx->Light.Light[ln]._Position);
+         else {
+            minImplSize = ctx->Const.MinPointSize;
+            maxImplSize = ctx->Const.MaxPointSize;
          }
-         return;
+         value[0] = ctx->Point.Size;
+         value[1] = ctx->Point.MinSize >= minImplSize ? ctx->Point.MinSize : minImplSize;
+         value[2] = ctx->Point.MaxSize <= maxImplSize ? ctx->Point.MaxSize : maxImplSize;
+         value[3] = ctx->Point.Threshold;
+      }
+      return;
+   case STATE_LIGHT_SPOT_DIR_NORMALIZED:
+      {
+         /* here, state[1] is the light number */
+         /* pre-normalize spot dir */
+         const GLuint ln = (GLuint) state[1];
+         COPY_3V(value, ctx->Light.Light[ln]._NormSpotDirection);
+         value[3] = ctx->Light.LightSource[ln]._CosCutoff;
+      }
+      return;
 
-      case STATE_LIGHT_POSITION_NORMALIZED:
-         {
-            const GLuint ln = (GLuint) state[2];
-            float p[4];
-            COPY_4V(p, ctx->Light.Light[ln]._Position);
-            NORMALIZE_3FV(p);
-            COPY_4V(value, p);
-         }
-         return;
+   case STATE_LIGHT_POSITION:
+      {
+         const GLuint ln = (GLuint) state[1];
+         COPY_4V(value, ctx->Light.Light[ln]._Position);
+      }
+      return;
 
-      case STATE_LIGHT_HALF_VECTOR:
-         {
-            const GLuint ln = (GLuint) state[2];
-            GLfloat p[3];
-            /* Compute infinite half angle vector:
-             *   halfVector = normalize(normalize(lightPos) + (0, 0, 1))
-             * light.EyePosition.w should be 0 for infinite lights.
-             */
-            COPY_3V(p, ctx->Light.Light[ln]._Position);
-            NORMALIZE_3FV(p);
-            ADD_3V(p, p, ctx->_EyeZDir);
-            NORMALIZE_3FV(p);
-            COPY_3V(value, p);
-            value[3] = 1.0;
-         }
-         return;
+   case STATE_LIGHT_POSITION_NORMALIZED:
+      {
+         const GLuint ln = (GLuint) state[1];
+         float p[4];
+         COPY_4V(p, ctx->Light.Light[ln]._Position);
+         NORMALIZE_3FV(p);
+         COPY_4V(value, p);
+      }
+      return;
 
-      case STATE_PT_SCALE:
-         value[0] = ctx->Pixel.RedScale;
-         value[1] = ctx->Pixel.GreenScale;
-         value[2] = ctx->Pixel.BlueScale;
-         value[3] = ctx->Pixel.AlphaScale;
-         return;
+   case STATE_LIGHT_HALF_VECTOR:
+      {
+         const GLuint ln = (GLuint) state[1];
+         GLfloat p[3];
+         /* Compute infinite half angle vector:
+          *   halfVector = normalize(normalize(lightPos) + (0, 0, 1))
+          * light.EyePosition.w should be 0 for infinite lights.
+          */
+         COPY_3V(p, ctx->Light.Light[ln]._Position);
+         NORMALIZE_3FV(p);
+         ADD_3V(p, p, ctx->_EyeZDir);
+         NORMALIZE_3FV(p);
+         COPY_3V(value, p);
+         value[3] = 1.0;
+      }
+      return;
 
-      case STATE_PT_BIAS:
-         value[0] = ctx->Pixel.RedBias;
-         value[1] = ctx->Pixel.GreenBias;
-         value[2] = ctx->Pixel.BlueBias;
-         value[3] = ctx->Pixel.AlphaBias;
-         return;
+   case STATE_PT_SCALE:
+      value[0] = ctx->Pixel.RedScale;
+      value[1] = ctx->Pixel.GreenScale;
+      value[2] = ctx->Pixel.BlueScale;
+      value[3] = ctx->Pixel.AlphaScale;
+      return;
 
