/src/dng_sdk/source/dng_render.cpp

Line	Count	Source
1		/*****************************************************************************/
2		// Copyright 2006-2007 Adobe Systems Incorporated
3		// All Rights Reserved.
4		//
5		// NOTICE: Adobe permits you to use, modify, and distribute this file in
6		// accordance with the terms of the Adobe license agreement accompanying it.
7		/*****************************************************************************/
8
9		/* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_render.cpp#1 $ */
10		/* $DateTime: 2012/05/30 13:28:51 $ */
11		/* $Change: 832332 $ */
12		/* $Author: tknoll $ */
13
14		/*****************************************************************************/
15
16		#include "dng_render.h"
17
18		#include "dng_1d_table.h"
19		#include "dng_bottlenecks.h"
20		#include "dng_camera_profile.h"
21		#include "dng_color_space.h"
22		#include "dng_color_spec.h"
23		#include "dng_filter_task.h"
24		#include "dng_host.h"
25		#include "dng_image.h"
26		#include "dng_negative.h"
27		#include "dng_resample.h"
28		#include "dng_safe_arithmetic.h"
29		#include "dng_utils.h"
30
31		/*****************************************************************************/
32
33		dng_function_exposure_ramp::dng_function_exposure_ramp (real64 white,
34		real64 black,
35		real64 minBlack)
36
37	12.8k	: fSlope ((white == black) ? 0.0f : 1.0 / (white - black))
38	12.8k	, fBlack (black)
39
40	12.8k	, fRadius (0.0)
41	12.8k	, fQScale (0.0)
42
43	12.8k	{
44	12.8k	if (fSlope == 0.0)
45	32	{
46	32	ThrowBadFormat ();
47	32	}
48
49	12.8k	const real64 kMaxCurveX = 0.5; // Fraction of minBlack.
50
51	12.8k	const real64 kMaxCurveY = 1.0 / 16.0; // Fraction of white.
52
53	12.8k	fRadius = Min_real64 (kMaxCurveX * minBlack,
54	12.8k	kMaxCurveY / fSlope);
55
56	12.8k	if (fRadius > 0.0)
57	12.4k	fQScale= fSlope / (4.0 * fRadius);
58	351	else
59	351	fQScale = 0.0;
60
61	12.8k	}
62
63		/*****************************************************************************/
64
65		real64 dng_function_exposure_ramp::Evaluate (real64 x) const
66	52.4M	{
67
68	52.4M	if (x <= fBlack - fRadius)
69	135k	return 0.0;
70
71	52.2M	if (x >= fBlack + fRadius)
72	52.0M	return Min_real64 ((x - fBlack) * fSlope, 1.0);
73
74	245k	real64 y = x - (fBlack - fRadius);
75
76	245k	return fQScale * y * y;
77
78	52.2M	}
79
80		/*****************************************************************************/
81
82		dng_function_exposure_tone::dng_function_exposure_tone (real64 exposure)
83
84	12.7k	: fIsNOP (exposure >= 0.0)
85
86	12.7k	, fSlope (0.0)
87
88	12.7k	, a (0.0)
89	12.7k	, b (0.0)
90	12.7k	, c (0.0)
91
92	12.7k	{
93
94	12.7k	if (!fIsNOP)
95	182	{
96
97		// Find slope to use for the all except the highest two f-stops.
98
99	182	fSlope = pow (2.0, exposure);
100
101		// Find quadradic parameters that match this darking at the crossover
102		// point, yet still map pure white to pure white.
103
104	182	a = 16.0 / 9.0 * (1.0 - fSlope);
105
106	182	b = fSlope - 0.5 * a;
107
108	182	c = 1.0 - a - b;
109
110	182	}
111
112	12.7k	}
113
114		/*****************************************************************************/
115
116		real64 dng_function_exposure_tone::Evaluate (real64 x) const
117	52.4M	{
118
119	52.4M	if (!fIsNOP)
120	745k	{
121
122	745k	if (x <= 0.25)
123	186k	x = x * fSlope;
124
125	559k	else
126	559k	x = (a * x + b) * x + c;
127
128	745k	}
129
130	52.4M	return x;
131
132	52.4M	}
133
134		/*****************************************************************************/
135
136		real64 dng_tone_curve_acr3_default::Evaluate (real64 x) const
137	50.9M	{
138
139	50.9M	static const real32 kTable [] =
140	50.9M	{
141	50.9M	0.00000f, 0.00078f, 0.00160f, 0.00242f,
142	50.9M	0.00314f, 0.00385f, 0.00460f, 0.00539f,
143	50.9M	0.00623f, 0.00712f, 0.00806f, 0.00906f,
144	50.9M	0.01012f, 0.01122f, 0.01238f, 0.01359f,
145	50.9M	0.01485f, 0.01616f, 0.01751f, 0.01890f,
146	50.9M	0.02033f, 0.02180f, 0.02331f, 0.02485f,
147	50.9M	0.02643f, 0.02804f, 0.02967f, 0.03134f,
148	50.9M	0.03303f, 0.03475f, 0.03648f, 0.03824f,
149	50.9M	0.04002f, 0.04181f, 0.04362f, 0.04545f,
150	50.9M	0.04730f, 0.04916f, 0.05103f, 0.05292f,
151	50.9M	0.05483f, 0.05675f, 0.05868f, 0.06063f,
152	50.9M	0.06259f, 0.06457f, 0.06655f, 0.06856f,
153	50.9M	0.07057f, 0.07259f, 0.07463f, 0.07668f,
154	50.9M	0.07874f, 0.08081f, 0.08290f, 0.08499f,
155	50.9M	0.08710f, 0.08921f, 0.09134f, 0.09348f,
156	50.9M	0.09563f, 0.09779f, 0.09996f, 0.10214f,
157	50.9M	0.10433f, 0.10652f, 0.10873f, 0.11095f,
158	50.9M	0.11318f, 0.11541f, 0.11766f, 0.11991f,
159	50.9M	0.12218f, 0.12445f, 0.12673f, 0.12902f,
160	50.9M	0.13132f, 0.13363f, 0.13595f, 0.13827f,
161	50.9M	0.14061f, 0.14295f, 0.14530f, 0.14765f,
162	50.9M	0.15002f, 0.15239f, 0.15477f, 0.15716f,
163	50.9M	0.15956f, 0.16197f, 0.16438f, 0.16680f,
164	50.9M	0.16923f, 0.17166f, 0.17410f, 0.17655f,
165	50.9M	0.17901f, 0.18148f, 0.18395f, 0.18643f,
166	50.9M	0.18891f, 0.19141f, 0.19391f, 0.19641f,
167	50.9M	0.19893f, 0.20145f, 0.20398f, 0.20651f,
168	50.9M	0.20905f, 0.21160f, 0.21416f, 0.21672f,
169	50.9M	0.21929f, 0.22185f, 0.22440f, 0.22696f,
170	50.9M	0.22950f, 0.23204f, 0.23458f, 0.23711f,
171	50.9M	0.23963f, 0.24215f, 0.24466f, 0.24717f,
172	50.9M	0.24967f, 0.25216f, 0.25465f, 0.25713f,
173	50.9M	0.25961f, 0.26208f, 0.26454f, 0.26700f,
174	50.9M	0.26945f, 0.27189f, 0.27433f, 0.27676f,
175	50.9M	0.27918f, 0.28160f, 0.28401f, 0.28641f,
176	50.9M	0.28881f, 0.29120f, 0.29358f, 0.29596f,
