+//
+// Blitter core
+//
+// by cal2
+// GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Caz (BeOS)
+// Cleanups by James L. Hammons
+//
+
#define GEN_CODE
//#define LOG_BLITS
//#define USE_GENERIC_BLITTER
void blitter_blit(uint32 cmd)
{
colour_index = 0;
- src=(cmd&0x07);
- dst=(cmd>>3)&0x07;
- misc=(cmd>>6)&0x03;
- a1ctl=(cmd>>8)&0x7;
- mode=(cmd>>11)&0x07;
- ity=(cmd>>14)&0x0f;
- zop=(cmd>>18)&0x07;
- op=(cmd>>21)&0x0f;
- ctrl=(cmd>>25)&0x3f;
-
- a1_addr=REG(A1_BASE);
- a2_addr=REG(A2_BASE);
+ src = cmd & 0x07;
+ dst = (cmd >> 3) & 0x07;
+ misc = (cmd >> 6) & 0x03;
+ a1ctl = (cmd >> 8) & 0x7;
+ mode = (cmd >> 11) & 0x07;
+ ity = (cmd >> 14) & 0x0F;
+ zop = (cmd >> 18) & 0x07;
+ op = (cmd >> 21) & 0x0F;
+ ctrl = (cmd >> 25) & 0x3F;
+
+ a1_addr = REG(A1_BASE);
+ a2_addr = REG(A2_BASE);
a1_zoffs = (REG(A1_FLAGS) >> 6) & 7;
a2_zoffs = (REG(A2_FLAGS) >> 6) & 7;
- xadd_a1_control=(REG(A1_FLAGS)>>16)&0x03;
- xadd_a2_control=(REG(A2_FLAGS)>>16)&0x03;
+ xadd_a1_control = (REG(A1_FLAGS) >> 16) & 0x03;
+ xadd_a2_control = (REG(A2_FLAGS) >> 16) & 0x03;
a1_pitch = (REG(A1_FLAGS) & 3) ^ ((REG(A1_FLAGS) & 2) >> 1);
a2_pitch = (REG(A2_FLAGS) & 3) ^ ((REG(A2_FLAGS) & 2) >> 1);
- n_pixels=(REG(PIXLINECOUNTER)&0xffff);
- n_lines=((REG(PIXLINECOUNTER)>>16)&0xffff);
+ n_pixels = REG(PIXLINECOUNTER) & 0xFFFF;
+ n_lines = (REG(PIXLINECOUNTER) >> 16) & 0xFFFF;
- a1_x=(REG(A1_PIXEL)<<16)|(REG(A1_FPIXEL)&0xffff);
- a1_y=(REG(A1_PIXEL)&0xffff0000)|(REG(A1_FPIXEL)>>16);
- a1_width=blitter_scanline_width[((REG(A1_FLAGS)&0x00007E00)>>9)];
+ a1_x = (REG(A1_PIXEL) << 16) | (REG(A1_FPIXEL) & 0xFFFF);
+ a1_y = (REG(A1_PIXEL) & 0xFFFF0000) | (REG(A1_FPIXEL) >> 16);
+ a1_width = blitter_scanline_width[((REG(A1_FLAGS) & 0x00007E00) >> 9)];
- a2_x=(REG(A2_PIXEL)&0x0000ffff)<<16;
- a2_y=(REG(A2_PIXEL)&0xffff0000);
- a2_width=blitter_scanline_width[((REG(A2_FLAGS)&0x00007E00)>>9)];
- a2_mask_x=0xffff|((REG(A2_MASK)&0x0000ffff)<<16);
- a2_mask_y=((REG(A2_MASK)&0xffff0000)|0xffff);
+ a2_x = (REG(A2_PIXEL) & 0x0000FFFF) << 16;
+ a2_y = (REG(A2_PIXEL) & 0xFFFF0000);
+ a2_width = blitter_scanline_width[((REG(A2_FLAGS) & 0x00007E00) >> 9)];
+ a2_mask_x = 0xFFFF | ((REG(A2_MASK) & 0x0000FFFF) << 16);
+ a2_mask_y = ((REG(A2_MASK) & 0xFFFF0000) | 0xFFFF);
//
- if (!((REG(A2_FLAGS))&0x8000))
+ if (!(REG(A2_FLAGS) & 0x8000))
{
- a2_mask_x=0xffffffff; // must be 16.16
- a2_mask_y=0xffffffff; // must be 16.16
+ a2_mask_x = 0xFFFFFFFF; // must be 16.16
+ a2_mask_y = 0xFFFFFFFF; // must be 16.16
}
- a1_phrase_mode=0;
+ a1_phrase_mode = 0;
// determine a1_yadd
if (YADD1_A1)
a1_yadd = 0;
if (YSIGNSUB_A1)
- a1_yadd=-a1_yadd;
+ a1_yadd = -a1_yadd;
