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-rw-r--r--src/mame/video/midtunit.cpp1091
1 files changed, 0 insertions, 1091 deletions
diff --git a/src/mame/video/midtunit.cpp b/src/mame/video/midtunit.cpp
deleted file mode 100644
index 8bf3e3510b7..00000000000
--- a/src/mame/video/midtunit.cpp
+++ /dev/null
@@ -1,1091 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Alex Pasadyn, Zsolt Vasvari, Ernesto Corvi, Aaron Giles
-// thanks-to:Kurt Mahan
-/*************************************************************************
-
- Video Emulation for Midway T-unit, W-unit, and X-unit games.
-
-**************************************************************************/
-
-#include "emu.h"
-#include "midtunit.h"
-#include "midtunit.ipp"
-#include "screen.h"
-#include "midtview.ipp"
-
-#include "debug/debugcon.h"
-#include "debug/debugcmd.h"
-#include "debugger.h"
-
-#include "emuopts.h" // Used by PNG logging
-#include "png.h" // Used by PNG logging
-
-#include <rapidjson/prettywriter.h> // Used by JSON logging
-#include <rapidjson/stringbuffer.h> // Used by JSON logging
-
-DEFINE_DEVICE_TYPE(MIDTUNIT_VIDEO, midtunit_video_device, "tunitvid", "Midway T-Unit Video")
-DEFINE_DEVICE_TYPE(MIDWUNIT_VIDEO, midwunit_video_device, "wunitvid", "Midway W-Unit Video")
-DEFINE_DEVICE_TYPE(MIDXUNIT_VIDEO, midxunit_video_device, "xunitvid", "Midway X-Unit Video")
-
-/* compile-time options */
-#define LOG_DMA 0 /* DMAs are logged if the 'L' key is pressed */
-
-midtunit_video_device::midtunit_video_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
- : device_t(mconfig, type, tag, owner, clock)
- , m_maincpu(*this, finder_base::DUMMY_TAG)
- , m_palette(*this, finder_base::DUMMY_TAG)
- , m_gfxrom(*this, finder_base::DUMMY_TAG)
-#if DEBUG_MIDTUNIT_BLITTER
- , m_debug_palette(*this, "debugpalette")
-#endif
-{
-}
-
-midtunit_video_device::midtunit_video_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
- : midtunit_video_device(mconfig, MIDTUNIT_VIDEO, tag, owner, clock)
-{
-}
-
-midwunit_video_device::midwunit_video_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
- : midtunit_video_device(mconfig, type, tag, owner, clock)
-{
-}
-
-midwunit_video_device::midwunit_video_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
- : midtunit_video_device(mconfig, MIDWUNIT_VIDEO, tag, owner, clock)
-{
-}
-
-midxunit_video_device::midxunit_video_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
- : midwunit_video_device(mconfig, MIDXUNIT_VIDEO, tag, owner, clock)
-{
-}
-
-/*************************************
- *
- * Debugger commands
- *
- *************************************/
-
-void midtunit_video_device::debug_init()
-{
- if (machine().debug_flags & DEBUG_FLAG_ENABLED)
- {
- using namespace std::placeholders;
- machine().debugger().console().register_command("midblit", CMDFLAG_CUSTOM_HELP, 0, 1, 4, std::bind(&midtunit_video_device::debug_commands, this, _1, _2));
- }
-}
-
-void midtunit_video_device::debug_commands(int ref, const std::vector<std::string> &params)
-{
- if (params.size() < 1)
- return;
-
- if (params[0] == "pngdma")
- debug_png_dma_command(ref, params);
- else
- debug_help_command(ref, params);
-}
-
-void midtunit_video_device::debug_help_command(int ref, const std::vector<std::string> &params)
-{
- debugger_console &con = machine().debugger().console();
-
- con.printf("Available Midway Blitter commands:\n");
- con.printf(" midblit pngdma,<enable>[,<path>][,<logjson>] -- Enable or disable dumping of DMA-drawn sprite PNGs to <path>, with or without JSON metadata\n");
- con.printf(" midblit help -- this list\n");
-}
-
-void midtunit_video_device::debug_png_dma_command(int ref, const std::vector<std::string> &params)
