From 6ab9c0476992752ff3ac0c80b6952075a4679aeb Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Tue, 9 Oct 2012 15:34:49 -0700
Subject: mesa: Remove support for NV_vertex_program's tracked matrices.

Reviewed-by: Brian Paul <brianp@vmware.com>
---
 src/mesa/program/prog_statevars.c | 91 ---------------------------------------
 src/mesa/program/prog_statevars.h |  3 --
 src/mesa/program/program.c        |  6 ---
 3 files changed, 100 deletions(-)

(limited to 'src/mesa/program')

diff --git a/src/mesa/program/prog_statevars.c b/src/mesa/program/prog_statevars.c
index f9c6677b19b..5a350798c3d 100644
--- a/src/mesa/program/prog_statevars.c
+++ b/src/mesa/program/prog_statevars.c
@@ -1074,94 +1074,3 @@ _mesa_load_state_parameters(struct gl_context *ctx,
       }
    }
 }
-
-
-/**
- * Copy the 16 elements of a matrix into four consecutive program
- * registers starting at 'pos'.
- */
-static void
-load_matrix(GLfloat registers[][4], GLuint pos, const GLfloat mat[16])
-{
-   GLuint i;
-   for (i = 0; i < 4; i++) {
-      registers[pos + i][0] = mat[0 + i];
-      registers[pos + i][1] = mat[4 + i];
-      registers[pos + i][2] = mat[8 + i];
-      registers[pos + i][3] = mat[12 + i];
-   }
-}
-
-
-/**
- * As above, but transpose the matrix.
- */
-static void
-load_transpose_matrix(GLfloat registers[][4], GLuint pos,
-                      const GLfloat mat[16])
-{
-   memcpy(registers[pos], mat, 16 * sizeof(GLfloat));
-}
-
-
-/**
- * Load current vertex program's parameter registers with tracked
- * matrices (if NV program).  This only needs to be done per
- * glBegin/glEnd, not per-vertex.
- */
-void
-_mesa_load_tracked_matrices(struct gl_context *ctx)
-{
-   GLuint i;
-
-   for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS / 4; i++) {
-      /* point 'mat' at source matrix */
-      GLmatrix *mat;
-      if (ctx->VertexProgram.TrackMatrix[i] == GL_MODELVIEW) {
-         mat = ctx->ModelviewMatrixStack.Top;
-      }
-      else if (ctx->VertexProgram.TrackMatrix[i] == GL_PROJECTION) {
-         mat = ctx->ProjectionMatrixStack.Top;
-      }
-      else if (ctx->VertexProgram.TrackMatrix[i] == GL_TEXTURE) {
-         GLuint unit = MIN2(ctx->Texture.CurrentUnit,
-                            Elements(ctx->TextureMatrixStack) - 1);
-         mat = ctx->TextureMatrixStack[unit].Top;
-      }
-      else if (ctx->VertexProgram.TrackMatrix[i]==GL_MODELVIEW_PROJECTION_NV) {
-         /* XXX verify the combined matrix is up to date */
-         mat = &ctx->_ModelProjectMatrix;
-      }
-      else if (ctx->VertexProgram.TrackMatrix[i] >= GL_MATRIX0_NV &&
-               ctx->VertexProgram.TrackMatrix[i] <= GL_MATRIX7_NV) {
-         GLuint n = ctx->VertexProgram.TrackMatrix[i] - GL_MATRIX0_NV;
-         ASSERT(n < Elements(ctx->ProgramMatrixStack));
-         mat = ctx->ProgramMatrixStack[n].Top;
-      }
-      else {
-         /* no matrix is tracked, but we leave the register values as-is */
-         assert(ctx->VertexProgram.TrackMatrix[i] == GL_NONE);
-         continue;
-      }
-
-      /* load the matrix values into sequential registers */
-      if (ctx->VertexProgram.TrackMatrixTransform[i] == GL_IDENTITY_NV) {
-         load_matrix(ctx->VertexProgram.Parameters, i*4, mat->m);
-      }
-      else if (ctx->VertexProgram.TrackMatrixTransform[i] == GL_INVERSE_NV) {
-         _math_matrix_analyse(mat); /* update the inverse */
-         ASSERT(!_math_matrix_is_dirty(mat));
-         load_matrix(ctx->VertexProgram.Parameters, i*4, mat->inv);
-      }
-      else if (ctx->VertexProgram.TrackMatrixTransform[i] == GL_TRANSPOSE_NV) {
-         load_transpose_matrix(ctx->VertexProgram.Parameters, i*4, mat->m);
-      }
-      else {
-         assert(ctx->VertexProgram.TrackMatrixTransform[i]
-                == GL_INVERSE_TRANSPOSE_NV);
-         _math_matrix_analyse(mat); /* update the inverse */
-         ASSERT(!_math_matrix_is_dirty(mat));
-         load_transpose_matrix(ctx->VertexProgram.Parameters, i*4, mat->inv);
-      }
-   }
-}
diff --git a/src/mesa/program/prog_statevars.h b/src/mesa/program/prog_statevars.h
index efd0e030cb3..af2c89792d7 100644
--- a/src/mesa/program/prog_statevars.h
+++ b/src/mesa/program/prog_statevars.h
@@ -146,9 +146,6 @@ extern char *
 _mesa_program_state_string(const gl_state_index state[STATE_LENGTH]);
 
 
-extern void
-_mesa_load_tracked_matrices(struct gl_context *ctx);
-
 
 #ifdef __cplusplus
 }
diff --git a/src/mesa/program/program.c b/src/mesa/program/program.c
index 30f83772f3a..6e767b6ef5c 100644
--- a/src/mesa/program/program.c
+++ b/src/mesa/program/program.c
@@ -52,8 +52,6 @@ struct gl_program _mesa_DummyProgram;
 void
 _mesa_init_program(struct gl_context *ctx)
 {
-   GLuint i;
-
    /*
     * If this assertion fails, we need to increase the field
     * size for register indexes (see INST_INDEX_BITS).
@@ -90,10 +88,6 @@ _mesa_init_program(struct gl_context *ctx)
    _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current,
                             ctx->Shared->DefaultVertexProgram);
    assert(ctx->VertexProgram.Current);
-   for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS / 4; i++) {
-      ctx->VertexProgram.TrackMatrix[i] = GL_NONE;
-      ctx->VertexProgram.TrackMatrixTransform[i] = GL_IDENTITY_NV;
-   }
    ctx->VertexProgram.Cache = _mesa_new_program_cache();
 
    ctx->FragmentProgram.Enabled = GL_FALSE;
-- 
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