/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	13.1k	: fSlope ((white == black) ? 0.0f : 1.0 / (white - black))
38	13.1k	, fBlack (black)
39
40	13.1k	, fRadius (0.0)
41	13.1k	, fQScale (0.0)
42
43	13.1k	{
44	13.1k	if (fSlope == 0.0)
45	25	{
46	25	ThrowBadFormat ();
47	25	}
48
49	13.1k	const real64 kMaxCurveX = 0.5; // Fraction of minBlack.
50
51	13.1k	const real64 kMaxCurveY = 1.0 / 16.0; // Fraction of white.
52
53	13.1k	fRadius = Min_real64 (kMaxCurveX * minBlack,
54	13.1k	kMaxCurveY / fSlope);
55
56	13.1k	if (fRadius > 0.0)
57	12.7k	fQScale= fSlope / (4.0 * fRadius);
58	319	else
59	319	fQScale = 0.0;
60
61	13.1k	}
62
63		/*****************************************************************************/
64
65		real64 dng_function_exposure_ramp::Evaluate (real64 x) const
66	53.6M	{
67
68	53.6M	if (x <= fBlack - fRadius)
69	139k	return 0.0;
70
71	53.4M	if (x >= fBlack + fRadius)
72	53.2M	return Min_real64 ((x - fBlack) * fSlope, 1.0);
73
74	251k	real64 y = x - (fBlack - fRadius);
75
76	251k	return fQScale * y * y;
77
78	53.4M	}
79
80		/*****************************************************************************/
81
82		dng_function_exposure_tone::dng_function_exposure_tone (real64 exposure)
83
84	13.0k	: fIsNOP (exposure >= 0.0)
85
86	13.0k	, fSlope (0.0)
87
88	13.0k	, a (0.0)
89	13.0k	, b (0.0)
90	13.0k	, c (0.0)
91
92	13.0k	{
93
94	13.0k	if (!fIsNOP)
95	138	{
96
97		// Find slope to use for the all except the highest two f-stops.
98
99	138	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	138	a = 16.0 / 9.0 * (1.0 - fSlope);
105
106	138	b = fSlope - 0.5 * a;
107
108	138	c = 1.0 - a - b;
109
110	138	}
111
112	13.0k	}
113
114		/*****************************************************************************/
115
116		real64 dng_function_exposure_tone::Evaluate (real64 x) const
117	53.6M	{
118
119	53.6M	if (!fIsNOP)
120	565k	{
121
122	565k	if (x <= 0.25)
123	141k	x = x * fSlope;
124
125	423k	else
126	423k	x = (a * x + b) * x + c;
127
128	565k	}
129
130	53.6M	return x;
131
132	53.6M	}
133
134		/*****************************************************************************/
135
136		real64 dng_tone_curve_acr3_default::Evaluate (real64 x) const
137	52.2M	{
138
139	52.2M	static const real32 kTable [] =
140	52.2M	{
141	52.2M	0.00000f, 0.00078f, 0.00160f, 0.00242f,
142	52.2M	0.00314f, 0.00385f, 0.00460f, 0.00539f,
143	52.2M	0.00623f, 0.00712f, 0.00806f, 0.00906f,
144	52.2M	0.01012f, 0.01122f, 0.01238f, 0.01359f,
145	52.2M	0.01485f, 0.01616f, 0.01751f, 0.01890f,
146	52.2M	0.02033f, 0.02180f, 0.02331f, 0.02485f,
147	52.2M	0.02643f, 0.02804f, 0.02967f, 0.03134f,
148	52.2M	0.03303f, 0.03475f, 0.03648f, 0.03824f,
149	52.2M	0.04002f, 0.04181f, 0.04362f, 0.04545f,
150	52.2M	0.04730f, 0.04916f, 0.05103f, 0.05292f,
151	52.2M	0.05483f, 0.05675f, 0.05868f, 0.06063f,
152	52.2M	0.06259f, 0.06457f, 0.06655f, 0.06856f,
153	52.2M	0.07057f, 0.07259f, 0.07463f, 0.07668f,
154	52.2M	0.07874f, 0.08081f, 0.08290f, 0.08499f,
155	52.2M	0.08710f, 0.08921f, 0.09134f, 0.09348f,
156	52.2M	0.09563f, 0.09779f, 0.09996f, 0.10214f,
157	52.2M	0.10433f, 0.10652f, 0.10873f, 0.11095f,
158	52.2M	0.11318f, 0.11541f, 0.11766f, 0.11991f,
159	52.2M	0.12218f, 0.12445f, 0.12673f, 0.12902f,
160	52.2M	0.13132f, 0.13363f, 0.13595f, 0.13827f,
161	52.2M	0.14061f, 0.14295f, 0.14530f, 0.14765f,
162	52.2M	0.15002f, 0.15239f, 0.15477f, 0.15716f,
163	52.2M	0.15956f, 0.16197f, 0.16438f, 0.16680f,
