From b17fd9a180e38aefa162b4385eb6b333792c75e3 Mon Sep 17 00:00:00 2001 From: "Ryan C. Gordon" Date: Mon, 10 Feb 2014 01:41:58 -0500 Subject: [PATCH] Replace testgamecontroller visualization mode with something more useful. --- test/testgamecontroller.c | 148 +++++++++++++++++++++++--------------- 1 file changed, 92 insertions(+), 56 deletions(-) diff --git a/test/testgamecontroller.c b/test/testgamecontroller.c index 440721dc84509..e7c1e0575d7c5 100644 --- a/test/testgamecontroller.c +++ b/test/testgamecontroller.c @@ -24,20 +24,10 @@ #define SCREEN_WIDTH 320 #define SCREEN_HEIGHT 480 #else -#define SCREEN_WIDTH 640 -#define SCREEN_HEIGHT 480 +#define SCREEN_WIDTH 512 +#define SCREEN_HEIGHT 317 #endif -#define MAX_NUM_AXES 6 -#define MAX_NUM_HATS 2 - -static void -DrawRect(SDL_Renderer *r, const int x, const int y, const int w, const int h) -{ - const SDL_Rect area = { x, y, w, h }; - SDL_RenderFillRect(r, &area); -} - static const char * ControllerAxisName(const SDL_GameControllerAxis axis) { @@ -83,13 +73,71 @@ ControllerButtonName(const SDL_GameControllerButton button) } } +static SDL_Texture * +LoadTexture(SDL_Renderer *renderer, char *file, SDL_bool transparent) +{ + SDL_Surface *temp = NULL; + SDL_Texture *texture = NULL; + + temp = SDL_LoadBMP(file); + if (temp == NULL) { + SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't load %s: %s", file, SDL_GetError()); + } else { + /* Set transparent pixel as the pixel at (0,0) */ + if (transparent) { + SDL_assert(!temp->format->palette); + SDL_assert(temp->format->BitsPerPixel == 24); + SDL_SetColorKey(temp, SDL_TRUE, (*(Uint32 *) temp->pixels) & 0x00FFFFFF); + } + + texture = SDL_CreateTextureFromSurface(renderer, temp); + if (!texture) { + SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create texture: %s\n", SDL_GetError()); + } + } + if (temp) { + SDL_FreeSurface(temp); + } + return texture; +} + SDL_bool WatchGameController(SDL_GameController * gamecontroller) { + /* This is indexed by SDL_GameControllerButton. */ + static const struct { int x; int y; } button_positions[] = { + {387, 167}, /* A */ + {431, 132}, /* B */ + {342, 132}, /* X */ + {389, 101}, /* Y */ + {174, 132}, /* BACK */ + {233, 132}, /* GUIDE */ + {289, 132}, /* START */ + {75, 154}, /* LEFTSTICK */ + {305, 230}, /* RIGHTSTICK */ + {77, 40}, /* LEFTSHOULDER */ + {396, 36}, /* RIGHTSHOULDER */ + {154, 188}, /* DPAD_UP */ + {154, 249}, /* DPAD_DOWN */ + {116, 217}, /* DPAD_LEFT */ + {186, 217}, /* DPAD_RIGHT */ + }; + + /* This is indexed by SDL_GameControllerAxis. */ + static const struct { int x; int y; double angle; } axis_positions[] = { + {75, 154, 0.0}, /* LEFTX */ + {75, 154, 90.0}, /* LEFTY */ + {305, 230, 0.0}, /* RIGHTX */ + {305, 230, 90.0}, /* RIGHTY */ + {91, 0, 90.0}, /* TRIGGERLEFT */ + {375, 0, 90.0}, /* TRIGGERRIGHT */ + }; + const char *name = SDL_GameControllerName(gamecontroller); const char *basetitle = "Game Controller Test: "; const size_t titlelen = SDL_strlen(basetitle) + SDL_strlen(name) + 1; char *title = (char *)SDL_malloc(titlelen); + SDL_Texture *background, *button, *axis; SDL_Window *window = NULL; SDL_Renderer *screen = NULL; SDL_bool retval = SDL_FALSE; @@ -101,7 +149,7 @@ WatchGameController(SDL_GameController * gamecontroller) SDL_snprintf(title, titlelen, "%s%s", basetitle, name); } - /* Create a window