mirror of
https://github.com/ultimatepp/ultimatepp.git
synced 2026-05-16 06:05:58 -06:00
138 lines
2.8 KiB
C++
138 lines
2.8 KiB
C++
#include "GLDraw.h"
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namespace Upp {
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GLCode::GLCode(const char *vertex_shader, const char *pixel_shader)
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{
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Compile(vertex_shader, pixel_shader);
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Vector<Tuple2<int, const char *>> ins;
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CParser p(vertex_shader);
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auto readID = [&](int& n) {
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String id;
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n = 0;
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while(!p.IsEof() && !p.IsChar(';'))
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if(p.IsId()) {
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id = p.ReadId();
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if(p.Char('[') && p.IsInt()) {
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n = p.ReadInt();
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p.Char(']');
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}
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}
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else {
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p.SkipTerm();
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n = 0;
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}
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return id;
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};
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int ii = 0;
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while(!p.IsEof() && !p.Char('{'))
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if(p.Id("attribute") || p.Id("in")) {
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int n;
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String id = readID(n);
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if(id.GetCount())
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glBindAttribLocation(program, ii++, id);
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}
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else
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p.SkipTerm();
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Link();
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Use();
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p.Set(pixel_shader);
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int ti = 0;
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while(!p.IsEof() && !p.Char('{'))
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if(p.Id("sampler2D") || p.Id("sampler3D")) {
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int n;
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String id = readID(n);
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if(id.GetCount())
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if(n) {
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for(int i = 0; i < n; i++) {
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ASSERT(GetUniform(id + '[' + AsString(i) + ']') >= 0);
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glUniform1i(GetUniform(id + '[' + AsString(i) + ']'), ti++);
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}
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}
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else
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glUniform1i(GetUniform(id), ti++);
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}
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else
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p.SkipTerm();
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}
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GLCode& GLCode::Uniform(int i, double a)
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{
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Use();
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glUniform1f(i, (float)a);
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return *this;
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}
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GLCode& GLCode::Uniform(int i, double a, double b)
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{
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Use();
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glUniform2f(i, (float)a, (float)b);
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return *this;
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}
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GLCode& GLCode::Uniform(int i, double a, double b, double c)
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{
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Use();
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glUniform3f(i, (float)a, (float)b, (float)c);
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return *this;
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}
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GLCode& GLCode::Uniform(int i, double a, double b, double c, double d)
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{
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Use();
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glUniform4f(i, (float)a, (float)b, (float)c, (float)d);
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return *this;
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}
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GLCode& GLCode::Uniform(const char *id, double a)
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{
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Use();
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glUniform1f(GetUniform(id), (float)a);
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return *this;
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}
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GLCode& GLCode::Uniform(const char *id, double a, double b)
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{
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Use();
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glUniform2f(GetUniform(id), (float)a, (float)b);
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return *this;
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}
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GLCode& GLCode::Uniform(const char *id, double a, double b, double c)
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{
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Use();
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glUniform3f(GetUniform(id), (float)a, (float)b, (float)c);
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return *this;
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}
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GLCode& GLCode::Uniform(const char *id, double a, double b, double c, double d)
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{
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Use();
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glUniform4f(GetUniform(id), (float)a, (float)b, (float)c, (float)d);
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return *this;
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}
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GLCode& GLCode::operator()(const char *id, Color c, double alpha)
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{
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return Uniform(GetUniform(id), c, alpha);
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}
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GLCode& GLCode::operator()(int i, Color c, double alpha)
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{
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return Uniform(i, c.GetR() / 255.0f, c.GetG() / 255.0f, c.GetB() / 255.0f, alpha);
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}
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GLCode& GLCode::Mat4(int i, float *mat4)
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{
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glUniformMatrix4fv(i, 1, GL_FALSE, mat4);
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return *this;
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}
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GLCode& GLCode::Mat4(const char *id, float *mat4)
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{
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return Mat4(GetUniform(id), mat4);
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}
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};
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