diff options
| author | Vito Caputo <vcaputo@pengaru.com> | 2021-12-25 22:01:57 -0800 |
|---|---|---|
| committer | Vito Caputo <vcaputo@pengaru.com> | 2021-12-25 22:01:57 -0800 |
| commit | 189eac273ba14c8ca0d22b31182b030ccc4c7756 (patch) | |
| tree | c49ac8c15404cb68ae4ccb4cf2a2ba0f7417c705 /src/sars.h | |
| parent | 8da03aff8bca547bb83f1b049a65232f03123d5a (diff) | |
*: introduce a projection matrix and winmodesrev3
The bulk of this is mechanical wiring up of a projection_x to all
the nodes.
But this also introduces maintenance of the projection_x, with
aspect-ratio preservation in two of the modes: WINDOWED and
FULLSCREEN, with the previously default stretched-to-fill
fullscreen mode now relegated to a third FILLSCREEN winmode.
The default at startup is now an aspect ratio-preserving windowed
mode.
Simply press the 'f' key at any time to cycle through them.
This was mostly done in sars to provide a source-available test
for reproducing a fullscreen SDL2 bug I filed @
https://github.com/libsdl-org/SDL/issues/5139
Otherwise it's pretty silly to bother with doing anything on
sars... but it is a handy little mule for such things.
Diffstat (limited to 'src/sars.h')
| -rw-r--r-- | src/sars.h | 13 |
1 files changed, 11 insertions, 2 deletions
@@ -30,12 +30,21 @@ typedef enum sars_context_t { SARS_CONTEXT_CNT } sars_context_t; +typedef enum sars_winmode_t { + SARS_WINMODE_WINDOW, /* windowed in the ideal aspect ratio (may be letterboxed if resized or --window WxH) */ + SARS_WINMODE_FULLSCREEN, /* fullscreened, in the ideal aspect ratio (likely letterboxed) */ + SARS_WINMODE_FILLSCREEN, /* fullscreened, in the screen's aspect ratio (likely stretched) */ + SARS_WINMODE_CNT +} sars_winmode_t; + typedef struct sars_t { SDL_Window *window; SDL_GLContext *gl; stage_t *stage; unsigned window_width, window_height; - unsigned windowed:1; + sars_winmode_t winmode; + + m4f_t projection_x; } sars_t; void sars_canvas_size(sars_t *sars, int *res_width, int *res_height); @@ -45,8 +54,8 @@ void sars_viewport_size(sars_t *sars, int *res_width, int *res_height); void sars_viewport_to_ndc(sars_t *sars, int x, int y, float *res_x, float *res_y); void sars_viewport_from_ndc(sars_t *sars, float x, float y, int *res_x, int *res_y); uint32_t sars_viewport_id(sars_t *sars); -void sars_toggle_fullscreen(sars_t *sars); void sars_render(play_t *play, void *context); void sars_dispatch(play_t *play, void *context, SDL_Event *event); +sars_winmode_t sars_winmode_set(sars_t *sars, sars_winmode_t winmode); #endif |