diff options
| author | Mike Pavone <pavone@retrodev.com> | 2012-12-09 18:40:45 -0800 |
|---|---|---|
| committer | Mike Pavone <pavone@retrodev.com> | 2012-12-09 18:40:45 -0800 |
| commit | aa00a0b53cd984d37d454fd74360216dea966d2a (patch) | |
| tree | b210c5c153a6607917c958b0bce2818b4a03d572 /vdp.c | |
| parent | 49f7af811449e4843b2dbef8d66a6963582fb566 (diff) | |
Add debug render mode and fix vertical flip bit for bg tiles
Diffstat (limited to 'vdp.c')
| -rw-r--r-- | vdp.c | 15 |
1 files changed, 13 insertions, 2 deletions
@@ -293,7 +293,7 @@ void render_map(uint16_t col, uint8_t * tmp_buf, vdp_context * context) { uint16_t address = ((col & 0x7FF) << 5); if (col & MAP_BIT_V_FLIP) { - address += 24 - 4 * context->v_offset; + address += 28 - 4 * context->v_offset; } else { address += 4 * context->v_offset; } @@ -342,32 +342,43 @@ void render_map_output(uint32_t line, int32_t col, vdp_context * context) col-=2; dst = context->framebuf + line * 320 + col * 8; sprite_buf = context->linebuf + col * 8; + uint16_t a_src; if (context->flags & FLAG_WINDOW) { plane_a = context->tmp_buf_a + SCROLL_BUFFER_DRAW; + a_src = FBUF_SRC_W; } else { plane_a = context->tmp_buf_a + SCROLL_BUFFER_DRAW - (context->hscroll_a & 0xF); + a_src = FBUF_SRC_A; } plane_b = context->tmp_buf_b + SCROLL_BUFFER_DRAW - (context->hscroll_b & 0xF); end = dst + 16; + uint16_t src; //printf("A | tmp_buf offset: %d\n", 8 - (context->hscroll_a & 0x7)); for (; dst < end; ++plane_a, ++plane_b, ++sprite_buf, ++dst) { uint8_t pixel; if (*sprite_buf & BUF_BIT_PRIORITY && *sprite_buf & 0xF) { pixel = *sprite_buf; + src = FBUF_SRC_S; } else if (*plane_a & BUF_BIT_PRIORITY && *plane_a & 0xF) { pixel = *plane_a; + src = a_src; } else if (*plane_b & BUF_BIT_PRIORITY && *plane_b & 0xF) { pixel = *plane_b; + src = FBUF_SRC_B; } else if (*sprite_buf & 0xF) { pixel = *sprite_buf; + src = FBUF_SRC_S; } else if (*plane_a & 0xF) { pixel = *plane_a; + src = a_src; } else if (*plane_b & 0xF){ pixel = *plane_b; + src = FBUF_SRC_B; } else { pixel = context->regs[REG_BG_COLOR] & 0x3F; + src = FBUF_SRC_BG; } - *dst = context->cram[pixel & 0x3F] | ((pixel & BUF_BIT_PRIORITY) ? 0x1000 : 0); + *dst = context->cram[pixel & 0x3F] | ((pixel & BUF_BIT_PRIORITY) ? FBUF_BIT_PRIORITY : 0) | src; } } else { //dst = context->framebuf + line * 320; |