/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	6.19k	: fSlope ((white == black) ? 0.0f : 1.0 / (white - black))
38	6.19k	, fBlack (black)
39
40	6.19k	, fRadius (0.0)
41	6.19k	, fQScale (0.0)
42
43	6.19k	{
44	6.19k	if (fSlope == 0.0)
45	22	{
46	22	ThrowBadFormat ();
47	22	}
48
49	6.19k	const real64 kMaxCurveX = 0.5; // Fraction of minBlack.
50
51	6.19k	const real64 kMaxCurveY = 1.0 / 16.0; // Fraction of white.
52
53	6.19k	fRadius = Min_real64 (kMaxCurveX * minBlack,
54	6.19k	kMaxCurveY / fSlope);
55
56	6.19k	if (fRadius > 0.0)
57	5.87k	fQScale= fSlope / (4.0 * fRadius);
58	320	else
59	320	fQScale = 0.0;
60
61	6.19k	}
62
63		/*****************************************************************************/
64
65		real64 dng_function_exposure_ramp::Evaluate (real64 x) const
66	25.3M	{
67
68	25.3M	if (x <= fBlack - fRadius)
69	63.4k	return 0.0;
70
71	25.2M	if (x >= fBlack + fRadius)
72	25.1M	return Min_real64 ((x - fBlack) * fSlope, 1.0);
73
74	114k	real64 y = x - (fBlack - fRadius);
75
76	114k	return fQScale * y * y;
77
78	25.2M	}
79
80		/*****************************************************************************/
81
82		dng_function_exposure_tone::dng_function_exposure_tone (real64 exposure)
83
84	6.17k	: fIsNOP (exposure >= 0.0)
85
86	6.17k	, fSlope (0.0)
87
88	6.17k	, a (0.0)
89	6.17k	, b (0.0)
90	6.17k	, c (0.0)
91
92	6.17k	{
93
94	6.17k	if (!fIsNOP)
95	50	{
96
97		// Find slope to use for the all except the highest two f-stops.
98
99	50	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	50	a = 16.0 / 9.0 * (1.0 - fSlope);
105
106	50	b = fSlope - 0.5 * a;
107
108	50	c = 1.0 - a - b;
109
110	50	}
111
112	6.17k	}
113
114		/*****************************************************************************/
115
116		real64 dng_function_exposure_tone::Evaluate (real64 x) const
117	25.3M	{
118
119	25.3M	if (!fIsNOP)
120	204k	{
121
122	204k	if (x <= 0.25)
123	51.2k	x = x * fSlope;
124
125	153k	else
126	153k	x = (a * x + b) * x + c;
127
128	204k	}
129
130	25.3M	return x;
131
132	25.3M	}
133
134		/*****************************************************************************/
135
136		real64 dng_tone_curve_acr3_default::Evaluate (real64 x) const
137	24.0M	{
138
139	24.0M	static const real32 kTable [] =
140	24.0M	{
141	24.0M	0.00000f, 0.00078f, 0.00160f, 0.00242f,
142	24.0M	0.00314f, 0.00385f, 0.00460f, 0.00539f,
143	24.0M	0.00623f, 0.00712f, 0.00806f, 0.00906f,
144	24.0M	0.01012f, 0.01122f, 0.01238f, 0.01359f,
145	24.0M	0.01485f, 0.01616f, 0.01751f, 0.01890f,
146	24.0M	0.02033f, 0.02180f, 0.02331f, 0.02485f,
147	24.0M	0.02643f, 0.02804f, 0.02967f, 0.03134f,
148	24.0M	0.03303f, 0.03475f, 0.03648f, 0.03824f,
149	24.0M	0.04002f, 0.04181f, 0.04362f, 0.04545f,
150	24.0M	0.04730f, 0.04916f, 0.05103f, 0.05292f,
151	24.0M	0.05483f, 0.05675f, 0.05868f, 0.06063f,
152	24.0M	0.06259f, 0.06457f, 0.06655f, 0.06856f,
153	24.0M	0.07057f, 0.07259f, 0.07463f, 0.07668f,
154	24.0M	0.07874f, 0.08081f, 0.08290f, 0.08499f,
155	24.0M	0.08710f, 0.08921f, 0.09134f, 0.09348f,
156	24.0M	0.09563f, 0.09779f, 0.09996f, 0.10214f,
157	24.0M	0.10433f, 0.10652f, 0.10873f, 0.11095f,
158	24.0M	0.11318f, 0.11541f, 0.11766f, 0.11991f,
159	24.0M	0.12218f, 0.12445f, 0.12673f, 0.12902f,
160	24.0M	0.13132f, 0.13363f, 0.13595f, 0.13827f,
161	24.0M	0.14061f, 0.14295f, 0.14530f, 0.14765f,
162	24.0M	0.15002f, 0.15239f, 0.15477f, 0.15716f,