177	50.9M	0.29833f, 0.30069f, 0.30305f, 0.30540f,
178	50.9M	0.30774f, 0.31008f, 0.31241f, 0.31473f,
179	50.9M	0.31704f, 0.31935f, 0.32165f, 0.32395f,
180	50.9M	0.32623f, 0.32851f, 0.33079f, 0.33305f,
181	50.9M	0.33531f, 0.33756f, 0.33981f, 0.34205f,
182	50.9M	0.34428f, 0.34650f, 0.34872f, 0.35093f,
183	50.9M	0.35313f, 0.35532f, 0.35751f, 0.35969f,
184	50.9M	0.36187f, 0.36404f, 0.36620f, 0.36835f,
185	50.9M	0.37050f, 0.37264f, 0.37477f, 0.37689f,
186	50.9M	0.37901f, 0.38112f, 0.38323f, 0.38533f,
187	50.9M	0.38742f, 0.38950f, 0.39158f, 0.39365f,
188	50.9M	0.39571f, 0.39777f, 0.39982f, 0.40186f,
189	50.9M	0.40389f, 0.40592f, 0.40794f, 0.40996f,
190	50.9M	0.41197f, 0.41397f, 0.41596f, 0.41795f,
191	50.9M	0.41993f, 0.42191f, 0.42388f, 0.42584f,
192	50.9M	0.42779f, 0.42974f, 0.43168f, 0.43362f,
193	50.9M	0.43554f, 0.43747f, 0.43938f, 0.44129f,
194	50.9M	0.44319f, 0.44509f, 0.44698f, 0.44886f,
195	50.9M	0.45073f, 0.45260f, 0.45447f, 0.45632f,
196	50.9M	0.45817f, 0.46002f, 0.46186f, 0.46369f,
197	50.9M	0.46551f, 0.46733f, 0.46914f, 0.47095f,
198	50.9M	0.47275f, 0.47454f, 0.47633f, 0.47811f,
199	50.9M	0.47989f, 0.48166f, 0.48342f, 0.48518f,
200	50.9M	0.48693f, 0.48867f, 0.49041f, 0.49214f,
201	50.9M	0.49387f, 0.49559f, 0.49730f, 0.49901f,
202	50.9M	0.50072f, 0.50241f, 0.50410f, 0.50579f,
203	50.9M	0.50747f, 0.50914f, 0.51081f, 0.51247f,
204	50.9M	0.51413f, 0.51578f, 0.51742f, 0.51906f,
205	50.9M	0.52069f, 0.52232f, 0.52394f, 0.52556f,
206	50.9M	0.52717f, 0.52878f, 0.53038f, 0.53197f,
207	50.9M	0.53356f, 0.53514f, 0.53672f, 0.53829f,
208	50.9M	0.53986f, 0.54142f, 0.54297f, 0.54452f,
209	50.9M	0.54607f, 0.54761f, 0.54914f, 0.55067f,
210	50.9M	0.55220f, 0.55371f, 0.55523f, 0.55673f,
211	50.9M	0.55824f, 0.55973f, 0.56123f, 0.56271f,
212	50.9M	0.56420f, 0.56567f, 0.56715f, 0.56861f,
213	50.9M	0.57007f, 0.57153f, 0.57298f, 0.57443f,
214	50.9M	0.57587f, 0.57731f, 0.57874f, 0.58017f,
215	50.9M	0.58159f, 0.58301f, 0.58443f, 0.58583f,
216	50.9M	0.58724f, 0.58864f, 0.59003f, 0.59142f,
217	50.9M	0.59281f, 0.59419f, 0.59556f, 0.59694f,
218	50.9M	0.59830f, 0.59966f, 0.60102f, 0.60238f,
219	50.9M	0.60373f, 0.60507f, 0.60641f, 0.60775f,
220	50.9M	0.60908f, 0.61040f, 0.61173f, 0.61305f,
221	50.9M	0.61436f, 0.61567f, 0.61698f, 0.61828f,
222	50.9M	0.61957f, 0.62087f, 0.62216f, 0.62344f,
223	50.9M	0.62472f, 0.62600f, 0.62727f, 0.62854f,
224	50.9M	0.62980f, 0.63106f, 0.63232f, 0.63357f,
225	50.9M	0.63482f, 0.63606f, 0.63730f, 0.63854f,
226	50.9M	0.63977f, 0.64100f, 0.64222f, 0.64344f,
227	50.9M	0.64466f, 0.64587f, 0.64708f, 0.64829f,
228	50.9M	0.64949f, 0.65069f, 0.65188f, 0.65307f,
229	50.9M	0.65426f, 0.65544f, 0.65662f, 0.65779f,
230	50.9M	0.65897f, 0.66013f, 0.66130f, 0.66246f,
231	50.9M	0.66362f, 0.66477f, 0.66592f, 0.66707f,
232	50.9M	0.66821f, 0.66935f, 0.67048f, 0.67162f,
233	50.9M	0.67275f, 0.67387f, 0.67499f, 0.67611f,
234	50.9M	0.67723f, 0.67834f, 0.67945f, 0.68055f,
235	50.9M	0.68165f, 0.68275f, 0.68385f, 0.68494f,
236	50.9M	0.68603f, 0.68711f, 0.68819f, 0.68927f,
237	50.9M	0.69035f, 0.69142f, 0.69249f, 0.69355f,
238	50.9M	0.69461f, 0.69567f, 0.69673f, 0.69778f,
239	50.9M	0.69883f, 0.69988f, 0.70092f, 0.70196f,
240	50.9M	0.70300f, 0.70403f, 0.70506f, 0.70609f,
241	50.9M	0.70711f, 0.70813f, 0.70915f, 0.71017f,
242	50.9M	0.71118f, 0.71219f, 0.71319f, 0.71420f,
243	50.9M	0.71520f, 0.71620f, 0.71719f, 0.71818f,
244	50.9M	0.71917f, 0.72016f, 0.72114f, 0.72212f,
245	50.9M	0.72309f, 0.72407f, 0.72504f, 0.72601f,
246	50.9M	0.72697f, 0.72794f, 0.72890f, 0.72985f,
247	50.9M	0.73081f, 0.73176f, 0.73271f, 0.73365f,
248	50.9M	0.73460f, 0.73554f, 0.73647f, 0.73741f,
249	50.9M	0.73834f, 0.73927f, 0.74020f, 0.74112f,
250	50.9M	0.74204f, 0.74296f, 0.74388f, 0.74479f,
251	50.9M	0.74570f, 0.74661f, 0.74751f, 0.74842f,
252	50.9M	0.74932f, 0.75021f, 0.75111f, 0.75200f,
253	50.9M	0.75289f, 0.75378f, 0.75466f, 0.75555f,
254	50.9M	0.75643f, 0.75730f, 0.75818f, 0.75905f,
255	50.9M	0.75992f, 0.76079f, 0.76165f, 0.76251f,
256	50.9M	0.76337f, 0.76423f, 0.76508f, 0.76594f,
257	50.9M	0.76679f, 0.76763f, 0.76848f, 0.76932f,
258	50.9M	0.77016f, 0.77100f, 0.77183f, 0.77267f,
259	50.9M	0.77350f, 0.77432f, 0.77515f, 0.77597f,
260	50.9M	0.77680f, 0.77761f, 0.77843f, 0.77924f,
261	50.9M	0.78006f, 0.78087f, 0.78167f, 0.78248f,
262	50.9M	0.78328f, 0.78408f, 0.78488f, 0.78568f,
263	50.9M	0.78647f, 0.78726f, 0.78805f, 0.78884f,
264	50.9M	0.78962f, 0.79040f, 0.79118f, 0.79196f,
265	50.9M	0.79274f, 0.79351f, 0.79428f, 0.79505f,
266	50.9M	0.79582f, 0.79658f, 0.79735f, 0.79811f,
267	50.9M	0.79887f, 0.79962f, 0.80038f, 0.80113f,
268	50.9M	0.80188f, 0.80263f, 0.80337f, 0.80412f,
269	50.9M	0.80486f, 0.80560f, 0.80634f, 0.80707f,
270	50.9M	0.80780f, 0.80854f, 0.80926f, 0.80999f,
271	50.9M	0.81072f, 0.81144f, 0.81216f, 0.81288f,
272	50.9M	0.81360f, 0.81431f, 0.81503f, 0.81574f,
273	50.9M	0.81645f, 0.81715f, 0.81786f, 0.81856f,
274	50.9M	0.81926f, 0.81996f, 0.82066f, 0.82135f,
275	50.9M	0.82205f, 0.82274f, 0.82343f, 0.82412f,
276	50.9M	0.82480f, 0.82549f, 0.82617f, 0.82685f,
277	50.9M	0.82753f, 0.82820f, 0.82888f, 0.82955f,
278	50.9M	0.83022f, 0.83089f, 0.83155f, 0.83222f,
279	50.9M	0.83288f, 0.83354f, 0.83420f, 0.83486f,
280	50.9M	0.83552f, 0.83617f, 0.83682f, 0.83747f,
281	50.9M	0.83812f, 0.83877f, 0.83941f, 0.84005f,
282	50.9M	0.84069f, 0.84133f, 0.84197f, 0.84261f,
283	50.9M	0.84324f, 0.84387f, 0.84450f, 0.84513f,
284	50.9M	0.84576f, 0.84639f, 0.84701f, 0.84763f,