164	52.2M	0.16923f, 0.17166f, 0.17410f, 0.17655f,
165	52.2M	0.17901f, 0.18148f, 0.18395f, 0.18643f,
166	52.2M	0.18891f, 0.19141f, 0.19391f, 0.19641f,
167	52.2M	0.19893f, 0.20145f, 0.20398f, 0.20651f,
168	52.2M	0.20905f, 0.21160f, 0.21416f, 0.21672f,
169	52.2M	0.21929f, 0.22185f, 0.22440f, 0.22696f,
170	52.2M	0.22950f, 0.23204f, 0.23458f, 0.23711f,
171	52.2M	0.23963f, 0.24215f, 0.24466f, 0.24717f,
172	52.2M	0.24967f, 0.25216f, 0.25465f, 0.25713f,
173	52.2M	0.25961f, 0.26208f, 0.26454f, 0.26700f,
174	52.2M	0.26945f, 0.27189f, 0.27433f, 0.27676f,
175	52.2M	0.27918f, 0.28160f, 0.28401f, 0.28641f,
176	52.2M	0.28881f, 0.29120f, 0.29358f, 0.29596f,
177	52.2M	0.29833f, 0.30069f, 0.30305f, 0.30540f,
178	52.2M	0.30774f, 0.31008f, 0.31241f, 0.31473f,
179	52.2M	0.31704f, 0.31935f, 0.32165f, 0.32395f,
180	52.2M	0.32623f, 0.32851f, 0.33079f, 0.33305f,
181	52.2M	0.33531f, 0.33756f, 0.33981f, 0.34205f,
182	52.2M	0.34428f, 0.34650f, 0.34872f, 0.35093f,
183	52.2M	0.35313f, 0.35532f, 0.35751f, 0.35969f,
184	52.2M	0.36187f, 0.36404f, 0.36620f, 0.36835f,
185	52.2M	0.37050f, 0.37264f, 0.37477f, 0.37689f,
186	52.2M	0.37901f, 0.38112f, 0.38323f, 0.38533f,
187	52.2M	0.38742f, 0.38950f, 0.39158f, 0.39365f,
188	52.2M	0.39571f, 0.39777f, 0.39982f, 0.40186f,
189	52.2M	0.40389f, 0.40592f, 0.40794f, 0.40996f,
190	52.2M	0.41197f, 0.41397f, 0.41596f, 0.41795f,
191	52.2M	0.41993f, 0.42191f, 0.42388f, 0.42584f,
192	52.2M	0.42779f, 0.42974f, 0.43168f, 0.43362f,
193	52.2M	0.43554f, 0.43747f, 0.43938f, 0.44129f,
194	52.2M	0.44319f, 0.44509f, 0.44698f, 0.44886f,
195	52.2M	0.45073f, 0.45260f, 0.45447f, 0.45632f,
196	52.2M	0.45817f, 0.46002f, 0.46186f, 0.46369f,
197	52.2M	0.46551f, 0.46733f, 0.46914f, 0.47095f,
198	52.2M	0.47275f, 0.47454f, 0.47633f, 0.47811f,
199	52.2M	0.47989f, 0.48166f, 0.48342f, 0.48518f,
200	52.2M	0.48693f, 0.48867f, 0.49041f, 0.49214f,
201	52.2M	0.49387f, 0.49559f, 0.49730f, 0.49901f,
202	52.2M	0.50072f, 0.50241f, 0.50410f, 0.50579f,
203	52.2M	0.50747f, 0.50914f, 0.51081f, 0.51247f,
204	52.2M	0.51413f, 0.51578f, 0.51742f, 0.51906f,
205	52.2M	0.52069f, 0.52232f, 0.52394f, 0.52556f,
206	52.2M	0.52717f, 0.52878f, 0.53038f, 0.53197f,
207	52.2M	0.53356f, 0.53514f, 0.53672f, 0.53829f,
208	52.2M	0.53986f, 0.54142f, 0.54297f, 0.54452f,
209	52.2M	0.54607f, 0.54761f, 0.54914f, 0.55067f,
210	52.2M	0.55220f, 0.55371f, 0.55523f, 0.55673f,
211	52.2M	0.55824f, 0.55973f, 0.56123f, 0.56271f,
212	52.2M	0.56420f, 0.56567f, 0.56715f, 0.56861f,
213	52.2M	0.57007f, 0.57153f, 0.57298f, 0.57443f,
214	52.2M	0.57587f, 0.57731f, 0.57874f, 0.58017f,
215	52.2M	0.58159f, 0.58301f, 0.58443f, 0.58583f,
216	52.2M	0.58724f, 0.58864f, 0.59003f, 0.59142f,
217	52.2M	0.59281f, 0.59419f, 0.59556f, 0.59694f,
218	52.2M	0.59830f, 0.59966f, 0.60102f, 0.60238f,
219	52.2M	0.60373f, 0.60507f, 0.60641f, 0.60775f,
220	52.2M	0.60908f, 0.61040f, 0.61173f, 0.61305f,
221	52.2M	0.61436f, 0.61567f, 0.61698f, 0.61828f,
222	52.2M	0.61957f, 0.62087f, 0.62216f, 0.62344f,
223	52.2M	0.62472f, 0.62600f, 0.62727f, 0.62854f,
224	52.2M	0.62980f, 0.63106f, 0.63232f, 0.63357f,
225	52.2M	0.63482f, 0.63606f, 0.63730f, 0.63854f,
226	52.2M	0.63977f, 0.64100f, 0.64222f, 0.64344f,
227	52.2M	0.64466f, 0.64587f, 0.64708f, 0.64829f,
228	52.2M	0.64949f, 0.65069f, 0.65188f, 0.65307f,
229	52.2M	0.65426f, 0.65544f, 0.65662f, 0.65779f,
230	52.2M	0.65897f, 0.66013f, 0.66130f, 0.66246f,