163	24.0M	0.15956f, 0.16197f, 0.16438f, 0.16680f,
164	24.0M	0.16923f, 0.17166f, 0.17410f, 0.17655f,
165	24.0M	0.17901f, 0.18148f, 0.18395f, 0.18643f,
166	24.0M	0.18891f, 0.19141f, 0.19391f, 0.19641f,
167	24.0M	0.19893f, 0.20145f, 0.20398f, 0.20651f,
168	24.0M	0.20905f, 0.21160f, 0.21416f, 0.21672f,
169	24.0M	0.21929f, 0.22185f, 0.22440f, 0.22696f,
170	24.0M	0.22950f, 0.23204f, 0.23458f, 0.23711f,
171	24.0M	0.23963f, 0.24215f, 0.24466f, 0.24717f,
172	24.0M	0.24967f, 0.25216f, 0.25465f, 0.25713f,
173	24.0M	0.25961f, 0.26208f, 0.26454f, 0.26700f,
174	24.0M	0.26945f, 0.27189f, 0.27433f, 0.27676f,
175	24.0M	0.27918f, 0.28160f, 0.28401f, 0.28641f,
176	24.0M	0.28881f, 0.29120f, 0.29358f, 0.29596f,
177	24.0M	0.29833f, 0.30069f, 0.30305f, 0.30540f,
178	24.0M	0.30774f, 0.31008f, 0.31241f, 0.31473f,
179	24.0M	0.31704f, 0.31935f, 0.32165f, 0.32395f,
180	24.0M	0.32623f, 0.32851f, 0.33079f, 0.33305f,
181	24.0M	0.33531f, 0.33756f, 0.33981f, 0.34205f,
182	24.0M	0.34428f, 0.34650f, 0.34872f, 0.35093f,
183	24.0M	0.35313f, 0.35532f, 0.35751f, 0.35969f,
184	24.0M	0.36187f, 0.36404f, 0.36620f, 0.36835f,
185	24.0M	0.37050f, 0.37264f, 0.37477f, 0.37689f,
186	24.0M	0.37901f, 0.38112f, 0.38323f, 0.38533f,
187	24.0M	0.38742f, 0.38950f, 0.39158f, 0.39365f,
188	24.0M	0.39571f, 0.39777f, 0.39982f, 0.40186f,
189	24.0M	0.40389f, 0.40592f, 0.40794f, 0.40996f,
190	24.0M	0.41197f, 0.41397f, 0.41596f, 0.41795f,
191	24.0M	0.41993f, 0.42191f, 0.42388f, 0.42584f,
192	24.0M	0.42779f, 0.42974f, 0.43168f, 0.43362f,
193	24.0M	0.43554f, 0.43747f, 0.43938f, 0.44129f,
194	24.0M	0.44319f, 0.44509f, 0.44698f, 0.44886f,
195	24.0M	0.45073f, 0.45260f, 0.45447f, 0.45632f,
196	24.0M	0.45817f, 0.46002f, 0.46186f, 0.46369f,
197	24.0M	0.46551f, 0.46733f, 0.46914f, 0.47095f,
198	24.0M	0.47275f, 0.47454f, 0.47633f, 0.47811f,
199	24.0M	0.47989f, 0.48166f, 0.48342f, 0.48518f,
200	24.0M	0.48693f, 0.48867f, 0.49041f, 0.49214f,
201	24.0M	0.49387f, 0.49559f, 0.49730f, 0.49901f,
202	24.0M	0.50072f, 0.50241f, 0.50410f, 0.50579f,
203	24.0M	0.50747f, 0.50914f, 0.51081f, 0.51247f,
204	24.0M	0.51413f, 0.51578f, 0.51742f, 0.51906f,
205	24.0M	0.52069f, 0.52232f, 0.52394f, 0.52556f,
206	24.0M	0.52717f, 0.52878f, 0.53038f, 0.53197f,
207	24.0M	0.53356f, 0.53514f, 0.53672f, 0.53829f,
208	24.0M	0.53986f, 0.54142f, 0.54297f, 0.54452f,
209	24.0M	0.54607f, 0.54761f, 0.54914f, 0.55067f,
210	24.0M	0.55220f, 0.55371f, 0.55523f, 0.55673f,
211	24.0M	0.55824f, 0.55973f, 0.56123f, 0.56271f,
212	24.0M	0.56420f, 0.56567f, 0.56715f, 0.56861f,
213	24.0M	0.57007f, 0.57153f, 0.57298f, 0.57443f,
214	24.0M	0.57587f, 0.57731f, 0.57874f, 0.58017f,
215	24.0M	0.58159f, 0.58301f, 0.58443f, 0.58583f,
216	24.0M	0.58724f, 0.58864f, 0.59003f, 0.59142f,
217	24.0M	0.59281f, 0.59419f, 0.59556f, 0.59694f,
218	24.0M	0.59830f, 0.59966f, 0.60102f, 0.60238f,
219	24.0M	0.60373f, 0.60507f, 0.60641f, 0.60775f,
220	24.0M	0.60908f, 0.61040f, 0.61173f, 0.61305f,
221	24.0M	0.61436f, 0.61567f, 0.61698f, 0.61828f,
222	24.0M	0.61957f, 0.62087f, 0.62216f, 0.62344f,
223	24.0M	0.62472f, 0.62600f, 0.62727f, 0.62854f,
224	24.0M	0.62980f, 0.63106f, 0.63232f, 0.63357f,
225	24.0M	0.63482f, 0.63606f, 0.63730f, 0.63854f,
226	24.0M	0.63977f, 0.64100f, 0.64222f, 0.64344f,
227	24.0M	0.64466f, 0.64587f, 0.64708f, 0.64829f,
228	24.0M	0.64949f, 0.65069f, 0.65188f, 0.65307f,
229	24.0M	0.65426f, 0.65544f, 0.65662f, 0.65779f,
230	24.0M	0.65897f, 0.66013f, 0.66130f, 0.66246f,