to display controller axis position */ + /* Create a window to display controller state */ window = SDL_CreateWindow(title, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, SCREEN_WIDTH, SCREEN_HEIGHT, 0); @@ -122,6 +170,21 @@ WatchGameController(SDL_GameController * gamecontroller) SDL_RenderPresent(screen); SDL_RaiseWindow(window); + background = LoadTexture(screen, "controllermap.bmp", SDL_FALSE); + button = LoadTexture(screen, "button.bmp", SDL_TRUE); + axis = LoadTexture(screen, "axis.bmp", SDL_TRUE); + + if (!background || !button || !axis) { + SDL_DestroyRenderer(screen); + SDL_DestroyWindow(window); + return SDL_FALSE; + } + SDL_SetTextureColorMod(button, 10, 255, 21); + SDL_SetTextureColorMod(axis, 10, 255, 21); + + /* !!! FIXME: */ + /*SDL_RenderSetLogicalSize(screen, background->w, background->h);*/ + /* Print info about the controller we are watching */ SDL_Log("Watching controller %s\n", name ? name : "Unknown Controller"); @@ -130,26 +193,10 @@ WatchGameController(SDL_GameController * gamecontroller) /* blank screen, set up for drawing this frame. */ SDL_SetRenderDrawColor(screen, 0x00, 0x00, 0x00, SDL_ALPHA_OPAQUE); SDL_RenderClear(screen); + SDL_RenderCopy(screen, background, NULL, NULL); while (SDL_PollEvent(&event)) { switch (event.type) { - case SDL_CONTROLLERAXISMOTION: - SDL_Log("Controller %d axis %d ('%s') value: %d\n", - event.caxis.which, - event.caxis.axis, - ControllerAxisName((SDL_GameControllerAxis)event.caxis.axis), - event.caxis.value); - break; - case SDL_CONTROLLERBUTTONDOWN: - SDL_Log("Controller %d button %d ('%s') down\n", - event.cbutton.which, event.cbutton.button, - ControllerButtonName((SDL_GameControllerButton)event.cbutton.button)); - break; - case SDL_CONTROLLERBUTTONUP: - SDL_Log("Controller %d button %d ('%s') up\n", - event.cbutton.which, event.cbutton.button, - ControllerButtonName((SDL_GameControllerButton)event.cbutton.button)); - break; case SDL_KEYDOWN: if (event.key.keysym.sym != SDLK_ESCAPE) { break; @@ -162,40 +209,29 @@ WatchGameController(SDL_GameController * gamecontroller) break; } } + /* Update visual controller state */ - SDL_SetRenderDrawColor(screen, 0x00, 0xFF, 0x00, SDL_ALPHA_OPAQUE); - for (i = 0; i (SCREEN_WIDTH - 16)) { - x = SCREEN_WIDTH - 16; + for (i = 0; i < SDL_CONTROLLER_AXIS_MAX; ++i) { + const Sint16 deadzone = 8000; /* !!! FIXME: real deadzone */ + const Sint16 value = SDL_GameControllerGetAxis(gamecontroller, (SDL_GameControllerAxis)(i)); + if (value < -deadzone) { + const SDL_Rect dst = { axis_positions[i].x, axis_positions[i].y, 50, 50 }; + const double angle = axis_positions[i].angle; + SDL_RenderCopyEx(screen, axis, NULL, &dst, angle, NULL, 0); + } else if (value > deadzone) { + const SDL_Rect dst = { axis_positions[i].x, axis_positions[i].y, 50, 50 }; + const double angle = axis_positions[i].angle + 180.0; + SDL_RenderCopyEx(screen, axis, NULL, &dst, angle, NULL, 0); } - y = (((int) SDL_GameControllerGetAxis(gamecontroller, (SDL_GameControllerAxis)(i * 2 + 1))) + 32768); - y *= SCREEN_HEIGHT; - y /= 65535; - if (y < 0) { - y = 0; - } else if (y > (SCREEN_HEIGHT - 16)) { - y = SCREEN_HEIGHT - 16; - } - - DrawRect(screen, x, y, 16, 16); } - SDL_SetRenderDrawColor(screen, 0x00, 0x00, 0xFF, SDL_ALPHA_OPAQUE); - SDL_RenderPresent(screen); if (!SDL_GameControllerGetAttached(gamecontroller)) {