mesa: Move glQueryMatrixxOES() implementation to core mesa

1 files changed, 0 insertions, 199 deletions

diff --git a/src/mesa/es/main/es_query_matrix.c b/src/mesa/es/main/es_query_matrix.c
deleted file mode 100644
index 82b6fe7ab9..0000000000
--- a/src/mesa/es/main/es_query_matrix.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- **************************************************************************/
-
-
-/**
- * Code to implement GL_OES_query_matrix.  See the spec at:
- * http://www.khronos.org/registry/gles/extensions/OES/OES_query_matrix.txt
- */
-
-
-#include <stdlib.h>
-#include <math.h>
-#include "GLES/gl.h"
-#include "GLES/glext.h"
-
-
-/**
- * This is from the GL_OES_query_matrix extension specification:
- *
- *  GLbitfield glQueryMatrixxOES( GLfixed mantissa[16],
- *                                GLint   exponent[16] )
- *  mantissa[16] contains the contents of the current matrix in GLfixed
- *  format.  exponent[16] contains the unbiased exponents applied to the
- *  matrix components, so that the internal representation of component i
- *  is close to mantissa[i] * 2^exponent[i].  The function returns a status
- *  word which is zero if all the components are valid. If
- *  status & (1<<i) != 0, the component i is invalid (e.g., NaN, Inf).
- *  The implementations are not required to keep track of overflows.  In
- *  that case, the invalid bits are never set.
- */
-
-#define INT_TO_FIXED(x) ((GLfixed) ((x) << 16))
-#define FLOAT_TO_FIXED(x) ((GLfixed) ((x) * 65536.0))
-
-#if defined(WIN32) || defined(_WIN32_WCE)
-/* Oddly, the fpclassify() function doesn't exist in such a form
- * on Windows.  This is an implementation using slightly different
- * lower-level Windows functions.
- */
-#include <float.h>
-
-enum {FP_NAN, FP_INFINITE, FP_ZERO, FP_SUBNORMAL, FP_NORMAL}
-fpclassify(double x)
-{
-    switch(_fpclass(x)) {
-        case _FPCLASS_SNAN: /* signaling NaN */
-        case _FPCLASS_QNAN: /* quiet NaN */
-            return FP_NAN;
-        case _FPCLASS_NINF: /* negative infinity */
-        case _FPCLASS_PINF: /* positive infinity */
-            return FP_INFINITE;
-        case _FPCLASS_NN:   /* negative normal */
-        case _FPCLASS_PN:   /* positive normal */
-            return FP_NORMAL;
-        case _FPCLASS_ND:   /* negative denormalized */
-        case _FPCLASS_PD:   /* positive denormalized */
-            return FP_SUBNORMAL;
-        case _FPCLASS_NZ:   /* negative zero */
-        case _FPCLASS_PZ:   /* positive zero */
-            return FP_ZERO;
-        default:
-            /* Should never get here; but if we do, this will guarantee
-             * that the pattern is not treated like a number.
-             */
-            return FP_NAN;
-    }
-}
-#endif
-
-extern GLbitfield GL_APIENTRY _es_QueryMatrixxOES(GLfixed mantissa[16], GLint exponent[16]);
-
-/* The Mesa functions we'll need */
-extern void GL_APIENTRY _mesa_GetIntegerv(GLenum pname, GLint *params);
-extern void GL_APIENTRY _mesa_GetFloatv(GLenum pname, GLfloat *params);
-
-GLbitfield GL_APIENTRY _es_QueryMatrixxOES(GLfixed mantissa[16], GLint exponent[16])
-{
-    GLfloat matrix[16];
-    GLint tmp;
-    GLenum currentMode = GL_FALSE;
-    GLenum desiredMatrix = GL_FALSE;
-    /* The bitfield returns 1 for each component that is invalid (i.e.
-     * NaN or Inf).  In case of error, everything is invalid.