231	24.0M	0.66362f, 0.66477f, 0.66592f, 0.66707f,
232	24.0M	0.66821f, 0.66935f, 0.67048f, 0.67162f,
233	24.0M	0.67275f, 0.67387f, 0.67499f, 0.67611f,
234	24.0M	0.67723f, 0.67834f, 0.67945f, 0.68055f,
235	24.0M	0.68165f, 0.68275f, 0.68385f, 0.68494f,
236	24.0M	0.68603f, 0.68711f, 0.68819f, 0.68927f,
237	24.0M	0.69035f, 0.69142f, 0.69249f, 0.69355f,
238	24.0M	0.69461f, 0.69567f, 0.69673f, 0.69778f,
239	24.0M	0.69883f, 0.69988f, 0.70092f, 0.70196f,
240	24.0M	0.70300f, 0.70403f, 0.70506f, 0.70609f,
241	24.0M	0.70711f, 0.70813f, 0.70915f, 0.71017f,
242	24.0M	0.71118f, 0.71219f, 0.71319f, 0.71420f,
243	24.0M	0.71520f, 0.71620f, 0.71719f, 0.71818f,
244	24.0M	0.71917f, 0.72016f, 0.72114f, 0.72212f,
245	24.0M	0.72309f, 0.72407f, 0.72504f, 0.72601f,
246	24.0M	0.72697f, 0.72794f, 0.72890f, 0.72985f,
247	24.0M	0.73081f, 0.73176f, 0.73271f, 0.73365f,
248	24.0M	0.73460f, 0.73554f, 0.73647f, 0.73741f,
249	24.0M	0.73834f, 0.73927f, 0.74020f, 0.74112f,
250	24.0M	0.74204f, 0.74296f, 0.74388f, 0.74479f,
251	24.0M	0.74570f, 0.74661f, 0.74751f, 0.74842f,
252	24.0M	0.74932f, 0.75021f, 0.75111f, 0.75200f,
253	24.0M	0.75289f, 0.75378f, 0.75466f, 0.75555f,
254	24.0M	0.75643f, 0.75730f, 0.75818f, 0.75905f,
255	24.0M	0.75992f, 0.76079f, 0.76165f, 0.76251f,
256	24.0M	0.76337f, 0.76423f, 0.76508f, 0.76594f,
257	24.0M	0.76679f, 0.76763f, 0.76848f, 0.76932f,
258	24.0M	0.77016f, 0.77100f, 0.77183f, 0.77267f,
259	24.0M	0.77350f, 0.77432f, 0.77515f, 0.77597f,
260	24.0M	0.77680f, 0.77761f, 0.77843f, 0.77924f,
261	24.0M	0.78006f, 0.78087f, 0.78167f, 0.78248f,
262	24.0M	0.78328f, 0.78408f, 0.78488f, 0.78568f,
263	24.0M	0.78647f, 0.78726f, 0.78805f, 0.78884f,
264	24.0M	0.78962f, 0.79040f, 0.79118f, 0.79196f,
265	24.0M	0.79274f, 0.79351f, 0.79428f, 0.79505f,
266	24.0M	0.79582f, 0.79658f, 0.79735f, 0.79811f,
267	24.0M	0.79887f, 0.79962f, 0.80038f, 0.80113f,
268	24.0M	0.80188f, 0.80263f, 0.80337f, 0.80412f,
269	24.0M	0.80486f, 0.80560f, 0.80634f, 0.80707f,
270	24.0M	0.80780f, 0.80854f, 0.80926f, 0.80999f,
271	24.0M	0.81072f, 0.81144f, 0.81216f, 0.81288f,
272	24.0M	0.81360f, 0.81431f, 0.81503f, 0.81574f,
273	24.0M	0.81645f, 0.81715f, 0.81786f, 0.81856f,
274	24.0M	0.81926f, 0.81996f, 0.82066f, 0.82135f,
275	24.0M	0.82205f, 0.82274f, 0.82343f, 0.82412f,
276	24.0M	0.82480f, 0.82549f, 0.82617f, 0.82685f,
277	24.0M	0.82753f, 0.82820f, 0.82888f, 0.82955f,
278	24.0M	0.83022f, 0.83089f, 0.83155f, 0.83222f,
279	24.0M	0.83288f, 0.83354f, 0.83420f, 0.83486f,
280	24.0M	0.83552f, 0.83617f, 0.83682f, 0.83747f,
281	24.0M	0.83812f, 0.83877f, 0.83941f, 0.84005f,
282	24.0M	0.84069f, 0.84133f, 0.84197f, 0.84261f,
283	24.0M	0.84324f, 0.84387f, 0.84450f, 0.84513f,
284	24.0M	0.84576f, 0.84639f, 0.84701f, 0.84763f,
285	24.0M	0.84825f, 0.84887f, 0.84949f, 0.85010f,
286	24.0M	0.85071f, 0.85132f, 0.85193f, 0.85254f,
287	24.0M	0.85315f, 0.85375f, 0.85436f, 0.85496f,
288	24.0M	0.85556f, 0.85615f, 0.85675f, 0.85735f,
289	24.0M	0.85794f, 0.85853f, 0.85912f, 0.85971f,
290	24.0M	0.86029f, 0.86088f, 0.86146f, 0.86204f,
291	24.0M	0.86262f, 0.86320f, 0.86378f, 0.86435f,
292	24.0M	0.86493f, 0.86550f, 0.86607f, 0.86664f,
293	24.0M	0.86720f, 0.86777f, 0.86833f, 0.86889f,
294	24.0M	0.86945f, 0.87001f, 0.87057f, 0.87113f,
295	24.0M	0.87168f, 0.87223f, 0.87278f, 0.87333f,
296	24.0M	0.87388f, 0.87443f, 0.87497f, 0.87552f,
297	24.0M	0.87606f, 0.87660f, 0.87714f, 0.87768f,
