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#pragma once
#include "GL/GLShaderUniforms.h"
#include "GL/GLShaderUniformBlocks.h"
#include "GL/GLTexture.h"
#include "Shader.h"
namespace nCine
{
class GLShaderProgram;
class GLTexture;
class Texture;
class GLUniformCache;
class GLAttribute;
/// Contains material data for a drawable node
class Material
{
friend class RenderCommand;
public:
/// One of the predefined shader programs
enum class ShaderProgramType
{
/// Shader program for Sprite classes
Sprite = 0,
// Shader program for Sprite classes with grayscale font texture
//SpriteGray,
/// Shader program for Sprite classes with a solid color and no texture
SpriteNoTexture,
/// Shader program for MeshSprite classes
MeshSprite,
// Shader program for MeshSprite classes with grayscale font texture
//MeshSpriteGray,
/// Shader program for MeshSprite classes with a solid color and no texture
MeshSpriteNoTexture,
// Shader program for TextNode classes with glyph data in alpha channel
//TextNodeAlpha,
// Shader program for TextNode classes with glyph data in red channel
//TextNodeRed,
/// Shader program for a batch of Sprite classes
BatchedSprites,
// Shader program for a batch of Sprite classes with grayscale font texture
//BatchedSpritesGray,
/// Shader program for a batch of Sprite classes with solid colors and no texture
BatchedSpritesNoTexture,
/// Shader program for a batch of MeshSprite classes
BatchedMeshSprites,
// Shader program for a batch of MeshSprite classes with grayscale font texture
//BatchedMeshSpritesGray,
/// Shader program for a batch of MeshSprite classes with solid colors and no texture
BatchedMeshSpritesNoTexture,
// Shader program for a batch of TextNode classes with color font texture
//BatchedTextNodesAlpha,
// Shader program for a batch of TextNode classes with grayscale font texture
//BatchedTextNodesRed,
/// A custom shader program
Custom
};
/** @{ @name Constants */
// Shader uniform block and model matrix uniform names
static constexpr char InstanceBlockName[] = "InstanceBlock";
static constexpr char InstancesBlockName[] = "InstancesBlock"; // for batched shaders
static constexpr char ModelMatrixUniformName[] = "modelMatrix";
// Camera related shader uniform names
static constexpr char GuiProjectionMatrixUniformName[] = "uGuiProjection";
static constexpr char DepthUniformName[] = "uDepth";
static constexpr char ProjectionMatrixUniformName[] = "uProjectionMatrix";
static constexpr char ViewMatrixUniformName[] = "uViewMatrix";
static constexpr char ProjectionViewMatrixExcludeString[] = "uProjectionMatrix\0uViewMatrix\0";
// Shader uniform and attribute names
static constexpr char TextureUniformName[] = "uTexture";
static constexpr char ColorUniformName[] = "color";
static constexpr char SpriteSizeUniformName[] = "spriteSize";
static constexpr char TexRectUniformName[] = "texRect";
static constexpr char PositionAttributeName[] = "aPosition";
static constexpr char TexCoordsAttributeName[] = "aTexCoords";
static constexpr char MeshIndexAttributeName[] = "aMeshIndex";
static constexpr char ColorAttributeName[] = "aColor";
/** @} */
/// Default constructor
Material();
Material(GLShaderProgram* program, GLTexture* texture);
inline bool IsBlendingEnabled() const {
return isBlendingEnabled_;
}
inline void SetBlendingEnabled(bool blendingEnabled) {
isBlendingEnabled_ = blendingEnabled;
}
inline GLenum GetSrcBlendingFactor() const {
return srcBlendingFactor_;
}
inline GLenum GetDestBlendingFactor() const {
return destBlendingFactor_;
}
void SetBlendingFactors(GLenum srcBlendingFactor, GLenum destBlendingFactor);
inline ShaderProgramType GetShaderProgramType() const {
return shaderProgramType_;
}
bool SetShaderProgramType(ShaderProgramType shaderProgramType);
inline const GLShaderProgram* GetShaderProgram() const {
return shaderProgram_;
}
void SetShaderProgram(GLShaderProgram* program);
bool SetShader(Shader* shader);
void SetDefaultAttributesParameters();
void ReserveUniformsDataMemory();
void SetUniformsDataPointer(GLubyte* dataPointer);
/// Wrapper around `GLShaderUniforms::hasUniform()`
inline bool HasUniform(const char* name) const {
return shaderUniforms_.HasUniform(name);
}
/// Wrapper around `GLShaderUniformBlocks::hasUniformBlock()`
inline bool HasUniformBlock(const char* name) const {
return shaderUniformBlocks_.HasUniformBlock(name);
}
/// Wrapper around `GLShaderUniforms::uniform()`
inline GLUniformCache* Uniform(const char* name) {
return shaderUniforms_.GetUniform(name);
}
/// Wrapper around `GLShaderUniformBlocks::uniformBlock()`
inline GLUniformBlockCache* UniformBlock(const char* name) {
return shaderUniformBlocks_.GetUniformBlock(name);
}
/// Wrapper around `GLShaderUniforms::allUniforms()`
inline const GLShaderUniforms::UniformHashMapType GetAllUniforms() const {
return shaderUniforms_.GetAllUniforms();
}
/// Wrapper around `GLShaderUniformBlocks::allUniformBlocks()`
inline const GLShaderUniformBlocks::UniformHashMapType GetAllUniformBlocks() const {
return shaderUniformBlocks_.GetAllUniformBlocks();
}
const GLTexture* GetTexture(std::uint32_t unit) const;
bool SetTexture(std::uint32_t unit, const GLTexture* texture);
bool SetTexture(std::uint32_t unit, const Texture& texture);
inline const GLTexture* GetTexture() const {
return GetTexture(0);
}
inline bool SetTexture(const GLTexture* texture) {
return SetTexture(0, texture);
}
inline bool SetTexture(const Texture& texture) {
return SetTexture(0, texture);
}
private:
bool isBlendingEnabled_;
GLenum srcBlendingFactor_;
GLenum destBlendingFactor_;
ShaderProgramType shaderProgramType_;
GLShaderProgram* shaderProgram_;
GLShaderUniforms shaderUniforms_;
GLShaderUniformBlocks shaderUniformBlocks_;
const GLTexture* textures_[GLTexture::MaxTextureUnits];
/// The size of the memory buffer containing uniform values
std::uint32_t uniformsHostBufferSize_;
/// Memory buffer with uniform values to be sent to the GPU
std::unique_ptr<GLubyte[]> uniformsHostBuffer_;
void Bind();
/// Wrapper around `GLShaderUniforms::commitUniforms()`
inline void CommitUniforms() {
shaderUniforms_.CommitUniforms();
}
/// Wrapper around `GLShaderUniformBlocks::commitUniformBlocks()`
inline void CommitUniformBlocks() {
shaderUniformBlocks_.CommitUniformBlocks();
}
/// Wrapper around `GLShaderProgram::defineVertexFormat()`
void DefineVertexFormat(const GLBufferObject* vbo, const GLBufferObject* ibo, std::uint32_t vboOffset);
std::uint32_t GetSortKey();
};
}
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