void NVprPathRendererState::stencilStroke(GLint replace_value, GLuint stencil_write_mask,
GLenum stencil_func,
GLint stencil_ref,
GLuint read_mask)
{
glPathStencilFuncNV(stencil_func, stencil_ref, read_mask);
glStencilStrokePathNV(path, replace_value, stencil_write_mask);
}
static void nvpr_render_shape(void *render, LVGShapeCollection *shapecol, LVGColorTransform *cxform, float ratio, int blend_mode)
{
//render_ctx *ctx = render;
for (int j = 0; j < shapecol->num_shapes; j++)
{
NSVGshape *shape = shapecol->shapes + j;
NSVGshape *shape2 = shapecol->morph ? shapecol->morph->shapes + j : 0;
GLuint pathObj = shape->cache;
if (shape2)
pathObj = morph_shape(shape, shape2, ratio);
/*GLfloat object_bbox[4], fill_bbox[4], stroke_bbox[4];
glGetPathParameterfvNV(pathObj, GL_PATH_OBJECT_BOUNDING_BOX_NV, object_bbox);
glGetPathParameterfvNV(pathObj, GL_PATH_FILL_BOUNDING_BOX_NV, fill_bbox);
glGetPathParameterfvNV(pathObj, GL_PATH_STROKE_BOUNDING_BOX_NV, stroke_bbox);*/
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
switch(blend_mode)
{
case BLEND_LAYER: assert(0); break;
case BLEND_MULTIPLY: glBlendFunc(GL_DST_COLOR, GL_ONE_MINUS_SRC_ALPHA); break;
case BLEND_SCREEN: glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_COLOR); break;
case BLEND_LIGHTEN: glBlendFunc(GL_ONE, GL_ONE); glBlendEquation(GL_MAX); break;
case BLEND_DARKEN: glBlendFunc(GL_ONE, GL_ONE); glBlendEquation(GL_MIN); break;
case BLEND_DIFFERENCE: assert(0); break;
case BLEND_ADD: glBlendFunc(GL_ONE, GL_ONE); break;
case BLEND_SUBTRACT: glBlendFunc(GL_ONE, GL_ONE); glBlendEquation(GL_FUNC_REVERSE_SUBTRACT); break;
case BLEND_INVERT: assert(0); break;
case BLEND_ALPHA: assert(0); break;
case BLEND_ERASE: assert(0); break;
case BLEND_OVERLAY: assert(0); glBlendFunc(GL_DST_COLOR, GL_ONE_MINUS_SRC_ALPHA); break;
case BLEND_HARDLIGHT: assert(0); break;
}
glStencilFunc(GL_NOTEQUAL, 0, 0x1F);
glStencilOp(GL_KEEP, GL_KEEP, GL_ZERO);
glEnable(GL_STENCIL_TEST);
if (NSVG_PAINT_NONE != shape->fill.type)
{
if (NSVG_PAINT_COLOR == shape->fill.type)
{
NVGcolor c = transformColor(nvgColorU32(shape->fill.color), cxform);
glColor4f(c.r, c.g, c.b, c.a);
} else if (NSVG_PAINT_LINEAR_GRADIENT == shape->fill.type)
LinearGrad(shape, cxform, 1);
else if (NSVG_PAINT_RADIAL_GRADIENT == shape->fill.type)
RadialGrad(shape, cxform, 1);
else if (NSVG_PAINT_IMAGE == shape->fill.type)
ImagePaint(shape, cxform, 1);
glStencilFillPathNV(pathObj, (NSVG_FILLRULE_EVENODD == shape->fillRule) ? GL_INVERT : GL_COUNT_UP_NV, 0x1F);
glCoverFillPathNV(pathObj, GL_BOUNDING_BOX_NV);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glPathTexGenNV(GL_TEXTURE0, GL_NONE, 0, NULL);
glPathColorGenNV(GL_PRIMARY_COLOR, GL_NONE, 0, NULL);
glDisable(GL_TEXTURE_2D);
}
if (/*NSVG_PAINT_NONE != shape->stroke.type*/NSVG_PAINT_COLOR == shape->stroke.type)
{
if (NSVG_PAINT_COLOR == shape->stroke.type)
{
NVGcolor c = transformColor(nvgColorU32(shape->stroke.color), cxform);
glColor4f(c.r, c.g, c.b, c.a);
}/* else if (NSVG_PAINT_LINEAR_GRADIENT == shape->stroke.type)
LinearGrad(shape, cxform, 0);
else if (NSVG_PAINT_RADIAL_GRADIENT == shape->stroke.type)
RadialGrad(shape, cxform, 0);
else if (NSVG_PAINT_IMAGE == shape->stroke.type)
ImagePaint(shape, cxform, 0);*/
glPathParameterfNV(pathObj, GL_PATH_STROKE_WIDTH_NV, shape->strokeWidth);
if (NSVG_JOIN_ROUND == shape->strokeLineJoin)
glPathParameteriNV(pathObj, GL_PATH_JOIN_STYLE_NV, GL_ROUND_NV);
else if (NSVG_JOIN_BEVEL == shape->strokeLineJoin)
glPathParameteriNV(pathObj, GL_PATH_JOIN_STYLE_NV, GL_BEVEL_NV);
else if (NSVG_JOIN_MITER == shape->strokeLineJoin)
glPathParameteriNV(pathObj, GL_PATH_JOIN_STYLE_NV, GL_MITER_TRUNCATE_NV);
glPathParameterfNV(pathObj, GL_PATH_MITER_LIMIT_NV, shape->miterLimit);
if (NSVG_CAP_ROUND == shape->strokeLineCap)
glPathParameteriNV(pathObj, GL_PATH_END_CAPS_NV, GL_ROUND_NV);
else if (NSVG_CAP_BUTT == shape->strokeLineCap)
glPathParameteriNV(pathObj, GL_PATH_END_CAPS_NV, GL_FLAT);
else if (NSVG_CAP_SQUARE == shape->strokeLineCap)
glPathParameteriNV(pathObj, GL_PATH_END_CAPS_NV, GL_SQUARE_NV);
GLint reference = 0x1;
glStencilStrokePathNV(pathObj, reference, 0x1F);
glCoverStrokePathNV(pathObj, GL_BOUNDING_BOX_NV);
glPathColorGenNV(GL_PRIMARY_COLOR, GL_NONE, 0, NULL);
}
glDisable(GL_STENCIL_TEST);
glDisable(GL_BLEND);
if (shape2)
glDeletePathsNV(pathObj, 1);
}
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_NVPathRendering_nglStencilStrokePathNV(JNIEnv *env, jclass clazz, jint path, jint reference, jint mask, jlong function_pointer) {
glStencilStrokePathNVPROC glStencilStrokePathNV = (glStencilStrokePathNVPROC)((intptr_t)function_pointer);
glStencilStrokePathNV(path, reference, mask);
}