#include "objectp.h"
#include "cry2rgb.h"
#include "settings.h"
+#include "clock.h"
+
+#define NEW_TIMER_SYSTEM
// TOM registers (offset from $F00000)
uint16 tom_jerry_int_pending, tom_timer_int_pending, tom_object_int_pending,
tom_gpu_int_pending, tom_video_int_pending;
uint16 * tom_cry_rgb_mix_lut;
-int16 * TOMBackbuffer;
+//int16 * TOMBackbuffer;
+uint32 * TOMBackbuffer;
static char * videoMode_to_str[8] =
{ "16 BPP CRY", "24 BPP RGB", "16 BPP DIRECT", "16 BPP RGB",
"Mixed mode", "24 BPP RGB", "16 BPP DIRECT", "16 BPP RGB" };
-typedef void (render_xxx_scanline_fn)(int16 *);
+typedef void (render_xxx_scanline_fn)(uint32 *);
// Private function prototypes
-void tom_render_16bpp_cry_scanline(int16 * backbuffer);
-void tom_render_24bpp_scanline(int16 * backbuffer);
-void tom_render_16bpp_direct_scanline(int16 * backbuffer);
-void tom_render_16bpp_rgb_scanline(int16 * backbuffer);
-void tom_render_16bpp_cry_rgb_mix_scanline(int16 * backbuffer);
+void tom_render_16bpp_cry_scanline(uint32 * backbuffer);
+void tom_render_24bpp_scanline(uint32 * backbuffer);
+void tom_render_16bpp_direct_scanline(uint32 * backbuffer);
+void tom_render_16bpp_rgb_scanline(uint32 * backbuffer);
+void tom_render_16bpp_cry_rgb_mix_scanline(uint32 * backbuffer);
-void tom_render_16bpp_cry_stretch_scanline(int16 * backbuffer);
-void tom_render_24bpp_stretch_scanline(int16 * backbuffer);
-void tom_render_16bpp_direct_stretch_scanline(int16 * backbuffer);
-void tom_render_16bpp_rgb_stretch_scanline(int16 * backbuffer);
-void tom_render_16bpp_cry_rgb_mix_stretch_scanline(int16 * backbuffer);
+void tom_render_16bpp_cry_stretch_scanline(uint32 * backbuffer);
+void tom_render_24bpp_stretch_scanline(uint32 * backbuffer);
+void tom_render_16bpp_direct_stretch_scanline(uint32 * backbuffer);
+void tom_render_16bpp_rgb_stretch_scanline(uint32 * backbuffer);
+void tom_render_16bpp_cry_rgb_mix_stretch_scanline(uint32 * backbuffer);
render_xxx_scanline_fn * scanline_render_normal[]=
{
Vertical resolution: 238 lines
*/
+uint32 RGB16ToRGB32[0x10000];
+uint32 CRY16ToRGB32[0x10000];
+uint32 MIX16ToRGB32[0x10000];
+
+void TOMFillLookupTables(void)
+{
+ for(uint32 i=0; i<0x10000; i++)
+ RGB16ToRGB32[i] = 0xFF000000
+ | ((i & 0xF100) >> 8) | ((i & 0xE000) >> 13)
+ | ((i & 0x07C0) << 13) | ((i & 0x0700) << 8)
+ | ((i & 0x003F) << 10) | ((i & 0x0030) << 4);
+
+
+ for(uint32 i=0; i<0x10000; i++)
+ {
+ uint32 chrm = (i & 0xF000) >> 12,
+ chrl = (i & 0x0F00) >> 8,
+ y = (i & 0x00FF);
+
+ uint32 r = (((uint32)redcv[chrm][chrl]) * y) >> 8,
+ g = (((uint32)greencv[chrm][chrl]) * y) >> 8,
+ b = (((uint32)bluecv[chrm][chrl]) * y) >> 8;
+
+ CRY16ToRGB32[i] = 0xFF000000 | (b << 16) | (g << 8) | r;
+ MIX16ToRGB32[i] = CRY16ToRGB32[i];
+ }
+
+ for(uint32 i=0; i<0x10000; i++)
+ if (i & 0x01)
+ MIX16ToRGB32[i] = RGB16ToRGB32[i];
+}
-void tom_calc_cry_rgb_mix_lut(void)
+/*void tom_calc_cry_rgb_mix_lut(void)
{
for (uint32 i=0; i<0x10000; i++)
{
tom_cry_rgb_mix_lut[i] = color;
}
-}
+}*/
void tom_set_pending_jerry_int(void)
{
//
// 16 BPP CRY/RGB mixed mode rendering
//
-void tom_render_16bpp_cry_rgb_mix_scanline(int16 * backbuffer)
+void tom_render_16bpp_cry_rgb_mix_scanline(uint32 * backbuffer)
{
+//CHANGED TO 32BPP RENDERING
uint16 width = tom_width;
uint8 * current_line_buffer = (uint8 *)&tom_ram_8[0x1800];
//This case doesn't properly handle the "start on the right side of virtual screen" case
//Dunno why--looks Ok...
//What *is* for sure wrong is that it doesn't copy the linebuffer's BG pixels...