285	50.9M	0.84825f, 0.84887f, 0.84949f, 0.85010f,
286	50.9M	0.85071f, 0.85132f, 0.85193f, 0.85254f,
287	50.9M	0.85315f, 0.85375f, 0.85436f, 0.85496f,
288	50.9M	0.85556f, 0.85615f, 0.85675f, 0.85735f,
289	50.9M	0.85794f, 0.85853f, 0.85912f, 0.85971f,
290	50.9M	0.86029f, 0.86088f, 0.86146f, 0.86204f,
291	50.9M	0.86262f, 0.86320f, 0.86378f, 0.86435f,
292	50.9M	0.86493f, 0.86550f, 0.86607f, 0.86664f,
293	50.9M	0.86720f, 0.86777f, 0.86833f, 0.86889f,
294	50.9M	0.86945f, 0.87001f, 0.87057f, 0.87113f,
295	50.9M	0.87168f, 0.87223f, 0.87278f, 0.87333f,
296	50.9M	0.87388f, 0.87443f, 0.87497f, 0.87552f,
297	50.9M	0.87606f, 0.87660f, 0.87714f, 0.87768f,
298	50.9M	0.87821f, 0.87875f, 0.87928f, 0.87981f,
299	50.9M	0.88034f, 0.88087f, 0.88140f, 0.88192f,
300	50.9M	0.88244f, 0.88297f, 0.88349f, 0.88401f,
301	50.9M	0.88453f, 0.88504f, 0.88556f, 0.88607f,
302	50.9M	0.88658f, 0.88709f, 0.88760f, 0.88811f,
303	50.9M	0.88862f, 0.88912f, 0.88963f, 0.89013f,
304	50.9M	0.89063f, 0.89113f, 0.89163f, 0.89212f,
305	50.9M	0.89262f, 0.89311f, 0.89360f, 0.89409f,
306	50.9M	0.89458f, 0.89507f, 0.89556f, 0.89604f,
307	50.9M	0.89653f, 0.89701f, 0.89749f, 0.89797f,
308	50.9M	0.89845f, 0.89892f, 0.89940f, 0.89987f,
309	50.9M	0.90035f, 0.90082f, 0.90129f, 0.90176f,
310	50.9M	0.90222f, 0.90269f, 0.90316f, 0.90362f,
311	50.9M	0.90408f, 0.90454f, 0.90500f, 0.90546f,
312	50.9M	0.90592f, 0.90637f, 0.90683f, 0.90728f,
313	50.9M	0.90773f, 0.90818f, 0.90863f, 0.90908f,
314	50.9M	0.90952f, 0.90997f, 0.91041f, 0.91085f,
315	50.9M	0.91130f, 0.91173f, 0.91217f, 0.91261f,
316	50.9M	0.91305f, 0.91348f, 0.91392f, 0.91435f,
317	50.9M	0.91478f, 0.91521f, 0.91564f, 0.91606f,
318	50.9M	0.91649f, 0.91691f, 0.91734f, 0.91776f,
319	50.9M	0.91818f, 0.91860f, 0.91902f, 0.91944f,
320	50.9M	0.91985f, 0.92027f, 0.92068f, 0.92109f,
321	50.9M	0.92150f, 0.92191f, 0.92232f, 0.92273f,
322	50.9M	0.92314f, 0.92354f, 0.92395f, 0.92435f,
323	50.9M	0.92475f, 0.92515f, 0.92555f, 0.92595f,
324	50.9M	0.92634f, 0.92674f, 0.92713f, 0.92753f,
325	50.9M	0.92792f, 0.92831f, 0.92870f, 0.92909f,
326	50.9M	0.92947f, 0.92986f, 0.93025f, 0.93063f,
327	50.9M	0.93101f, 0.93139f, 0.93177f, 0.93215f,
328	50.9M	0.93253f, 0.93291f, 0.93328f, 0.93366f,
329	50.9M	0.93403f, 0.93440f, 0.93478f, 0.93515f,
330	50.9M	0.93551f, 0.93588f, 0.93625f, 0.93661f,
331	50.9M	0.93698f, 0.93734f, 0.93770f, 0.93807f,
332	50.9M	0.93843f, 0.93878f, 0.93914f, 0.93950f,
333	50.9M	0.93986f, 0.94021f, 0.94056f, 0.94092f,
334	50.9M	0.94127f, 0.94162f, 0.94197f, 0.94231f,
335	50.9M	0.94266f, 0.94301f, 0.94335f, 0.94369f,
336	50.9M	0.94404f, 0.94438f, 0.94472f, 0.94506f,
337	50.9M	0.94540f, 0.94573f, 0.94607f, 0.94641f,
338	50.9M	0.94674f, 0.94707f, 0.94740f, 0.94774f,
339	50.9M	0.94807f, 0.94839f, 0.94872f, 0.94905f,
340	50.9M	0.94937f, 0.94970f, 0.95002f, 0.95035f,
341	50.9M	0.95067f, 0.95099f, 0.95131f, 0.95163f,
342	50.9M	0.95194f, 0.95226f, 0.95257f, 0.95289f,
343	50.9M	0.95320f, 0.95351f, 0.95383f, 0.95414f,
344	50.9M	0.95445f, 0.95475f, 0.95506f, 0.95537f,
345	50.9M	0.95567f, 0.95598f, 0.95628f, 0.95658f,
346	50.9M	0.95688f, 0.95718f, 0.95748f, 0.95778f,
347	50.9M	0.95808f, 0.95838f, 0.95867f, 0.95897f,
348	50.9M	0.95926f, 0.95955f, 0.95984f, 0.96013f,
349	50.9M	0.96042f, 0.96071f, 0.96100f, 0.96129f,
350	50.9M	0.96157f, 0.96186f, 0.96214f, 0.96242f,
351	50.9M	0.96271f, 0.96299f, 0.96327f, 0.96355f,
352	50.9M	0.96382f, 0.96410f, 0.96438f, 0.96465f,
353	50.9M	0.96493f, 0.96520f, 0.96547f, 0.96574f,
354	50.9M	0.96602f, 0.96629f, 0.96655f, 0.96682f,
355	50.9M	0.96709f, 0.96735f, 0.96762f, 0.96788f,
356	50.9M	0.96815f, 0.96841f, 0.96867f, 0.96893f,
357	50.9M	0.96919f, 0.96945f, 0.96971f, 0.96996f,
358	50.9M	0.97022f, 0.97047f, 0.97073f, 0.97098f,
359	50.9M	0.97123f, 0.97149f, 0.97174f, 0.97199f,
360	50.9M	0.97223f, 0.97248f, 0.97273f, 0.97297f,
361	50.9M	0.97322f, 0.97346f, 0.97371f, 0.97395f,
362	50.9M	0.97419f, 0.97443f, 0.97467f, 0.97491f,
363	50.9M	0.97515f, 0.97539f, 0.97562f, 0.97586f,
364	50.9M	0.97609f, 0.97633f, 0.97656f, 0.97679f,
365	50.9M	0.97702f, 0.97725f, 0.97748f, 0.97771f,
366	50.9M	0.97794f, 0.97817f, 0.97839f, 0.97862f,
367	50.9M	0.97884f, 0.97907f, 0.97929f, 0.97951f,
368	50.9M	0.97973f, 0.97995f, 0.98017f, 0.98039f,
369	50.9M	0.98061f, 0.98082f, 0.98104f, 0.98125f,
370	50.9M	0.98147f, 0.98168f, 0.98189f, 0.98211f,
371	50.9M	0.98232f, 0.98253f, 0.98274f, 0.98295f,
372	50.9M	0.98315f, 0.98336f, 0.98357f, 0.98377f,
373	50.9M	0.98398f, 0.98418f, 0.98438f, 0.98458f,
374	50.9M	0.98478f, 0.98498f, 0.98518f, 0.98538f,
375	50.9M	0.98558f, 0.98578f, 0.98597f, 0.98617f,
376	50.9M	0.98636f, 0.98656f, 0.98675f, 0.98694f,
377	50.9M	0.98714f, 0.98733f, 0.98752f, 0.98771f,
378	50.9M	0.98789f, 0.98808f, 0.98827f, 0.98845f,
379	50.9M	0.98864f, 0.98882f, 0.98901f, 0.98919f,
380	50.9M	0.98937f, 0.98955f, 0.98973f, 0.98991f,
381	50.9M	0.99009f, 0.99027f, 0.99045f, 0.99063f,
382	50.9M	0.99080f, 0.99098f, 0.99115f, 0.99133f,
383	50.9M	0.99150f, 0.99167f, 0.99184f, 0.99201f,
384	50.9M	0.99218f, 0.99235f, 0.99252f, 0.99269f,
385	50.9M	0.99285f, 0.99302f, 0.99319f, 0.99335f,
386	50.9M	0.99351f, 0.99368f, 0.99384f, 0.99400f,
387	50.9M	0.99416f, 0.99432f, 0.99448f, 0.99464f,
388	50.9M	0.99480f, 0.99495f, 0.99511f, 0.99527f,
389	50.9M	0.99542f, 0.99558f, 0.99573f, 0.99588f,
390	50.9M	0.99603f, 0.99619f, 0.99634f, 0.99649f,
391	50.9M	0.99664f, 0.99678f, 0.99693f, 0.99708f,
392	50.9M	0.99722f, 0.99737f, 0.99751f, 0.99766f,
393	50.9M	0.99780f, 0.99794f, 0.99809f, 0.99823f,