-{
- debugger_console &con = machine().debugger().console();
-
- if (params.size() < 2)
- {
- con.printf("Error: not enough parameters for midblit pngdma command\n");
- return;
- }
-
- if (params.size() > 4)
- {
- con.printf("Error: too many parameters for midblit pngdma command\n");
- return;
- }
-
- bool old_state = m_log_png;
- bool new_state = false;
- if (!machine().debugger().commands().validate_boolean_parameter(params[1], new_state))
- return;
-
- if (!new_state)
- {
- if (params.size() > 2)
- {
- con.printf("Error: too many parameters for midblit pngdma command\n");
- return;
- }
- m_log_png = false;
- return;
- }
-
- if (params.size() < 3)
- {
- con.printf("Error: not enough parameters for midblit pngdma command\n");
- return;
- }
-
- if (params[2].empty() || params[2].length() > 2047)
- {
- con.printf("Error: invalid path parameter for midblit pngdma command\n");
- return;
- }
-
- strncpy(m_log_path, params[2].c_str(), 2047);
-
- if (params.size() == 4)
- {
- if (!machine().debugger().commands().validate_boolean_parameter(params[3], m_log_json))
- return;
- }
-
- m_log_png = new_state;
-
- if (!old_state && new_state)
- {
- m_logged_rom = make_unique_clear<uint64_t[]>(0x4000000);
- }
- else if (old_state && !new_state)
- {
- m_logged_rom.reset();
- }
-}
-
-
-/*************************************
- *
- * Video startup
- *
- *************************************/
-
-void midtunit_video_device::device_start()
-{
- debug_init();
-
- /* allocate memory */
- m_local_videoram = std::make_unique<uint16_t[]>(0x100000/2);
-
-#if DEBUG_MIDTUNIT_BLITTER
- m_debug_videoram = std::make_unique<uint16_t[]>(0x100000/2);
-#endif
-
- m_logged_rom.reset();
- m_log_png = false;
-
- m_dma_timer = timer_alloc(TIMER_DMA);
-
- /* reset all the globals */
- m_gfxbank_offset[0] = 0x000000;
- m_gfxbank_offset[1] = 0x400000;
-
- memset(m_dma_register, 0, sizeof(m_dma_register));
- memset(&m_dma_state, 0, sizeof(dma_state));
- m_dma_state.gfxrom = m_gfxrom->base();
-
- /* register for state saving */
- save_item(NAME(m_midtunit_control));
- save_item(NAME(m_gfxbank_offset));
- save_pointer(NAME(m_local_videoram), 0x100000/sizeof(m_local_videoram[0]));
- save_item(NAME(m_videobank_select));
- save_item(NAME(m_dma_register));
-
- INIT_TEMPLATED_DMA_DRAW_GROUP(m_dma_draw_skip_scale, true, true);
- INIT_TEMPLATED_DMA_DRAW_GROUP(m_dma_draw_noskip_scale, false, true);
- INIT_TEMPLATED_DMA_DRAW_GROUP(m_dma_draw_skip_noscale, true, false);
- INIT_TEMPLATED_DMA_DRAW_GROUP(m_dma_draw_noskip_noscale, false, false);
-
- m_gfx_rom_large = false;
-}
-
-void midwunit_video_device::device_start()
-{
- midtunit_video_device::device_start();
- m_gfx_rom_large = true;
-}
-
-void midxunit_video_device::device_start()
-{
- midtunit_video_device::device_start();
- m_gfx_rom_large = true;
- m_videobank_select = 1;
-}
-
-
-
-/*************************************
- *
- * Banked graphics ROM access
- *
- *************************************/
-
-READ16_MEMBER(midtunit_video_device::midtunit_gfxrom_r)
-{
- uint8_t *base = m_gfxrom->base() + m_gfxbank_offset[(offset >> 21) & 1];
- offset = (offset & 0x01fffff) * 2;
- return base[offset] | (base[offset + 1] << 8);
-}
-
-
-READ16_MEMBER(midwunit_video_device::midwunit_gfxrom_r)
-{
- uint8_t *base = m_gfxrom->base() + m_gfxbank_offset[0];
- offset *= 2;
- return base[offset] | (base[offset + 1] << 8);
-}
-
-
-
-/*************************************
- *
- * Video RAM read/write
- *
- *************************************/
-
-WRITE16_MEMBER(midtunit_video_device::midtunit_vram_w)
-{
- offset *= 2;
- if (m_videobank_select)
- {
- if (ACCESSING_BITS_0_7)
