Index

zydeco / 7457fba

Experiment in graphics programming, C++, OpenGL, simulation techniques.

Download | Refs | Commit Log | Files | README | LICENSE

Latest Commit

{#}TimeHashSubjectAuthor#(+)(-)GPG?
803 Sep 2023 23:177457fbaImGui bringupJosh Stockin1129G

Blob @ zydeco / src / render / gl / GLRenderObject.cpp

text/plain3923 bytesdownload raw
1#include <list>
2
3#include "ZydecoCommon.hpp"
4#include "GLRenderObject.hpp"
5#include "GLProgram.hpp"
6
7
8static Logger LOGGER("GLRenderObject");
9
10// static initialize
11std::map<uint64_t, std::list<GLRenderObject*>> GLRenderObject::s_renderObjects = {};
12
13
14GLRenderObject::GLRenderObject(std::string gl_program_name, uint64_t render_order):
15 m_renderOrder(render_order),
16 m_renderEnabled(true)
17{
18 if (gl_program_name != "")
19 {
20 m_glProgram = GLProgram::GetGLProgram(gl_program_name);
21 if (m_glProgram == nullptr) { ZydecoFault("GLRenderObject(): Program '{}' is nonexistent", gl_program_name); }
22 }
23
24 s_renderObjects.insert(std::pair<uint64_t, std::list<GLRenderObject*>>(render_order, {}));
25 s_renderObjects.at(render_order).push_back(this);
26}
27
28GLRenderObject::~GLRenderObject()
29{
30 s_renderObjects.at(m_renderOrder).remove(this);
31 if (s_renderObjects.at(m_renderOrder).empty())
32 {
33 s_renderObjects.erase(m_renderOrder);
34 }
35}
36
37void GLRenderObject::RenderEnable()
38{
39 m_renderEnabled = true;
40}
41
42void GLRenderObject::RenderDisable()
43{
44 m_renderEnabled = false;
45}
46
47void GLRenderObject::GLTargetSetup()
48{
49 glUseProgram(m_glProgram->GetGLProgramID());
50
51 for (std::pair<std::string, glUniform> uniform : m_uniforms)
52 {
53 int location = glGetUniformLocation(m_glProgram->GetGLProgramID(), uniform.first.c_str());
54 if (location == -1)
55 {
56 LOGGER.Log(Logger::ERROR, "Render(): Uniform '{}' does not exist for program '{}'", uniform.first, m_glProgram->GetGLProgramName());
57 continue;
58 }
59
60 if (uniform.second.type == glUniformType::FLOAT)
61 {
62 switch (uniform.second.quantity)
63 {
64 case 1: glUniform1f(location, *(float*)(uniform.second.data[0])); break;
65 case 2: glUniform2f(location, *(float*)(uniform.second.data[0]), *(float*)(uniform.second.data[1])); break;
66 case 3: glUniform3f(location, *(float*)(uniform.second.data[0]), *(float*)(uniform.second.data[1]), *(float*)(uniform.second.data[2])); break;
67 case 4: glUniform4f(location, *(float*)(uniform.second.data[0]), *(float*)(uniform.second.data[1]), *(float*)(uniform.second.data[2]), *(float*)(uniform.second.data[3])); break;
68 }
69 }
70 else if (uniform.second.type == glUniformType::INT)
71 {
72 switch (uniform.second.quantity)
73 {
74 case 1: glUniform1i(location, *(int*)(uniform.second.data[0])); break;
75 case 2: glUniform2i(location, *(int*)(uniform.second.data[0]), *(int*)(uniform.second.data[1])); break;
76 case 3: glUniform3i(location, *(int*)(uniform.second.data[0]), *(int*)(uniform.second.data[1]), *(int*)(uniform.second.data[2])); break;
77 case 4: glUniform4i(location, *(int*)(uniform.second.data[0]), *(int*)(uniform.second.data[1]), *(int*)(uniform.second.data[2]), *(int*)(uniform.second.data[3])); break;
78 }
79 }
80 else if (uniform.second.type == glUniformType::UINT)
81 {
82 switch (uniform.second.quantity)
83 {
84 case 1: glUniform1ui(location, *(unsigned int*)(uniform.second.data[0])); break;
85 case 2: glUniform2ui(location, *(unsigned int*)(uniform.second.data[0]), *(unsigned int*)(uniform.second.data[1])); break;
86 case 3: glUniform3ui(location, *(unsigned int*)(uniform.second.data[0]), *(unsigned int*)(uniform.second.data[1]), *(unsigned int*)(uniform.second.data[2])); break;
87 case 4: glUniform4ui(location, *(unsigned int*)(uniform.second.data[0]), *(unsigned int*)(uniform.second.data[1]), *(unsigned int*)(uniform.second.data[2]), *(unsigned int*)(uniform.second.data[3])); break;
88 }
89 }
90 }
91}
92
93std::map<uint64_t, std::list<GLRenderObject*>>& GLRenderObject::GetRenderObjects()
94{
95 return s_renderObjects;
96}
97