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tweak raii shader constructors

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This commit is contained in:
David Allemang
2020-03-09 00:16:30 -04:00
parent 0c4a6f5eff
commit e56896db9b
2 changed files with 31 additions and 37 deletions
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54
vis/include/cgl/render.hpp
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@@ -58,6 +58,13 @@ namespace cgl {
id = glCreateShader(mode);
}
shader(GLenum mode, const std::string &src) : shader(mode) {
set_source(src);
if (!compile())
throw shader_error(get_info_log());
}
shader(shader &) = delete;
shader(shader &&o) noexcept {
@@ -160,6 +167,17 @@ namespace cgl {
glProgramParameteri(id, GL_PROGRAM_SEPARABLE, GL_TRUE);
}
shaderprogram(GLenum mode, const std::string &src) : shaderprogram(mode) {
shader sh(mode, src);
attach(sh);
if (!link())
throw shader_error(get_info_log());
detach(sh);
}
shaderprogram(shaderprogram &&o) noexcept : program(std::move(o)) {
mode = o.mode;
}
@@ -211,6 +229,8 @@ namespace cgl {
case GL_FRAGMENT_SHADER:
bits = GL_FRAGMENT_SHADER_BIT;
break;
default:
throw std::domain_error("invalid shaderprogram mode");
}
glUseProgramStages(id, bits, pgm);
@@ -230,37 +250,11 @@ namespace cgl {
}
};
shader compile_shader(GLenum mode, const std::string &src) {
shader res(mode);
res.set_source(src);
if (!res.compile())
throw shader_error(res.get_info_log());
return res;
shader compile_shader(GLenum mode, const std::string &file) {
return shader(mode, utilReadFile(file));
}
shader compile_shader_file(GLenum mode, const std::string &file) {
return compile_shader(mode, utilReadFile(file));
}
shaderprogram compile_shaderprogram(GLenum mode, const std::string &src) {
shader sh = compile_shader(mode, src);
shaderprogram res(mode);
res.attach(sh);
if (!res.link())
throw shader_error(res.get_info_log());
res.detach(sh);
return res;
}
shaderprogram compile_shaderprogram_file(GLenum mode, const std::string &file) {
return compile_shaderprogram(mode, utilReadFile(file));
shaderprogram compile_shaderprogram(GLenum mode, const std::string &file) {
return shaderprogram(mode, utilReadFile(file));
}
}