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Unified Diff: third_party/qcms/chain.c

Issue 9910003: Revert 129510 - Adding qcms to use for handling ICC tagged images. This will be used by chromium we… (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 8 years, 9 months ago
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Index: third_party/qcms/chain.c
===================================================================
--- third_party/qcms/chain.c (revision 129548)
+++ third_party/qcms/chain.c (working copy)
@@ -1,989 +0,0 @@
-/* vim: set ts=8 sw=8 noexpandtab: */
-// qcms
-// Copyright (C) 2009 Mozilla Corporation
-// Copyright (C) 1998-2007 Marti Maria
-//
-// Permission is hereby granted, free of charge, to any person obtaining
-// a copy of this software and associated documentation files (the "Software"),
-// to deal in the Software without restriction, including without limitation
-// the rights to use, copy, modify, merge, publish, distribute, sublicense,
-// and/or sell copies of the Software, and to permit persons to whom the Software
-// is furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
-// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-#include <stdlib.h>
-#include <math.h>
-#include <assert.h>
-#include <string.h> //memcpy
-#include "qcmsint.h"
-#include "transform_util.h"
-#include "matrix.h"
-
-static struct matrix build_lut_matrix(struct lutType *lut)
-{
- struct matrix result;
- if (lut) {
- result.m[0][0] = s15Fixed16Number_to_float(lut->e00);
- result.m[0][1] = s15Fixed16Number_to_float(lut->e01);
- result.m[0][2] = s15Fixed16Number_to_float(lut->e02);
- result.m[1][0] = s15Fixed16Number_to_float(lut->e10);
- result.m[1][1] = s15Fixed16Number_to_float(lut->e11);
- result.m[1][2] = s15Fixed16Number_to_float(lut->e12);
- result.m[2][0] = s15Fixed16Number_to_float(lut->e20);
- result.m[2][1] = s15Fixed16Number_to_float(lut->e21);
- result.m[2][2] = s15Fixed16Number_to_float(lut->e22);
- result.invalid = false;
- } else {
- memset(&result, 0, sizeof(struct matrix));
- result.invalid = true;
- }
- return result;
-}
-
-static struct matrix build_mAB_matrix(struct lutmABType *lut)
-{
- struct matrix result;
- if (lut) {
- result.m[0][0] = s15Fixed16Number_to_float(lut->e00);
- result.m[0][1] = s15Fixed16Number_to_float(lut->e01);
- result.m[0][2] = s15Fixed16Number_to_float(lut->e02);
- result.m[1][0] = s15Fixed16Number_to_float(lut->e10);
- result.m[1][1] = s15Fixed16Number_to_float(lut->e11);
- result.m[1][2] = s15Fixed16Number_to_float(lut->e12);
- result.m[2][0] = s15Fixed16Number_to_float(lut->e20);
- result.m[2][1] = s15Fixed16Number_to_float(lut->e21);
- result.m[2][2] = s15Fixed16Number_to_float(lut->e22);
- result.invalid = false;
- } else {
- memset(&result, 0, sizeof(struct matrix));
- result.invalid = true;
- }
- return result;
-}
-
-//Based on lcms cmsLab2XYZ
-#define f(t) (t <= (24.0f/116.0f)*(24.0f/116.0f)*(24.0f/116.0f)) ? ((841.0/108.0) * t + (16.0/116.0)) : pow(t,1.0/3.0)
-#define f_1(t) (t <= (24.0f/116.0f)) ? ((108.0/841.0) * (t - (16.0/116.0))) : (t * t * t)
-static void qcms_transform_module_LAB_to_XYZ(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
-{
- size_t i;
- // lcms: D50 XYZ values
- float WhitePointX = 0.9642f;
- float WhitePointY = 1.0f;
- float WhitePointZ = 0.8249f;
- for (i = 0; i < length; i++) {
- float device_L = *src++ * 100.0f;
- float device_a = *src++ * 255.0f - 128.0f;
- float device_b = *src++ * 255.0f - 128.0f;
- float y = (device_L + 16.0f) / 116.0f;
-
- float X = f_1((y + 0.002f * device_a)) * WhitePointX;
- float Y = f_1(y) * WhitePointY;
- float Z = f_1((y - 0.005f * device_b)) * WhitePointZ;
- *dest++ = X / (1.0 + 32767.0/32768.0);
- *dest++ = Y / (1.0 + 32767.0/32768.0);
- *dest++ = Z / (1.0 + 32767.0/32768.0);
- }
-}
-
-//Based on lcms cmsXYZ2Lab
-static void qcms_transform_module_XYZ_to_LAB(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
-{
- size_t i;
- // lcms: D50 XYZ values
- float WhitePointX = 0.9642f;
- float WhitePointY = 1.0f;
- float WhitePointZ = 0.8249f;
- for (i = 0; i < length; i++) {
- float device_x = *src++ * (1.0 + 32767.0/32768.0) / WhitePointX;
- float device_y = *src++ * (1.0 + 32767.0/32768.0) / WhitePointY;
- float device_z = *src++ * (1.0 + 32767.0/32768.0) / WhitePointZ;
-
- float fx = f(device_x);
- float fy = f(device_y);
- float fz = f(device_z);
-
- float L = 116.0f*fy - 16.0f;
- float a = 500.0f*(fx - fy);
