diff options
| -rw-r--r-- | vdp.c | 441 | ||||
| -rw-r--r-- | vdp.h | 3 |
2 files changed, 226 insertions, 218 deletions
@@ -1328,16 +1328,14 @@ static sh_pixel composite_highlight(vdp_context *context, uint8_t *debug_dst, ui return (sh_pixel){.index = pixel, .intensity = intensity}; } -static void render_normal(vdp_context *context, int32_t col, uint32_t *dst, uint8_t *debug_dst, int plane_a_off, int plane_b_off) +static void render_normal(vdp_context *context, int32_t col, uint8_t *dst, uint8_t *debug_dst, int plane_a_off, int plane_b_off) { int start = 0; if (!col && (context->regs[REG_MODE_1] & BIT_COL0_MASK)) { - uint32_t bgcolor = context->colors[context->regs[REG_BG_COLOR] & 0x3F]; - for (int i = 0; i < 8; ++i) - { - *(dst++) = bgcolor; - *(debug_dst++) = DBG_SRC_BG; - } + memset(dst, 0, 8); + memset(debug_dst, DBG_SRC_BG, 8); + dst += 8; + debug_dst += 8; start = 8; } uint8_t *sprite_buf = context->linebuf + col * 8 + start; @@ -1347,22 +1345,19 @@ static void render_normal(vdp_context *context, int32_t col, uint32_t *dst, uint plane_a = context->tmp_buf_a[plane_a_off & SCROLL_BUFFER_MASK]; plane_b = context->tmp_buf_b[plane_b_off & SCROLL_BUFFER_MASK]; sprite = *sprite_buf; - uint8_t pixel = composite_normal(context, debug_dst, sprite, plane_a, plane_b, context->regs[REG_BG_COLOR]); + *(dst++) = composite_normal(context, debug_dst, sprite, plane_a, plane_b, context->regs[REG_BG_COLOR]) & 0x3F; debug_dst++; - *(dst++) = context->colors[pixel & 0x3F]; } } -static void render_highlight(vdp_context *context, int32_t col, uint32_t *dst, uint8_t *debug_dst, int plane_a_off, int plane_b_off) +static void render_highlight(vdp_context *context, int32_t col, uint8_t *dst, uint8_t *debug_dst, int plane_a_off, int plane_b_off) { int start = 0; if (!col && (context->regs[REG_MODE_1] & BIT_COL0_MASK)) { - uint32_t bgcolor = context->colors[SHADOW_OFFSET + (context->regs[REG_BG_COLOR] & 0x3F)]; - for (int i = 0; i < 8; ++i) - { - *(dst++) = bgcolor; - *(debug_dst++) = DBG_SRC_BG | DBG_SHADOW; - } + memset(dst, SHADOW_OFFSET + (context->regs[REG_BG_COLOR] & 0x3F), 8); + memset(debug_dst, DBG_SRC_BG | DBG_SHADOW, 8); + dst += 8; + debug_dst += 8; start = 8; } uint8_t *sprite_buf = context->linebuf + col * 8 + start; @@ -1373,20 +1368,20 @@ static void render_highlight(vdp_context *context, int32_t col, uint32_t *dst, u plane_b = context->tmp_buf_b[plane_b_off & SCROLL_BUFFER_MASK]; sprite = *sprite_buf; sh_pixel pixel = composite_highlight(context, debug_dst, sprite, plane_a, plane_b, context->regs[REG_BG_COLOR]); - uint32_t *colors; + uint8_t final_pixel; if (pixel.intensity == BUF_BIT_PRIORITY << 1) { - colors = context->colors + HIGHLIGHT_OFFSET; + final_pixel = (pixel.index & 0x3F) + HIGHLIGHT_OFFSET; } else if (pixel.intensity) { - colors = context->colors; + final_pixel = pixel.index & 0x3F; } else { - colors = context->colors + SHADOW_OFFSET; + final_pixel = (pixel.index & 0x3F) + SHADOW_OFFSET; } debug_dst++; - *(dst++) = colors[pixel.index & 0x3F]; + *(dst++) = final_pixel; } } -static void render_testreg(vdp_context *context, int32_t col, uint32_t *dst, uint8_t *debug_dst, int plane_a_off, int plane_b_off, uint8_t output_disabled, uint8_t test_layer) +static void render_testreg(vdp_context *context, int32_t col, uint8_t *dst, uint8_t *debug_dst, int plane_a_off, int plane_b_off, uint8_t output_disabled, uint8_t test_layer) { if (output_disabled) { switch (test_layer) @@ -1402,7 +1397,7 @@ static void render_testreg(vdp_context *context, int32_t col, uint32_t *dst, uin uint8_t *sprite_buf = context->linebuf + col * 8; for (int i = 0; i < 16; i++) { - *(dst++) = context->colors[*(sprite_buf++) & 0x3F]; + *(dst++) = *(sprite_buf++) & 0x3F; *(debug_dst++) = DBG_SRC_S; } break; @@ -1410,14 +1405,14 @@ static void render_testreg(vdp_context *context, int32_t col, uint32_t *dst, uin case 2: for (int i = 0; i < 16; i++) { - *(dst++) = context->colors[context->tmp_buf_a[(plane_a_off++) & SCROLL_BUFFER_MASK] & 0x3F]; + *(dst++) = context->tmp_buf_a[(plane_a_off++) & SCROLL_BUFFER_MASK] & 0x3F; *(debug_dst++) = DBG_SRC_A; } break; case 3: for (int i = 0; i < 16; i++) { - *(dst++) = context->colors[context->tmp_buf_b[(plane_b_off++) & SCROLL_BUFFER_MASK] & 