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Update code style

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Limit source code to 80 chars, and declare functions return type and
modifiers on a separate line.

This allows to avoid very long lines, and all function names are
aligned.

(We do this on VLC, and I like it.)
This commit is contained in:
Romain Vimont
2019-03-02 20:09:56 +01:00
parent b2fe005498
commit aeda583a2c
45 changed files with 813 additions and 409 deletions
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112
app/src/screen.c
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@@ -12,7 +12,8 @@
#define DISPLAY_MARGINS 96
SDL_bool sdl_init_and_configure(void) {
SDL_bool
sdl_init_and_configure(void) {
if (SDL_Init(SDL_INIT_VIDEO)) {
LOGC("Could not initialize SDL: %s", SDL_GetError());
return SDL_FALSE;
@@ -39,7 +40,8 @@ SDL_bool sdl_init_and_configure(void) {
}
// get the window size in a struct size
static struct size get_native_window_size(SDL_Window *window) {
static struct size
get_native_window_size(SDL_Window *window) {
int width;
int height;
SDL_GetWindowSize(window, &width, &height);
@@ -51,7 +53,8 @@ static struct size get_native_window_size(SDL_Window *window) {
}
// get the windowed window size
static struct size get_window_size(const struct screen *screen) {
static struct size
get_window_size(const struct screen *screen) {
if (screen->fullscreen) {
return screen->windowed_window_size;
}
@@ -59,7 +62,8 @@ static struct size get_window_size(const struct screen *screen) {
}
// set the window size to be applied when fullscreen is disabled
static void set_window_size(struct screen *screen, struct size new_size) {
static void
set_window_size(struct screen *screen, struct size new_size) {
// setting the window size during fullscreen is implementation defined,
// so apply the resize only after fullscreen is disabled
if (screen->fullscreen) {
@@ -71,7 +75,8 @@ static void set_window_size(struct screen *screen, struct size new_size) {
}
// get the preferred display bounds (i.e. the screen bounds with some margins)
static SDL_bool get_preferred_display_bounds(struct size *bounds) {
static SDL_bool
get_preferred_display_bounds(struct size *bounds) {
SDL_Rect rect;
#ifdef SCRCPY_SDL_HAS_GET_DISPLAY_USABLE_BOUNDS
# define GET_DISPLAY_BOUNDS(i, r) SDL_GetDisplayUsableBounds((i), (r))
@@ -89,10 +94,12 @@ static SDL_bool get_preferred_display_bounds(struct size *bounds) {
}
// return the optimal size of the window, with the following constraints:
// - it attempts to keep at least one dimension of the current_size (i.e. it crops the black borders)
// - it attempts to keep at least one dimension of the current_size (i.e. it
// crops the black borders)
// - it keeps the aspect ratio
// - it scales down to make it fit in the display_size
static struct size get_optimal_size(struct size current_size, struct size frame_size) {
static struct size
get_optimal_size(struct size current_size, struct size frame_size) {
if (frame_size.width == 0 || frame_size.height == 0) {
// avoid division by 0
return current_size;
@@ -117,7 +124,8 @@ static struct size get_optimal_size(struct size current_size, struct size frame_
// remove black borders on top and bottom
h = frame_size.height * w / frame_size.width;
} else {
// remove black borders on left and right (or none at all if it already fits)
// remove black borders on left and right (or none at all if it already
// fits)
w = frame_size.width * h / frame_size.height;
}
@@ -127,29 +135,33 @@ static struct size get_optimal_size(struct size current_size, struct size frame_
}
// same as get_optimal_size(), but read the current size from the window
static inline struct size get_optimal_window_size(const struct screen *screen, struct size frame_size) {
