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authorMattias Andrée <maandree@operamail.com>2014-09-03 19:12:59 +0200
committerMattias Andrée <maandree@operamail.com>2014-09-03 19:12:59 +0200
commitae6072ece6ac02a0d2438d110af90cf6ca2f3f50 (patch)
treeb27c31cfe1cb02cf865e23d639c7c06a234b2f56 /src/libgamma-method.hh
parentlibgamma_group_gid and libgamma_group_name (diff)
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gamma ramps and exception class
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to '')
-rw-r--r--src/libgamma-method.hh291
1 files changed, 291 insertions, 0 deletions
diff --git a/src/libgamma-method.hh b/src/libgamma-method.hh
index 9bec563..aedf6f6 100644
--- a/src/libgamma-method.hh
+++ b/src/libgamma-method.hh
@@ -20,8 +20,10 @@
#include <string>
+#include <cstdlib>
#include "libgamma-native.hh"
+#include "libgamma-error.hh"
namespace libgamma
@@ -504,6 +506,145 @@ namespace libgamma
#endif
/**
+ * One single Gamma ramp.
+ */
+ template <typename T>
+ class Ramp
+ {
+ public:
+ /**
+ * Constructor.
+ *
+ * @param ramp The ramp.
+ * @param size The size of the ramp.
+ */
+ Ramp(T* ramp, size_t size)
+ {
+ this->ramp = ramp;
+ this->size = size;
+ }
+
+ /**
+ * Destructor.
+ */
+ ~Ramp()
+ {
+ /* Do nothing */
+ }
+
+ /**
+ * Subscript operator.
+ *
+ * @param index The index of the stop to set or get.
+ * @return A reference to the stop's value.
+ */
+ T& operator [](size_t index)
+ {
+ return this->ramp[index];
+ }
+
+ /**
+ * Subscript operator.
+ *
+ * @param index The index of the stop to get.
+ * @return The value of the stop.
+ */
+ const T& operator [](size_t index) const
+ {
+ return this->ramp[index];
+ }
+
+
+
+ /**
+ * The size of the ramp.
+ */
+ size_t size;
+
+ /**
+ * The ramp (internal data).
+ */
+ T* ramp;
+
+ };
+
+
+ /**
+ * Gamma ramp structure.
+ */
+ template <typename T>
+ class GammaRamps
+ {
+ public:
+ /**
+ * Constructor.
+ */
+ GammaRamps() :
+ red(Ramp<T>(nullptr, 0)),
+ green(Ramp<T>(nullptr, 0)),
+ blue(Ramp<T>(nullptr, 0)),
+ depth(0)
+ {
+ /* Do nothing. */
+ }
+
+ /**
+ * Constructor.
+ *
+ * @param red The red gamma ramp.
+ * @param green The green gamma ramp.
+ * @param blue The blue gamma ramp.
+ * @param red_size The size of the gamma ramp for the red channel.
+ * @param green_size The size of the gamma ramp for the green channel.
+ * @param blue_size The size of the gamma ramp for the blue channel.
+ * @param depth The bit-depth of the gamma ramps, -1 for single precision
+ * floating point, and -2 for double precision floating point.
+ */
+ GammaRamps(T* red, T* green, T* blue, size_t red_size, size_t green_size, size_t blue_size, signed depth) :
+ red(Ramp<T>(red, red_size)),
+ green(Ramp<T>(green, green_size)),
+ blue(Ramp<T>(blue, blue_size)),
+ depth(depth)
+ {
+ /* Do nothing. */
+ }
+
+ /**
+ * Destructor.
+ */
+ ~GammaRamps()
+ {
+ free(this->red.ramp);
+ }
+
+
+
+ /**
+ * The red gamma ramp.
+ */
+ Ramp<T> red;
+
+ /**
+ * The green gamma ramp.
+ */
+ Ramp<T> green;
+
+ /**
+ * The blue gamma ramp.
+ */
+ Ramp<T> blue;
+
+ /**
+ * The bit-depth of the gamma ramps, -1 for single precision
+ * floating point, and -2 for double precision floating point.
+ */
+ signed depth;
+
+ };
+
+
+
+ /**
* Site state.
*
* On operating systems that integrate a graphical environment
@@ -690,6 +831,156 @@ namespace libgamma
*/
bool information(CRTCInformation* output, int32_t fields);
+#define __LIBGAMMA_GET_GAMMA(AFFIX) \
+ libgamma_gamma_ramps ## AFFIX ## _t native; \
+ int r; \
+ native.red = ramps->red.ramp; \
+ native.green = ramps->green.ramp; \
+ native.blue = ramps->blue.ramp; \
+ native.red_size = ramps->red.size; \
+ native.green_size = ramps->green.size; \
+ native.blue_size = ramps->blue.size; \
+ r = libgamma_crtc_get_gamma_ramps ## AFFIX(this->native, &native); \
+ if (r != 0) \
+ throw create_error(r)
+
+ /**
+ * Get the current gamma ramps for the CRTC.
