mirror of
https://github.com/wolfpld/tracy.git
synced 2026-08-16 16:19:42 +00:00
switch to SDL2 (no cmake fetch, just find_package)
This commit is contained in:
Marcos Slomp
@@ -4,7 +4,7 @@
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# cmake -G Ninja -DCMAKE_BUILD_TYPE=RelWithDebInfo -B build/ninja .
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# cmake --build build/ninja
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#
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# Linux (requires libx11-dev libgl1-mesa-dev):
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# Linux (requires libsdl2-dev libgl1-mesa-dev):
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# cmake -G Ninja -DCMAKE_BUILD_TYPE=RelWithDebInfo -B build/ninja .
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# cmake --build build/ninja
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#
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@@ -22,20 +22,15 @@ set(TRACY_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../../..")
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option(TRACY_ENABLE "Enable Tracy profiling" ON)
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# ---------------------------------------------------------------------------
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# Platform — RGFW (cross-platform windowing, fetched automatically)
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# Platform — SDL2 (cross-platform windowing, must be installed on the system)
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# ---------------------------------------------------------------------------
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include(FetchContent)
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FetchContent_Declare(rgfw
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GIT_REPOSITORY https://github.com/ColleagueRiley/RGFW.git
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GIT_TAG main # pin to a specific commit for reproducible builds
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GIT_SHALLOW TRUE
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)
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FetchContent_MakeAvailable(rgfw)
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find_package(SDL2 REQUIRED)
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# ---------------------------------------------------------------------------
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# GL extension loader — GLEW (Windows + Linux, fetched automatically)
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# ---------------------------------------------------------------------------
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if(NOT APPLE)
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include(FetchContent)
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set(glew-cmake_BUILD_SHARED OFF CACHE BOOL "" FORCE)
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set(ONLY_LIBS ON CACHE BOOL "" FORCE)
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FetchContent_Declare(glew
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@@ -46,20 +41,14 @@ if(NOT APPLE)
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FetchContent_MakeAvailable(glew)
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endif()
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set(PLATFORM_SOURCES platform/platform_rgfw.cpp)
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set(PLATFORM_INCLUDES ${rgfw_SOURCE_DIR})
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set(PLATFORM_SOURCES platform/platform_sdl2.cpp)
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if(APPLE)
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set(PLATFORM_LIBS "-framework Cocoa" "-framework OpenGL"
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"-framework CoreVideo" "-framework IOKit")
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set(PLATFORM_LIBS SDL2::SDL2 "-framework OpenGL")
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elseif(WIN32)
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set(PLATFORM_LIBS opengl32 user32 gdi32 libglew_static)
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set(PLATFORM_LIBS SDL2::SDL2 opengl32 libglew_static)
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else()
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find_package(X11 REQUIRED)
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if(NOT X11_Xrandr_FOUND)
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message(FATAL_ERROR "Xrandr not found — install libxrandr-dev")
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endif()
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set(PLATFORM_LIBS X11::X11 X11::Xrandr GL libglew_static)
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set(PLATFORM_LIBS SDL2::SDL2 GL libglew_static)
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endif()
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# ---------------------------------------------------------------------------
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@@ -90,6 +79,5 @@ endif()
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target_include_directories(gl_spinning_triangle PRIVATE
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"${TRACY_DIR}/public"
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${PLATFORM_INCLUDES}
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)
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target_link_libraries(gl_spinning_triangle PRIVATE ${PLATFORM_LIBS})
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@@ -1,97 +0,0 @@
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// platform_rgfw.cpp — RGFW windowing backend (cross-platform)
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// https://github.com/ColleagueRiley/RGFW
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#include "platform.h" // GL headers first (gl3.h / glew.h) so RGFW sees guards set
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#define RGFW_OPENGL
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#define RGFW_IMPLEMENTATION
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#include <RGFW.h>
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#include <chrono>
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#include <cstdio>
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#if defined(__linux__)
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#include <X11/Xlib.h>
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static bool platformHasDisplay() {
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// RGFW workaround: RGFW indiscriminately passes XOpenDisplay(0) unchecked
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// to X11 functions like XCreateWindow(), which will lead to SIGSEGV.