394	50.9M	0.99837f, 0.99851f, 0.99865f, 0.99879f,
395	50.9M	0.99892f, 0.99906f, 0.99920f, 0.99933f,
396	50.9M	0.99947f, 0.99960f, 0.99974f, 0.99987f,
397	50.9M	1.00000f
398	50.9M	};
399
400	50.9M	const uint32 kTableSize = sizeof (kTable ) /
401	50.9M	sizeof (kTable [0]);
402
403	50.9M	real32 y = (real32) x * (real32) (kTableSize - 1);
404
405	50.9M	int32 index = Pin_int32 (0, (int32) y, kTableSize - 2);
406
407	50.9M	real32 fract = y - (real32) index;
408
409	50.9M	return kTable [index ] * (1.0f - fract) +
410	50.9M	kTable [index + 1] * ( fract);
411
412	50.9M	}
413
414		/*****************************************************************************/
415
416		real64 dng_tone_curve_acr3_default::EvaluateInverse (real64 x) const
417	0	{
418
419	0	static const real32 kTable [] =
420	0	{
421	0	0.00000f, 0.00121f, 0.00237f, 0.00362f,
422	0	0.00496f, 0.00621f, 0.00738f, 0.00848f,
423	0	0.00951f, 0.01048f, 0.01139f, 0.01227f,
424	0	0.01312f, 0.01393f, 0.01471f, 0.01547f,
425	0	0.01620f, 0.01692f, 0.01763f, 0.01831f,
426	0	0.01899f, 0.01965f, 0.02030f, 0.02094f,
427	0	0.02157f, 0.02218f, 0.02280f, 0.02340f,
428	0	0.02399f, 0.02458f, 0.02517f, 0.02574f,
429	0	0.02631f, 0.02688f, 0.02744f, 0.02800f,
430	0	0.02855f, 0.02910f, 0.02965f, 0.03019f,
431	0	0.03072f, 0.03126f, 0.03179f, 0.03232f,
432	0	0.03285f, 0.03338f, 0.03390f, 0.03442f,
433	0	0.03493f, 0.03545f, 0.03596f, 0.03647f,
434	0	0.03698f, 0.03749f, 0.03799f, 0.03849f,
435	0	0.03899f, 0.03949f, 0.03998f, 0.04048f,
436	0	0.04097f, 0.04146f, 0.04195f, 0.04244f,
437	0	0.04292f, 0.04341f, 0.04389f, 0.04437f,
438	0	0.04485f, 0.04533f, 0.04580f, 0.04628f,
439	0	0.04675f, 0.04722f, 0.04769f, 0.04816f,
440	0	0.04863f, 0.04910f, 0.04956f, 0.05003f,
441	0	0.05049f, 0.05095f, 0.05141f, 0.05187f,
442	0	0.05233f, 0.05278f, 0.05324f, 0.05370f,
443	0	0.05415f, 0.05460f, 0.05505f, 0.05551f,
444	0	0.05595f, 0.05640f, 0.05685f, 0.05729f,
445	0	0.05774f, 0.05818f, 0.05863f, 0.05907f,
446	0	0.05951f, 0.05995f, 0.06039f, 0.06083f,
447	0	0.06126f, 0.06170f, 0.06214f, 0.06257f,
448	0	0.06301f, 0.06344f, 0.06388f, 0.06431f,
449	0	0.06474f, 0.06517f, 0.06560f, 0.06602f,
450	0	0.06645f, 0.06688f, 0.06731f, 0.06773f,
451	0	0.06815f, 0.06858f, 0.06900f, 0.06943f,
452	0	0.06985f, 0.07027f, 0.07069f, 0.07111f,
453	0	0.07152f, 0.07194f, 0.07236f, 0.07278f,
454	0	0.07319f, 0.07361f, 0.07402f, 0.07444f,
455	0	0.07485f, 0.07526f, 0.07567f, 0.07608f,
456	0	0.07650f, 0.07691f, 0.07732f, 0.07772f,
457	0	0.07813f, 0.07854f, 0.07895f, 0.07935f,
458	0	0.07976f, 0.08016f, 0.08057f, 0.08098f,
459	0	0.08138f, 0.08178f, 0.08218f, 0.08259f,
460	0	0.08299f, 0.08339f, 0.08379f, 0.08419f,
461	0	0.08459f, 0.08499f, 0.08539f, 0.08578f,
462	0	0.08618f, 0.08657f, 0.08697f, 0.08737f,
463	0	0.08776f, 0.08816f, 0.08855f, 0.08894f,
464	0	0.08934f, 0.08973f, 0.09012f, 0.09051f,
465	0	0.09091f, 0.09130f, 0.09169f, 0.09208f,
466	0	0.09247f, 0.09286f, 0.09324f, 0.09363f,
467	0	0.09402f, 0.09440f, 0.09479f, 0.09518f,
468	0	0.09556f, 0.09595f, 0.09633f, 0.09672f,
469	0	0.09710f, 0.09749f, 0.09787f, 0.09825f,
470	0	0.09863f, 0.09901f, 0.09939f, 0.09978f,
471	0	0.10016f, 0.10054f, 0.10092f, 0.10130f,
472	0	0.10167f, 0.10205f, 0.10243f, 0.10281f,
473	0	0.10319f, 0.10356f, 0.10394f, 0.10432f,
474	0	0.10469f, 0.10507f, 0.10544f, 0.10582f,
475	0	0.10619f, 0.10657f, 0.10694f, 0.10731f,
476	0	0.10768f, 0.10806f, 0.10843f, 0.10880f,
477	0	0.10917f, 0.10954f, 0.10991f, 0.11029f,
478	0	0.11066f, 0.11103f, 0.11141f, 0.11178f,
479	0	0.11215f, 0.11253f, 0.11290f, 0.11328f,
480	0	0.11365f, 0.11403f, 0.11440f, 0.11478f,
481	0	0.11516f, 0.11553f, 0.11591f, 0.11629f,
482	0	0.11666f, 0.11704f, 0.11742f, 0.11780f,
483	0	0.11818f, 0.11856f, 0.11894f, 0.11932f,
484	0	0.11970f, 0.12008f, 0.12046f, 0.12084f,
485	0	0.12122f, 0.12161f, 0.12199f, 0.12237f,
486	0	0.12276f, 0.12314f, 0.12352f, 0.12391f,
487	0	0.12429f, 0.12468f, 0.12506f, 0.12545f,
488	0	0.12583f, 0.12622f, 0.12661f, 0.12700f,
489	0	0.12738f, 0.12777f, 0.12816f, 0.12855f,
490	0	0.12894f, 0.12933f, 0.12972f, 0.13011f,
491	0	0.13050f, 0.13089f, 0.13129f, 0.13168f,
492	0	0.13207f, 0.13247f, 0.13286f, 0.13325f,
493	0	0.13365f, 0.13404f, 0.13444f, 0.13483f,
494	0	0.13523f, 0.13563f, 0.13603f, 0.13642f,
495	0	0.13682f, 0.13722f, 0.13762f, 0.13802f,
496	0	0.13842f, 0.13882f, 0.13922f, 0.13962f,
497	0	0.14003f, 0.14043f, 0.14083f, 0.14124f,
498	0	0.14164f, 0.14204f, 0.14245f, 0.14285f,
499	0	0.14326f, 0.14366f, 0.14407f, 0.14448f,
500	0	0.14489f, 0.14530f, 0.14570f, 0.14611f,
501	0	0.14652f, 0.14693f, 0.14734f, 0.14776f,
502	0	0.14817f, 0.14858f, 0.14900f, 0.14941f,
503	0	0.14982f, 0.15024f, 0.15065f, 0.15107f,
504	0	0.15148f, 0.15190f, 0.15232f, 0.15274f,
505	0	0.15316f, 0.15357f, 0.15399f, 0.15441f,
506	0	0.15483f, 0.15526f, 0.15568f, 0.15610f,
507	0	0.15652f, 0.15695f, 0.15737f, 0.15779f,
508	0	0.15822f, 0.15864f, 0.15907f, 0.15950f,
509	0	0.15992f, 0.16035f, 0.16078f, 0.16121f,
510	0	0.16164f, 0.16207f, 0.16250f, 0.16293f,
511	0	0.16337f, 0.16380f, 0.16423f, 0.16467f,
512	0	0.16511f, 0.16554f, 0.16598f, 0.16641f,
513	0	0.16685f, 0.16729f, 0.16773f, 0.16816f,
514	0	0.16860f, 0.16904f, 0.16949f, 0.16993f,
515	0	0.17037f, 0.17081f, 0.17126f, 0.17170f,
516	0	0.17215f, 0.17259f, 0.17304f, 0.17349f,
517	0	0.17393f, 0.17438f, 0.17483f, 0.17528f,
518	0	0.17573f, 0.17619f, 0.17664f, 0.17709f,
519	0	0.17754f, 0.17799f, 0.17845f, 0.17890f,
520	0	0.17936f, 0.17982f, 0.18028f, 0.18073f,
521	0	0.18119f, 0.18165f, 0.18211f, 0.18257f,
