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-rw-r--r--src/platform/opengl/opengl_framebuffer.cpp246
-rw-r--r--src/platform/opengl/opengl_framebuffer.h35
-rw-r--r--src/platform/opengl/opengl_index_buffer.cpp28
-rw-r--r--src/platform/opengl/opengl_index_buffer.h22
-rw-r--r--src/platform/opengl/opengl_renderer_api.cpp118
-rw-r--r--src/platform/opengl/opengl_renderer_api.h44
-rw-r--r--src/platform/opengl/opengl_shader.cpp302
-rw-r--r--src/platform/opengl/opengl_shader.h58
-rw-r--r--src/platform/opengl/opengl_texture.cpp272
-rw-r--r--src/platform/opengl/opengl_texture.h68
-rw-r--r--src/platform/opengl/opengl_uniform_buffer.cpp29
-rw-r--r--src/platform/opengl/opengl_uniform_buffer.h21
-rw-r--r--src/platform/opengl/opengl_vertex_array.cpp58
-rw-r--r--src/platform/opengl/opengl_vertex_array.h41
-rw-r--r--src/platform/opengl/opengl_vertex_buffer.cpp35
-rw-r--r--src/platform/opengl/opengl_vertex_buffer.h25
16 files changed, 0 insertions, 1402 deletions
diff --git a/src/platform/opengl/opengl_framebuffer.cpp b/src/platform/opengl/opengl_framebuffer.cpp
deleted file mode 100644
index 1624439..0000000
--- a/src/platform/opengl/opengl_framebuffer.cpp
+++ /dev/null
@@ -1,246 +0,0 @@
-#include "opengl_framebuffer.h"
-#include "core/log.h"
-
-#include <glad/glad.h>
-
-namespace Donut
-{
- namespace Utils
- {
- static GLenum TextureTarget(bool multisampled)
- {
- return multisampled ? GL_TEXTURE_2D_MULTISAMPLE : GL_TEXTURE_2D;
- }
-
- static void bind_texture(bool multisampled, uint32_t id)
- {
- glBindTexture(TextureTarget(multisampled), id);
- }
-
- static void CreateTextures(bool multisampled, uint32_t* out_id, uint32_t count)
- {
- // glCreateTextures is 4.5 DSA; macOS caps at 4.1. Callers bind each
- // texture (with the correct target) before use.
- glGenTextures(count, out_id);
- }
-
- static void AttachColorTexture(uint32_t id, int samples, GLenum internal_format, GLenum format, uint32_t width, uint32_t height, int index)
- {
- bool multisampled = samples > 1;
- if (multisampled)
- {
- glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, samples, internal_format, width, height, GL_FALSE);
- }
- else
- {
- // Integer color formats require an integer pixel type even when
- // data is null, or macOS's strict core profile rejects the call.
- GLenum type = (format == GL_RED_INTEGER) ? GL_INT : GL_UNSIGNED_BYTE;
- glTexImage2D(GL_TEXTURE_2D, 0, internal_format, width, height, 0, format, type, nullptr);
-
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- }
-
- glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + index, TextureTarget(multisampled), id, 0);
- }
-
- static void AttachDepthTexture(uint32_t id, int samples, GLenum format, GLenum attachment_type, uint32_t width, uint32_t height)
- {
- bool multisampled = samples > 1;
- if (multisampled)
- {
- glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, samples, format, width, height, GL_FALSE);
- }
- else
- {
- // glTexStorage2D is 4.2; use mutable storage for macOS (4.1).
- GLenum depth_format = (format == GL_DEPTH24_STENCIL8) ? GL_DEPTH_STENCIL : GL_DEPTH_COMPONENT;
- GLenum depth_type = (format == GL_DEPTH24_STENCIL8) ? GL_UNSIGNED_INT_24_8 : GL_FLOAT;
- glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, depth_format, depth_type, nullptr);
-
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- }
-
- glFramebufferTexture2D(GL_FRAMEBUFFER, attachment_type, TextureTarget(multisampled), id, 0);
- }
-
- static bool IsDepthFormat(FramebufferTextureFormat format)
- {
- switch (format)
- {
- case FramebufferTextureFormat::DEPTH24STENCIL8: return true;
- }
- return false;
- }
-
- static GLenum DonutFBTextureFormatToGL(FramebufferTextureFormat format)
- {
- switch (format)
- {
- case FramebufferTextureFormat::RGBA8: return GL_RGBA8;
- case FramebufferTextureFormat::RED_INTEGER: return GL_RED_INTEGER;
- }
-
- return 0;
- }
- }
-
- OpenGLFramebuffer::OpenGLFramebuffer(const FramebufferSpecification& spec)
- : m_specification(spec)
- {
- for (auto spec : m_specification.attachments.attachments)
- {
- if (!Utils::IsDepthFormat(spec.texture_format))
- m_color_attachment_specifications.emplace_back(spec);
- else
- m_depth_attachment_specification = spec;
- }
-
- invalidate();
- }
-
- OpenGLFramebuffer::~OpenGLFramebuffer()
- {
- glDeleteFramebuffers(1, &m_renderer_id);
- glDeleteTextures(static_cast<GLsizei>(m_color_attachments.size()), m_color_attachments.data());
- glDeleteTextures(1, &m_depth_attachment);
- }
-
- auto OpenGLFramebuffer::invalidate() -> void
- {
- if (m_renderer_id)
- {
- glDeleteFramebuffers(1, &m_renderer_id);
- glDeleteTextures(static_cast<GLsizei>(m_color_attachments.size()), m_color_attachments.data());
- glDeleteTextures(1, &m_depth_attachment);
-
- m_color_attachments.clear();
- m_depth_attachment = 0;
- }
-
- glGenFramebuffers(1, &m_renderer_id); // glCreateFramebuffers is 4.5 DSA; unavailable on macOS 4.1
- glBindFramebuffer(GL_FRAMEBUFFER, m_renderer_id);
-
- bool multisample = m_specification.Samples > 1;
-
- if (m_color_attachment_specifications.size())
- {
- m_color_attachments.resize(m_color_attachment_specifications.size());
- Utils::CreateTextures(multisample, m_color_attachments.data(), static_cast<uint32_t>(m_color_attachments.size()));
-
- for (size_t i = 0; i < m_color_attachments.size(); i++)
- {
- Utils::bind_texture(multisample, m_color_attachments[i]);
- switch (m_color_attachment_specifications[i].texture_format)
- {
- case FramebufferTextureFormat::RGBA8:
- Utils::AttachColorTexture(m_color_attachments[i], m_specification.Samples, GL_RGBA8, GL_RGBA, m_specification.Width, m_specification.Height, static_cast<int>(i));
- break;
- case FramebufferTextureFormat::RED_INTEGER:
- Utils::AttachColorTexture(m_color_attachments[i], m_specification.Samples, GL_R32I, GL_RED_INTEGER, m_specification.Width, m_specification.Height, static_cast<int>(i));
- break;
- }
- }
- }
-
- if (m_depth_attachment_specification.texture_format != FramebufferTextureFormat::None)
- {
