switch to software renderer

1 files changed, 0 insertions, 220 deletions

diff --git a/src/renderer/opengl/GlRenderer.cpp b/src/renderer/opengl/GlRenderer.cpp
deleted file mode 100644
index 5d7c985..0000000
--- a/src/renderer/opengl/GlRenderer.cpp
+++ /dev/null
@@ -1,220 +0,0 @@
-#include <basic/defs.hpp>
-#include <iterator>
-#include <renderer/RenderGroup.hpp>
-#include <renderer/opengl/GlRenderer.hpp>
-#include <basic/math.hpp>
-#include <renderer/Renderer.hpp>
-#include <renderer/opengl/GlVertexBuffer.hpp>
-
-#include <SDL3/SDL.h>
-#include <SDL3/SDL_video.h>
-#include <GL/glew.h>
-#include <GL/gl.h>
-#include <assert.h>
-#include <cstdio>
-
-void GLAPIENTRY
-MessageCallback(GLenum source,
-                GLenum type,
-                GLuint id,
-                GLenum severity,
-                GLsizei length,
-                const GLchar* message,
-                const void* userParam)
-{
-    fprintf(stderr, "GL CALLBACK: %s, type = 0x%x, severity = 0x%x, message = %s\n",
-            type == GL_DEBUG_TYPE_ERROR ? "** GL ERROR **" : "",
-            type,
-            severity,
-            message
-    );
-}
-
-GlRenderer::~GlRenderer() {
-    SDL_GL_DestroyContext(m_Context);
-}
-
-GlRenderer::GlRenderer(SDL_Window *window)
-        : m_Window(window), m_Context(nullptr) {
-}
-
-bool GlRenderer::Init() {
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
-    SDL_GLContext sdl_gl_context = SDL_GL_CreateContext(m_Window);
-    if (!sdl_gl_context) {
-        return false;
-    }
-
-    GLenum err = glewInit();
-    if (GLEW_OK != err)
-    {
-        fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
-        SDL_GL_DestroyContext(sdl_gl_context);
-        return false;
-    }
-
-#if 0
-    glEnable(GL_DEBUG_OUTPUT);
-    glDebugMessageCallback(MessageCallback, 0);
-#endif
-
-    GLuint vertex_array;
-    glGenVertexArrays(1, &vertex_array);
-    glBindVertexArray(vertex_array);
-
-
-    // init rectangle rendering
-    if (!m_RectangleShader.InitProgram()) {
-        return false;
-    }
-    m_RectangleVertexBuffer.Init();
-    m_RectangleIndexBuffer.Init();
-
-
-    // init text rendering
-    if (!m_TextShader.InitProgram()) {
-        return false;
-    }
-    m_TextVertexBuffer.Init();
-    m_TextIndexBuffer.Init();
-
-
-    m_Context = sdl_gl_context;
-    return true;
-}
-
-void GlRenderer::Draw(RenderGroup& render_group) {
-    render_group.Sort();
-
-    float camera_width = render_group.m_CameraWidth;
-    float camera_height = render_group.m_CameraHeight;
-
-
-    glViewport(0, 0, render_group.m_ScreenWidth, render_group.m_ScreenHeight);
-    glClearColor(render_group.m_ClearColor.x,
-                 render_group.m_ClearColor.y,
-                 render_group.m_ClearColor.z,
-                 1.0f);
-    glClear(GL_COLOR_BUFFER_BIT);
-
-
-    // viewport space
-    float scale = render_group.GetScale();
-    int32_t viewport_width  = static_cast<int32_t>(camera_width * scale);
-    int32_t viewport_height = static_cast<int32_t>(camera_height * scale);
-    int32_t viewport_x0 = (render_group.m_ScreenWidth - viewport_width) / 2;
-    int32_t viewport_y0 = (render_group.m_ScreenHeight - viewport_height) / 2;
-    glViewport(viewport_x0, viewport_y0, viewport_width, viewport_height);
-
-
-    // draw batches
-    float last_z = -1;
-    for (auto [z, entity_index] : render_group.m_RSortEntries) {
-        REntity& render_entity = render_group.m_REntities[entity_index];
-        switch (render_entity.type) {