+//This should likely be 4 instead of 2 (?--not sure)
backbuffer += 2 * startPos, width -= startPos;
while (width)
{
uint16 color = (*current_line_buffer++) << 8;
color |= *current_line_buffer++;
- *backbuffer++ = tom_cry_rgb_mix_lut[color];
+// *backbuffer++ = tom_cry_rgb_mix_lut[color];
+ *backbuffer++ = MIX16ToRGB32[color];
width--;
}
}
//
// 16 BPP CRY mode rendering
//
-void tom_render_16bpp_cry_scanline(int16 * backbuffer)
+void tom_render_16bpp_cry_scanline(uint32 * backbuffer)
{
+//CHANGED TO 32BPP RENDERING
uint16 width = tom_width;
uint8 * current_line_buffer = (uint8 *)&tom_ram_8[0x1800];
if (startPos < 0)
current_line_buffer += 2 * -startPos;
else
+//This should likely be 4 instead of 2 (?--not sure)
backbuffer += 2 * startPos, width -= startPos;
while (width)
{
uint16 color = (*current_line_buffer++) << 8;
color |= *current_line_buffer++;
-
- uint32 chrm = (color & 0xF000) >> 12,
- chrl = (color & 0x0F00) >> 8,
- y = (color & 0x00FF);
-
- uint16 red = (((uint32)redcv[chrm][chrl]) * y) >> 11,
- green = (((uint32)greencv[chrm][chrl]) * y) >> 11,
- blue = (((uint32)bluecv[chrm][chrl]) * y) >> 11;
-
- *backbuffer++ = (red << 10) | (green << 5) | blue;
+ *backbuffer++ = CRY16ToRGB32[color];
width--;
}
}
//
// 24 BPP mode rendering
//
-void tom_render_24bpp_scanline(int16 * backbuffer)
+void tom_render_24bpp_scanline(uint32 * backbuffer)
{
+//CHANGED TO 32BPP RENDERING
uint16 width = tom_width;
uint8 * current_line_buffer = (uint8 *)&tom_ram_8[0x1800];
if (startPos < 0)
current_line_buffer += 4 * -startPos;
else
+//This should likely be 4 instead of 2 (?--not sure)
backbuffer += 2 * startPos, width -= startPos;
while (width)
{
- // This is NOT a good 8 -> 5 bit RGB conversion! (It saturates values below 8
- // to zero and throws away almost *half* the color resolution!)
- uint16 green = (*current_line_buffer++) >> 3;
- uint16 red = (*current_line_buffer++) >> 3;
+ uint32 g = *current_line_buffer++;
+ uint32 r = *current_line_buffer++;
current_line_buffer++;
- uint16 blue = (*current_line_buffer++) >> 3;
- *backbuffer++ = (red << 10) | (green << 5) | blue;
+ uint32 b = *current_line_buffer++;
+ *backbuffer++ = 0xFF000000 | (b << 16) | (g << 8) | r;
width--;
}
}
//
// 16 BPP direct mode rendering
//
-void tom_render_16bpp_direct_scanline(int16 * backbuffer)
+void tom_render_16bpp_direct_scanline(uint32 * backbuffer)
{
uint16 width = tom_width;
uint8 * current_line_buffer = (uint8 *)&tom_ram_8[0x1800];
//
// 16 BPP RGB mode rendering
//
-void tom_render_16bpp_rgb_scanline(int16 * backbuffer)
+void tom_render_16bpp_rgb_scanline(uint32 * backbuffer)
{
+//CHANGED TO 32BPP RENDERING
+ // 16 BPP RGB: 0-5 green, 6-10 blue, 11-15 red
+
uint16 width = tom_width;
uint8 * current_line_buffer = (uint8 *)&tom_ram_8[0x1800];
//NOTE: May have to check HDB2 as well!
int16 startPos = GET16(tom_ram_8, HDB1) - (vjs.hardwareTypeNTSC ? LEFT_VISIBLE_HC : LEFT_VISIBLE_HC_PAL); // Get start position in HC ticks
startPos /= pwidth;
+
if (startPos < 0)
current_line_buffer += 2 * -startPos;
else
+//This should likely be 4 instead of 2 (?--not sure)
backbuffer += 2 * startPos, width -= startPos;
while (width)
{
- uint16 color = (*current_line_buffer++) << 8;
- color = (color | *current_line_buffer++) >> 1;
- color = (color&0x7C00) | ((color&0x03E0) >> 5) | ((color&0x001F) << 5);
- *backbuffer++ = color;
+ uint32 color = (*current_line_buffer++) << 8;
+ color |= *current_line_buffer++;
+ *backbuffer++ = RGB16ToRGB32[color];
width--;
}
}
-// This stuff may just go away by itself, especially if we do some
-// good old OpenGL goodness...