522	0	0.18303f, 0.18350f, 0.18396f, 0.18442f,
523	0	0.18489f, 0.18535f, 0.18582f, 0.18629f,
524	0	0.18676f, 0.18723f, 0.18770f, 0.18817f,
525	0	0.18864f, 0.18911f, 0.18958f, 0.19005f,
526	0	0.19053f, 0.19100f, 0.19147f, 0.19195f,
527	0	0.19243f, 0.19291f, 0.19339f, 0.19387f,
528	0	0.19435f, 0.19483f, 0.19531f, 0.19579f,
529	0	0.19627f, 0.19676f, 0.19724f, 0.19773f,
530	0	0.19821f, 0.19870f, 0.19919f, 0.19968f,
531	0	0.20017f, 0.20066f, 0.20115f, 0.20164f,
532	0	0.20214f, 0.20263f, 0.20313f, 0.20362f,
533	0	0.20412f, 0.20462f, 0.20512f, 0.20561f,
534	0	0.20611f, 0.20662f, 0.20712f, 0.20762f,
535	0	0.20812f, 0.20863f, 0.20913f, 0.20964f,
536	0	0.21015f, 0.21066f, 0.21117f, 0.21168f,
537	0	0.21219f, 0.21270f, 0.21321f, 0.21373f,
538	0	0.21424f, 0.21476f, 0.21527f, 0.21579f,
539	0	0.21631f, 0.21683f, 0.21735f, 0.21787f,
540	0	0.21839f, 0.21892f, 0.21944f, 0.21997f,
541	0	0.22049f, 0.22102f, 0.22155f, 0.22208f,
542	0	0.22261f, 0.22314f, 0.22367f, 0.22420f,
543	0	0.22474f, 0.22527f, 0.22581f, 0.22634f,
544	0	0.22688f, 0.22742f, 0.22796f, 0.22850f,
545	0	0.22905f, 0.22959f, 0.23013f, 0.23068f,
546	0	0.23123f, 0.23178f, 0.23232f, 0.23287f,
547	0	0.23343f, 0.23398f, 0.23453f, 0.23508f,
548	0	0.23564f, 0.23620f, 0.23675f, 0.23731f,
549	0	0.23787f, 0.23843f, 0.23899f, 0.23956f,
550	0	0.24012f, 0.24069f, 0.24125f, 0.24182f,
551	0	0.24239f, 0.24296f, 0.24353f, 0.24410f,
552	0	0.24468f, 0.24525f, 0.24582f, 0.24640f,
553	0	0.24698f, 0.24756f, 0.24814f, 0.24872f,
554	0	0.24931f, 0.24989f, 0.25048f, 0.25106f,
555	0	0.25165f, 0.25224f, 0.25283f, 0.25342f,
556	0	0.25401f, 0.25460f, 0.25520f, 0.25579f,
557	0	0.25639f, 0.25699f, 0.25759f, 0.25820f,
558	0	0.25880f, 0.25940f, 0.26001f, 0.26062f,
559	0	0.26122f, 0.26183f, 0.26244f, 0.26306f,
560	0	0.26367f, 0.26429f, 0.26490f, 0.26552f,
561	0	0.26614f, 0.26676f, 0.26738f, 0.26800f,
562	0	0.26863f, 0.26925f, 0.26988f, 0.27051f,
563	0	0.27114f, 0.27177f, 0.27240f, 0.27303f,
564	0	0.27367f, 0.27431f, 0.27495f, 0.27558f,
565	0	0.27623f, 0.27687f, 0.27751f, 0.27816f,
566	0	0.27881f, 0.27945f, 0.28011f, 0.28076f,
567	0	0.28141f, 0.28207f, 0.28272f, 0.28338f,
568	0	0.28404f, 0.28470f, 0.28536f, 0.28602f,
569	0	0.28669f, 0.28736f, 0.28802f, 0.28869f,
570	0	0.28937f, 0.29004f, 0.29071f, 0.29139f,
571	0	0.29207f, 0.29274f, 0.29342f, 0.29410f,
572	0	0.29479f, 0.29548f, 0.29616f, 0.29685f,
573	0	0.29754f, 0.29823f, 0.29893f, 0.29962f,
574	0	0.30032f, 0.30102f, 0.30172f, 0.30242f,
575	0	0.30312f, 0.30383f, 0.30453f, 0.30524f,
576	0	0.30595f, 0.30667f, 0.30738f, 0.30809f,
577	0	0.30881f, 0.30953f, 0.31025f, 0.31097f,
578	0	0.31170f, 0.31242f, 0.31315f, 0.31388f,
579	0	0.31461f, 0.31534f, 0.31608f, 0.31682f,
580	0	0.31755f, 0.31829f, 0.31904f, 0.31978f,
581	0	0.32053f, 0.32127f, 0.32202f, 0.32277f,
582	0	0.32353f, 0.32428f, 0.32504f, 0.32580f,
583	0	0.32656f, 0.32732f, 0.32808f, 0.32885f,
584	0	0.32962f, 0.33039f, 0.33116f, 0.33193f,
585	0	0.33271f, 0.33349f, 0.33427f, 0.33505f,
586	0	0.33583f, 0.33662f, 0.33741f, 0.33820f,
587	0	0.33899f, 0.33978f, 0.34058f, 0.34138f,
588	0	0.34218f, 0.34298f, 0.34378f, 0.34459f,
589	0	0.34540f, 0.34621f, 0.34702f, 0.34783f,
590	0	0.34865f, 0.34947f, 0.35029f, 0.35111f,
591	0	0.35194f, 0.35277f, 0.35360f, 0.35443f,
592	0	0.35526f, 0.35610f, 0.35694f, 0.35778f,
593	0	0.35862f, 0.35946f, 0.36032f, 0.36117f,
594	0	0.36202f, 0.36287f, 0.36372f, 0.36458f,
595	0	0.36545f, 0.36631f, 0.36718f, 0.36805f,
596	0	0.36891f, 0.36979f, 0.37066f, 0.37154f,
597	0	0.37242f, 0.37331f, 0.37419f, 0.37507f,
598	0	0.37596f, 0.37686f, 0.37775f, 0.37865f,
599	0	0.37955f, 0.38045f, 0.38136f, 0.38227f,
600	0	0.38317f, 0.38409f, 0.38500f, 0.38592f,
601	0	0.38684f, 0.38776f, 0.38869f, 0.38961f,
602	0	0.39055f, 0.39148f, 0.39242f, 0.39335f,
603	0	0.39430f, 0.39524f, 0.39619f, 0.39714f,
604	0	0.39809f, 0.39904f, 0.40000f, 0.40097f,
605	0	0.40193f, 0.40289f, 0.40386f, 0.40483f,
606	0	0.40581f, 0.40679f, 0.40777f, 0.40875f,
607	0	0.40974f, 0.41073f, 0.41172f, 0.41272f,
608	0	0.41372f, 0.41472f, 0.41572f, 0.41673f,
609	0	0.41774f, 0.41875f, 0.41977f, 0.42079f,
610	0	0.42181f, 0.42284f, 0.42386f, 0.42490f,
611	0	0.42594f, 0.42697f, 0.42801f, 0.42906f,
612	0	0.43011f, 0.43116f, 0.43222f, 0.43327f,
613	0	0.43434f, 0.43540f, 0.43647f, 0.43754f,
614	0	0.43862f, 0.43970f, 0.44077f, 0.44186f,
615	0	0.44295f, 0.44404f, 0.44514f, 0.44624f,
616	0	0.44734f, 0.44845f, 0.44956f, 0.45068f,
617	0	0.45179f, 0.45291f, 0.45404f, 0.45516f,
618	0	0.45630f, 0.45744f, 0.45858f, 0.45972f,
619	0	0.46086f, 0.46202f, 0.46318f, 0.46433f,
620	0	0.46550f, 0.46667f, 0.46784f, 0.46901f,
621	0	0.47019f, 0.47137f, 0.47256f, 0.47375f,
622	0	0.47495f, 0.47615f, 0.47735f, 0.47856f,
623	0	0.47977f, 0.48099f, 0.48222f, 0.48344f,
624	0	0.48467f, 0.48590f, 0.48714f, 0.48838f,
625	0	0.48963f, 0.49088f, 0.49213f, 0.49340f,
626	0	0.49466f, 0.49593f, 0.49721f, 0.49849f,
627	0	0.49977f, 0.50106f, 0.50236f, 0.50366f,
628	0	0.50496f, 0.50627f, 0.50758f, 0.50890f,
629	0	0.51023f, 0.51155f, 0.51289f, 0.51422f,
630	0	0.51556f, 0.51692f, 0.51827f, 0.51964f,
631	0	0.52100f, 0.52237f, 0.52374f, 0.52512f,
632	0	0.52651f, 0.52790f, 0.52930f, 0.53070f,
633	0	0.53212f, 0.53353f, 0.53495f, 0.53638f,
634	0	0.53781f, 0.53925f, 0.54070f, 0.54214f,
635	0	0.54360f, 0.54506f, 0.54653f, 0.54800f,
636	0	0.54949f, 0.55098f, 0.55247f, 0.55396f,
637	0	0.55548f, 0.55699f, 0.55851f, 0.56003f,
638	0	0.56156f, 0.56310f, 0.56464f, 0.56621f,
639	0	0.56777f, 0.56933f, 0.57091f, 0.57248f,