231	52.2M	0.66362f, 0.66477f, 0.66592f, 0.66707f,
232	52.2M	0.66821f, 0.66935f, 0.67048f, 0.67162f,
233	52.2M	0.67275f, 0.67387f, 0.67499f, 0.67611f,
234	52.2M	0.67723f, 0.67834f, 0.67945f, 0.68055f,
235	52.2M	0.68165f, 0.68275f, 0.68385f, 0.68494f,
236	52.2M	0.68603f, 0.68711f, 0.68819f, 0.68927f,
237	52.2M	0.69035f, 0.69142f, 0.69249f, 0.69355f,
238	52.2M	0.69461f, 0.69567f, 0.69673f, 0.69778f,
239	52.2M	0.69883f, 0.69988f, 0.70092f, 0.70196f,
240	52.2M	0.70300f, 0.70403f, 0.70506f, 0.70609f,
241	52.2M	0.70711f, 0.70813f, 0.70915f, 0.71017f,
242	52.2M	0.71118f, 0.71219f, 0.71319f, 0.71420f,
243	52.2M	0.71520f, 0.71620f, 0.71719f, 0.71818f,
244	52.2M	0.71917f, 0.72016f, 0.72114f, 0.72212f,
245	52.2M	0.72309f, 0.72407f, 0.72504f, 0.72601f,
246	52.2M	0.72697f, 0.72794f, 0.72890f, 0.72985f,
247	52.2M	0.73081f, 0.73176f, 0.73271f, 0.73365f,
248	52.2M	0.73460f, 0.73554f, 0.73647f, 0.73741f,
249	52.2M	0.73834f, 0.73927f, 0.74020f, 0.74112f,
250	52.2M	0.74204f, 0.74296f, 0.74388f, 0.74479f,
251	52.2M	0.74570f, 0.74661f, 0.74751f, 0.74842f,
252	52.2M	0.74932f, 0.75021f, 0.75111f, 0.75200f,
253	52.2M	0.75289f, 0.75378f, 0.75466f, 0.75555f,
254	52.2M	0.75643f, 0.75730f, 0.75818f, 0.75905f,
255	52.2M	0.75992f, 0.76079f, 0.76165f, 0.76251f,
256	52.2M	0.76337f, 0.76423f, 0.76508f, 0.76594f,
257	52.2M	0.76679f, 0.76763f, 0.76848f, 0.76932f,
258	52.2M	0.77016f, 0.77100f, 0.77183f, 0.77267f,
259	52.2M	0.77350f, 0.77432f, 0.77515f, 0.77597f,
260	52.2M	0.77680f, 0.77761f, 0.77843f, 0.77924f,
261	52.2M	0.78006f, 0.78087f, 0.78167f, 0.78248f,
262	52.2M	0.78328f, 0.78408f, 0.78488f, 0.78568f,
263	52.2M	0.78647f, 0.78726f, 0.78805f, 0.78884f,
264	52.2M	0.78962f, 0.79040f, 0.79118f, 0.79196f,
265	52.2M	0.79274f, 0.79351f, 0.79428f, 0.79505f,
266	52.2M	0.79582f, 0.79658f, 0.79735f, 0.79811f,
267	52.2M	0.79887f, 0.79962f, 0.80038f, 0.80113f,
268	52.2M	0.80188f, 0.80263f, 0.80337f, 0.80412f,
269	52.2M	0.80486f, 0.80560f, 0.80634f, 0.80707f,
270	52.2M	0.80780f, 0.80854f, 0.80926f, 0.80999f,
271	52.2M	0.81072f, 0.81144f, 0.81216f, 0.81288f,
272	52.2M	0.81360f, 0.81431f, 0.81503f, 0.81574f,
273	52.2M	0.81645f, 0.81715f, 0.81786f, 0.81856f,
274	52.2M	0.81926f, 0.81996f, 0.82066f, 0.82135f,
275	52.2M	0.82205f, 0.82274f, 0.82343f, 0.82412f,
276	52.2M	0.82480f, 0.82549f, 0.82617f, 0.82685f,
277	52.2M	0.82753f, 0.82820f, 0.82888f, 0.82955f,
278	52.2M	0.83022f, 0.83089f, 0.83155f, 0.83222f,
279	52.2M	0.83288f, 0.83354f, 0.83420f, 0.83486f,
280	52.2M	0.83552f, 0.83617f, 0.83682f, 0.83747f,
281	52.2M	0.83812f, 0.83877f, 0.83941f, 0.84005f,
282	52.2M	0.84069f, 0.84133f, 0.84197f, 0.84261f,
283	52.2M	0.84324f, 0.84387f, 0.84450f, 0.84513f,
284	52.2M	0.84576f, 0.84639f, 0.84701f, 0.84763f,
285	52.2M	0.84825f, 0.84887f, 0.84949f, 0.85010f,
286	52.2M	0.85071f, 0.85132f, 0.85193f, 0.85254f,
287	52.2M	0.85315f, 0.85375f, 0.85436f, 0.85496f,
288	52.2M	0.85556f, 0.85615f, 0.85675f, 0.85735f,
289	52.2M	0.85794f, 0.85853f, 0.85912f, 0.85971f,
290	52.2M	0.86029f, 0.86088f, 0.86146f, 0.86204f,
291	52.2M	0.86262f, 0.86320f, 0.86378f, 0.86435f,
292	52.2M	0.86493f, 0.86550f, 0.86607f, 0.86664f,
293	52.2M	0.86720f, 0.86777f, 0.86833f, 0.86889f,
294	52.2M	0.86945f, 0.87001f, 0.87057f, 0.87113f,
295	52.2M	0.87168f, 0.87223f, 0.87278f, 0.87333f,
296	52.2M	0.87388f, 0.87443f, 0.87497f, 0.87552f,
297	52.2M	0.87606f, 0.87660f, 0.87714f, 0.87768f,
298	52.2M	0.87821f, 0.87875f, 0.87928f, 0.87981f,
