3 * Copyright (C) 2006 Exophase <exophase@gmail.com>
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 #include <pspkernel.h>
29 #include <pspdisplay.h>
35 static float *screen_vertex = (float *)0x441FC100;
36 static u32 *ge_cmd = (u32 *)0x441FC000;
37 static u16 *psp_gu_vram_base = (u16 *)(0x44000000);
38 static u32 *ge_cmd_ptr = (u32 *)0x441FC000;
40 static u32 video_direct = 0;
42 static u32 __attribute__((aligned(16))) display_list[32];
44 #define GBA_SCREEN_WIDTH 240
45 #define GBA_SCREEN_HEIGHT 160
47 #define PSP_SCREEN_WIDTH 480
48 #define PSP_SCREEN_HEIGHT 272
49 #define PSP_LINE_SIZE 512
51 #define PSP_ALL_BUTTON_MASK 0xFFFF
53 #define GE_CMD_FBP 0x9C
54 #define GE_CMD_FBW 0x9D
55 #define GE_CMD_TBP0 0xA0
56 #define GE_CMD_TBW0 0xA8
57 #define GE_CMD_TSIZE0 0xB8
58 #define GE_CMD_TFLUSH 0xCB
59 #define GE_CMD_CLEAR 0xD3
60 #define GE_CMD_VTYPE 0x12
61 #define GE_CMD_BASE 0x10
62 #define GE_CMD_VADDR 0x01
63 #define GE_CMD_IADDR 0x02
64 #define GE_CMD_PRIM 0x04
65 #define GE_CMD_FINISH 0x0F
66 #define GE_CMD_SIGNAL 0x0C
67 #define GE_CMD_NOP 0x00
69 #define GE_CMD(cmd, operand) \
70 *ge_cmd_ptr = (((GE_CMD_##cmd) << 24) | (operand)); \
73 static u16 *screen_texture = (u16 *)(0x4000000 + (512 * 272 * 2));
74 static u16 *current_screen_texture = (u16 *)(0x4000000 + (512 * 272 * 2));
75 static u16 *screen_pixels = (u16 *)(0x4000000 + (512 * 272 * 2));
76 static u32 screen_pitch = 240;
78 static void Ge_Finish_Callback(int id, void *arg)
82 #define get_screen_pixels() \
85 #define get_screen_pitch() \
92 SDL_Surface *hw_screen;
95 const u32 video_scale = 1;
97 #define get_screen_pixels() \
98 ((u16 *)screen->pixels) \
100 #define get_screen_pitch() \
101 (screen->pitch / 2) \
105 void render_scanline_conditional_tile(u32 start, u32 end, u16 *scanline,
106 u32 enable_flags, u32 dispcnt, u32 bldcnt, tile_layer_render_struct
108 void render_scanline_conditional_bitmap(u32 start, u32 end, u16 *scanline,
109 u32 enable_flags, u32 dispcnt, u32 bldcnt, bitmap_layer_render_struct
114 // This old version is not necessary if the palette is either being converted
115 // transparently or the ABGR 1555 format is being used natively. The direct
116 // version (without conversion) is much faster.
118 #define tile_lookup_palette_full(palette, source) \
119 current_pixel = palette[source]; \
120 convert_palette(current_pixel) \
122 #define tile_lookup_palette(palette, source) \
123 current_pixel = palette[source]; \
126 #ifdef RENDER_COLOR16_NORMAL
128 #define tile_expand_base_normal(index) \
129 tile_expand_base_color16(index) \
133 #define tile_expand_base_normal(index) \
134 tile_lookup_palette(palette, current_pixel); \
135 dest_ptr[index] = current_pixel \
139 #define tile_expand_transparent_normal(index) \
140 tile_expand_base_normal(index) \
142 #define tile_expand_copy(index) \
143 dest_ptr[index] = copy_ptr[index] \
146 #define advance_dest_ptr_base(delta) \
149 #define advance_dest_ptr_transparent(delta) \
150 advance_dest_ptr_base(delta) \
152 #define advance_dest_ptr_copy(delta) \
153 advance_dest_ptr_base(delta); \
157 #define color_combine_mask_a(layer) \
158 ((io_registers[REG_BLDCNT] >> layer) & 0x01) \
160 // For color blending operations, will create a mask that has in bit
161 // 10 if the layer is target B, and bit 9 if the layer is target A.
163 #define color_combine_mask(layer) \
164 (color_combine_mask_a(layer) | \
165 ((io_registers[REG_BLDCNT] >> (layer + 7)) & 0x02)) << 9 \
167 // For alpha blending renderers, draw the palette index (9bpp) and
168 // layer bits rather than the raw RGB. For the base this should write to
169 // the 32bit location directly.
171 #define tile_expand_base_alpha(index) \
172 dest_ptr[index] = current_pixel | pixel_combine \
174 #define tile_expand_base_bg(index) \
175 dest_ptr[index] = bg_combine \
178 // For layered (transparent) writes this should shift the "stack" and write
179 // to the bottom. This will preserve the topmost pixel and the most recent
182 #define tile_expand_transparent_alpha(index) \
183 dest_ptr[index] = (dest_ptr[index] << 16) | current_pixel | pixel_combine \
186 // OBJ should only shift if the top isn't already OBJ
187 #define tile_expand_transparent_alpha_obj(index) \
188 dest = dest_ptr[index]; \
189 if(dest & 0x00000100) \
191 dest_ptr[index] = (dest & 0xFFFF0000) | current_pixel | pixel_combine; \
195 dest_ptr[index] = (dest << 16) | current_pixel | pixel_combine; \
199 // For color effects that don't need to preserve the previous layer.
200 // The color32 version should be used with 32bit wide dest_ptr so as to be
201 // compatible with alpha combine on top of it.
203 #define tile_expand_base_color16(index) \
204 dest_ptr[index] = current_pixel | pixel_combine \
206 #define tile_expand_transparent_color16(index) \
207 tile_expand_base_color16(index) \
209 #define tile_expand_base_color32(index) \
210 tile_expand_base_color16(index) \
212 #define tile_expand_transparent_color32(index) \
213 tile_expand_base_color16(index) \
216 // Operations for isolation 8bpp pixels within 32bpp pixel blocks.
218 #define tile_8bpp_pixel_op_mask(op_param) \
219 current_pixel = current_pixels & 0xFF \
221 #define tile_8bpp_pixel_op_shift_mask(shift) \
222 current_pixel = (current_pixels >> shift) & 0xFF \
224 #define tile_8bpp_pixel_op_shift(shift) \
225 current_pixel = current_pixels >> shift \
227 #define tile_8bpp_pixel_op_none(shift) \
229 // Base should always draw raw in 8bpp mode; color 0 will be drawn where
232 #define tile_8bpp_draw_base_normal(index) \
233 tile_expand_base_normal(index) \
235 #define tile_8bpp_draw_base_alpha(index) \
238 tile_expand_base_alpha(index); \
242 tile_expand_base_bg(index); \
246 #define tile_8bpp_draw_base_color16(index) \
247 tile_8bpp_draw_base_alpha(index) \
249 #define tile_8bpp_draw_base_color32(index) \
250 tile_8bpp_draw_base_alpha(index) \
253 #define tile_8bpp_draw_base(index, op, op_param, alpha_op) \
254 tile_8bpp_pixel_op_##op(op_param); \
255 tile_8bpp_draw_base_##alpha_op(index) \
257 // Transparent (layered) writes should only replace what is there if the
258 // pixel is not transparent (zero)
260 #define tile_8bpp_draw_transparent(index, op, op_param, alpha_op) \
261 tile_8bpp_pixel_op_##op(op_param); \
264 tile_expand_transparent_##alpha_op(index); \
267 #define tile_8bpp_draw_copy(index, op, op_param, alpha_op) \
268 tile_8bpp_pixel_op_##op(op_param); \
271 tile_expand_copy(index); \
274 // Get the current tile from the map in 8bpp mode
276 #define get_tile_8bpp() \
277 current_tile = *map_ptr; \
278 tile_ptr = tile_base + ((current_tile & 0x3FF) * 64) \
281 // Draw half of a tile in 8bpp mode, for base renderer
283 #define tile_8bpp_draw_four_noflip(index, combine_op, alpha_op) \
284 tile_8bpp_draw_##combine_op(index + 0, mask, 0, alpha_op); \
285 tile_8bpp_draw_##combine_op(index + 1, shift_mask, 8, alpha_op); \
286 tile_8bpp_draw_##combine_op(index + 2, shift_mask, 16, alpha_op); \
287 tile_8bpp_draw_##combine_op(index + 3, shift, 24, alpha_op) \
290 // Like the above, but draws the half-tile horizontally flipped
292 #define tile_8bpp_draw_four_flip(index, combine_op, alpha_op) \
293 tile_8bpp_draw_##combine_op(index + 3, mask, 0, alpha_op); \
294 tile_8bpp_draw_##combine_op(index + 2, shift_mask, 8, alpha_op); \
295 tile_8bpp_draw_##combine_op(index + 1, shift_mask, 16, alpha_op); \
296 tile_8bpp_draw_##combine_op(index + 0, shift, 24, alpha_op) \
298 #define tile_8bpp_draw_four_base(index, alpha_op, flip_op) \
299 tile_8bpp_draw_four_##flip_op(index, base, alpha_op) \
302 // Draw half of a tile in 8bpp mode, for transparent renderer; as an
303 // optimization the entire thing is checked against zero (in transparent
304 // capable renders it is more likely for the pixels to be transparent than
307 #define tile_8bpp_draw_four_transparent(index, alpha_op, flip_op) \
308 if(current_pixels != 0) \
310 tile_8bpp_draw_four_##flip_op(index, transparent, alpha_op); \
313 #define tile_8bpp_draw_four_copy(index, alpha_op, flip_op) \
314 if(current_pixels != 0) \
316 tile_8bpp_draw_four_##flip_op(index, copy, alpha_op); \
319 // Helper macro for drawing 8bpp tiles clipped against the edge of the screen
321 #define partial_tile_8bpp(combine_op, alpha_op) \
322 for(i = 0; i < partial_tile_run; i++) \
324 tile_8bpp_draw_##combine_op(0, mask, 0, alpha_op); \
325 current_pixels >>= 8; \
326 advance_dest_ptr_##combine_op(1); \
330 // Draws 8bpp tiles clipped against the left side of the screen,
331 // partial_tile_offset indicates how much clipped in it is, partial_tile_run
332 // indicates how much it should draw.
334 #define partial_tile_right_noflip_8bpp(combine_op, alpha_op) \
335 if(partial_tile_offset >= 4) \
337 current_pixels = *((u32 *)(tile_ptr + 4)) >> \
338 ((partial_tile_offset - 4) * 8); \
339 partial_tile_8bpp(combine_op, alpha_op); \
343 partial_tile_run -= 4; \
344 current_pixels = *((u32 *)tile_ptr) >> (partial_tile_offset * 8); \
345 partial_tile_8bpp(combine_op, alpha_op); \
346 current_pixels = *((u32 *)(tile_ptr + 4)); \
347 tile_8bpp_draw_four_##combine_op(0, alpha_op, noflip); \
348 advance_dest_ptr_##combine_op(4); \
352 // Draws 8bpp tiles clipped against both the left and right side of the
353 // screen, IE, runs of less than 8 - partial_tile_offset.
