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PicoDrive: Fix 32x. (The 32x video draw routines don't respect pitch so you have to set it to width in bytes)

This commit is contained in:
nattthebear 2017-07-02 17:45:10 -04:00
parent 264436e614
commit fee2f865cc
1 changed files with 8 additions and 12 deletions
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20
waterbox/picodrive/bizhawk.c
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@ -85,6 +85,7 @@ void emu_video_mode_change(int start_line, int line_count, int is_32cols)
video_start_line = start_line;
video_line_count = line_count;
video_width = is_32cols ? 256 : 320;
PicoDrawSetOutBuf(video_buffer, video_width * sizeof(uint16_t));
}
// "switch to 16bpp mode?"
@ -113,7 +114,6 @@ ECL_EXPORT int Init(void)
PicoSetInputDevice(0, PICO_INPUT_PAD_6BTN);
PicoSetInputDevice(1, PICO_INPUT_PAD_6BTN);
PicoDrawSetOutBuf(video_buffer, 512 * sizeof(uint16_t));
PsndRerate(0);
PicoDrawSetOutFormat(PDF_RGB555, 0); // TODO: what is "use_32x_line_mode"?
@ -129,19 +129,15 @@ static void Blit(void)
f->Width = video_width;
f->Height = video_line_count;
uint8_t *dst = (uint8_t *)f->VideoBuffer;
src += 512 * video_start_line;
src += video_width * video_start_line;
for (int j = 0; j < video_line_count; j++)
for (int j = 0; j < video_line_count * video_width; j++)
{
for (int i = 0; i < video_width; i++)
{
uint16_t c = src[i];
*dst++ = c << 3 & 0xf8 | c >> 2 & 7;
*dst++ = c >> 3 & 0xfa | c >> 9 & 3;
*dst++ = c >> 8 & 0xf8 | c >> 13 & 7;
*dst++ = 0xff;
}
src += 512;
uint16_t c = *src++;
*dst++ = c << 3 & 0xf8 | c >> 2 & 7;
*dst++ = c >> 3 & 0xfa | c >> 9 & 3;
*dst++ = c >> 8 & 0xf8 | c >> 13 & 7;
*dst++ = 0xff;
}
}