void CL_Texture::set_mag_filter(CL_TextureFilter filter)
{
set_mag_filter_gl(filter_to_gl(filter));
}
void Scale_Op::render(const Image & in) throw (Error)
{
//DJV_DEBUG("Scale_Op::render");
//DJV_DEBUG_PRINT("in = " << in);
//DJV_DEBUG_PRINT("size = " << _value.size);
//DJV_DEBUG_PRINT("type = " << _value.type);
// Initialize.
Pixel_Data_Info info = in.info();
begin();
if (DEFAULT == _value.type)
{
_texture.init(
info,
filter_to_gl(_value.default_min),
filter_to_gl(_value.default_mag));
const State_Default state(_value);
if (_state_default != state)
{
//DJV_DEBUG_PRINT("init");
_render.shader.init(src_default);
_state_default = state;
}
}
else
{
_texture.init(info);
_render.texture_tmp.init(
Pixel_Data_Info(V2i(_value.size.x, in.h()), info.pixel));
const State_Custom state(_value);
if (_state_custom != state)
{
//DJV_DEBUG_PRINT("init");
_render.offscreen.init();
Pixel_Data contrib;
contrib_fnc(
in.w(),
_value.size.x,
_value.custom_min,
_value.custom_mag,
&contrib);
_render.contrib_x.init(contrib);
_render.shader_x.init(String_Format(src_custom).
arg(contrib.h()).
arg(src_x));
contrib_fnc(
in.h(),
_value.size.y,
_value.custom_min,
_value.custom_mag,
&contrib);
_render.contrib_y.init(contrib);
_render.shader_y.init(String_Format(src_custom).
arg(contrib.h()).
arg(src_y));
_state_custom = state;
}
}
// Render.
if (DEFAULT == _value.type)
{
_render.shader.bind();
const GLuint program = _render.shader.program();
glUniform2f(glGetUniformLocation(program, "scale_input"),
static_cast<GLfloat>(in.w()), static_cast<GLfloat>(in.h()));
glUniform2f(glGetUniformLocation(program, "scale_output"),
static_cast<GLfloat>(_value.size.x),
static_cast<GLfloat>(_value.size.y));
glActiveTexture(GL_TEXTURE0);
glUniform1i(glGetUniformLocation(program, "texture"), 0);
_texture.bind();
_texture.copy(in);
info = in.info();
info.size = _value.size;
Gl_Util::ortho(_value.size);
glViewport(0, 0, _value.size.x, _value.size.y);
glClear(GL_COLOR_BUFFER_BIT);
Util::quad(info);
}
else
{
// Horizontal.
_render.offscreen.bind();
_render.offscreen.set(_render.texture_tmp);
_render.shader_x.bind();
glActiveTexture(GL_TEXTURE0);
glUniform1i(
glGetUniformLocation(_render.shader_x.program(), "texture"), 0);
_texture.bind();
_texture.copy(in);
glActiveTexture(GL_TEXTURE1);
glUniform1i(
glGetUniformLocation(_render.shader_x.program(), "contrib"), 1);
_render.contrib_x.bind();
info = in.info();
info.size.x = _value.size.x;
Gl_Util::ortho(info.size);
glViewport(0, 0, info.size.x, info.size.y);
glClear(GL_COLOR_BUFFER_BIT);
Util::quad(info);
_render.offscreen.unbind();
// Vertical.
_render.shader_y.bind();
glActiveTexture(GL_TEXTURE0);
glUniform1i(
glGetUniformLocation(_render.shader_y.program(), "texture"), 0);
_render.texture_tmp.bind();
glActiveTexture(GL_TEXTURE1);
glUniform1i(
glGetUniformLocation(_render.shader_y.program(), "contrib"), 1);
_render.contrib_y.bind();
Gl_Util::ortho(_value.size);
glViewport(0, 0, _value.size.x, _value.size.y);
glClear(GL_COLOR_BUFFER_BIT);
Util::quad(Pixel_Data_Info(_value.size, in.pixel()));
}
end();
}