355 #define partial_tile_mid_noflip_8bpp(combine_op, alpha_op) \
356 if(partial_tile_offset >= 4) \
358 current_pixels = *((u32 *)(tile_ptr + 4)) >> \
359 ((partial_tile_offset - 4) * 8); \
360 partial_tile_8bpp(combine_op, alpha_op); \
364 current_pixels = *((u32 *)tile_ptr) >> (partial_tile_offset * 8); \
365 if((partial_tile_offset + partial_tile_run) > 4) \
367 u32 old_run = partial_tile_run; \
368 partial_tile_run = 4 - partial_tile_offset; \
369 partial_tile_8bpp(combine_op, alpha_op); \
370 partial_tile_run = old_run - partial_tile_run; \
371 current_pixels = *((u32 *)(tile_ptr + 4)); \
372 partial_tile_8bpp(combine_op, alpha_op); \
376 partial_tile_8bpp(combine_op, alpha_op); \
381 // Draws 8bpp tiles clipped against the right side of the screen,
382 // partial_tile_run indicates how much there is to draw.
384 #define partial_tile_left_noflip_8bpp(combine_op, alpha_op) \
385 if(partial_tile_run >= 4) \
387 current_pixels = *((u32 *)tile_ptr); \
388 tile_8bpp_draw_four_##combine_op(0, alpha_op, noflip); \
389 advance_dest_ptr_##combine_op(4); \
391 partial_tile_run -= 4; \
394 current_pixels = *((u32 *)(tile_ptr)); \
395 partial_tile_8bpp(combine_op, alpha_op) \
398 // Draws a non-clipped (complete) 8bpp tile.
400 #define tile_noflip_8bpp(combine_op, alpha_op) \
401 current_pixels = *((u32 *)tile_ptr); \
402 tile_8bpp_draw_four_##combine_op(0, alpha_op, noflip); \
403 current_pixels = *((u32 *)(tile_ptr + 4)); \
404 tile_8bpp_draw_four_##combine_op(4, alpha_op, noflip) \
407 // Like the above versions but draws flipped tiles.
409 #define partial_tile_flip_8bpp(combine_op, alpha_op) \
410 for(i = 0; i < partial_tile_run; i++) \
412 tile_8bpp_draw_##combine_op(0, shift, 24, alpha_op); \
413 current_pixels <<= 8; \
414 advance_dest_ptr_##combine_op(1); \
417 #define partial_tile_right_flip_8bpp(combine_op, alpha_op) \
418 if(partial_tile_offset >= 4) \
420 current_pixels = *((u32 *)tile_ptr) << ((partial_tile_offset - 4) * 8); \
421 partial_tile_flip_8bpp(combine_op, alpha_op); \
425 partial_tile_run -= 4; \
426 current_pixels = *((u32 *)(tile_ptr + 4)) << \
427 ((partial_tile_offset - 4) * 8); \
428 partial_tile_flip_8bpp(combine_op, alpha_op); \
429 current_pixels = *((u32 *)tile_ptr); \
430 tile_8bpp_draw_four_##combine_op(0, alpha_op, flip); \
431 advance_dest_ptr_##combine_op(4); \
434 #define partial_tile_mid_flip_8bpp(combine_op, alpha_op) \
435 if(partial_tile_offset >= 4) \
437 current_pixels = *((u32 *)tile_ptr) << ((partial_tile_offset - 4) * 8); \
438 partial_tile_flip_8bpp(combine_op, alpha_op); \
442 current_pixels = *((u32 *)(tile_ptr + 4)) << \
443 ((partial_tile_offset - 4) * 8); \
445 if((partial_tile_offset + partial_tile_run) > 4) \
447 u32 old_run = partial_tile_run; \
448 partial_tile_run = 4 - partial_tile_offset; \
449 partial_tile_flip_8bpp(combine_op, alpha_op); \
450 partial_tile_run = old_run - partial_tile_run; \
451 current_pixels = *((u32 *)(tile_ptr)); \
452 partial_tile_flip_8bpp(combine_op, alpha_op); \
456 partial_tile_flip_8bpp(combine_op, alpha_op); \
460 #define partial_tile_left_flip_8bpp(combine_op, alpha_op) \
461 if(partial_tile_run >= 4) \
463 current_pixels = *((u32 *)(tile_ptr + 4)); \
464 tile_8bpp_draw_four_##combine_op(0, alpha_op, flip); \
465 advance_dest_ptr_##combine_op(4); \
467 partial_tile_run -= 4; \
470 current_pixels = *((u32 *)(tile_ptr + 4)); \
471 partial_tile_flip_8bpp(combine_op, alpha_op) \
473 #define tile_flip_8bpp(combine_op, alpha_op) \
474 current_pixels = *((u32 *)(tile_ptr + 4)); \
475 tile_8bpp_draw_four_##combine_op(0, alpha_op, flip); \
476 current_pixels = *((u32 *)tile_ptr); \
477 tile_8bpp_draw_four_##combine_op(4, alpha_op, flip) \
480 // Operations for isolating 4bpp tiles in a 32bit block
482 #define tile_4bpp_pixel_op_mask(op_param) \
483 current_pixel = current_pixels & 0x0F \
485 #define tile_4bpp_pixel_op_shift_mask(shift) \
486 current_pixel = (current_pixels >> shift) & 0x0F \
488 #define tile_4bpp_pixel_op_shift(shift) \
489 current_pixel = current_pixels >> shift \
491 #define tile_4bpp_pixel_op_none(op_param) \
493 // Draws a single 4bpp pixel as base, normal renderer; checks to see if the
494 // pixel is zero because if so the current palette should not be applied.
495 // These ifs can be replaced with a lookup table, may or may not be superior
496 // this way, should be benchmarked. The lookup table would be from 0-255
497 // identity map except for multiples of 16, which would map to 0.
499 #define tile_4bpp_draw_base_normal(index) \
502 current_pixel |= current_palette; \
503 tile_expand_base_normal(index); \
507 tile_expand_base_normal(index); \
511 #define tile_4bpp_draw_base_alpha(index) \
514 current_pixel |= current_palette; \
515 tile_expand_base_alpha(index); \
519 tile_expand_base_bg(index); \
522 #define tile_4bpp_draw_base_color16(index) \
523 tile_4bpp_draw_base_alpha(index) \
525 #define tile_4bpp_draw_base_color32(index) \
526 tile_4bpp_draw_base_alpha(index) \
529 #define tile_4bpp_draw_base(index, op, op_param, alpha_op) \
530 tile_4bpp_pixel_op_##op(op_param); \
531 tile_4bpp_draw_base_##alpha_op(index) \
534 // Draws a single 4bpp pixel as layered, if not transparent.
536 #define tile_4bpp_draw_transparent(index, op, op_param, alpha_op) \
537 tile_4bpp_pixel_op_##op(op_param); \
540 current_pixel |= current_palette; \
541 tile_expand_transparent_##alpha_op(index); \
544 #define tile_4bpp_draw_copy(index, op, op_param, alpha_op) \
545 tile_4bpp_pixel_op_##op(op_param); \
548 current_pixel |= current_palette; \
549 tile_expand_copy(index); \
553 // Draws eight background pixels in transparent mode, for alpha or normal
556 #define tile_4bpp_draw_eight_base_zero(value) \
557 dest_ptr[0] = value; \
558 dest_ptr[1] = value; \
559 dest_ptr[2] = value; \
560 dest_ptr[3] = value; \
561 dest_ptr[4] = value; \
562 dest_ptr[5] = value; \
563 dest_ptr[6] = value; \
564 dest_ptr[7] = value \
567 // Draws eight background pixels for the alpha renderer, basically color zero
568 // with the background flag high.
570 #define tile_4bpp_draw_eight_base_zero_alpha() \
571 tile_4bpp_draw_eight_base_zero(bg_combine) \
573 #define tile_4bpp_draw_eight_base_zero_color16() \
574 tile_4bpp_draw_eight_base_zero_alpha() \
576 #define tile_4bpp_draw_eight_base_zero_color32() \
577 tile_4bpp_draw_eight_base_zero_alpha() \
580 // Draws eight background pixels for the normal renderer, just a bunch of
583 #ifdef RENDER_COLOR16_NORMAL
585 #define tile_4bpp_draw_eight_base_zero_normal() \
587 tile_4bpp_draw_eight_base_zero(current_pixel) \
591 #define tile_4bpp_draw_eight_base_zero_normal() \
592 current_pixel = palette[0]; \
593 tile_4bpp_draw_eight_base_zero(current_pixel) \
598 // Draws eight 4bpp pixels.
600 #define tile_4bpp_draw_eight_noflip(combine_op, alpha_op) \
601 tile_4bpp_draw_##combine_op(0, mask, 0, alpha_op); \
602 tile_4bpp_draw_##combine_op(1, shift_mask, 4, alpha_op); \
603 tile_4bpp_draw_##combine_op(2, shift_mask, 8, alpha_op); \
604 tile_4bpp_draw_##combine_op(3, shift_mask, 12, alpha_op); \
605 tile_4bpp_draw_##combine_op(4, shift_mask, 16, alpha_op); \
606 tile_4bpp_draw_##combine_op(5, shift_mask, 20, alpha_op); \
607 tile_4bpp_draw_##combine_op(6, shift_mask, 24, alpha_op); \
608 tile_4bpp_draw_##combine_op(7, shift, 28, alpha_op) \
611 // Draws eight 4bpp pixels in reverse order (for hflip).
613 #define tile_4bpp_draw_eight_flip(combine_op, alpha_op) \
614 tile_4bpp_draw_##combine_op(7, mask, 0, alpha_op); \
615 tile_4bpp_draw_##combine_op(6, shift_mask, 4, alpha_op); \
616 tile_4bpp_draw_##combine_op(5, shift_mask, 8, alpha_op); \
617 tile_4bpp_draw_##combine_op(4, shift_mask, 12, alpha_op); \
618 tile_4bpp_draw_##combine_op(3, shift_mask, 16, alpha_op); \
619 tile_4bpp_draw_##combine_op(2, shift_mask, 20, alpha_op); \
620 tile_4bpp_draw_##combine_op(1, shift_mask, 24, alpha_op); \
621 tile_4bpp_draw_##combine_op(0, shift, 28, alpha_op) \
624 // Draws eight 4bpp pixels in base mode, checks if all are zero, if so draws
625 // the appropriate background pixels.
627 #define tile_4bpp_draw_eight_base(alpha_op, flip_op) \
628 if(current_pixels != 0) \
630 tile_4bpp_draw_eight_##flip_op(base, alpha_op); \
634 tile_4bpp_draw_eight_base_zero_##alpha_op(); \
638 // Draws eight 4bpp pixels in transparent (layered) mode, checks if all are
639 // zero and if so draws nothing.
641 #define tile_4bpp_draw_eight_transparent(alpha_op, flip_op) \
642 if(current_pixels != 0) \
644 tile_4bpp_draw_eight_##flip_op(transparent, alpha_op); \
648 #define tile_4bpp_draw_eight_copy(alpha_op, flip_op) \
649 if(current_pixels != 0) \
651 tile_4bpp_draw_eight_##flip_op(copy, alpha_op); \
654 // Gets the current tile in 4bpp mode, also getting the current palette and
657 #define get_tile_4bpp() \
658 current_tile = *map_ptr; \
659 current_palette = (current_tile >> 12) << 4; \
660 tile_ptr = tile_base + ((current_tile & 0x3FF) * 32); \
663 // Helper macro for drawing clipped 4bpp tiles.