298	24.0M	0.87821f, 0.87875f, 0.87928f, 0.87981f,
299	24.0M	0.88034f, 0.88087f, 0.88140f, 0.88192f,
300	24.0M	0.88244f, 0.88297f, 0.88349f, 0.88401f,
301	24.0M	0.88453f, 0.88504f, 0.88556f, 0.88607f,
302	24.0M	0.88658f, 0.88709f, 0.88760f, 0.88811f,
303	24.0M	0.88862f, 0.88912f, 0.88963f, 0.89013f,
304	24.0M	0.89063f, 0.89113f, 0.89163f, 0.89212f,
305	24.0M	0.89262f, 0.89311f, 0.89360f, 0.89409f,
306	24.0M	0.89458f, 0.89507f, 0.89556f, 0.89604f,
307	24.0M	0.89653f, 0.89701f, 0.89749f, 0.89797f,
308	24.0M	0.89845f, 0.89892f, 0.89940f, 0.89987f,
309	24.0M	0.90035f, 0.90082f, 0.90129f, 0.90176f,
310	24.0M	0.90222f, 0.90269f, 0.90316f, 0.90362f,
311	24.0M	0.90408f, 0.90454f, 0.90500f, 0.90546f,
312	24.0M	0.90592f, 0.90637f, 0.90683f, 0.90728f,
313	24.0M	0.90773f, 0.90818f, 0.90863f, 0.90908f,
314	24.0M	0.90952f, 0.90997f, 0.91041f, 0.91085f,
315	24.0M	0.91130f, 0.91173f, 0.91217f, 0.91261f,
316	24.0M	0.91305f, 0.91348f, 0.91392f, 0.91435f,
317	24.0M	0.91478f, 0.91521f, 0.91564f, 0.91606f,
318	24.0M	0.91649f, 0.91691f, 0.91734f, 0.91776f,
319	24.0M	0.91818f, 0.91860f, 0.91902f, 0.91944f,
320	24.0M	0.91985f, 0.92027f, 0.92068f, 0.92109f,
321	24.0M	0.92150f, 0.92191f, 0.92232f, 0.92273f,
322	24.0M	0.92314f, 0.92354f, 0.92395f, 0.92435f,
323	24.0M	0.92475f, 0.92515f, 0.92555f, 0.92595f,
324	24.0M	0.92634f, 0.92674f, 0.92713f, 0.92753f,
325	24.0M	0.92792f, 0.92831f, 0.92870f, 0.92909f,
326	24.0M	0.92947f, 0.92986f, 0.93025f, 0.93063f,
327	24.0M	0.93101f, 0.93139f, 0.93177f, 0.93215f,
328	24.0M	0.93253f, 0.93291f, 0.93328f, 0.93366f,
329	24.0M	0.93403f, 0.93440f, 0.93478f, 0.93515f,
330	24.0M	0.93551f, 0.93588f, 0.93625f, 0.93661f,
331	24.0M	0.93698f, 0.93734f, 0.93770f, 0.93807f,
332	24.0M	0.93843f, 0.93878f, 0.93914f, 0.93950f,
333	24.0M	0.93986f, 0.94021f, 0.94056f, 0.94092f,
334	24.0M	0.94127f, 0.94162f, 0.94197f, 0.94231f,
335	24.0M	0.94266f, 0.94301f, 0.94335f, 0.94369f,
336	24.0M	0.94404f, 0.94438f, 0.94472f, 0.94506f,
337	24.0M	0.94540f, 0.94573f, 0.94607f, 0.94641f,
338	24.0M	0.94674f, 0.94707f, 0.94740f, 0.94774f,
339	24.0M	0.94807f, 0.94839f, 0.94872f, 0.94905f,
340	24.0M	0.94937f, 0.94970f, 0.95002f, 0.95035f,
341	24.0M	0.95067f, 0.95099f, 0.95131f, 0.95163f,
342	24.0M	0.95194f, 0.95226f, 0.95257f, 0.95289f,
343	24.0M	0.95320f, 0.95351f, 0.95383f, 0.95414f,
344	24.0M	0.95445f, 0.95475f, 0.95506f, 0.95537f,
345	24.0M	0.95567f, 0.95598f, 0.95628f, 0.95658f,
346	24.0M	0.95688f, 0.95718f, 0.95748f, 0.95778f,
347	24.0M	0.95808f, 0.95838f, 0.95867f, 0.95897f,
348	24.0M	0.95926f, 0.95955f, 0.95984f, 0.96013f,
349	24.0M	0.96042f, 0.96071f, 0.96100f, 0.96129f,
350	24.0M	0.96157f, 0.96186f, 0.96214f, 0.96242f,
351	24.0M	0.96271f, 0.96299f, 0.96327f, 0.96355f,
352	24.0M	0.96382f, 0.96410f, 0.96438f, 0.96465f,
353	24.0M	0.96493f, 0.96520f, 0.96547f, 0.96574f,
354	24.0M	0.96602f, 0.96629f, 0.96655f, 0.96682f,
355	24.0M	0.96709f, 0.96735f, 0.96762f, 0.96788f,
356	24.0M	0.96815f, 0.96841f, 0.96867f, 0.96893f,
357	24.0M	0.96919f, 0.96945f, 0.96971f, 0.96996f,
358	24.0M	0.97022f, 0.97047f, 0.97073f, 0.97098f,
359	24.0M	0.97123f, 0.97149f, 0.97174f, 0.97199f,
360	24.0M	0.97223f, 0.97248f, 0.97273f, 0.97297f,
361	24.0M	0.97322f, 0.97346f, 0.97371f, 0.97395f,
362	24.0M	0.97419f, 0.97443f, 0.97467f, 0.97491f,
363	24.0M	0.97515f, 0.97539f, 0.97562f, 0.97586f,
364	24.0M	0.97609f, 0.97633f, 0.97656f, 0.97679f,
365	24.0M	0.97702f, 0.97725f, 0.97748f, 0.97771f,