- float b = 200.0f*(fy - fz);
- *dest++ = L / 100.0f;
- *dest++ = (a+128.0f) / 255.0f;
- *dest++ = (b+128.0f) / 255.0f;
- }
-
-}
-
-static void qcms_transform_module_clut_only(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
-{
- size_t i;
- int xy_len = 1;
- int x_len = transform->grid_size;
- int len = x_len * x_len;
- float* r_table = transform->r_clut;
- float* g_table = transform->g_clut;
- float* b_table = transform->b_clut;
-
- for (i = 0; i < length; i++) {
- float linear_r = *src++;
- float linear_g = *src++;
- float linear_b = *src++;
-
- int x = floor(linear_r * (transform->grid_size-1));
- int y = floor(linear_g * (transform->grid_size-1));
- int z = floor(linear_b * (transform->grid_size-1));
- int x_n = ceil(linear_r * (transform->grid_size-1));
- int y_n = ceil(linear_g * (transform->grid_size-1));
- int z_n = ceil(linear_b * (transform->grid_size-1));
- float x_d = linear_r * (transform->grid_size-1) - x;
- float y_d = linear_g * (transform->grid_size-1) - y;
- float z_d = linear_b * (transform->grid_size-1) - z;
-
- float r_x1 = lerp(CLU(r_table,x,y,z), CLU(r_table,x_n,y,z), x_d);
- float r_x2 = lerp(CLU(r_table,x,y_n,z), CLU(r_table,x_n,y_n,z), x_d);
- float r_y1 = lerp(r_x1, r_x2, y_d);
- float r_x3 = lerp(CLU(r_table,x,y,z_n), CLU(r_table,x_n,y,z_n), x_d);
- float r_x4 = lerp(CLU(r_table,x,y_n,z_n), CLU(r_table,x_n,y_n,z_n), x_d);
- float r_y2 = lerp(r_x3, r_x4, y_d);
- float clut_r = lerp(r_y1, r_y2, z_d);
-
- float g_x1 = lerp(CLU(g_table,x,y,z), CLU(g_table,x_n,y,z), x_d);
- float g_x2 = lerp(CLU(g_table,x,y_n,z), CLU(g_table,x_n,y_n,z), x_d);
- float g_y1 = lerp(g_x1, g_x2, y_d);
- float g_x3 = lerp(CLU(g_table,x,y,z_n), CLU(g_table,x_n,y,z_n), x_d);
- float g_x4 = lerp(CLU(g_table,x,y_n,z_n), CLU(g_table,x_n,y_n,z_n), x_d);
- float g_y2 = lerp(g_x3, g_x4, y_d);
- float clut_g = lerp(g_y1, g_y2, z_d);
-
- float b_x1 = lerp(CLU(b_table,x,y,z), CLU(b_table,x_n,y,z), x_d);
- float b_x2 = lerp(CLU(b_table,x,y_n,z), CLU(b_table,x_n,y_n,z), x_d);
- float b_y1 = lerp(b_x1, b_x2, y_d);
- float b_x3 = lerp(CLU(b_table,x,y,z_n), CLU(b_table,x_n,y,z_n), x_d);
- float b_x4 = lerp(CLU(b_table,x,y_n,z_n), CLU(b_table,x_n,y_n,z_n), x_d);
- float b_y2 = lerp(b_x3, b_x4, y_d);
- float clut_b = lerp(b_y1, b_y2, z_d);
-
- *dest++ = clamp_float(clut_r);
- *dest++ = clamp_float(clut_g);
- *dest++ = clamp_float(clut_b);
- }
-}
-
-static void qcms_transform_module_clut(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
-{
- size_t i;
- int xy_len = 1;
- int x_len = transform->grid_size;
- int len = x_len * x_len;
- float* r_table = transform->r_clut;
- float* g_table = transform->g_clut;
- float* b_table = transform->b_clut;
- for (i = 0; i < length; i++) {
- float device_r = *src++;
- float device_g = *src++;
- float device_b = *src++;
- float linear_r = lut_interp_linear_float(device_r,
- transform->input_clut_table_r, transform->input_clut_table_length);
- float linear_g = lut_interp_linear_float(device_g,
- transform->input_clut_table_g, transform->input_clut_table_length);
- float linear_b = lut_interp_linear_float(device_b,
- transform->input_clut_table_b, transform->input_clut_table_length);
-
- int x = floor(linear_r * (transform->grid_size-1));
- int y = floor(linear_g * (transform->grid_size-1));
- int z = floor(linear_b * (transform->grid_size-1));
- int x_n = ceil(linear_r * (transform->grid_size-1));
- int y_n = ceil(linear_g * (transform->grid_size-1));
- int z_n = ceil(linear_b * (transform->grid_size-1));
- float x_d = linear_r * (transform->grid_size-1) - x;
- float y_d = linear_g * (transform->grid_size-1) - y;
- float z_d = linear_b * (transform->grid_size-1) - z;
-
- float r_x1 = lerp(CLU(r_table,x,y,z), CLU(r_table,x_n,y,z), x_d);
- float r_x2 = lerp(CLU(r_table,x,y_n,z), CLU(r_table,x_n,y_n,z), x_d);
- float r_y1 = lerp(r_x1, r_x2, y_d);
- float r_x3 = lerp(CLU(r_table,x,y,z_n), CLU(r_table,x_n,y,z_n), x_d);
- float r_x4 = lerp(CLU(r_table,x,y_n,z_n), CLU(r_table,x_n,y_n,z_n), x_d);
- float r_y2 = lerp(r_x3, r_x4, y_d);
- float clut_r = lerp(r_y1, r_y2, z_d);
-
- float g_x1 = lerp(CLU(g_table,x,y,z), CLU(g_table,x_n,y,z), x_d);
- float g_x2 = lerp(CLU(g_table,x,y_n,z), CLU(g_table,x_n,y_n,z), x_d);
- float g_y1 = lerp(g_x1, g_x2, y_d);
- float g_x3 = lerp(CLU(g_table,x,y,z_n), CLU(g_table,x_n,y,z_n), x_d);
- float g_x4 = lerp(CLU(g_table,x,y_n,z_n), CLU(g_table,x_n,y_n,z_n), x_d);
- float g_y2 = lerp(g_x3, g_x4, y_d);
