/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	10.9k	: fSlope ((white == black) ? 0.0f : 1.0 / (white - black))
38	10.9k	, fBlack (black)
39
40	10.9k	, fRadius (0.0)
41	10.9k	, fQScale (0.0)
42
43	10.9k	{
44	10.9k	if (fSlope == 0.0)
45	30	{
46	30	ThrowBadFormat ();
47	30	}
48
49	10.9k	const real64 kMaxCurveX = 0.5; // Fraction of minBlack.
50
51	10.9k	const real64 kMaxCurveY = 1.0 / 16.0; // Fraction of white.
52
53	10.9k	fRadius = Min_real64 (kMaxCurveX * minBlack,
54	10.9k	kMaxCurveY / fSlope);
55
56	10.9k	if (fRadius > 0.0)
57	10.4k	fQScale= fSlope / (4.0 * fRadius);
58	432	else
59	432	fQScale = 0.0;
60
61	10.9k	}
62
63		/*****************************************************************************/
64
65		real64 dng_function_exposure_ramp::Evaluate (real64 x) const
66	44.6M	{
67
68	44.6M	if (x <= fBlack - fRadius)
69	113k	return 0.0;
70
71	44.5M	if (x >= fBlack + fRadius)
72	44.3M	return Min_real64 ((x - fBlack) * fSlope, 1.0);
73
74	203k	real64 y = x - (fBlack - fRadius);
75
76	203k	return fQScale * y * y;
77
78	44.5M	}
79
80		/*****************************************************************************/
81
82		dng_function_exposure_tone::dng_function_exposure_tone (real64 exposure)
83
84	10.8k	: fIsNOP (exposure >= 0.0)
85
86	10.8k	, fSlope (0.0)
87
88	10.8k	, a (0.0)
89	10.8k	, b (0.0)
90	10.8k	, c (0.0)
91
92	10.8k	{
93
94	10.8k	if (!fIsNOP)
95	153	{
96
97		// Find slope to use for the all except the highest two f-stops.
98
99	153	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	153	a = 16.0 / 9.0 * (1.0 - fSlope);
105
106	153	b = fSlope - 0.5 * a;
107
108	153	c = 1.0 - a - b;
109
110	153	}
111
112	10.8k	}
113
114		/*****************************************************************************/
115
116		real64 dng_function_exposure_tone::Evaluate (real64 x) const
117	44.6M	{
118
119	44.6M	if (!fIsNOP)
120	626k	{
121
122	626k	if (x <= 0.25)
123	156k	x = x * fSlope;
124
125	470k	else
126	470k	x = (a * x + b) * x + c;
127
128	626k	}
129
130	44.6M	return x;
131
132	44.6M	}
133
134		/*****************************************************************************/
135
136		real64 dng_tone_curve_acr3_default::Evaluate (real64 x) const
137	42.8M	{
138
139	42.8M	static const real32 kTable [] =
140	42.8M	{
141	42.8M	0.00000f, 0.00078f, 0.00160f, 0.00242f,
142	42.8M	0.00314f, 0.00385f, 0.00460f, 0.00539f,
143	42.8M	0.00623f, 0.00712f, 0.00806f, 0.00906f,
144	42.8M	0.01012f, 0.01122f, 0.01238f, 0.01359f,
145	42.8M	0.01485f, 0.01616f, 0.01751f, 0.01890f,
146	42.8M	0.02033f, 0.02180f, 0.02331f, 0.02485f,
147	42.8M	0.02643f, 0.02804f, 0.02967f, 0.03134f,
148	42.8M	0.03303f, 0.03475f, 0.03648f, 0.03824f,
149	42.8M	0.04002f, 0.04181f, 0.04362f, 0.04545f,
150	42.8M	0.04730f, 0.04916f, 0.05103f, 0.05292f,
151	42.8M	0.05483f, 0.05675f, 0.05868f, 0.06063f,
152	42.8M	0.06259f, 0.06457f, 0.06655f, 0.06856f,
153	42.8M	0.07057f, 0.07259f, 0.07463f, 0.07668f,
154	42.8M	0.07874f, 0.08081f, 0.08290f, 0.08499f,
155	42.8M	0.08710f, 0.08921f, 0.09134f, 0.09348f,
156	42.8M	0.09563f, 0.09779f, 0.09996f, 0.10214f,
157	42.8M	0.10433f, 0.10652f, 0.10873f, 0.11095f,
158	42.8M	0.11318f, 0.11541f, 0.11766f, 0.11991f,
159	42.8M	0.12218f, 0.12445f, 0.12673f, 0.12902f,
160	42.8M	0.13132f, 0.13363f, 0.13595f, 0.13827f,
161	42.8M	0.14061f, 0.14295f, 0.14530f, 0.14765f,
162	42.8M	0.15002f, 0.15239f, 0.15477f, 0.15716f,
163	42.8M	0.15956f, 0.16197f, 0.16438f, 0.16680f,