- Utils::CreateTextures(multisample, &m_depth_attachment, 1);
- Utils::bind_texture(multisample, m_depth_attachment);
- switch (m_depth_attachment_specification.texture_format)
- {
- case FramebufferTextureFormat::DEPTH24STENCIL8:
- Utils::AttachDepthTexture(m_depth_attachment, m_specification.Samples, GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL_ATTACHMENT, m_specification.Width, m_specification.Height);
- break;
- }
- }
-
- if (m_color_attachments.size() > 1)
- {
- GLenum buffers[4] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2, GL_COLOR_ATTACHMENT3 };
- glDrawBuffers(static_cast<GLsizei>(m_color_attachments.size()), buffers);
- }
- else if (m_color_attachments.empty())
- glDrawBuffer(GL_NONE);
-
- if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
- {
- GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
- switch (status)
- {
- case GL_FRAMEBUFFER_UNDEFINED:
- DONUT_ERROR("Framebuffer is undefined");
- break;
- case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT:
- DONUT_ERROR("Framebuffer has incomplete attachment");
- break;
- case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT:
- DONUT_ERROR("Framebuffer is missing attachment");
- break;
- case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER:
- DONUT_ERROR("Framebuffer has incomplete draw buffer");
- break;
- case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER:
- DONUT_ERROR("Framebuffer has incomplete read buffer");
- break;
- case GL_FRAMEBUFFER_UNSUPPORTED:
- DONUT_ERROR("Framebuffer format is unsupported");
- break;
- case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE:
- DONUT_ERROR("Framebuffer has incomplete multisample");
- break;
- case GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS:
- DONUT_ERROR("Framebuffer has incomplete layer targets");
- break;
- default:
- DONUT_ERROR("Framebuffer is incomplete (unknown error: {})", status);
- break;
- }
- }
-
- glBindFramebuffer(GL_FRAMEBUFFER, 0);
- }
-
- auto OpenGLFramebuffer::bind() -> void
- {
- glBindFramebuffer(GL_FRAMEBUFFER, m_renderer_id);
- glViewport(0, 0, m_specification.Width, m_specification.Height);
- }
-
- auto OpenGLFramebuffer::unbind() -> void
- {
- glBindFramebuffer(GL_FRAMEBUFFER, 0);
- }
-
- auto OpenGLFramebuffer::resize(uint32_t width, uint32_t height) -> void
- {
- m_specification.Width = width;
- m_specification.Height = height;
-
- invalidate();
- }
-
- auto OpenGLFramebuffer::read_pixel(uint32_t attachment_index, int x, int y) -> int
- {
- glReadBuffer(GL_COLOR_ATTACHMENT0 + attachment_index);
- int pixel_data;
- glReadPixels(x, y, 1, 1, GL_RED_INTEGER, GL_INT, &pixel_data);
- return pixel_data;
- }
-
- auto OpenGLFramebuffer::clear_attachment(uint32_t attachment_index, int value) -> void
- {
- // glClearTexImage is 4.4 and unavailable on macOS. clear the integer
- // attachment by binding this framebuffer and clearing its draw buffer.
- glBindFramebuffer(GL_FRAMEBUFFER, m_renderer_id);
- glClearBufferiv(GL_COLOR, static_cast<GLint>(attachment_index), &value);
- }
-};
diff --git a/src/platform/opengl/opengl_framebuffer.h b/src/platform/opengl/opengl_framebuffer.h
deleted file mode 100644
index 456d924..0000000
--- a/src/platform/opengl/opengl_framebuffer.h
+++ /dev/null
@@ -1,35 +0,0 @@
-#pragma once
-
-#include "rendering/framebuffer.h"
-
-namespace Donut
-{
- class OpenGLFramebuffer : public Framebuffer
- {
- public:
- OpenGLFramebuffer(const FramebufferSpecification& spec);
- virtual ~OpenGLFramebuffer();
-
- auto invalidate() -> void;
-
- virtual auto bind() -> void override;
- virtual auto unbind() -> void override;
-
- virtual auto resize(uint32_t width, uint32_t height) -> void override;
- virtual auto read_pixel(uint32_t attachment_index, int x, int y) -> int override;
-
- virtual auto clear_attachment(uint32_t attachment_index, int value) -> void override;
- virtual auto get_color_attachment_renderer_id(uint32_t index = 0) const -> uint32_t override{ return m_color_attachments[index]; }
-
- virtual auto get_specification() const -> const FramebufferSpecification& override{ return m_specification; }
- private:
- uint32_t m_renderer_id = 0;
- FramebufferSpecification m_specification;
-
- std::vector<FramebufferTextureSpecification> m_color_attachment_specifications;
- FramebufferTextureSpecification m_depth_attachment_specification = FramebufferTextureFormat::None;
-
- std::vector<uint32_t> m_color_attachments;
- uint32_t m_depth_attachment = 0;
- };
-};
diff --git a/src/platform/opengl/opengl_index_buffer.cpp b/src/platform/opengl/opengl_index_buffer.cpp
deleted file mode 100644
index faa6b81..0000000
--- a/src/platform/opengl/opengl_index_buffer.cpp
+++ /dev/null
@@ -1,28 +0,0 @@
-#include "opengl_index_buffer.h"
-#include <glad/glad.h>
-
-namespace Donut
-{
- OpenGLIndexBuffer::OpenGLIndexBuffer(const uint32_t* indices, uint32_t count)
- : m_count(count)
- {
- glGenBuffers(1, &m_renderer_id); // glCreateBuffers is 4.5 DSA; unavailable on macOS 4.1
- glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_renderer_id);
- glBufferData(GL_ELEMENT_ARRAY_BUFFER, count * sizeof(uint32_t), indices, GL_STATIC_DRAW);
- }
-
- OpenGLIndexBuffer::~OpenGLIndexBuffer()
- {
- glDeleteBuffers(1, &m_renderer_id);
- }
-
- auto OpenGLIndexBuffer::bind() const -> void
- {
- glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_renderer_id);
- }
-
- auto OpenGLIndexBuffer::unbind() const -> void
- {
- glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
- }
-};
diff --git a/src/platform/opengl/opengl_index_buffer.h b/src/platform/opengl/opengl_index_buffer.h
deleted file mode 100644
index 397da43..0000000
--- a/src/platform/opengl/opengl_index_buffer.h
+++ /dev/null
@@ -1,22 +0,0 @@
-#pragma once
-
-#include "rendering/index_buffer.h"
-
-namespace Donut
-{
- class OpenGLIndexBuffer
- : public IndexBuffer
- {
- public:
- OpenGLIndexBuffer(const uint32_t* indices, uint32_t count);
- virtual ~OpenGLIndexBuffer();
-
- virtual auto bind() const -> void override;