- float clut_g = lerp(g_y1, g_y2, z_d);
-
- float b_x1 = lerp(CLU(b_table,x,y,z), CLU(b_table,x_n,y,z), x_d);
- float b_x2 = lerp(CLU(b_table,x,y_n,z), CLU(b_table,x_n,y_n,z), x_d);
- float b_y1 = lerp(b_x1, b_x2, y_d);
- float b_x3 = lerp(CLU(b_table,x,y,z_n), CLU(b_table,x_n,y,z_n), x_d);
- float b_x4 = lerp(CLU(b_table,x,y_n,z_n), CLU(b_table,x_n,y_n,z_n), x_d);
- float b_y2 = lerp(b_x3, b_x4, y_d);
- float clut_b = lerp(b_y1, b_y2, z_d);
-
- float pcs_r = lut_interp_linear_float(clut_r,
- transform->output_clut_table_r, transform->output_clut_table_length);
- float pcs_g = lut_interp_linear_float(clut_g,
- transform->output_clut_table_g, transform->output_clut_table_length);
- float pcs_b = lut_interp_linear_float(clut_b,
- transform->output_clut_table_b, transform->output_clut_table_length);
-
- *dest++ = clamp_float(pcs_r);
- *dest++ = clamp_float(pcs_g);
- *dest++ = clamp_float(pcs_b);
- }
-}
-
-/* NOT USED
-static void qcms_transform_module_tetra_clut(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
-{
- size_t i;
- int xy_len = 1;
- int x_len = transform->grid_size;
- int len = x_len * x_len;
- float* r_table = transform->r_clut;
- float* g_table = transform->g_clut;
- float* b_table = transform->b_clut;
- float c0_r, c1_r, c2_r, c3_r;
- float c0_g, c1_g, c2_g, c3_g;
- float c0_b, c1_b, c2_b, c3_b;
- float clut_r, clut_g, clut_b;
- float pcs_r, pcs_g, pcs_b;
- for (i = 0; i < length; i++) {
- float device_r = *src++;
- float device_g = *src++;
- float device_b = *src++;
- float linear_r = lut_interp_linear_float(device_r,
- transform->input_clut_table_r, transform->input_clut_table_length);
- float linear_g = lut_interp_linear_float(device_g,
- transform->input_clut_table_g, transform->input_clut_table_length);
- float linear_b = lut_interp_linear_float(device_b,
- transform->input_clut_table_b, transform->input_clut_table_length);
-
- int x = floor(linear_r * (transform->grid_size-1));
- int y = floor(linear_g * (transform->grid_size-1));
- int z = floor(linear_b * (transform->grid_size-1));
- int x_n = ceil(linear_r * (transform->grid_size-1));
- int y_n = ceil(linear_g * (transform->grid_size-1));
- int z_n = ceil(linear_b * (transform->grid_size-1));
- float rx = linear_r * (transform->grid_size-1) - x;
- float ry = linear_g * (transform->grid_size-1) - y;
- float rz = linear_b * (transform->grid_size-1) - z;
-
- c0_r = CLU(r_table, x, y, z);
- c0_g = CLU(g_table, x, y, z);
- c0_b = CLU(b_table, x, y, z);
- if( rx >= ry ) {
- if (ry >= rz) { //rx >= ry && ry >= rz
- c1_r = CLU(r_table, x_n, y, z) - c0_r;
- c2_r = CLU(r_table, x_n, y_n, z) - CLU(r_table, x_n, y, z);
- c3_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y_n, z);
- c1_g = CLU(g_table, x_n, y, z) - c0_g;
- c2_g = CLU(g_table, x_n, y_n, z) - CLU(g_table, x_n, y, z);
- c3_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y_n, z);
- c1_b = CLU(b_table, x_n, y, z) - c0_b;
- c2_b = CLU(b_table, x_n, y_n, z) - CLU(b_table, x_n, y, z);
- c3_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y_n, z);
- } else {
- if (rx >= rz) { //rx >= rz && rz >= ry
- c1_r = CLU(r_table, x_n, y, z) - c0_r;
- c2_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y, z_n);
- c3_r = CLU(r_table, x_n, y, z_n) - CLU(r_table, x_n, y, z);
- c1_g = CLU(g_table, x_n, y, z) - c0_g;
- c2_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y, z_n);
- c3_g = CLU(g_table, x_n, y, z_n) - CLU(g_table, x_n, y, z);
- c1_b = CLU(b_table, x_n, y, z) - c0_b;
- c2_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y, z_n);
- c3_b = CLU(b_table, x_n, y, z_n) - CLU(b_table, x_n, y, z);
- } else { //rz > rx && rx >= ry
- c1_r = CLU(r_table, x_n, y, z_n) - CLU(r_table, x, y, z_n);
- c2_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y, z_n);
- c3_r = CLU(r_table, x, y, z_n) - c0_r;
- c1_g = CLU(g_table, x_n, y, z_n) - CLU(g_table, x, y, z_n);
- c2_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y, z_n);
- c3_g = CLU(g_table, x, y, z_n) - c0_g;
- c1_b = CLU(b_table, x_n, y, z_n) - CLU(b_table, x, y, z_n);
- c2_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y, z_n);
- c3_b = CLU(b_table, x, y, z_n) - c0_b;
- }
- }
- } else {
- if (rx >= rz) { //ry > rx && rx >= rz
- c1_r = CLU(r_table, x_n, y_n, z) - CLU(r_table, x, y_n, z);
- c2_r = CLU(r_table, x_n, y_n, z) - c0_r;
- c3_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y_n, z);
- c1_g = CLU(g_table, x_n, y_n, z) - CLU(g_table, x, y_n, z);
