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Diffstat (limited to 'src/mame/video/tceptor.cpp')
-rw-r--r--src/mame/video/tceptor.cpp66
1 files changed, 34 insertions, 32 deletions
diff --git a/src/mame/video/tceptor.cpp b/src/mame/video/tceptor.cpp
index 1b4f67d31d6..7b14db0b7b7 100644
--- a/src/mame/video/tceptor.cpp
+++ b/src/mame/video/tceptor.cpp
@@ -8,6 +8,8 @@
#include "emu.h"
#include "includes/tceptor.h"
+#include <algorithm>
+
#define TX_TILE_OFFSET_CENTER (32 * 2)
#define TX_TILE_OFFSET_RIGHT (32 * 0 + 2)
@@ -19,67 +21,67 @@
/*******************************************************************/
-PALETTE_INIT_MEMBER(tceptor_state, tceptor)
+void tceptor_state::tceptor_palette(palette_device &palette)
{
const uint8_t *color_prom = memregion("proms")->base();
- int i;
- /* create a lookup table for the palette */
- for (i = 0; i < 0x400; i++)
+ // create a lookup table for the palette
+ for (int i = 0; i < 0x400; i++)
{
- int r = pal4bit(color_prom[i + 0x000]);
- int g = pal4bit(color_prom[i + 0x400]);
- int b = pal4bit(color_prom[i + 0x800]);
+ int const r = pal4bit(color_prom[i + 0x000]);
+ int const g = pal4bit(color_prom[i + 0x400]);
+ int const b = pal4bit(color_prom[i + 0x800]);
palette.set_indirect_color(i, rgb_t(r, g, b));
}
- /* color_prom now points to the beginning of the lookup table */
+ // color_prom now points to the beginning of the lookup table
color_prom += 0xc00;
-
/*
- color lookup table:
- 0- +1024 ( 4 * 256) colors: text (use 0- 256 colors)
- 1024- +1024 (16 * 64) colors: sprite (use 768- 256 colors)
- 2048- +512 ( 8 * 64) colors: bg (use 0- 512 colors)
- 3840- +256 ( 4 * 64) colors: road (use 512- 256 colors)
- */
-
- /* tiles lookup table (1024 colors) */
- for (i = 0; i < 0x0400; i++)
+ color lookup table:
+ 0- +1024 ( 4 * 256) colors: text (use 0- 256 colors)
+ 1024- +1024 (16 * 64) colors: sprite (use 768- 256 colors)
+ 2048- +512 ( 8 * 64) colors: bg (use 0- 512 colors)
+ 3840- +256 ( 4 * 64) colors: road (use 512- 256 colors)
+ */
+
+ // tiles lookup table (1024 colors)
+ for (int i = 0; i < 0x0400; i++)
{
- int ctabentry = color_prom[i];
+ int const ctabentry = color_prom[i];
palette.set_pen_indirect(i, ctabentry);
}
- /* sprites lookup table (1024 colors) */
- for (i = 0x0400; i < 0x0800; i++)
+ // sprites lookup table (1024 colors)
+ for (int i = 0x0400; i < 0x0800; i++)
{
- int ctabentry = color_prom[i] | 0x300;
+ int const ctabentry = color_prom[i] | 0x300;
palette.set_pen_indirect(i, ctabentry);
}
- /* background: no lookup PROM, use directly (512 colors) */
- for (i = 0x0a00; i < 0x0c00; i++)
+ // background: no lookup PROM, use directly (512 colors)
+ for (int i = 0x0a00; i < 0x0c00; i++)
{
- int ctabentry = i & 0x1ff;
+ int const ctabentry = i & 0x1ff;
palette.set_pen_indirect(i, ctabentry);
}
- /* road lookup table (256 colors) */
- for (i = 0x0f00; i < 0x1000; i++)
+ // road lookup table (256 colors)
+ for (int i = 0x0f00; i < 0x1000; i++)
{
- int ctabentry = color_prom[i - 0x700] | 0x200;
+ int const ctabentry = color_prom[i - 0x700] | 0x200;
palette.set_pen_indirect(i, ctabentry);
}
- /* setup sprite mask color map */
- /* tceptor2: only 0x23 */
- memset(m_is_mask_spr, 0, sizeof m_is_mask_spr);
- for (i = 0; i < 0x400; i++)
+ // setup sprite mask color map
+ // tceptor2: only 0x23
+ std::fill(std::begin(m_is_mask_spr), std::end(m_is_mask_spr), 0);
+ for (int i = 0; i < 0x400; i++)
+ {
if (palette.pen_indirect(i | 0x400) == SPR_MASK_COLOR)
m_is_mask_spr[i >> 4] = 1;
+ }
}