switch to tinyobj and nanovg from assimp and cairo

1 files changed, 0 insertions, 420 deletions

diff --git a/libs/cairo-1.16.0/test/pdiff/pdiff.c b/libs/cairo-1.16.0/test/pdiff/pdiff.c
deleted file mode 100644
index eb5f156..0000000
--- a/libs/cairo-1.16.0/test/pdiff/pdiff.c
+++ /dev/null
@@ -1,420 +0,0 @@
-/*
-  Metric
-  Copyright (C) 2006 Yangli Hector Yee
-
-  This program is free software; you can redistribute it and/or modify it under the terms of the
-  GNU General Public License as published by the Free Software Foundation; either version 2 of the License,
-  or (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
-  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with this program;
-  if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
-*/
-
-#define _GNU_SOURCE
-
-#if HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "lpyramid.h"
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#if   HAVE_STDINT_H
-# include <stdint.h>
-#elif HAVE_INTTYPES_H
-# include <inttypes.h>
-#elif HAVE_SYS_INT_TYPES_H
-# include <sys/int_types.h>
-#elif defined(_MSC_VER)
-  typedef __int8 int8_t;
-  typedef unsigned __int8 uint8_t;
-  typedef __int16 int16_t;
-  typedef unsigned __int16 uint16_t;
-  typedef __int32 int32_t;
-  typedef unsigned __int32 uint32_t;
-  typedef __int64 int64_t;
-  typedef unsigned __int64 uint64_t;
-# ifndef HAVE_UINT64_T
-#  define HAVE_UINT64_T 1
-# endif
-# ifndef INT16_MIN
-#  define INT16_MIN	(-32767-1)
-# endif
-# ifndef INT16_MAX
-#  define INT16_MAX	(32767)
-# endif
-# ifndef UINT16_MAX
-#  define UINT16_MAX	(65535)
-# endif
-#else
-#error Cannot find definitions for fixed-width integral types (uint8_t, uint32_t, etc.)
-#endif
-
-#include "pdiff.h"
-
-#ifndef M_PI
-#define M_PI 3.14159265f
-#endif
-
-#ifndef __USE_ISOC99
-#define expf	exp
-#define powf	pow
-#define fabsf	fabs
-#define sqrtf	sqrt
-#define log10f	log10
-#endif
-
-/*
- * Given the adaptation luminance, this function returns the
- * threshold of visibility in cd per m^2
- * TVI means Threshold vs Intensity function
- * This version comes from Ward Larson Siggraph 1997
- */
-static float
-tvi (float adaptation_luminance)
-{
-    /* returns the threshold luminance given the adaptation luminance
-       units are candelas per meter squared
-    */
-    float log_a, r, result;
-    log_a = log10f(adaptation_luminance);
-
-    if (log_a < -3.94f) {
-	r = -2.86f;
-    } else if (log_a < -1.44f) {
-	r = powf(0.405f * log_a + 1.6f , 2.18f) - 2.86f;
-    } else if (log_a < -0.0184f) {
-	r = log_a - 0.395f;
-    } else if (log_a < 1.9f) {
-	r = powf(0.249f * log_a + 0.65f, 2.7f) - 0.72f;
-    } else {
-	r = log_a - 1.255f;
-    }
-
-    result = powf(10.0f , r);
-
-    return result;
-}
-
-/* computes the contrast sensitivity function (Barten SPIE 1989)
- * given the cycles per degree (cpd) and luminance (lum)
- */
-static float
-csf (float cpd, float lum)
-{
-    float a, b, result;
-
-    a = 440.0f * powf((1.0f + 0.7f / lum), -0.2f);
-    b = 0.3f * powf((1.0f + 100.0f / lum), 0.15f);
-
-    result = a * cpd * expf(-b * cpd) * sqrtf(1.0f + 0.06f * expf(b * cpd));
-
-    return result;
-}
-
-/*
- * Visual Masking Function
- * from Daly 1993
- */
-static float
-mask (float contrast)
-{
-    float a, b, result;
-    a = powf(392.498f * contrast,  0.7f);
-    b = powf(0.0153f * a, 4.0f);
-    result = powf(1.0f + b, 0.25f);
-
-    return result;
-}
-
-/* convert Adobe RGB (1998) with reference white D65 to XYZ */
-static void
-AdobeRGBToXYZ (float r, float g, float b, float *x, float *y, float *z)
-{
-    /* matrix is from http://www.brucelindbloom.com/ */
-    *x = r * 0.576700f + g * 0.185556f + b * 0.188212f;
-    *y = r * 0.297361f + g * 0.627355f + b * 0.0752847f;