366	24.0M	0.97794f, 0.97817f, 0.97839f, 0.97862f,
367	24.0M	0.97884f, 0.97907f, 0.97929f, 0.97951f,
368	24.0M	0.97973f, 0.97995f, 0.98017f, 0.98039f,
369	24.0M	0.98061f, 0.98082f, 0.98104f, 0.98125f,
370	24.0M	0.98147f, 0.98168f, 0.98189f, 0.98211f,
371	24.0M	0.98232f, 0.98253f, 0.98274f, 0.98295f,
372	24.0M	0.98315f, 0.98336f, 0.98357f, 0.98377f,
373	24.0M	0.98398f, 0.98418f, 0.98438f, 0.98458f,
374	24.0M	0.98478f, 0.98498f, 0.98518f, 0.98538f,
375	24.0M	0.98558f, 0.98578f, 0.98597f, 0.98617f,
376	24.0M	0.98636f, 0.98656f, 0.98675f, 0.98694f,
377	24.0M	0.98714f, 0.98733f, 0.98752f, 0.98771f,
378	24.0M	0.98789f, 0.98808f, 0.98827f, 0.98845f,
379	24.0M	0.98864f, 0.98882f, 0.98901f, 0.98919f,
380	24.0M	0.98937f, 0.98955f, 0.98973f, 0.98991f,
381	24.0M	0.99009f, 0.99027f, 0.99045f, 0.99063f,
382	24.0M	0.99080f, 0.99098f, 0.99115f, 0.99133f,
383	24.0M	0.99150f, 0.99167f, 0.99184f, 0.99201f,
384	24.0M	0.99218f, 0.99235f, 0.99252f, 0.99269f,
385	24.0M	0.99285f, 0.99302f, 0.99319f, 0.99335f,
386	24.0M	0.99351f, 0.99368f, 0.99384f, 0.99400f,
387	24.0M	0.99416f, 0.99432f, 0.99448f, 0.99464f,
388	24.0M	0.99480f, 0.99495f, 0.99511f, 0.99527f,
389	24.0M	0.99542f, 0.99558f, 0.99573f, 0.99588f,
390	24.0M	0.99603f, 0.99619f, 0.99634f, 0.99649f,
391	24.0M	0.99664f, 0.99678f, 0.99693f, 0.99708f,
392	24.0M	0.99722f, 0.99737f, 0.99751f, 0.99766f,
393	24.0M	0.99780f, 0.99794f, 0.99809f, 0.99823f,
394	24.0M	0.99837f, 0.99851f, 0.99865f, 0.99879f,
395	24.0M	0.99892f, 0.99906f, 0.99920f, 0.99933f,
396	24.0M	0.99947f, 0.99960f, 0.99974f, 0.99987f,
397	24.0M	1.00000f
398	24.0M	};
399
400	24.0M	const uint32 kTableSize = sizeof (kTable ) /
401	24.0M	sizeof (kTable [0]);
402
403	24.0M	real32 y = (real32) x * (real32) (kTableSize - 1);
404
405	24.0M	int32 index = Pin_int32 (0, (int32) y, kTableSize - 2);
406
407	24.0M	real32 fract = y - (real32) index;
408
409	24.0M	return kTable [index ] * (1.0f - fract) +
410	24.0M	kTable [index + 1] * ( fract);
411
412	24.0M	}
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	6.69k	{
698
699	6.69k	static dng_tone_curve_acr3_default static_dng_tone_curve_acr3_default;
700
701	6.69k	return static_dng_tone_curve_acr3_default;
702
703	6.69k	}
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	6.22k	: dng_filter_task (srcImage,
771	6.22k	dstImage)
772
773	6.22k	, fNegative (negative )
774	6.22k	, fParams (params )
775	6.22k	, fSrcOffset (srcOffset)
776
777	6.22k	, fCameraWhite ()
778	6.22k	, fCameraToRGB ()
779
780	6.22k	, fHueSatMap ()
781
782	6.22k	, fExposureRamp ()
783
784	6.22k	, fLookTable ()
785
786	6.22k	, fToneCurve ()
787
788	6.22k	, fRGBtoFinal ()
789
790	6.22k	, fEncodeGamma ()
791
792	6.22k	, fHueSatMapEncode ()
793	6.22k	, fHueSatMapDecode ()
794
795	6.22k	, fLookTableEncode ()
796	6.22k	, fLookTableDecode ()
797
798	6.22k	{
799
800	6.22k	fSrcPixelType = ttFloat;
801	6.22k	fDstPixelType = ttFloat;
802
803	6.22k	}
804
805		/*****************************************************************************/
806
807		dng_rect dng_render_task::SrcArea (const dng_rect &dstArea)
808	691k	{
809
810	691k	return dstArea + fSrcOffset;
811
812	691k	}
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	6.22k	{
821
822	6.22k	dng_filter_task::Start (threadCount,
823	6.22k	tileSize,
824	6.22k	allocator,
825	6.22k	sniffer);
826
827		// Compute camera space to linear ProPhoto RGB parameters.