// determine a1_xadd
switch (xadd_a1_control)
{
case XADDPHR:
- // add phrase offset to X and truncate
- a1_xadd = 1 << 16;
-
- a1_phrase_mode=1;
- break;
+ // add phrase offset to X and truncate
+ a1_xadd = 1 << 16;
+ a1_phrase_mode = 1;
+ break;
case XADDPIX:
- // add pixelsize (1) to X
- a1_xadd = 1 << 16;
- break;
+ // add pixelsize (1) to X
+ a1_xadd = 1 << 16;
+ break;
case XADD0:
- // add zero (for those nice vertical lines)
- a1_xadd = 0;
- break;
+ // add zero (for those nice vertical lines)
+ a1_xadd = 0;
+ break;
case XADDINC:
- // add the contents of the increment register
- a1_xadd = (REG(A1_INC) << 16) | (REG(A1_FINC) & 0xffff);
- a1_yadd = (REG(A1_INC) & 0xffff0000) | (REG(A1_FINC) >> 16);
- break;
+ // add the contents of the increment register
+ a1_xadd = (REG(A1_INC) << 16) | (REG(A1_FINC) & 0xFFFF);
+ a1_yadd = (REG(A1_INC) & 0xFFFF0000) | (REG(A1_FINC) >> 16);
+ break;
}
if (XSIGNSUB_A1)
- a1_xadd=-a1_xadd;
+ a1_xadd = -a1_xadd;
// determine a2_yadd
- if ((YADD1_A2)||(YADD1_A1))
+ if (YADD1_A2 || YADD1_A1)
a2_yadd = 1 << 16;
else
a2_yadd = 0;
if (YSIGNSUB_A2)
- a2_yadd=-a2_yadd;
+ a2_yadd = -a2_yadd;
- a2_phrase_mode=0;
+ a2_phrase_mode = 0;
// determine a2_xadd
switch (xadd_a2_control)
{
case XADDPHR:
- // add phrase offset to X and truncate
- a2_xadd = 1 << 16;
-
- a2_phrase_mode=1;
- break;
+ // add phrase offset to X and truncate
+ a2_xadd = 1 << 16;
+ a2_phrase_mode = 1;
+ break;
case XADDPIX:
- // add pixelsize (1) to X
- a2_xadd = 1 << 16;
- break;
+ // add pixelsize (1) to X
+ a2_xadd = 1 << 16;
+ break;
case XADD0:
- // add zero (for those nice vertical lines)
- a2_xadd = 0;
- break;
+ // add zero (for those nice vertical lines)
+ a2_xadd = 0;
+ break;
case XADDINC:
- // add the contents of the increment register
- // since there is no register for a2 we just add 1
- a2_xadd = 1 << 16;
- break;
+ // add the contents of the increment register
+ // since there is no register for a2 we just add 1
+ a2_xadd = 1 << 16;
+ break;
}
if (XSIGNSUB_A2)
- a2_xadd=-a2_xadd;
+ a2_xadd = -a2_xadd;
// modify outer loop steps based on command
- a1_step_x=0;
- a1_step_y=0;
- a2_step_x=0;
- a2_step_y=0;
+ a1_step_x = 0;
+ a1_step_y = 0;
+ a2_step_x = 0;
+ a2_step_y = 0;
if (cmd & 0x00000100)
{
a2_step_y = (REG(A2_STEP)&0xffff0000);
}
+ outer_loop = n_lines;
- outer_loop=n_lines;
-
-
- a2_psize=1 << ((REG(A2_FLAGS) >> 3) & 7);
- a1_psize=1 << ((REG(A1_FLAGS) >> 3) & 7);
+ a2_psize = 1 << ((REG(A2_FLAGS) >> 3) & 7);
+ a1_psize = 1 << ((REG(A1_FLAGS) >> 3) & 7);
// zbuffering
if (GOURZ)
{
- zadd=jaguar_long_read(0xF02274);
+ zadd = jaguar_long_read(0xF02274);
- for(int v=0;v<4;v++)