- c2_g = CLU(g_table, x_n, y_n, z) - c0_g;
- c3_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y_n, z);
- c1_b = CLU(b_table, x_n, y_n, z) - CLU(b_table, x, y_n, z);
- c2_b = CLU(b_table, x_n, y_n, z) - c0_b;
- c3_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y_n, z);
- } else {
- if (ry >= rz) { //ry >= rz && rz > rx
- c1_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x, y_n, z_n);
- c2_r = CLU(r_table, x, y_n, z) - c0_r;
- c3_r = CLU(r_table, x, y_n, z_n) - CLU(r_table, x, y_n, z);
- c1_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x, y_n, z_n);
- c2_g = CLU(g_table, x, y_n, z) - c0_g;
- c3_g = CLU(g_table, x, y_n, z_n) - CLU(g_table, x, y_n, z);
- c1_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x, y_n, z_n);
- c2_b = CLU(b_table, x, y_n, z) - c0_b;
- c3_b = CLU(b_table, x, y_n, z_n) - CLU(b_table, x, y_n, z);
- } else { //rz > ry && ry > rx
- c1_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x, y_n, z_n);
- c2_r = CLU(r_table, x, y_n, z) - c0_r;
- c3_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y_n, z);
- c1_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x, y_n, z_n);
- c2_g = CLU(g_table, x, y_n, z) - c0_g;
- c3_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y_n, z);
- c1_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x, y_n, z_n);
- c2_b = CLU(b_table, x, y_n, z) - c0_b;
- c3_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y_n, z);
- }
- }
- }
-
- clut_r = c0_r + c1_r*rx + c2_r*ry + c3_r*rz;
- clut_g = c0_g + c1_g*rx + c2_g*ry + c3_g*rz;
- clut_b = c0_b + c1_b*rx + c2_b*ry + c3_b*rz;
-
- pcs_r = lut_interp_linear_float(clut_r,
- transform->output_clut_table_r, transform->output_clut_table_length);
- pcs_g = lut_interp_linear_float(clut_g,
- transform->output_clut_table_g, transform->output_clut_table_length);
- pcs_b = lut_interp_linear_float(clut_b,
- transform->output_clut_table_b, transform->output_clut_table_length);
- *dest++ = clamp_float(pcs_r);
- *dest++ = clamp_float(pcs_g);
- *dest++ = clamp_float(pcs_b);
- }
-}
-*/
-
-static void qcms_transform_module_gamma_table(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
-{
- size_t i;
- float out_r, out_g, out_b;
- for (i = 0; i < length; i++) {
- float in_r = *src++;
- float in_g = *src++;
- float in_b = *src++;
-
- out_r = lut_interp_linear_float(in_r, transform->input_clut_table_r, 256);
- out_g = lut_interp_linear_float(in_g, transform->input_clut_table_g, 256);
- out_b = lut_interp_linear_float(in_b, transform->input_clut_table_b, 256);
-
- *dest++ = clamp_float(out_r);
- *dest++ = clamp_float(out_g);
- *dest++ = clamp_float(out_b);
- }
-}
-
-static void qcms_transform_module_gamma_lut(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
-{
- size_t i;
- float out_r, out_g, out_b;
- for (i = 0; i < length; i++) {
- float in_r = *src++;
- float in_g = *src++;
- float in_b = *src++;
-
- out_r = lut_interp_linear(in_r,
- transform->output_gamma_lut_r, transform->output_gamma_lut_r_length);
- out_g = lut_interp_linear(in_g,
- transform->output_gamma_lut_g, transform->output_gamma_lut_g_length);
- out_b = lut_interp_linear(in_b,
- transform->output_gamma_lut_b, transform->output_gamma_lut_b_length);
-
- *dest++ = clamp_float(out_r);
- *dest++ = clamp_float(out_g);
- *dest++ = clamp_float(out_b);
- }
-}
-
-static void qcms_transform_module_matrix_translate(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
-{
- size_t i;
- struct matrix mat;
-
- /* store the results in column major mode
- * this makes doing the multiplication with sse easier */
- mat.m[0][0] = transform->matrix.m[0][0];
- mat.m[1][0] = transform->matrix.m[0][1];
- mat.m[2][0] = transform->matrix.m[0][2];
- mat.m[0][1] = transform->matrix.m[1][0];
- mat.m[1][1] = transform->matrix.m[1][1];
- mat.m[2][1] = transform->matrix.m[1][2];
- mat.m[0][2] = transform->matrix.m[2][0];
- mat.m[1][2] = transform->matrix.m[2][1];
- mat.m[2][2] = transform->matrix.m[2][2];
-
- for (i = 0; i < length; i++) {
- float in_r = *src++;
- float in_g = *src++;
- float in_b = *src++;
-
- float out_r = mat.m[0][0]*in_r + mat.m[1][0]*in_g + mat.m[2][0]*in_b + transform->tx;
- float out_g = mat.m[0][1]*in_r + mat.m[1][1]*in_g + mat.m[2][1]*in_b + transform->ty;
- float out_b = mat.m[0][2]*in_r + mat.m[1][2]*in_g + mat.m[2][2]*in_b + transform->tz;
-
- *dest++ = clamp_float(out_r);
- *dest++ = clamp_float(out_g);
- *dest++ = clamp_float(out_b);
- }
-}