665 #define partial_tile_4bpp(combine_op, alpha_op) \
666 for(i = 0; i < partial_tile_run; i++) \
668 tile_4bpp_draw_##combine_op(0, mask, 0, alpha_op); \
669 current_pixels >>= 4; \
670 advance_dest_ptr_##combine_op(1); \
674 // Draws a 4bpp tile clipped against the left edge of the screen.
675 // partial_tile_offset is how far in it's clipped, partial_tile_run is
678 #define partial_tile_right_noflip_4bpp(combine_op, alpha_op) \
679 current_pixels = *((u32 *)tile_ptr) >> (partial_tile_offset * 4); \
680 partial_tile_4bpp(combine_op, alpha_op) \
683 // Draws a 4bpp tile clipped against both edges of the screen, same as right.
685 #define partial_tile_mid_noflip_4bpp(combine_op, alpha_op) \
686 partial_tile_right_noflip_4bpp(combine_op, alpha_op) \
689 // Draws a 4bpp tile clipped against the right edge of the screen.
690 // partial_tile_offset is how many to draw.
692 #define partial_tile_left_noflip_4bpp(combine_op, alpha_op) \
693 current_pixels = *((u32 *)tile_ptr); \
694 partial_tile_4bpp(combine_op, alpha_op) \
697 // Draws a complete 4bpp tile row (not clipped)
698 #define tile_noflip_4bpp(combine_op, alpha_op) \
699 current_pixels = *((u32 *)tile_ptr); \
700 tile_4bpp_draw_eight_##combine_op(alpha_op, noflip) \
703 // Like the above, but draws flipped tiles.
705 #define partial_tile_flip_4bpp(combine_op, alpha_op) \
706 for(i = 0; i < partial_tile_run; i++) \
708 tile_4bpp_draw_##combine_op(0, shift, 28, alpha_op); \
709 current_pixels <<= 4; \
710 advance_dest_ptr_##combine_op(1); \
713 #define partial_tile_right_flip_4bpp(combine_op, alpha_op) \
714 current_pixels = *((u32 *)tile_ptr) << (partial_tile_offset * 4); \
715 partial_tile_flip_4bpp(combine_op, alpha_op) \
717 #define partial_tile_mid_flip_4bpp(combine_op, alpha_op) \
718 partial_tile_right_flip_4bpp(combine_op, alpha_op) \
720 #define partial_tile_left_flip_4bpp(combine_op, alpha_op) \
721 current_pixels = *((u32 *)tile_ptr); \
722 partial_tile_flip_4bpp(combine_op, alpha_op) \
724 #define tile_flip_4bpp(combine_op, alpha_op) \
725 current_pixels = *((u32 *)tile_ptr); \
726 tile_4bpp_draw_eight_##combine_op(alpha_op, flip) \
729 // Draws a single (partial or complete) tile from the tilemap, flipping
732 #define single_tile_map(tile_type, combine_op, color_depth, alpha_op) \
733 get_tile_##color_depth(); \
734 if(current_tile & 0x800) \
735 tile_ptr += vertical_pixel_flip; \
737 if(current_tile & 0x400) \
739 tile_type##_flip_##color_depth(combine_op, alpha_op); \
743 tile_type##_noflip_##color_depth(combine_op, alpha_op); \
747 // Draws multiple sequential tiles from the tilemap, hflips and vflips as
750 #define multiple_tile_map(combine_op, color_depth, alpha_op) \
751 for(i = 0; i < tile_run; i++) \
753 single_tile_map(tile, combine_op, color_depth, alpha_op); \
754 advance_dest_ptr_##combine_op(8); \
758 // Draws a partial tile from a tilemap clipped against the left edge of the
761 #define partial_tile_right_map(combine_op, color_depth, alpha_op) \
762 single_tile_map(partial_tile_right, combine_op, color_depth, alpha_op); \
765 // Draws a partial tile from a tilemap clipped against both edges of the
768 #define partial_tile_mid_map(combine_op, color_depth, alpha_op) \
769 single_tile_map(partial_tile_mid, combine_op, color_depth, alpha_op) \
771 // Draws a partial tile from a tilemap clipped against the right edge of the
774 #define partial_tile_left_map(combine_op, color_depth, alpha_op) \
775 single_tile_map(partial_tile_left, combine_op, color_depth, alpha_op) \
778 // Advances a non-flipped 4bpp obj to the next tile.
780 #define obj_advance_noflip_4bpp() \
784 // Advances a non-flipped 8bpp obj to the next tile.
786 #define obj_advance_noflip_8bpp() \
790 // Advances a flipped 4bpp obj to the next tile.
792 #define obj_advance_flip_4bpp() \
796 // Advances a flipped 8bpp obj to the next tile.
798 #define obj_advance_flip_8bpp() \
803 // Draws multiple sequential tiles from an obj, flip_op determines if it should
804 // be flipped or not (set to flip or noflip)
806 #define multiple_tile_obj(combine_op, color_depth, alpha_op, flip_op) \
807 for(i = 0; i < tile_run; i++) \
809 tile_##flip_op##_##color_depth(combine_op, alpha_op); \
810 obj_advance_##flip_op##_##color_depth(); \
811 advance_dest_ptr_##combine_op(8); \
815 // Draws an obj's tile clipped against the left side of the screen
817 #define partial_tile_right_obj(combine_op, color_depth, alpha_op, flip_op) \
818 partial_tile_right_##flip_op##_##color_depth(combine_op, alpha_op); \
819 obj_advance_##flip_op##_##color_depth() \
821 // Draws an obj's tile clipped against both sides of the screen
823 #define partial_tile_mid_obj(combine_op, color_depth, alpha_op, flip_op) \
824 partial_tile_mid_##flip_op##_##color_depth(combine_op, alpha_op) \
826 // Draws an obj's tile clipped against the right side of the screen
828 #define partial_tile_left_obj(combine_op, color_depth, alpha_op, flip_op) \
829 partial_tile_left_##flip_op##_##color_depth(combine_op, alpha_op) \
832 // Extra variables specific for 8bpp/4bpp tile renderers.
834 #define tile_extra_variables_8bpp() \
836 #define tile_extra_variables_4bpp() \
837 u32 current_palette \
840 // Byte lengths of complete tiles and tile rows in 4bpp and 8bpp.
842 #define tile_width_4bpp 4
843 #define tile_size_4bpp 32
844 #define tile_width_8bpp 8
845 #define tile_size_8bpp 64
848 // Render a single scanline of text tiles
850 #define tile_render(color_depth, combine_op, alpha_op) \
852 u32 vertical_pixel_offset = (vertical_offset % 8) * \
853 tile_width_##color_depth; \
854 u32 vertical_pixel_flip = \
855 ((tile_size_##color_depth - tile_width_##color_depth) - \
856 vertical_pixel_offset) - vertical_pixel_offset; \
857 tile_extra_variables_##color_depth(); \
858 u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) + \
859 vertical_pixel_offset; \
860 u32 pixel_run = 256 - (horizontal_offset % 256); \
863 map_base += ((vertical_offset % 256) / 8) * 32; \
864 partial_tile_offset = (horizontal_offset % 8); \
866 if(pixel_run >= end) \
868 if(partial_tile_offset) \
870 partial_tile_run = 8 - partial_tile_offset; \
871 if(end < partial_tile_run) \
873 partial_tile_run = end; \
874 partial_tile_mid_map(combine_op, color_depth, alpha_op); \
879 end -= partial_tile_run; \
880 partial_tile_right_map(combine_op, color_depth, alpha_op); \
884 tile_run = end / 8; \
885 multiple_tile_map(combine_op, color_depth, alpha_op); \
887 partial_tile_run = end % 8; \
889 if(partial_tile_run) \
891 partial_tile_left_map(combine_op, color_depth, alpha_op); \
896 if(partial_tile_offset) \
898 partial_tile_run = 8 - partial_tile_offset; \
899 partial_tile_right_map(combine_op, color_depth, alpha_op); \
902 tile_run = (pixel_run - partial_tile_run) / 8; \
903 multiple_tile_map(combine_op, color_depth, alpha_op); \
904 map_ptr = second_ptr; \
906 tile_run = end / 8; \
907 multiple_tile_map(combine_op, color_depth, alpha_op); \
909 partial_tile_run = end % 8; \
910 if(partial_tile_run) \
912 partial_tile_left_map(combine_op, color_depth, alpha_op); \
917 #define render_scanline_dest_normal u16
918 #define render_scanline_dest_alpha u32
919 #define render_scanline_dest_alpha_obj u32
920 #define render_scanline_dest_color16 u16
921 #define render_scanline_dest_color32 u32
922 #define render_scanline_dest_partial_alpha u32
923 #define render_scanline_dest_copy_tile u16
924 #define render_scanline_dest_copy_bitmap u16
927 // If rendering a scanline that is not a target A then there's no point in
928 // keeping what's underneath it because it can't blend with it.
930 #define render_scanline_skip_alpha(bg_type, combine_op) \
931 if((pixel_combine & 0x00000200) == 0) \
933 render_scanline_##bg_type##_##combine_op##_color32(layer, \
934 start, end, scanline); \
939 #ifdef RENDER_COLOR16_NORMAL
941 #define render_scanline_extra_variables_base_normal(bg_type) \
942 const u32 pixel_combine = 0 \
946 #define render_scanline_extra_variables_base_normal(bg_type) \
947 u16 *palette = palette_ram_converted \
952 #define render_scanline_extra_variables_base_alpha(bg_type) \
953 u32 bg_combine = color_combine_mask(5); \
954 u32 pixel_combine = color_combine_mask(layer) | (bg_combine << 16); \
955 render_scanline_skip_alpha(bg_type, base) \
957 #define render_scanline_extra_variables_base_color() \
958 u32 bg_combine = color_combine_mask(5); \
959 u32 pixel_combine = color_combine_mask(layer) \
961 #define render_scanline_extra_variables_base_color16(bg_type) \
962 render_scanline_extra_variables_base_color() \
964 #define render_scanline_extra_variables_base_color32(bg_type) \
965 render_scanline_extra_variables_base_color() \
968 #define render_scanline_extra_variables_transparent_normal(bg_type) \
969 render_scanline_extra_variables_base_normal(bg_type) \
971 #define render_scanline_extra_variables_transparent_alpha(bg_type) \
972 u32 pixel_combine = color_combine_mask(layer); \
973 render_scanline_skip_alpha(bg_type, transparent) \
975 #define render_scanline_extra_variables_transparent_color() \
976 u32 pixel_combine = color_combine_mask(layer) \
978 #define render_scanline_extra_variables_transparent_color16(bg_type) \
979 render_scanline_extra_variables_transparent_color() \
981 #define render_scanline_extra_variables_transparent_color32(bg_type) \
982 render_scanline_extra_variables_transparent_color() \
988 // Map widths and heights
990 u32 map_widths[] = { 256, 512, 256, 512 };
991 u32 map_heights[] = { 256, 256, 512, 512 };
993 // Build text scanline rendering functions.