-      case STATE_FB_SIZE:
-         value[0] = (GLfloat) (ctx->DrawBuffer->Width - 1);
-         value[1] = (GLfloat) (ctx->DrawBuffer->Height - 1);
-         value[2] = 0.0F;
-         value[3] = 0.0F;
-         return;
+   case STATE_PT_BIAS:
+      value[0] = ctx->Pixel.RedBias;
+      value[1] = ctx->Pixel.GreenBias;
+      value[2] = ctx->Pixel.BlueBias;
+      value[3] = ctx->Pixel.AlphaBias;
+      return;
 
-      case STATE_FB_WPOS_Y_TRANSFORM:
-         /* A driver may negate this conditional by using ZW swizzle
-          * instead of XY (based on e.g. some other state). */
-         if (!ctx->DrawBuffer->FlipY) {
-            /* Identity (XY) followed by flipping Y upside down (ZW). */
-            value[0] = 1.0F;
-            value[1] = 0.0F;
-            value[2] = -1.0F;
-            value[3] = _mesa_geometric_height(ctx->DrawBuffer);
-         } else {
-            /* Flipping Y upside down (XY) followed by identity (ZW). */
-            value[0] = -1.0F;
-            value[1] = _mesa_geometric_height(ctx->DrawBuffer);
-            value[2] = 1.0F;
-            value[3] = 0.0F;
-         }
-         return;
+   case STATE_FB_SIZE:
+      value[0] = (GLfloat) (ctx->DrawBuffer->Width - 1);
+      value[1] = (GLfloat) (ctx->DrawBuffer->Height - 1);
+      value[2] = 0.0F;
+      value[3] = 0.0F;
+      return;
 
-      case STATE_FB_PNTC_Y_TRANSFORM:
-         {
-            bool flip_y = (ctx->Point.SpriteOrigin == GL_LOWER_LEFT) ^
-               (ctx->DrawBuffer->FlipY);
+   case STATE_FB_WPOS_Y_TRANSFORM:
+      /* A driver may negate this conditional by using ZW swizzle
+       * instead of XY (based on e.g. some other state). */
+      if (!ctx->DrawBuffer->FlipY) {
+         /* Identity (XY) followed by flipping Y upside down (ZW). */
+         value[0] = 1.0F;
+         value[1] = 0.0F;
+         value[2] = -1.0F;
+         value[3] = _mesa_geometric_height(ctx->DrawBuffer);
+      } else {
+         /* Flipping Y upside down (XY) followed by identity (ZW). */
+         value[0] = -1.0F;
+         value[1] = _mesa_geometric_height(ctx->DrawBuffer);
+         value[2] = 1.0F;
+         value[3] = 0.0F;
+      }
+      return;
 
-            value[0] = flip_y ? -1.0F : 1.0F;
-            value[1] = flip_y ? 1.0F : 0.0F;
-            value[2] = 0.0F;
-            value[3] = 0.0F;
-         }
-         return;
+   case STATE_FB_PNTC_Y_TRANSFORM:
+      {
+         bool flip_y = (ctx->Point.SpriteOrigin == GL_LOWER_LEFT) ^
+            (ctx->DrawBuffer->FlipY);
 
-      case STATE_TCS_PATCH_VERTICES_IN:
-         val[0].i = ctx->TessCtrlProgram.patch_vertices;
-         return;
+         value[0] = flip_y ? -1.0F : 1.0F;
+         value[1] = flip_y ? 1.0F : 0.0F;
+         value[2] = 0.0F;
+         value[3] = 0.0F;
+      }
+      return;
 
-      case STATE_TES_PATCH_VERTICES_IN:
-         if (ctx->TessCtrlProgram._Current)
-            val[0].i = ctx->TessCtrlProgram._Current->info.tess.tcs_vertices_out;
-         else
-            val[0].i = ctx->TessCtrlProgram.patch_vertices;
-         return;
+   case STATE_TCS_PATCH_VERTICES_IN:
+      val[0].i = ctx->TessCtrlProgram.patch_vertices;
+      return;
 
-      case STATE_ADVANCED_BLENDING_MODE:
-         val[0].i = _mesa_get_advanced_blend_sh_constant(
-                      ctx->Color.BlendEnabled, ctx->Color._AdvancedBlendMode);
-         return;
+   case STATE_TES_PATCH_VERTICES_IN:
+      if (ctx->TessCtrlProgram._Current)
+         val[0].i = ctx->TessCtrlProgram._Current->info.tess.tcs_vertices_out;
+      else
+         val[0].i = ctx->TessCtrlProgram.patch_vertices;
+      return;
 