299	52.2M	0.88034f, 0.88087f, 0.88140f, 0.88192f,
300	52.2M	0.88244f, 0.88297f, 0.88349f, 0.88401f,
301	52.2M	0.88453f, 0.88504f, 0.88556f, 0.88607f,
302	52.2M	0.88658f, 0.88709f, 0.88760f, 0.88811f,
303	52.2M	0.88862f, 0.88912f, 0.88963f, 0.89013f,
304	52.2M	0.89063f, 0.89113f, 0.89163f, 0.89212f,
305	52.2M	0.89262f, 0.89311f, 0.89360f, 0.89409f,
306	52.2M	0.89458f, 0.89507f, 0.89556f, 0.89604f,
307	52.2M	0.89653f, 0.89701f, 0.89749f, 0.89797f,
308	52.2M	0.89845f, 0.89892f, 0.89940f, 0.89987f,
309	52.2M	0.90035f, 0.90082f, 0.90129f, 0.90176f,
310	52.2M	0.90222f, 0.90269f, 0.90316f, 0.90362f,
311	52.2M	0.90408f, 0.90454f, 0.90500f, 0.90546f,
312	52.2M	0.90592f, 0.90637f, 0.90683f, 0.90728f,
313	52.2M	0.90773f, 0.90818f, 0.90863f, 0.90908f,
314	52.2M	0.90952f, 0.90997f, 0.91041f, 0.91085f,
315	52.2M	0.91130f, 0.91173f, 0.91217f, 0.91261f,
316	52.2M	0.91305f, 0.91348f, 0.91392f, 0.91435f,
317	52.2M	0.91478f, 0.91521f, 0.91564f, 0.91606f,
318	52.2M	0.91649f, 0.91691f, 0.91734f, 0.91776f,
319	52.2M	0.91818f, 0.91860f, 0.91902f, 0.91944f,
320	52.2M	0.91985f, 0.92027f, 0.92068f, 0.92109f,
321	52.2M	0.92150f, 0.92191f, 0.92232f, 0.92273f,
322	52.2M	0.92314f, 0.92354f, 0.92395f, 0.92435f,
323	52.2M	0.92475f, 0.92515f, 0.92555f, 0.92595f,
324	52.2M	0.92634f, 0.92674f, 0.92713f, 0.92753f,
325	52.2M	0.92792f, 0.92831f, 0.92870f, 0.92909f,
326	52.2M	0.92947f, 0.92986f, 0.93025f, 0.93063f,
327	52.2M	0.93101f, 0.93139f, 0.93177f, 0.93215f,
328	52.2M	0.93253f, 0.93291f, 0.93328f, 0.93366f,
329	52.2M	0.93403f, 0.93440f, 0.93478f, 0.93515f,
330	52.2M	0.93551f, 0.93588f, 0.93625f, 0.93661f,
331	52.2M	0.93698f, 0.93734f, 0.93770f, 0.93807f,
332	52.2M	0.93843f, 0.93878f, 0.93914f, 0.93950f,
333	52.2M	0.93986f, 0.94021f, 0.94056f, 0.94092f,
334	52.2M	0.94127f, 0.94162f, 0.94197f, 0.94231f,
335	52.2M	0.94266f, 0.94301f, 0.94335f, 0.94369f,
336	52.2M	0.94404f, 0.94438f, 0.94472f, 0.94506f,
337	52.2M	0.94540f, 0.94573f, 0.94607f, 0.94641f,
338	52.2M	0.94674f, 0.94707f, 0.94740f, 0.94774f,
339	52.2M	0.94807f, 0.94839f, 0.94872f, 0.94905f,
340	52.2M	0.94937f, 0.94970f, 0.95002f, 0.95035f,
341	52.2M	0.95067f, 0.95099f, 0.95131f, 0.95163f,
342	52.2M	0.95194f, 0.95226f, 0.95257f, 0.95289f,
343	52.2M	0.95320f, 0.95351f, 0.95383f, 0.95414f,
344	52.2M	0.95445f, 0.95475f, 0.95506f, 0.95537f,
345	52.2M	0.95567f, 0.95598f, 0.95628f, 0.95658f,
346	52.2M	0.95688f, 0.95718f, 0.95748f, 0.95778f,
347	52.2M	0.95808f, 0.95838f, 0.95867f, 0.95897f,
348	52.2M	0.95926f, 0.95955f, 0.95984f, 0.96013f,
349	52.2M	0.96042f, 0.96071f, 0.96100f, 0.96129f,
350	52.2M	0.96157f, 0.96186f, 0.96214f, 0.96242f,
351	52.2M	0.96271f, 0.96299f, 0.96327f, 0.96355f,
352	52.2M	0.96382f, 0.96410f, 0.96438f, 0.96465f,
353	52.2M	0.96493f, 0.96520f, 0.96547f, 0.96574f,
354	52.2M	0.96602f, 0.96629f, 0.96655f, 0.96682f,
355	52.2M	0.96709f, 0.96735f, 0.96762f, 0.96788f,
356	52.2M	0.96815f, 0.96841f, 0.96867f, 0.96893f,
357	52.2M	0.96919f, 0.96945f, 0.96971f, 0.96996f,
358	52.2M	0.97022f, 0.97047f, 0.97073f, 0.97098f,
359	52.2M	0.97123f, 0.97149f, 0.97174f, 0.97199f,
360	52.2M	0.97223f, 0.97248f, 0.97273f, 0.97297f,
361	52.2M	0.97322f, 0.97346f, 0.97371f, 0.97395f,
362	52.2M	0.97419f, 0.97443f, 0.97467f, 0.97491f,
363	52.2M	0.97515f, 0.97539f, 0.97562f, 0.97586f,
364	52.2M	0.97609f, 0.97633f, 0.97656f, 0.97679f,
365	52.2M	0.97702f, 0.97725f, 0.97748f, 0.97771f,
366	52.2M	0.97794f, 0.97817f, 0.97839f, 0.97862f,