-
-static void qcms_transform_module_matrix(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
-{
- size_t i;
- struct matrix mat;
-
- /* store the results in column major mode
- * this makes doing the multiplication with sse easier */
- mat.m[0][0] = transform->matrix.m[0][0];
- mat.m[1][0] = transform->matrix.m[0][1];
- mat.m[2][0] = transform->matrix.m[0][2];
- mat.m[0][1] = transform->matrix.m[1][0];
- mat.m[1][1] = transform->matrix.m[1][1];
- mat.m[2][1] = transform->matrix.m[1][2];
- mat.m[0][2] = transform->matrix.m[2][0];
- mat.m[1][2] = transform->matrix.m[2][1];
- mat.m[2][2] = transform->matrix.m[2][2];
-
- for (i = 0; i < length; i++) {
- float in_r = *src++;
- float in_g = *src++;
- float in_b = *src++;
-
- float out_r = mat.m[0][0]*in_r + mat.m[1][0]*in_g + mat.m[2][0]*in_b;
- float out_g = mat.m[0][1]*in_r + mat.m[1][1]*in_g + mat.m[2][1]*in_b;
- float out_b = mat.m[0][2]*in_r + mat.m[1][2]*in_g + mat.m[2][2]*in_b;
-
- *dest++ = clamp_float(out_r);
- *dest++ = clamp_float(out_g);
- *dest++ = clamp_float(out_b);
- }
-}
-
-static struct qcms_modular_transform* qcms_modular_transform_alloc() {
- return calloc(1, sizeof(struct qcms_modular_transform));
-}
-
-static void qcms_modular_transform_release(struct qcms_modular_transform *transform)
-{
- struct qcms_modular_transform *next_transform;
- while (transform != NULL) {
- next_transform = transform->next_transform;
- // clut may use a single block of memory.
- // Perhaps we should remove this to simply the code.
- if (transform->input_clut_table_r + transform->input_clut_table_length == transform->input_clut_table_g && transform->input_clut_table_g + transform->input_clut_table_length == transform->input_clut_table_b) {
- if (transform->input_clut_table_r) free(transform->input_clut_table_r);
- } else {
- if (transform->input_clut_table_r) free(transform->input_clut_table_r);
- if (transform->input_clut_table_g) free(transform->input_clut_table_g);
- if (transform->input_clut_table_b) free(transform->input_clut_table_b);
- }
- if (transform->r_clut + 1 == transform->g_clut && transform->g_clut + 1 == transform->b_clut) {
- if (transform->r_clut) free(transform->r_clut);
- } else {
- if (transform->r_clut) free(transform->r_clut);
- if (transform->g_clut) free(transform->g_clut);
- if (transform->b_clut) free(transform->b_clut);
- }
- if (transform->output_clut_table_r + transform->output_clut_table_length == transform->output_clut_table_g && transform->output_clut_table_g+ transform->output_clut_table_length == transform->output_clut_table_b) {
- if (transform->output_clut_table_r) free(transform->output_clut_table_r);
- } else {
- if (transform->output_clut_table_r) free(transform->output_clut_table_r);
- if (transform->output_clut_table_g) free(transform->output_clut_table_g);
- if (transform->output_clut_table_b) free(transform->output_clut_table_b);
- }
- if (transform->output_gamma_lut_r) free(transform->output_gamma_lut_r);
- if (transform->output_gamma_lut_g) free(transform->output_gamma_lut_g);
- if (transform->output_gamma_lut_b) free(transform->output_gamma_lut_b);
- free(transform);
- transform = next_transform;
- }
-}
-
-/* Set transform to be the next element in the linked list. */
-static void append_transform(struct qcms_modular_transform *transform, struct qcms_modular_transform ***next_transform)
-{
- **next_transform = transform;
- while (transform) {
- *next_transform = &(transform->next_transform);
- transform = transform->next_transform;
- }
-}
-
-/* reverse the transformation list (used by mBA) */
-static struct qcms_modular_transform* reverse_transform(struct qcms_modular_transform *transform)
-{
- struct qcms_modular_transform *prev_transform = NULL;
- while (transform != NULL) {
- struct qcms_modular_transform *next_transform = transform->next_transform;
- transform->next_transform = prev_transform;
- prev_transform = transform;
- transform = next_transform;
- }
-
- return prev_transform;
-}
-
-#define EMPTY_TRANSFORM_LIST NULL
-static struct qcms_modular_transform* qcms_modular_transform_create_mAB(struct lutmABType *lut)
-{
- struct qcms_modular_transform *first_transform = NULL;
- struct qcms_modular_transform **next_transform = &first_transform;
- struct qcms_modular_transform *transform = NULL;
-
- if (lut->a_curves[0] != NULL) {
- size_t clut_length;
- float *clut;
-
- // If the A curve is present this also implies the
- // presence of a CLUT.
