misc awesomeness

Signed-off-by: Mattias Andrée <maandree@operamail.com>

1 files changed, 149 insertions, 0 deletions

diff --git a/src/gamma-helper.h b/src/gamma-helper.h
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+/**
+ * libgamma — Display server abstraction layer for gamma ramp adjustments
+ * Copyright © 2014  Mattias Andrée (maandree@member.fsf.org)
+ * 
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef LIBGAMMA_GAMMA_HELPER_H
+#define LIBGAMMA_GAMMA_HELPER_H
+
+
+#include "libgamma-method.h"
+
+
+/**
+ * Gamma ramp structure union for different depths
+ */
+typedef union libgamma_gamma_ramps_any
+{
+  /**
+   * 16-bit gamma ramps
+   */
+  libgamma_gamma_ramps_t bits16;
+  
+  /**
+   * 32-bit gamma ramps
+   */
+  libgamma_gamma_ramps32_t bits32;
+  
+  /**
+   * 64-bit gamma ramps
+   */
+  libgamma_gamma_ramps64_t bits64;
+  
+  /**
+   * Single precision float gamma ramps
+   */
+  libgamma_gamma_rampsf_t float_single;
+  
+  /**
+   * Double precision float gamma ramps
+   */
+  libgamma_gamma_rampsd_t float_double;
+  
+} libgamma_gamma_ramps_any_t;
+
+
+typedef int libgamma_get_ramps_any_fun(libgamma_crtc_state_t* restrict this,
+				       libgamma_gamma_ramps_any_t* restrict ramps);
+
+typedef int libgamma_set_ramps_any_fun(libgamma_crtc_state_t* restrict this,
+				       libgamma_gamma_ramps_any_t ramps);
+
+
+
+/**
+ * Get current the gamma ramps for a CRTC, re-encoding version
+ * 
+ * @param   this          The CRTC state
+ * @param   ramps         The gamma ramps to fill with the current values
+ * @param   depth_user    The depth of the gamma ramps that are provided by the user,
+ *                        `-1` for `float`, `-2` for `double`
+ * @param   depth_system  The depth of the gamma ramps as required by the adjustment method,
+ *                        `-1` for `float`, `-2` for `double`
+ * @param   fun           Function that is to be used read the ramps, its parameters have
+ *                        the same function as those of this function with the same names,
+ *                        and the return value too is identical
+ * @return                Zero on success, otherwise (negative) the value of an
+ *                        error identifier provided by this library
+ */
+#define libgamma_translated_ramp_get(this, ramps, depth_user, depth_system, fun)                     \
+  libgamma_translated_ramp_get_(this, (libgamma_gamma_ramps_any_t*)(ramps), depth_user, depth_system,  \
+				(libgamma_get_ramps_any_fun*)(fun))
+
+
+/**
+ * Set the gamma ramps for a CRTC, re-encoding version
+ * 
+ * @param   this          The CRTC state
+ * @param   ramps         The gamma ramps to apply
+ * @param   depth_user    The depth of the gamma ramps that are provided by the user,
+ *                        `-1` for `float`, `-2` for `double`
+ * @param   depth_system  The depth of the gamma ramps as required by the adjustment method,
+ *                        `-1` for `float`, `-2` for `double`
+ * @param   fun           Function that is to be used write the ramps, its parameters have
+ *                        the same function as those of this function with the same names,
+ *                        and the return value too is identical
+ * @return                Zero on success, otherwise (negative) the value of an
+ *                        error identifier provided by this library
+ */
+#define libgamma_translated_ramp_set(this, ramps, depth_user, depth_system, fun)                    \
+  libgamma_translated_ramp_set_(this, (libgamma_gamma_ramps_any_t)(ramps), depth_user, depth_system,  \
+				(libgamma_set_ramps_any_fun*)(fun))
+
+
+/**
+ * Get current the gamma ramps for a CRTC, re-encoding version
+ * 
+ * @param   this          The CRTC state
+ * @param   ramps         The gamma ramps to fill with the current values
+ * @param   depth_user    The depth of the gamma ramps that are provided by the user,
+ *                        `-1` for `float`, `-2` for `double`
+ * @param   depth_system  The depth of the gamma ramps as required by the adjustment method,
+ *                        `-1` for `float`, `-2` for `double`
+ * @param   fun           Function that is to be used read the ramps, its parameters have
+ *                        the same function as those of this function with the same names,
+ *                        and the return value too is identical
+ * @return                Zero on success, otherwise (negative) the value of an
+ *                        error identifier provided by this library
+ */
+int libgamma_translated_ramp_get_(libgamma_crtc_state_t* restrict this,
+				  libgamma_gamma_ramps_any_t* restrict ramps,
+				  signed depth_user, signed depth_system,
+				  libgamma_get_ramps_any_fun* fun);
+
+
+/**
+ * Set the gamma ramps for a CRTC, re-encoding version
+ * 
+ * @param   this          The CRTC state
+ * @param   ramps         The gamma ramps to apply
+ * @param   depth_user    The depth of the gamma ramps that are provided by the user,
+ *                        `-1` for `float`, `-2` for `double`
+ * @param   depth_system  The depth of the gamma ramps as required by the adjustment method,
+ *                        `-1` for `float`, `-2` for `double`
+ * @param   fun           Function that is to be used write the ramps, its parameters have
+ *                        the same function as those of this function with the same names,
+ *                        and the return value too is identical
+ * @return                Zero on success, otherwise (negative) the value of an
+ *                        error identifier provided by this library
+ */
+int libgamma_translated_ramp_set_(libgamma_crtc_state_t* restrict this,
+				  libgamma_gamma_ramps_any_t ramps,
+				  signed depth_user, signed depth_system,
+				  libgamma_set_ramps_any_fun* fun);
+
+
+#endif
+