- m_local_videoram[offset] = (data & 0xff) | ((m_dma_register[DMA_PALETTE] & 0xff) << 8);
- if (ACCESSING_BITS_8_15)
- m_local_videoram[offset + 1] = ((data >> 8) & 0xff) | (m_dma_register[DMA_PALETTE] & 0xff00);
- }
- else
- {
- if (ACCESSING_BITS_0_7)
- m_local_videoram[offset] = (m_local_videoram[offset] & 0xff) | ((data & 0xff) << 8);
- if (ACCESSING_BITS_8_15)
- m_local_videoram[offset + 1] = (m_local_videoram[offset + 1] & 0xff) | (data & 0xff00);
- }
-}
-
-
-WRITE16_MEMBER(midtunit_video_device::midtunit_vram_data_w)
-{
- offset *= 2;
- if (ACCESSING_BITS_0_7)
- m_local_videoram[offset] = (data & 0xff) | ((m_dma_register[DMA_PALETTE] & 0xff) << 8);
- if (ACCESSING_BITS_8_15)
- m_local_videoram[offset + 1] = ((data >> 8) & 0xff) | (m_dma_register[DMA_PALETTE] & 0xff00);
-}
-
-
-WRITE16_MEMBER(midtunit_video_device::midtunit_vram_color_w)
-{
- offset *= 2;
- if (ACCESSING_BITS_0_7)
- m_local_videoram[offset] = (m_local_videoram[offset] & 0xff) | ((data & 0xff) << 8);
- if (ACCESSING_BITS_8_15)
- m_local_videoram[offset + 1] = (m_local_videoram[offset + 1] & 0xff) | (data & 0xff00);
-}
-
-
-READ16_MEMBER(midtunit_video_device::midtunit_vram_r)
-{
- offset *= 2;
- if (m_videobank_select)
- return (m_local_videoram[offset] & 0x00ff) | (m_local_videoram[offset + 1] << 8);
- else
- return (m_local_videoram[offset] >> 8) | (m_local_videoram[offset + 1] & 0xff00);
-}
-
-
-READ16_MEMBER(midtunit_video_device::midtunit_vram_data_r)
-{
- offset *= 2;
- return (m_local_videoram[offset] & 0x00ff) | (m_local_videoram[offset + 1] << 8);
-}
-
-
-READ16_MEMBER(midtunit_video_device::midtunit_vram_color_r)
-{
- offset *= 2;
- return (m_local_videoram[offset] >> 8) | (m_local_videoram[offset + 1] & 0xff00);
-}
-
-
-
-/*************************************
- *
- * Shift register read/write
- *
- *************************************/
-
-TMS340X0_TO_SHIFTREG_CB_MEMBER(midtunit_video_device::to_shiftreg)
-{
- memcpy(shiftreg, &m_local_videoram[address >> 3], 2 * 512 * sizeof(uint16_t));
-}
-
-
-TMS340X0_FROM_SHIFTREG_CB_MEMBER(midtunit_video_device::from_shiftreg)
-{
- memcpy(&m_local_videoram[address >> 3], shiftreg, 2 * 512 * sizeof(uint16_t));
-}
-
-
-
-/*************************************
- *
- * Control register
- *
- *************************************/
-
-WRITE16_MEMBER(midtunit_video_device::midtunit_control_w)
-{
- /*
- other important bits:
- bit 2 (0x0004) is toggled periodically
- */
- logerror("T-unit control = %04X\n", data);
-
- COMBINE_DATA(&m_midtunit_control);
-
- /* gfx bank select is bit 7 */
- if (!(m_midtunit_control & 0x0080) || !m_gfx_rom_large)
- m_gfxbank_offset[0] = 0x000000;
- else
- m_gfxbank_offset[0] = 0x800000;
-
- /* video bank select is bit 5 */
- m_videobank_select = (m_midtunit_control >> 5) & 1;
-}
-
-
-WRITE16_MEMBER(midwunit_video_device::midwunit_control_w)
-{
- /*
- other important bits:
- bit 2 (0x0004) is toggled periodically
- */
- logerror("Wolf-unit control = %04X\n", data);
-
- COMBINE_DATA(&m_midtunit_control);
-
- /* gfx bank select is bits 8-9 */
- m_gfxbank_offset[0] = 0x800000 * ((m_midtunit_control >> 8) & 3);
-
- /* video bank select is unknown */
- m_videobank_select = (m_midtunit_control >> 11) & 1;
-}
-
-
-READ16_MEMBER(midwunit_video_device::midwunit_control_r)
-{
- return m_midtunit_control;
-}
-
-
-
-/*************************************
- *
- * Palette handlers
- *
- *************************************/
-
-WRITE16_MEMBER(midxunit_video_device::midxunit_paletteram_w)
-{
- if (!(offset & 1))
- m_palette->write16(offset / 2, data, mem_mask);
-}
-
-
-READ16_MEMBER(midxunit_video_device::midxunit_paletteram_r)
-{
- return m_palette->read16(offset / 2);
-}
-
-
-