+ *
+ * @param ramps The gamma ramps to fill with the current values.
+ */
+ void get_gamma(GammaRamps<uint8_t>* ramps)
+ {
+ __LIBGAMMA_GET_GAMMA(8);
+ }
+
+ /**
+ * Get the current gamma ramps for the CRTC.
+ *
+ * @param ramps The gamma ramps to fill with the current values.
+ */
+ void get_gamma(GammaRamps<uint16_t>* ramps)
+ {
+ __LIBGAMMA_GET_GAMMA(16);
+ }
+
+ /**
+ * Get the current gamma ramps for the CRTC.
+ *
+ * @param ramps The gamma ramps to fill with the current values.
+ */
+ void get_gamma(GammaRamps<uint32_t>* ramps)
+ {
+ __LIBGAMMA_GET_GAMMA(32);
+ }
+
+ /**
+ * Get the current gamma ramps for the CRTC.
+ *
+ * @param ramps The gamma ramps to fill with the current values.
+ */
+ void get_gamma(GammaRamps<uint64_t>* ramps)
+ {
+ __LIBGAMMA_GET_GAMMA(64);
+ }
+
+ /**
+ * Get the current gamma ramps for the CRTC.
+ *
+ * @param ramps The gamma ramps to fill with the current values.
+ */
+ void get_gamma(GammaRamps<float>* ramps)
+ {
+ __LIBGAMMA_GET_GAMMA(f);
+ }
+
+ /**
+ * Get the current gamma ramps for the CRTC.
+ *
+ * @param ramps The gamma ramps to fill with the current values.
+ */
+ void get_gamma(GammaRamps<double>* ramps)
+ {
+ __LIBGAMMA_GET_GAMMA(d);
+ }
+
+#undef __LIBGAMMA_GET_GAMMA
+
+#define __LIBGAMMA_SET_GAMMA(AFFIX) \
+ libgamma_gamma_ramps ## AFFIX ## _t native; \
+ int r; \
+ native.red = ramps->red.ramp; \
+ native.green = ramps->green.ramp; \
+ native.blue = ramps->blue.ramp; \
+ native.red_size = ramps->red.size; \
+ native.green_size = ramps->green.size; \
+ native.blue_size = ramps->blue.size; \
+ r = libgamma_crtc_set_gamma_ramps ## AFFIX(this->native, native); \
+ if (r != 0) \
+ throw create_error(r)
+
+ /**
+ * Set gamma ramps for the CRTC.
+ *
+ * @param ramps The gamma ramps to fill with the current values.
+ */
+ void set_gamma(GammaRamps<uint8_t>* ramps)
+ {
+ __LIBGAMMA_SET_GAMMA(8);
+ }
+
+ /**
+ * Set gamma ramps for the CRTC.
+ *
+ * @param ramps The gamma ramps to fill with the current values.
+ */
+ void set_gamma(GammaRamps<uint16_t>* ramps)
+ {
+ __LIBGAMMA_SET_GAMMA(16);
+ }
+
+ /**
+ * Set gamma ramps for the CRTC.
+ *
+ * @param ramps The gamma ramps to fill with the current values.
+ */
+ void set_gamma(GammaRamps<uint32_t>* ramps)
+ {
+ __LIBGAMMA_SET_GAMMA(32);
+ }
+
+ /**
+ * Set gamma ramps for the CRTC.
+ *
+ * @param ramps The gamma ramps to fill with the current values.
+ */
+ void set_gamma(GammaRamps<uint64_t>* ramps)
+ {
+ __LIBGAMMA_SET_GAMMA(64);
+ }
+
+ /**
+ * Set gamma ramps for the CRTC.
+ *
+ * @param ramps The gamma ramps to fill with the current values.
+ */
+ void set_gamma(GammaRamps<float>* ramps)
+ {
+ __LIBGAMMA_SET_GAMMA(f);
+ }
+
+ /**
+ * Set gamma ramps for the CRTC.
+ *
+ * @param ramps The gamma ramps to fill with the current values.
+ */
+ void set_gamma(GammaRamps<double>* ramps)
+ {
+ __LIBGAMMA_SET_GAMMA(d);
+ }
+
+#undef __LIBGAMMA_SET_GAMMA
+
/**