- virtual auto unbind() const -> void override;
- virtual auto get_count() const -> uint32_t override{ return m_count; }
-
- private:
- uint32_t m_renderer_id;
- uint32_t m_count;
- };
-};
diff --git a/src/platform/opengl/opengl_renderer_api.cpp b/src/platform/opengl/opengl_renderer_api.cpp
deleted file mode 100644
index 39ed786..0000000
--- a/src/platform/opengl/opengl_renderer_api.cpp
+++ /dev/null
@@ -1,118 +0,0 @@
-#include "opengl_renderer_api.h"
-
-#include <glad/glad.h>
-#include <GLFW/glfw3.h>
-
-namespace Donut
-{
- auto OpenGLRendererAPI::init() -> void
- {
- if (!glfwGetCurrentContext())
- {
- DONUT_ERROR("No OpenGL context is current! Cannot initialize GLAD.");
- return;
- }
-
- if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
- {
- DONUT_ERROR("Failed to initialize GLAD!");
- return;
- }
-
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- glEnable(GL_DEPTH_TEST);
- glDepthFunc(GL_LESS);
-
- glEnable(GL_CULL_FACE);
- glCullFace(GL_BACK);
- glFrontFace(GL_CCW);
- }
-
- auto OpenGLRendererAPI::set_viewport(uint32_t x, uint32_t y, uint32_t width, uint32_t height) -> void
- {
- glViewport(x, y, width, height);
- }
-
- auto OpenGLRendererAPI::set_clear_color(const glm::vec4& color) -> void
- {
- glClearColor(color.r, color.g, color.b, color.a);
- }
-
- auto OpenGLRendererAPI::clear() -> void
- {
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- }
-
- auto OpenGLRendererAPI::enable_depth_test() -> void
- {
- glEnable(GL_DEPTH_TEST);
- }
-
- auto OpenGLRendererAPI::disable_depth_test() -> void
- {
- glDisable(GL_DEPTH_TEST);
- }
-
- auto OpenGLRendererAPI::set_face_culling(bool enabled) -> void
- {
- if (enabled)
- {
- glEnable(GL_CULL_FACE);
- glCullFace(GL_BACK);
- glFrontFace(GL_CCW);
- }
- else
- glDisable(GL_CULL_FACE);
- }
-
- auto OpenGLRendererAPI::enable_blending() -> void
- {
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- }
-
- auto OpenGLRendererAPI::disable_blending() -> void
- {
- glDisable(GL_BLEND);
- }
-
- auto OpenGLRendererAPI::draw_indexed(const Ref<VertexArray>& vertex_array, uint32_t index_count) -> void
- {
- uint32_t count = index_count ? index_count : vertex_array->get_index_buffer()->get_count();
- glDrawElements(GL_TRIANGLES, count, GL_UNSIGNED_INT, nullptr);
- glBindTexture(GL_TEXTURE_2D, 0);
- }
-
- auto OpenGLRendererAPI::draw_arrays(uint32_t vertex_count, uint32_t first) -> void
- {
- glDrawArrays(GL_TRIANGLES, first, vertex_count);
- }
-
- auto OpenGLRendererAPI::draw_lines(const Ref<VertexArray>& vertex_array, uint32_t index_count) -> void
- {
- uint32_t count = index_count ? index_count : vertex_array->get_index_buffer()->get_count();
- glDrawElements(GL_LINES, count, GL_UNSIGNED_INT, nullptr);
- }
-
- auto OpenGLRendererAPI::bind_texture(uint32_t texture_id, uint32_t slot) -> void
- {
- glActiveTexture(GL_TEXTURE0 + slot);
- glBindTexture(GL_TEXTURE_2D, texture_id);
- }
-
- auto OpenGLRendererAPI::bind_image_texture(uint32_t texture_id, uint32_t slot, bool read_only) -> void
- {
- // Image load/store is OpenGL 4.2; the pointer is null on macOS (4.1).
- if (glBindImageTexture == nullptr)
- return;
- glBindImageTexture(slot, texture_id, 0, GL_FALSE, 0,
- read_only ? GL_READ_ONLY : GL_WRITE_ONLY, GL_RGBA8);
- }
-
- auto OpenGLRendererAPI::read_pixels(uint32_t x, uint32_t y, uint32_t width, uint32_t height,
- uint32_t format, uint32_t type, void* pixels) -> void
- {
- glReadPixels(x, y, width, height, format, type, pixels);
- }
-};
diff --git a/src/platform/opengl/opengl_renderer_api.h b/src/platform/opengl/opengl_renderer_api.h
deleted file mode 100644
index 02f18ab..0000000
--- a/src/platform/opengl/opengl_renderer_api.h
+++ /dev/null
@@ -1,44 +0,0 @@
-#pragma once
-
-#include "core/memory.h"
-#include "core/log.h"
-
-#include "rendering/renderer.h"
-
-#include <glad/glad.h>
-
-namespace Donut
-{
- class OpenGLRendererAPI
- : public RendererAPI
- {
- public:
- virtual auto init() -> void override;
- virtual void set_viewport(uint32_t x, uint32_t y,
- uint32_t width, uint32_t height) override;
- virtual auto set_clear_color(const glm::vec4& color) -> void override;
- virtual auto clear() -> void override;
- virtual auto enable_depth_test() -> void override;
- virtual auto disable_depth_test() -> void override;
- virtual auto set_face_culling(bool enabled) -> void override;
- virtual auto enable_blending() -> void override;
- virtual auto disable_blending() -> void override;
-
- virtual void draw_indexed(const Ref<VertexArray>& vertex_array,
- uint32_t index_count = 0) override;
-
- virtual void draw_arrays(uint32_t vertex_count,
- uint32_t first = 0) override;
- virtual void draw_lines(const Ref<VertexArray>& vertex_array,
- uint32_t index_count = 0) override;
- virtual void bind_texture(uint32_t texture_id,
- uint32_t slot = 0) override;
- virtual void bind_image_texture(uint32_t texture_id,
- uint32_t slot = 0,
- bool read_only = false) override;
- virtual void read_pixels(uint32_t x, uint32_t y,
- uint32_t width, uint32_t height,
- uint32_t format, uint32_t type,
- void* pixels) override;
- };
-};
diff --git a/src/platform/opengl/opengl_shader.cpp b/src/platform/opengl/opengl_shader.cpp
deleted file mode 100644
index d15d7e0..0000000
--- a/src/platform/opengl/opengl_shader.cpp
+++ /dev/null
@@ -1,302 +0,0 @@
-#include "opengl_shader.h"
-
-#include <glad/glad.h>
-#include <glm/gtc/type_ptr.hpp>
-
-#include <fstream>
-#include <iostream>
-
-namespace Donut
-{
- static uint32_t ShaderTypeFromString(const std::string& type)
- {
- if (type == "vertex")
- return GL_VERTEX_SHADER;
- if (type == "fragment" || type == "pixel")
- return GL_FRAGMENT_SHADER;
- if (type == "compute")
- return GL_COMPUTE_SHADER;
- return 0;
- }
-
- // Shaders are authored in Slang and compiled to assets/shaders/generated/
- // <name>.glsl by Tools/compile-shaders.sh. Given a legacy ".../<name>.glsl"
- // path, prefer that generated file when present; otherwise fall back to the
- // hand-written GLSL (e.g. shaders not yet ported to Slang).