-/*************************************
- *
- * DMA drawing routines
- *
- *************************************/
-
-/*** fast pixel extractors ***/
-#if !defined(ALIGN_SHORTS) && defined(LSB_FIRST)
-#define EXTRACTGEN(m) ((*(uint16_t *)&base[o >> 3] >> (o & 7)) & (m))
-#elif defined(powerc)
-#define EXTRACTGEN(m) ((__lhbrx(base, o >> 3) >> (o & 7)) & (m))
-#else
-#define EXTRACTGEN(m) (((base[o >> 3] | (base[(o >> 3) + 1] << 8)) >> (o & 7)) & (m))
-#endif
-
-/*** core blitter routine macro ***/
-template <int BitsPerPixel, bool XFlip, bool Skip, bool Scale, midtunit_video_device::op_type_t Zero, midtunit_video_device::op_type_t NonZero>
-void midtunit_video_device::dma_draw()
-{
- int height = m_dma_state.height << 8;
- uint8_t *base = m_dma_state.gfxrom;
- uint32_t offset = m_dma_state.offset;
- uint16_t pal = m_dma_state.palette;
- uint16_t color = pal | m_dma_state.color;
- int sy = m_dma_state.ypos;
- int iy = 0;
- int ty;
- int mask = (1 << BitsPerPixel) - 1;
- int xstep = Scale ? m_dma_state.xstep : 0x100;
-
- /* loop over the height */
- while (iy < height)
- {
- int startskip = m_dma_state.startskip << 8;
- int endskip = m_dma_state.endskip << 8;
- int width = m_dma_state.width << 8;
- int sx = m_dma_state.xpos;
- int ix = 0;
- int tx;
- uint32_t o = offset;
- int pre, post;
- uint16_t *d;
-
- /* handle skipping */
- if (Skip)
- {
- uint8_t value = EXTRACTGEN(0xff);
- o += 8;
-
- /* adjust for preskip */
- pre = (value & 0x0f) << (m_dma_state.preskip + 8);
- tx = pre / xstep;
- if (XFlip)
- sx = (sx - tx) & XPOSMASK;
- else
- sx = (sx + tx) & XPOSMASK;
- ix += tx * xstep;
-
- /* adjust for postskip */
- post = ((value >> 4) & 0x0f) << (m_dma_state.postskip + 8);
- width -= post;
- endskip -= post;
- }
-
- /* handle Y clipping */
- if (sy < m_dma_state.topclip || sy > m_dma_state.botclip)
- goto clipy;
-
- /* handle start skip */
- if (ix < startskip)
- {
- tx = ((startskip - ix) / xstep) * xstep;
- ix += tx;
- o += (tx >> 8) * BitsPerPixel;
- }
-
- /* handle end skip */
- if ((width >> 8) > m_dma_state.width - m_dma_state.endskip)
- width = (m_dma_state.width - m_dma_state.endskip) << 8;
-
- /* determine destination pointer */
-#if DEBUG_MIDTUNIT_BLITTER
- d = m_doing_debug_dma ? &m_debug_videoram[sy * 512] : &m_local_videoram[sy * 512];
-#else
- d = &m_local_videoram[sy * 512];
-#endif
-
- /* loop until we draw the entire width */
- while (ix < width)
- {
- /* only process if not clipped */
- if (sx >= m_dma_state.leftclip && sx <= m_dma_state.rightclip)
- {
- /* special case similar handling of zero/non-zero */
- if (Zero == NonZero)
- {
- if (Zero == PIXEL_COLOR)
- d[sx] = color;
- else if (Zero == PIXEL_COPY)
- d[sx] = (EXTRACTGEN(mask)) | pal;
- }
-
- /* otherwise, read the pixel and look */
- else
- {
- int pixel = (EXTRACTGEN(mask));
-
- /* non-zero pixel case */
- if (pixel)
- {
- if (NonZero == PIXEL_COLOR)
- d[sx] = color;
- else if (NonZero == PIXEL_COPY)
- d[sx] = pixel | pal;
- }
-
- /* zero pixel case */
- else
- {
- if (Zero == PIXEL_COLOR)
- d[sx] = color;
- else if (Zero == PIXEL_COPY)
- d[sx] = pal;
- }
- }
- }
-
- /* update pointers */
- if (XFlip)
- sx = (sx - 1) & XPOSMASK;
- else
- sx = (sx + 1) & XPOSMASK;
-
- /* advance to the next pixel */
- if (!Scale)
- {
- ix += 0x100;
- o += BitsPerPixel;
- }
- else
- {
- tx = ix >> 8;
- ix += xstep;
- tx = (ix >> 8) - tx;
- o += BitsPerPixel * tx;
- }
- }
-
- clipy:
- /* advance to the next row */
- if (m_dma_state.yflip)
- sy = (sy - 1) & YPOSMASK;
- else
- sy = (sy + 1) & YPOSMASK;
- if (!Scale)
- {
- iy += 0x100;
- width = m_dma_state.width;
- if (Skip)
- {
- offset += 8;
- width -= (pre + post) >> 8;
- if (width > 0) offset += width * BitsPerPixel;