367	52.2M	0.97884f, 0.97907f, 0.97929f, 0.97951f,
368	52.2M	0.97973f, 0.97995f, 0.98017f, 0.98039f,
369	52.2M	0.98061f, 0.98082f, 0.98104f, 0.98125f,
370	52.2M	0.98147f, 0.98168f, 0.98189f, 0.98211f,
371	52.2M	0.98232f, 0.98253f, 0.98274f, 0.98295f,
372	52.2M	0.98315f, 0.98336f, 0.98357f, 0.98377f,
373	52.2M	0.98398f, 0.98418f, 0.98438f, 0.98458f,
374	52.2M	0.98478f, 0.98498f, 0.98518f, 0.98538f,
375	52.2M	0.98558f, 0.98578f, 0.98597f, 0.98617f,
376	52.2M	0.98636f, 0.98656f, 0.98675f, 0.98694f,
377	52.2M	0.98714f, 0.98733f, 0.98752f, 0.98771f,
378	52.2M	0.98789f, 0.98808f, 0.98827f, 0.98845f,
379	52.2M	0.98864f, 0.98882f, 0.98901f, 0.98919f,
380	52.2M	0.98937f, 0.98955f, 0.98973f, 0.98991f,
381	52.2M	0.99009f, 0.99027f, 0.99045f, 0.99063f,
382	52.2M	0.99080f, 0.99098f, 0.99115f, 0.99133f,
383	52.2M	0.99150f, 0.99167f, 0.99184f, 0.99201f,
384	52.2M	0.99218f, 0.99235f, 0.99252f, 0.99269f,
385	52.2M	0.99285f, 0.99302f, 0.99319f, 0.99335f,
386	52.2M	0.99351f, 0.99368f, 0.99384f, 0.99400f,
387	52.2M	0.99416f, 0.99432f, 0.99448f, 0.99464f,
388	52.2M	0.99480f, 0.99495f, 0.99511f, 0.99527f,
389	52.2M	0.99542f, 0.99558f, 0.99573f, 0.99588f,
390	52.2M	0.99603f, 0.99619f, 0.99634f, 0.99649f,
391	52.2M	0.99664f, 0.99678f, 0.99693f, 0.99708f,
392	52.2M	0.99722f, 0.99737f, 0.99751f, 0.99766f,
393	52.2M	0.99780f, 0.99794f, 0.99809f, 0.99823f,
394	52.2M	0.99837f, 0.99851f, 0.99865f, 0.99879f,
395	52.2M	0.99892f, 0.99906f, 0.99920f, 0.99933f,
396	52.2M	0.99947f, 0.99960f, 0.99974f, 0.99987f,
397	52.2M	1.00000f
398	52.2M	};
399
400	52.2M	const uint32 kTableSize = sizeof (kTable ) /
401	52.2M	sizeof (kTable [0]);
402
403	52.2M	real32 y = (real32) x * (real32) (kTableSize - 1);
404
405	52.2M	int32 index = Pin_int32 (0, (int32) y, kTableSize - 2);
406
407	52.2M	real32 fract = y - (real32) index;
408
409	52.2M	return kTable [index ] * (1.0f - fract) +
410	52.2M	kTable [index + 1] * ( fract);
411
412	52.2M	}
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	13.8k	{
698
699	13.8k	static dng_tone_curve_acr3_default static_dng_tone_curve_acr3_default;
700
701	13.8k	return static_dng_tone_curve_acr3_default;
702
703	13.8k	}
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	13.1k	: dng_filter_task (srcImage,
771	13.1k	dstImage)
772
773	13.1k	, fNegative (negative )
774	13.1k	, fParams (params )
775	13.1k	, fSrcOffset (srcOffset)
776
777	13.1k	, fCameraWhite ()
778	13.1k	, fCameraToRGB ()
779
780	13.1k	, fHueSatMap ()
781
782	13.1k	, fExposureRamp ()
783
784	13.1k	, fLookTable ()
785
786	13.1k	, fToneCurve ()
787
788	13.1k	, fRGBtoFinal ()
789
790	13.1k	, fEncodeGamma ()
791
792	13.1k	, fHueSatMapEncode ()
793	13.1k	, fHueSatMapDecode ()
794
795	13.1k	, fLookTableEncode ()
796	13.1k	, fLookTableDecode ()
797
798	13.1k	{
799
800	13.1k	fSrcPixelType = ttFloat;
801	13.1k	fDstPixelType = ttFloat;
802
803	13.1k	}
804
805		/*****************************************************************************/
806
807		dng_rect dng_render_task::SrcArea (const dng_rect &dstArea)
808	997k	{
809
810	997k	return dstArea + fSrcOffset;
811
812	997k	}
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	13.1k	{
821
822	13.1k	dng_filter_task::Start (threadCount,
823	13.1k	tileSize,
824	13.1k	allocator,
825	13.1k	sniffer);
826
827		// Compute camera space to linear ProPhoto RGB parameters.
828
829	13.1k	dng_camera_profile_id profileID; // Default profile ID.