828
829	6.22k	dng_camera_profile_id profileID; // Default profile ID.
830
831	6.22k	if (!fNegative.IsMonochrome ())
832	837	{
833
834	837	AutoPtr<dng_color_spec> spec (fNegative.MakeColorSpec (profileID));
835
836	837	if (fParams.WhiteXY ().IsValid ())
837	0	{
838
839	0	spec->SetWhiteXY (fParams.WhiteXY ());
840
841	0	}
842
843	837	else if (fNegative.HasCameraNeutral ())
844	153	{
845
846	153	spec->SetWhiteXY (spec->NeutralToXY (fNegative.CameraNeutral ()));
847
848	153	}
849
850	684	else if (fNegative.HasCameraWhiteXY ())
851	169	{
852
853	169	spec->SetWhiteXY (fNegative.CameraWhiteXY ());
854
855	169	}
856
857	515	else
858	515	{
859
860	515	spec->SetWhiteXY (D55_xy_coord ());
861
862	515	}
863
864	837	fCameraWhite = spec->CameraWhite ();
865
866	837	fCameraToRGB = dng_space_ProPhoto::Get ().MatrixFromPCS () *
867	837	spec->CameraToPCS ();
868
869		// Find Hue/Sat table, if any.
870
871	837	const dng_camera_profile *profile = fNegative.ProfileByID (profileID);
872
873	837	if (profile)
874	816	{
875
876	816	fHueSatMap.Reset (profile->HueSatMapForWhite (spec->WhiteXY ()));
877
878	816	if (profile->HasLookTable ())
879	0	{
880
881	0	fLookTable.Reset (new dng_hue_sat_map (profile->LookTable ()));
882
883	0	}
884
885	816	if (profile->HueSatMapEncoding () != encoding_Linear)
886	16	{
887
888	16	BuildHueSatMapEncodingTable (*allocator,
889	16	profile->HueSatMapEncoding (),
890	16	fHueSatMapEncode,
891	16	fHueSatMapDecode,
892	16	false);
893
894	16	}
895
896	816	if (profile->LookTableEncoding () != encoding_Linear)
897	48	{
898
899	48	BuildHueSatMapEncodingTable (*allocator,
900	48	profile->LookTableEncoding (),
901	48	fLookTableEncode,
902	48	fLookTableDecode,
903	48	false);
904
905	48	}
906
907	816	}
908
909	837	}
910
911		// Compute exposure/shadows ramp.
912
913	6.22k	real64 exposure = fParams.Exposure () +
914	6.22k	fNegative.TotalBaselineExposure (profileID) -
915	6.22k	(log (fNegative.Stage3Gain ()) / log (2.0));
916
917	6.22k	{
918
919	6.22k	real64 white = 1.0 / pow (2.0, Max_real64 (0.0, exposure));
920
921	6.22k	real64 black = fParams.Shadows () *
922	6.22k	fNegative.ShadowScale () *
923	6.22k	fNegative.Stage3Gain () *
924	6.22k	0.001;
925
926	6.22k	black = Min_real64 (black, 0.99 * white);
927
928	6.22k	dng_function_exposure_ramp rampFunction (white,
929	6.22k	black,
930	6.22k	black);
931
932	6.22k	fExposureRamp.Initialize (*allocator, rampFunction);
933
934	6.22k	}
935
936		// Compute tone curve.
937
938	6.22k	{
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	6.22k	dng_function_exposure_tone exposureTone (exposure);
945
946	6.22k	dng_1d_concatenate totalTone (exposureTone,
947	6.22k	fParams.ToneCurve ());
948
949	6.22k	fToneCurve.Initialize (*allocator, totalTone);
950
951	6.22k	}
952
953		// Compute linear ProPhoto RGB to final space parameters.
954
955	6.22k	{
956
957	6.22k	const dng_color_space &finalSpace = fParams.FinalSpace ();
958
959	6.22k	fRGBtoFinal = finalSpace.MatrixFromPCS () *
960	6.22k	dng_space_ProPhoto::Get ().MatrixToPCS ();
961
962	6.22k	fEncodeGamma.Initialize (*allocator, finalSpace.GammaFunction ());
963
964	6.22k	}
965
966		// Allocate temp buffer to hold one row of RGB data.
967
968	6.22k	uint32 tempBufferSize = 0;
969
970	6.22k	if (!SafeUint32Mult (tileSize.h, (uint32) sizeof (real32), &tempBufferSize) \|\|
971	6.17k	!SafeUint32Mult (tempBufferSize, 3, &tempBufferSize))
972	0	{
973
974	0	ThrowMemoryFull("Arithmetic overflow computing buffer size.");
975
976	0	}
977
978	12.3k	for (uint32 threadIndex = 0; threadIndex < threadCount; threadIndex++)
979	6.17k	{
980
981	6.17k	fTempBuffer [threadIndex] . Reset (allocator->Allocate (tempBufferSize));
982
983	6.17k	}
984
985	6.22k	}
986
987		/*****************************************************************************/
988
989		void dng_render_task::ProcessArea (uint32 threadIndex,
990		dng_pixel_buffer &srcBuffer,
991		dng_pixel_buffer &dstBuffer)
992	685k	{
993
994	685k	dng_rect srcArea = srcBuffer.fArea;
995	685k	dng_rect dstArea = dstBuffer.fArea;
996
997	685k	uint32 srcCols = srcArea.W ();
998
999	685k	real32 *tPtrR = fTempBuffer [threadIndex]->Buffer_real32 ();
1000
1001	685k	real32 *tPtrG = tPtrR + srcCols;
1002	685k	real32 *tPtrB = tPtrG + srcCols;
1003
1004	19.4M	for (int32 srcRow = srcArea.t; srcRow < srcArea.b; srcRow++)
1005	18.7M	{
1006
1007		// First convert from camera native space to linear PhotoRGB,
1008		// applying the white balance and camera profile.
