Transform2 Transform2::TSR(vec2f translation, vec2f scale, float rot_d)
{
Transform2 t = Transform2::Identity();
float tmp[6];
nvgTransformRotate(tmp,nvgDegToRad(rot_d));
nvgTransformPremultiply(t.m_data,tmp);
nvgTransformScale(tmp,scale.x,scale.y);
nvgTransformPremultiply(t.m_data,tmp);
nvgTransformTranslate(tmp,translation.x,translation.y);
nvgTransformPremultiply(t.m_data,tmp);
return t;
}
JNIEXPORT void JNICALL Java_org_lwjgl_nanovg_NanoVG_nnvgTransformScale__JFF(JNIEnv *__env, jclass clazz, jlong dstAddress, jfloat sx, jfloat sy) {
float *dst = (float *)(intptr_t)dstAddress;
UNUSED_PARAMS(__env, clazz)
nvgTransformScale(dst, sx, sy);
}
Transform2 Transform2::Scale(float s)
{
Transform2 t;
nvgTransformScale(t.data(),s,s);
return t;
}
Transform2 Transform2::Scale(vec2f scale)
{
Transform2 t;
nvgTransformScale(t.data(),scale.x,scale.y);
return t;
}
static int glnvg__convertPaint(GLNVGcontext* gl, GLNVGfragUniforms* frag, NVGpaint* paint,
NVGscissor* scissor, float width, float fringe, float strokeThr)
{
PROFILER_CPU_TIMESLICE("NVG backend convertPaint");
GLNVGtexture* tex = NULL;
float invxform[6];
mem_zero(frag);
frag->innerCol = glnvg__premulColor(paint->innerColor);
frag->outerCol = glnvg__premulColor(paint->outerColor);
if (scissor->extent[0] < -0.5f || scissor->extent[1] < -0.5f) {
mem_zero(frag->scissorMat);
frag->scissorExt[0] = 1.0f;
frag->scissorExt[1] = 1.0f;
frag->scissorScale[0] = 1.0f;
frag->scissorScale[1] = 1.0f;
} else {
nvgTransformInverse(invxform, scissor->xform);
glnvg__xformToMat3x4(frag->scissorMat, invxform);
frag->scissorExt[0] = scissor->extent[0];
frag->scissorExt[1] = scissor->extent[1];
frag->scissorScale[0] = ml::sqrt(scissor->xform[0] * scissor->xform[0] + scissor->xform[2] * scissor->xform[2]) / fringe;
frag->scissorScale[1] = ml::sqrt(scissor->xform[1] * scissor->xform[1] + scissor->xform[3] * scissor->xform[3]) / fringe;
}
mem_copy(frag->extent, paint->extent, sizeof(frag->extent));
frag->strokeMult = (width*0.5f + fringe*0.5f) / fringe;
frag->strokeThr = strokeThr;
if (paint->image != 0) {
tex = glnvg__findTexture(gl, paint->image);
if (tex == NULL) return 0;
if ((tex->flags & NVGL_TEXTURE_FLIP_Y) != 0) {
float flipped[6];
nvgTransformScale(flipped, 1.0f, -1.0f);
nvgTransformMultiply(flipped, paint->xform);
nvgTransformInverse(invxform, flipped);
} else {
nvgTransformInverse(invxform, paint->xform);
}
frag->type = NSVG_SHADER_FILLIMG;
if (tex->type == NVG_TEXTURE_RGBA)
frag->texType = (tex->flags & NVGL_TEXTURE_PREMULTIPLIED) ? 0 : 1;
else
frag->texType = 2;
// printf("frag->texType = %d\n", frag->texType);
} else {
frag->type = NSVG_SHADER_FILLGRAD;
frag->radius = paint->radius;
frag->feather = paint->feather;
nvgTransformInverse(invxform, paint->xform);
}
glnvg__xformToMat3x4(frag->paintMat, invxform);
return 1;
}