- if (!lut->clut_table)
- goto fail;
-
- // Prepare A curve.
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- transform->input_clut_table_r = build_input_gamma_table(lut->a_curves[0]);
- transform->input_clut_table_g = build_input_gamma_table(lut->a_curves[1]);
- transform->input_clut_table_b = build_input_gamma_table(lut->a_curves[2]);
- transform->transform_module_fn = qcms_transform_module_gamma_table;
- if (lut->num_grid_points[0] != lut->num_grid_points[1] ||
- lut->num_grid_points[1] != lut->num_grid_points[2] ) {
- //XXX: We don't currently support clut that are not squared!
- goto fail;
- }
-
- // Prepare CLUT
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- clut_length = sizeof(float)*pow(lut->num_grid_points[0], 3)*3;
- clut = malloc(clut_length);
- if (!clut)
- goto fail;
- memcpy(clut, lut->clut_table, clut_length);
- transform->r_clut = clut + 0;
- transform->g_clut = clut + 1;
- transform->b_clut = clut + 2;
- transform->grid_size = lut->num_grid_points[0];
- transform->transform_module_fn = qcms_transform_module_clut_only;
- }
- if (lut->m_curves[0] != NULL) {
- // M curve imples the presence of a Matrix
-
- // Prepare M curve
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- transform->input_clut_table_r = build_input_gamma_table(lut->m_curves[0]);
- transform->input_clut_table_g = build_input_gamma_table(lut->m_curves[1]);
- transform->input_clut_table_b = build_input_gamma_table(lut->m_curves[2]);
- transform->transform_module_fn = qcms_transform_module_gamma_table;
-
- // Prepare Matrix
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- transform->matrix = build_mAB_matrix(lut);
- if (transform->matrix.invalid)
- goto fail;
- transform->tx = s15Fixed16Number_to_float(lut->e03);
- transform->ty = s15Fixed16Number_to_float(lut->e13);
- transform->tz = s15Fixed16Number_to_float(lut->e23);
- transform->transform_module_fn = qcms_transform_module_matrix_translate;
- }
- if (lut->b_curves[0] != NULL) {
- // Prepare B curve
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- transform->input_clut_table_r = build_input_gamma_table(lut->b_curves[0]);
- transform->input_clut_table_g = build_input_gamma_table(lut->b_curves[1]);
- transform->input_clut_table_b = build_input_gamma_table(lut->b_curves[2]);
- transform->transform_module_fn = qcms_transform_module_gamma_table;
- } else {
- // B curve is mandatory
- goto fail;
- }
-
- if (lut->reversed) {
- // mBA are identical to mAB except that the transformation order
- // is reversed
- first_transform = reverse_transform(first_transform);
- }
-
- return first_transform;
-fail:
- qcms_modular_transform_release(first_transform);
- return NULL;
-}
-
-static struct qcms_modular_transform* qcms_modular_transform_create_lut(struct lutType *lut)
-{
- struct qcms_modular_transform *first_transform = NULL;
- struct qcms_modular_transform **next_transform = &first_transform;
- struct qcms_modular_transform *transform = NULL;
-
- size_t in_curve_len, clut_length, out_curve_len;
- float *in_curves, *clut, *out_curves;
-
- // Prepare Matrix
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- transform->matrix = build_lut_matrix(lut);
- if (transform->matrix.invalid)
- goto fail;
- transform->transform_module_fn = qcms_transform_module_matrix;
-
- // Prepare input curves
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- in_curve_len = sizeof(float)*lut->num_input_table_entries * 3;
- in_curves = malloc(in_curve_len);
- if (!in_curves)
- goto fail;
- memcpy(in_curves, lut->input_table, in_curve_len);
- transform->input_clut_table_r = in_curves + lut->num_input_table_entries * 0;
- transform->input_clut_table_g = in_curves + lut->num_input_table_entries * 1;
- transform->input_clut_table_b = in_curves + lut->num_input_table_entries * 2;
- transform->input_clut_table_length = lut->num_input_table_entries;
-
- // Prepare table
- clut_length = sizeof(float)*pow(lut->num_clut_grid_points, 3)*3;
- clut = malloc(clut_length);
- if (!clut)
- goto fail;
- memcpy(clut, lut->clut_table, clut_length);
- transform->r_clut = clut + 0;
- transform->g_clut = clut + 1;
- transform->b_clut = clut + 2;
- transform->grid_size = lut->num_clut_grid_points;
-
- // Prepare output curves
- out_curve_len = sizeof(float) * lut->num_output_table_entries * 3;
- out_curves = malloc(out_curve_len);
- if (!out_curves)
- goto fail;
- memcpy(out_curves, lut->output_table, out_curve_len);
- transform->output_clut_table_r = out_curves + lut->num_output_table_entries * 0;
- transform->output_clut_table_g = out_curves + lut->num_output_table_entries * 1;
- transform->output_clut_table_b = out_curves + lut->num_output_table_entries * 2;
- transform->output_clut_table_length = lut->num_output_table_entries;
- transform->transform_module_fn = qcms_transform_module_clut;
-
- return first_transform;
-fail:
- qcms_modular_transform_release(first_transform);
- return NULL;
-}
-