- static std::string ResolveShaderPath(const std::string& filepath)
- {
- size_t slash = filepath.find_last_of("/\\");
- std::string dir = (slash == std::string::npos) ? std::string() : filepath.substr(0, slash + 1);
- std::string file = (slash == std::string::npos) ? filepath : filepath.substr(slash + 1);
- size_t dot = file.rfind('.');
- std::string base = (dot == std::string::npos) ? file : file.substr(0, dot);
-
- std::string generated = dir + "generated/" + base + ".glsl";
- std::ifstream test(generated);
- if (test.good())
- return generated;
- return filepath;
- }
-
- OpenGLShader::OpenGLShader(const std::string& filepath)
- {
- std::string resolved = ResolveShaderPath(filepath);
- m_is_slang = (resolved != filepath);
- std::string source = read_file(resolved);
- auto shader_sources = pre_process(source);
- compile(shader_sources);
-
- auto last_slash = filepath.find_last_of("/\\");
- last_slash = last_slash == std::string::npos ? 0 : last_slash + 1;
- auto last_dot = filepath.rfind('.');
- auto count = last_dot == std::string::npos ? filepath.size() - last_slash : last_dot - last_slash;
- m_name = filepath.substr(last_slash, count);
- }
-
- OpenGLShader::OpenGLShader(const std::string& name, const std::string& vertex_src, const std::string& fragment_src)
- : m_name(name)
- {
- std::unordered_map<uint32_t, std::string> sources;
- sources[GL_VERTEX_SHADER] = vertex_src;
- sources[GL_FRAGMENT_SHADER] = fragment_src;
- compile(sources);
- }
-
- OpenGLShader::OpenGLShader(const std::string& name, const std::string& compute_src)
- : m_name(name)
- {
- std::unordered_map<uint32_t, std::string> sources;
- sources[GL_COMPUTE_SHADER] = compute_src;
- compile(sources);
- }
-
- OpenGLShader::~OpenGLShader()
- {
- glDeleteProgram(m_renderer_id);
- }
-
- auto OpenGLShader::read_file(const std::string& filepath) -> std::string
- {
- std::string result;
- std::ifstream in(filepath, std::ios::in |
- std::ios::binary);
-
- if (in)
- {
- in.seekg(0, std::ios::end);
- size_t size = in.tellg();
- if (size != -1)
- {
- result.resize(size);
- in.seekg(0, std::ios::beg);
- in.read(&result[0], size);
- }
- }
- return result;
- }
-
- auto OpenGLShader::pre_process(const std::string& source) -> std::unordered_map<uint32_t, std::string>
- {
- std::unordered_map<uint32_t, std::string> shader_sources;
-
- const char* type_token = "#type";
- size_t type_token_length = strlen(type_token);
- size_t pos = source.find(type_token, 0);
-
- while (pos != std::string::npos)
- {
- size_t eol = source.find_first_of("\r\n", pos);
- size_t begin = pos + type_token_length + 1;
- std::string type = source.substr(begin, eol - begin);
-
- size_t next_line_pos = source.find_first_not_of("\r\n", eol);
- pos = source.find(type_token, next_line_pos);
- shader_sources[ShaderTypeFromString(type)] = (pos == std::string::npos) ? source.substr(next_line_pos) :
- source.substr(next_line_pos, pos - next_line_pos);
- }
-
- return shader_sources;
- }
-
- auto OpenGLShader::compile(const std::unordered_map<uint32_t, std::string>& shader_sources) -> void
- {
- uint32_t program = glCreateProgram();
- std::vector<uint32_t> glShaderIDs(shader_sources.size());
- for (auto& kv : shader_sources)
- {
- uint32_t type = kv.first;
- const std::string& source = kv.second;
-
- uint32_t shader = glCreateShader(type);
- const char* source_c_str = source.c_str();
- glShaderSource(shader, 1, &source_c_str, 0);
- glCompileShader(shader);
-
- int is_compiled = 0;
- glGetShaderiv(shader, GL_COMPILE_STATUS, &is_compiled);
- if (is_compiled == GL_FALSE)
- {
- int max_length = 0;
- glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &max_length);
- std::vector<char> info_log(max_length);
- glGetShaderInfoLog(shader, max_length, &max_length, &info_log[0]);
- glDeleteShader(shader);
- for (auto id : glShaderIDs)
- glDeleteShader(id);
- glDeleteProgram(program);
- m_renderer_id = 0;
- // info_log.data() is null when the driver returns an empty log
- // (e.g. macOS rejecting a compute shader); streaming a null
- // char* into std::cout calls strlen(NULL) and crashes.
- const char* log = info_log.empty() ? "" : info_log.data();
- std::cout << "Shader compilation failure!" << std::endl << log << std::endl;
- return;
- }
- glAttachShader(program, shader);
- glShaderIDs.push_back(shader);
- }
-
- m_renderer_id = program;
- glLinkProgram(m_renderer_id);
-
- int is_linked = 0;
- glGetProgramiv(m_renderer_id, GL_LINK_STATUS, (int*)&is_linked);
- if (is_linked == GL_FALSE)
- {
- int max_length = 0;
- glGetProgramiv(m_renderer_id, GL_INFO_LOG_LENGTH, &max_length);
- std::vector<char> info_log(max_length);
- glGetProgramInfoLog(m_renderer_id, max_length, &max_length, &info_log[0]);
- glDeleteProgram(m_renderer_id);
- for (auto id : glShaderIDs)
- glDeleteShader(id);
- m_renderer_id = 0;
- const char* log = info_log.empty() ? "" : info_log.data();
- std::cout << "Shader link failure!" << std::endl << log << std::endl;
- return;
- }
-
- for (auto id : glShaderIDs)
- {
- glDetachShader(m_renderer_id, id);
- glDeleteShader(id);
- }
- }
-
- auto OpenGLShader::bind() const -> void
- {
- glUseProgram(m_renderer_id);
- }
-
- auto OpenGLShader::unbind() const -> void
- {
- glUseProgram(0);
- }
-
- auto OpenGLShader::set_int(const std::string& name, int value) -> void
- {
- upload_uniform_int(name, value);
- }
-
- auto OpenGLShader::set_int_array(const std::string& name, int* values, uint32_t count) -> void
- {
- upload_uniform_int_array(name, values, count);
- }
-
- auto OpenGLShader::set_float(const std::string& name, float value) -> void
- {
- upload_uniform_float(name, value);
- }
-
- auto OpenGLShader::set_float2(const std::string& name, const glm::vec2& value) -> void
- {
- upload_uniform_float2(name, value);
- }
-
- auto OpenGLShader::set_float3(const std::string& name, const glm::vec3& value) -> void
- {
- upload_uniform_float3(name, value);
- }
-
- auto OpenGLShader::set_float4(const std::string& name, const glm::vec4& value) -> void
- {
- upload_uniform_float4(name, value);
- }
-
- auto OpenGLShader::set_mat4(const std::string& name, const glm::mat4& value) -> void
- {
- upload_uniform_mat4(name, value);
- }
-
- auto OpenGLShader::upload_uniform_int(const std::string& name, int value) -> void
- {
- int location = glGetUniformLocation(m_renderer_id, name.c_str());
- glUniform1i(location, value);
- }
-
- auto OpenGLShader::upload_uniform_int_array(const std::string& name, int* values, uint32_t count) -> void
- {
- int location = glGetUniformLocation(m_renderer_id, name.c_str());
- glUniform1iv(location, count, values);
- }
-
- auto OpenGLShader::upload_uniform_float(const std::string& name, float value) -> void
- {
- int location = glGetUniformLocation(m_renderer_id, name.c_str());
- glUniform1f(location, value);
- }
-
- auto OpenGLShader::upload_uniform_float2(const std::string& name, const glm::vec2& value) -> void
- {
- int location = glGetUniformLocation(m_renderer_id, name.c_str());
- glUniform2f(location, value.x, value.y);
- }
-
- auto OpenGLShader::upload_uniform_float3(const std::string& name, const glm::vec3& value) -> void
- {
- int location = glGetUniformLocation(m_renderer_id, name.c_str());
- glUniform3f(location, value.x, value.y, value.z);
- }
-
- auto OpenGLShader::upload_uniform_float4(const std::string& name, const glm::vec4& value) -> void
- {
- int location = glGetUniformLocation(m_renderer_id, name.c_str());
- glUniform4f(location, value.x, value.y, value.z, value.w);
- }
-
- auto OpenGLShader::upload_uniform_mat3(const std::string& name, const glm::mat3& matrix) -> void
- {
- int location = glGetUniformLocation(m_renderer_id, name.c_str());
- glUniformMatrix3fv(location, 1, m_is_slang ? GL_TRUE : GL_FALSE, glm::value_ptr(matrix));
- }
-
- auto OpenGLShader::upload_uniform_mat4(const std::string& name, const glm::mat4& matrix) -> void
- {
- int location = glGetUniformLocation(m_renderer_id, name.c_str());
- glUniformMatrix4fv(location, 1, m_is_slang ? GL_TRUE : GL_FALSE, glm::value_ptr(matrix));
- }
-
- auto OpenGLShader::dispatch(uint32_t x, uint32_t y, uint32_t z) -> void
- {
- // Compute shaders require OpenGL 4.3+. On drivers that cap out earlier
- // (e.g. macOS, which is frozen at 4.1) glDispatchCompute is never
- // loaded and the pointer is null. Guard so we no-op instead of crash.
