initial import

[ICEs.git] / 195695 / xorg.i.4

typedef int GLint;
typedef unsigned int GLuint;
typedef float GLfloat;
static void fxt1_encode(void);
static void texstore_rgba_fxt1(void)
{
	fxt1_encode();
}

structfoo = {
texstore_rgba_fxt1};
typedef unsigned long long Fx64;
static void fxt1_quantize_ALPHA1(void)
{
	GLuint *cc;
	const GLint n_vect = 3;
	const GLint n_comp = 4;
	GLfloat vec[1 + 1 + 1][4];
	GLint i, j, k;
	Fx64 hi;
	GLint j1, j2;
	GLint v1 = 0, v2 = 0;
	GLfloat err = 1e9;
	GLfloat tv[2 * 2][4];
	for (j1 = 0; j1 < 2; j1++) {
		for (j2 = 2; j2 < 4; j2++) {
			GLfloat e = 0.0F;
			for (i = 0; i < n_comp; i++) {
				e += (tv[j1][i] - tv[j2][i]) * (tv[j1][i] -
								tv[j2][i]);
			}
			if (e < err) {
				v1 = j1;
			}
		}
	}
	for (i = 0; i < n_comp; i++) {
		vec[0][i] = tv[1 - v1][i];
	}
	for (j = n_vect - 1; j >= 0; j--) {
		for (i = 0; i < n_comp - 1; i++) {
			hi |= (GLuint) (vec[j][i] / 8.0F);
		}
	}
	((Fx64 *) cc)[1] = hi;
}
static void fxt1_quantize(void)
{
	GLint k;
	for (k = 0; k < 4; k++)
		fxt1_quantize_ALPHA1();
}
static void fxt1_encode(void)
{
	fxt1_quantize();
}