mirror of
https://github.com/whoahq/whoa.git
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706c8903a1
* chore(build): add vendored SDL 3.0.0 library * chore(build): add vendored glew-cmake-2.2.0 library * feat(console): in the presence of -opengl launch flag, change GxApi to OpenGl * feat(gx): add uncompleted CGxDeviceGLSDL targeting Windows and Linux * chore(build): change SDL3 linkage from shared (bad) to to static (good)
132 lines
3.5 KiB
C++
132 lines
3.5 KiB
C++
#include "gx/glsdl/GLSDLWindow.hpp"
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#include <bc/Debug.hpp>
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static bool s_GLSDL_Initialized = false;
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void GLSDLWindow::Create(const char* title, const GLSDLWindowRect& rect, GLTextureFormat depthFormat, uint32_t sampleCount) {
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BLIZZARD_ASSERT(this->m_sdlWindow == nullptr);
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if (!s_GLSDL_Initialized) {
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// Initialize SDL video context
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SDL_Init(SDL_INIT_VIDEO);
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// Set GL version profile
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
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s_GLSDL_Initialized = true;
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}
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// Set depth and stencil size according to format
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uint32_t depthSize = 0;
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uint32_t stencilSize = 0;
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switch (depthFormat) {
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case GLTF_INVALID:
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break;
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case GLTF_D32:
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depthSize = 32;
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break;
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case GLTF_D24:
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depthSize = 24;
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break;
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case GLTF_D16:
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depthSize = 16;
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break;
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case GLTF_D24S8:
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depthSize = 24;
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stencilSize = 8;
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break;
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default:
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BLIZZARD_ASSERT(false);
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break;
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}
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SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, depthSize);
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SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, stencilSize);
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SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
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SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
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SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
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SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
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// Set multisampling
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if (sampleCount >= 1) {
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SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, sampleCount);
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SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
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}
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this->m_sdlWindow = SDL_CreateWindow(
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title,
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static_cast<int>(rect.size.width), static_cast<int>(rect.size.height),
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SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE
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);
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BLIZZARD_ASSERT(this->m_sdlWindow != nullptr);
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}
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void GLSDLWindow::Swap() {
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SDL_GL_SwapWindow(this->m_sdlWindow);
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}
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void GLSDLWindow::Destroy() {
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SDL_DestroyWindow(this->m_sdlWindow);
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this->m_sdlWindow = nullptr;
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}
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GLSDLWindowRect GLSDLWindow::GetRect() {
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// Default rectangle
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GLSDLWindowRect rect;
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int origin_x = 0;
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int origin_y = 0;
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if (SDL_GetWindowPosition(this->m_sdlWindow, &origin_x, &origin_y) == 0) {
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rect.origin.x = static_cast<int32_t>(origin_x);
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rect.origin.y = static_cast<int32_t>(origin_y);
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}
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int width = 0;
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int height = 0;
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if (SDL_GetWindowSize(this->m_sdlWindow, &width, &height) == 0) {
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rect.size.width = static_cast<int32_t>(width);
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rect.size.height = static_cast<int32_t>(height);
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}
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return rect;
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}
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GLSDLWindowRect GLSDLWindow::GetBackingRect() {
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// Default rectangle
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GLSDLWindowRect rect;
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// Query backing width/height
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int width = 0;
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int height = 0;
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if (SDL_GetWindowSizeInPixels(this->m_sdlWindow, &width, &height) == 0) {
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rect.size.width = static_cast<int32_t>(width);
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rect.size.height = static_cast<int32_t>(height);
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}
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return rect;
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}
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void GLSDLWindow::Resize(const GLSDLWindowRect& rect) {
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auto current = this->GetBackingRect();
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if (current.size.width != rect.size.width || current.size.height != rect.size.width) {
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auto status = SDL_SetWindowSize(this->m_sdlWindow, rect.size.width, rect.size.height);
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BLIZZARD_ASSERT(status == 0);
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}
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}
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int32_t GLSDLWindow::GetWidth() {
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return this->GetBackingRect().size.width;
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}
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int32_t GLSDLWindow::GetHeight() {
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return this->GetBackingRect().size.height;
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}
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