-      case STATE_ALPHA_REF:
-         value[0] = ctx->Color.AlphaRefUnclamped;
-         return;
+   case STATE_ADVANCED_BLENDING_MODE:
+      val[0].i = _mesa_get_advanced_blend_sh_constant(
+                   ctx->Color.BlendEnabled, ctx->Color._AdvancedBlendMode);
+      return;
 
-      case STATE_CLIP_INTERNAL:
-         {
-            const GLuint plane = (GLuint) state[2];
-            COPY_4V(value, ctx->Transform._ClipUserPlane[plane]);
-         }
-         return;
+   case STATE_ALPHA_REF:
+      value[0] = ctx->Color.AlphaRefUnclamped;
+      return;
 
-      /* XXX: make sure new tokens added here are also handled in the
-       * _mesa_program_state_flags() switch, below.
-       */
-      default:
-         /* Unknown state indexes are silently ignored here.
-          * Drivers may do something special.
-          */
-         return;
+   case STATE_CLIP_INTERNAL:
+      {
+         const GLuint plane = (GLuint) state[1];
+         COPY_4V(value, ctx->Transform._ClipUserPlane[plane]);
       }
       return;
 
+   case STATE_INTERNAL_DRIVER:
+      /* Internal driver state */
+      return;
+
    case STATE_NOT_STATE_VAR:
       /* Most likely PROGRAM_CONSTANT. This only happens in rare cases, e.g.
        * ARB_vp with ARL, which can't sort parameters by type.
@@ -789,55 +780,49 @@ _mesa_program_state_flags(const gl_state_index16 state[STATE_LENGTH])
    case STATE_VERTEX_PROGRAM:
       return _NEW_PROGRAM;
 
+   case STATE_NORMAL_SCALE_EYESPACE:
+      return _NEW_MODELVIEW;
+
+   case STATE_CURRENT_ATTRIB:
+      return _NEW_CURRENT_ATTRIB;
+   case STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED:
+      return _NEW_CURRENT_ATTRIB | _NEW_LIGHT | _NEW_BUFFERS;
+
    case STATE_NORMAL_SCALE:
       return _NEW_MODELVIEW;
 
-   case STATE_INTERNAL:
-      switch (state[1]) {
-      case STATE_CURRENT_ATTRIB:
-         return _NEW_CURRENT_ATTRIB;
-      case STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED:
-         return _NEW_CURRENT_ATTRIB | _NEW_LIGHT | _NEW_BUFFERS;
-
-      case STATE_NORMAL_SCALE:
-         return _NEW_MODELVIEW;
-
-      case STATE_FOG_PARAMS_OPTIMIZED:
-	 return _NEW_FOG;
-      case STATE_POINT_SIZE_CLAMPED:
-         return _NEW_POINT | _NEW_MULTISAMPLE;
-      case STATE_LIGHT_SPOT_DIR_NORMALIZED:
-      case STATE_LIGHT_POSITION:
-      case STATE_LIGHT_POSITION_NORMALIZED:
-      case STATE_LIGHT_HALF_VECTOR:
-         return _NEW_LIGHT;
-
-      case STATE_PT_SCALE:
-      case STATE_PT_BIAS:
-         return _NEW_PIXEL;
-
-      case STATE_FB_SIZE:
-      case STATE_FB_WPOS_Y_TRANSFORM:
-         return _NEW_BUFFERS;
-
-      case STATE_FB_PNTC_Y_TRANSFORM:
-         return _NEW_BUFFERS | _NEW_POINT;
-
-      case STATE_ADVANCED_BLENDING_MODE:
-         return _NEW_COLOR;
-
-      case STATE_ALPHA_REF:
-         return _NEW_COLOR;
-
-      case STATE_CLIP_INTERNAL:
-         return _NEW_TRANSFORM | _NEW_PROJECTION;
-
-      default:
-         /* unknown state indexes are silently ignored and
-         *  no flag set, since it is handled by the driver.
-         */
-	 return 0;
-      }
+   case STATE_FOG_PARAMS_OPTIMIZED:
+      return _NEW_FOG;
+   case STATE_POINT_SIZE_CLAMPED:
+      return _NEW_POINT | _NEW_MULTISAMPLE;
+   case STATE_LIGHT_SPOT_DIR_NORMALIZED:
+   case STATE_LIGHT_POSITION:
+   case STATE_LIGHT_POSITION_NORMALIZED:
+   case STATE_LIGHT_HALF_VECTOR:
+      return _NEW_LIGHT;
+
+   case STATE_PT_SCALE:
+   case STATE_PT_BIAS:
+      return _NEW_PIXEL;
+
+   case STATE_FB_SIZE:
+   case STATE_FB_WPOS_Y_TRANSFORM:
+      return _NEW_BUFFERS;
+
+   case STATE_FB_PNTC_Y_TRANSFORM:
+      return _NEW_BUFFERS | _NEW_POINT;
+
+   case STATE_ADVANCED_BLENDING_MODE:
+      return _NEW_COLOR;
+
+   case STATE_ALPHA_REF:
+      return _NEW_COLOR;
+
+   case STATE_CLIP_INTERNAL:
+      return _NEW_TRANSFORM | _NEW_PROJECTION;
+
+   case STATE_INTERNAL_DRIVER:
+      return 0; /* internal driver state */
 