-            case REntityType_Rectangle: {
-                // clip space (from camera space to [-1, 1] for pos and [0, 2] for dim)
-                V3F32 pos = render_entity.rect.pos;
-                V2F32 dim = render_entity.rect.dim;
-                pos.x = 2*(pos.x / camera_width) - 1;
-                pos.y = 2*(pos.y / camera_height) - 1;
-                dim.x = 2*(dim.x / camera_width);
-                dim.y = 2*(dim.y / camera_height);
-
-                if (render_entity.rect.pos.z > last_z) {
-                    DrawBatch();
-                    last_z = z;
-                }
-
-                m_RectangleVertexBuffer.PushRectangle(pos, dim, render_entity.rect.color);
-                m_RectangleIndexBuffer.PushRectangle();
-            }
-
-            case REntityType_Bitmap: {
-                REntity_Bitmap& bitmap = render_entity.bitmap;
-
-                // clip space (from camera space to [-1, 1] for pos and [0, 2] for dim)
-                V3F32 pos = render_entity.bitmap.pos;
-                pos.x = 2*(pos.x / camera_width) - 1;
-                pos.y = 2*(pos.y / camera_height) - 1;
-
-#if 0
-
-                // create setup texture
-                unsigned int texture_id;
-                glGenTextures(1, &texture_id);  
-                glBindTexture(GL_TEXTURE_2D, texture_id);  
-                glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, bitmap.width, bitmap.height, 0, GL_RGB, GL_UNSIGNED_BYTE, bitmap.data);
-
-                glGenerateMipmap(GL_TEXTURE_2D);
-
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);	
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
-                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-
-                // apply texture
-                glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)(6 * sizeof(float)));
-                glEnableVertexAttribArray(2);  
-
-                // delete texture
-                glDeleteTextures(1, &texture_id);
-
-
-
-                // 1) set vertex buffer
-                // 2) set texture coordinates
-                pos.x = 2*(pos.x / camera_width) - 1;
-                pos.y = 2*(pos.y / camera_height) - 1;
-                dim.x = 2*(dim.x / camera_width);
-                dim.y = 2*(dim.y / camera_height);
-                if (render_entity.rect.pos.z > last_z) {
-                    DrawBatch();
-                    last_z = z;
-                }
-#endif
-
-
-            } break;
-
-            InvalidDefaultCase;
-        }
-    }
-
-    DrawBatch();
-}
-
-void GlRenderer::Present() {
-    SDL_GL_SwapWindow(m_Window);
-}
-
-void GlRenderer::DrawBatch() {
-    int32_t rectangle_index_count = static_cast<int32_t>(m_RectangleIndexBuffer.GetCount());
-    int32_t text_index_count = static_cast<int32_t>(m_TextIndexBuffer.GetCount());
-
-    if (rectangle_index_count) {
-        m_RectangleVertexBuffer.TransferData();
-        m_RectangleIndexBuffer.TransferData();
-        m_RectangleShader.UseProgram();
-
-        glDrawElements(GL_TRIANGLES, rectangle_index_count, GL_UNSIGNED_INT, 0);
-
-        m_RectangleVertexBuffer.Reset();
-        m_RectangleIndexBuffer.Reset();
-    }
-    
-    if (text_index_count) {
-        m_TextVertexBuffer.TransferData();
-        m_TextIndexBuffer.TransferData();
-        m_TextShader.UseProgram();
-
-        glDrawElements(GL_TRIANGLES, text_index_count, GL_UNSIGNED_INT, 0);
-
-        m_TextVertexBuffer.Reset();
-        m_TextIndexBuffer.Reset();
-    }
-}
-
-