xiaoyan159/vtm
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

add and use utility to set Int color as uniform

Browse Source
This commit is contained in:
Hannes Janetzek
2013-03-16 01:35:41 +01:00
parent f262efee7f
commit 3e6ac7d5d4
6 changed files with 67 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
jni/gl/utils.c
View File

@@ -7,20 +7,53 @@
#define JNI(X) JNIEXPORT Java_org_oscim_utils_GlUtils_##X
static const char TAG[] = "org.oscim.utils.GLUtils";
#define COLOR_R(C) (((C >> 16) & 0xff) / 255.0f)
#define COLOR_G(C) (((C >> 8) & 0xff) / 255.0f)
#define COLOR_B(C) (((C >> 0) & 0xff) / 255.0f)
#define COLOR_A(C) (((C >> 24) & 0xff) / 255.0f)
static void
nativeClassInit(JNIEnv *_env)
void JNI(setColor)(JNIEnv *env, jclass* clazz, jint location, jint c, jfloat alpha)
{
if (alpha >= 1)
alpha = COLOR_A(c);
else if (alpha < 0)
alpha = 0;
else
alpha *= COLOR_A(c);
if (alpha == 1)
{
glUniform4f((GLint) location,
(GLfloat) COLOR_R(c),
(GLfloat) COLOR_G(c),
(GLfloat) COLOR_B(c),
(GLfloat) alpha);
}
else
{
glUniform4f((GLint) location,
(GLfloat) (COLOR_R(c) * alpha),
(GLfloat) (COLOR_G(c) * alpha),
(GLfloat) (COLOR_B(c) * alpha),
(GLfloat) alpha);
}
}
void JNI(init)(JNIEnv *env, jclass* clazz)
void JNI(setColorBlend)(JNIEnv *env, jclass* clazz, jint location, jint c1, jint c2, jfloat mix)
{
nativeClassInit(env);
__android_log_print(ANDROID_LOG_INFO, TAG, "all initialized");
float a1 = COLOR_A(c1) * (1 - mix);
float a2 = COLOR_A(c2) * mix;
glUniform4f((GLint) location,
(GLfloat) (COLOR_R(c1) * a1 + COLOR_R(c2) * a2),
(GLfloat) (COLOR_G(c1) * a1 + COLOR_G(c2) * a2),
(GLfloat) (COLOR_B(c1) * a1 + COLOR_B(c2) * a2),
(GLfloat) (a1 + a2));
}
#undef JNI
#define JNI(X) JNIEXPORT Java_org_oscim_utils_Matrix4_##X
@@ -42,7 +75,6 @@ transposeM(float* mTrans, int mTransOffset, float* m, int mOffset);
static inline void
matrix4_proj(float* mat, float* vec);
jlong JNI(alloc)(JNIEnv *env, jclass* clazz)
{
return (long) calloc(16, sizeof(float));