830
831	13.1k	if (!fNegative.IsMonochrome ())
832	2.59k	{
833
834	2.59k	AutoPtr<dng_color_spec> spec (fNegative.MakeColorSpec (profileID));
835
836	2.59k	if (fParams.WhiteXY ().IsValid ())
837	0	{
838
839	0	spec->SetWhiteXY (fParams.WhiteXY ());
840
841	0	}
842
843	2.59k	else if (fNegative.HasCameraNeutral ())
844	250	{
845
846	250	spec->SetWhiteXY (spec->NeutralToXY (fNegative.CameraNeutral ()));
847
848	250	}
849
850	2.34k	else if (fNegative.HasCameraWhiteXY ())
851	249	{
852
853	249	spec->SetWhiteXY (fNegative.CameraWhiteXY ());
854
855	249	}
856
857	2.09k	else
858	2.09k	{
859
860	2.09k	spec->SetWhiteXY (D55_xy_coord ());
861
862	2.09k	}
863
864	2.59k	fCameraWhite = spec->CameraWhite ();
865
866	2.59k	fCameraToRGB = dng_space_ProPhoto::Get ().MatrixFromPCS () *
867	2.59k	spec->CameraToPCS ();
868
869		// Find Hue/Sat table, if any.
870
871	2.59k	const dng_camera_profile *profile = fNegative.ProfileByID (profileID);
872
873	2.59k	if (profile)
874	2.54k	{
875
876	2.54k	fHueSatMap.Reset (profile->HueSatMapForWhite (spec->WhiteXY ()));
877
878	2.54k	if (profile->HasLookTable ())
879	0	{
880
881	0	fLookTable.Reset (new dng_hue_sat_map (profile->LookTable ()));
882
883	0	}
884
885	2.54k	if (profile->HueSatMapEncoding () != encoding_Linear)
886	32	{
887
888	32	BuildHueSatMapEncodingTable (*allocator,
889	32	profile->HueSatMapEncoding (),
890	32	fHueSatMapEncode,
891	32	fHueSatMapDecode,
892	32	false);
893
894	32	}
895
896	2.54k	if (profile->LookTableEncoding () != encoding_Linear)
897	101	{
898
899	101	BuildHueSatMapEncodingTable (*allocator,
900	101	profile->LookTableEncoding (),
901	101	fLookTableEncode,
902	101	fLookTableDecode,
903	101	false);
904
905	101	}
906
907	2.54k	}
908
909	2.59k	}
910
911		// Compute exposure/shadows ramp.
912
913	13.1k	real64 exposure = fParams.Exposure () +
914	13.1k	fNegative.TotalBaselineExposure (profileID) -
915	13.1k	(log (fNegative.Stage3Gain ()) / log (2.0));
916
917	13.1k	{
918
919	13.1k	real64 white = 1.0 / pow (2.0, Max_real64 (0.0, exposure));
920
921	13.1k	real64 black = fParams.Shadows () *
922	13.1k	fNegative.ShadowScale () *
923	13.1k	fNegative.Stage3Gain () *
924	13.1k	0.001;
925
926	13.1k	black = Min_real64 (black, 0.99 * white);
927
928	13.1k	dng_function_exposure_ramp rampFunction (white,
929	13.1k	black,
930	13.1k	black);
931
932	13.1k	fExposureRamp.Initialize (*allocator, rampFunction);
933
934	13.1k	}
935
936		// Compute tone curve.
937
938	13.1k	{
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	13.1k	dng_function_exposure_tone exposureTone (exposure);
945
946	13.1k	dng_1d_concatenate totalTone (exposureTone,
947	13.1k	fParams.ToneCurve ());
948
949	13.1k	fToneCurve.Initialize (*allocator, totalTone);
950
951	13.1k	}
952
953		// Compute linear ProPhoto RGB to final space parameters.
954
955	13.1k	{
956
957	13.1k	const dng_color_space &finalSpace = fParams.FinalSpace ();
958
959	13.1k	fRGBtoFinal = finalSpace.MatrixFromPCS () *
960	13.1k	dng_space_ProPhoto::Get ().MatrixToPCS ();
961
962	13.1k	fEncodeGamma.Initialize (*allocator, finalSpace.GammaFunction ());
963
964	13.1k	}
965
966		// Allocate temp buffer to hold one row of RGB data.
967
968	13.1k	uint32 tempBufferSize = 0;
969
970	13.1k	if (!SafeUint32Mult (tileSize.h, (uint32) sizeof (real32), &tempBufferSize) \|\|
971	13.0k	!SafeUint32Mult (tempBufferSize, 3, &tempBufferSize))
972	0	{
973
974	0	ThrowMemoryFull("Arithmetic overflow computing buffer size.");
975
976	0	}
977
978	26.2k	for (uint32 threadIndex = 0; threadIndex < threadCount; threadIndex++)
979	13.0k	{
980
981	13.0k	fTempBuffer [threadIndex] . Reset (allocator->Allocate (tempBufferSize));
982
983	13.0k	}
984
985	13.1k	}
986
987		/*****************************************************************************/
988
989		void dng_render_task::ProcessArea (uint32 threadIndex,
990		dng_pixel_buffer &srcBuffer,
991		dng_pixel_buffer &dstBuffer)
992	984k	{
993
994	984k	dng_rect srcArea = srcBuffer.fArea;
995	984k	dng_rect dstArea = dstBuffer.fArea;
996
997	984k	uint32 srcCols = srcArea.W ();
998
999	984k	real32 *tPtrR = fTempBuffer [threadIndex]->Buffer_real32 ();
1000
1001	984k	real32 *tPtrG = tPtrR + srcCols;
1002	984k	real32 *tPtrB = tPtrG + srcCols;
1003
1004	60.6M	for (int32 srcRow = srcArea.t; srcRow < srcArea.b; srcRow++)
1005	59.7M	{
1006
1007		// First convert from camera native space to linear PhotoRGB,
1008		// applying the white balance and camera profile.