static inline struct size
get_optimal_window_size(const struct screen *screen, struct size frame_size) {
struct size current_size = get_window_size(screen);
return get_optimal_size(current_size, frame_size);
}
// initially, there is no current size, so use the frame size as current size
static inline struct size get_initial_optimal_size(struct size frame_size) {
static inline struct size
get_initial_optimal_size(struct size frame_size) {
return get_optimal_size(frame_size, frame_size);
}
void screen_init(struct screen *screen) {
void
screen_init(struct screen *screen) {
*screen = (struct screen) SCREEN_INITIALIZER;
}
static inline SDL_Texture *create_texture(SDL_Renderer *renderer, struct size frame_size) {
return SDL_CreateTexture(renderer, SDL_PIXELFORMAT_YV12, SDL_TEXTUREACCESS_STREAMING,
static inline SDL_Texture *
create_texture(SDL_Renderer *renderer, struct size frame_size) {
return SDL_CreateTexture(renderer, SDL_PIXELFORMAT_YV12,
SDL_TEXTUREACCESS_STREAMING,
frame_size.width, frame_size.height);
}
SDL_bool screen_init_rendering(struct screen *screen,
const char *device_name,
struct size frame_size,
SDL_bool always_on_top) {
SDL_bool
screen_init_rendering(struct screen *screen, const char *device_name,
struct size frame_size, SDL_bool always_on_top) {
screen->frame_size = frame_size;
struct size window_size = get_initial_optimal_size(frame_size);
@@ -166,21 +178,25 @@ SDL_bool screen_init_rendering(struct screen *screen,
#endif
}
screen->window = SDL_CreateWindow(device_name, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
window_size.width, window_size.height, window_flags);
screen->window = SDL_CreateWindow(device_name, SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED,
window_size.width, window_size.height,
window_flags);
if (!screen->window) {
LOGC("Could not create window: %s", SDL_GetError());
return SDL_FALSE;
}
screen->renderer = SDL_CreateRenderer(screen->window, -1, SDL_RENDERER_ACCELERATED);
screen->renderer = SDL_CreateRenderer(screen->window, -1,
SDL_RENDERER_ACCELERATED);
if (!screen->renderer) {
LOGC("Could not create renderer: %s", SDL_GetError());
screen_destroy(screen);
return SDL_FALSE;
}
if (SDL_RenderSetLogicalSize(screen->renderer, frame_size.width, frame_size.height)) {
if (SDL_RenderSetLogicalSize(screen->renderer, frame_size.width,
frame_size.height)) {
LOGE("Could not set renderer logical size: %s", SDL_GetError());
screen_destroy(screen);
return SDL_FALSE;
@@ -195,7 +211,8 @@ SDL_bool screen_init_rendering(struct screen *screen,
SDL_SetWindowIcon(screen->window, icon);
SDL_FreeSurface(icon);
LOGI("Initial texture: %" PRIu16 "x%" PRIu16, frame_size.width, frame_size.height);
LOGI("Initial texture: %" PRIu16 "x%" PRIu16, frame_size.width,
frame_size.height);
screen->texture = create_texture(screen->renderer, frame_size);
if (!screen->texture) {
LOGC("Could not create texture: %s", SDL_GetError());
@@ -206,11 +223,13 @@ SDL_bool screen_init_rendering(struct screen *screen,
return SDL_TRUE;
}
void screen_show_window(struct screen *screen) {
void
screen_show_window(struct screen *screen) {
SDL_ShowWindow(screen->window);
}
void screen_destroy(struct screen *screen) {
void
screen_destroy(struct screen *screen) {
if (screen->texture) {
SDL_DestroyTexture(screen->texture);
}
@@ -223,9 +242,12 @@ void screen_destroy(struct screen *screen) {
}
// recreate the texture and resize the window if the frame size has changed
static SDL_bool prepare_for_frame(struct screen *screen, struct size new_frame_size) {
if (screen->frame_size.width != new_frame_size.width || screen->frame_size.height != new_frame_size.height) {
if (SDL_RenderSetLogicalSize(screen->renderer, new_frame_size.width, new_frame_size.height)) {