164	42.8M	0.16923f, 0.17166f, 0.17410f, 0.17655f,
165	42.8M	0.17901f, 0.18148f, 0.18395f, 0.18643f,
166	42.8M	0.18891f, 0.19141f, 0.19391f, 0.19641f,
167	42.8M	0.19893f, 0.20145f, 0.20398f, 0.20651f,
168	42.8M	0.20905f, 0.21160f, 0.21416f, 0.21672f,
169	42.8M	0.21929f, 0.22185f, 0.22440f, 0.22696f,
170	42.8M	0.22950f, 0.23204f, 0.23458f, 0.23711f,
171	42.8M	0.23963f, 0.24215f, 0.24466f, 0.24717f,
172	42.8M	0.24967f, 0.25216f, 0.25465f, 0.25713f,
173	42.8M	0.25961f, 0.26208f, 0.26454f, 0.26700f,
174	42.8M	0.26945f, 0.27189f, 0.27433f, 0.27676f,
175	42.8M	0.27918f, 0.28160f, 0.28401f, 0.28641f,
176	42.8M	0.28881f, 0.29120f, 0.29358f, 0.29596f,
177	42.8M	0.29833f, 0.30069f, 0.30305f, 0.30540f,
178	42.8M	0.30774f, 0.31008f, 0.31241f, 0.31473f,
179	42.8M	0.31704f, 0.31935f, 0.32165f, 0.32395f,
180	42.8M	0.32623f, 0.32851f, 0.33079f, 0.33305f,
181	42.8M	0.33531f, 0.33756f, 0.33981f, 0.34205f,
182	42.8M	0.34428f, 0.34650f, 0.34872f, 0.35093f,
183	42.8M	0.35313f, 0.35532f, 0.35751f, 0.35969f,
184	42.8M	0.36187f, 0.36404f, 0.36620f, 0.36835f,
185	42.8M	0.37050f, 0.37264f, 0.37477f, 0.37689f,
186	42.8M	0.37901f, 0.38112f, 0.38323f, 0.38533f,
187	42.8M	0.38742f, 0.38950f, 0.39158f, 0.39365f,
188	42.8M	0.39571f, 0.39777f, 0.39982f, 0.40186f,
189	42.8M	0.40389f, 0.40592f, 0.40794f, 0.40996f,
190	42.8M	0.41197f, 0.41397f, 0.41596f, 0.41795f,
191	42.8M	0.41993f, 0.42191f, 0.42388f, 0.42584f,
192	42.8M	0.42779f, 0.42974f, 0.43168f, 0.43362f,
193	42.8M	0.43554f, 0.43747f, 0.43938f, 0.44129f,
194	42.8M	0.44319f, 0.44509f, 0.44698f, 0.44886f,
195	42.8M	0.45073f, 0.45260f, 0.45447f, 0.45632f,
196	42.8M	0.45817f, 0.46002f, 0.46186f, 0.46369f,
197	42.8M	0.46551f, 0.46733f, 0.46914f, 0.47095f,
198	42.8M	0.47275f, 0.47454f, 0.47633f, 0.47811f,
199	42.8M	0.47989f, 0.48166f, 0.48342f, 0.48518f,
200	42.8M	0.48693f, 0.48867f, 0.49041f, 0.49214f,
201	42.8M	0.49387f, 0.49559f, 0.49730f, 0.49901f,
202	42.8M	0.50072f, 0.50241f, 0.50410f, 0.50579f,
203	42.8M	0.50747f, 0.50914f, 0.51081f, 0.51247f,
204	42.8M	0.51413f, 0.51578f, 0.51742f, 0.51906f,
205	42.8M	0.52069f, 0.52232f, 0.52394f, 0.52556f,
206	42.8M	0.52717f, 0.52878f, 0.53038f, 0.53197f,
207	42.8M	0.53356f, 0.53514f, 0.53672f, 0.53829f,
208	42.8M	0.53986f, 0.54142f, 0.54297f, 0.54452f,
209	42.8M	0.54607f, 0.54761f, 0.54914f, 0.55067f,
210	42.8M	0.55220f, 0.55371f, 0.55523f, 0.55673f,
211	42.8M	0.55824f, 0.55973f, 0.56123f, 0.56271f,
212	42.8M	0.56420f, 0.56567f, 0.56715f, 0.56861f,
213	42.8M	0.57007f, 0.57153f, 0.57298f, 0.57443f,
214	42.8M	0.57587f, 0.57731f, 0.57874f, 0.58017f,
215	42.8M	0.58159f, 0.58301f, 0.58443f, 0.58583f,
216	42.8M	0.58724f, 0.58864f, 0.59003f, 0.59142f,
217	42.8M	0.59281f, 0.59419f, 0.59556f, 0.59694f,
218	42.8M	0.59830f, 0.59966f, 0.60102f, 0.60238f,
219	42.8M	0.60373f, 0.60507f, 0.60641f, 0.60775f,
220	42.8M	0.60908f, 0.61040f, 0.61173f, 0.61305f,
221	42.8M	0.61436f, 0.61567f, 0.61698f, 0.61828f,
222	42.8M	0.61957f, 0.62087f, 0.62216f, 0.62344f,
223	42.8M	0.62472f, 0.62600f, 0.62727f, 0.62854f,
224	42.8M	0.62980f, 0.63106f, 0.63232f, 0.63357f,
225	42.8M	0.63482f, 0.63606f, 0.63730f, 0.63854f,
226	42.8M	0.63977f, 0.64100f, 0.64222f, 0.64344f,
227	42.8M	0.64466f, 0.64587f, 0.64708f, 0.64829f,
228	42.8M	0.64949f, 0.65069f, 0.65188f, 0.65307f,
229	42.8M	0.65426f, 0.65544f, 0.65662f, 0.65779f,
230	42.8M	0.65897f, 0.66013f, 0.66130f, 0.66246f,