995 #define render_scanline_text_builder(combine_op, alpha_op) \
996 void render_scanline_text_##combine_op##_##alpha_op(u32 layer, \
997 u32 start, u32 end, void *scanline) \
999 render_scanline_extra_variables_##combine_op##_##alpha_op(text); \
1000 u32 bg_control = io_registers[REG_BG0CNT + layer]; \
1001 u32 map_size = (bg_control >> 14) & 0x03; \
1002 u32 map_width = map_widths[map_size]; \
1003 u32 map_height = map_heights[map_size]; \
1004 u32 horizontal_offset = \
1005 (io_registers[REG_BG0HOFS + (layer * 2)] + start) % 512; \
1006 u32 vertical_offset = (io_registers[REG_VCOUNT] + \
1007 io_registers[REG_BG0VOFS + (layer * 2)]) % 512; \
1008 u32 current_pixel; \
1009 u32 current_pixels; \
1010 u32 partial_tile_run = 0; \
1011 u32 partial_tile_offset; \
1014 render_scanline_dest_##alpha_op *dest_ptr = \
1015 ((render_scanline_dest_##alpha_op *)scanline) + start; \
1017 u16 *map_base = (u16 *)(vram + ((bg_control >> 8) & 0x1F) * (1024 * 2)); \
1018 u16 *map_ptr, *second_ptr; \
1023 if((map_size & 0x02) && (vertical_offset >= 256)) \
1025 map_base += ((map_width / 8) * 32) + \
1026 (((vertical_offset - 256) / 8) * 32); \
1030 map_base += (((vertical_offset % 256) / 8) * 32); \
1033 if(map_size & 0x01) \
1035 if(horizontal_offset >= 256) \
1037 horizontal_offset -= 256; \
1038 map_ptr = map_base + (32 * 32) + (horizontal_offset / 8); \
1039 second_ptr = map_base; \
1043 map_ptr = map_base + (horizontal_offset / 8); \
1044 second_ptr = map_base + (32 * 32); \
1049 horizontal_offset %= 256; \
1050 map_ptr = map_base + (horizontal_offset / 8); \
1051 second_ptr = map_base; \
1054 if(bg_control & 0x80) \
1056 tile_render(8bpp, combine_op, alpha_op); \
1060 tile_render(4bpp, combine_op, alpha_op); \
1064 render_scanline_text_builder(base, normal);
1065 render_scanline_text_builder(transparent, normal);
1066 render_scanline_text_builder(base, color16);
1067 render_scanline_text_builder(transparent, color16);
1068 render_scanline_text_builder(base, color32);
1069 render_scanline_text_builder(transparent, color32);
1070 render_scanline_text_builder(base, alpha);
1071 render_scanline_text_builder(transparent, alpha);
1074 s32 affine_reference_x[2];
1075 s32 affine_reference_y[2];
1077 #define affine_render_bg_pixel_normal() \
1078 current_pixel = palette_ram_converted[0] \
1080 #define affine_render_bg_pixel_alpha() \
1081 current_pixel = bg_combine \
1083 #define affine_render_bg_pixel_color16() \
1084 affine_render_bg_pixel_alpha() \
1086 #define affine_render_bg_pixel_color32() \
1087 affine_render_bg_pixel_alpha() \
1089 #define affine_render_bg_pixel_base(alpha_op) \
1090 affine_render_bg_pixel_##alpha_op() \
1092 #define affine_render_bg_pixel_transparent(alpha_op) \
1094 #define affine_render_bg_pixel_copy(alpha_op) \
1096 #define affine_render_bg_base(alpha_op) \
1097 dest_ptr[0] = current_pixel
1099 #define affine_render_bg_transparent(alpha_op) \
1101 #define affine_render_bg_copy(alpha_op) \
1103 #define affine_render_bg_remainder_base(alpha_op) \
1104 affine_render_bg_pixel_##alpha_op(); \
1105 for(; i < end; i++) \
1107 affine_render_bg_base(alpha_op); \
1108 advance_dest_ptr_base(1); \
1111 #define affine_render_bg_remainder_transparent(alpha_op) \
1113 #define affine_render_bg_remainder_copy(alpha_op) \
1115 #define affine_render_next(combine_op) \
1118 advance_dest_ptr_##combine_op(1) \
1120 #define affine_render_scale_offset() \
1121 tile_base += ((pixel_y % 8) * 8); \
1122 map_base += (pixel_y / 8) << map_pitch \
1124 #define affine_render_scale_pixel(combine_op, alpha_op) \
1125 map_offset = (pixel_x / 8); \
1126 if(map_offset != last_map_offset) \
1128 tile_ptr = tile_base + (map_base[map_offset] * 64); \
1129 last_map_offset = map_offset; \
1131 tile_ptr = tile_base + (map_base[(pixel_x / 8)] * 64); \
1132 current_pixel = tile_ptr[(pixel_x % 8)]; \
1133 tile_8bpp_draw_##combine_op(0, none, 0, alpha_op); \
1134 affine_render_next(combine_op) \
1136 #define affine_render_scale(combine_op, alpha_op) \
1138 pixel_y = source_y >> 8; \
1140 affine_render_bg_pixel_##combine_op(alpha_op); \
1141 if((u32)pixel_y < (u32)width_height) \
1143 affine_render_scale_offset(); \
1144 for(; i < end; i++) \
1146 pixel_x = source_x >> 8; \
1148 if((u32)pixel_x < (u32)width_height) \
1153 affine_render_bg_##combine_op(alpha_op); \
1154 affine_render_next(combine_op); \
1157 for(; i < end; i++) \
1159 pixel_x = source_x >> 8; \
1161 if((u32)pixel_x >= (u32)width_height) \
1164 affine_render_scale_pixel(combine_op, alpha_op); \
1167 affine_render_bg_remainder_##combine_op(alpha_op); \
1170 #define affine_render_scale_wrap(combine_op, alpha_op) \
1172 u32 wrap_mask = width_height - 1; \
1173 pixel_y = (source_y >> 8) & wrap_mask; \
1174 if((u32)pixel_y < (u32)width_height) \
1176 affine_render_scale_offset(); \
1177 for(i = 0; i < end; i++) \
1179 pixel_x = (source_x >> 8) & wrap_mask; \
1180 affine_render_scale_pixel(combine_op, alpha_op); \
1186 #define affine_render_rotate_pixel(combine_op, alpha_op) \
1187 map_offset = (pixel_x / 8) + ((pixel_y / 8) << map_pitch); \
1188 if(map_offset != last_map_offset) \
1190 tile_ptr = tile_base + (map_base[map_offset] * 64); \
1191 last_map_offset = map_offset; \
1194 current_pixel = tile_ptr[(pixel_x % 8) + ((pixel_y % 8) * 8)]; \
1195 tile_8bpp_draw_##combine_op(0, none, 0, alpha_op); \
1196 affine_render_next(combine_op) \
1198 #define affine_render_rotate(combine_op, alpha_op) \
1200 affine_render_bg_pixel_##combine_op(alpha_op); \
1201 for(i = 0; i < end; i++) \
1203 pixel_x = source_x >> 8; \
1204 pixel_y = source_y >> 8; \
1206 if(((u32)pixel_x < (u32)width_height) && \
1207 ((u32)pixel_y < (u32)width_height)) \
1211 affine_render_bg_##combine_op(alpha_op); \
1212 affine_render_next(combine_op); \
1215 for(; i < end; i++) \
1217 pixel_x = source_x >> 8; \
1218 pixel_y = source_y >> 8; \
1220 if(((u32)pixel_x >= (u32)width_height) || \
1221 ((u32)pixel_y >= (u32)width_height)) \
1223 affine_render_bg_remainder_##combine_op(alpha_op); \
1227 affine_render_rotate_pixel(combine_op, alpha_op); \
1231 #define affine_render_rotate_wrap(combine_op, alpha_op) \
1233 u32 wrap_mask = width_height - 1; \
1234 for(i = 0; i < end; i++) \
1236 pixel_x = (source_x >> 8) & wrap_mask; \
1237 pixel_y = (source_y >> 8) & wrap_mask; \
1239 affine_render_rotate_pixel(combine_op, alpha_op); \
1244 // Build affine background renderers.
1246 #define render_scanline_affine_builder(combine_op, alpha_op) \
1247 void render_scanline_affine_##combine_op##_##alpha_op(u32 layer, \
1248 u32 start, u32 end, void *scanline) \
1250 render_scanline_extra_variables_##combine_op##_##alpha_op(affine); \
1251 u32 bg_control = io_registers[REG_BG0CNT + layer]; \
1252 u32 current_pixel; \
1253 s32 source_x, source_y; \
1254 u32 vcount = io_registers[REG_VCOUNT]; \
1255 u32 pixel_x, pixel_y; \
1256 u32 layer_offset = (layer - 2) * 8; \
1258 u32 map_size = (bg_control >> 14) & 0x03; \
1259 u32 width_height = 1 << (7 + map_size); \
1260 u32 map_pitch = map_size + 4; \
1261 u8 *map_base = vram + (((bg_control >> 8) & 0x1F) * (1024 * 2)); \
1262 u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)); \
1264 u32 map_offset, last_map_offset = (u32)-1; \
1266 render_scanline_dest_##alpha_op *dest_ptr = \
1267 ((render_scanline_dest_##alpha_op *)scanline) + start; \
1269 dx = (s16)io_registers[REG_BG2PA + layer_offset]; \
1270 dy = (s16)io_registers[REG_BG2PC + layer_offset]; \
1271 source_x = affine_reference_x[layer - 2] + (start * dx); \
1272 source_y = affine_reference_y[layer - 2] + (start * dy); \
1276 switch(((bg_control >> 12) & 0x02) | (dy != 0)) \
1279 affine_render_scale(combine_op, alpha_op); \
1283 affine_render_rotate(combine_op, alpha_op); \
1287 affine_render_scale_wrap(combine_op, alpha_op); \
1291 affine_render_rotate_wrap(combine_op, alpha_op); \
1296 render_scanline_affine_builder(base, normal);
1297 render_scanline_affine_builder(transparent, normal);
1298 render_scanline_affine_builder(base, color16);
1299 render_scanline_affine_builder(transparent, color16);
1300 render_scanline_affine_builder(base, color32);
1301 render_scanline_affine_builder(transparent, color32);
1302 render_scanline_affine_builder(base, alpha);
1303 render_scanline_affine_builder(transparent, alpha);
1306 #define bitmap_render_pixel_mode3(alpha_op) \
1307 convert_palette(current_pixel); \
1308 *dest_ptr = current_pixel \
1310 #define bitmap_render_pixel_mode4(alpha_op) \
1311 tile_expand_base_##alpha_op(0) \
1313 #define bitmap_render_pixel_mode5(alpha_op) \
1314 bitmap_render_pixel_mode3(alpha_op) \
1317 #define bitmap_render_scale(type, alpha_op, width, height) \
1318 pixel_y = (source_y >> 8); \
1319 if((u32)pixel_y < (u32)height) \
1321 pixel_x = (source_x >> 8); \
1322 src_ptr += (pixel_y * width); \
1328 dest_ptr -= pixel_x; \
1335 src_ptr += pixel_x; \
1338 if((pixel_x + end) >= width) \
1339 end = (width - pixel_x); \
1341 for(i = 0; (s32)i < (s32)end; i++) \
1343 current_pixel = *src_ptr; \
1344 bitmap_render_pixel_##type(alpha_op); \
1351 if((u32)(source_y >> 8) < (u32)height) \
1353 for(i = 0; i < end; i++) \
1355 pixel_x = (source_x >> 8); \
1357 if((u32)pixel_x < (u32)width) \
1364 for(; i < end; i++) \
1366 pixel_x = (source_x >> 8); \
1368 if((u32)pixel_x >= (u32)width) \
1371 current_pixel = src_ptr[pixel_x]; \
1372 bitmap_render_pixel_##type(alpha_op); \
1381 #define bitmap_render_rotate(type, alpha_op, width, height) \
1382 for(i = 0; i < end; i++) \
1384 pixel_x = source_x >> 8; \
1385 pixel_y = source_y >> 8; \
1387 if(((u32)pixel_x < (u32)width) && ((u32)pixel_y < (u32)height)) \
1395 for(; i < end; i++) \
1397 pixel_x = (source_x >> 8); \
1398 pixel_y = (source_y >> 8); \
1400 if(((u32)pixel_x >= (u32)width) || ((u32)pixel_y >= (u32)height)) \
1403 current_pixel = src_ptr[pixel_x + (pixel_y * width)]; \
1404 bitmap_render_pixel_##type(alpha_op); \
1412 #define render_scanline_vram_setup_mode3() \
1413 u16 *src_ptr = (u16 *)vram \
1415 #define render_scanline_vram_setup_mode5() \
1417 if(io_registers[REG_DISPCNT] & 0x10) \
1418 src_ptr = (u16 *)(vram + 0xA000); \
1420 src_ptr = (u16 *)vram \
1423 #ifdef RENDER_COLOR16_NORMAL
1425 #define render_scanline_vram_setup_mode4() \
1426 const u32 pixel_combine = 0; \
1428 if(io_registers[REG_DISPCNT] & 0x10) \
1429 src_ptr = vram + 0xA000; \
1436 #define render_scanline_vram_setup_mode4() \
1437 u16 *palette = palette_ram_converted; \
1439 if(io_registers[REG_DISPCNT] & 0x10) \
1440 src_ptr = vram + 0xA000; \
1448 // Build bitmap scanline rendering functions.
