Files
panopainter/src/shader.h

132 lines
4.7 KiB
C++

#pragma once
#include "util.h"
bool check_uniform_uniqueness();
enum class kShaderUniform : uint16_t
{
MVP = const_hash("mvp"),
Tex = const_hash("tex"),
TexFG = const_hash("tex_fg"),
TexBG = const_hash("tex_bg"),
TexMix = const_hash("tex_mix"),
TexMixA = const_hash("tex_mix_alpha"),
TexMask = const_hash("tex_mask"),
TexDual = const_hash("tex_dual"),
TexStroke = const_hash("tex_stroke"),
TexPattern = const_hash("tex_pattern"),
PatternOffset = const_hash("pattern_offset"),
PatternAlpha = const_hash("pattern_alpha"),
MixAlpha = const_hash("mix_alpha"),
Opacity = const_hash("opacity"),
Wet = const_hash("wet"),
Lock = const_hash("lock"),
Col = const_hash("col"),
Tof = const_hash("tof"),
Tsz = const_hash("tsz"),
Alpha = const_hash("alpha"),
Mask = const_hash("mask"),
Resolution = const_hash("resolution"),
Highlight = const_hash("highlight"),
BlendMode = const_hash("blend_mode"),
DualBlendMode = const_hash("dual_blend_mode"),
Noise = const_hash("noise"),
Direction = const_hash("dir"),
UseDual = const_hash("use_dual"),
UsePattern = const_hash("use_pattern"),
LightDir = const_hash("light_dir"),
Mode = const_hash("mode"),
Ambient = const_hash("ambient"),
PatternInvert = const_hash("pattern_invert"),
PatternScale = const_hash("pattern_scale"),
PatternBright = const_hash("pattern_bright"),
PatternContrast = const_hash("pattern_contr"),
PatternDepth = const_hash("pattern_depth"),
PatternBlendMode = const_hash("patt_blend_mode"),
Colorize = const_hash("colorize"),
DualAlpha = const_hash("dual_alpha"),
UseFragcoord = const_hash("use_fragcoord"),
DrawOutline = const_hash("draw_outline"),
};
enum class kShader : uint16_t
{
Color = const_hash("color"),
ColorQuad = const_hash("color-quad"),
ColorTri = const_hash("color-tri"),
ColorHue = const_hash("color-hue"),
Texture = const_hash("texture"),
TextureMask = const_hash("texture-mask"),
TextureColorize = const_hash("texture-colorize"),
TextureAlpha= const_hash("texture-alpha"),
TextureBlend= const_hash("texture-blend"),
CompErase = const_hash("comp-erase"),
CompDraw = const_hash("comp-draw"),
UVs = const_hash("uvs"),
UVs_2 = const_hash("uvs2"),
Font = const_hash("font"),
Atlas = const_hash("atlas"),
Stroke = const_hash("stroke"),
StrokePad = const_hash("stroke-pad"),
StrokeDilate= const_hash("stroke-dilate"),
StrokePreview = const_hash("stroke-preview"),
Checkerboard= const_hash("checkerboard"),
Equirect = const_hash("equirect"),
BrushStroke = const_hash("brush-stroke"),
VertexColor = const_hash("vertex-color"),
Lambert = const_hash("lambert"),
LambertLightmap = const_hash("lambert-lightmap"),
BakeUV = const_hash("bakeuv"),
};
class Shader
{
std::map<std::string, struct stat> m_deps;
std::string m_path;
std::map<kShaderUniform, GLuint> m_umap;
GLuint prog;
std::string read(const std::string& path);
public:
kShader name;
void parse_error(const std::string& msg, const std::string& code);
bool load(const std::string& path);
bool reload();
bool create(const std::string& vertex, const std::string& fragment);
void destroy();
void use();
void u_vec4(kShaderUniform id, const glm::vec4& v);
void u_vec3(kShaderUniform id, const glm::vec3& v);
void u_vec2(kShaderUniform id, const glm::vec2& v);
void u_mat4(kShaderUniform id, const glm::mat4& m);
void u_int(kShaderUniform id, int i);
void u_int(const char* name, int i);
void u_float(kShaderUniform id, float f);
GLint GetAttribLocation(const char* name);
};
class ShaderManager
{
static std::map<kShader, Shader> m_shaders;
static Shader* m_current;
public:
static bool ext_framebuffer_fetch;
static bool ext_float32;
static bool ext_float32_linear;
static bool ext_float16;
static bool ext_map_aligned;
static bool load(kShader id, const std::string& path);
static bool reload();
static bool create(kShader id, const std::string& vertex, const std::string& fragment);
static void use(kShader id);
static void use(const char* name);
static Shader* get(kShader id);
static void u_vec4(kShaderUniform id, const glm::vec4& v);
static void u_vec3(kShaderUniform id, const glm::vec3& v);
static void u_vec2(kShaderUniform id, const glm::vec2& v);
static void u_mat4(kShaderUniform id, const glm::mat4& m);
static void u_int(kShaderUniform id, int i);
static void u_int(const char* name, int i);
static void u_float(kShaderUniform id, float f);
static void invalidate();
};