640	0	0.57407f, 0.57568f, 0.57727f, 0.57888f,
641	0	0.58050f, 0.58213f, 0.58376f, 0.58541f,
642	0	0.58705f, 0.58871f, 0.59037f, 0.59204f,
643	0	0.59373f, 0.59541f, 0.59712f, 0.59882f,
644	0	0.60052f, 0.60226f, 0.60399f, 0.60572f,
645	0	0.60748f, 0.60922f, 0.61099f, 0.61276f,
646	0	0.61455f, 0.61635f, 0.61814f, 0.61996f,
647	0	0.62178f, 0.62361f, 0.62545f, 0.62730f,
648	0	0.62917f, 0.63104f, 0.63291f, 0.63480f,
649	0	0.63671f, 0.63862f, 0.64054f, 0.64249f,
650	0	0.64443f, 0.64638f, 0.64835f, 0.65033f,
651	0	0.65232f, 0.65433f, 0.65633f, 0.65836f,
652	0	0.66041f, 0.66245f, 0.66452f, 0.66660f,
653	0	0.66868f, 0.67078f, 0.67290f, 0.67503f,
654	0	0.67717f, 0.67932f, 0.68151f, 0.68368f,
655	0	0.68587f, 0.68809f, 0.69033f, 0.69257f,
656	0	0.69482f, 0.69709f, 0.69939f, 0.70169f,
657	0	0.70402f, 0.70634f, 0.70869f, 0.71107f,
658	0	0.71346f, 0.71587f, 0.71829f, 0.72073f,
659	0	0.72320f, 0.72567f, 0.72818f, 0.73069f,
660	0	0.73323f, 0.73579f, 0.73838f, 0.74098f,
661	0	0.74360f, 0.74622f, 0.74890f, 0.75159f,
662	0	0.75429f, 0.75704f, 0.75979f, 0.76257f,
663	0	0.76537f, 0.76821f, 0.77109f, 0.77396f,
664	0	0.77688f, 0.77982f, 0.78278f, 0.78579f,
665	0	0.78883f, 0.79187f, 0.79498f, 0.79809f,
666	0	0.80127f, 0.80445f, 0.80767f, 0.81095f,
667	0	0.81424f, 0.81757f, 0.82094f, 0.82438f,
668	0	0.82782f, 0.83133f, 0.83488f, 0.83847f,
669	0	0.84210f, 0.84577f, 0.84951f, 0.85328f,
670	0	0.85713f, 0.86103f, 0.86499f, 0.86900f,
671	0	0.87306f, 0.87720f, 0.88139f, 0.88566f,
672	0	0.89000f, 0.89442f, 0.89891f, 0.90350f,
673	0	0.90818f, 0.91295f, 0.91780f, 0.92272f,
674	0	0.92780f, 0.93299f, 0.93828f, 0.94369f,
675	0	0.94926f, 0.95493f, 0.96082f, 0.96684f,
676	0	0.97305f, 0.97943f, 0.98605f, 0.99291f,
677	0	1.00000f
678	0	};
679
680	0	const uint32 kTableSize = sizeof (kTable ) /
681	0	sizeof (kTable [0]);
682
683	0	real32 y = (real32) x * (real32) (kTableSize - 1);
684
685	0	int32 index = Pin_int32 (0, (int32) y, kTableSize - 2);
686
687	0	real32 fract = y - (real32) index;
688
689	0	return kTable [index ] * (1.0f - fract) +
690	0	kTable [index + 1] * ( fract);
691
692	0	}
693
694		/*****************************************************************************/
695
696		const dng_1d_function & dng_tone_curve_acr3_default::Get ()
697	13.4k	{
698
699	13.4k	static dng_tone_curve_acr3_default static_dng_tone_curve_acr3_default;
700
701	13.4k	return static_dng_tone_curve_acr3_default;
702
703	13.4k	}
704
705		/*****************************************************************************/
706
707		class dng_render_task: public dng_filter_task
708		{
709
710		protected:
711
712		const dng_negative &fNegative;
713
714		const dng_render &fParams;
715
716		dng_point fSrcOffset;
717
718		dng_vector fCameraWhite;
719		dng_matrix fCameraToRGB;
720
721		AutoPtr<dng_hue_sat_map> fHueSatMap;
722
723		dng_1d_table fExposureRamp;
724
725		AutoPtr<dng_hue_sat_map> fLookTable;
726
727		dng_1d_table fToneCurve;
728
729		dng_matrix fRGBtoFinal;
730
731		dng_1d_table fEncodeGamma;
732
733		AutoPtr<dng_1d_table> fHueSatMapEncode;
734		AutoPtr<dng_1d_table> fHueSatMapDecode;
735
736		AutoPtr<dng_1d_table> fLookTableEncode;
737		AutoPtr<dng_1d_table> fLookTableDecode;
738
739		AutoPtr<dng_memory_block> fTempBuffer [kMaxMPThreads];
740
741		public:
742
743		dng_render_task (const dng_image &srcImage,
744		dng_image &dstImage,
745		const dng_negative &negative,
746		const dng_render &params,
747		const dng_point &srcOffset);
748
749		virtual dng_rect SrcArea (const dng_rect &dstArea);
750
751		virtual void Start (uint32 threadCount,
752		const dng_point &tileSize,
753		dng_memory_allocator *allocator,
754		dng_abort_sniffer *sniffer);
755
756		virtual void ProcessArea (uint32 threadIndex,
757		dng_pixel_buffer &srcBuffer,
758		dng_pixel_buffer &dstBuffer);
759
760		};
761
762		/*****************************************************************************/
763
764		dng_render_task::dng_render_task (const dng_image &srcImage,
765		dng_image &dstImage,
766		const dng_negative &negative,
767		const dng_render &params,
768		const dng_point &srcOffset)
769
770	12.8k	: dng_filter_task (srcImage,
771	12.8k	dstImage)
772
773	12.8k	, fNegative (negative )
774	12.8k	, fParams (params )
775	12.8k	, fSrcOffset (srcOffset)
776
777	12.8k	, fCameraWhite ()
778	12.8k	, fCameraToRGB ()
779
780	12.8k	, fHueSatMap ()
781
782	12.8k	, fExposureRamp ()
783
784	12.8k	, fLookTable ()
785
786	12.8k	, fToneCurve ()
787
788	12.8k	, fRGBtoFinal ()
789
790	12.8k	, fEncodeGamma ()
791
792	12.8k	, fHueSatMapEncode ()
793	12.8k	, fHueSatMapDecode ()
794
795	12.8k	, fLookTableEncode ()
796	12.8k	, fLookTableDecode ()
797
798	12.8k	{
799
800	12.8k	fSrcPixelType = ttFloat;
801	12.8k	fDstPixelType = ttFloat;
802
803	12.8k	}
804
805		/*****************************************************************************/
806
807		dng_rect dng_render_task::SrcArea (const dng_rect &dstArea)
808	712k	{
809
810	712k	return dstArea + fSrcOffset;
811
812	712k	}
813
814		/*****************************************************************************/
815
816		void dng_render_task::Start (uint32 threadCount,
817		const dng_point &tileSize,
818		dng_memory_allocator *allocator,
819		dng_abort_sniffer *sniffer)
820	12.8k	{
821
822	12.8k	dng_filter_task::Start (threadCount,
823	12.8k	tileSize,
824	12.8k	allocator,
825	12.8k	sniffer);
826
827		// Compute camera space to linear ProPhoto RGB parameters.
828
829	12.8k	dng_camera_profile_id profileID; // Default profile ID.