1450 #define render_scanline_bitmap_builder(type, alpha_op, width, height) \
1451 void render_scanline_bitmap_##type##_##alpha_op(u32 start, u32 end, \
1454 u32 bg_control = io_registers[REG_BG2CNT]; \
1455 u32 current_pixel; \
1456 s32 source_x, source_y; \
1457 u32 vcount = io_registers[REG_VCOUNT]; \
1458 s32 pixel_x, pixel_y; \
1460 s32 dx = (s16)io_registers[REG_BG2PA]; \
1461 s32 dy = (s16)io_registers[REG_BG2PC]; \
1465 render_scanline_dest_##alpha_op *dest_ptr = \
1466 ((render_scanline_dest_##alpha_op *)scanline) + start; \
1467 render_scanline_vram_setup_##type(); \
1471 source_x = affine_reference_x[0] + (start * dx); \
1472 source_y = affine_reference_y[0] + (start * dy); \
1476 bitmap_render_scale(type, alpha_op, width, height); \
1480 bitmap_render_rotate(type, alpha_op, width, height); \
1484 render_scanline_bitmap_builder(mode3, normal, 240, 160);
1485 render_scanline_bitmap_builder(mode4, normal, 240, 160);
1486 render_scanline_bitmap_builder(mode5, normal, 160, 128);
1489 // Fill in the renderers for a layer based on the mode type,
1491 #define tile_layer_render_functions(type) \
1493 render_scanline_##type##_base_normal, \
1494 render_scanline_##type##_transparent_normal, \
1495 render_scanline_##type##_base_alpha, \
1496 render_scanline_##type##_transparent_alpha, \
1497 render_scanline_##type##_base_color16, \
1498 render_scanline_##type##_transparent_color16, \
1499 render_scanline_##type##_base_color32, \
1500 render_scanline_##type##_transparent_color32 \
1504 // Use if a layer is unsupported for that mode.
1506 #define tile_layer_render_null() \
1508 NULL, NULL, NULL, NULL \
1511 #define bitmap_layer_render_functions(type) \
1513 render_scanline_bitmap_##type##_normal \
1516 // Structs containing functions to render the layers for each mode, for
1517 // each render type.
1518 tile_layer_render_struct tile_mode_renderers[3][4] =
1521 tile_layer_render_functions(text), tile_layer_render_functions(text),
1522 tile_layer_render_functions(text), tile_layer_render_functions(text)
1525 tile_layer_render_functions(text), tile_layer_render_functions(text),
1526 tile_layer_render_functions(affine), tile_layer_render_functions(text)
1529 tile_layer_render_functions(text), tile_layer_render_functions(text),
1530 tile_layer_render_functions(affine), tile_layer_render_functions(affine)
1534 bitmap_layer_render_struct bitmap_mode_renderers[3] =
1536 bitmap_layer_render_functions(mode3),
1537 bitmap_layer_render_functions(mode4),
1538 bitmap_layer_render_functions(mode5)
1542 #define render_scanline_layer_functions_tile() \
1543 tile_layer_render_struct *layer_renderers = \
1544 tile_mode_renderers[dispcnt & 0x07] \
1546 #define render_scanline_layer_functions_bitmap() \
1547 bitmap_layer_render_struct *layer_renderers = \
1548 bitmap_mode_renderers + ((dispcnt & 0x07) - 3) \
1551 // Adjust a flipped obj's starting position
1553 #define obj_tile_offset_noflip(color_depth) \
1555 #define obj_tile_offset_flip(color_depth) \
1556 + (tile_size_##color_depth * ((obj_width - 8) / 8)) \
1559 // Adjust the obj's starting point if it goes too far off the left edge of \
1562 #define obj_tile_right_offset_noflip(color_depth) \
1563 tile_ptr += (partial_tile_offset / 8) * tile_size_##color_depth \
1565 #define obj_tile_right_offset_flip(color_depth) \
1566 tile_ptr -= (partial_tile_offset / 8) * tile_size_##color_depth \
1568 // Get the current row offset into an obj in 1D map space
1570 #define obj_tile_offset_1D(color_depth, flip_op) \
1571 tile_ptr = tile_base + ((obj_attribute_2 & 0x3FF) * 32) \
1572 + ((vertical_offset / 8) * (obj_width / 8) * tile_size_##color_depth) \
1573 + ((vertical_offset % 8) * tile_width_##color_depth) \
1574 obj_tile_offset_##flip_op(color_depth) \
1576 // Get the current row offset into an obj in 2D map space
1578 #define obj_tile_offset_2D(color_depth, flip_op) \
1579 tile_ptr = tile_base + ((obj_attribute_2 & 0x3FF) * 32) \
1580 + ((vertical_offset / 8) * 1024) \
1581 + ((vertical_offset % 8) * tile_width_##color_depth) \
1582 obj_tile_offset_##flip_op(color_depth) \
1585 // Get the palette for 4bpp obj.
1587 #define obj_get_palette_4bpp() \
1588 current_palette = (obj_attribute_2 >> 8) & 0xF0 \
1590 #define obj_get_palette_8bpp() \
1593 // Render the current row of an obj.
1595 #define obj_render(combine_op, color_depth, alpha_op, map_space, flip_op) \
1597 obj_get_palette_##color_depth(); \
1598 obj_tile_offset_##map_space(color_depth, flip_op); \
1600 if(obj_x < (s32)start) \
1602 dest_ptr = scanline + start; \
1603 pixel_run = obj_width - (start - obj_x); \
1604 if((s32)pixel_run > 0) \
1606 if((obj_x + obj_width) >= end) \
1608 pixel_run = end - start; \
1609 partial_tile_offset = start - obj_x; \
1610 obj_tile_right_offset_##flip_op(color_depth); \
1611 partial_tile_offset %= 8; \
1613 if(partial_tile_offset) \
1615 partial_tile_run = 8 - partial_tile_offset; \
1616 if((s32)pixel_run < (s32)partial_tile_run) \
1618 if((s32)pixel_run > 0) \
1620 partial_tile_run = pixel_run; \
1621 partial_tile_mid_obj(combine_op, color_depth, alpha_op, \
1628 pixel_run -= partial_tile_run; \
1629 partial_tile_right_obj(combine_op, color_depth, alpha_op, \
1633 tile_run = pixel_run / 8; \
1634 multiple_tile_obj(combine_op, color_depth, alpha_op, flip_op); \
1635 partial_tile_run = pixel_run % 8; \
1636 if(partial_tile_run) \
1638 partial_tile_left_obj(combine_op, color_depth, alpha_op, \
1644 partial_tile_offset = start - obj_x; \
1645 obj_tile_right_offset_##flip_op(color_depth); \
1646 partial_tile_offset %= 8; \
1647 if(partial_tile_offset) \
1649 partial_tile_run = 8 - partial_tile_offset; \
1650 partial_tile_right_obj(combine_op, color_depth, alpha_op, \
1653 tile_run = pixel_run / 8; \
1654 multiple_tile_obj(combine_op, color_depth, alpha_op, flip_op); \
1660 if((obj_x + obj_width) >= end) \
1662 pixel_run = end - obj_x; \
1663 if((s32)pixel_run > 0) \
1665 dest_ptr = scanline + obj_x; \
1666 tile_run = pixel_run / 8; \
1667 multiple_tile_obj(combine_op, color_depth, alpha_op, flip_op); \
1668 partial_tile_run = pixel_run % 8; \
1669 if(partial_tile_run) \
1671 partial_tile_left_obj(combine_op, color_depth, alpha_op, flip_op); \
1677 dest_ptr = scanline + obj_x; \
1678 tile_run = obj_width / 8; \
1679 multiple_tile_obj(combine_op, color_depth, alpha_op, flip_op); \
1683 #define obj_scale_offset_1D(color_depth) \
1684 tile_ptr = tile_base + ((obj_attribute_2 & 0x3FF) * 32) \
1685 + ((vertical_offset / 8) * (max_x / 8) * tile_size_##color_depth) \
1686 + ((vertical_offset % 8) * tile_width_##color_depth) \
1688 // Get the current row offset into an obj in 2D map space
1690 #define obj_scale_offset_2D(color_depth) \
1691 tile_ptr = tile_base + ((obj_attribute_2 & 0x3FF) * 32) \
1692 + ((vertical_offset / 8) * 1024) \
1693 + ((vertical_offset % 8) * tile_width_##color_depth) \
1695 #define obj_render_scale_pixel_4bpp(combine_op, alpha_op) \
1698 current_pixel = tile_ptr[tile_map_offset + ((tile_x >> 1) & 0x03)] >> 4; \
1703 tile_ptr[tile_map_offset + ((tile_x >> 1) & 0x03)] & 0x0F; \
1706 tile_4bpp_draw_##combine_op(0, none, 0, alpha_op) \
1709 #define obj_render_scale_pixel_8bpp(combine_op, alpha_op) \
1710 current_pixel = tile_ptr[tile_map_offset + (tile_x & 0x07)]; \
1711 tile_8bpp_draw_##combine_op(0, none, 0, alpha_op); \
1713 #define obj_render_scale(combine_op, color_depth, alpha_op, map_space) \
1715 u32 vertical_offset; \
1716 source_y += (y_delta * dmy); \
1717 vertical_offset = (source_y >> 8); \
1718 if((u32)vertical_offset < (u32)max_y) \
1720 obj_scale_offset_##map_space(color_depth); \
1721 source_x += (y_delta * dmx) - (middle_x * dx); \
1723 for(i = 0; i < obj_width; i++) \
1725 tile_x = (source_x >> 8); \
1727 if((u32)tile_x < (u32)max_x) \
1731 advance_dest_ptr_##combine_op(1); \
1734 for(; i < obj_width; i++) \
1736 tile_x = (source_x >> 8); \
1738 if((u32)tile_x >= (u32)max_x) \
1741 tile_map_offset = (tile_x >> 3) * tile_size_##color_depth; \
1742 obj_render_scale_pixel_##color_depth(combine_op, alpha_op); \
1745 advance_dest_ptr_##combine_op(1); \
1751 #define obj_rotate_offset_1D(color_depth) \
1752 obj_tile_pitch = (max_x / 8) * tile_size_##color_depth \
1754 #define obj_rotate_offset_2D(color_depth) \
1755 obj_tile_pitch = 1024 \
1757 #define obj_render_rotate_pixel_4bpp(combine_op, alpha_op) \
1760 current_pixel = tile_ptr[tile_map_offset + \
1761 ((tile_x >> 1) & 0x03) + ((tile_y & 0x07) * obj_pitch)] >> 4; \
1765 current_pixel = tile_ptr[tile_map_offset + \
1766 ((tile_x >> 1) & 0x03) + ((tile_y & 0x07) * obj_pitch)] & 0x0F; \
1769 tile_4bpp_draw_##combine_op(0, none, 0, alpha_op) \
1771 #define obj_render_rotate_pixel_8bpp(combine_op, alpha_op) \
1772 current_pixel = tile_ptr[tile_map_offset + \
1773 (tile_x & 0x07) + ((tile_y & 0x07) * obj_pitch)]; \
1775 tile_8bpp_draw_##combine_op(0, none, 0, alpha_op) \
1777 #define obj_render_rotate(combine_op, color_depth, alpha_op, map_space) \
1779 tile_ptr = tile_base + ((obj_attribute_2 & 0x3FF) * 32); \
1780 obj_rotate_offset_##map_space(color_depth); \
1782 source_x += (y_delta * dmx) - (middle_x * dx); \
1783 source_y += (y_delta * dmy) - (middle_x * dy); \
1785 for(i = 0; i < obj_width; i++) \
1787 tile_x = (source_x >> 8); \
1788 tile_y = (source_y >> 8); \
1790 if(((u32)tile_x < (u32)max_x) && ((u32)tile_y < (u32)max_y)) \
1795 advance_dest_ptr_##combine_op(1); \
1798 for(; i < obj_width; i++) \
1800 tile_x = (source_x >> 8); \
1801 tile_y = (source_y >> 8); \
1803 if(((u32)tile_x >= (u32)max_x) || ((u32)tile_y >= (u32)max_y)) \
1806 tile_map_offset = ((tile_x >> 3) * tile_size_##color_depth) + \
1807 ((tile_y >> 3) * obj_tile_pitch); \
1808 obj_render_rotate_pixel_##color_depth(combine_op, alpha_op); \
1812 advance_dest_ptr_##combine_op(1); \
1816 // Render the current row of an affine transformed OBJ.