    case STATE_NOT_STATE_VAR:
       return 0;
@@ -1035,16 +1020,15 @@ append_token(char *dst, gl_state_index k)
    case STATE_LOCAL:
       append(dst, "local");
       break;
-   /* BEGIN internal state vars */
-   case STATE_INTERNAL:
-      append(dst, "internal.");
-      break;
    case STATE_CURRENT_ATTRIB:
       append(dst, "current");
       break;
    case STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED:
       append(dst, "currentAttribMaybeVPClamped");
       break;
+   case STATE_NORMAL_SCALE_EYESPACE:
+      append(dst, "normalScaleEyeSpace");
+      break;
    case STATE_NORMAL_SCALE:
       append(dst, "normalScale");
       break;
@@ -1226,14 +1210,29 @@ _mesa_program_state_string(const gl_state_index16 state[STATE_LENGTH])
       append_token(str, state[1]);
       append_index(str, state[2], false);
       break;
+   case STATE_NORMAL_SCALE_EYESPACE:
+      break;
+   case STATE_CURRENT_ATTRIB:
+   case STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED:
+   case STATE_LIGHT_SPOT_DIR_NORMALIZED:
+   case STATE_LIGHT_POSITION:
+   case STATE_LIGHT_POSITION_NORMALIZED:
+   case STATE_LIGHT_HALF_VECTOR:
+   case STATE_CLIP_INTERNAL:
+      append_index(str, state[1], false);
+      break;
    case STATE_NORMAL_SCALE:
+   case STATE_FOG_PARAMS_OPTIMIZED:
+   case STATE_POINT_SIZE_CLAMPED:
+   case STATE_PT_SCALE:
+   case STATE_PT_BIAS:
+   case STATE_FB_SIZE:
+   case STATE_FB_WPOS_Y_TRANSFORM:
+   case STATE_TCS_PATCH_VERTICES_IN:
+   case STATE_TES_PATCH_VERTICES_IN:
+   case STATE_ADVANCED_BLENDING_MODE:
+   case STATE_ALPHA_REF:
       break;
-   case STATE_INTERNAL:
-      append_token(str, state[1]);
-      if (state[1] == STATE_CURRENT_ATTRIB ||
-          state[1] == STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED)
-         append_index(str, state[2], false);
-       break;
    case STATE_NOT_STATE_VAR:
       append(str, "not_state");
       break;
diff --git a/src/mesa/program/prog_statevars.h b/src/mesa/program/prog_statevars.h
index 4e45382d019..a490c8679ae 100644
--- a/src/mesa/program/prog_statevars.h
+++ b/src/mesa/program/prog_statevars.h
@@ -132,10 +132,10 @@ typedef enum gl_state_index_ {
    STATE_ENV,
    STATE_LOCAL,
 