1009
1010	18.7M	{
1011
1012	18.7M	const real32 sPtrA = (const real32 )
1013	18.7M	srcBuffer.ConstPixel (srcRow,
1014	18.7M	srcArea.l,
1015	18.7M	0);
1016
1017	18.7M	if (fSrcPlanes == 1)
1018	18.2M	{
1019
1020		// For monochrome cameras, this just requires copying
1021		// the data into all three color channels.
1022
1023	18.2M	DoCopyBytes (sPtrA, tPtrR, srcCols * (uint32) sizeof (real32));
1024	18.2M	DoCopyBytes (sPtrA, tPtrG, srcCols * (uint32) sizeof (real32));
1025	18.2M	DoCopyBytes (sPtrA, tPtrB, srcCols * (uint32) sizeof (real32));
1026
1027	18.2M	}
1028
1029	478k	else
1030	478k	{
1031
1032	478k	const real32 *sPtrB = sPtrA + srcBuffer.fPlaneStep;
1033	478k	const real32 *sPtrC = sPtrB + srcBuffer.fPlaneStep;
1034
1035	478k	if (fSrcPlanes == 3)
1036	293k	{
1037
1038	293k	DoBaselineABCtoRGB (sPtrA,
1039	293k	sPtrB,
1040	293k	sPtrC,
1041	293k	tPtrR,
1042	293k	tPtrG,
1043	293k	tPtrB,
1044	293k	srcCols,
1045	293k	fCameraWhite,
1046	293k	fCameraToRGB);
1047
1048	293k	}
1049
1050	185k	else
1051	185k	{
1052
1053	185k	const real32 *sPtrD = sPtrC + srcBuffer.fPlaneStep;
1054
1055	185k	DoBaselineABCDtoRGB (sPtrA,
1056	185k	sPtrB,
1057	185k	sPtrC,
1058	185k	sPtrD,
1059	185k	tPtrR,
1060	185k	tPtrG,
1061	185k	tPtrB,
1062	185k	srcCols,
1063	185k	fCameraWhite,
1064	185k	fCameraToRGB);
1065
1066	185k	}
1067
1068		// Apply Hue/Sat map, if any.
1069
1070	478k	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	478k	}
1087
1088	18.7M	}
1089
1090		// Apply exposure curve.
1091
1092	18.7M	DoBaseline1DTable (tPtrR,
1093	18.7M	tPtrR,
1094	18.7M	srcCols,
1095	18.7M	fExposureRamp);
1096
1097	18.7M	DoBaseline1DTable (tPtrG,
1098	18.7M	tPtrG,
1099	18.7M	srcCols,
1100	18.7M	fExposureRamp);
1101
1102	18.7M	DoBaseline1DTable (tPtrB,
1103	18.7M	tPtrB,
1104	18.7M	srcCols,
1105	18.7M	fExposureRamp);
1106
1107		// Apply look table, if any.
1108
1109	18.7M	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	18.7M	DoBaselineRGBTone (tPtrR,
1128	18.7M	tPtrG,
1129	18.7M	tPtrB,
1130	18.7M	tPtrR,
1131	18.7M	tPtrG,
1132	18.7M	tPtrB,
1133	18.7M	srcCols,
1134	18.7M	fToneCurve);
1135
1136		// Convert to final color space.
1137
1138	18.7M	int32 dstRow = srcRow + (dstArea.t - srcArea.t);
1139
1140	18.7M	if (fDstPlanes == 1)
1141	901k	{
1142
1143	901k	real32 *dPtrG = dstBuffer.DirtyPixel_real32 (dstRow,
1144	901k	dstArea.l,
1145	901k	0);
1146
1147	901k	DoBaselineRGBtoGray (tPtrR,
1148	901k	tPtrG,
1149	901k	tPtrB,
1150	901k	dPtrG,
1151	901k	srcCols,
1152	901k	fRGBtoFinal);
1153
1154	901k	DoBaseline1DTable (dPtrG,
1155	901k	dPtrG,
1156	901k	srcCols,
1157	901k	fEncodeGamma);
1158
1159	901k	}
1160
1161	17.8M	else
1162	17.8M	{
1163
1164	17.8M	real32 *dPtrR = dstBuffer.DirtyPixel_real32 (dstRow,
1165	17.8M	dstArea.l,
1166	17.8M	0);
1167
1168	17.8M	real32 *dPtrG = dPtrR + dstBuffer.fPlaneStep;
1169	17.8M	real32 *dPtrB = dPtrG + dstBuffer.fPlaneStep;
1170
1171	17.8M	DoBaselineRGBtoRGB (tPtrR,
1172	17.8M	tPtrG,
1173	17.8M	tPtrB,
1174	17.8M	dPtrR,
1175	17.8M	dPtrG,
1176	17.8M	dPtrB,
1177	17.8M	srcCols,
1178	17.8M	fRGBtoFinal);
1179
1180	17.8M	DoBaseline1DTable (dPtrR,
1181	17.8M	dPtrR,
1182	17.8M	srcCols,
1183	17.8M	fEncodeGamma);
1184
1185	17.8M	DoBaseline1DTable (dPtrG,
1186	17.8M	dPtrG,
1187	17.8M	srcCols,
1188	17.8M	fEncodeGamma);
1189
1190	17.8M	DoBaseline1DTable (dPtrB,
1191	17.8M	dPtrB,
1192	17.8M	srcCols,
1193	17.8M	fEncodeGamma);
1194
1195	17.8M	}
1196
1197	18.7M	}
1198
1199	685k	}
1200
1201		/*****************************************************************************/
1202
1203		dng_render::dng_render (dng_host &host,
1204		const dng_negative &negative)
1205
1206	6.69k	: fHost (host)
1207	6.69k	, fNegative (negative)
1208
1209	6.69k	, fWhiteXY ()
1210
1211	6.69k	, fExposure (0.0)
1212	6.69k	, fShadows (5.0)
1213
1214	6.69k	, fToneCurve (&dng_tone_curve_acr3_default::Get ())
1215
1216	6.69k	, fFinalSpace (&dng_space_sRGB::Get ())
1217	6.69k	, fFinalPixelType (ttByte)
1218
1219	6.69k	, fMaximumSize (0)
1220
1221	6.69k	, fProfileToneCurve ()
1222
1223	6.69k	{
1224
1225		// Switch to NOP default parameters for non-scene referred data.
