refactor webgpu initialization into init_webgpu()

src/main.cpp

@@ -38,12 +38,15 @@ static WGPUTexture  framebuffer;
 static WGPURenderPipeline basic_render_pipeline;
 static WGPURenderPipeline world_render_pipeline;
 static WGPURenderPipeline grid_render_pipeline;
-static WGPUSampler pixel_sampler;
+static WGPUSampler        pixel_sampler;
 
 static WGPUBindGroup per_frame_bind_group;
 static WGPUBindGroup world_bind_group;
 static WGPUBindGroup basic_bind_group;
 
+static WGPUTexture     player_texture;
+static WGPUTextureView player_texture_view;
+
 static WGPUTexture      tile_textures_array;
 static WGPUTextureView  tile_textures_array_view;
 static WGPUTextureView *tile_textures_array_view_individual;
@@ -59,8 +62,11 @@ static WGPUBuffer grid_index_buffer;
 static WGPUBuffer player_instance_buffer;
 static WGPUBuffer tile_infos_buffer;
 
-static Sint32 window_width;
+static WGPUSurfaceConfiguration surface_configuration;
-static Sint32 window_height;
+
+static Sint32 window_width  = 1280;
+static Sint32 window_height = 720;
+
 
 static Mix_Music *music_setting_off_piano;
 
@@ -1366,55 +1372,17 @@ WGPUSurface create_wgpu_surface_for_SDL_window(SDL_Window *window) {
     return NULL;
 }
 
-void setup_working_directory() {
+bool init_webgpu() {
-    if (SDL_GetPathInfo(ASSETS_PATH, NULL)) return;
-
-    const char *current_directory = SDL_GetCurrentDirectory();
-
-    change_directory(SDL_GetBasePath());
-    if (SDL_GetPathInfo(ASSETS_PATH, NULL)) return;
-
-    change_directory("..");
-    if (SDL_GetPathInfo(ASSETS_PATH, NULL)) return;
-    
-    change_directory(current_directory);
-}
-
-int main(int argc, char **argv) {
-    setup_memory_functions();
-    setup_working_directory();
-
-    #ifdef SDL_PLATFORM_LINUX
-    if (getenv("ENABLE_VULKAN_RENDERDOC_CAPTURE"))
-        SDL_SetHint(SDL_HINT_VIDEO_DRIVER, "x11,wayland");
-    #endif
-
-    if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_EVENTS | SDL_INIT_GAMEPAD)) {
-        log_error("Failed to initialize SDL (%s). Exiting.", SDL_GetError());
-        return 1;
-    }
-
-    if (!Mix_Init(MIX_INIT_OPUS)) {
-        log_error("Failed to init SDL_mixer. Exiting.");
-        return 1;
-    }
-
     instance = wgpuCreateInstance(NULL);
     if (!instance) {
-        log_error("Failed to create webgpu instance. Exiting.");
+        log_error("Failed to create webgpu instance.");
-        return 1;
+        return false;
-    }
-
-    window = SDL_CreateWindow("Mikemon", 1280, 720, SDL_WINDOW_RESIZABLE);
-    if (!window) {
-        log_error("Failed to create window (%s). Exiting.", SDL_GetError());
-        return 1;
     }
 
     surface = create_wgpu_surface_for_SDL_window(window);
     if (!surface) {
-        log_error("Failed to create webgpu surface for SDL window. Exiting.");
+        log_error("Failed to create webgpu surface for SDL window.");
-        return 1;
+        return false;
     }
 
     WGPURequestAdapterCallbackInfo request_adapter_callback_info = {
@@ -1437,11 +1405,11 @@ int main(int argc, char **argv) {
     }
 
     if (!device) {
-        log_error("Failed to initialize webgpu. Exiting.");
+        log_error("Failed to get webgpu device.");
-        return 1;
+        return false;
     }
 
-    WGPUSurfaceConfiguration surface_configuration = {
+    surface_configuration = {
         .device          = device,
         .format          = WGPUTextureFormat_BGRA8UnormSrgb,
         .usage           = WGPUTextureUsage_RenderAttachment,
@@ -1456,26 +1424,8 @@ int main(int argc, char **argv) {
     wgpuSurfaceConfigure(surface, &surface_configuration);
 
     if (!recreate_graphics_pipelines()) {
-        log_error("Failed to create graphics pipelines. Exiting.");
+        log_error("Failed to create graphics pipelines.");
-        return 1;
+        return false;
-    }
-
-    if (!load_map("map.sv", &current_map)) {
-        log_error("Failed to load initial map. Exiting.");
-        return 1;
-    }
-
-    WGPUTexture player_texture = create_shader_texture("decorations/strawberry.png");
-    if (!player_texture) {
-        log_error("Failed to create shader texture. Exiting.");
-        return 1;
-    }
-
-    WGPUTextureView player_texture_view = wgpuTextureCreateView(player_texture, NULL);
-
-    if (!recreate_tile_textures()) {
-        log_error("Failed to create tile textures. Exiting.");
-        return 1;
     }
 