231	42.8M	0.66362f, 0.66477f, 0.66592f, 0.66707f,
232	42.8M	0.66821f, 0.66935f, 0.67048f, 0.67162f,
233	42.8M	0.67275f, 0.67387f, 0.67499f, 0.67611f,
234	42.8M	0.67723f, 0.67834f, 0.67945f, 0.68055f,
235	42.8M	0.68165f, 0.68275f, 0.68385f, 0.68494f,
236	42.8M	0.68603f, 0.68711f, 0.68819f, 0.68927f,
237	42.8M	0.69035f, 0.69142f, 0.69249f, 0.69355f,
238	42.8M	0.69461f, 0.69567f, 0.69673f, 0.69778f,
239	42.8M	0.69883f, 0.69988f, 0.70092f, 0.70196f,
240	42.8M	0.70300f, 0.70403f, 0.70506f, 0.70609f,
241	42.8M	0.70711f, 0.70813f, 0.70915f, 0.71017f,
242	42.8M	0.71118f, 0.71219f, 0.71319f, 0.71420f,
243	42.8M	0.71520f, 0.71620f, 0.71719f, 0.71818f,
244	42.8M	0.71917f, 0.72016f, 0.72114f, 0.72212f,
245	42.8M	0.72309f, 0.72407f, 0.72504f, 0.72601f,
246	42.8M	0.72697f, 0.72794f, 0.72890f, 0.72985f,
247	42.8M	0.73081f, 0.73176f, 0.73271f, 0.73365f,
248	42.8M	0.73460f, 0.73554f, 0.73647f, 0.73741f,
249	42.8M	0.73834f, 0.73927f, 0.74020f, 0.74112f,
250	42.8M	0.74204f, 0.74296f, 0.74388f, 0.74479f,
251	42.8M	0.74570f, 0.74661f, 0.74751f, 0.74842f,
252	42.8M	0.74932f, 0.75021f, 0.75111f, 0.75200f,
253	42.8M	0.75289f, 0.75378f, 0.75466f, 0.75555f,
254	42.8M	0.75643f, 0.75730f, 0.75818f, 0.75905f,
255	42.8M	0.75992f, 0.76079f, 0.76165f, 0.76251f,
256	42.8M	0.76337f, 0.76423f, 0.76508f, 0.76594f,
257	42.8M	0.76679f, 0.76763f, 0.76848f, 0.76932f,
258	42.8M	0.77016f, 0.77100f, 0.77183f, 0.77267f,
259	42.8M	0.77350f, 0.77432f, 0.77515f, 0.77597f,
260	42.8M	0.77680f, 0.77761f, 0.77843f, 0.77924f,
261	42.8M	0.78006f, 0.78087f, 0.78167f, 0.78248f,
262	42.8M	0.78328f, 0.78408f, 0.78488f, 0.78568f,
263	42.8M	0.78647f, 0.78726f, 0.78805f, 0.78884f,
264	42.8M	0.78962f, 0.79040f, 0.79118f, 0.79196f,
265	42.8M	0.79274f, 0.79351f, 0.79428f, 0.79505f,
266	42.8M	0.79582f, 0.79658f, 0.79735f, 0.79811f,
267	42.8M	0.79887f, 0.79962f, 0.80038f, 0.80113f,
268	42.8M	0.80188f, 0.80263f, 0.80337f, 0.80412f,
269	42.8M	0.80486f, 0.80560f, 0.80634f, 0.80707f,
270	42.8M	0.80780f, 0.80854f, 0.80926f, 0.80999f,
271	42.8M	0.81072f, 0.81144f, 0.81216f, 0.81288f,
272	42.8M	0.81360f, 0.81431f, 0.81503f, 0.81574f,
273	42.8M	0.81645f, 0.81715f, 0.81786f, 0.81856f,
274	42.8M	0.81926f, 0.81996f, 0.82066f, 0.82135f,
275	42.8M	0.82205f, 0.82274f, 0.82343f, 0.82412f,
276	42.8M	0.82480f, 0.82549f, 0.82617f, 0.82685f,
277	42.8M	0.82753f, 0.82820f, 0.82888f, 0.82955f,
278	42.8M	0.83022f, 0.83089f, 0.83155f, 0.83222f,
279	42.8M	0.83288f, 0.83354f, 0.83420f, 0.83486f,
280	42.8M	0.83552f, 0.83617f, 0.83682f, 0.83747f,
281	42.8M	0.83812f, 0.83877f, 0.83941f, 0.84005f,
282	42.8M	0.84069f, 0.84133f, 0.84197f, 0.84261f,
283	42.8M	0.84324f, 0.84387f, 0.84450f, 0.84513f,
284	42.8M	0.84576f, 0.84639f, 0.84701f, 0.84763f,
285	42.8M	0.84825f, 0.84887f, 0.84949f, 0.85010f,
286	42.8M	0.85071f, 0.85132f, 0.85193f, 0.85254f,
287	42.8M	0.85315f, 0.85375f, 0.85436f, 0.85496f,
288	42.8M	0.85556f, 0.85615f, 0.85675f, 0.85735f,
289	42.8M	0.85794f, 0.85853f, 0.85912f, 0.85971f,
290	42.8M	0.86029f, 0.86088f, 0.86146f, 0.86204f,
291	42.8M	0.86262f, 0.86320f, 0.86378f, 0.86435f,
292	42.8M	0.86493f, 0.86550f, 0.86607f, 0.86664f,
293	42.8M	0.86720f, 0.86777f, 0.86833f, 0.86889f,
294	42.8M	0.86945f, 0.87001f, 0.87057f, 0.87113f,
295	42.8M	0.87168f, 0.87223f, 0.87278f, 0.87333f,
296	42.8M	0.87388f, 0.87443f, 0.87497f, 0.87552f,
297	42.8M	0.87606f, 0.87660f, 0.87714f, 0.87768f,
298	42.8M	0.87821f, 0.87875f, 0.87928f, 0.87981f,