0x3F]; + *(dst++) = context->tmp_buf_b[(plane_b_off++) & SCROLL_BUFFER_MASK] & 0x3F; *(debug_dst++) = DBG_SRC_B; } break; @@ -1427,7 +1422,7 @@ static void render_testreg(vdp_context *context, int32_t col, uint32_t *dst, uin uint8_t *sprite_buf = context->linebuf + col * 8; if (!col && (context->regs[REG_MODE_1] & BIT_COL0_MASK)) { //TODO: Confirm how test register interacts with column 0 blanking - uint8_t pixel = context->regs[REG_BG_COLOR] & 0x3F; + uint8_t pixel = 0x3F; uint8_t src = DBG_SRC_BG; for (int i = 0; i < 8; ++i) { @@ -1453,7 +1448,7 @@ static void render_testreg(vdp_context *context, int32_t col, uint32_t *dst, uin break; } - *(dst++) = context->colors[pixel & 0x3F]; + *(dst++) = pixel; *(debug_dst++) = src; } plane_a_off += 8; @@ -1467,7 +1462,7 @@ static void render_testreg(vdp_context *context, int32_t col, uint32_t *dst, uin plane_a = context->tmp_buf_a[plane_a_off & SCROLL_BUFFER_MASK]; plane_b = context->tmp_buf_b[plane_b_off & SCROLL_BUFFER_MASK]; sprite = *sprite_buf; - uint8_t pixel = composite_normal(context, debug_dst, sprite, plane_a, plane_b, 0x3F); + uint8_t pixel = composite_normal(context, debug_dst, sprite, plane_a, plane_b, 0x3F) & 0x3F; switch (test_layer) { case 1: @@ -1490,18 +1485,18 @@ static void render_testreg(vdp_context *context, int32_t col, uint32_t *dst, uin break; } debug_dst++; - *(dst++) = context->colors[pixel & 0x3F]; + *(dst++) = pixel; } } } -static void render_testreg_highlight(vdp_context *context, int32_t col, uint32_t *dst, uint8_t *debug_dst, int plane_a_off, int plane_b_off, uint8_t output_disabled, uint8_t test_layer) +static void render_testreg_highlight(vdp_context *context, int32_t col, uint8_t *dst, uint8_t *debug_dst, int plane_a_off, int plane_b_off, uint8_t output_disabled, uint8_t test_layer) { int start = 0; uint8_t *sprite_buf = context->linebuf + col * 8; if (!col && (context->regs[REG_MODE_1] & BIT_COL0_MASK)) { //TODO: Confirm how test register interacts with column 0 blanking - uint8_t pixel = context->regs[REG_BG_COLOR] & 0x3F; + uint8_t pixel = 0x3F; uint8_t src = DBG_SRC_BG | DBG_SHADOW; for (int i = 0; i < 8; ++i) { @@ -1527,7 +1522,7 @@ static void render_testreg_highlight(vdp_context *context, int32_t col, uint32_t break; } - *(dst++) = context->colors[SHADOW_OFFSET + (pixel & 0x3F)]; + *(dst++) = SHADOW_OFFSET + pixel; *(debug_dst++) = src; } plane_a_off += 8; @@ -1542,16 +1537,10 @@ static void render_testreg_highlight(vdp_context *context, int32_t col, uint32_t plane_b = context->tmp_buf_b[plane_b_off & SCROLL_BUFFER_MASK]; sprite = *sprite_buf; sh_pixel pixel = composite_highlight(context, debug_dst, sprite, plane_a, plane_b, 0x3F); - uint32_t *colors; - if (pixel.intensity == BUF_BIT_PRIORITY << 1) { - colors = context->colors + HIGHLIGHT_OFFSET; - } else if (pixel.intensity) { - colors = context->colors; - } else { - colors = context->colors + SHADOW_OFFSET; - } if (output_disabled) { pixel.index = 0x3F; + } else { + pixel.index &= 0x3F; } switch (test_layer) { @@ -1574,37 +1563,35 @@ static void render_testreg_highlight(vdp_context *context, int32_t col, uint32_t } break; } + if (pixel.intensity == BUF_BIT_PRIORITY << 1) { + pixel.index += HIGHLIGHT_OFFSET; + } else if (!pixel.intensity) { + pixel.index += SHADOW_OFFSET; + } debug_dst++; - *(dst++) = colors[pixel.index & 0x3F]; + *(dst++) = pixel.index; } } static void render_map_output(uint32_t line, int32_t col, vdp_context * context) { - uint32_t *dst; + uint8_t *dst; uint8_t *debug_dst; uint8_t output_disabled = (context->test_port & TEST_BIT_DISABLE) != 0; uint8_t test_layer = context->test_port >> 7 & 3; if (context->state == PREPARING && !test_layer) { if (col) { col -= 2; - dst = context->output + BORDER_LEFT + col * 8; + dst = context->compositebuf + BORDER_LEFT + col * 8; } else { - dst = context->output; + dst = context->compositebuf; uint32_t bg_color = context->colors[context->regs[REG_BG_COLOR] & 0x3F]; - for (int i = 0; i < BORDER_LEFT; i++, dst++) - { - *dst = bg_color; - } - context->done_output = dst; + memset(dst, 0, BORDER_LEFT); + context->done_composite = dst + BORDER_LEFT; return; } - uint32_t