-     */
-    GLbitfield rv;
-    register unsigned int i;
-    unsigned int bit;
-
-    /* This data structure defines the mapping between the current matrix
-     * mode and the desired matrix identifier.
-     */
-    static struct {
-        GLenum currentMode;
-        GLenum desiredMatrix;
-    } modes[] = {
-        {GL_MODELVIEW, GL_MODELVIEW_MATRIX},
-        {GL_PROJECTION, GL_PROJECTION_MATRIX},
-        {GL_TEXTURE, GL_TEXTURE_MATRIX},
-#if 0
-        /* this doesn't exist in GLES */
-        {GL_COLOR, GL_COLOR_MATRIX},
-#endif
-    };
-
-    /* Call Mesa to get the current matrix in floating-point form.  First,
-     * we have to figure out what the current matrix mode is.
-     */
-    _mesa_GetIntegerv(GL_MATRIX_MODE, &tmp);
-    currentMode = (GLenum) tmp;
-
-    /* The mode is either GL_FALSE, if for some reason we failed to query
-     * the mode, or a given mode from the above table.  Search for the
-     * returned mode to get the desired matrix; if we don't find it,
-     * we can return immediately, as _mesa_GetInteger() will have
-     * logged the necessary error already.
-     */
-    for (i = 0; i < sizeof(modes)/sizeof(modes[0]); i++) {
-        if (modes[i].currentMode == currentMode) {
-            desiredMatrix = modes[i].desiredMatrix;
-            break;
-        }
-    }
-    if (desiredMatrix == GL_FALSE) {
-        /* Early error means all values are invalid. */
-        return 0xffff;
-    }
-
-    /* Now pull the matrix itself. */
-    _mesa_GetFloatv(desiredMatrix, matrix);
-
-    rv = 0;
-    for (i = 0, bit = 1; i < 16; i++, bit<<=1) {
-        float normalizedFraction;
-        int exp;
-
-        switch (fpclassify(matrix[i])) {
-            /* A "subnormal" or denormalized number is too small to be
-             * represented in normal format; but despite that it's a
-             * valid floating point number.  FP_ZERO and FP_NORMAL
-             * are both valid as well.  We should be fine treating
-             * these three cases as legitimate floating-point numbers.
-             */
-            case FP_SUBNORMAL:
-            case FP_NORMAL:
-            case FP_ZERO:
-                normalizedFraction = (GLfloat)frexp(matrix[i], &exp);
-                mantissa[i] = FLOAT_TO_FIXED(normalizedFraction);
-                exponent[i] = (GLint) exp;
-                break;
-
-            /* If the entry is not-a-number or an infinity, then the
-             * matrix component is invalid.  The invalid flag for
-             * the component is already set; might as well set the
-             * other return values to known values.  We'll set
-             * distinct values so that a savvy end user could determine
-             * whether the matrix component was a NaN or an infinity,
-             * but this is more useful for debugging than anything else
-             * since the standard doesn't specify any such magic
-             * values to return.
-             */
-            case FP_NAN:
-                mantissa[i] = INT_TO_FIXED(0);
-                exponent[i] = (GLint) 0;
-                rv |= bit;
-                break;
-
-            case FP_INFINITE:
-                /* Return +/- 1 based on whether it's a positive or
-                 * negative infinity.
-                 */
-                if (matrix[i] > 0) {
-                    mantissa[i] = INT_TO_FIXED(1);
-                }
-                else {
-                    mantissa[i] = -INT_TO_FIXED(1);
-                }
-                exponent[i] = (GLint) 0;
-                rv |= bit;
-                break;
-
-            /* We should never get here; but here's a catching case
-             * in case fpclassify() is returnings something unexpected.
-             */
-            default:
-                mantissa[i] = INT_TO_FIXED(2);
-                exponent[i] = (GLint) 0;
-                rv |= bit;
-                break;
-        }
-
-    } /* for each component */
-
-    /* All done */
-    return rv;
-}