-struct qcms_modular_transform* qcms_modular_transform_create_input(qcms_profile *in)
-{
- struct qcms_modular_transform *first_transform = NULL;
- struct qcms_modular_transform **next_transform = &first_transform;
-
- if (in->A2B0) {
- struct qcms_modular_transform *lut_transform;
- lut_transform = qcms_modular_transform_create_lut(in->A2B0);
- if (!lut_transform)
- goto fail;
- append_transform(lut_transform, &next_transform);
- } else if (in->mAB && in->mAB->num_in_channels == 3 && in->mAB->num_out_channels == 3) {
- struct qcms_modular_transform *mAB_transform;
- mAB_transform = qcms_modular_transform_create_mAB(in->mAB);
- if (!mAB_transform)
- goto fail;
- append_transform(mAB_transform, &next_transform);
-
- } else {
- struct qcms_modular_transform *transform;
-
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- transform->input_clut_table_r = build_input_gamma_table(in->redTRC);
- transform->input_clut_table_g = build_input_gamma_table(in->greenTRC);
- transform->input_clut_table_b = build_input_gamma_table(in->blueTRC);
- transform->transform_module_fn = qcms_transform_module_gamma_table;
- if (!transform->input_clut_table_r || !transform->input_clut_table_g ||
- !transform->input_clut_table_b) {
- goto fail;
- }
-
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- transform->matrix.m[0][0] = 1/1.999969482421875f;
- transform->matrix.m[0][1] = 0.f;
- transform->matrix.m[0][2] = 0.f;
- transform->matrix.m[1][0] = 0.f;
- transform->matrix.m[1][1] = 1/1.999969482421875f;
- transform->matrix.m[1][2] = 0.f;
- transform->matrix.m[2][0] = 0.f;
- transform->matrix.m[2][1] = 0.f;
- transform->matrix.m[2][2] = 1/1.999969482421875f;
- transform->matrix.invalid = false;
- transform->transform_module_fn = qcms_transform_module_matrix;
-
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- transform->matrix = build_colorant_matrix(in);
- transform->transform_module_fn = qcms_transform_module_matrix;
- }
-
- return first_transform;
-fail:
- qcms_modular_transform_release(first_transform);
- return EMPTY_TRANSFORM_LIST;
-}
-static struct qcms_modular_transform* qcms_modular_transform_create_output(qcms_profile *out)
-{
- struct qcms_modular_transform *first_transform = NULL;
- struct qcms_modular_transform **next_transform = &first_transform;
-
- if (out->B2A0) {
- struct qcms_modular_transform *lut_transform;
- lut_transform = qcms_modular_transform_create_lut(out->B2A0);
- if (!lut_transform)
- goto fail;
- append_transform(lut_transform, &next_transform);
- } else if (out->mBA && out->mBA->num_in_channels == 3 && out->mBA->num_out_channels == 3) {
- struct qcms_modular_transform *lut_transform;
- lut_transform = qcms_modular_transform_create_mAB(out->mBA);
- if (!lut_transform)
- goto fail;
- append_transform(lut_transform, &next_transform);
- } else if (out->redTRC && out->greenTRC && out->blueTRC) {
- struct qcms_modular_transform *transform;
-
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- transform->matrix = matrix_invert(build_colorant_matrix(out));
- transform->transform_module_fn = qcms_transform_module_matrix;
-
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- transform->matrix.m[0][0] = 1.999969482421875f;
- transform->matrix.m[0][1] = 0.f;
- transform->matrix.m[0][2] = 0.f;
- transform->matrix.m[1][0] = 0.f;
- transform->matrix.m[1][1] = 1.999969482421875f;
- transform->matrix.m[1][2] = 0.f;
- transform->matrix.m[2][0] = 0.f;
- transform->matrix.m[2][1] = 0.f;
- transform->matrix.m[2][2] = 1.999969482421875f;
- transform->matrix.invalid = false;
- transform->transform_module_fn = qcms_transform_module_matrix;
-
- transform = qcms_modular_transform_alloc();
- if (!transform)
- goto fail;
- append_transform(transform, &next_transform);
- build_output_lut(out->redTRC, &transform->output_gamma_lut_r,
- &transform->output_gamma_lut_r_length);
- build_output_lut(out->greenTRC, &transform->output_gamma_lut_g,
- &transform->output_gamma_lut_g_length);
- build_output_lut(out->blueTRC, &transform->output_gamma_lut_b,
- &transform->output_gamma_lut_b_length);
- transform->transform_module_fn = qcms_transform_module_gamma_lut;
-
- if (!transform->output_gamma_lut_r || !transform->output_gamma_lut_g ||
- !transform->output_gamma_lut_b) {
- goto fail;
- }
- } else {
- assert(0 && "Unsupported output profile workflow.");
- return NULL;
- }
-
- return first_transform;
-fail:
- qcms_modular_transform_release(first_transform);
- return EMPTY_TRANSFORM_LIST;
-}
-
-/* Not Completed
-// Simplify the transformation chain to an equivalent transformation chain
-static struct qcms_modular_transform* qcms_modular_transform_reduce(struct qcms_modular_transform *transform)
-{
- struct qcms_modular_transform *first_transform = NULL;
- struct qcms_modular_transform *curr_trans = transform;
- struct qcms_modular_transform *prev_trans = NULL;
- while (curr_trans) {
- struct qcms_modular_transform *next_trans = curr_trans->next_transform;