1009
1010	59.7M	{
1011
1012	59.7M	const real32 sPtrA = (const real32 )
1013	59.7M	srcBuffer.ConstPixel (srcRow,
1014	59.7M	srcArea.l,
1015	59.7M	0);
1016
1017	59.7M	if (fSrcPlanes == 1)
1018	59.1M	{
1019
1020		// For monochrome cameras, this just requires copying
1021		// the data into all three color channels.
1022
1023	59.1M	DoCopyBytes (sPtrA, tPtrR, srcCols * (uint32) sizeof (real32));
1024	59.1M	DoCopyBytes (sPtrA, tPtrG, srcCols * (uint32) sizeof (real32));
1025	59.1M	DoCopyBytes (sPtrA, tPtrB, srcCols * (uint32) sizeof (real32));
1026
1027	59.1M	}
1028
1029	548k	else
1030	548k	{
1031
1032	548k	const real32 *sPtrB = sPtrA + srcBuffer.fPlaneStep;
1033	548k	const real32 *sPtrC = sPtrB + srcBuffer.fPlaneStep;
1034
1035	548k	if (fSrcPlanes == 3)
1036	413k	{
1037
1038	413k	DoBaselineABCtoRGB (sPtrA,
1039	413k	sPtrB,
1040	413k	sPtrC,
1041	413k	tPtrR,
1042	413k	tPtrG,
1043	413k	tPtrB,
1044	413k	srcCols,
1045	413k	fCameraWhite,
1046	413k	fCameraToRGB);
1047
1048	413k	}
1049
1050	134k	else
1051	134k	{
1052
1053	134k	const real32 *sPtrD = sPtrC + srcBuffer.fPlaneStep;
1054
1055	134k	DoBaselineABCDtoRGB (sPtrA,
1056	134k	sPtrB,
1057	134k	sPtrC,
1058	134k	sPtrD,
1059	134k	tPtrR,
1060	134k	tPtrG,
1061	134k	tPtrB,
1062	134k	srcCols,
1063	134k	fCameraWhite,
1064	134k	fCameraToRGB);
1065
1066	134k	}
1067
1068		// Apply Hue/Sat map, if any.
1069
1070	548k	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	548k	}
1087
1088	59.7M	}
1089
1090		// Apply exposure curve.
1091
1092	59.7M	DoBaseline1DTable (tPtrR,
1093	59.7M	tPtrR,
1094	59.7M	srcCols,
1095	59.7M	fExposureRamp);
1096
1097	59.7M	DoBaseline1DTable (tPtrG,
1098	59.7M	tPtrG,
1099	59.7M	srcCols,
1100	59.7M	fExposureRamp);
1101
1102	59.7M	DoBaseline1DTable (tPtrB,
1103	59.7M	tPtrB,
1104	59.7M	srcCols,
1105	59.7M	fExposureRamp);
1106
1107		// Apply look table, if any.
1108
1109	59.7M	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	59.7M	DoBaselineRGBTone (tPtrR,
1128	59.7M	tPtrG,
1129	59.7M	tPtrB,
1130	59.7M	tPtrR,
1131	59.7M	tPtrG,
1132	59.7M	tPtrB,
1133	59.7M	srcCols,
1134	59.7M	fToneCurve);
1135
1136		// Convert to final color space.
1137
1138	59.7M	int32 dstRow = srcRow + (dstArea.t - srcArea.t);
1139
1140	59.7M	if (fDstPlanes == 1)
1141	8.73M	{
1142
1143	8.73M	real32 *dPtrG = dstBuffer.DirtyPixel_real32 (dstRow,
1144	8.73M	dstArea.l,
1145	8.73M	0);
1146
1147	8.73M	DoBaselineRGBtoGray (tPtrR,
1148	8.73M	tPtrG,
1149	8.73M	tPtrB,
1150	8.73M	dPtrG,
1151	8.73M	srcCols,
1152	8.73M	fRGBtoFinal);
1153
1154	8.73M	DoBaseline1DTable (dPtrG,
1155	8.73M	dPtrG,
1156	8.73M	srcCols,
1157	8.73M	fEncodeGamma);
1158
1159	8.73M	}
1160
1161	50.9M	else
1162	50.9M	{
1163
1164	50.9M	real32 *dPtrR = dstBuffer.DirtyPixel_real32 (dstRow,
1165	50.9M	dstArea.l,
1166	50.9M	0);
1167
1168	50.9M	real32 *dPtrG = dPtrR + dstBuffer.fPlaneStep;
1169	50.9M	real32 *dPtrB = dPtrG + dstBuffer.fPlaneStep;
1170
1171	50.9M	DoBaselineRGBtoRGB (tPtrR,
1172	50.9M	tPtrG,
1173	50.9M	tPtrB,
1174	50.9M	dPtrR,
1175	50.9M	dPtrG,
1176	50.9M	dPtrB,
1177	50.9M	srcCols,
1178	50.9M	fRGBtoFinal);
1179
1180	50.9M	DoBaseline1DTable (dPtrR,
1181	50.9M	dPtrR,
1182	50.9M	srcCols,
1183	50.9M	fEncodeGamma);
1184
1185	50.9M	DoBaseline1DTable (dPtrG,
1186	50.9M	dPtrG,
1187	50.9M	srcCols,
1188	50.9M	fEncodeGamma);
1189
1190	50.9M	DoBaseline1DTable (dPtrB,
1191	50.9M	dPtrB,
1192	50.9M	srcCols,
1193	50.9M	fEncodeGamma);
1194
1195	50.9M	}
1196
1197	59.7M	}
1198
1199	984k	}
1200
1201		/*****************************************************************************/
1202
1203		dng_render::dng_render (dng_host &host,
1204		const dng_negative &negative)
1205
1206	13.8k	: fHost (host)
1207	13.8k	, fNegative (negative)
1208
1209	13.8k	, fWhiteXY ()
1210
1211	13.8k	, fExposure (0.0)
1212	13.8k	, fShadows (5.0)
1213
1214	13.8k	, fToneCurve (&dng_tone_curve_acr3_default::Get ())
1215
1216	13.8k	, fFinalSpace (&dng_space_sRGB::Get ())
1217	13.8k	, fFinalPixelType (ttByte)
1218
1219	13.8k	, fMaximumSize (0)
1220
1221	13.8k	, fProfileToneCurve ()
1222
1223	13.8k	{
1224
1225		// Switch to NOP default parameters for non-scene referred data.