     WGPUSamplerDescriptor pixel_sampler_descriptor = {
@@ -1496,50 +1446,63 @@ int main(int argc, char **argv) {
 
     view_projection_matrix_buffer = create_buffer(WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst, sizeof(M4x4), NULL, "view_projection_matrix_buffer");
     if (!view_projection_matrix_buffer) {
-        log_error("Failed to create buffer. Exiting.");
+        log_error("Failed to create buffer.");
-        return 1;
+        return false;
     }
 
     per_frame_buffer = create_buffer(WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst, sizeof(per_frame), NULL, "per_frame_buffer");
     if (!per_frame_buffer) {
-        log_error("Failed to create buffer. Exiting.");
+        log_error("Failed to create buffer.");
-        return 1;
+        return false;
     }
 
     tint_color_buffer = create_buffer(WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst, sizeof(V3), NULL, "tint_color_buffer");
     if (!tint_color_buffer) {
-        log_error("Failed to create buffer. Exiting.");
+        log_error("Failed to create buffer.");
-        return 1;
+        return false;
     }
 
     vertex_buffer = create_buffer(WGPUBufferUsage_Vertex, sizeof(vertices), vertices, "vertex_buffer");
     if (!vertex_buffer) {
-        log_error("Failed to create buffer. Exiting.");
+        log_error("Failed to create buffer.");
-        return 1;
+        return false;
     }
 
     index_buffer = create_buffer(WGPUBufferUsage_Index, sizeof(indices), indices, "index_buffer");
     if (!index_buffer) {
-        log_error("Failed to create buffer. Exiting.");
+        log_error("Failed to create buffer.");
-        return 1;
+        return false;
     }
 
     grid_vertex_buffer = create_buffer(WGPUBufferUsage_Vertex, sizeof(grid_vertices), grid_vertices, "grid_vertex_buffer");
     if (!grid_vertex_buffer) {
-        log_error("Failed to create buffer. Exiting.");
+        log_error("Failed to create buffer.");
-        return 1;
+        return false;
     }
 
     grid_index_buffer = create_buffer(WGPUBufferUsage_Index, sizeof(grid_indices), grid_indices, "grid_index_buffer");
     if (!grid_index_buffer) {
-        log_error("Failed to create buffer. Exiting.");
+        log_error("Failed to create buffer.");
-        return 1;
+        return false;
     }
 
     player_instance_buffer = create_buffer(WGPUBufferUsage_Vertex | WGPUBufferUsage_CopyDst, sizeof(player_instance), &player_instance, "player_instance_buffer");
     if (!player_instance_buffer) {
-        log_error("Failed to create buffer. Exiting.");
+        log_error("Failed to create buffer.");
-        return 1;
+        return false;
+    }
+
+    player_texture = create_shader_texture("decorations/strawberry.png");
+    if (!player_texture) {
+        log_error("Failed to create shader texture.");
+        return false;
+    }
+
+    player_texture_view = wgpuTextureCreateView(player_texture, NULL);
+
+    if (!recreate_tile_textures()) {
+        log_error("Failed to create tile textures.");
+        return false;
     }
 
     WGPUBindGroupEntry per_frame_bind_group_entries[] = {
@@ -1583,6 +1546,58 @@ int main(int argc, char **argv) {
     };
     basic_bind_group = wgpuDeviceCreateBindGroup(device, &basic_bind_group_descriptor);
 
+    return true;
+}
+
+void setup_working_directory() {
+    if (SDL_GetPathInfo(ASSETS_PATH, NULL)) return;
+
+    const char *current_directory = SDL_GetCurrentDirectory();
+
+    change_directory(SDL_GetBasePath());
+    if (SDL_GetPathInfo(ASSETS_PATH, NULL)) return;
+
+    change_directory("..");
+    if (SDL_GetPathInfo(ASSETS_PATH, NULL)) return;
+
+    change_directory(current_directory);
+}
+
+int main(int argc, char **argv) {
+    setup_memory_functions();
+    setup_working_directory();
+
+    #ifdef SDL_PLATFORM_LINUX
+    if (getenv("ENABLE_VULKAN_RENDERDOC_CAPTURE"))
+        SDL_SetHint(SDL_HINT_VIDEO_DRIVER, "x11,wayland");
+    #endif
+
+    if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_EVENTS | SDL_INIT_GAMEPAD)) {
+        log_error("Failed to initialize SDL (%s). Exiting.", SDL_GetError());
+        return 1;
+    }
+
+    if (!Mix_Init(MIX_INIT_OPUS)) {
+        log_error("Failed to init SDL_mixer. Exiting.");
+        return 1;
+    }
+
+    window = SDL_CreateWindow("Mikemon", window_width, window_height, SDL_WINDOW_RESIZABLE);
+    if (!window) {
+        log_error("Failed to create window (%s). Exiting.", SDL_GetError());
+        return 1;
+    }
+
+    if (!init_webgpu()) {
+        log_error("Failed to initialize webgpu. Exiting.");
+        return 1;
+    }
+
+    if (!load_map("map.sv", &current_map)) {
+        log_error("Failed to load initial map. Exiting.");
+        return 1;
+    }
+
     SDL_AudioSpec audio_spec = {
         .format   = SDL_AUDIO_F32,
         .channels = 2,