color = context->colors[context->regs[REG_BG_COLOR] & 0x3F]; - for (int i = 0; i < 16; i++) - { - *(dst++) = color; - } - context->done_output = dst; + memset(dst, 0, 16); + context->done_composite = dst + 16; return; } line &= 0xFF; @@ -1615,7 +1602,7 @@ static void render_map_output(uint32_t line, int32_t col, vdp_context * context) if (col) { col-=2; - dst = context->output + BORDER_LEFT + col * 8; + dst = context->compositebuf + BORDER_LEFT + col * 8; debug_dst = context->layer_debug_buf + BORDER_LEFT + col * 8; @@ -1645,24 +1632,18 @@ static void render_map_output(uint32_t line, int32_t col, vdp_context * context) } dst += 16; } else { - dst = context->output; + dst = context->compositebuf; debug_dst = context->layer_debug_buf; - uint8_t pixel = context->regs[REG_BG_COLOR] & 0x3F; + uint8_t pixel = 0; if (output_disabled) { pixel = 0x3F; } - uint32_t bg_color = context->colors[pixel]; if (test_layer) { switch(test_layer) { case 1: - bg_color = context->colors[0]; - for (int i = 0; i < BORDER_LEFT; i++, dst++, debug_dst++) - { - *dst = bg_color; - *debug_dst = DBG_SRC_BG; - - } + memset(dst, 0, BORDER_LEFT); + memset(debug_dst, DBG_SRC_BG, BORDER_LEFT); break; case 2: { //plane A @@ -1673,7 +1654,7 @@ static void render_map_output(uint32_t line, int32_t col, vdp_context * context) //uint8_t *src = context->tmp_buf_a + ((context->buf_a_off + (i ? 0 : (16 - BORDER_LEFT) - (context->hscroll_a & 0xF))) & SCROLL_BUFFER_MASK); for (; i < BORDER_LEFT; buf_off++, i++, dst++, debug_dst++) { - *dst = context->colors[context->tmp_buf_a[buf_off & SCROLL_BUFFER_MASK]]; + *dst = context->tmp_buf_a[buf_off & SCROLL_BUFFER_MASK]; *debug_dst = DBG_SRC_A; } break; @@ -1686,21 +1667,19 @@ static void render_map_output(uint32_t line, int32_t col, vdp_context * context) //uint8_t *src = context->tmp_buf_b + ((context->buf_b_off + (i ? 0 : (16 - BORDER_LEFT) - (context->hscroll_b & 0xF))) & SCROLL_BUFFER_MASK); for (; i < BORDER_LEFT; buf_off++, i++, dst++, debug_dst++) { - *dst = context->colors[context->tmp_buf_b[buf_off & SCROLL_BUFFER_MASK]]; + *dst = context->tmp_buf_b[buf_off & SCROLL_BUFFER_MASK]; *debug_dst = DBG_SRC_B; } break; } } } else { - for (int i = 0; i < BORDER_LEFT; i++, dst++, debug_dst++) - { - *dst = bg_color; - *debug_dst = DBG_SRC_BG; - } + memset(dst, pixel, BORDER_LEFT); + memset(debug_dst, DBG_SRC_BG, BORDER_LEFT); } + dst += BORDER_LEFT; } - context->done_output = dst; + context->done_composite = dst; context->buf_a_off = (context->buf_a_off + SCROLL_BUFFER_DRAW) & SCROLL_BUFFER_MASK; context->buf_b_off = (context->buf_b_off + SCROLL_BUFFER_DRAW) & SCROLL_BUFFER_MASK; } @@ -1745,15 +1724,12 @@ static void render_map_mode4(uint32_t line, int32_t col, vdp_context * context) } context->buf_a_off = (context->buf_a_off + 8) & 15; - uint8_t bgcolor = 0x10 | (context->regs[REG_BG_COLOR] & 0xF) + MODE4_OFFSET; - uint32_t *dst = context->output + col * 8 + BORDER_LEFT; + uint8_t *dst = context->compositebuf + col * 8 + BORDER_LEFT; uint8_t *debug_dst = context->layer_debug_buf + col * 8 + BORDER_LEFT; if (context->state == PREPARING) { - for (int i = 0; i < 16; i++) - { - *(dst++) = context->colors[bgcolor]; - } - context->done_output = dst; + memset(dst, 0, 8); + memset(debug_dst, DBG_SRC_BG, 8); + context->done_composite = dst + 8; return; } @@ -1767,22 +1743,21 @@ static void render_map_mode4(uint32_t line, int32_t col, vdp_context * context) uint8_t *bg_src = context->tmp_buf_a + ((8 + i + col * 8 - (context->hscroll_a & 0x7)) & 15); if ((*bg_src & 0x4F) > 0x40 || !*sprite_src) { //background plane has priority and is opaque or sprite layer is transparent - *(dst++) = context->colors[(*bg_src & 0x1F) + MODE4_OFFSET]; - *(debug_dst++) = DBG_SRC_A; + uint8_t pixel = *bg_src & 0x1F; + *(dst++) = pixel + MODE4_OFFSET; + *(debug_dst++) = pixel ? DBG_SRC_A : DBG_SRC_BG; } else { //sprite layer is opaque and not covered by high priority BG pixels - *(dst++) = context->colors[*sprite_src | 0x10 + MODE4_OFFSET]; + *(dst++) = (*sprite_src | 0x10) + MODE4_OFFSET; *(debug_dst++) = DBG_SRC_S; } } + context->done_composite = dst; } else { - for (int i = 0; i < 8; i++) - { - *(dst++) = context->colors[bgcolor]; - *(debug_dst++) = DBG_SRC_BG; - } + memset(dst, 