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add 16:9 aspect ratio

This commit is contained in:
Anthony Pesch 2017-07-23 19:00:58 -04:00
parent edb78f7b38
commit f6c8642d21
2 changed files with 10 additions and 4 deletions
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10
src/emulator.c
View File

@ -41,11 +41,12 @@ DEFINE_PERSISTENT_OPTION_STRING(aspect_ratio, "stretch", "Video aspect ratio");
enum {
ASPECT_RATIO_STRETCH,
ASPECT_RATIO_16BY9,
ASPECT_RATIO_4BY3,
};
static const char *aspect_ratios[] = {
"stretch", "4:3",
"stretch", "16:9", "4:3",
};
/* emulation thread state */
@ -508,7 +509,7 @@ static void emu_set_aspect_ratio(struct emu *emu, const char *new_ratio) {
/* if a widescreen hack is enabled, force to stretch for the session */
if (gdrom_widescreen_enabled(emu->dc->gdrom)) {
emu->aspect_ratio = ASPECT_RATIO_STRETCH;
emu->aspect_ratio = ASPECT_RATIO_16BY9;
}
}
@ -679,6 +680,11 @@ void emu_render_frame(struct emu *emu) {
frame_width = emu->video_width;
frame_x = 0;
frame_y = 0;
} else if (emu->aspect_ratio == ASPECT_RATIO_16BY9) {
frame_width = emu->video_width;
frame_height = frame_width * (9.0f / 16.0f);
frame_x = 0;
frame_y = (emu->video_height - frame_height) / 2.0f;
} else if (emu->aspect_ratio == ASPECT_RATIO_4BY3) {
frame_height = emu->video_height;
frame_width = frame_height * (4.0f / 3.0f);

4
src/host/sdl_host.c
View File

@ -16,8 +16,8 @@ DEFINE_OPTION_INT(audio, 1, "Enable audio");
DEFINE_OPTION_INT(latency, 50, "Preferred audio latency in ms");
#define AUDIO_FREQ 44100
#define VIDEO_DEFAULT_WIDTH 960
#define VIDEO_DEFAULT_HEIGHT 540
#define VIDEO_DEFAULT_WIDTH 640
#define VIDEO_DEFAULT_HEIGHT 480
#define INPUT_MAX_CONTROLLERS 4
#define AUDIO_FRAMES_TO_MS(frames) \