diff options
Diffstat (limited to 'fmdsp/fmdsp.c')
| -rw-r--r-- | fmdsp/fmdsp.c | 41 |
1 files changed, 37 insertions, 4 deletions
diff --git a/fmdsp/fmdsp.c b/fmdsp/fmdsp.c index 1da0adf..4c16f5e 100644 --- a/fmdsp/fmdsp.c +++ b/fmdsp/fmdsp.c @@ -46,10 +46,9 @@ static void vramblit_key(uint8_t *vram, int x, int y, } void fmdsp_init(struct fmdsp *fmdsp, const struct fmdsp_font *font98) { - for (int i = 0; i < FMDSP_PALETTE_COLORS; i++) { - fmdsp->palette[i*3+0] = s_palettes[0][i*3+0]; - fmdsp->palette[i*3+1] = s_palettes[0][i*3+1]; - fmdsp->palette[i*3+2] = s_palettes[0][i*3+2]; + for (int i = 0; i < FMDSP_PALETTE_COLORS*3; i++) { + fmdsp->palette[i] = 0;//s_palettes[0][i]; + fmdsp->target_palette[i] = s_palettes[0][i]; } fmdsp->font98 = font98; } @@ -181,6 +180,39 @@ void fmdsp_vram_init(struct fmdsp *fmdsp, } } +enum { + FADEDELTA = 16 +}; + +void fmdsp_palette_set(struct fmdsp *fmdsp, int p) { + if (p < 0) return; + if (p >= PALETTE_NUM) return; + for (int i = 0; i < FMDSP_PALETTE_COLORS*3; i++) { + fmdsp->target_palette[i] = s_palettes[p][i]; + } +} + +static void fmdsp_palette_fade(struct fmdsp *fmdsp) { + for (int i = 0; i < FMDSP_PALETTE_COLORS*3; i++) { + uint8_t p = fmdsp->palette[i]; + uint8_t t = fmdsp->target_palette[i]; + if (p < t) { + if ((p + FADEDELTA) < t) { + p += FADEDELTA; + } else { + p = t; + } + } else if (p > t) { + if (p > (t + FADEDELTA)) { + p -= FADEDELTA; + } else { + p = t; + } + } + fmdsp->palette[i] = p; + } +} + void fmdsp_update(struct fmdsp *fmdsp, const struct fmdriver_work *work, uint8_t *vram) { for (int t = 0; t < 10; t++) { @@ -220,6 +252,7 @@ void fmdsp_update(struct fmdsp *fmdsp, vramblit_color(vram, BAR_X+BAR_W*(track->ticks>>2), TRACK_H*t+BAR_Y, s_bar, BAR_W, BAR_H, 7); } + fmdsp_palette_fade(fmdsp); } void fmdsp_vrampalette(struct fmdsp *fmdsp, const uint8_t *vram, uint8_t *vram32, int stride) { |