299	42.8M	0.88034f, 0.88087f, 0.88140f, 0.88192f,
300	42.8M	0.88244f, 0.88297f, 0.88349f, 0.88401f,
301	42.8M	0.88453f, 0.88504f, 0.88556f, 0.88607f,
302	42.8M	0.88658f, 0.88709f, 0.88760f, 0.88811f,
303	42.8M	0.88862f, 0.88912f, 0.88963f, 0.89013f,
304	42.8M	0.89063f, 0.89113f, 0.89163f, 0.89212f,
305	42.8M	0.89262f, 0.89311f, 0.89360f, 0.89409f,
306	42.8M	0.89458f, 0.89507f, 0.89556f, 0.89604f,
307	42.8M	0.89653f, 0.89701f, 0.89749f, 0.89797f,
308	42.8M	0.89845f, 0.89892f, 0.89940f, 0.89987f,
309	42.8M	0.90035f, 0.90082f, 0.90129f, 0.90176f,
310	42.8M	0.90222f, 0.90269f, 0.90316f, 0.90362f,
311	42.8M	0.90408f, 0.90454f, 0.90500f, 0.90546f,
312	42.8M	0.90592f, 0.90637f, 0.90683f, 0.90728f,
313	42.8M	0.90773f, 0.90818f, 0.90863f, 0.90908f,
314	42.8M	0.90952f, 0.90997f, 0.91041f, 0.91085f,
315	42.8M	0.91130f, 0.91173f, 0.91217f, 0.91261f,
316	42.8M	0.91305f, 0.91348f, 0.91392f, 0.91435f,
317	42.8M	0.91478f, 0.91521f, 0.91564f, 0.91606f,
318	42.8M	0.91649f, 0.91691f, 0.91734f, 0.91776f,
319	42.8M	0.91818f, 0.91860f, 0.91902f, 0.91944f,
320	42.8M	0.91985f, 0.92027f, 0.92068f, 0.92109f,
321	42.8M	0.92150f, 0.92191f, 0.92232f, 0.92273f,
322	42.8M	0.92314f, 0.92354f, 0.92395f, 0.92435f,
323	42.8M	0.92475f, 0.92515f, 0.92555f, 0.92595f,
324	42.8M	0.92634f, 0.92674f, 0.92713f, 0.92753f,
325	42.8M	0.92792f, 0.92831f, 0.92870f, 0.92909f,
326	42.8M	0.92947f, 0.92986f, 0.93025f, 0.93063f,
327	42.8M	0.93101f, 0.93139f, 0.93177f, 0.93215f,
328	42.8M	0.93253f, 0.93291f, 0.93328f, 0.93366f,
329	42.8M	0.93403f, 0.93440f, 0.93478f, 0.93515f,
330	42.8M	0.93551f, 0.93588f, 0.93625f, 0.93661f,
331	42.8M	0.93698f, 0.93734f, 0.93770f, 0.93807f,
332	42.8M	0.93843f, 0.93878f, 0.93914f, 0.93950f,
333	42.8M	0.93986f, 0.94021f, 0.94056f, 0.94092f,
334	42.8M	0.94127f, 0.94162f, 0.94197f, 0.94231f,
335	42.8M	0.94266f, 0.94301f, 0.94335f, 0.94369f,
336	42.8M	0.94404f, 0.94438f, 0.94472f, 0.94506f,
337	42.8M	0.94540f, 0.94573f, 0.94607f, 0.94641f,
338	42.8M	0.94674f, 0.94707f, 0.94740f, 0.94774f,
339	42.8M	0.94807f, 0.94839f, 0.94872f, 0.94905f,
340	42.8M	0.94937f, 0.94970f, 0.95002f, 0.95035f,
341	42.8M	0.95067f, 0.95099f, 0.95131f, 0.95163f,
342	42.8M	0.95194f, 0.95226f, 0.95257f, 0.95289f,
343	42.8M	0.95320f, 0.95351f, 0.95383f, 0.95414f,
344	42.8M	0.95445f, 0.95475f, 0.95506f, 0.95537f,
345	42.8M	0.95567f, 0.95598f, 0.95628f, 0.95658f,
346	42.8M	0.95688f, 0.95718f, 0.95748f, 0.95778f,
347	42.8M	0.95808f, 0.95838f, 0.95867f, 0.95897f,
348	42.8M	0.95926f, 0.95955f, 0.95984f, 0.96013f,
349	42.8M	0.96042f, 0.96071f, 0.96100f, 0.96129f,
350	42.8M	0.96157f, 0.96186f, 0.96214f, 0.96242f,
351	42.8M	0.96271f, 0.96299f, 0.96327f, 0.96355f,
352	42.8M	0.96382f, 0.96410f, 0.96438f, 0.96465f,
353	42.8M	0.96493f, 0.96520f, 0.96547f, 0.96574f,
354	42.8M	0.96602f, 0.96629f, 0.96655f, 0.96682f,
355	42.8M	0.96709f, 0.96735f, 0.96762f, 0.96788f,
356	42.8M	0.96815f, 0.96841f, 0.96867f, 0.96893f,
357	42.8M	0.96919f, 0.96945f, 0.96971f, 0.96996f,
358	42.8M	0.97022f, 0.97047f, 0.97073f, 0.97098f,
359	42.8M	0.97123f, 0.97149f, 0.97174f, 0.97199f,
360	42.8M	0.97223f, 0.97248f, 0.97273f, 0.97297f,
361	42.8M	0.97322f, 0.97346f, 0.97371f, 0.97395f,
362	42.8M	0.97419f, 0.97443f, 0.97467f, 0.97491f,
363	42.8M	0.97515f, 0.97539f, 0.97562f, 0.97586f,
364	42.8M	0.97609f, 0.97633f, 0.97656f, 0.97679f,
365	42.8M	0.97702f, 0.97725f, 0.97748f, 0.97771f,
366	42.8M	0.97794f, 0.97817f, 0.97839f, 0.97862f,
