#include <kis_opengl_shader_loader.h>

Inheritance diagram for KisShaderProgram:

Public Member Functions
int	location (Uniform uniform)

Static Public Attributes
static std::map< Uniform, const char * >	names

Private Attributes
std::map< Uniform, int >	locationMap

Detailed Description

A wrapper class over Qt's QOpenGLShaderProgram to provide access to uniform locations without having to store them as constants next to the shader.

Definition at line 30 of file kis_opengl_shader_loader.h.

Member Function Documentation

◆ location()

int KisShaderProgram::location ( Uniform uniform )

inline

Stores uniform location in cache if it is called for the first time and retrieves the location from the map on subsequent calls.

Definition at line 42 of file kis_opengl_shader_loader.h.

                                  {
        std::map<Uniform, int>::const_iterator it = locationMap.find(uniform);
        if (it != locationMap.end()) {
            return it->second;
        } else {
            int location = uniformLocation(names[uniform]);
            locationMap[uniform] = location;
            return location;
        }
    }

References location(), locationMap, and names.

Member Data Documentation

◆ locationMap

std::map<Uniform, int> KisShaderProgram::locationMap

private

Definition at line 53 of file kis_opengl_shader_loader.h.

◆ names

std::map< Uniform, const char * > KisShaderProgram::names

static

Initial value:

= {
   {ModelViewProjection, "modelViewProjection"},
   {TextureMatrix, "textureMatrix"},
   {ViewportScale, "viewportScale"},
   {TexelSize, "texelSize"},
   {Texture0, "texture0"},
   {Texture1, "texture1"},
   {FixedLodLevel, "fixedLodLevel"},
   {FragmentColor, "fragColor"}
}

Stores the mapping of uniform enums to actual shader uniform names. The actual shader names are necessary for calls to uniformLocation.

Definition at line 23 of file kis_opengl_shader_loader.h.

30 : public QOpenGLShaderProgram {

31public:

The documentation for this class was generated from the following files:

libs/ui/opengl/kis_opengl_shader_loader.h
libs/ui/opengl/kis_opengl_shader_loader.cpp

Public Member Functions