-   STATE_INTERNAL,		/* Mesa additions */
    STATE_CURRENT_ATTRIB,        /* ctx->Current vertex attrib value */
    STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED,        /* ctx->Current vertex attrib value after passthrough vertex processing */
    STATE_NORMAL_SCALE,
+   STATE_NORMAL_SCALE_EYESPACE,
    STATE_FOG_PARAMS_OPTIMIZED,  /* for faster fog calc */
    STATE_POINT_SIZE_CLAMPED,    /* includes implementation dependent size clamp */
    STATE_LIGHT_SPOT_DIR_NORMALIZED,   /* pre-normalized spot dir */
@@ -156,6 +156,7 @@ typedef enum gl_state_index_ {
    STATE_ADVANCED_BLENDING_MODE,
    STATE_ALPHA_REF,        /* alpha-test reference value */
    STATE_CLIP_INTERNAL,    /* similar to STATE_CLIPPLANE, but in clip-space */
+
    STATE_INTERNAL_DRIVER	/* first available state index for drivers (must be last) */
 } gl_state_index;
 
diff --git a/src/mesa/program/programopt.c b/src/mesa/program/programopt.c
index 71d53eea65f..1429bd4f869 100644
--- a/src/mesa/program/programopt.c
+++ b/src/mesa/program/programopt.c
@@ -248,7 +248,7 @@ _mesa_append_fog_code(struct gl_context *ctx, struct gl_program *fprog,
                       GLenum fog_mode, GLboolean saturate)
 {
    static const gl_state_index16 fogPStateOpt[STATE_LENGTH]
-      = { STATE_INTERNAL, STATE_FOG_PARAMS_OPTIMIZED, 0, 0 };
+      = { STATE_FOG_PARAMS_OPTIMIZED, 0, 0 };
    static const gl_state_index16 fogColorState[STATE_LENGTH]
       = { STATE_FOG_COLOR, 0, 0, 0 };
    struct prog_instruction *newInst, *inst;
diff --git a/src/mesa/state_tracker/st_atifs_to_nir.c b/src/mesa/state_tracker/st_atifs_to_nir.c
index df33b1dc041..34431e6a58b 100644
--- a/src/mesa/state_tracker/st_atifs_to_nir.c
+++ b/src/mesa/state_tracker/st_atifs_to_nir.c
@@ -540,7 +540,7 @@ st_init_atifs_prog(struct gl_context *ctx, struct gl_program *prog)
    unsigned pass, i, r, optype, arg;
 
    static const gl_state_index16 fog_params_state[STATE_LENGTH] =
-      {STATE_INTERNAL, STATE_FOG_PARAMS_OPTIMIZED, 0, 0};
+      {STATE_FOG_PARAMS_OPTIMIZED, 0, 0};
    static const gl_state_index16 fog_color[STATE_LENGTH] =
       {STATE_FOG_COLOR, 0, 0, 0};
 
diff --git a/src/mesa/state_tracker/st_glsl_to_nir.cpp b/src/mesa/state_tracker/st_glsl_to_nir.cpp
index 82dede29167..ee31428a3d3 100644
--- a/src/mesa/state_tracker/st_glsl_to_nir.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_nir.cpp
@@ -668,7 +668,7 @@ st_nir_lower_wpos_ytransform(struct nir_shader *nir,
       return;
 
    static const gl_state_index16 wposTransformState[STATE_LENGTH] = {
-      STATE_INTERNAL, STATE_FB_WPOS_Y_TRANSFORM
+      STATE_FB_WPOS_Y_TRANSFORM
    };
    nir_lower_wpos_ytransform_options wpos_options = { { 0 } };
 
@@ -693,7 +693,7 @@ st_nir_lower_wpos_ytransform(struct nir_shader *nir,
    }
 
    static const gl_state_index16 pntcTransformState[STATE_LENGTH] = {
-      STATE_INTERNAL, STATE_FB_PNTC_Y_TRANSFORM
+      STATE_FB_PNTC_Y_TRANSFORM
    };
 
    if (nir_lower_pntc_ytransform(nir, &pntcTransformState)) {
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 9e9289b41cb..77534b14736 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -1623,7 +1623,7 @@ glsl_to_tgsi_visitor::visit_expression(ir_expression* ir, st_src_reg *op)
        * It is then multiplied with the source operand of DDY.
        */
       static const gl_state_index16 transform_y_state[STATE_LENGTH]
-         = { STATE_INTERNAL, STATE_FB_WPOS_Y_TRANSFORM };
+         = { STATE_FB_WPOS_Y_TRANSFORM };
 