367	42.8M	0.97884f, 0.97907f, 0.97929f, 0.97951f,
368	42.8M	0.97973f, 0.97995f, 0.98017f, 0.98039f,
369	42.8M	0.98061f, 0.98082f, 0.98104f, 0.98125f,
370	42.8M	0.98147f, 0.98168f, 0.98189f, 0.98211f,
371	42.8M	0.98232f, 0.98253f, 0.98274f, 0.98295f,
372	42.8M	0.98315f, 0.98336f, 0.98357f, 0.98377f,
373	42.8M	0.98398f, 0.98418f, 0.98438f, 0.98458f,
374	42.8M	0.98478f, 0.98498f, 0.98518f, 0.98538f,
375	42.8M	0.98558f, 0.98578f, 0.98597f, 0.98617f,
376	42.8M	0.98636f, 0.98656f, 0.98675f, 0.98694f,
377	42.8M	0.98714f, 0.98733f, 0.98752f, 0.98771f,
378	42.8M	0.98789f, 0.98808f, 0.98827f, 0.98845f,
379	42.8M	0.98864f, 0.98882f, 0.98901f, 0.98919f,
380	42.8M	0.98937f, 0.98955f, 0.98973f, 0.98991f,
381	42.8M	0.99009f, 0.99027f, 0.99045f, 0.99063f,
382	42.8M	0.99080f, 0.99098f, 0.99115f, 0.99133f,
383	42.8M	0.99150f, 0.99167f, 0.99184f, 0.99201f,
384	42.8M	0.99218f, 0.99235f, 0.99252f, 0.99269f,
385	42.8M	0.99285f, 0.99302f, 0.99319f, 0.99335f,
386	42.8M	0.99351f, 0.99368f, 0.99384f, 0.99400f,
387	42.8M	0.99416f, 0.99432f, 0.99448f, 0.99464f,
388	42.8M	0.99480f, 0.99495f, 0.99511f, 0.99527f,
389	42.8M	0.99542f, 0.99558f, 0.99573f, 0.99588f,
390	42.8M	0.99603f, 0.99619f, 0.99634f, 0.99649f,
391	42.8M	0.99664f, 0.99678f, 0.99693f, 0.99708f,
392	42.8M	0.99722f, 0.99737f, 0.99751f, 0.99766f,
393	42.8M	0.99780f, 0.99794f, 0.99809f, 0.99823f,
394	42.8M	0.99837f, 0.99851f, 0.99865f, 0.99879f,
395	42.8M	0.99892f, 0.99906f, 0.99920f, 0.99933f,
396	42.8M	0.99947f, 0.99960f, 0.99974f, 0.99987f,
397	42.8M	1.00000f
398	42.8M	};
399
400	42.8M	const uint32 kTableSize = sizeof (kTable ) /
401	42.8M	sizeof (kTable [0]);
402
403	42.8M	real32 y = (real32) x * (real32) (kTableSize - 1);
404
405	42.8M	int32 index = Pin_int32 (0, (int32) y, kTableSize - 2);
406
407	42.8M	real32 fract = y - (real32) index;
408
409	42.8M	return kTable [index ] * (1.0f - fract) +
410	42.8M	kTable [index + 1] * ( fract);
411
412	42.8M	}
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	11.5k	{
698
699	11.5k	static dng_tone_curve_acr3_default static_dng_tone_curve_acr3_default;
700
701	11.5k	return static_dng_tone_curve_acr3_default;
702
703	11.5k	}
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	10.9k	: dng_filter_task (srcImage,
771	10.9k	dstImage)
772
773	10.9k	, fNegative (negative )
774	10.9k	, fParams (params )
775	10.9k	, fSrcOffset (srcOffset)
776
777	10.9k	, fCameraWhite ()
778	10.9k	, fCameraToRGB ()
779
780	10.9k	, fHueSatMap ()
781
782	10.9k	, fExposureRamp ()
783
784	10.9k	, fLookTable ()
785
786	10.9k	, fToneCurve ()
787
788	10.9k	, fRGBtoFinal ()
789
790	10.9k	, fEncodeGamma ()
791
792	10.9k	, fHueSatMapEncode ()
793	10.9k	, fHueSatMapDecode ()
794
795	10.9k	, fLookTableEncode ()
796	10.9k	, fLookTableDecode ()
797
798	10.9k	{
799
800	10.9k	fSrcPixelType = ttFloat;
801	10.9k	fDstPixelType = ttFloat;
802
803	10.9k	}
804
805		/*****************************************************************************/
806
807		dng_rect dng_render_task::SrcArea (const dng_rect &dstArea)
808	1.02M	{
809
810	1.02M	return dstArea + fSrcOffset;
811
812	1.02M	}
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	10.9k	{
821
822	10.9k	dng_filter_task::Start (threadCount,
823	10.9k	tileSize,
824	10.9k	allocator,
825	10.9k	sniffer);
826
827		// Compute camera space to linear ProPhoto RGB parameters.
828
829	10.9k	dng_camera_profile_id profileID; // Default profile ID.