- if (curr_trans->transform_module_fn == qcms_transform_module_matrix) {
- if (next_trans && next_trans->transform_module_fn == qcms_transform_module_matrix) {
- curr_trans->matrix = matrix_multiply(curr_trans->matrix, next_trans->matrix);
- goto remove_next;
- }
- }
- if (curr_trans->transform_module_fn == qcms_transform_module_gamma_table) {
- bool isLinear = true;
- uint16_t i;
- for (i = 0; isLinear && i < 256; i++) {
- isLinear &= (int)(curr_trans->input_clut_table_r[i] * 255) == i;
- isLinear &= (int)(curr_trans->input_clut_table_g[i] * 255) == i;
- isLinear &= (int)(curr_trans->input_clut_table_b[i] * 255) == i;
- }
- goto remove_current;
- }
-
-next_transform:
- if (!next_trans) break;
- prev_trans = curr_trans;
- curr_trans = next_trans;
- continue;
-remove_current:
- if (curr_trans == transform) {
- //Update head
- transform = next_trans;
- } else {
- prev_trans->next_transform = next_trans;
- }
- curr_trans->next_transform = NULL;
- qcms_modular_transform_release(curr_trans);
- //return transform;
- return qcms_modular_transform_reduce(transform);
-remove_next:
- curr_trans->next_transform = next_trans->next_transform;
- next_trans->next_transform = NULL;
- qcms_modular_transform_release(next_trans);
- continue;
- }
- return transform;
-}
-*/
-
-static struct qcms_modular_transform* qcms_modular_transform_create(qcms_profile *in, qcms_profile *out)
-{
- struct qcms_modular_transform *first_transform = NULL;
- struct qcms_modular_transform **next_transform = &first_transform;
-
- if (in->color_space == RGB_SIGNATURE) {
- struct qcms_modular_transform* rgb_to_pcs;
- rgb_to_pcs = qcms_modular_transform_create_input(in);
- if (!rgb_to_pcs)
- goto fail;
- append_transform(rgb_to_pcs, &next_transform);
- } else {
- assert(0 && "input color space not supported");
- goto fail;
- }
-
- if (in->pcs == LAB_SIGNATURE && out->pcs == XYZ_SIGNATURE) {
- struct qcms_modular_transform* lab_to_pcs;
- lab_to_pcs = qcms_modular_transform_alloc();
- if (!lab_to_pcs)
- goto fail;
- append_transform(lab_to_pcs, &next_transform);
- lab_to_pcs->transform_module_fn = qcms_transform_module_LAB_to_XYZ;
- }
-
- // This does not improve accuracy in practice, something is wrong here.
- //if (in->chromaticAdaption.invalid == false) {
- // struct qcms_modular_transform* chromaticAdaption;
- // chromaticAdaption = qcms_modular_transform_alloc();
- // if (!chromaticAdaption)
- // goto fail;
- // append_transform(chromaticAdaption, &next_transform);
- // chromaticAdaption->matrix = matrix_invert(in->chromaticAdaption);
- // chromaticAdaption->transform_module_fn = qcms_transform_module_matrix;
- //}
-
- if (in->pcs == XYZ_SIGNATURE && out->pcs == LAB_SIGNATURE) {
- struct qcms_modular_transform* pcs_to_lab;
- pcs_to_lab = qcms_modular_transform_alloc();
- if (!pcs_to_lab)
- goto fail;
- append_transform(pcs_to_lab, &next_transform);
- pcs_to_lab->transform_module_fn = qcms_transform_module_XYZ_to_LAB;
- }
-
- if (out->color_space == RGB_SIGNATURE) {
- struct qcms_modular_transform* pcs_to_rgb;
- pcs_to_rgb = qcms_modular_transform_create_output(out);
- if (!pcs_to_rgb)
- goto fail;
- append_transform(pcs_to_rgb, &next_transform);
- } else {
- assert(0 && "output color space not supported");
- goto fail;
- }
- // Not Completed
- //return qcms_modular_transform_reduce(first_transform);
- return first_transform;
-fail:
- qcms_modular_transform_release(first_transform);
- return EMPTY_TRANSFORM_LIST;
-}
-
-static float* qcms_modular_transform_data(struct qcms_modular_transform *transform, float *src, float *dest, size_t len)
-{
- while (transform != NULL) {
- // Keep swaping src/dest when performing a transform to use less memory.
- float *new_src = dest;
- const transform_module_fn_t transform_fn = transform->transform_module_fn;
- if (transform_fn != qcms_transform_module_gamma_table &&
- transform_fn != qcms_transform_module_gamma_lut &&
- transform_fn != qcms_transform_module_clut &&
- transform_fn != qcms_transform_module_clut_only &&
- transform_fn != qcms_transform_module_matrix &&
- transform_fn != qcms_transform_module_matrix_translate &&
- transform_fn != qcms_transform_module_LAB_to_XYZ &&
- transform_fn != qcms_transform_module_XYZ_to_LAB) {
- assert(0 && "Unsupported transform module");
- return NULL;
- }
- transform->transform_module_fn(transform,src,dest,len);
- dest = src;
- src = new_src;
- transform = transform->next_transform;
- }
- // The results end up in the src buffer because of the switching
- return src;
-}
-
-float* qcms_chain_transform(qcms_profile *in, qcms_profile *out, float *src, float *dest, size_t lutSize)
-{
- struct qcms_modular_transform *transform_list = qcms_modular_transform_create(in, out);
- if (transform_list != NULL) {
- float *lut = qcms_modular_transform_data(transform_list, src, dest, lutSize/3);
- qcms_modular_transform_release(transform_list);
- return lut;
- }
- return NULL;
-}
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