- }
- else
- {
- offset += width * BitsPerPixel;
- }
- }
- else
- {
- ty = iy >> 8;
- iy += m_dma_state.ystep;
- ty = (iy >> 8) - ty;
- if (!Skip)
- {
- offset += ty * m_dma_state.width * BitsPerPixel;
- }
- else if (ty--)
- {
- o = offset + 8;
- width = m_dma_state.width - ((pre + post) >> 8);
- if (width > 0) o += width * BitsPerPixel;
- while (ty--)
- {
- uint8_t value = EXTRACTGEN(0xff);
- o += 8;
- pre = (value & 0x0f) << m_dma_state.preskip;
- post = ((value >> 4) & 0x0f) << m_dma_state.postskip;
- width = m_dma_state.width - pre - post;
- if (width > 0) o += width * BitsPerPixel;
- }
- offset = o;
- }
- }
- }
-}
-
-DEFINE_TEMPLATED_DMA_DRAW_GROUP(true, true);
-DEFINE_TEMPLATED_DMA_DRAW_GROUP(false, true);
-DEFINE_TEMPLATED_DMA_DRAW_GROUP(true, false);
-DEFINE_TEMPLATED_DMA_DRAW_GROUP(false, false);
-
-
-/*************************************
- *
- * DMA finished callback
- *
- *************************************/
-
-void midtunit_video_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
-{
- switch (id)
- {
- case TIMER_DMA:
- m_dma_register[DMA_COMMAND] &= ~0x8000; /* tell the cpu we're done */
- m_maincpu->set_input_line(0, ASSERT_LINE);
- break;
- default:
- throw emu_fatalerror("Unknown id in midtunit_video_device::device_timer");
- }
-}
-
-
-
-/*************************************
- *
- * DMA reader
- *
- *************************************/
-
-READ16_MEMBER(midtunit_video_device::midtunit_dma_r)
-{
- /* rmpgwt sometimes reads register 0, expecting it to return the */
- /* current DMA status; thus we map register 0 to register 1 */
- /* openice does it as well */
- if (offset == 0)
- offset = 1;
- return m_dma_register[offset];
-}
-
-
-
-/*************************************
- *
- * DMA write handler
- *
- *************************************/
-
-/*
- * DMA registers
- * ------------------
- *
- * Register | Bit | Use
- * ----------+-FEDCBA9876543210-+------------
- * 0 | xxxxxxxx-------- | pixels to drop at the start of each row
- * | --------xxxxxxxx | pixels to drop at the end of each row
- * 1 | x--------------- | trigger write (or clear if zero)
- * | -421------------ | image bpp (0=8)
- * | ----84---------- | post skip size = (1<<x)
- * | ------21-------- | pre skip size = (1<<x)
- * | --------8------- | pre/post skip enable
- * | ---------4------ | clipping enable
- * | ----------2----- | flip y
- * | -----------1---- | flip x
- * | ------------8--- | blit nonzero pixels as color
- * | -------------4-- | blit zero pixels as color
- * | --------------2- | blit nonzero pixels
- * | ---------------1 | blit zero pixels
- * 2 | xxxxxxxxxxxxxxxx | source address low word
- * 3 | xxxxxxxxxxxxxxxx | source address high word
- * 4 | -------xxxxxxxxx | detination x
- * 5 | -------xxxxxxxxx | destination y
- * 6 | ------xxxxxxxxxx | image columns
- * 7 | ------xxxxxxxxxx | image rows
- * 8 | xxxxxxxxxxxxxxxx | palette
- * 9 | xxxxxxxxxxxxxxxx | color
- * 10 | ---xxxxxxxxxxxxx | scale x
- * 11 | ---xxxxxxxxxxxxx | scale y
- * 12 | -------xxxxxxxxx | top/left clip
- * 13 | -------xxxxxxxxx | bottom/right clip
- * 14 | ---------------- | test
- * 15 | xxxxxxxx-------- | zero detect byte
- * | --------8------- | extra page
- * | ---------4------ | destination size
- * | ----------2----- | select top/bottom or left/right for reg 12/13
- */
-
-WRITE16_MEMBER(midtunit_video_device::midtunit_dma_w)
-{
- static const uint8_t register_map[2][16] =
- {
- { 0,1,2,3,4,5,6,7,8,9,10,11,16,17,14,15 },
- { 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 }
- };
- int regbank = (m_dma_register[DMA_CONFIG] >> 5) & 1;
- int pixels = 0;
-
- /* blend with the current register contents */