830
831	10.9k	if (!fNegative.IsMonochrome ())
832	2.69k	{
833
834	2.69k	AutoPtr<dng_color_spec> spec (fNegative.MakeColorSpec (profileID));
835
836	2.69k	if (fParams.WhiteXY ().IsValid ())
837	0	{
838
839	0	spec->SetWhiteXY (fParams.WhiteXY ());
840
841	0	}
842
843	2.69k	else if (fNegative.HasCameraNeutral ())
844	298	{
845
846	298	spec->SetWhiteXY (spec->NeutralToXY (fNegative.CameraNeutral ()));
847
848	298	}
849
850	2.39k	else if (fNegative.HasCameraWhiteXY ())
851	215	{
852
853	215	spec->SetWhiteXY (fNegative.CameraWhiteXY ());
854
855	215	}
856
857	2.18k	else
858	2.18k	{
859
860	2.18k	spec->SetWhiteXY (D55_xy_coord ());
861
862	2.18k	}
863
864	2.69k	fCameraWhite = spec->CameraWhite ();
865
866	2.69k	fCameraToRGB = dng_space_ProPhoto::Get ().MatrixFromPCS () *
867	2.69k	spec->CameraToPCS ();
868
869		// Find Hue/Sat table, if any.
870
871	2.69k	const dng_camera_profile *profile = fNegative.ProfileByID (profileID);
872
873	2.69k	if (profile)
874	2.65k	{
875
876	2.65k	fHueSatMap.Reset (profile->HueSatMapForWhite (spec->WhiteXY ()));
877
878	2.65k	if (profile->HasLookTable ())
879	0	{
880
881	0	fLookTable.Reset (new dng_hue_sat_map (profile->LookTable ()));
882
883	0	}
884
885	2.65k	if (profile->HueSatMapEncoding () != encoding_Linear)
886	40	{
887
888	40	BuildHueSatMapEncodingTable (*allocator,
889	40	profile->HueSatMapEncoding (),
890	40	fHueSatMapEncode,
891	40	fHueSatMapDecode,
892	40	false);
893
894	40	}
895
896	2.65k	if (profile->LookTableEncoding () != encoding_Linear)
897	98	{
898
899	98	BuildHueSatMapEncodingTable (*allocator,
900	98	profile->LookTableEncoding (),
901	98	fLookTableEncode,
902	98	fLookTableDecode,
903	98	false);
904
905	98	}
906
907	2.65k	}
908
909	2.69k	}
910
911		// Compute exposure/shadows ramp.
912
913	10.9k	real64 exposure = fParams.Exposure () +
914	10.9k	fNegative.TotalBaselineExposure (profileID) -
915	10.9k	(log (fNegative.Stage3Gain ()) / log (2.0));
916
917	10.9k	{
918
919	10.9k	real64 white = 1.0 / pow (2.0, Max_real64 (0.0, exposure));
920
921	10.9k	real64 black = fParams.Shadows () *
922	10.9k	fNegative.ShadowScale () *
923	10.9k	fNegative.Stage3Gain () *
924	10.9k	0.001;
925
926	10.9k	black = Min_real64 (black, 0.99 * white);
927
928	10.9k	dng_function_exposure_ramp rampFunction (white,
929	10.9k	black,
930	10.9k	black);
931
932	10.9k	fExposureRamp.Initialize (*allocator, rampFunction);
933
934	10.9k	}
935
936		// Compute tone curve.
937
938	10.9k	{
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	10.9k	dng_function_exposure_tone exposureTone (exposure);
945
946	10.9k	dng_1d_concatenate totalTone (exposureTone,
947	10.9k	fParams.ToneCurve ());
948
949	10.9k	fToneCurve.Initialize (*allocator, totalTone);
950
951	10.9k	}
952
953		// Compute linear ProPhoto RGB to final space parameters.
954
955	10.9k	{
956
957	10.9k	const dng_color_space &finalSpace = fParams.FinalSpace ();
958
959	10.9k	fRGBtoFinal = finalSpace.MatrixFromPCS () *
960	10.9k	dng_space_ProPhoto::Get ().MatrixToPCS ();
961
962	10.9k	fEncodeGamma.Initialize (*allocator, finalSpace.GammaFunction ());
963
964	10.9k	}
965
966		// Allocate temp buffer to hold one row of RGB data.
967
968	10.9k	uint32 tempBufferSize = 0;
969
970	10.9k	if (!SafeUint32Mult (tileSize.h, (uint32) sizeof (real32), &tempBufferSize) \|\|
971	10.8k	!SafeUint32Mult (tempBufferSize, 3, &tempBufferSize))
972	0	{
973
974	0	ThrowMemoryFull("Arithmetic overflow computing buffer size.");
975
976	0	}
977
978	21.8k	for (uint32 threadIndex = 0; threadIndex < threadCount; threadIndex++)
979	10.8k	{
980
981	10.8k	fTempBuffer [threadIndex] . Reset (allocator->Allocate (tempBufferSize));
982
983	10.8k	}
984
985	10.9k	}
986
987		/*****************************************************************************/
988
989		void dng_render_task::ProcessArea (uint32 threadIndex,
990		dng_pixel_buffer &srcBuffer,
991		dng_pixel_buffer &dstBuffer)
992	1.01M	{
993
994	1.01M	dng_rect srcArea = srcBuffer.fArea;
995	1.01M	dng_rect dstArea = dstBuffer.fArea;
996
997	1.01M	uint32 srcCols = srcArea.W ();
998
999	1.01M	real32 *tPtrR = fTempBuffer [threadIndex]->Buffer_real32 ();
1000
1001	1.01M	real32 *tPtrG = tPtrR + srcCols;
1002	1.01M	real32 *tPtrB = tPtrG + srcCols;
1003
1004	41.3M	for (int32 srcRow = srcArea.t; srcRow < srcArea.b; srcRow++)
1005	40.2M	{
1006
1007		// First convert from camera native space to linear PhotoRGB,
1008		// applying the white balance and camera profile.