1226
1227	13.8k	if (fNegative.ColorimetricReference () != crSceneReferred)
1228	300	{
1229
1230	300	fShadows = 0.0;
1231
1232	300	fToneCurve = &dng_1d_identity::Get ();
1233
1234	300	}
1235
1236		// Use default tone curve from profile if any.
1237
1238	13.8k	const dng_camera_profile *profile = fNegative.ProfileByID (dng_camera_profile_id ());
1239
1240	13.8k	if (profile && profile->ToneCurve ().IsValid ())
1241	53	{
1242
1243	53	fProfileToneCurve.Reset (new dng_spline_solver);
1244
1245	53	profile->ToneCurve ().Solve (*fProfileToneCurve.Get ());
1246
1247	53	fToneCurve = fProfileToneCurve.Get ();
1248
1249	53	}
1250
1251		// Turn off default shadow mapping if requested by profile.
1252
1253	13.8k	if (profile && (profile->DefaultBlackRender () == defaultBlackRender_None))
1254	16	{
1255
1256	16	fShadows = 0.0;
1257
1258	16	}
1259
1260	13.8k	}
1261
1262		/*****************************************************************************/
1263
1264		dng_image * dng_render::Render ()
1265	13.8k	{
1266
1267	13.8k	const dng_image *srcImage = fNegative.Stage3Image ();
1268
1269	13.8k	dng_rect srcBounds = fNegative.DefaultCropArea ();
1270
1271	13.8k	dng_point dstSize;
1272
1273	13.8k	dstSize.h = fNegative.DefaultFinalWidth ();
1274	13.8k	dstSize.v = fNegative.DefaultFinalHeight ();
1275
1276	13.8k	if (MaximumSize ())
1277	9.62k	{
1278
1279	9.62k	if (Max_uint32 (dstSize.h, dstSize.v) > MaximumSize ())
1280	4.33k	{
1281
1282	4.33k	real64 ratio = fNegative.AspectRatio ();
1283
1284	4.33k	if (ratio >= 1.0)
1285	2.09k	{
1286	2.09k	dstSize.h = MaximumSize ();
1287	2.09k	dstSize.v = Max_uint32 (1, Round_uint32 (dstSize.h / ratio));
1288	2.09k	}
1289
1290	2.23k	else
1291	2.23k	{
1292	2.23k	dstSize.v = MaximumSize ();
1293	2.23k	dstSize.h = Max_uint32 (1, Round_uint32 (dstSize.v * ratio));
1294	2.23k	}
1295
1296	4.33k	}
1297
1298	9.62k	}
1299
1300	13.8k	AutoPtr<dng_image> tempImage;
1301
1302	13.8k	if (srcBounds.Size () != dstSize)
1303	5.40k	{
1304
1305	5.40k	tempImage.Reset (fHost.Make_dng_image (dstSize,
1306	5.40k	srcImage->Planes (),
1307	5.40k	srcImage->PixelType ()));
1308
1309	5.40k	ResampleImage (fHost,
1310	5.40k	*srcImage,
1311	5.40k	*tempImage.Get (),
1312	5.40k	srcBounds,
1313	5.40k	tempImage->Bounds (),
1314	5.40k	dng_resample_bicubic::Get ());
1315
1316	5.40k	srcImage = tempImage.Get ();
1317
1318	5.40k	srcBounds = tempImage->Bounds ();
1319
1320	5.40k	}
1321
1322	13.8k	uint32 dstPlanes = FinalSpace ().IsMonochrome () ? 1 : 3;
1323
1324	13.8k	AutoPtr<dng_image> dstImage (fHost.Make_dng_image (srcBounds.Size (),
1325	13.8k	dstPlanes,
1326	13.8k	FinalPixelType ()));
1327
1328	13.8k	dng_render_task task (*srcImage,
1329	13.8k	*dstImage.Get (),
1330	13.8k	fNegative,
1331	13.8k	*this,
1332	13.8k	srcBounds.TL ());
1333
1334	13.8k	fHost.PerformAreaTask (task,
1335	13.8k	dstImage->Bounds ());
1336
1337	13.8k	return dstImage.Release ();
1338
1339	13.8k	}
1340
1341		/*****************************************************************************/

Coverage Report

Created: 2025-10-10 07:04