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sdl, complete overhaul of hardware/software scaling

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This commit is contained in:
kub 2021-09-10 18:46:05 +02:00
parent 6651998e9f
commit d5d1778252
21 changed files with 1233 additions and 547 deletions
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13
platform/pandora/plat.c
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@ -331,17 +331,16 @@ void pnd_restore_layer_data(void)
plat_video_flip();
}
void emu_video_mode_change(int start_line, int line_count, int is_32cols)
void emu_video_mode_change(int start_line, int line_count, int start_col, int col_count)
{
int fb_w = 320, fb_h = 240, fb_left = 0, fb_right = 0, fb_top = 0, fb_bottom = 0;
if (doing_bg_frame)
return;
if (is_32cols) {
fb_w = 256;
fb_left = fb_right = 32;
}
fb_w = col_count;
fb_left = start_col;
fb_right = 320 - (fb_w+fb_left);;
switch (currentConfig.scaling) {
case SCALE_1x1:
@ -349,7 +348,7 @@ void emu_video_mode_change(int start_line, int line_count, int is_32cols)
g_layer_h = fb_h;
break;
case SCALE_2x2_3x2:
g_layer_w = fb_w * (is_32cols ? 3 : 2);
g_layer_w = fb_w * (col_count < 320 ? 3 : 2);
g_layer_h = fb_h * 2;
break;
case SCALE_2x2_2x2:
@ -381,7 +380,7 @@ void emu_video_mode_change(int start_line, int line_count, int is_32cols)
fb_h = line_count;
break;
}
g_osd_fps_x = is_32cols ? 232 : 264;
g_osd_fps_x = col_count < 320 ? 232 : 264;
g_osd_y = fb_top + fb_h - 8;
pnd_setup_layer(1, g_layer_x, g_layer_y, g_layer_w, g_layer_h);