1818 #define obj_render_affine(combine_op, color_depth, alpha_op, map_space) \
1820 s16 *params = oam_ram + (((obj_attribute_1 >> 9) & 0x1F) * 16); \
1821 s32 dx = params[3]; \
1822 s32 dmx = params[7]; \
1823 s32 dy = params[11]; \
1824 s32 dmy = params[15]; \
1825 s32 source_x, source_y; \
1826 s32 tile_x, tile_y; \
1828 u32 tile_map_offset; \
1831 s32 max_x = obj_width; \
1832 s32 max_y = obj_height; \
1834 u32 obj_pitch = tile_width_##color_depth; \
1835 u32 obj_tile_pitch; \
1837 middle_x = (obj_width / 2); \
1838 middle_y = (obj_height / 2); \
1840 source_x = (middle_x << 8); \
1841 source_y = (middle_y << 8); \
1844 if(obj_attribute_0 & 0x200) \
1852 if((s32)obj_x < (s32)start) \
1854 u32 x_delta = start - obj_x; \
1855 middle_x -= x_delta; \
1856 obj_width -= x_delta; \
1859 if((s32)obj_width <= 0) \
1863 if((s32)(obj_x + obj_width) >= (s32)end) \
1865 obj_width = end - obj_x; \
1867 if((s32)obj_width <= 0) \
1870 dest_ptr = scanline + obj_x; \
1872 y_delta = vcount - (obj_y + middle_y); \
1874 obj_get_palette_##color_depth(); \
1878 obj_render_scale(combine_op, color_depth, alpha_op, map_space); \
1882 obj_render_rotate(combine_op, color_depth, alpha_op, map_space); \
1886 u32 obj_width_table[] = { 8, 16, 32, 64, 16, 32, 32, 64, 8, 8, 16, 32 };
1887 u32 obj_height_table[] = { 8, 16, 32, 64, 8, 8, 16, 32, 16, 32, 32, 64 };
1889 u8 obj_priority_list[5][160][128];
1890 u32 obj_priority_count[5][160];
1891 u32 obj_alpha_count[160];
1894 // Build obj rendering functions
1896 #ifdef RENDER_COLOR16_NORMAL
1898 #define render_scanline_obj_extra_variables_normal(bg_type) \
1899 const u32 pixel_combine = (1 << 8) \
1903 #define render_scanline_obj_extra_variables_normal(bg_type) \
1904 u16 *palette = palette_ram_converted + 256 \
1909 #define render_scanline_obj_extra_variables_color() \
1911 u32 pixel_combine = color_combine_mask(4) | (1 << 8) \
1913 #define render_scanline_obj_extra_variables_alpha_obj(map_space) \
1914 render_scanline_obj_extra_variables_color(); \
1915 if((pixel_combine & 0x00000200) == 0) \
1917 render_scanline_obj_color32_##map_space(priority, start, end, scanline); \
1921 #define render_scanline_obj_extra_variables_color16(map_space) \
1922 render_scanline_obj_extra_variables_color() \
1924 #define render_scanline_obj_extra_variables_color32(map_space) \
1925 render_scanline_obj_extra_variables_color() \
1927 #define render_scanline_obj_extra_variables_partial_alpha(map_space) \
1928 render_scanline_obj_extra_variables_color(); \
1929 u32 base_pixel_combine = pixel_combine \
1931 #define render_scanline_obj_extra_variables_copy(type) \
1932 u32 bldcnt = io_registers[REG_BLDCNT]; \
1933 u32 dispcnt = io_registers[REG_DISPCNT]; \
1934 u32 obj_enable = io_registers[REG_WINOUT] >> 8; \
1935 render_scanline_layer_functions_##type(); \
1936 u32 copy_start, copy_end; \
1937 u16 copy_buffer[240]; \
1940 #define render_scanline_obj_extra_variables_copy_tile(map_space) \
1941 render_scanline_obj_extra_variables_copy(tile) \
1943 #define render_scanline_obj_extra_variables_copy_bitmap(map_space) \
1944 render_scanline_obj_extra_variables_copy(bitmap) \
1947 #define render_scanline_obj_main(combine_op, alpha_op, map_space) \
1948 if(obj_attribute_0 & 0x100) \
1950 if((obj_attribute_0 >> 13) & 0x01) \
1952 obj_render_affine(combine_op, 8bpp, alpha_op, map_space); \
1956 obj_render_affine(combine_op, 4bpp, alpha_op, map_space); \
1961 vertical_offset = vcount - obj_y; \
1963 if((obj_attribute_1 >> 13) & 0x01) \
1964 vertical_offset = obj_height - vertical_offset - 1; \
1966 switch(((obj_attribute_0 >> 12) & 0x02) | \
1967 ((obj_attribute_1 >> 12) & 0x01)) \
1970 obj_render(combine_op, 4bpp, alpha_op, map_space, noflip); \
1974 obj_render(combine_op, 4bpp, alpha_op, map_space, flip); \
1978 obj_render(combine_op, 8bpp, alpha_op, map_space, noflip); \
1982 obj_render(combine_op, 8bpp, alpha_op, map_space, flip); \
1987 #define render_scanline_obj_no_partial_alpha(combine_op, alpha_op, map_space) \
1988 render_scanline_obj_main(combine_op, alpha_op, map_space) \
1990 #define render_scanline_obj_partial_alpha(combine_op, alpha_op, map_space) \
1991 if((obj_attribute_0 >> 10) & 0x03) \
1993 pixel_combine = 0x00000300; \
1994 render_scanline_obj_main(combine_op, alpha_obj, map_space); \
1998 pixel_combine = base_pixel_combine; \
1999 render_scanline_obj_main(combine_op, color32, map_space); \
2002 #define render_scanline_obj_prologue_transparent(alpha_op) \
2004 #define render_scanline_obj_prologue_copy_body(type) \
2005 copy_start = obj_x; \
2006 if(obj_attribute_0 & 0x200) \
2007 copy_end = obj_x + (obj_width * 2); \
2009 copy_end = obj_x + obj_width; \
2011 if(copy_start < start) \
2012 copy_start = start; \
2013 if(copy_end > end) \
2016 if((copy_start < end) && (copy_end > start)) \
2018 render_scanline_conditional_##type(copy_start, copy_end, copy_buffer, \
2019 obj_enable, dispcnt, bldcnt, layer_renderers); \
2020 copy_ptr = copy_buffer + copy_start; \
2027 #define render_scanline_obj_prologue_copy_tile() \
2028 render_scanline_obj_prologue_copy_body(tile) \
2030 #define render_scanline_obj_prologue_copy_bitmap() \
2031 render_scanline_obj_prologue_copy_body(bitmap) \
2033 #define render_scanline_obj_prologue_copy(alpha_op) \
2034 render_scanline_obj_prologue_##alpha_op() \
2037 #define render_scanline_obj_builder(combine_op, alpha_op, map_space, \
2039 void render_scanline_obj_##alpha_op##_##map_space(u32 priority, \
2040 u32 start, u32 end, render_scanline_dest_##alpha_op *scanline) \
2042 render_scanline_obj_extra_variables_##alpha_op(map_space); \
2046 s32 obj_width, obj_height; \
2047 u32 obj_attribute_0, obj_attribute_1, obj_attribute_2; \
2048 s32 vcount = io_registers[REG_VCOUNT]; \
2050 u32 current_pixels; \
2051 u32 current_pixel; \
2052 u32 current_palette; \
2053 u32 vertical_offset; \
2054 u32 partial_tile_run, partial_tile_offset; \
2057 render_scanline_dest_##alpha_op *dest_ptr; \
2058 u8 *tile_base = vram + 0x10000; \
2060 u32 obj_count = obj_priority_count[priority][vcount]; \
2061 u8 *obj_list = obj_priority_list[priority][vcount]; \
2063 for(obj_num = 0; obj_num < obj_count; obj_num++) \
2065 oam_ptr = oam_ram + (obj_list[obj_num] * 4); \
2066 obj_attribute_0 = oam_ptr[0]; \
2067 obj_attribute_1 = oam_ptr[1]; \
2068 obj_attribute_2 = oam_ptr[2]; \
2069 obj_size = ((obj_attribute_0 >> 12) & 0x0C) | (obj_attribute_1 >> 14); \
2071 obj_x = (s32)(obj_attribute_1 << 23) >> 23; \
2072 obj_width = obj_width_table[obj_size]; \
2074 render_scanline_obj_prologue_##combine_op(alpha_op); \
2076 obj_y = obj_attribute_0 & 0xFF; \
2081 obj_height = obj_height_table[obj_size]; \
2082 render_scanline_obj_##partial_alpha_op(combine_op, alpha_op, map_space); \
2086 render_scanline_obj_builder(transparent, normal, 1D, no_partial_alpha);
2087 render_scanline_obj_builder(transparent, normal, 2D, no_partial_alpha);
2088 render_scanline_obj_builder(transparent, color16, 1D, no_partial_alpha);
2089 render_scanline_obj_builder(transparent, color16, 2D, no_partial_alpha);
2090 render_scanline_obj_builder(transparent, color32, 1D, no_partial_alpha);
2091 render_scanline_obj_builder(transparent, color32, 2D, no_partial_alpha);
2092 render_scanline_obj_builder(transparent, alpha_obj, 1D, no_partial_alpha);
2093 render_scanline_obj_builder(transparent, alpha_obj, 2D, no_partial_alpha);
2094 render_scanline_obj_builder(transparent, partial_alpha, 1D, partial_alpha);
2095 render_scanline_obj_builder(transparent, partial_alpha, 2D, partial_alpha);
2096 render_scanline_obj_builder(copy, copy_tile, 1D, no_partial_alpha);
2097 render_scanline_obj_builder(copy, copy_tile, 2D, no_partial_alpha);
2098 render_scanline_obj_builder(copy, copy_bitmap, 1D, no_partial_alpha);
