diff options
| -rw-r--r-- | src/libgamma_AdjustmentMethod.c | 101 |
1 files changed, 96 insertions, 5 deletions
diff --git a/src/libgamma_AdjustmentMethod.c b/src/libgamma_AdjustmentMethod.c index 2135238..76c4877 100644 --- a/src/libgamma_AdjustmentMethod.c +++ b/src/libgamma_AdjustmentMethod.c @@ -17,12 +17,20 @@ */ #include "libgamma_AdjustmentMethod.h" +#include <stdlib.h> +#include <string.h> + #include <libgamma.h> #define J JNIEnv* env, jclass class +#if LIBGAMMA_METHOD_COUNT > 6 +# error LIBGAMMA_METHOD_COUNT has been updated +#endif + + /** * List available adjustment methods by their order of preference based on the environment. @@ -36,7 +44,25 @@ * Other values invoke undefined behaviour. * @return List available adjustment methods by their order of preference. */ -jintArray Java_libgamma_AdjustmentMethod_libgamma_1list_1methods(J, jint operation); +jintArray Java_libgamma_AdjustmentMethod_libgamma_1list_1methods(J, jint operation) +{ + int methods[LIBGAMMA_METHOD_COUNT]; + size_t i, n; + jintArray rc; + + n = libgamma_list_methods(methods, LIBGAMMA_METHOD_COUNT, operation); + if (n > LIBGAMMA_METHOD_COUNT) + abort(); /* Prevented by the #if above and package maintenance. */ + + rc = (*env)->NewIntArray(env, n); + + /* Remember, jint is 32 bits, int is 16+ bits. */ + for (i = 0; i < n; i++) + (*env)->SetIntArrayRegion(env, rc, i, 1, methods + i); + + return rc; + (void) class; +} /** @@ -46,7 +72,12 @@ jintArray Java_libgamma_AdjustmentMethod_libgamma_1list_1methods(J, jint operati * @param method The adjustment method. * @return Whether the adjustment method is available. */ -jint Java_libgamma_AdjustmentMethod_libgamma_1is_1method_1available(J, jint method); +jint Java_libgamma_AdjustmentMethod_libgamma_1is_1method_1available(J, jint method) +{ + return libgamma_is_method_available(method); + (void) env; + (void) class; +} @@ -56,7 +87,31 @@ jint Java_libgamma_AdjustmentMethod_libgamma_1is_1method_1available(J, jint meth * @param method The adjustment method (display server and protocol). * @return Input parameter to the constructor of {@link AdjustmentMethodCapabilities}. */ -jlong Java_libgamma_AdjustmentMethod_libgamma_1method_1capabilities(J, jint method); +jlong Java_libgamma_AdjustmentMethod_libgamma_1method_1capabilities(J, jint method) +{ + libgamma_method_capabilities_t caps; + jlong rc; + + libgamma_method_capabilities(&caps, method); + rc = (jlong)(caps.crtc_information); + rc &= 0xFFFFFFFFLL; + rc |= caps.default_site_known ? (1LL < 33) : 0; + rc |= caps.multiple_sites ? (1LL < 34) : 0; + rc |= caps.multiple_partitions ? (1LL < 35) : 0; + rc |= caps.multiple_crtcs ? (1LL < 36) : 0; + rc |= caps.partitions_are_graphics_cards ? (1LL < 37) : 0; + rc |= caps.site_restore ? (1LL < 38) : 0; + rc |= caps.partition_restore ? (1LL < 39) : 0; + rc |= caps.crtc_restore ? (1LL < 40) : 0; + rc |= caps.identical_gamma_sizes ? (1LL < 41) : 0; + rc |= caps.fixed_gamma_size ? (1LL < 42) : 0; + rc |= caps.fixed_gamma_depth ? (1LL < 43) : 0; + rc |= caps.real ? (1LL < 44) : 0; + rc |= caps.fake ? (1LL < 45) : 0; + return rc; + (void) env; + (void) class; +} /** @@ -66,7 +121,25 @@ jlong Java_libgamma_AdjustmentMethod_libgamma_1method_1capabilities(J, jint meth * @return The default site, {@code null} if it cannot be determined or * if multiple sites are not supported by the adjustment method. */ -jstring Java_libgamma_AdjustmentMethod_libgamma_1method_1default_1site(J, jint method); +jstring Java_libgamma_AdjustmentMethod_libgamma_1method_1default_1site(J, jint method) +{ + /* It is really unlikely that `malloc` returns `NULL` here + * and error handing makes this unnecessarily comples, + * therefore we will simply skip it. */ + + char* do_not_free_this = libgamma_method_default_site(method); + char* this_will_be_freed; + size_t n; + if (do_not_free_this == NULL) + return NULL; + + n = strlen(do_not_free_this) + 1; + this_will_be_freed = malloc(n * sizeof(char)); + memcpy(this_will_be_freed, do_not_free_this, n * sizeof(char)); + + return (*env)->NewStringUTF(env, this_will_be_freed); + (void) class; +} /** @@ -78,5 +151,23 @@ jstring Java_libgamma_AdjustmentMethod_libgamma_1method_1default_1site(J, jint m * default site. {@code null} if there is none, that is, * if the method does not support multiple sites. */ -jstring Java_libgamma_AdjustmentMethod_libgamma_1method_1default_1site_1variable(J, jint method); +jstring Java_libgamma_AdjustmentMethod_libgamma_1method_1default_1site_1variable(J, jint method) +{ + /* It is really unlikely that `malloc` returns `NULL` here + * and error handing makes this unnecessarily comples, + * therefore we will simply skip it. */ + + const char* do_not_free_this = libgamma_method_default_site_variable(method); + char* this_will_be_freed; + size_t n; + if (do_not_free_this == NULL) + return NULL; + + n = strlen(do_not_free_this) + 1; + this_will_be_freed = malloc(n * sizeof(char)); + memcpy(this_will_be_freed, do_not_free_this, n * sizeof(char)); + + return (*env)->NewStringUTF(env, this_will_be_freed); + (void) class; +} |