1009
1010	40.2M	{
1011
1012	40.2M	const real32 sPtrA = (const real32 )
1013	40.2M	srcBuffer.ConstPixel (srcRow,
1014	40.2M	srcArea.l,
1015	40.2M	0);
1016
1017	40.2M	if (fSrcPlanes == 1)
1018	39.0M	{
1019
1020		// For monochrome cameras, this just requires copying
1021		// the data into all three color channels.
1022
1023	39.0M	DoCopyBytes (sPtrA, tPtrR, srcCols * (uint32) sizeof (real32));
1024	39.0M	DoCopyBytes (sPtrA, tPtrG, srcCols * (uint32) sizeof (real32));
1025	39.0M	DoCopyBytes (sPtrA, tPtrB, srcCols * (uint32) sizeof (real32));
1026
1027	39.0M	}
1028
1029	1.22M	else
1030	1.22M	{
1031
1032	1.22M	const real32 *sPtrB = sPtrA + srcBuffer.fPlaneStep;
1033	1.22M	const real32 *sPtrC = sPtrB + srcBuffer.fPlaneStep;
1034
1035	1.22M	if (fSrcPlanes == 3)
1036	767k	{
1037
1038	767k	DoBaselineABCtoRGB (sPtrA,
1039	767k	sPtrB,
1040	767k	sPtrC,
1041	767k	tPtrR,
1042	767k	tPtrG,
1043	767k	tPtrB,
1044	767k	srcCols,
1045	767k	fCameraWhite,
1046	767k	fCameraToRGB);
1047
1048	767k	}
1049
1050	459k	else
1051	459k	{
1052
1053	459k	const real32 *sPtrD = sPtrC + srcBuffer.fPlaneStep;
1054
1055	459k	DoBaselineABCDtoRGB (sPtrA,
1056	459k	sPtrB,
1057	459k	sPtrC,
1058	459k	sPtrD,
1059	459k	tPtrR,
1060	459k	tPtrG,
1061	459k	tPtrB,
1062	459k	srcCols,
1063	459k	fCameraWhite,
1064	459k	fCameraToRGB);
1065
1066	459k	}
1067
1068		// Apply Hue/Sat map, if any.
1069
1070	1.22M	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	1.22M	}
1087
1088	40.2M	}
1089
1090		// Apply exposure curve.
1091
1092	40.2M	DoBaseline1DTable (tPtrR,
1093	40.2M	tPtrR,
1094	40.2M	srcCols,
1095	40.2M	fExposureRamp);
1096
1097	40.2M	DoBaseline1DTable (tPtrG,
1098	40.2M	tPtrG,
1099	40.2M	srcCols,
1100	40.2M	fExposureRamp);
1101
1102	40.2M	DoBaseline1DTable (tPtrB,
1103	40.2M	tPtrB,
1104	40.2M	srcCols,
1105	40.2M	fExposureRamp);
1106
1107		// Apply look table, if any.
1108
1109	40.2M	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	40.2M	DoBaselineRGBTone (tPtrR,
1128	40.2M	tPtrG,
1129	40.2M	tPtrB,
1130	40.2M	tPtrR,
1131	40.2M	tPtrG,
1132	40.2M	tPtrB,
1133	40.2M	srcCols,
1134	40.2M	fToneCurve);
1135
1136		// Convert to final color space.
1137
1138	40.2M	int32 dstRow = srcRow + (dstArea.t - srcArea.t);
1139
1140	40.2M	if (fDstPlanes == 1)
1141	3.58M	{
1142
1143	3.58M	real32 *dPtrG = dstBuffer.DirtyPixel_real32 (dstRow,
1144	3.58M	dstArea.l,
1145	3.58M	0);
1146
1147	3.58M	DoBaselineRGBtoGray (tPtrR,
1148	3.58M	tPtrG,
1149	3.58M	tPtrB,
1150	3.58M	dPtrG,
1151	3.58M	srcCols,
1152	3.58M	fRGBtoFinal);
1153
1154	3.58M	DoBaseline1DTable (dPtrG,
1155	3.58M	dPtrG,
1156	3.58M	srcCols,
1157	3.58M	fEncodeGamma);
1158
1159	3.58M	}
1160
1161	36.7M	else
1162	36.7M	{
1163
1164	36.7M	real32 *dPtrR = dstBuffer.DirtyPixel_real32 (dstRow,
1165	36.7M	dstArea.l,
1166	36.7M	0);
1167
1168	36.7M	real32 *dPtrG = dPtrR + dstBuffer.fPlaneStep;
1169	36.7M	real32 *dPtrB = dPtrG + dstBuffer.fPlaneStep;
1170
1171	36.7M	DoBaselineRGBtoRGB (tPtrR,
1172	36.7M	tPtrG,
1173	36.7M	tPtrB,
1174	36.7M	dPtrR,
1175	36.7M	dPtrG,
1176	36.7M	dPtrB,
1177	36.7M	srcCols,
1178	36.7M	fRGBtoFinal);
1179
1180	36.7M	DoBaseline1DTable (dPtrR,
1181	36.7M	dPtrR,
1182	36.7M	srcCols,
1183	36.7M	fEncodeGamma);
1184
1185	36.7M	DoBaseline1DTable (dPtrG,
1186	36.7M	dPtrG,
1187	36.7M	srcCols,
1188	36.7M	fEncodeGamma);
1189
1190	36.7M	DoBaseline1DTable (dPtrB,
1191	36.7M	dPtrB,
1192	36.7M	srcCols,
1193	36.7M	fEncodeGamma);
1194
1195	36.7M	}
1196
1197	40.2M	}
1198
1199	1.01M	}
1200
1201		/*****************************************************************************/
1202
1203		dng_render::dng_render (dng_host &host,
1204		const dng_negative &negative)
1205
1206	11.5k	: fHost (host)
1207	11.5k	, fNegative (negative)
1208
1209	11.5k	, fWhiteXY ()
1210
1211	11.5k	, fExposure (0.0)
1212	11.5k	, fShadows (5.0)
1213
1214	11.5k	, fToneCurve (&dng_tone_curve_acr3_default::Get ())
1215
1216	11.5k	, fFinalSpace (&dng_space_sRGB::Get ())
1217	11.5k	, fFinalPixelType (ttByte)
1218
1219	11.5k	, fMaximumSize (0)
1220
1221	11.5k	, fProfileToneCurve ()
1222
1223	11.5k	{
1224
1225		// Switch to NOP default parameters for non-scene referred data.