2099 render_scanline_obj_builder(copy, copy_bitmap, 2D, no_partial_alpha);
2103 void order_obj(u32 video_mode)
2105 s32 obj_num, priority, row;
2107 s32 obj_size, obj_mode;
2108 s32 obj_width, obj_height;
2110 u32 obj_attribute_0, obj_attribute_1, obj_attribute_2;
2111 s32 vcount = io_registers[REG_VCOUNT];
2112 u32 partial_tile_run, partial_tile_offset;
2115 u16 *oam_ptr = oam_ram + 508;
2117 u8 *tile_base = vram + 0x10000;
2120 for(priority = 0; priority < 5; priority++)
2122 for(row = 0; row < 160; row++)
2124 obj_priority_count[priority][row] = 0;
2128 for(row = 0; row < 160; row++)
2130 obj_alpha_count[row] = 0;
2133 for(obj_num = 127; obj_num >= 0; obj_num--, oam_ptr -= 4)
2135 obj_attribute_0 = oam_ptr[0];
2136 obj_attribute_2 = oam_ptr[2];
2137 obj_size = obj_attribute_0 & 0xC000;
2138 obj_priority = (obj_attribute_2 >> 10) & 0x03;
2139 obj_mode = (obj_attribute_0 >> 10) & 0x03;
2141 if(((obj_attribute_0 & 0x0300) != 0x0200) && (obj_size != 0xC000) &&
2142 (obj_mode != 3) && ((video_mode < 3) ||
2143 ((obj_attribute_2 & 0x3FF) >= 512)))
2145 obj_y = obj_attribute_0 & 0xFF;
2149 obj_attribute_1 = oam_ptr[1];
2150 obj_size = ((obj_size >> 12) & 0x0C) | (obj_attribute_1 >> 14);
2151 obj_height = obj_height_table[obj_size];
2152 obj_width = obj_width_table[obj_size];
2154 if(obj_attribute_0 & 0x200)
2160 if(((obj_y + obj_height) > 0) && (obj_y < 160))
2162 obj_x = (s32)(obj_attribute_1 << 23) >> 23;
2164 if(((obj_x + obj_width) > 0) && (obj_x < 240))
2168 obj_height += obj_y;
2172 if((obj_y + obj_height) >= 160)
2174 obj_height = 160 - obj_y;
2179 for(row = obj_y; row < obj_y + obj_height; row++)
2181 current_count = obj_priority_count[obj_priority][row];
2182 obj_priority_list[obj_priority][row][current_count] = obj_num;
2183 obj_priority_count[obj_priority][row] = current_count + 1;
2184 obj_alpha_count[row]++;
2194 for(row = obj_y; row < obj_y + obj_height; row++)
2196 current_count = obj_priority_count[obj_priority][row];
2197 obj_priority_list[obj_priority][row][current_count] = obj_num;
2198 obj_priority_count[obj_priority][row] = current_count + 1;
2207 u32 layer_order[16];
2210 u32 order_layers(u32 layer_flags)
2212 s32 priority, layer_number;
2215 for(priority = 3; priority >= 0; priority--)
2217 for(layer_number = 3; layer_number >= 0; layer_number--)
2219 if(((layer_flags >> layer_number) & 1) &&
2220 ((io_registers[REG_BG0CNT + layer_number] & 0x03) == priority))
2222 layer_order[layer_count] = layer_number;
2227 if((obj_priority_count[priority][io_registers[REG_VCOUNT]] > 0)
2228 && (layer_flags & 0x10))
2230 layer_order[layer_count] = priority | 0x04;
2236 #define fill_line(_start, _end) \
2239 for(i = _start; i < _end; i++) \
2241 dest_ptr[i] = color; \
2245 #define fill_line_color_normal() \
2246 color = palette_ram_converted[color] \
2248 #define fill_line_color_alpha() \
2250 #define fill_line_color_color16() \
2252 #define fill_line_color_color32() \
2254 #define fill_line_builder(type) \
2255 void fill_line_##type(u16 color, render_scanline_dest_##type *dest_ptr, \
2256 u32 start, u32 end) \
2258 fill_line_color_##type(); \
2259 fill_line(start, end); \
2262 fill_line_builder(normal);
2263 fill_line_builder(alpha);
2264 fill_line_builder(color16);
2265 fill_line_builder(color32);
2268 // Alpha blend two pixels (pixel_top and pixel_bottom).
2270 #define blend_pixel() \
2271 pixel_bottom = palette_ram_converted[(pixel_pair >> 16) & 0x1FF]; \
2272 pixel_bottom = (pixel_bottom | (pixel_bottom << 16)) & 0x07E0F81F; \
2273 pixel_top = ((pixel_top * blend_a) + (pixel_bottom * blend_b)) >> 4 \
2276 // Alpha blend two pixels, allowing for saturation (individual channels > 31).
2277 // The operation is optimized towards saturation not occuring.
2279 #define blend_saturate_pixel() \
2280 pixel_bottom = palette_ram_converted[(pixel_pair >> 16) & 0x1FF]; \
2281 pixel_bottom = (pixel_bottom | (pixel_bottom << 16)) & 0x07E0F81F; \
2282 pixel_top = ((pixel_top * blend_a) + (pixel_bottom * blend_b)) >> 4; \
2283 if(pixel_top & 0x08010020) \
2285 if(pixel_top & 0x08000000) \
2286 pixel_top |= 0x07E00000; \
2288 if(pixel_top & 0x00010000) \
2289 pixel_top |= 0x0000F800; \
2291 if(pixel_top & 0x00000020) \
2292 pixel_top |= 0x0000001F; \
2295 #define brighten_pixel() \
2296 pixel_top = upper + ((pixel_top * blend) >> 4); \
2298 #define darken_pixel() \
2299 pixel_top = (pixel_top * blend) >> 4; \
2301 #define effect_condition_alpha \
2302 ((pixel_pair & 0x04000200) == 0x04000200) \
2304 #define effect_condition_fade(pixel_source) \
2305 ((pixel_source & 0x00000200) == 0x00000200) \
2307 #define expand_pixel_no_dest(expand_type, pixel_source) \
2308 pixel_top = (pixel_top | (pixel_top << 16)) & 0x07E0F81F; \
2309 expand_type##_pixel(); \
2310 pixel_top &= 0x07E0F81F; \
2311 pixel_top = (pixel_top >> 16) | pixel_top \
2313 #define expand_pixel(expand_type, pixel_source) \
2314 pixel_top = palette_ram_converted[pixel_source & 0x1FF]; \
2315 expand_pixel_no_dest(expand_type, pixel_source); \
2316 *screen_dest_ptr = pixel_top \
2318 #define expand_loop(expand_type, effect_condition, pixel_source) \
2319 screen_src_ptr += start; \
2320 screen_dest_ptr += start; \
2324 for(i = 0; i < end; i++) \
2326 pixel_source = *screen_src_ptr; \
2327 if(effect_condition) \
2329 expand_pixel(expand_type, pixel_source); \
2333 *screen_dest_ptr = \
2334 palette_ram_converted[pixel_source & 0x1FF]; \
2338 screen_dest_ptr++; \
2342 #define expand_loop_partial_alpha(alpha_expand, expand_type) \
2343 screen_src_ptr += start; \
2344 screen_dest_ptr += start; \
2348 for(i = 0; i < end; i++) \
2350 pixel_pair = *screen_src_ptr; \
2351 if(effect_condition_fade(pixel_pair)) \
2353 if(effect_condition_alpha) \
2355 expand_pixel(alpha_expand, pixel_pair); \
2359 expand_pixel(expand_type, pixel_pair); \
2364 *screen_dest_ptr = \
2365 palette_ram_converted[pixel_pair & 0x1FF]; \
2369 screen_dest_ptr++; \
2373 #define expand_partial_alpha(expand_type) \
2374 if((blend_a + blend_b) > 16) \
2376 expand_loop_partial_alpha(blend_saturate, expand_type); \
2380 expand_loop_partial_alpha(blend, expand_type); \
2385 // Blend top two pixels of scanline with each other.
2387 #ifdef RENDER_COLOR16_NORMAL
2391 void expand_normal(u16 *screen_ptr, u32 start, u32 end)
2393 u32 i, pixel_source;
2394 screen_ptr += start;
2400 for(i = 0; i < end; i++)
2402 pixel_source = *screen_ptr;
2403 *screen_ptr = palette_ram_converted[pixel_source];
2413 #define expand_normal(screen_ptr, start, end)
2420 void expand_blend(u32 *screen_src_ptr, u16 *screen_dest_ptr,
2424 u32 pixel_top, pixel_bottom;
2425 u32 bldalpha = io_registers[REG_BLDALPHA];
2426 u32 blend_a = bldalpha & 0x1F;
2427 u32 blend_b = (bldalpha >> 8) & 0x1F;
2436 // The individual colors can saturate over 31, this should be taken
2437 // care of in an alternate pass as it incurs a huge additional speedhit.
2438 if((blend_a + blend_b) > 16)
2440 expand_loop(blend_saturate, effect_condition_alpha, pixel_pair);
2444 expand_loop(blend, effect_condition_alpha, pixel_pair);
2450 // Blend scanline with white.
2452 void expand_darken(u16 *screen_src_ptr, u16 *screen_dest_ptr,
2456 s32 blend = 16 - (io_registers[REG_BLDY] & 0x1F);
2462 expand_loop(darken, effect_condition_fade(pixel_top), pixel_top);
2466 // Blend scanline with black.
2468 void expand_brighten(u16 *screen_src_ptr, u16 *screen_dest_ptr,
2472 u32 blend = io_registers[REG_BLDY] & 0x1F;
2479 upper = ((0x07E0F81F * blend) >> 4) & 0x07E0F81F;
2482 expand_loop(brighten, effect_condition_fade(pixel_top), pixel_top);
2487 // Expand scanline such that if both top and bottom pass it's alpha,
2488 // if only top passes it's as specified, and if neither pass it's normal.