830
831	12.8k	if (!fNegative.IsMonochrome ())
832	2.84k	{
833
834	2.84k	AutoPtr<dng_color_spec> spec (fNegative.MakeColorSpec (profileID));
835
836	2.84k	if (fParams.WhiteXY ().IsValid ())
837	0	{
838
839	0	spec->SetWhiteXY (fParams.WhiteXY ());
840
841	0	}
842
843	2.84k	else if (fNegative.HasCameraNeutral ())
844	287	{
845
846	287	spec->SetWhiteXY (spec->NeutralToXY (fNegative.CameraNeutral ()));
847
848	287	}
849
850	2.56k	else if (fNegative.HasCameraWhiteXY ())
851	265	{
852
853	265	spec->SetWhiteXY (fNegative.CameraWhiteXY ());
854
855	265	}
856
857	2.29k	else
858	2.29k	{
859
860	2.29k	spec->SetWhiteXY (D55_xy_coord ());
861
862	2.29k	}
863
864	2.84k	fCameraWhite = spec->CameraWhite ();
865
866	2.84k	fCameraToRGB = dng_space_ProPhoto::Get ().MatrixFromPCS () *
867	2.84k	spec->CameraToPCS ();
868
869		// Find Hue/Sat table, if any.
870
871	2.84k	const dng_camera_profile *profile = fNegative.ProfileByID (profileID);
872
873	2.84k	if (profile)
874	2.80k	{
875
876	2.80k	fHueSatMap.Reset (profile->HueSatMapForWhite (spec->WhiteXY ()));
877
878	2.80k	if (profile->HasLookTable ())
879	0	{
880
881	0	fLookTable.Reset (new dng_hue_sat_map (profile->LookTable ()));
882
883	0	}
884
885	2.80k	if (profile->HueSatMapEncoding () != encoding_Linear)
886	27	{
887
888	27	BuildHueSatMapEncodingTable (*allocator,
889	27	profile->HueSatMapEncoding (),
890	27	fHueSatMapEncode,
891	27	fHueSatMapDecode,
892	27	false);
893
894	27	}
895
896	2.80k	if (profile->LookTableEncoding () != encoding_Linear)
897	110	{
898
899	110	BuildHueSatMapEncodingTable (*allocator,
900	110	profile->LookTableEncoding (),
901	110	fLookTableEncode,
902	110	fLookTableDecode,
903	110	false);
904
905	110	}
906
907	2.80k	}
908
909	2.84k	}
910
911		// Compute exposure/shadows ramp.
912
913	12.8k	real64 exposure = fParams.Exposure () +
914	12.8k	fNegative.TotalBaselineExposure (profileID) -
915	12.8k	(log (fNegative.Stage3Gain ()) / log (2.0));
916
917	12.8k	{
918
919	12.8k	real64 white = 1.0 / pow (2.0, Max_real64 (0.0, exposure));
920
921	12.8k	real64 black = fParams.Shadows () *
922	12.8k	fNegative.ShadowScale () *
923	12.8k	fNegative.Stage3Gain () *
924	12.8k	0.001;
925
926	12.8k	black = Min_real64 (black, 0.99 * white);
927
928	12.8k	dng_function_exposure_ramp rampFunction (white,
929	12.8k	black,
930	12.8k	black);
931
932	12.8k	fExposureRamp.Initialize (*allocator, rampFunction);
933
934	12.8k	}
935
936		// Compute tone curve.
937
938	12.8k	{
939
940		// If there is any negative exposure compenation to perform
941		// (beyond what the camera provides for with its baseline exposure),
942		// we fake this by darkening the tone curve.
943
944	12.8k	dng_function_exposure_tone exposureTone (exposure);
945
946	12.8k	dng_1d_concatenate totalTone (exposureTone,
947	12.8k	fParams.ToneCurve ());
948
949	12.8k	fToneCurve.Initialize (*allocator, totalTone);
950
951	12.8k	}
952
953		// Compute linear ProPhoto RGB to final space parameters.
954
955	12.8k	{
956
957	12.8k	const dng_color_space &finalSpace = fParams.FinalSpace ();
958
959	12.8k	fRGBtoFinal = finalSpace.MatrixFromPCS () *
960	12.8k	dng_space_ProPhoto::Get ().MatrixToPCS ();
961
962	12.8k	fEncodeGamma.Initialize (*allocator, finalSpace.GammaFunction ());
963
964	12.8k	}
965
966		// Allocate temp buffer to hold one row of RGB data.
967
968	12.8k	uint32 tempBufferSize = 0;
969
970	12.8k	if (!SafeUint32Mult (tileSize.h, (uint32) sizeof (real32), &tempBufferSize) \|\|
971	12.7k	!SafeUint32Mult (tempBufferSize, 3, &tempBufferSize))
972	0	{
973
974	0	ThrowMemoryFull("Arithmetic overflow computing buffer size.");
975
976	0	}
977
978	25.6k	for (uint32 threadIndex = 0; threadIndex < threadCount; threadIndex++)
979	12.7k	{
980
981	12.7k	fTempBuffer [threadIndex] . Reset (allocator->Allocate (tempBufferSize));
982
983	12.7k	}
984
985	12.8k	}
986
987		/*****************************************************************************/
988
989		void dng_render_task::ProcessArea (uint32 threadIndex,
990		dng_pixel_buffer &srcBuffer,
991		dng_pixel_buffer &dstBuffer)
992	699k	{
993
994	699k	dng_rect srcArea = srcBuffer.fArea;
995	699k	dng_rect dstArea = dstBuffer.fArea;
996
997	699k	uint32 srcCols = srcArea.W ();
998
999	699k	real32 *tPtrR = fTempBuffer [threadIndex]->Buffer_real32 ();
1000
1001	699k	real32 *tPtrG = tPtrR + srcCols;
1002	699k	real32 *tPtrB = tPtrG + srcCols;
1003
1004	46.0M	for (int32 srcRow = srcArea.t; srcRow < srcArea.b; srcRow++)
1005	45.3M	{
1006
1007		// First convert from camera native space to linear PhotoRGB,
1008		// applying the white balance and camera profile.
1009
1010	45.3M	{
1011
1012	45.3M	const real32 sPtrA = (const real32 )
1013	45.3M	srcBuffer.ConstPixel (srcRow,
1014	45.3M	srcArea.l,
1015	45.3M	0);
1016
1017	45.3M	if (fSrcPlanes == 1)
1018	44.5M	{
1019
1020		// For monochrome cameras, this just requires copying
1021		// the data into all three color channels.
1022
1023	44.5M	DoCopyBytes (sPtrA, tPtrR, srcCols * (uint32) sizeof (real32));
1024	44.5M	DoCopyBytes (sPtrA, tPtrG, srcCols * (uint32) sizeof (real32));
1025	44.5M	DoCopyBytes (sPtrA, tPtrB, srcCols * (uint32) sizeof (real32));
1026
1027	44.5M	}
1028
1029	867k	else
1030	867k	{
1031
1032	867k	const real32 *sPtrB = sPtrA + srcBuffer.fPlaneStep;
1033	867k	const real32 *sPtrC = sPtrB + srcBuffer.fPlaneStep;
1034
1035	867k	if (fSrcPlanes == 3)
1036	638k	{
1037
1038	638k	DoBaselineABCtoRGB (sPtrA,
1039	638k	sPtrB,
1040	638k	sPtrC,
1041	638k	tPtrR,
1042	638k	tPtrG,
1043	638k	tPtrB,
1044	638k	srcCols,
1045	638k	fCameraWhite,
1046	638k	fCameraToRGB);
1047
1048	638k	}
1049
1050	229k	else
1051	229k	{
1052
1053	229k	const real32 *sPtrD = sPtrC + srcBuffer.fPlaneStep;
1054
1055	229k	DoBaselineABCDtoRGB (sPtrA,
1056	229k	sPtrB,
1057	229k	sPtrC,
1058	229k	sPtrD,
1059	229k	tPtrR,
1060	229k	tPtrG,
1061	229k	tPtrB,
1062	229k	srcCols,
1063	229k	fCameraWhite,
1064	229k	fCameraToRGB);
1065
1066	229k	}
1067
1068		// Apply Hue/Sat map, if any.
1069
1070	867k	if (fHueSatMap.Get ())
1071	0	{
1072
1073	0	DoBaselineHueSatMap (tPtrR,
1074	0	tPtrG,
1075	0	tPtrB,
1076	0	tPtrR,
1077	0	tPtrG,
1078	0	tPtrB,
1079	0	srcCols,
1080	0	*fHueSatMap.Get (),
1081	0	fHueSatMapEncode.Get (),
1082	0	fHueSatMapDecode.Get ());
1083
1084	0	}
1085
1086	867k	}
1087
1088	45.3M	}
1089
1090		// Apply exposure curve.