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Display* display = XOpenDisplay(0);
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if (display == nullptr) {
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fprintf(stderr, "ERROR: failed to open X11 display (is $DISPLAY set?)\n");
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return false;
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}
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XCloseDisplay(display);
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return true;
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}
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#else
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static bool platformHasDisplay() {
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return true;
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}
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#endif
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static RGFW_window* sWin = nullptr;
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static std::chrono::steady_clock::time_point sStartTime;
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bool platformInit(int width, int height, const char* title) {
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if (!platformHasDisplay()) {
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fprintf(stderr, "ERROR: no display found\n");
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return false;
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}
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RGFW_glHints* hints = RGFW_getGlobalHints_OpenGL();
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hints->major = 3;
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hints->minor = 3;
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RGFW_setGlobalHints_OpenGL(hints);
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sWin = RGFW_createWindow(title, 0, 0, width, height,
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RGFW_windowCenter | RGFW_windowOpenGL);
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if (!sWin) {
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fprintf(stderr, "ERROR: failed to create window\n");
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return false;
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}
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RGFW_window_makeCurrentContext_OpenGL(sWin);
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RGFW_window_swapInterval_OpenGL(sWin, 1);
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RGFW_window_setExitKey(sWin, RGFW_keyEscape);
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sStartTime = std::chrono::steady_clock::now();
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return true;
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}
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bool platformInitGL() {
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#ifndef __APPLE__
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glewExperimental = GL_TRUE;
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if (glewInit() != GLEW_OK) {
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fprintf(stderr, "Failed to initialize GLEW\n");
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return false;
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}
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#endif
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return true;
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}
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double platformGetTime() {
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return std::chrono::duration<double>(
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std::chrono::steady_clock::now() - sStartTime).count();
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}
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void platformSwapBuffers() { RGFW_window_swapBuffers_OpenGL(sWin); }
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void platformGetPixelDensityScale(float* x, float* y) {
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i32 pw, ph;
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RGFW_window_getSizeInPixels(sWin, &pw, &ph);
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*x = (float)pw / (float)sWin->w;
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*y = (float)ph / (float)sWin->h;
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}
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void platformRunLoop(void (*render)(), void (*shutdown)()) {
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while (RGFW_window_shouldClose(sWin) == RGFW_FALSE) {
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RGFW_event event;
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while (RGFW_window_checkEvent(sWin, &event)) {
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if (event.type == RGFW_windowClose) goto done;
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}
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render();
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}
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done:
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shutdown();
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RGFW_window_close(sWin);
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sWin = nullptr;
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}
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89
examples/opengl/triangle/platform/platform_sdl2.cpp
Normal file
89
examples/opengl/triangle/platform/platform_sdl2.cpp
Normal file
@@ -0,0 +1,89 @@
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// platform_sdl2.cpp — SDL2 windowing backend (cross-platform)
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#include "platform.h" // GL headers first (gl3.h / glew.h) so SDL sees guards set
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#define SDL_MAIN_HANDLED // we don't want SDL_main
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#include <SDL.h>
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#include <chrono>
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#include <cstdio>
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static SDL_Window* sWin = nullptr;
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static SDL_GLContext sCtx = nullptr;
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static std::chrono::steady_clock::time_point sStartTime;
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bool platformInit(int width, int height, const char* title) {
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SDL_SetMainReady();
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if (SDL_Init(SDL_INIT_VIDEO) != 0) {
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fprintf(stderr, "ERROR: SDL_Init failed: %s\n", SDL_GetError());
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return false;
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}
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
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sWin = SDL_CreateWindow(title,
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SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
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width, height,
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SDL_WINDOW_OPENGL | SDL_WINDOW_ALLOW_HIGHDPI);
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if (!sWin) {
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fprintf(stderr, "ERROR: SDL_CreateWindow failed: %s\n", SDL_GetError());
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SDL_Quit();
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return false;
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}
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sCtx = SDL_GL_CreateContext(sWin);
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if (!sCtx) {
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fprintf(stderr, "ERROR: SDL_GL_CreateContext failed: %s\n", SDL_GetError());
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SDL_DestroyWindow(sWin);
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SDL_Quit();
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return false;
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}
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SDL_GL_SetSwapInterval(1);
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sStartTime = std::chrono::steady_clock::now();
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return true;
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}
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bool platformInitGL() {
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#ifndef __APPLE__
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glewExperimental = GL_TRUE;
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if (glewInit() != GLEW_OK) {
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fprintf(stderr, "Failed to initialize GLEW\n");
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return false;
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}
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#endif
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return true;
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}
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double platformGetTime() {
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return std::chrono::duration<double>(
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std::chrono::steady_clock::now() - sStartTime).count();
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}
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void platformSwapBuffers() { SDL_GL_SwapWindow(sWin); }
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void platformGetPixelDensityScale(float* x, float* y) {
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int pw, ph, ww, wh;
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SDL_GL_GetDrawableSize(sWin, &pw, &ph);
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SDL_GetWindowSize(sWin, &ww, &wh);
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*x = (ww > 0) ? (float)pw / (float)ww : 1.0f;
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*y = (wh > 0) ? (float)ph / (float)wh : 1.0f;
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}
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void platformRunLoop(void (*render)(), void (*shutdown)()) {
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bool running = true;
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while (running) {
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SDL_Event e;
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while (SDL_PollEvent(&e)) {
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if (e.type == SDL_QUIT) running = false;
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if (e.type == SDL_KEYDOWN && e.key.keysym.sym == SDLK_ESCAPE) running = false;
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}
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if (running) render();
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}
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shutdown();
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SDL_GL_DeleteContext(sCtx);
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SDL_DestroyWindow(sWin);
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SDL_Quit();
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}
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