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wayland: Rename some display related variables to better reflect their purpose

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Use the 'logical' prefix for the logical width and height, and clarify that the physical dimensions reflect the width/height in millimeters.
This commit is contained in:
Frank Praznik 2024-11-18 11:33:33 -05:00
parent e027b85cc4
commit 70fe38bcb2
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2 changed files with 24 additions and 24 deletions
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43
src/video/wayland/SDL_waylandvideo.c
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@ -705,8 +705,8 @@ static void xdg_output_handle_logical_size(void *data, struct zxdg_output_v1 *xd
{
SDL_DisplayData *internal = (SDL_DisplayData *)data;
internal->screen_width = width;
internal->screen_height = height;
internal->logical_width = width;
internal->logical_height = height;
internal->has_logical_size = true;
}
@ -854,8 +854,8 @@ static void display_handle_geometry(void *data,
internal->x = x;
internal->y = y;
}
internal->physical_width = physical_width;
internal->physical_height = physical_height;
internal->physical_width_mm = physical_width;
internal->physical_height_mm = physical_height;
// The model is only used for the output name if wl_output or xdg-output haven't provided a description.
if (internal->display == 0 && !internal->placeholder.name) {
@ -867,7 +867,7 @@ static void display_handle_geometry(void *data,
case WL_OUTPUT_TRANSFORM_##in: \
internal->orientation = SDL_ORIENTATION_##out; \
break;
if (internal->physical_width >= internal->physical_height) {
if (internal->physical_width_mm >= internal->physical_height_mm) {
switch (transform) {
TF_CASE(NORMAL, LANDSCAPE)
TF_CASE(90, PORTRAIT)
@ -911,8 +911,8 @@ static void display_handle_mode(void *data,
* handle_done and xdg-output coordinates are pre-transformed.
*/
if (!internal->has_logical_size) {
internal->screen_width = width;
internal->screen_height = height;
internal->logical_width = width;
internal->logical_height = height;
}
internal->refresh = refresh;
@ -926,7 +926,6 @@ static void display_handle_done(void *data,
SDL_DisplayData *internal = (SDL_DisplayData *)data;
SDL_VideoData *video = internal->videodata;
SDL_DisplayMode native_mode, desktop_mode;
SDL_VideoDisplay *dpy;
/*
* When using xdg-output, two wl-output.done events will be emitted:
@ -943,7 +942,7 @@ static void display_handle_done(void *data,
}
// If the display was already created, reset and rebuild the mode list.
dpy = SDL_GetVideoDisplay(internal->display);
SDL_VideoDisplay *dpy = SDL_GetVideoDisplay(internal->display);
if (dpy) {
SDL_ResetFullscreenDisplayModes(dpy);
}
@ -964,29 +963,29 @@ static void display_handle_done(void *data,
native_mode.refresh_rate_denominator = 1000;
if (internal->has_logical_size) { // If xdg-output is present...
if (native_mode.w != internal->screen_width || native_mode.h != internal->screen_height) {
if (native_mode.w != internal->logical_width || native_mode.h != internal->logical_height) {
// ...and the compositor scales the logical viewport...
if (video->viewporter) {
// ...and viewports are supported, calculate the true scale of the output.
internal->scale_factor = (double)native_mode.w / (double)internal->screen_width;
internal->scale_factor = (double)native_mode.w / (double)internal->logical_width;
} else {
// ...otherwise, the 'native' pixel values are a multiple of the logical screen size.
internal->pixel_width = internal->screen_width * (int)internal->scale_factor;
internal->pixel_height = internal->screen_height * (int)internal->scale_factor;
internal->pixel_width = internal->logical_width * (int)internal->scale_factor;
internal->pixel_height = internal->logical_height * (int)internal->scale_factor;
}
} else {
/* ...and the output viewport is not scaled in the global compositing
* space, the output dimensions need to be divided by the scale factor.
*/
internal->screen_width /= (int)internal->scale_factor;
internal->screen_height /= (int)internal->scale_factor;
internal->logical_width /= (int)internal->scale_factor;
internal->logical_height /= (int)internal->scale_factor;
}
} else {
/* Calculate the points from the pixel values, if xdg-output isn't present.
* Use the native mode pixel values since they are pre-transformed.
*/
internal->screen_width = native_mode.w / (int)internal->scale_factor;
internal->screen_height = native_mode.h / (int)internal->scale_factor;
internal->logical_width = native_mode.w / (int)internal->scale_factor;
internal->logical_height = native_mode.h / (int)internal->scale_factor;
}
// The scaled desktop mode
@ -994,8 +993,8 @@ static void display_handle_done(void *data,
desktop_mode.format = SDL_PIXELFORMAT_XRGB8888;
if (!video->scale_to_display_enabled) {
desktop_mode.w = internal->screen_width;
desktop_mode.h = internal->screen_height;
desktop_mode.w = internal->logical_width;
desktop_mode.h = internal->logical_height;
desktop_mode.pixel_density = (float)internal->scale_factor;
} else {
desktop_mode.w = native_mode.w;
@ -1029,8 +1028,8 @@ static void display_handle_done(void *data,
desktop_mode.pixel_density = 1.0f;
for (i = (int)internal->scale_factor; i > 0; --i) {
desktop_mode.w = internal->screen_width * i;
desktop_mode.h = internal->screen_height * i;
desktop_mode.w = internal->logical_width * i;
desktop_mode.h = internal->logical_height * i;
SDL_AddFullscreenDisplayMode(dpy, &desktop_mode);
}
}
@ -1043,7 +1042,7 @@ static void display_handle_done(void *data,
if (internal->display == 0) {
// First time getting display info, initialize the VideoDisplay
if (internal->physical_width >= internal->physical_height) {
if (internal->physical_width_mm >= internal->physical_height_mm) {
internal->placeholder.natural_orientation = SDL_ORIENTATION_LANDSCAPE;
} else {
internal->placeholder.natural_orientation = SDL_ORIENTATION_PORTRAIT;

5
src/video/wayland/SDL_waylandvideo.h
View file

@ -105,10 +105,11 @@ struct SDL_DisplayData
char *wl_output_name;
double scale_factor;
uint32_t registry_id;
int logical_width, logical_height;
int pixel_width, pixel_height;
int x, y, screen_width, screen_height, refresh, transform;
int x, y, refresh, transform;
SDL_DisplayOrientation orientation;
int physical_width, physical_height;
int physical_width_mm, physical_height_mm;
bool has_logical_position, has_logical_size;
SDL_DisplayID display;
SDL_VideoDisplay placeholder;