1091
1092	45.3M	DoBaseline1DTable (tPtrR,
1093	45.3M	tPtrR,
1094	45.3M	srcCols,
1095	45.3M	fExposureRamp);
1096
1097	45.3M	DoBaseline1DTable (tPtrG,
1098	45.3M	tPtrG,
1099	45.3M	srcCols,
1100	45.3M	fExposureRamp);
1101
1102	45.3M	DoBaseline1DTable (tPtrB,
1103	45.3M	tPtrB,
1104	45.3M	srcCols,
1105	45.3M	fExposureRamp);
1106
1107		// Apply look table, if any.
1108
1109	45.3M	if (fLookTable.Get ())
1110	0	{
1111
1112	0	DoBaselineHueSatMap (tPtrR,
1113	0	tPtrG,
1114	0	tPtrB,
1115	0	tPtrR,
1116	0	tPtrG,
1117	0	tPtrB,
1118	0	srcCols,
1119	0	*fLookTable.Get (),
1120	0	fLookTableEncode.Get (),
1121	0	fLookTableDecode.Get ());
1122
1123	0	}
1124
1125		// Apply baseline tone curve.
1126
1127	45.3M	DoBaselineRGBTone (tPtrR,
1128	45.3M	tPtrG,
1129	45.3M	tPtrB,
1130	45.3M	tPtrR,
1131	45.3M	tPtrG,
1132	45.3M	tPtrB,
1133	45.3M	srcCols,
1134	45.3M	fToneCurve);
1135
1136		// Convert to final color space.
1137
1138	45.3M	int32 dstRow = srcRow + (dstArea.t - srcArea.t);
1139
1140	45.3M	if (fDstPlanes == 1)
1141	7.29M	{
1142
1143	7.29M	real32 *dPtrG = dstBuffer.DirtyPixel_real32 (dstRow,
1144	7.29M	dstArea.l,
1145	7.29M	0);
1146
1147	7.29M	DoBaselineRGBtoGray (tPtrR,
1148	7.29M	tPtrG,
1149	7.29M	tPtrB,
1150	7.29M	dPtrG,
1151	7.29M	srcCols,
1152	7.29M	fRGBtoFinal);
1153
1154	7.29M	DoBaseline1DTable (dPtrG,
1155	7.29M	dPtrG,
1156	7.29M	srcCols,
1157	7.29M	fEncodeGamma);
1158
1159	7.29M	}
1160
1161	38.0M	else
1162	38.0M	{
1163
1164	38.0M	real32 *dPtrR = dstBuffer.DirtyPixel_real32 (dstRow,
1165	38.0M	dstArea.l,
1166	38.0M	0);
1167
1168	38.0M	real32 *dPtrG = dPtrR + dstBuffer.fPlaneStep;
1169	38.0M	real32 *dPtrB = dPtrG + dstBuffer.fPlaneStep;
1170
1171	38.0M	DoBaselineRGBtoRGB (tPtrR,
1172	38.0M	tPtrG,
1173	38.0M	tPtrB,
1174	38.0M	dPtrR,
1175	38.0M	dPtrG,
1176	38.0M	dPtrB,
1177	38.0M	srcCols,
1178	38.0M	fRGBtoFinal);
1179
1180	38.0M	DoBaseline1DTable (dPtrR,
1181	38.0M	dPtrR,
1182	38.0M	srcCols,
1183	38.0M	fEncodeGamma);
1184
1185	38.0M	DoBaseline1DTable (dPtrG,
1186	38.0M	dPtrG,
1187	38.0M	srcCols,
1188	38.0M	fEncodeGamma);
1189
1190	38.0M	DoBaseline1DTable (dPtrB,
1191	38.0M	dPtrB,
1192	38.0M	srcCols,
1193	38.0M	fEncodeGamma);
1194
1195	38.0M	}
1196
1197	45.3M	}
1198
1199	699k	}
1200
1201		/*****************************************************************************/
1202
1203		dng_render::dng_render (dng_host &host,
1204		const dng_negative &negative)
1205
1206	13.4k	: fHost (host)
1207	13.4k	, fNegative (negative)
1208
1209	13.4k	, fWhiteXY ()
1210
1211	13.4k	, fExposure (0.0)
1212	13.4k	, fShadows (5.0)
1213
1214	13.4k	, fToneCurve (&dng_tone_curve_acr3_default::Get ())
1215
1216	13.4k	, fFinalSpace (&dng_space_sRGB::Get ())
1217	13.4k	, fFinalPixelType (ttByte)
1218
1219	13.4k	, fMaximumSize (0)
1220
1221	13.4k	, fProfileToneCurve ()
1222
1223	13.4k	{
1224
1225		// Switch to NOP default parameters for non-scene referred data.
1226
1227	13.4k	if (fNegative.ColorimetricReference () != crSceneReferred)
1228	321	{
1229
1230	321	fShadows = 0.0;
1231
1232	321	fToneCurve = &dng_1d_identity::Get ();
1233
1234	321	}
1235
1236		// Use default tone curve from profile if any.
1237
1238	13.4k	const dng_camera_profile *profile = fNegative.ProfileByID (dng_camera_profile_id ());
1239
1240	13.4k	if (profile && profile->ToneCurve ().IsValid ())
1241	52	{
1242
1243	52	fProfileToneCurve.Reset (new dng_spline_solver);
1244
1245	52	profile->ToneCurve ().Solve (*fProfileToneCurve.Get ());
1246
1247	52	fToneCurve = fProfileToneCurve.Get ();
1248
1249	52	}
1250
1251		// Turn off default shadow mapping if requested by profile.
1252
1253	13.4k	if (profile && (profile->DefaultBlackRender () == defaultBlackRender_None))
1254	17	{
1255
1256	17	fShadows = 0.0;
1257
1258	17	}
1259
1260	13.4k	}
1261
1262		/*****************************************************************************/
1263
1264		dng_image * dng_render::Render ()
1265	13.4k	{
1266
1267	13.4k	const dng_image *srcImage = fNegative.Stage3Image ();
1268
1269	13.4k	dng_rect srcBounds = fNegative.DefaultCropArea ();
1270
1271	13.4k	dng_point dstSize;
1272
1273	13.4k	dstSize.h = fNegative.DefaultFinalWidth ();
1274	13.4k	dstSize.v = fNegative.DefaultFinalHeight ();
1275
1276	13.4k	if (MaximumSize ())
1277	9.42k	{
1278
1279	9.42k	if (Max_uint32 (dstSize.h, dstSize.v) > MaximumSize ())
1280	4.26k	{
1281
1282	4.26k	real64 ratio = fNegative.AspectRatio ();
1283
1284	4.26k	if (ratio >= 1.0)
1285	2.16k	{
1286	2.16k	dstSize.h = MaximumSize ();
1287	2.16k	dstSize.v = Max_uint32 (1, Round_uint32 (dstSize.h / ratio));
1288	2.16k	}
1289
1290	2.09k	else
1291	2.09k	{
1292	2.09k	dstSize.v = MaximumSize ();
1293	2.09k	dstSize.h = Max_uint32 (1, Round_uint32 (dstSize.v * ratio));
1294	2.09k	}
1295
1296	4.26k	}
1297
1298	9.42k	}
1299
1300	13.4k	AutoPtr<dng_image> tempImage;
1301
1302	13.4k	if (srcBounds.Size () != dstSize)
1303	5.27k	{
1304
1305	5.27k	tempImage.Reset (fHost.Make_dng_image (dstSize,
1306	5.27k	srcImage->Planes (),
1307	5.27k	srcImage->PixelType ()));
1308
1309	5.27k	ResampleImage (fHost,
1310	5.27k	*srcImage,
1311	5.27k	*tempImage.Get (),
1312	5.27k	srcBounds,
1313	5.27k	tempImage->Bounds (),
1314	5.27k	dng_resample_bicubic::Get ());
1315
1316	5.27k	srcImage = tempImage.Get ();
1317
1318	5.27k	srcBounds = tempImage->Bounds ();
1319
1320	5.27k	}
1321
1322	13.4k	uint32 dstPlanes = FinalSpace ().IsMonochrome () ? 1 : 3;
1323
1324	13.4k	AutoPtr<dng_image> dstImage (fHost.Make_dng_image (srcBounds.Size (),
1325	13.4k	dstPlanes,
1326	13.4k	FinalPixelType ()));
1327
1328	13.4k	dng_render_task task (*srcImage,
1329	13.4k	*dstImage.Get (),
1330	13.4k	fNegative,
1331	13.4k	*this,
1332	13.4k	srcBounds.TL ());
1333
1334	13.4k	fHost.PerformAreaTask (task,
1335	13.4k	dstImage->Bounds ());
1336
1337	13.4k	return dstImage.Release ();
1338
1339	13.4k	}
1340
1341		/*****************************************************************************/

Coverage Report

Created: 2025-11-09 06:37