- int regnum = register_map[regbank][offset];
- COMBINE_DATA(&m_dma_register[regnum]);
-
- /* only writes to DMA_COMMAND actually cause actions */
- if (regnum != DMA_COMMAND)
- return;
-
- /* high bit triggers action */
- int command = m_dma_register[DMA_COMMAND];
- m_maincpu->set_input_line(0, CLEAR_LINE);
- if (!(command & 0x8000))
- return;
-
- g_profiler.start(PROFILER_USER1);
-
- /* determine bpp */
- int bpp = (command >> 12) & 7;
-
- /* fill in the basic data */
- m_dma_state.xpos = m_dma_register[DMA_XSTART] & XPOSMASK;
- m_dma_state.ypos = m_dma_register[DMA_YSTART] & YPOSMASK;
- m_dma_state.width = m_dma_register[DMA_WIDTH] & 0x3ff;
- m_dma_state.height = m_dma_register[DMA_HEIGHT] & 0x3ff;
- m_dma_state.palette = m_dma_register[DMA_PALETTE] & 0x7f00;
- m_dma_state.color = m_dma_register[DMA_COLOR] & 0xff;
-
- /* fill in the rev 2 data */
- m_dma_state.yflip = (command & 0x20) >> 5;
- m_dma_state.preskip = (command >> 8) & 3;
- m_dma_state.postskip = (command >> 10) & 3;
- m_dma_state.xstep = m_dma_register[DMA_SCALE_X] ? m_dma_register[DMA_SCALE_X] : 0x100;
- m_dma_state.ystep = m_dma_register[DMA_SCALE_Y] ? m_dma_register[DMA_SCALE_Y] : 0x100;
-
- /* clip the clippers */
- m_dma_state.topclip = m_dma_register[DMA_TOPCLIP] & 0x1ff;
- m_dma_state.botclip = m_dma_register[DMA_BOTCLIP] & 0x1ff;
- m_dma_state.leftclip = m_dma_register[DMA_LEFTCLIP] & 0x3ff;
- m_dma_state.rightclip = m_dma_register[DMA_RIGHTCLIP] & 0x3ff;
-
- /* determine the offset */
- uint32_t gfxoffset = m_dma_register[DMA_OFFSETLO] | (m_dma_register[DMA_OFFSETHI] << 16);
-
- /* special case: drawing mode C doesn't need to know about any pixel data */
- if ((command & 0x0f) == 0x0c)
- gfxoffset = 0;
-
- /* determine the location */
- if (!m_gfx_rom_large && gfxoffset >= 0x2000000)
- gfxoffset -= 0x2000000;
- if (gfxoffset >= 0xf8000000)
- gfxoffset -= 0xf8000000;
- if (gfxoffset < 0x10000000)
- m_dma_state.offset = gfxoffset;
- else
- {
- logerror("DMA source out of range: %08X\n", gfxoffset);
- goto skipdma;
- }
-
- if (LOG_DMA || DEBUG_MIDTUNIT_BLITTER)
- {
- if (machine().input().code_pressed(KEYCODE_COLON))
- {
- logerror("DMA command %04X: (bpp=%d skip=%d xflip=%d yflip=%d preskip=%d postskip=%d)\n",
- command, (command >> 12) & 7, (command >> 7) & 1, (command >> 4) & 1, (command >> 5) & 1, (command >> 8) & 3, (command >> 10) & 3);
- logerror(" offset=%08X pos=(%d,%d) w=%d h=%d clip=(%d,%d)-(%d,%d)\n", gfxoffset, m_dma_state.xpos, m_dma_state.ypos,
- m_dma_state.width, m_dma_state.height, m_dma_state.leftclip, m_dma_state.topclip, m_dma_state.rightclip, m_dma_state.botclip);
- logerror(" palette=%04X color=%04X lskip=%02X rskip=%02X xstep=%04X ystep=%04X test=%04X config=%04X\n",
- m_dma_register[DMA_PALETTE], m_dma_register[DMA_COLOR],
- m_dma_register[DMA_LRSKIP] >> 8, m_dma_register[DMA_LRSKIP] & 0xff,
- m_dma_register[DMA_SCALE_X], m_dma_register[DMA_SCALE_Y], m_dma_register[DMA_UNKNOWN_E],
- m_dma_register[DMA_CONFIG]);
- logerror("----\n");
- }
- }
-
- /* there seems to be two types of behavior for the DMA chip */
- /* for MK1 and MK2, the upper byte of the LRSKIP is the */
- /* starting skip value, and the lower byte is the ending */
- /* skip value; for the NBA Jam, Hangtime, and Open Ice, the */
- /* full word seems to be the starting skip value. */
- if (command & 0x40)
- {
- m_dma_state.startskip = m_dma_register[DMA_LRSKIP] & 0xff;
- m_dma_state.endskip = m_dma_register[DMA_LRSKIP] >> 8;
- }
- else
- {
- m_dma_state.startskip = 0;
- m_dma_state.endskip = m_dma_register[DMA_LRSKIP];
- }
-
- if (m_log_png)
- {
- if (command & 0x80)
- {
- log_bitmap(command, bpp ? bpp : 8, true);
- }
- else
- {