- if (m_renderer_id == 0 || glDispatchCompute == nullptr)
- return;
- glDispatchCompute(x, y, z);
- }
-
- auto OpenGLShader::dispatch_indirect(uint32_t offset) -> void
- {
- if (m_renderer_id == 0 || glDispatchComputeIndirect == nullptr)
- return;
- glDispatchComputeIndirect(offset);
- }
-
- auto OpenGLShader::memory_barrier(uint32_t barriers) -> void
- {
- if (glMemoryBarrier == nullptr)
- return;
- glMemoryBarrier(barriers);
- }
-};
diff --git a/src/platform/opengl/opengl_shader.h b/src/platform/opengl/opengl_shader.h
deleted file mode 100644
index 289bfac..0000000
--- a/src/platform/opengl/opengl_shader.h
+++ /dev/null
@@ -1,58 +0,0 @@
-#pragma once
-
-#include "rendering/shader.h"
-
-#include <unordered_map>
-#include <glm/glm.hpp>
-
-namespace Donut
-{
- class OpenGLShader
- : public Shader
- {
- public:
- OpenGLShader(const std::string& filepath);
- OpenGLShader(const std::string& name, const std::string& vertex_src, const std::string& fragment_src);
- OpenGLShader(const std::string& name, const std::string& compute_src);
- virtual ~OpenGLShader();
-
- virtual auto bind() const -> void override;
- virtual auto unbind() const -> void override;
-
- virtual auto set_int( const std::string& name, int value) -> void override;
- virtual auto set_int_array(const std::string& name, int* values, uint32_t count) -> void override;
- virtual auto set_float( const std::string& name, float value) -> void override;
- virtual auto set_float2( const std::string& name, const glm::vec2& value) -> void override;
- virtual auto set_float3( const std::string& name, const glm::vec3& value) -> void override;
- virtual auto set_float4( const std::string& name, const glm::vec4& value) -> void override;
- virtual auto set_mat4( const std::string& name, const glm::mat4& value) -> void override;
-
- virtual auto dispatch(uint32_t x, uint32_t y = 1, uint32_t z = 1) -> void override;
- virtual auto dispatch_indirect(uint32_t offset = 0) -> void override;
- virtual auto memory_barrier(uint32_t barriers) -> void override;
-
- virtual auto get_name() const -> const std::string& override{ return m_name; }
- virtual auto get_renderer_id() const -> uint32_t override{ return m_renderer_id; }
-
- auto upload_uniform_int( const std::string& name, int value) -> void;
- auto upload_uniform_int_array(const std::string& name, int* values, uint32_t count) -> void;
- auto upload_uniform_float( const std::string& name, float value) -> void;
- auto upload_uniform_float2( const std::string& name, const glm::vec2& value) -> void;
- auto upload_uniform_float3( const std::string& name, const glm::vec3& value) -> void;
- auto upload_uniform_float4( const std::string& name, const glm::vec4& value) -> void;
- auto upload_uniform_mat3( const std::string& name, const glm::mat3& matrix) -> void;
- auto upload_uniform_mat4( const std::string& name, const glm::mat4& matrix) -> void;
-
- private:
- auto read_file(const std::string& filepath) -> std::string;
- auto pre_process(const std::string& source) -> std::unordered_map<uint32_t, std::string>;
- auto compile(const std::unordered_map<uint32_t, std::string>& shader_sources) -> void;
- private:
- uint32_t m_renderer_id = 0;
- std::string m_name;
- // True when loaded from a Slang-compiled GLSL. Slang expects row-major
- // matrix data, so matrix uniforms are transposed on upload (glm is
- // column-major) to keep all matrix math correct.
- bool m_is_slang = false;
- };
-};
diff --git a/src/platform/opengl/opengl_texture.cpp b/src/platform/opengl/opengl_texture.cpp
deleted file mode 100644
index 6bcb9cd..0000000
--- a/src/platform/opengl/opengl_texture.cpp
+++ /dev/null
@@ -1,272 +0,0 @@
-#include "opengl_texture.h"
-
-#include "rendering/shader.h"
-
-#define STB_IMAGE_IMPLEMENTATION
-#include "stb_image.h"
-#include <glm/glm.hpp>
-#include <glm/gtc/matrix_transform.hpp>
-#include <glm/gtc/type_ptr.hpp>
-
-// NOTE: This file targets OpenGL 4.1 (the maximum macOS exposes). It uses the
-// classic bind-based texture API rather than 4.5 Direct State Access
-// (glCreateTextures / glTextureStorage2D / glTextureParameteri / glBindTextureUnit),
-// none of which exist on macOS.