+/////////////////////////////////////////////////////////////////////
+// This stuff may just go away by itself, especially if we do some //
+// good old OpenGL goodness... //
+/////////////////////////////////////////////////////////////////////
-void tom_render_16bpp_cry_rgb_mix_stretch_scanline(int16 *backbuffer)
+void tom_render_16bpp_cry_rgb_mix_stretch_scanline(uint32 *backbuffer)
{
uint16 width=tom_width;
uint8 *current_line_buffer=(uint8*)&tom_ram_8[0x1800];
}
}
-void tom_render_16bpp_cry_stretch_scanline(int16 *backbuffer)
+void tom_render_16bpp_cry_stretch_scanline(uint32 *backbuffer)
{
uint32 chrm, chrl, y;
}
}
-void tom_render_24bpp_stretch_scanline(int16 *backbuffer)
+void tom_render_24bpp_stretch_scanline(uint32 *backbuffer)
{
uint16 width=tom_width;
uint8 *current_line_buffer=(uint8*)&tom_ram_8[0x1800];
}
}
-void tom_render_16bpp_direct_stretch_scanline(int16 *backbuffer)
+void tom_render_16bpp_direct_stretch_scanline(uint32 *backbuffer)
{
uint16 width=tom_width;
uint8 *current_line_buffer=(uint8*)&tom_ram_8[0x1800];
}
}
-void tom_render_16bpp_rgb_stretch_scanline(int16 *backbuffer)
+void tom_render_16bpp_rgb_stretch_scanline(uint32 *backbuffer)
{
uint16 width=tom_width;
uint8 *current_line_buffer=(uint8*)&tom_ram_8[0x1800];
}
}
-void TOMResetBackbuffer(int16 * backbuffer)
+void TOMResetBackbuffer(uint32 * backbuffer)
{
TOMBackbuffer = backbuffer;
}
else
{
// If outside of VDB & VDE, then display the border color
- int16 * currentLineBuffer = TOMBackbuffer;
+/* int16 * currentLineBuffer = TOMBackbuffer;
+ uint8 g = tom_ram_8[BORD1], r = tom_ram_8[BORD1 + 1], b = tom_ram_8[BORD2 + 1];
+ uint16 pixel = ((r & 0xF8) << 7) | ((g & 0xF8) << 2) | (b >> 3);//*/
+ uint32 * currentLineBuffer = TOMBackbuffer;
uint8 g = tom_ram_8[BORD1], r = tom_ram_8[BORD1 + 1], b = tom_ram_8[BORD2 + 1];
- uint16 pixel = ((r & 0xF8) << 7) | ((g & 0xF8) << 2) | (b >> 3);
+ uint32 pixel = 0xFF000000 | (b << 16) | (g << 8) | r;
for(uint32 i=0; i<tom_width; i++)
*currentLineBuffer++ = pixel;
}
- TOMBackbuffer += GetSDLScreenPitch() / 2; // Returns bytes, but we need words
+// TOMBackbuffer += GetSDLScreenPitch() / 2; // Returns bytes, but we need words
+ TOMBackbuffer += GetSDLScreenWidthInPixels();
}
}
tom_reset();
// Setup the non-stretchy scanline rendering...
memcpy(scanline_render, scanline_render_normal, sizeof(scanline_render));
- tom_calc_cry_rgb_mix_lut();
+// tom_calc_cry_rgb_mix_lut();
+ TOMFillLookupTables();
}
void tom_done(void)
return (tom_ram_8[0xE0] << 8) | tom_ram_8[0xE1];
}*/
+// NEW:
+// TOM Programmable Interrupt Timer handler
+// NOTE: TOM's PIT is only enabled if the prescaler is != 0
+// The PIT only generates an interrupt when it counts down to zero, not when loaded!
+
+void TOMPITCallback(void);
+
void TOMResetPIT(void)
{
+#ifndef NEW_TIMER_SYSTEM
//Probably should *add* this amount to the counter to retain cycle accuracy! !!! FIX !!! [DONE]
//Also, why +1??? 'Cause that's what it says in the JTRM...!
//There is a small problem with this approach: If both the prescaler and the divider are equal
if (tom_timer_prescaler)
tom_timer_counter += (1 + tom_timer_prescaler) * (1 + tom_timer_divider);
// WriteLog("tom: reseting timer to 0x%.8x (%i)\n",tom_timer_counter,tom_timer_counter);
+#else
+ // Need to remove previous timer from the queue, if it exists...
+ RemoveCallback(TOMPITCallback);
+
+ if (tom_timer_prescaler)
+ {
+ double usecs = (float)(tom_timer_prescaler + 1) * (float)(tom_timer_divider + 1) * RISC_CYCLE_IN_USEC;
+ SetCallbackTime(TOMPITCallback, usecs);
+ }
+#endif
}
//
}
}
}
+
+
+void TOMPITCallback(void)
+{
+// INT1_RREG |= 0x08; // Set TOM PIT interrupt pending
+ tom_set_pending_timer_int();
+ GPUSetIRQLine(GPUIRQ_TIMER, ASSERT_LINE); // It does the 'IRQ enabled' checking
+
+// if (INT1_WREG & 0x08)
+ if (tom_irq_enabled(IRQ_TIMER))
+ m68k_set_irq(7); // Generate 68K NMI
+
+ TOMResetPIT();
+}
projects / virtualjaguar / blobdiff