From 5ea6c14c0e14bacee766ce1280ab2c71564e05ec Mon Sep 17 00:00:00 2001 From: hachem Date: Sun, 23 Aug 2026 21:55:36 +0200 Subject: [feat]: implement ui layer arch --- src/rendering/texture.cpp | 296 ---------------------------------------------- 1 file changed, 296 deletions(-) delete mode 100644 src/rendering/texture.cpp (limited to 'src/rendering/texture.cpp') diff --git a/src/rendering/texture.cpp b/src/rendering/texture.cpp deleted file mode 100644 index 12e07f1..0000000 --- a/src/rendering/texture.cpp +++ /dev/null @@ -1,296 +0,0 @@ -#include "texture.h" - -#include "shader.h" -#include "core/log.h" - -#include - -#define STB_IMAGE_IMPLEMENTATION -#include "stb_image.h" -#include -#include -#include - -// 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. It also hosts the single STB_IMAGE_IMPLEMENTATION -// for the whole build (the Vulkan backend links stbi_loadf from here too). - -namespace Donut -{ - Texture2D::Texture2D(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); - } - - Texture2D::Texture2D(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, ")"); - } - - Texture2D::~Texture2D() - { - glDeleteTextures(1, &m_renderer_id); - } - - auto Texture2D::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 Texture2D::bind(uint32_t slot) const -> void - { - glActiveTexture(GL_TEXTURE0 + slot); - glBindTexture(GL_TEXTURE_2D, m_renderer_id); - } - - auto Texture2D::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); - } - - CubemapTexture::CubemapTexture(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); - } - - CubemapTexture::CubemapTexture(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); - } - - CubemapTexture::~CubemapTexture() - { - glDeleteTextures(1, &m_renderer_id); - } - - auto CubemapTexture::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 CubemapTexture::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 CubemapTexture::set_data(void* data, uint32_t size) -> void - { - DONUT_WARN("set_data not implemented for cubemaps"); - } - - auto CubemapTexture::bind(uint32_t slot) const -> void - { - glActiveTexture(GL_TEXTURE0 + slot); - glBindTexture(GL_TEXTURE_CUBE_MAP, m_renderer_id); - } - - auto CubemapTexture::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); - } - - auto Texture2D::create(uint32_t width, uint32_t height) -> Ref - { - return create_ref(width, height); - } - - auto Texture2D::create(const std::string& path) -> Ref - { - return create_ref(path); - } - - auto CubemapTexture::create(uint32_t width, uint32_t height) -> Ref - { - return create_ref(width, height); - } - - auto CubemapTexture::create_from_hdri(const std::string& path) -> Ref - { - return create_ref(path); - } -}; -- cgit v1.3