-
-namespace Donut
-{
- OpenGLTexture2D::OpenGLTexture2D(uint32_t width, uint32_t height)
- : m_width(width), m_height(height)
- {
- m_internal_format = GL_RGBA8;
- m_data_format = GL_RGBA;
-
- glGenTextures(1, &m_renderer_id);
- glBindTexture(GL_TEXTURE_2D, m_renderer_id);
- glTexImage2D(GL_TEXTURE_2D, 0, m_internal_format, m_width, m_height, 0, m_data_format, GL_UNSIGNED_BYTE, nullptr);
-
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
- }
-
- OpenGLTexture2D::OpenGLTexture2D(const std::string& path)
- : m_path(path)
- {
- m_width = 1;
- m_height = 1;
- m_internal_format = GL_RGBA8;
- m_data_format = GL_RGBA;
-
- glGenTextures(1, &m_renderer_id);
- glBindTexture(GL_TEXTURE_2D, m_renderer_id);
- glTexImage2D(GL_TEXTURE_2D, 0, m_internal_format, m_width, m_height, 0, m_data_format, GL_UNSIGNED_BYTE, nullptr);
-
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
- uint32_t white_pixel = 0xFFFFFFFF;
- glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, m_width, m_height, m_data_format, GL_UNSIGNED_BYTE, &white_pixel);
-
- DONUT_INFO("Created default texture (stb_image not available for loading: ", path, ")");
- }
-
- OpenGLTexture2D::~OpenGLTexture2D()
- {
- glDeleteTextures(1, &m_renderer_id);
- }
-
- auto OpenGLTexture2D::set_data(void* data, uint32_t size) -> void
- {
- uint32_t bpp = m_data_format == GL_RGBA ? 4 : 3;
- if (size != m_width * m_height * bpp)
- {
- DONUT_ERROR("Data must be entire texture!");
- return;
- }
-
- glBindTexture(GL_TEXTURE_2D, m_renderer_id);
- glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, m_width, m_height, m_data_format, GL_UNSIGNED_BYTE, data);
- }
-
- auto OpenGLTexture2D::bind(uint32_t slot) const -> void
- {
- glActiveTexture(GL_TEXTURE0 + slot);
- glBindTexture(GL_TEXTURE_2D, m_renderer_id);
- }
-
- auto OpenGLTexture2D::bind_as_image(uint32_t slot, bool read_only) const -> void
- {
- // Image load/store is OpenGL 4.2 and unavailable on macOS. Guard the
- // function pointer so this degrades to a no-op instead of crashing.
- if (glBindImageTexture == nullptr)
- return;
- GLenum access = read_only ? GL_READ_ONLY : GL_WRITE_ONLY;
- glBindImageTexture(slot, m_renderer_id, 0, GL_FALSE, 0, access, m_internal_format);
- }
-
- OpenGLCubemapTexture::OpenGLCubemapTexture(uint32_t width, uint32_t height)
- : m_width(width), m_height(height)
- {
- m_internal_format = GL_RGBA16F;
- m_data_format = GL_RGBA;
-
- glGenTextures(1, &m_renderer_id);
- glBindTexture(GL_TEXTURE_CUBE_MAP, m_renderer_id);
- for (uint32_t i = 0; i < 6; ++i)
- glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, m_internal_format, m_width, m_height, 0, m_data_format, GL_FLOAT, nullptr);
-
- glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
- }
-
- OpenGLCubemapTexture::OpenGLCubemapTexture(const std::string& path)
- : m_path(path)
- {
- m_width = 1024;
- m_height = 1024;
- m_internal_format = GL_RGBA16F;
- m_data_format = GL_RGBA;
-
- glGenTextures(1, &m_renderer_id);
- glBindTexture(GL_TEXTURE_CUBE_MAP, m_renderer_id);
- for (uint32_t i = 0; i < 6; ++i)
- glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, m_internal_format, m_width, m_height, 0, m_data_format, GL_FLOAT, nullptr);
-
- glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
-
- LoadHDRI(path);
- }
-
- OpenGLCubemapTexture::~OpenGLCubemapTexture()
- {
- glDeleteTextures(1, &m_renderer_id);
- }
-
- auto OpenGLCubemapTexture::LoadHDRI(const std::string& path) -> void
- {
- stbi_set_flip_vertically_on_load(true);
- int width, height, channels;
- float* hdr_data = stbi_loadf(path.c_str(), &width, &height, &channels, 3);
-
- if (!hdr_data)
- {
- DONUT_ERROR("Failed to load HDRI: {}", path);
- float default_sky[6 * 4] =
- {
- 0.5f, 0.7f, 1.0f, 1.0f, // Right
- 0.5f, 0.7f, 1.0f, 1.0f, // Left
- 0.5f, 0.7f, 1.0f, 1.0f, // Top
- 0.5f, 0.7f, 1.0f, 1.0f, // Bottom
- 0.5f, 0.7f, 1.0f, 1.0f, // Front
- 0.5f, 0.7f, 1.0f, 1.0f // Back
- };
-
- glBindTexture(GL_TEXTURE_CUBE_MAP, m_renderer_id);
- for (int i = 0; i < 6; ++i)
- glTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, 0, 0, 1, 1, GL_RGBA, GL_FLOAT, &default_sky[i * 4]);
- return;
- }
-
- convert_equirectangular_to_cubemap(hdr_data, width, height);
- stbi_image_free(hdr_data);
-
- DONUT_INFO("Successfully loaded HDRI: {} ({}x{})", path, width, height);
- }
-
- auto OpenGLCubemapTexture::convert_equirectangular_to_cubemap(float* hdr_data, int width, int height) -> void
- {
- uint32_t capture_fbo, capture_rbo;
- glGenFramebuffers(1, &capture_fbo);
- glGenRenderbuffers(1, &capture_rbo);
-
- glBindFramebuffer(GL_FRAMEBUFFER, capture_fbo);
- glBindRenderbuffer(GL_RENDERBUFFER, capture_rbo);
- glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, m_width, m_height);
- glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, capture_rbo);
-
- uint32_t hdr_texture;
- glGenTextures(1, &hdr_texture);
- glBindTexture(GL_TEXTURE_2D, hdr_texture);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB16F, width, height, 0, GL_RGB, GL_FLOAT, hdr_data);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
- auto equirect_shader = Shader::create("assets/shaders/EquirectToCubemap.glsl");
- if (!equirect_shader)
- {
- DONUT_ERROR("Failed to create equirectangular to cubemap shader");
- return;
- }
-
- uint32_t shader_program = equirect_shader->get_renderer_id();
-
- float vertices[] =
- {
- -1.0f, 1.0f, -1.0f, -1.0f, -1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, -1.0f, 1.0f, -1.0f,
- -1.0f, -1.0f, 1.0f, -1.0f, -1.0f, -1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, -1.0f, 1.0f,
- 1.0f, -1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, -1.0f, 1.0f, -1.0f, -1.0f,
- -1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f,
- -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, -1.0f,
- -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f
- };
-
- uint32_t cube_vao, cube_vbo;
- glGenVertexArrays(1, &cube_vao);
- glGenBuffers(1, &cube_vbo);
- glBindVertexArray(cube_vao);
- glBindBuffer(GL_ARRAY_BUFFER, cube_vbo);
- glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
- glEnableVertexAttribArray(0);
- glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
-
- glm::mat4 capture_projection = glm::perspective(glm::radians(90.0f), 1.0f, 0.1f, 10.0f);
- glm::mat4 capture_views[] =
- {
- glm::lookAt(glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3( 1.0f, 0.0f, 0.0f), glm::vec3(0.0f, -1.0f, 0.0f)),
- glm::lookAt(glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(-1.0f, 0.0f, 0.0f), glm::vec3(0.0f, -1.0f, 0.0f)),
- glm::lookAt(glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3( 0.0f, 1.0f, 0.0f), glm::vec3(0.0f, 0.0f, 1.0f)),
- glm::lookAt(glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3( 0.0f, -1.0f, 0.0f), glm::vec3(0.0f, 0.0f, -1.0f)),
- glm::lookAt(glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3( 0.0f, 0.0f, 1.0f), glm::vec3(0.0f, -1.0f, 0.0f)),
- glm::lookAt(glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3( 0.0f, 0.0f, -1.0f), glm::vec3(0.0f, -1.0f, 0.0f))
- };
-
- glUseProgram(shader_program);
- glUniform1i(glGetUniformLocation(shader_program, "u_EquirectangularMap"), 0);
- // EquirectToCubemap is authored in Slang (row-major); transpose glm's
- // column-major matrices on upload (GL_TRUE) to match.