-    *z = r * 0.0270328f + g * 0.0706879f + b * 0.991248f;
-}
-
-static void
-XYZToLAB (float x, float y, float z, float *L, float *A, float *B)
-{
-    static float xw = -1;
-    static float yw;
-    static float zw;
-    const float epsilon  = 216.0f / 24389.0f;
-    const float kappa = 24389.0f / 27.0f;
-    float f[3];
-    float r[3];
-    int i;
-
-    /* reference white */
-    if (xw < 0) {
-	AdobeRGBToXYZ(1, 1, 1, &xw, &yw, &zw);
-    }
-    r[0] = x / xw;
-    r[1] = y / yw;
-    r[2] = z / zw;
-    for (i = 0; i < 3; i++) {
-	if (r[i] > epsilon) {
-	    f[i] = powf(r[i], 1.0f / 3.0f);
-	} else {
-	    f[i] = (kappa * r[i] + 16.0f) / 116.0f;
-	}
-    }
-    *L = 116.0f * f[1] - 16.0f;
-    *A = 500.0f * (f[0] - f[1]);
-    *B = 200.0f * (f[1] - f[2]);
-}
-
-static uint32_t
-_get_pixel (const uint32_t *data, int i)
-{
-    return data[i];
-}
-
-static unsigned char
-_get_red (const uint32_t *data, int i)
-{
-    uint32_t pixel;
-    uint8_t alpha;
-
-    pixel = _get_pixel (data, i);
-    alpha = (pixel & 0xff000000) >> 24;
-    if (alpha == 0)
-	return 0;
-    else
-	return (((pixel & 0x00ff0000) >> 16) * 255 + alpha / 2) / alpha;
-}
-
-static unsigned char
-_get_green (const uint32_t *data, int i)
-{
-    uint32_t pixel;
-    uint8_t alpha;
-
-    pixel = _get_pixel (data, i);
-    alpha = (pixel & 0xff000000) >> 24;
-    if (alpha == 0)
-	return 0;
-    else
-	return (((pixel & 0x0000ff00) >> 8) * 255 + alpha / 2) / alpha;
-}
-
-static unsigned char
-_get_blue (const uint32_t *data, int i)
-{
-    uint32_t pixel;
-    uint8_t alpha;
-
-    pixel = _get_pixel (data, i);
-    alpha = (pixel & 0xff000000) >> 24;
-    if (alpha == 0)
-	return 0;
-    else
-	return (((pixel & 0x000000ff) >> 0) * 255 + alpha / 2) / alpha;
-}
-
-static void *
-xmalloc (size_t size)
-{
-    void *buf;
-
-    buf = malloc (size);
-    if (buf == NULL) {
-	fprintf (stderr, "Out of memory.\n");
-	exit (1);
-    }
-
-    return buf;
-}
-
-int
-pdiff_compare (cairo_surface_t *surface_a,
-	       cairo_surface_t *surface_b,
-	       double gamma,
-	       double luminance,
-	       double field_of_view)
-{
-    unsigned int dim = (cairo_image_surface_get_width (surface_a)
-			* cairo_image_surface_get_height (surface_a));
-    unsigned int i;
-
-    /* assuming colorspaces are in Adobe RGB (1998) convert to XYZ */
-    float *aX;
-    float *aY;
-    float *aZ;
-    float *bX;
-    float *bY;
-    float *bZ;
-    float *aLum;
-    float *bLum;
-
-    float *aA;
-    float *bA;
-    float *aB;
-    float *bB;
-
-    unsigned int x, y, w, h;
-
-    lpyramid_t *la, *lb;
-
-    float num_one_degree_pixels, pixels_per_degree, num_pixels;
-    unsigned int adaptation_level;
-
-    float cpd[MAX_PYR_LEVELS];
-    float F_freq[MAX_PYR_LEVELS - 2];
-    float csf_max;
-    const uint32_t *data_a, *data_b;
-
-    unsigned int pixels_failed;
-
-    w = cairo_image_surface_get_width (surface_a);
-    h = cairo_image_surface_get_height (surface_a);
-    if (w < 3 || h < 3) /* too small for the Laplacian convolution */
-	return -1;
-
-    aX = xmalloc (dim * sizeof (float));
-    aY = xmalloc (dim * sizeof (float));
-    aZ = xmalloc (dim * sizeof (float));
-    bX = xmalloc (dim * sizeof (float));
-    bY = xmalloc (dim * sizeof (float));
-    bZ = xmalloc (dim * sizeof (float));
-    aLum = xmalloc (dim * sizeof (float));
-    bLum = xmalloc (dim * sizeof (float));
-
-    aA = xmalloc (dim * sizeof (float));
-    bA = xmalloc (dim * sizeof (float));
-    aB = xmalloc (dim * sizeof (float));
-    bB = xmalloc (dim * sizeof (float));
-
-    data_a = (uint32_t *) cairo_image_surface_get_data (surface_a);
-    data_b = (uint32_t *) cairo_image_surface_get_data (surface_b);
-    for (y = 0; y < h; y++) {
-	for (x = 0; x < w; x++) {