static SDL_bool
prepare_for_frame(struct screen *screen, struct size new_frame_size) {
if (screen->frame_size.width != new_frame_size.width
|| screen->frame_size.height != new_frame_size.height) {
if (SDL_RenderSetLogicalSize(screen->renderer, new_frame_size.width,
new_frame_size.height)) {
LOGE("Could not set renderer logical size: %s", SDL_GetError());
return SDL_FALSE;
}
@@ -235,8 +257,10 @@ static SDL_bool prepare_for_frame(struct screen *screen, struct size new_frame_s
struct size current_size = get_window_size(screen);
struct size target_size = {
(Uint32) current_size.width * new_frame_size.width / screen->frame_size.width,
(Uint32) current_size.height * new_frame_size.height / screen->frame_size.height,
(Uint32) current_size.width * new_frame_size.width
/ screen->frame_size.width,
(Uint32) current_size.height * new_frame_size.height
/ screen->frame_size.height,
};
target_size = get_optimal_size(target_size, new_frame_size);
set_window_size(screen, target_size);
@@ -256,14 +280,16 @@ static SDL_bool prepare_for_frame(struct screen *screen, struct size new_frame_s
}
// write the frame into the texture
static void update_texture(struct screen *screen, const AVFrame *frame) {
static void
update_texture(struct screen *screen, const AVFrame *frame) {
SDL_UpdateYUVTexture(screen->texture, NULL,
frame->data[0], frame->linesize[0],
frame->data[1], frame->linesize[1],
frame->data[2], frame->linesize[2]);
}
SDL_bool screen_update_frame(struct screen *screen, struct video_buffer *vb) {
SDL_bool
screen_update_frame(struct screen *screen, struct video_buffer *vb) {
mutex_lock(vb->mutex);
const AVFrame *frame = video_buffer_consume_rendered_frame(vb);
struct size new_frame_size = {frame->width, frame->height};
@@ -278,13 +304,15 @@ SDL_bool screen_update_frame(struct screen *screen, struct video_buffer *vb) {
return SDL_TRUE;
}
void screen_render(struct screen *screen) {
void
screen_render(struct screen *screen) {
SDL_RenderClear(screen->renderer);
SDL_RenderCopy(screen->renderer, screen->texture, NULL, NULL);
SDL_RenderPresent(screen->renderer);
}
void screen_switch_fullscreen(struct screen *screen) {
void
screen_switch_fullscreen(struct screen *screen) {
if (!screen->fullscreen) {
// going to fullscreen, store the current windowed window size
screen->windowed_window_size = get_native_window_size(screen->window);
@@ -298,24 +326,30 @@ void screen_switch_fullscreen(struct screen *screen) {
screen->fullscreen = !screen->fullscreen;
if (!screen->fullscreen) {
// fullscreen disabled, restore expected windowed window size
SDL_SetWindowSize(screen->window, screen->windowed_window_size.width, screen->windowed_window_size.height);
SDL_SetWindowSize(screen->window, screen->windowed_window_size.width,
screen->windowed_window_size.height);
}
LOGD("Switched to %s mode", screen->fullscreen ? "fullscreen" : "windowed");
screen_render(screen);
}
void screen_resize_to_fit(struct screen *screen) {
void
screen_resize_to_fit(struct screen *screen) {
if (!screen->fullscreen) {
struct size optimal_size = get_optimal_window_size(screen, screen->frame_size);
SDL_SetWindowSize(screen->window, optimal_size.width, optimal_size.height);
struct size optimal_size = get_optimal_window_size(screen,
screen->frame_size);
SDL_SetWindowSize(screen->window, optimal_size.width,
optimal_size.height);
LOGD("Resized to optimal size");
}
}
void screen_resize_to_pixel_perfect(struct screen *screen) {
void
screen_resize_to_pixel_perfect(struct screen *screen) {
if (!screen->fullscreen) {
SDL_SetWindowSize(screen->window, screen->frame_size.width, screen->frame_size.height);
SDL_SetWindowSize(screen->window, screen->frame_size.width,
screen->frame_size.height);
LOGD("Resized to pixel-perfect");
}
}