- z_i[v]=(int32)jaguar_long_read(0xF0228C+(v<<2));
+ for(int v=0; v<4; v++)
+ z_i[v] = (int32)jaguar_long_read(0xF0228C + (v << 2));
}
- if ((GOURD)||(GOURZ)||(SRCSHADE))
+ if (GOURD || GOURZ || SRCSHADE)
{
// gouraud shading
gouraud_add = jaguar_long_read(0xF02270);
-
gd_c[0] = jaguar_byte_read(0xF02268);
gd_i[0] = jaguar_byte_read(0xF02269);
- gd_i[0]<<=16;
- gd_i[0]|=jaguar_word_read(0xF02240);
+ gd_i[0] <<= 16;
+ gd_i[0] |= jaguar_word_read(0xF02240);
gd_c[1] = jaguar_byte_read(0xF0226A);
- gd_i[1] = jaguar_byte_read(0xF0226b);
- gd_i[1]<<=16;
- gd_i[1]|=jaguar_word_read(0xF02242);
+ gd_i[1] = jaguar_byte_read(0xF0226B);
+ gd_i[1] <<= 16;
+ gd_i[1] |= jaguar_word_read(0xF02242);
gd_c[2] = jaguar_byte_read(0xF0226C);
- gd_i[2] = jaguar_byte_read(0xF0226d);
- gd_i[2]<<=16;
- gd_i[2]|=jaguar_word_read(0xF02244);
+ gd_i[2] = jaguar_byte_read(0xF0226D);
+ gd_i[2] <<= 16;
+ gd_i[2] |= jaguar_word_read(0xF02244);
gd_c[3] = jaguar_byte_read(0xF0226E);
- gd_i[3] = jaguar_byte_read(0xF0226f);
- gd_i[3]<<=16;
- gd_i[3]|=jaguar_word_read(0xF02246);
+ gd_i[3] = jaguar_byte_read(0xF0226F);
+ gd_i[3] <<= 16;
+ gd_i[3] |= jaguar_word_read(0xF02246);
gd_ia = gouraud_add & 0xFFFFFF;
- if(gd_ia & 0x800000)
+ if (gd_ia & 0x800000)
gd_ia = 0xFF000000 | gd_ia;
gd_ca = (gouraud_add>>24) & 0xFF;
- if(gd_ca & 0x80)
+ if (gd_ca & 0x80)
gd_ca = 0xFFFFFF00 | gd_ca;
}
}
#endif
-
- blitter_working=1;
+ blitter_working = 1;
#ifndef USE_GENERIC_BLITTER
if (!blitter_execute_cached_code(blitter_in_cache(cmd)))
#endif
blitter_generic(cmd);
- blitter_working=0;
+ blitter_working = 0;
}
uint32 blitter_reg_read(uint32 offset)
{
for (int i=0;i<256;i++)
{
- blitter_cache[i]=(struct s_blitter_cache *)malloc(sizeof(struct s_blitter_cache));
+ blitter_cache[i] = (struct s_blitter_cache *)malloc(sizeof(struct s_blitter_cache));
blitter_cache[i]->next=null;
blitter_cache[i]->prev=null;
}
- blitter_cache_init=1;
+ blitter_cache_init = 1;
}
#ifndef USE_GENERIC_BLITTER
#include "include/blit_i.h"
blitter_reset();
#ifdef GEN_CODE
- blitters_code_fp=fopen("include/blit_c.h","awrt");
- blitters_code_init_fp=fopen("include/blit_i.h","awrt");
+ blitters_code_fp = fopen("include/blit_c.h","awrt");
+ blitters_code_init_fp = fopen("include/blit_i.h","awrt");
#endif
}
void blitter_done(void)
{
- blitter_list();
+// blitter_list();
#ifdef GEN_CODE
fclose(blitters_code_fp);
fclose(blitters_code_init_fp);
#endif
+ fprintf(log_get(), "BLIT: Done.\n");
}
void blitter_byte_write(uint32 offset, uint8 data)
case 0x89: blitter_ram[0x6F] = data; break;
case 0x9A: blitter_ram[0x46] = data; break;
case 0x9B: blitter_ram[0x47] = data; break;
-
}
}
projects / virtualjaguar / blobdiff