- glUniformMatrix4fv(glGetUniformLocation(shader_program, "u_Projection"), 1, GL_TRUE, &capture_projection[0][0]);
- glActiveTexture(GL_TEXTURE0);
- glBindTexture(GL_TEXTURE_2D, hdr_texture);
-
- glViewport(0, 0, m_width, m_height);
- glBindFramebuffer(GL_FRAMEBUFFER, capture_fbo);
- for (unsigned int i = 0; i < 6; ++i)
- {
- glUniformMatrix4fv(glGetUniformLocation(shader_program, "u_View"), 1, GL_TRUE, &capture_views[i][0][0]);
- glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, m_renderer_id, 0);
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- glBindVertexArray(cube_vao);
- glDrawArrays(GL_TRIANGLES, 0, 36);
- }
- glBindVertexArray(0);
- glBindFramebuffer(GL_FRAMEBUFFER, 0);
-
- glDeleteVertexArrays(1, &cube_vao);
- glDeleteBuffers(1, &cube_vbo);
- glDeleteTextures(1, &hdr_texture);
- glDeleteFramebuffers(1, &capture_fbo);
- glDeleteRenderbuffers(1, &capture_rbo);
- }
-
- auto OpenGLCubemapTexture::set_data(void* data, uint32_t size) -> void
- {
- DONUT_WARN("set_data not implemented for cubemaps");
- }
-
- auto OpenGLCubemapTexture::bind(uint32_t slot) const -> void
- {
- glActiveTexture(GL_TEXTURE0 + slot);
- glBindTexture(GL_TEXTURE_CUBE_MAP, m_renderer_id);
- }
-
- auto OpenGLCubemapTexture::bind_as_image(uint32_t slot, bool read_only) const -> void
- {
- if (glBindImageTexture == nullptr)
- return;
- GLenum access = read_only ? GL_READ_ONLY : GL_WRITE_ONLY;
- glBindImageTexture(slot, m_renderer_id, 0, GL_TRUE, 0, access, m_internal_format);
- }
-};
diff --git a/src/platform/opengl/opengl_texture.h b/src/platform/opengl/opengl_texture.h
deleted file mode 100644
index 7aa87ea..0000000
--- a/src/platform/opengl/opengl_texture.h
+++ /dev/null
@@ -1,68 +0,0 @@
-#pragma once
-
-#include "rendering/texture.h"
-#include "core/log.h"
-
-#include <glad/glad.h>
-
-namespace Donut
-{
- class OpenGLTexture2D
- : public Texture2D
- {
- public:
- OpenGLTexture2D(uint32_t width, uint32_t height);
- OpenGLTexture2D(const std::string& path);
- virtual ~OpenGLTexture2D();
-
- virtual auto get_width() const -> uint32_t override{ return m_width; }
- virtual auto get_height() const -> uint32_t override{ return m_height; }
- virtual auto get_renderer_id() const -> uint32_t override{ return m_renderer_id; }
-
- virtual auto set_data(void* data, uint32_t size) -> void override;
- virtual auto bind(uint32_t slot = 0) const -> void override;
- virtual auto bind_as_image(uint32_t slot = 0, bool read_only = false) const -> void override;
-
- virtual bool operator==(const Texture& other) const override
- {
- return m_renderer_id == other.get_renderer_id();
- }
-
- private:
- std::string m_path;
- uint32_t m_width, m_height;
- uint32_t m_renderer_id;
- GLenum m_internal_format, m_data_format;
- };
-
- class OpenGLCubemapTexture
- : public CubemapTexture
- {
- public:
- OpenGLCubemapTexture(uint32_t width, uint32_t height);
- OpenGLCubemapTexture(const std::string& path);
- virtual ~OpenGLCubemapTexture();
-
- virtual auto get_width() const -> uint32_t override{ return m_width; }
- virtual auto get_height() const -> uint32_t override{ return m_height; }
- virtual auto get_renderer_id() const -> uint32_t override{ return m_renderer_id; }
-
- virtual auto set_data(void* data, uint32_t size) -> void override;
- virtual auto bind(uint32_t slot = 0) const -> void override;
- virtual auto bind_as_image(uint32_t slot = 0, bool read_only = false) const -> void override;
-
- virtual bool operator==(const Texture& other) const override
- {
- return m_renderer_id == other.get_renderer_id();
- }
-
- private:
- void LoadHDRI(const std::string& path);
- auto convert_equirectangular_to_cubemap(float* hdr_data, int width, int height) -> void;
-
- std::string m_path;
- uint32_t m_width, m_height;
- uint32_t m_renderer_id;
- GLenum m_internal_format, m_data_format;
- };
-}
diff --git a/src/platform/opengl/opengl_uniform_buffer.cpp b/src/platform/opengl/opengl_uniform_buffer.cpp
deleted file mode 100644
index 9b3b6d2..0000000
--- a/src/platform/opengl/opengl_uniform_buffer.cpp
+++ /dev/null
@@ -1,29 +0,0 @@
-#include "opengl_uniform_buffer.h"
-
-namespace Donut
-{
- OpenGLUniformBuffer::OpenGLUniformBuffer(uint32_t size, uint32_t binding)
- : m_size(size), m_binding(binding)
- {
- glGenBuffers(1, &m_renderer_id);
- glBindBuffer(GL_UNIFORM_BUFFER, m_renderer_id);
- glBufferData(GL_UNIFORM_BUFFER, size, nullptr, GL_DYNAMIC_DRAW);
- glBindBufferBase(GL_UNIFORM_BUFFER, binding, m_renderer_id);
- }
-
- OpenGLUniformBuffer::~OpenGLUniformBuffer()
- {
- glDeleteBuffers(1, &m_renderer_id);
- }
-
- auto OpenGLUniformBuffer::set_data(const void* data, uint32_t size, uint32_t offset) -> void
- {
- glBindBuffer(GL_UNIFORM_BUFFER, m_renderer_id);
- glBufferSubData(GL_UNIFORM_BUFFER, offset, size, data);
- }
-
- auto OpenGLUniformBuffer::bind(uint32_t binding) -> void
- {
- glBindBufferBase(GL_UNIFORM_BUFFER, binding, m_renderer_id);
- }
-};
diff --git a/src/platform/opengl/opengl_uniform_buffer.h b/src/platform/opengl/opengl_uniform_buffer.h
deleted file mode 100644
index db137a0..0000000
--- a/src/platform/opengl/opengl_uniform_buffer.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#pragma once
-
-#include "rendering/uniform_buffer.h"
-#include <glad/glad.h>
-
-namespace Donut
-{
- class OpenGLUniformBuffer : public UniformBuffer
- {
- public:
- OpenGLUniformBuffer(uint32_t size, uint32_t binding);
- virtual ~OpenGLUniformBuffer();
-
- virtual auto set_data(const void* data, uint32_t size, uint32_t offset = 0) -> void override;
- virtual auto bind(uint32_t binding) -> void override;
- private:
- uint32_t m_renderer_id = 0;
- uint32_t m_size = 0;
- uint32_t m_binding = 0;
- };
-};
diff --git a/src/platform/opengl/opengl_vertex_array.cpp b/src/platform/opengl/opengl_vertex_array.cpp
deleted file mode 100644
index 01e6f56..0000000
--- a/src/platform/opengl/opengl_vertex_array.cpp
+++ /dev/null
@@ -1,58 +0,0 @@
-#include <glad/glad.h>
-
-#include "opengl_vertex_array.h"
-#include "rendering/vertex_buffer.h"
-#include "rendering/index_buffer.h"
-
-namespace Donut
-{
- OpenGLVertexArray::OpenGLVertexArray()
- {
- // glCreateVertexArrays is 4.5 DSA; macOS caps at 4.1. glGenVertexArrays
- // reserves the name and the VAO is created on first bind (done below).