0, 8); + memset(dst, DBG_SRC_BG, 8); + context->done_composite = dst + 8; } - context->done_output = dst; } static uint32_t const h40_hsync_cycles[] = {19, 20, 20, 20, 18, 20, 20, 20, 18, 20, 20, 20, 18, 20, 20, 20, 19}; @@ -2103,7 +2078,6 @@ static void advance_output_line(vdp_context *context) output_line = INVALID_LINE; } context->output = (uint32_t *)(((char *)context->fb) + context->output_pitch * output_line); - context->done_output = context->output; #ifdef DEBUG_FB_FILL for (int i = 0; i < LINEBUF_SIZE; i++) { @@ -2148,22 +2122,18 @@ static void render_border_garbage(vdp_context *context, uint32_t address, uint8_ static void draw_right_border(vdp_context *context) { - uint32_t *dst = context->output + BORDER_LEFT + ((context->regs[REG_MODE_4] & BIT_H40) ? 320 : 256); + uint8_t *dst = context->compositebuf + BORDER_LEFT + ((context->regs[REG_MODE_4] & BIT_H40) ? 320 : 256); uint8_t pixel = context->regs[REG_BG_COLOR] & 0x3F; if ((context->test_port & TEST_BIT_DISABLE) != 0) { pixel = 0x3F; } - uint32_t bg_color = context->colors[pixel]; uint8_t test_layer = context->test_port >> 7 & 3; if (test_layer) { switch(test_layer) { case 1: - bg_color = context->colors[0]; - for (int i = 0; i < BORDER_RIGHT; i++, dst++) - { - *dst = bg_color; - } + memset(dst, 0, BORDER_RIGHT); + dst += BORDER_RIGHT; break; case 2: { //plane A @@ -2174,7 +2144,7 @@ static void draw_right_border(vdp_context *context) //uint8_t *src = context->tmp_buf_a + ((context->buf_a_off + (i ? 0 : (16 - BORDER_LEFT) - (context->hscroll_a & 0xF))) & SCROLL_BUFFER_MASK); for (; i < BORDER_RIGHT; buf_off++, i++, dst++) { - *dst = context->colors[context->tmp_buf_a[buf_off & SCROLL_BUFFER_MASK] & 0x3F]; + *dst = context->tmp_buf_a[buf_off & SCROLL_BUFFER_MASK] & 0x3F; } break; } @@ -2186,84 +2156,148 @@ static void draw_right_border(vdp_context *context) //uint8_t *src = context->tmp_buf_b + ((context->buf_b_off + (i ? 0 : (16 - BORDER_LEFT) - (context->hscroll_b & 0xF))) & SCROLL_BUFFER_MASK); for (; i < BORDER_RIGHT; buf_off++, i++, dst++) { - *dst = context->colors[context->tmp_buf_b[buf_off & SCROLL_BUFFER_MASK] & 0x3F]; + *dst = context->tmp_buf_b[buf_off & SCROLL_BUFFER_MASK] & 0x3F; } break; } } } else { - for (int i = 0; i < BORDER_RIGHT; i++, dst++) - { - *dst = bg_color; - } + memset(dst, 0, BORDER_RIGHT); + dst += BORDER_RIGHT; } - context->done_output = dst; + context->done_composite = dst; context->buf_a_off = (context->buf_a_off + SCROLL_BUFFER_DRAW) & SCROLL_BUFFER_MASK; context->buf_b_off = (context->buf_b_off + SCROLL_BUFFER_DRAW) & SCROLL_BUFFER_MASK; } #define CHECK_ONLY if (context->cycles >= target_cycles) { return; } #define CHECK_LIMIT if (context->flags & FLAG_DMA_RUN) { run_dma_src(context, -1); } context->hslot++; context->cycles += slot_cycles; CHECK_ONLY +#define OUTPUT_PIXEL(slot) if ((slot) >= BG_START_SLOT) {\ + uint8_t *src = context->compositebuf + ((slot) - BG_START_SLOT) *2;\ + uint32_t *dst = context->output + ((slot) - BG_START_SLOT) *2;\ + if ((*src & 0x3F) | test_layer) {\ + *(dst++) = context->colors[*(src++)];\ + } else {\ + *(dst++) = context->colors[(*(src++) & 0xC0) | bgindex];\ + }\ + if ((*src & 0x3F) | test_layer) {\ + *(dst++) = context->colors[*(src++)];\ + } else {\ + *(dst++) = context->colors[(*(src++) & 0xC0) | bgindex];\ + }\ + } + +#define OUTPUT_PIXEL_H40(slot) if (slot <= (BG_START_SLOT + LINEBUF_SIZE/2)) {\ + uint8_t *src = context->compositebuf + (slot - BG_START_SLOT) *2;\ + uint32_t *dst = context->output + (slot - BG_START_SLOT) *2;\ + if ((*src & 0x3F) | test_layer) {\ + *(dst++) = context->colors[*(src++)];\ + } else {\ + *(dst++) = context->colors[(*(src++) & 0xC0) | bgindex];\ + }\ + if (slot != (BG_START_SLOT + LINEBUF_SIZE/2)) {\ + if ((*src & 0x3F) | test_layer) {\ + *(dst++) = context->colors[*(src++)];\ + } else {\ + *(dst++) = context->colors[(*(src++) & 0xC0) | bgindex];\ + }\ + }\ + } + +#define OUTPUT_PIXEL_H32(slot) if (slot <= (BG_START_SLOT + (256+HORIZ_BORDER)/2)) {\ + uint8_t *src = context->compositebuf + (slot - BG_START_SLOT) *2;\ + uint32_t *dst = context->output + (slot - BG_START_SLOT) *2;\ + if ((*src & 0x3F) | test_layer) {\ + *(dst++) = context->colors[*(src++)];\ + } else {\ + *(dst++) = context->colors[(*(src++) & 0xC0) | bgindex];\ + }\ + if (slot != (BG_START_SLOT + (256+HORIZ_BORDER)/2)) {\ + if ((*src & 0x3F) | test_layer) {\ + *(dst++) = context->colors[*(src++)];\ + } else {\ + *(dst++) = context->colors[(*(src++) & 0xC0) | bgindex];\ + }\ + }\ + } #define COLUMN_RENDER_BLOCK(column, startcyc) \ case startcyc:\ + OUTPUT_PIXEL(startcyc)\ read_map_scroll_a(column, context->vcounter, context);\ CHECK_LIMIT\ case ((startcyc+1)&0xFF):\ + OUTPUT_PIXEL((startcyc+1)&0xFF)\ external_slot(context);\ CHECK_LIMIT\ case ((startcyc+2)&0xFF):\ + OUTPUT_PIXEL((startcyc+2)&0xFF)\ render_map_1(context);\ CHECK_LIMIT\ case ((startcyc+3)&0xFF):\ + OUTPUT_PIXEL((startcyc+3)&0xFF)\ render_map_2(context);\ CHECK_LIMIT\ case ((startcyc+4)&0xFF):\ + OUTPUT_PIXEL((startcyc+4)&0xFF)\ read_map_scroll_b(column, context->vcounter, context);\ CHECK_LIMIT\ case ((startcyc+5)&0xFF):\ + OUTPUT_PIXEL((startcyc+5)&0xFF)\ read_sprite_x(context->vcounter, context);\ CHECK_LIMIT\ case ((startcyc+6)&0xFF):\ + OUTPUT_PIXEL((startcyc+6)&0xFF)\ render_map_3(context);\ CHECK_LIMIT\ case ((startcyc+7)&0xFF):\ + OUTPUT_PIXEL((startcyc+7)&0xFF)\ render_map_output(context->vcounter, column, context);\ CHECK_LIMIT #define COLUMN_RENDER_BLOCK_REFRESH(column, startcyc) \ case startcyc:\ + OUTPUT_PIXEL(startcyc)\ read_map_scroll_a(column, context->vcounter, context);\ CHECK_LIMIT\ case (startcyc+1):\ - /* refresh, no don't run dma src */\ + /* refresh, so don't run dma src */\ + OUTPUT_PIXEL((startcyc+1)&0xFF)\ context->hslot++;\ context->cycles += slot_cycles;\ CHECK_ONLY\ case (startcyc+2):\ + OUTPUT_PIXEL((startcyc+2)&0xFF)\ render_map_1(context);\ CHECK_LIMIT\ case (startcyc+3):\ + OUTPUT_PIXEL((startcyc+3)&0xFF)\ render_map_2(context);\ CHECK_LIMIT\ case (startcyc+4):\ + OUTPUT_PIXEL((startcyc+4)&0xFF)\ read_map_scroll_b(column, context->vcounter, context);\ CHECK_LIMIT\ case (startcyc+5):\ + OUTPUT_PIXEL((startcyc+5)&0xFF)\ read_sprite_x(context->vcounter, context);\ CHECK_LIMIT\ case (startcyc+6):\ + OUTPUT_PIXEL((startcyc+6)&0xFF)\ render_map_3(context);\ CHECK_LIMIT\ case (startcyc+7):\ + OUTPUT_PIXEL((startcyc+7)&0xFF)\ render_map_output(context->vcounter, column, context);\ CHECK_LIMIT #define COLUMN_RENDER_BLOCK_MODE4(column, startcyc) \ case startcyc:\ + OUTPUT_PIXEL(startcyc)\ read_map_mode4(column, context->vcounter, context);\ CHECK_LIMIT\ case ((startcyc+1)&0xFF):\ + OUTPUT_PIXEL((startcyc+1)&0xFF)\ if (column & 3) {\ scan_sprite_table_mode4(context);\ } else {\ @@ -2271,9 +2305,11 @@ static void draw_right_border(vdp_context *context) }\ CHECK_LIMIT\ case ((startcyc+2)&0xFF):\ + OUTPUT_PIXEL((startcyc+2)&0xFF)\ fetch_map_mode4(column, context->vcounter, context);\ CHECK_LIMIT\ case ((startcyc+3)&0xFF):\ + OUTPUT_PIXEL((startcyc+3)&0xFF)\ render_map_mode4(context->vcounter, column, context);\ CHECK_LIMIT @@ -2293,6 +2329,7 @@ static void draw_right_border(vdp_context *context) #define SPRITE_RENDER_H40(slot) \ case slot:\ + OUTPUT_PIXEL_H40(slot)\ if ((slot) == BG_START_SLOT + LINEBUF_SIZE/2) {\ advance_output_line(context);\ }\ @@ -2327,6 +2364,7 @@ static void draw_right_border(vdp_context *context) //as we're bumping up against the hcounter jump #define SPRITE_RENDER_H32(slot) \ case slot:\ + OUTPUT_PIXEL_H32(slot)\ if ((slot) == BG_START_SLOT + (256+HORIZ_BORDER)/2) {\ advance_output_line(context);\ }\ @@ -2379,30 +2417,27 @@ static void draw_right_border(vdp_context *context) #define SPRITE_RENDER_H32_MODE4(slot) \ case slot:\ + OUTPUT_PIXEL_H32(slot)\ read_sprite_x_mode4(context);\ MODE4_CHECK_SLOT_LINE(slot)\ case CALC_SLOT(slot, 1):\ + OUTPUT_PIXEL(CALC_SLOT(slot, 1))\ read_sprite_x_mode4(context);\ MODE4_CHECK_SLOT_LINE(CALC_SLOT(slot,1))\ case CALC_SLOT(slot, 2):\ + OUTPUT_PIXEL(CALC_SLOT(slot, 2))\ fetch_sprite_cells_mode4(context);\ MODE4_CHECK_SLOT_LINE(CALC_SLOT(slot, 2))\ case CALC_SLOT(slot, 3):\ - if ((slot + 3) == 140) {\ - uint32_t *dst = context->output + BORDER_LEFT + 256 + 8;\ - uint32_t bgcolor = context->colors[0x10 | (context->regs[REG_BG_COLOR] & 0xF) + MODE4_OFFSET];\ - for (int i = 0; i < BORDER_RIGHT-8; i++, dst++)\ - {\ - *dst = bgcolor;\ - }\ - context->done_output = dst;\ - }\ + OUTPUT_PIXEL(CALC_SLOT(slot, 3))\ render_sprite_cells_mode4(context);\ MODE4_CHECK_SLOT_LINE(CALC_SLOT(slot, 3))\ case CALC_SLOT(slot, 4):\ + OUTPUT_PIXEL(CALC_SLOT(slot, 4))\ fetch_sprite_cells_mode4(context);\ MODE4_CHECK_SLOT_LINE(CALC_SLOT(slot, 4))\ case CALC_SLOT(slot, 5):\ + OUTPUT_PIXEL(CALC_SLOT(slot, 5))\ render_sprite_cells_mode4(context);\ MODE4_CHECK_SLOT_LINE(CALC_SLOT(slot, 5)) @@ -2411,11 +2446,14 @@ static void vdp_h40(vdp_context * context, uint32_t target_cycles) uint16_t address; uint32_t mask; uint32_t const slot_cycles = MCLKS_SLOT_H40; + uint8_t bgindex = context->regs[REG_BG_COLOR] & 0x3F; + uint8_t test_layer = context->test_port >> 7 & 3; switch(context->hslot) { for (;;) { case 165: + OUTPUT_PIXEL(165) if (!(context->regs[REG_MODE_3] & BIT_VSCROLL)) { //TODO: Develop some tests on hardware to see when vscroll latch actually happens for full plane mode //See note in vdp_h32 for why this was originally moved out of read_map_scroll @@ -2425,31 +2463,14 @@ static void vdp_h40(vdp_context * context, uint32_t target_cycles) context->vscroll_latch[1] = context->vsram[1]; } if (context->state == PREPARING) { - uint32_t bg_color = context->colors[context->regs[REG_BG_COLOR] & 0x3F]; - uint32_t *dst = context->output + (context->hslot - BG_START_SLOT) * 2; - if (dst >= context->done_output) { - *dst = bg_color; - } - dst++; - if (dst >= context->done_output) { - *dst = bg_color; - } external_slot(context); } else { render_sprite_cells(context); } CHECK_LIMIT case 166: + OUTPUT_PIXEL(166) if (context->state == PREPARING) { - uint32_t bg_color = context->colors[context->regs[REG_BG_COLOR] & 0x3F]; - uint32_t *dst = context->output + (context->hslot - BG_START_SLOT) * 2; - if (dst >= context->done_output) { - *dst = bg_color; - } - dst++; - if (dst >= context->done_output) { - *dst = bg_color; - } external_slot(context); } else { render_sprite_cells(context); @@ -2462,16 +2483,7 @@ static void vdp_h40(vdp_context * context, uint32_t target_cycles) CHECK_LIMIT //sprite attribute table scan starts case 167: - if (context->state == PREPARING) { - uint32_t bg_color = context->colors[context->regs[REG_BG_COLOR] & 0x3F]; - uint32_t *dst = context->output + (context->hslot - BG_START_SLOT) * 2; - for (int i = 0; i < LINEBUF_SIZE - 2 * (context->hslot - BG_START_SLOT); i++, dst++) - { - if (dst >= context->done_output) { - *dst = bg_color; - } - } - } + OUTPUT_PIXEL(167) context->sprite_index = 0x80; context->slot_counter = 0; render_border_garbage( @@ -2591,13 +2603,16 @@ static void vdp_h40(vdp_context * context, uint32_t target_cycles) COLUMN_RENDER_BLOCK(38, 145) COLUMN_RENDER_BLOCK_REFRESH(40, 153) case 161: + OUTPUT_PIXEL(161) external_slot(context); CHECK_LIMIT case 162: + OUTPUT_PIXEL(162) external_slot(context); CHECK_LIMIT //sprite render to line buffer starts case 163: + OUTPUT_PIXEL(163) context->cur_slot = MAX_DRAWS-1; memset(context->linebuf, 0, LINEBUF_SIZE); render_border_garbage( @@ -2609,6 +2624,7 @@ static void vdp_h40(vdp_context * context, uint32_t target_cycles) render_sprite_cells(context); CHECK_LIMIT case 164: + OUTPUT_PIXEL(164) render_border_garbage( context, context->sprite_draw_list[context->cur_slot].address, @@ -2636,37 +2652,23 @@ static void vdp_h32(vdp_context * context, uint32_t target_cycles) uint16_t address; uint32_t mask; uint32_t const slot_cycles = MCLKS_SLOT_H32; + uint8_t bgindex = context->regs[REG_BG_COLOR] & 0x3F; + uint8_t test_layer = context->test_port >> 7 & 3; switch(context->hslot) { for (;;) { case 133: + OUTPUT_PIXEL(133) if (context->state == PREPARING) { - uint32_t bg_color = context->colors[context->regs[REG_BG_COLOR] & 0x3F]; - uint32_t *dst = context->output + (context->hslot - BG_START_SLOT) * 2; - if (dst >= context->done_output) { - *dst = bg_color; - } - dst++; - if (dst >= context->done_output) { - *dst = bg_color; - } external_slot(context); } else { render_sprite_cells(context); } CHECK_LIMIT case 134: + OUTPUT_PIXEL(134) if (context->state == PREPARING) { - uint32_t bg_color = context->colors[context->regs[REG_BG_COLOR] & 0x3F]; - uint32_t *dst = context->output + (context->hslot - BG_START_SLOT) * 2; - if (dst >= context->done_output) { - *dst = bg_color; - } - dst++; - if (dst >= context->done_output) { - *dst = bg_color; - } external_slot(context); } else { render_sprite_cells(context); @@ -2679,16 +2681,7 @@ static void vdp_h32(vdp_context * context, uint32_t target_cycles) CHECK_LIMIT //sprite attribute table scan starts case 135: - if (context->state == PREPARING) { - uint32_t bg_color = context->colors[context->regs[REG_BG_COLOR] & 0x3F]; - uint32_t *dst = context->output + (context->hslot - BG_START_SLOT) * 2; - for (int i = 0; i < (256+HORIZ_BORDER) - 2 * (context->hslot - BG_START_SLOT); i++) - { - if (dst >= context->done_output) { - *(dst++) = bg_color; - } - } - } + OUTPUT_PIXEL(135) context->sprite_index = 0x80; context->slot_counter = 0; render_border_garbage( @@ -2710,6 +2703,7 @@ static void vdp_h32(vdp_context * context, uint32_t target_cycles) SPRITE_RENDER_H32(143) SPRITE_RENDER_H32(144) case 145: + OUTPUT_PIXEL(145) external_slot(context); CHECK_LIMIT SPRITE_RENDER_H32(146) @@ -2815,14 +2809,17 @@ static void vdp_h32(vdp_context * context, uint32_t target_cycles) COLUMN_RENDER_BLOCK(30, 113) COLUMN_RENDER_BLOCK_REFRESH(32, 121) case 129: + OUTPUT_PIXEL(129) external_slot(context); CHECK_LIMIT case 130: { + OUTPUT_PIXEL(130) external_slot(context); CHECK_LIMIT } //sprite render to line buffer starts case 131: + OUTPUT_PIXEL(131) context->cur_slot = MAX_DRAWS_H32-1; memset(context->linebuf, 0, LINEBUF_SIZE); render_border_garbage( @@ -2834,6 +2831,7 @@ static void vdp_h32(vdp_context * context, uint32_t target_cycles) render_sprite_cells(context); CHECK_LIMIT case 132: + OUTPUT_PIXEL(132) render_border_garbage( context, context->sprite_draw_list[context->cur_slot].address, @@ -2860,6 +2858,8 @@ static void vdp_h32_mode4(vdp_context * context, uint32_t target_cycles) uint16_t address; uint32_t mask; uint32_t const slot_cycles = MCLKS_SLOT_H32; + uint8_t bgindex = 0x10 | (context->regs[REG_BG_COLOR] & 0xF) + MODE4_OFFSET; + uint8_t test_layer = context->test_port >> 7 & 3; switch(context->hslot) { for (;;) @@ -2909,13 +2909,6 @@ static void vdp_h32_mode4(vdp_context * context, uint32_t target_cycles) CHECK_LIMIT case 0: { scan_sprite_table_mode4(context); - uint32_t *dst = context->output;; - uint32_t bgcolor = context->colors[0x10 | (context->regs[REG_BG_COLOR] & 0xF) + MODE4_OFFSET]; - for (int i = 0; i < BORDER_LEFT-8; i++, dst++) - { - *dst = bgcolor; - } - context->done_output = dst; CHECK_LIMIT } case 1: @@ -2931,13 +2924,6 @@ static void vdp_h32_mode4(vdp_context * context, uint32_t target_cycles) scan_sprite_table_mode4(context); context->buf_a_off = 8; memset(context->tmp_buf_a, 0, 8); - uint32_t *dst = context->output + BORDER_LEFT - 8; - uint32_t bgcolor = context->colors[0x10 | (context->regs[REG_BG_COLOR] & 0xF) + MODE4_OFFSET]; - for (int i = 0; i < 8; i++, dst++) - { - *dst = bgcolor; - } - context->done_output = dst; CHECK_LIMIT } COLUMN_RENDER_BLOCK_MODE4(0, 5) @@ -2973,27 +2959,24 @@ static void vdp_h32_mode4(vdp_context * context, uint32_t target_cycles) COLUMN_RENDER_BLOCK_MODE4(30, 125) COLUMN_RENDER_BLOCK_MODE4(31, 129) case 133: + OUTPUT_PIXEL(133) external_slot(context); CHECK_LIMIT case 134: + OUTPUT_PIXEL(134) external_slot(context); CHECK_LIMIT case 135: + OUTPUT_PIXEL(135) external_slot(context); CHECK_LIMIT case 136: { + OUTPUT_PIXEL(136) external_slot(context); //set things up for sprite rendering in the next slot memset(context->linebuf, 0, LINEBUF_SIZE); context->cur_slot = context->sprite_index = MAX_DRAWS_H32_MODE4-1; context->sprite_draws = MAX_DRAWS_H32_MODE4; - uint32_t *dst = context->output + BORDER_LEFT + 256; - uint32_t bgcolor = context->colors[0x10 | (context->regs[REG_BG_COLOR] & 0xF) + MODE4_OFFSET]; - for (int i = 0; i < 8; i++, dst++) - { - *dst = bgcolor; - } - context->done_output = dst; CHECK_LIMIT }} default: @@ -3008,7 +2991,7 @@ static void inactive_test_output(vdp_context *context, uint8_t is_h40, uint8_t t if (context->hslot > max_slot) { return; } - uint32_t *dst = context->output + (context->hslot >> 3) * SCROLL_BUFFER_DRAW; + uint8_t *dst = context->compositebuf + (context->hslot >> 3) * SCROLL_BUFFER_DRAW; int32_t len; uint32_t src_off; if (context->hslot) { @@ -3030,16 +3013,15 @@ static void inactive_test_output(vdp_context *context, uint8_t is_h40, uint8_t t src = context->tmp_buf_b; } else { //sprite layer - for (; len >=0; len--, dst++, src_off++) - { - *dst = context->colors[0]; - } + memset(dst, 0, len); + dst += len; + len = 0; } for (; len >=0; len--, dst++, src_off++) { - *dst = context->colors[src[src_off & SCROLL_BUFFER_MASK] & 0x3F]; + *dst = src[src_off & SCROLL_BUFFER_MASK] & 0x3F; } - context->done_output = dst; + context->done_composite = dst; context->buf_a_off = (context->buf_a_off + SCROLL_BUFFER_DRAW) & SCROLL_BUFFER_DRAW; context->buf_b_off = (context->buf_b_off + SCROLL_BUFFER_DRAW) & SCROLL_BUFFER_DRAW; } @@ -3134,14 +3116,11 @@ static void vdp_inactive(vdp_context *context, uint32_t target_cycles, uint8_t i } uint8_t test_layer = context->test_port >> 7 & 3; - if (test_layer) { - dst = NULL; - } while(context->cycles < target_cycles) { check_switch_inactive(context, is_h40); - if (context->hslot == BG_START_SLOT && !test_layer && ( + if (context->hslot == BG_START_SLOT && ( context->vcounter < context->inactive_start + context->border_bot || context->vcounter >= 0x200 - context->border_top )) { @@ -3200,30 +3179,58 @@ static void vdp_inactive(vdp_context *context, uint32_t target_cycles, uint8_t i } if (dst) { + uint8_t bg_index; if (mode_5) { - bg_color = context->colors[context->regs[REG_BG_COLOR] & 0x3F]; + bg_index = context->regs[REG_BG_COLOR] & 0x3F; + bg_color = context->colors[bg_index]; } else if (context->regs[REG_MODE_1] & BIT_MODE_4) { - bg_color = context->colors[MODE4_OFFSET + 0x10 + (context->regs[REG_BG_COLOR] & 0xF)]; + bg_index = 0x10 + (context->regs[REG_BG_COLOR] & 0xF); + bg_color = context->colors[MODE4_OFFSET + bg_index]; } - if (dst >= context->done_output) { + if (context->done_composite) { + uint8_t pixel = context->compositebuf[dst-context->output]; + if (!(pixel & 0x3F | test_layer)) { + pixel = pixel & 0xC0 | bg_index; + } + *(dst++) = context->colors[pixel]; + if ((dst - context->output) == (context->done_composite - context->compositebuf)) { + context->done_composite = NULL; + memset(context->compositebuf, 0, sizeof(context->compositebuf)); + } + } else { *(dst++) = bg_color; *(debug_dst++) = DBG_SRC_BG; - } else { - dst++; - debug_dst++; } - if (dst >= context->done_output) { + if (context->done_composite) { + uint8_t pixel = context->compositebuf[dst-context->output]; + if (!(pixel & 0x3F | test_layer)) { + pixel = pixel & 0xC0 | bg_index; + } + *(dst++) = context->colors[pixel]; + if ((dst - context->output) == (context->done_composite - context->compositebuf)) { + context->done_composite = NULL; + memset(context->compositebuf, 0, sizeof(context->compositebuf)); + } + } else { *(dst++) = bg_color; *(debug_dst++) = DBG_SRC_BG; - context->done_output = dst; - } else { - dst++; - debug_dst++; } + if (context->hslot == (bg_end_slot-1)) { - *(dst++) = bg_color; - *(debug_dst++) = DBG_SRC_BG; - context->done_output = dst; + if (context->done_composite) { + uint8_t pixel = context->compositebuf[dst-context->output]; + if (!(pixel & 0x3F | test_layer)) { + pixel = pixel & 0xC0 | bg_index; + } + *(dst++) = context->colors[pixel]; + if ((dst - context->output) == (context->done_composite - context->compositebuf)) { + context->done_composite = NULL; + memset(context->compositebuf, 0, sizeof(context->compositebuf)); + } + } else { + *(dst++) = bg_color; + *(debug_dst++) = DBG_SRC_BG; + } } } @@ -163,9 +163,9 @@ typedef struct { system_header *system; //pointer to current line in framebuffer uint32_t *output; - uint32_t *done_output; //pointer to current framebuffer uint32_t *fb; + uint8_t *done_composite; uint32_t *debug_fbs[VDP_NUM_DEBUG_TYPES]; uint32_t output_pitch; uint32_t debug_fb_pitch[VDP_NUM_DEBUG_TYPES]; @@ -205,6 +205,7 @@ typedef struct { uint16_t test_port; //stores 2-bit palette + 4-bit palette index + priority for current sprite line uint8_t linebuf[LINEBUF_SIZE]; + uint8_t compositebuf[LINEBUF_SIZE]; uint8_t layer_debug_buf[LINEBUF_SIZE]; uint8_t hslot; //hcounter/2 uint8_t sprite_index; |