-	    float r, g, b, l;
-	    i = x + y * w;
-	    r = powf(_get_red (data_a, i) / 255.0f, gamma);
-	    g = powf(_get_green (data_a, i) / 255.0f, gamma);
-	    b = powf(_get_blue (data_a, i) / 255.0f, gamma);
-
-	    AdobeRGBToXYZ(r,g,b,&aX[i],&aY[i],&aZ[i]);
-	    XYZToLAB(aX[i], aY[i], aZ[i], &l, &aA[i], &aB[i]);
-	    r = powf(_get_red (data_b, i) / 255.0f, gamma);
-	    g = powf(_get_green (data_b, i) / 255.0f, gamma);
-	    b = powf(_get_blue (data_b, i) / 255.0f, gamma);
-
-	    AdobeRGBToXYZ(r,g,b,&bX[i],&bY[i],&bZ[i]);
-	    XYZToLAB(bX[i], bY[i], bZ[i], &l, &bA[i], &bB[i]);
-	    aLum[i] = aY[i] * luminance;
-	    bLum[i] = bY[i] * luminance;
-	}
-    }
-
-    la = lpyramid_create (aLum, w, h);
-    lb = lpyramid_create (bLum, w, h);
-
-    num_one_degree_pixels = (float) (2 * tan(field_of_view * 0.5 * M_PI / 180) * 180 / M_PI);
-    pixels_per_degree = w / num_one_degree_pixels;
-
-    num_pixels = 1;
-    adaptation_level = 0;
-    for (i = 0; i < MAX_PYR_LEVELS; i++) {
-	adaptation_level = i;
-	if (num_pixels > num_one_degree_pixels) break;
-	num_pixels *= 2;
-    }
-
-    cpd[0] = 0.5f * pixels_per_degree;
-    for (i = 1; i < MAX_PYR_LEVELS; i++) cpd[i] = 0.5f * cpd[i - 1];
-    csf_max = csf(3.248f, 100.0f);
-
-    for (i = 0; i < MAX_PYR_LEVELS - 2; i++) F_freq[i] = csf_max / csf( cpd[i], 100.0f);
-
-    pixels_failed = 0;
-    for (y = 0; y < h; y++) {
-	for (x = 0; x < w; x++) {
-	    int index = x + y * w;
-	    float contrast[MAX_PYR_LEVELS - 2];
-	    float F_mask[MAX_PYR_LEVELS - 2];
-	    float factor;
-	    float delta;
-	    float adapt;
-	    bool pass;
-	    float sum_contrast = 0;
-	    for (i = 0; i < MAX_PYR_LEVELS - 2; i++) {
-		float n1 = fabsf(lpyramid_get_value (la,x,y,i) - lpyramid_get_value (la,x,y,i + 1));
-		float n2 = fabsf(lpyramid_get_value (lb,x,y,i) - lpyramid_get_value (lb,x,y,i + 1));
-		float numerator = (n1 > n2) ? n1 : n2;
-		float d1 = fabsf(lpyramid_get_value(la,x,y,i+2));
-		float d2 = fabsf(lpyramid_get_value(lb,x,y,i+2));
-		float denominator = (d1 > d2) ? d1 : d2;
-		if (denominator < 1e-5f) denominator = 1e-5f;
-		contrast[i] = numerator / denominator;
-		sum_contrast += contrast[i];
-	    }
-	    if (sum_contrast < 1e-5) sum_contrast = 1e-5f;
-	    adapt = lpyramid_get_value(la,x,y,adaptation_level) + lpyramid_get_value(lb,x,y,adaptation_level);
-	    adapt *= 0.5f;
-	    if (adapt < 1e-5) adapt = 1e-5f;
-	    for (i = 0; i < MAX_PYR_LEVELS - 2; i++) {
-		F_mask[i] = mask(contrast[i] * csf(cpd[i], adapt));
-	    }
-	    factor = 0;
-	    for (i = 0; i < MAX_PYR_LEVELS - 2; i++) {
-		factor += contrast[i] * F_freq[i] * F_mask[i] / sum_contrast;
-	    }
-	    if (factor < 1) factor = 1;
-	    if (factor > 10) factor = 10;
-	    delta = fabsf(lpyramid_get_value(la,x,y,0) - lpyramid_get_value(lb,x,y,0));
-	    pass = true;
-	    /* pure luminance test */
-	    if (delta > factor * tvi(adapt)) {
-		pass = false;
-	    } else {
-		/* CIE delta E test with modifications */
-		float color_scale = 1.0f;
-		float da = aA[index] - bA[index];
-		float db = aB[index] - bB[index];
-		float delta_e;
-		/* ramp down the color test in scotopic regions */
-		if (adapt < 10.0f) {
-		    color_scale = 1.0f - (10.0f - color_scale) / 10.0f;
-		    color_scale = color_scale * color_scale;
-		}
-		da = da * da;
-		db = db * db;
-		delta_e = (da + db) * color_scale;
-		if (delta_e > factor) {
-		    pass = false;
-		}
-	    }
-	    if (!pass)
-		pixels_failed++;
-	}
-    }
-
-    free (aX);
-    free (aY);
-    free (aZ);
-    free (bX);
-    free (bY);
-    free (bZ);
-    free (aLum);
-    free (bLum);
-    lpyramid_destroy (la);
-    lpyramid_destroy (lb);
-    free (aA);
-    free (bA);
-    free (aB);
-    free (bB);
-
-    return pixels_failed;
-}