- glGenVertexArrays(1, &m_renderer_id);
- }
-
- OpenGLVertexArray::~OpenGLVertexArray()
- {
- glDeleteVertexArrays(1, &m_renderer_id);
- }
-
- auto OpenGLVertexArray::bind() const -> void
- {
- glBindVertexArray(m_renderer_id);
- }
-
- auto OpenGLVertexArray::unbind() const -> void
- {
- glBindVertexArray(0);
- }
-
- auto OpenGLVertexArray::add_vertex_buffer(const Ref<VertexBuffer>& vertex_buffer) -> void
- {
- glBindVertexArray(m_renderer_id);
- vertex_buffer->bind();
-
- const auto& layout = vertex_buffer->get_layout();
- for (const auto& element : layout.get_elements())
- {
- glEnableVertexAttribArray(m_vertex_buffer_index);
- glVertexAttribPointer(m_vertex_buffer_index,
- element.count,
- element.type,
- element.normalized ? GL_TRUE : GL_FALSE,
- layout.get_stride(),
- reinterpret_cast<const void*>(static_cast<uintptr_t>(element.offset)));
- m_vertex_buffer_index++;
- }
-
- m_vertex_buffers.push_back(vertex_buffer);
- }
-
- auto OpenGLVertexArray::set_index_buffer(const Ref<IndexBuffer>& index_buffer) -> void
- {
- glBindVertexArray(m_renderer_id);
- index_buffer->bind();
- m_index_buffer = index_buffer;
- }
-};
diff --git a/src/platform/opengl/opengl_vertex_array.h b/src/platform/opengl/opengl_vertex_array.h
deleted file mode 100644
index 5115830..0000000
--- a/src/platform/opengl/opengl_vertex_array.h
+++ /dev/null
@@ -1,41 +0,0 @@
-#pragma once
-
-#include "core/memory.h"
-
-#include "rendering/vertex_array.h"
-#include "rendering/vertex_buffer.h"
-#include "rendering/index_buffer.h"
-
-#include <vector>
-
-namespace Donut
-{
- class OpenGLVertexArray
- : public VertexArray
- {
- public:
- OpenGLVertexArray();
- virtual ~OpenGLVertexArray();
-
- virtual auto bind() const -> void override;
- virtual auto unbind() const -> void override;
-
- virtual auto add_vertex_buffer(const Ref<VertexBuffer>& vertex_buffer) -> void override;
- virtual auto set_index_buffer(const Ref<IndexBuffer>& index_buffer) -> void override;
-
- virtual const std::vector<Ref<VertexBuffer>>& get_vertex_buffers() const override
- {
- return m_vertex_buffers;
- }
-
- virtual const Ref<IndexBuffer>& get_index_buffer() const override
- {
- return m_index_buffer;
- }
- private:
- uint32_t m_renderer_id;
- uint32_t m_vertex_buffer_index = 0;
- std::vector<Ref<VertexBuffer>> m_vertex_buffers;
- Ref<IndexBuffer> m_index_buffer;
- };
-};
diff --git a/src/platform/opengl/opengl_vertex_buffer.cpp b/src/platform/opengl/opengl_vertex_buffer.cpp
deleted file mode 100644
index 5cd4b82..0000000
--- a/src/platform/opengl/opengl_vertex_buffer.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-#include "opengl_vertex_buffer.h"
-#include "rendering/vertex_buffer.h"
-
-#include <glad/glad.h>
-
-namespace Donut
-{
- OpenGLVertexBuffer::OpenGLVertexBuffer(const void* data, uint32_t size)
- {
- glGenBuffers(1, &m_renderer_id); // glCreateBuffers is 4.5 DSA; unavailable on macOS 4.1
- glBindBuffer(GL_ARRAY_BUFFER, m_renderer_id);
- glBufferData(GL_ARRAY_BUFFER, size, data, GL_STATIC_DRAW);
- }
-
- OpenGLVertexBuffer::~OpenGLVertexBuffer()
- {
- glDeleteBuffers(1, &m_renderer_id);
- }
-
- auto OpenGLVertexBuffer::bind() const -> void
- {
- glBindBuffer(GL_ARRAY_BUFFER, m_renderer_id);
- }
-
- auto OpenGLVertexBuffer::unbind() const -> void
- {
- glBindBuffer(GL_ARRAY_BUFFER, 0);
- }
-
- auto OpenGLVertexBuffer::set_data(const void* data, uint32_t size) -> void
- {
- glBindBuffer(GL_ARRAY_BUFFER, m_renderer_id);
- glBufferSubData(GL_ARRAY_BUFFER, 0, size, data);
- }
-};
diff --git a/src/platform/opengl/opengl_vertex_buffer.h b/src/platform/opengl/opengl_vertex_buffer.h
deleted file mode 100644
index df2e0e6..0000000
--- a/src/platform/opengl/opengl_vertex_buffer.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#pragma once
-
-#include "rendering/vertex_buffer.h"
-
-namespace Donut
-{
- class OpenGLVertexBuffer
- : public VertexBuffer
- {
- public:
- OpenGLVertexBuffer(const void* data, uint32_t size);
- virtual ~OpenGLVertexBuffer();
-
- virtual auto bind() const -> void override;
- virtual auto unbind() const -> void override;
- virtual auto set_data(const void* data, uint32_t size) -> void override;
-
- virtual auto get_layout() const -> const VertexBufferLayout& override{ return m_layout; }
- virtual auto set_layout(const VertexBufferLayout& layout) -> void override{ m_layout = layout; }
-
- private:
- uint32_t m_renderer_id;
- VertexBufferLayout m_layout;
- };
-};