1226
1227	11.5k	if (fNegative.ColorimetricReference () != crSceneReferred)
1228	420	{
1229
1230	420	fShadows = 0.0;
1231
1232	420	fToneCurve = &dng_1d_identity::Get ();
1233
1234	420	}
1235
1236		// Use default tone curve from profile if any.
1237
1238	11.5k	const dng_camera_profile *profile = fNegative.ProfileByID (dng_camera_profile_id ());
1239
1240	11.5k	if (profile && profile->ToneCurve ().IsValid ())
1241	51	{
1242
1243	51	fProfileToneCurve.Reset (new dng_spline_solver);
1244
1245	51	profile->ToneCurve ().Solve (*fProfileToneCurve.Get ());
1246
1247	51	fToneCurve = fProfileToneCurve.Get ();
1248
1249	51	}
1250
1251		// Turn off default shadow mapping if requested by profile.
1252
1253	11.5k	if (profile && (profile->DefaultBlackRender () == defaultBlackRender_None))
1254	13	{
1255
1256	13	fShadows = 0.0;
1257
1258	13	}
1259
1260	11.5k	}
1261
1262		/*****************************************************************************/
1263
1264		dng_image * dng_render::Render ()
1265	11.5k	{
1266
1267	11.5k	const dng_image *srcImage = fNegative.Stage3Image ();
1268
1269	11.5k	dng_rect srcBounds = fNegative.DefaultCropArea ();
1270
1271	11.5k	dng_point dstSize;
1272
1273	11.5k	dstSize.h = fNegative.DefaultFinalWidth ();
1274	11.5k	dstSize.v = fNegative.DefaultFinalHeight ();
1275
1276	11.5k	if (MaximumSize ())
1277	7.89k	{
1278
1279	7.89k	if (Max_uint32 (dstSize.h, dstSize.v) > MaximumSize ())
1280	3.63k	{
1281
1282	3.63k	real64 ratio = fNegative.AspectRatio ();
1283
1284	3.63k	if (ratio >= 1.0)
1285	1.86k	{
1286	1.86k	dstSize.h = MaximumSize ();
1287	1.86k	dstSize.v = Max_uint32 (1, Round_uint32 (dstSize.h / ratio));
1288	1.86k	}
1289
1290	1.76k	else
1291	1.76k	{
1292	1.76k	dstSize.v = MaximumSize ();
1293	1.76k	dstSize.h = Max_uint32 (1, Round_uint32 (dstSize.v * ratio));
1294	1.76k	}
1295
1296	3.63k	}
1297
1298	7.89k	}
1299
1300	11.5k	AutoPtr<dng_image> tempImage;
1301
1302	11.5k	if (srcBounds.Size () != dstSize)
1303	4.52k	{
1304
1305	4.52k	tempImage.Reset (fHost.Make_dng_image (dstSize,
1306	4.52k	srcImage->Planes (),
1307	4.52k	srcImage->PixelType ()));
1308
1309	4.52k	ResampleImage (fHost,
1310	4.52k	*srcImage,
1311	4.52k	*tempImage.Get (),
1312	4.52k	srcBounds,
1313	4.52k	tempImage->Bounds (),
1314	4.52k	dng_resample_bicubic::Get ());
1315
1316	4.52k	srcImage = tempImage.Get ();
1317
1318	4.52k	srcBounds = tempImage->Bounds ();
1319
1320	4.52k	}
1321
1322	11.5k	uint32 dstPlanes = FinalSpace ().IsMonochrome () ? 1 : 3;
1323
1324	11.5k	AutoPtr<dng_image> dstImage (fHost.Make_dng_image (srcBounds.Size (),
1325	11.5k	dstPlanes,
1326	11.5k	FinalPixelType ()));
1327
1328	11.5k	dng_render_task task (*srcImage,
1329	11.5k	*dstImage.Get (),
1330	11.5k	fNegative,
1331	11.5k	*this,
1332	11.5k	srcBounds.TL ());
1333
1334	11.5k	fHost.PerformAreaTask (task,
1335	11.5k	dstImage->Bounds ());
1336
1337	11.5k	return dstImage.Release ();
1338
1339	11.5k	}
1340
1341		/*****************************************************************************/

Coverage Report

Created: 2026-07-25 06:54