       unsigned transform_y_index =
          _mesa_add_state_reference(this->prog->Parameters,
@@ -2235,7 +2235,7 @@ glsl_to_tgsi_visitor::visit_expression(ir_expression* ir, st_src_reg *op)
    case ir_binop_interpolate_at_offset: {
       /* The y coordinate needs to be flipped for the default fb */
       static const gl_state_index16 transform_y_state[STATE_LENGTH]
-         = { STATE_INTERNAL, STATE_FB_WPOS_Y_TRANSFORM };
+         = { STATE_FB_WPOS_Y_TRANSFORM };
 
       unsigned transform_y_index =
          _mesa_add_state_reference(this->prog->Parameters,
@@ -7234,7 +7234,7 @@ get_mesa_program_tgsi(struct gl_context *ctx,
         prog->info.system_values_read & (1ull << SYSTEM_VALUE_FRAG_COORD) ||
         prog->info.system_values_read & (1ull << SYSTEM_VALUE_SAMPLE_POS))) {
       static const gl_state_index16 wposTransformState[STATE_LENGTH] = {
-         STATE_INTERNAL, STATE_FB_WPOS_Y_TRANSFORM
+         STATE_FB_WPOS_Y_TRANSFORM
       };
 
       v->wpos_transform_const = _mesa_add_state_reference(prog->Parameters,
diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c
index e85d0f58a61..2a8cf247378 100644
--- a/src/mesa/state_tracker/st_program.c
+++ b/src/mesa/state_tracker/st_program.c
@@ -716,9 +716,8 @@ lower_ucp(struct st_context *st,
             clipplane_state[i][0] = STATE_CLIPPLANE;
             clipplane_state[i][1] = i;
          } else {
-            clipplane_state[i][0] = STATE_INTERNAL;
-            clipplane_state[i][1] = STATE_CLIP_INTERNAL;
-            clipplane_state[i][2] = i;
+            clipplane_state[i][0] = STATE_CLIP_INTERNAL;
+            clipplane_state[i][1] = i;
          }
          _mesa_add_state_reference(params, clipplane_state[i]);
       }
@@ -750,7 +749,7 @@ st_create_vp_variant(struct st_context *st,
    struct pipe_shader_state state = {0};
 
    static const gl_state_index16 point_size_state[STATE_LENGTH] =
-      { STATE_INTERNAL, STATE_POINT_SIZE_CLAMPED, 0 };
+      { STATE_POINT_SIZE_CLAMPED, 0 };
    struct gl_program_parameter_list *params = stvp->Base.Parameters;
 
    vpv->key = *key;
@@ -1229,13 +1228,13 @@ st_create_fp_variant(struct st_context *st,
    struct pipe_shader_state state = {0};
    struct gl_program_parameter_list *params = stfp->Base.Parameters;
    static const gl_state_index16 texcoord_state[STATE_LENGTH] =
-      { STATE_INTERNAL, STATE_CURRENT_ATTRIB, VERT_ATTRIB_TEX0 };
+      { STATE_CURRENT_ATTRIB, VERT_ATTRIB_TEX0 };
    static const gl_state_index16 scale_state[STATE_LENGTH] =
-      { STATE_INTERNAL, STATE_PT_SCALE };
+      { STATE_PT_SCALE };
    static const gl_state_index16 bias_state[STATE_LENGTH] =
-      { STATE_INTERNAL, STATE_PT_BIAS };
+      { STATE_PT_BIAS };
    static const gl_state_index16 alpha_ref_state[STATE_LENGTH] =
-      { STATE_INTERNAL, STATE_ALPHA_REF };
+      { STATE_ALPHA_REF };
 
    if (!variant)
       return NULL;
@@ -1748,7 +1747,7 @@ st_get_common_variant(struct st_context *st,
 
             if (key->lower_point_size) {
                static const gl_state_index16 point_size_state[STATE_LENGTH] =
-                  { STATE_INTERNAL, STATE_POINT_SIZE_CLAMPED, 0 };
+                  { STATE_POINT_SIZE_CLAMPED, 0 };
                _mesa_add_state_reference(params, point_size_state);
                NIR_PASS_V(state.ir.nir, nir_lower_point_size_mov,
                           point_size_state);



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