1226
1227	6.69k	if (fNegative.ColorimetricReference () != crSceneReferred)
1228	320	{
1229
1230	320	fShadows = 0.0;
1231
1232	320	fToneCurve = &dng_1d_identity::Get ();
1233
1234	320	}
1235
1236		// Use default tone curve from profile if any.
1237
1238	6.69k	const dng_camera_profile *profile = fNegative.ProfileByID (dng_camera_profile_id ());
1239
1240	6.69k	if (profile && profile->ToneCurve ().IsValid ())
1241	0	{
1242
1243	0	fProfileToneCurve.Reset (new dng_spline_solver);
1244
1245	0	profile->ToneCurve ().Solve (*fProfileToneCurve.Get ());
1246
1247	0	fToneCurve = fProfileToneCurve.Get ();
1248
1249	0	}
1250
1251		// Turn off default shadow mapping if requested by profile.
1252
1253	6.69k	if (profile && (profile->DefaultBlackRender () == defaultBlackRender_None))
1254	3	{
1255
1256	3	fShadows = 0.0;
1257
1258	3	}
1259
1260	6.69k	}
1261
1262		/*****************************************************************************/
1263
1264		dng_image * dng_render::Render ()
1265	6.69k	{
1266
1267	6.69k	const dng_image *srcImage = fNegative.Stage3Image ();
1268
1269	6.69k	dng_rect srcBounds = fNegative.DefaultCropArea ();
1270
1271	6.69k	dng_point dstSize;
1272
1273	6.69k	dstSize.h = fNegative.DefaultFinalWidth ();
1274	6.69k	dstSize.v = fNegative.DefaultFinalHeight ();
1275
1276	6.69k	if (MaximumSize ())
1277	4.03k	{
1278
1279	4.03k	if (Max_uint32 (dstSize.h, dstSize.v) > MaximumSize ())
1280	2.24k	{
1281
1282	2.24k	real64 ratio = fNegative.AspectRatio ();
1283
1284	2.24k	if (ratio >= 1.0)
1285	913	{
1286	913	dstSize.h = MaximumSize ();
1287	913	dstSize.v = Max_uint32 (1, Round_uint32 (dstSize.h / ratio));
1288	913	}
1289
1290	1.32k	else
1291	1.32k	{
1292	1.32k	dstSize.v = MaximumSize ();
1293	1.32k	dstSize.h = Max_uint32 (1, Round_uint32 (dstSize.v * ratio));
1294	1.32k	}
1295
1296	2.24k	}
1297
1298	4.03k	}
1299
1300	6.69k	AutoPtr<dng_image> tempImage;
1301
1302	6.69k	if (srcBounds.Size () != dstSize)
1303	2.98k	{
1304
1305	2.98k	tempImage.Reset (fHost.Make_dng_image (dstSize,
1306	2.98k	srcImage->Planes (),
1307	2.98k	srcImage->PixelType ()));
1308
1309	2.98k	ResampleImage (fHost,
1310	2.98k	*srcImage,
1311	2.98k	*tempImage.Get (),
1312	2.98k	srcBounds,
1313	2.98k	tempImage->Bounds (),
1314	2.98k	dng_resample_bicubic::Get ());
1315
1316	2.98k	srcImage = tempImage.Get ();
1317
1318	2.98k	srcBounds = tempImage->Bounds ();
1319
1320	2.98k	}
1321
1322	6.69k	uint32 dstPlanes = FinalSpace ().IsMonochrome () ? 1 : 3;
1323
1324	6.69k	AutoPtr<dng_image> dstImage (fHost.Make_dng_image (srcBounds.Size (),
1325	6.69k	dstPlanes,
1326	6.69k	FinalPixelType ()));
1327
1328	6.69k	dng_render_task task (*srcImage,
1329	6.69k	*dstImage.Get (),
1330	6.69k	fNegative,
1331	6.69k	*this,
1332	6.69k	srcBounds.TL ());
1333
1334	6.69k	fHost.PerformAreaTask (task,
1335	6.69k	dstImage->Bounds ());
1336
1337	6.69k	return dstImage.Release ();
1338
1339	6.69k	}
1340
1341		/*****************************************************************************/

Coverage Report

Created: 2026-05-23 06:54