- log_bitmap(command, bpp ? bpp : 8, false);
- }
- }
-
- /* then draw */
- if (m_dma_state.xstep == 0x100 && m_dma_state.ystep == 0x100)
- {
- if (command & 0x80)
- ((this)->*(m_dma_draw_skip_noscale[(command & 0x1f)*8 + bpp]))();
- else
- ((this)->*(m_dma_draw_noskip_noscale[(command & 0x1f)*8 + bpp]))();
-
- pixels = m_dma_state.width * m_dma_state.height;
- }
- else
- {
- if (command & 0x80)
- ((this)->*(m_dma_draw_skip_scale[(command & 0x1f)*8 + bpp]))();
- else
- ((this)->*(m_dma_draw_noskip_scale[(command & 0x1f)*8 + bpp]))();
-
- if (m_dma_state.xstep && m_dma_state.ystep)
- pixels = ((m_dma_state.width << 8) / m_dma_state.xstep) * ((m_dma_state.height << 8) / m_dma_state.ystep);
- else
- pixels = 0;
- }
-
- /* signal we're done */
-skipdma:
- m_dma_timer->adjust(attotime::from_nsec(41 * pixels));
-
- g_profiler.stop();
-}
-
-
-
-/*************************************
- *
- * Core refresh routine
- *
- *************************************/
-
-TMS340X0_SCANLINE_IND16_CB_MEMBER(midtunit_video_device::scanline_update)
-{
- uint16_t *src = &m_local_videoram[(params->rowaddr << 9) & 0x3fe00];
- uint16_t *dest = &bitmap.pix16(scanline);
- int coladdr = params->coladdr << 1;
-
- /* copy the non-blanked portions of this scanline */
- for (int x = params->heblnk; x < params->hsblnk; x++)
- dest[x] = src[coladdr++ & 0x1ff] & 0x7fff;
-}
-
-TMS340X0_SCANLINE_IND16_CB_MEMBER(midxunit_video_device::scanline_update)
-{
- uint32_t fulladdr = ((params->rowaddr << 16) | params->coladdr) >> 3;
- uint16_t *src = &m_local_videoram[fulladdr & 0x3fe00];
- uint16_t *dest = &bitmap.pix16(scanline);
-
- /* copy the non-blanked portions of this scanline */
- for (int x = params->heblnk; x < params->hsblnk; x++)
- dest[x] = src[fulladdr++ & 0x1ff] & 0x7fff;
-}
-
-void midtunit_video_device::log_bitmap(int command, int bpp, bool Skip)
-{
- const uint32_t raw_offset = m_dma_register[DMA_OFFSETLO] | (m_dma_register[DMA_OFFSETHI] << 16);
- if (m_logged_rom[raw_offset >> 6] & (1ULL << (raw_offset & 0x3f)))
- return;
-
- int Zero = PIXEL_SKIP;
- int NonZero = PIXEL_SKIP;
- switch (command & 0xf)
- {
- case 1: Zero = PIXEL_COPY; NonZero = PIXEL_SKIP; break;
- case 2: Zero = PIXEL_SKIP; NonZero = PIXEL_COPY; break;
- case 3: Zero = PIXEL_COPY; NonZero = PIXEL_COPY; break;
- case 4: Zero = PIXEL_COLOR; NonZero = PIXEL_SKIP; break;
- case 5: Zero = PIXEL_COLOR; NonZero = PIXEL_SKIP; break;
- case 6: Zero = PIXEL_COLOR; NonZero = PIXEL_COPY; break;
- case 7: Zero = PIXEL_COLOR; NonZero = PIXEL_COPY; break;
- case 8: Zero = PIXEL_SKIP; NonZero = PIXEL_COLOR; break;
- case 9: Zero = PIXEL_COPY; NonZero = PIXEL_COLOR; break;
- case 10: Zero = PIXEL_SKIP; NonZero = PIXEL_COLOR; break;
- case 11: Zero = PIXEL_COPY; NonZero = PIXEL_COLOR; break;
- case 12: Zero = PIXEL_COLOR; NonZero = PIXEL_COLOR; break;
- case 13: Zero = PIXEL_COLOR; NonZero = PIXEL_COLOR; break;
- case 14: Zero = PIXEL_COLOR; NonZero = PIXEL_COLOR; break;
- case 15: Zero = PIXEL_COLOR; NonZero = PIXEL_COLOR; break;
- default: return;
- }
-
- emu_file file(m_log_path, OPEN_FLAG_WRITE | OPEN_FLAG_CREATE | OPEN_FLAG_CREATE_PATHS);
-
- char name_buf[256];
- snprintf(name_buf, 255, "0x%08x.png", raw_offset);
- auto const filerr = file.open(name_buf);
- if (filerr != osd_file::error::NONE)
- {
- return;
- }
-
- m_logged_rom[raw_offset >> 6] |= 1ULL << (raw_offset & 0x3f);
-
- m_log_bitmap.allocate(m_dma_state.width, m_dma_state.height);
- m_log_bitmap.fill(0);
-
- uint8_t *base = m_dma_state.gfxrom;
- uint32_t offset = m_dma_state.offset;
- uint16_t pal = m_dma_state.palette;
- uint16_t color = pal | m_dma_state.color;
- int mask = (1 << bpp) - 1;
-
- /* loop over the height */
- for (int y = 0; y < m_dma_state.height; y++)
- {
- int startskip = m_dma_state.startskip;
- int endskip = m_dma_state.endskip;
- int width = m_dma_state.width;
- int ix = 0;
- int tx;
- uint32_t o = offset;
- int pre, post;
-
- /* handle skipping */
- if (Skip)
- {
- uint8_t value = EXTRACTGEN(0xff);
- o += 8;
-
- /* adjust for preskip */
- pre = (value & 0x0f) << m_dma_state.preskip;
- tx = pre;
- ix += tx;
-
- /* adjust for postskip */
- post = ((value >> 4) & 0x0f) << m_dma_state.postskip;
- width -= post;
- endskip -= post;
- }
-
- /* handle start skip */
- if (ix < startskip)
- {
- tx = (startskip - ix);
- ix += tx;
- o += tx * bpp;
- }
-
- /* handle end skip */
- if (width > m_dma_state.width - m_dma_state.endskip)
- width = m_dma_state.width - m_dma_state.endskip;
-
- bitmap_rgb32::pixel_t *d = &m_log_bitmap.pix(y, ix);
-
- /* determine destination pointer */
-
- /* loop until we draw the entire width */
- while (ix < width)
- {
- /* special case similar handling of zero/non-zero */
- if (Zero == NonZero)
- {
- if (Zero == PIXEL_COLOR)
- *d = m_palette->palette()->entry_list_raw()[color];
- else if (Zero == PIXEL_COPY)
- *d = m_palette->palette()->entry_list_raw()[(EXTRACTGEN(mask)) | pal];
- }
-
- /* otherwise, read the pixel and look */
- else
- {
- int pixel = (EXTRACTGEN(mask));
-
- /* non-zero pixel case */
- if (pixel)
- {
- if (NonZero == PIXEL_COLOR)
- *d = m_palette->palette()->entry_list_raw()[color];
- else if (NonZero == PIXEL_COPY)
- *d = m_palette->palette()->entry_list_raw()[pixel | pal];
- }
-
- /* zero pixel case */
- else
- {
- if (Zero == PIXEL_COLOR)
- *d = m_palette->palette()->entry_list_raw()[color];
- else if (Zero == PIXEL_COPY)
- *d = m_palette->palette()->entry_list_raw()[pal];
- }
- }
-
- /* advance to the next pixel */
- ix++;
- d++;
- o += bpp;
- }
-
- /* advance to the next row */
- width = m_dma_state.width;
- if (Skip)
- {
- offset += 8;
- width -= pre + post;
- if (width > 0) offset += width * bpp;
- }
- else
- {
- offset += width * bpp;
- }
- }
-
- png_write_bitmap(file, nullptr, m_log_bitmap, 0, nullptr);
-
- if (m_log_json)
- {
- char hex_buf[11];
- rapidjson::StringBuffer s;
- rapidjson::PrettyWriter<rapidjson::StringBuffer> writer(s);
- emu_file json(m_log_path, OPEN_FLAG_WRITE | OPEN_FLAG_CREATE | OPEN_FLAG_CREATE_PATHS);
-
- snprintf(name_buf, 255, "0x%08x.json", raw_offset);
- auto const jsonerr = json.open(name_buf);
- if (jsonerr != osd_file::error::NONE)
- {
- return;
- }
-
- writer.StartObject();
- writer.Key("DMAState");
- writer.StartObject();
-
- sprintf(hex_buf, "0x%08x", raw_offset);
- writer.Key("MemoryAddress");
- writer.String(hex_buf);
-
- sprintf(hex_buf, "0x%08x", m_dma_state.offset >> 3);
- writer.Key("ROMSourceOffsetByte");
- writer.String(hex_buf);
-
- writer.Key("ROMSourceOffsetBit");
- writer.Int(m_dma_state.offset & 7);
-
- writer.Key("Size");
- writer.StartArray();
- writer.Int(m_dma_state.width);
- writer.Int(m_dma_state.height);
- writer.EndArray();
-
- writer.Key("BitsPerPixel");
- writer.Uint(bpp);
-
- writer.Key("PaletteBank");
- writer.Uint(m_dma_state.palette >> 8);
-
- writer.Key("FGColor");
- writer.Uint(m_dma_state.color);
-
- writer.Key("YFlip");
- writer.Bool(m_dma_state.yflip ? true : false);
-
- writer.Key("PreSkipScale");
- writer.Uint(m_dma_state.preskip);
-
- writer.Key("PostSkipScale");
- writer.Uint(m_dma_state.postskip);
-
- writer.Key("RowSkipBits");
- writer.Int(m_dma_state.rowbits);
-
- writer.Key("StartPixelsToSkip");
- writer.Int(m_dma_state.startskip);
-
- writer.Key("EndPixelsToSkip");
- writer.Int(m_dma_state.endskip);
-
- writer.EndObject();
- writer.EndObject();
-
- json.puts(s.GetString());
- json.close();
- }
-}