2490 void expand_darken_partial_alpha(u32 *screen_src_ptr, u16 *screen_dest_ptr,
2493 s32 blend = 16 - (io_registers[REG_BLDY] & 0x1F);
2495 u32 pixel_top, pixel_bottom;
2496 u32 bldalpha = io_registers[REG_BLDALPHA];
2497 u32 blend_a = bldalpha & 0x1F;
2498 u32 blend_b = (bldalpha >> 8) & 0x1F;
2510 expand_partial_alpha(darken);
2514 void expand_brighten_partial_alpha(u32 *screen_src_ptr, u16 *screen_dest_ptr,
2517 s32 blend = io_registers[REG_BLDY] & 0x1F;
2519 u32 pixel_top, pixel_bottom;
2520 u32 bldalpha = io_registers[REG_BLDALPHA];
2521 u32 blend_a = bldalpha & 0x1F;
2522 u32 blend_b = (bldalpha >> 8) & 0x1F;
2529 upper = ((0x07E0F81F * blend) >> 4) & 0x07E0F81F;
2538 expand_partial_alpha(brighten);
2542 // Render an OBJ layer from start to end, depending on the type (1D or 2D)
2543 // stored in dispcnt.
2545 #define render_obj_layer(type, dest, _start, _end) \
2546 current_layer &= ~0x04; \
2547 if(dispcnt & 0x40) \
2548 render_scanline_obj_##type##_1D(current_layer, _start, _end, dest); \
2550 render_scanline_obj_##type##_2D(current_layer, _start, _end, dest) \
2553 // Render a target all the way with the background color as taken from the
2556 #define fill_line_bg(type, dest, _start, _end) \
2557 fill_line_##type(0, dest, _start, _end) \
2560 // Render all layers as they appear in the layer order.
2562 #define render_layers(tile_alpha, obj_alpha, dest) \
2564 current_layer = layer_order[0]; \
2565 if(current_layer & 0x04) \
2567 /* If the first one is OBJ render the background then render it. */ \
2568 fill_line_bg(tile_alpha, dest, 0, 240); \
2569 render_obj_layer(obj_alpha, dest, 0, 240); \
2573 /* Otherwise render a base layer. */ \
2574 layer_renderers[current_layer].tile_alpha##_render_base(current_layer, \
2578 /* Render the rest of the layers. */ \
2579 for(layer_order_pos = 1; layer_order_pos < layer_count; layer_order_pos++) \
2581 current_layer = layer_order[layer_order_pos]; \
2582 if(current_layer & 0x04) \
2584 render_obj_layer(obj_alpha, dest, 0, 240); \
2588 layer_renderers[current_layer]. \
2589 tile_alpha##_render_transparent(current_layer, 0, 240, dest); \
2594 #define render_condition_alpha \
2595 (((io_registers[REG_BLDALPHA] & 0x1F1F) != 0x001F) && \
2596 ((io_registers[REG_BLDCNT] & 0x3F) != 0) && \
2597 ((io_registers[REG_BLDCNT] & 0x3F00) != 0)) \
2599 #define render_condition_fade \
2600 (((io_registers[REG_BLDY] & 0x1F) != 0) && \
2601 ((io_registers[REG_BLDCNT] & 0x3F) != 0)) \
2603 #define render_layers_color_effect(renderer, layer_condition, \
2604 alpha_condition, fade_condition, _start, _end) \
2606 if(layer_condition) \
2608 if(obj_alpha_count[io_registers[REG_VCOUNT]] > 0) \
2610 /* Render based on special effects mode. */ \
2611 u32 screen_buffer[240]; \
2612 switch((bldcnt >> 6) & 0x03) \
2617 if(alpha_condition) \
2619 renderer(alpha, alpha_obj, screen_buffer); \
2620 expand_blend(screen_buffer, scanline, _start, _end); \
2626 /* Fade to white */ \
2629 if(fade_condition) \
2631 renderer(color32, partial_alpha, screen_buffer); \
2632 expand_brighten_partial_alpha(screen_buffer, scanline, \
2639 /* Fade to black */ \
2642 if(fade_condition) \
2644 renderer(color32, partial_alpha, screen_buffer); \
2645 expand_darken_partial_alpha(screen_buffer, scanline, \
2653 renderer(color32, partial_alpha, screen_buffer); \
2654 expand_blend(screen_buffer, scanline, _start, _end); \
2658 /* Render based on special effects mode. */ \
2659 switch((bldcnt >> 6) & 0x03) \
2664 if(alpha_condition) \
2666 u32 screen_buffer[240]; \
2667 renderer(alpha, alpha_obj, screen_buffer); \
2668 expand_blend(screen_buffer, scanline, _start, _end); \
2674 /* Fade to white */ \
2677 if(fade_condition) \
2679 renderer(color16, color16, scanline); \
2680 expand_brighten(scanline, scanline, _start, _end); \
2686 /* Fade to black */ \
2689 if(fade_condition) \
2691 renderer(color16, color16, scanline); \
2692 expand_darken(scanline, scanline, _start, _end); \
2699 renderer(normal, normal, scanline); \
2700 expand_normal(scanline, _start, _end); \
2705 u32 pixel_top = palette_ram_converted[0]; \
2706 switch((bldcnt >> 6) & 0x03) \
2708 /* Fade to white */ \
2711 if(color_combine_mask_a(5)) \
2713 u32 blend = io_registers[REG_BLDY] & 0x1F; \
2719 upper = ((0x07E0F81F * blend) >> 4) & 0x07E0F81F; \
2720 blend = 16 - blend; \
2722 expand_pixel_no_dest(brighten, pixel_top); \
2727 /* Fade to black */ \
2730 if(color_combine_mask_a(5)) \
2732 s32 blend = 16 - (io_registers[REG_BLDY] & 0x1F); \
2737 expand_pixel_no_dest(darken, pixel_top); \
2742 fill_line_color16(pixel_top, scanline, _start, _end); \
2747 // Renders an entire scanline from 0 to 240, based on current color mode.
2749 void render_scanline_tile(u16 *scanline, u32 dispcnt)
2752 u32 layer_order_pos;
2753 u32 bldcnt = io_registers[REG_BLDCNT];
2754 render_scanline_layer_functions_tile();
2756 render_layers_color_effect(render_layers, layer_count,
2757 render_condition_alpha, render_condition_fade, 0, 240);
2760 void render_scanline_bitmap(u16 *scanline, u32 dispcnt)
2762 u32 bldcnt = io_registers[REG_BLDCNT];
2763 render_scanline_layer_functions_bitmap();
2765 u32 layer_order_pos;
2767 fill_line_bg(normal, scanline, 0, 240);
2769 for(layer_order_pos = 0; layer_order_pos < layer_count; layer_order_pos++)
2771 current_layer = layer_order[layer_order_pos];
2772 if(current_layer & 0x04)
2774 render_obj_layer(normal, scanline, 0, 240);
2778 layer_renderers->normal_render(0, 240, scanline);
2783 // Render layers from start to end based on if they're allowed in the
2786 #define render_layers_conditional(tile_alpha, obj_alpha, dest) \
2789 current_layer = layer_order[layer_order_pos]; \
2790 /* If OBJ aren't enabled skip to the first non-OBJ layer */ \
2791 if(!(enable_flags & 0x10)) \
2793 while((current_layer & 0x04) || !((1 << current_layer) & enable_flags)) \
2795 layer_order_pos++; \
2796 current_layer = layer_order[layer_order_pos]; \
2798 /* Oops, ran out of layers, render the background. */ \
2799 if(layer_order_pos == layer_count) \
2801 fill_line_bg(tile_alpha, dest, start, end); \
2806 /* Render the first valid layer */ \
2807 layer_renderers[current_layer].tile_alpha##_render_base(current_layer, \
2808 start, end, dest); \
2810 layer_order_pos++; \
2812 /* Render the rest of the layers if active, skipping OBJ ones. */ \
2813 for(; layer_order_pos < layer_count; layer_order_pos++) \
2815 current_layer = layer_order[layer_order_pos]; \
2816 if(!(current_layer & 0x04) && ((1 << current_layer) & enable_flags)) \
2818 layer_renderers[current_layer]. \
2819 tile_alpha##_render_transparent(current_layer, start, end, dest); \
2825 /* Find the first active layer, skip all of the inactive ones */ \
2826 while(!((current_layer & 0x04) || ((1 << current_layer) & enable_flags))) \
2828 layer_order_pos++; \
2829 current_layer = layer_order[layer_order_pos]; \
2831 /* Oops, ran out of layers, render the background. */ \
2832 if(layer_order_pos == layer_count) \
2834 fill_line_bg(tile_alpha, dest, start, end); \
2839 if(current_layer & 0x04) \
2841 /* If the first one is OBJ render the background then render it. */ \
2842 fill_line_bg(tile_alpha, dest, start, end); \
2843 render_obj_layer(obj_alpha, dest, start, end); \
2847 /* Otherwise render a base layer. */ \
2848 layer_renderers[current_layer]. \
2849 tile_alpha##_render_base(current_layer, start, end, dest); \
2852 layer_order_pos++; \
2854 /* Render the rest of the layers. */ \
2855 for(; layer_order_pos < layer_count; layer_order_pos++) \
2857 current_layer = layer_order[layer_order_pos]; \
2858 if(current_layer & 0x04) \
2860 render_obj_layer(obj_alpha, dest, start, end); \
2864 if(enable_flags & (1 << current_layer)) \
2866 layer_renderers[current_layer]. \
2867 tile_alpha##_render_transparent(current_layer, start, end, dest); \
2878 // Render all of the BG and OBJ in a tiled scanline from start to end ONLY if
2879 // enable_flag allows that layer/OBJ. Also conditionally render color effects.
2881 void render_scanline_conditional_tile(u32 start, u32 end, u16 *scanline,
2882 u32 enable_flags, u32 dispcnt, u32 bldcnt, tile_layer_render_struct
2886 u32 layer_order_pos = 0;
2888 render_layers_color_effect(render_layers_conditional,
2889 (layer_count && (enable_flags & 0x1F)),
2890 ((enable_flags & 0x20) && render_condition_alpha),
2891 ((enable_flags & 0x20) && render_condition_fade), start, end);
2895 // Render the BG and OBJ in a bitmap scanline from start to end ONLY if
2896 // enable_flag allows that layer/OBJ. Also conditionally render color effects.
2898 void render_scanline_conditional_bitmap(u32 start, u32 end, u16 *scanline,
2899 u32 enable_flags, u32 dispcnt, u32 bldcnt, bitmap_layer_render_struct
2903 u32 layer_order_pos;
2905 fill_line_bg(normal, scanline, start, end);
2907 for(layer_order_pos = 0; layer_order_pos < layer_count; layer_order_pos++)
2909 current_layer = layer_order[layer_order_pos];
2910 if(current_layer & 0x04)
2912 if(enable_flags & 0x10)
2914 render_obj_layer(normal, scanline, start, end);
2919 if(enable_flags & 0x04)
2920 layer_renderers->normal_render(start, end, scanline);
2926 #define window_x_coords(window_number) \
2927 window_##window_number##_x1 = \
2928 io_registers[REG_WIN##window_number##H] >> 8; \
2929 window_##window_number##_x2 = \
2930 io_registers[REG_WIN##window_number##H] & 0xFF; \
2931 window_##window_number##_enable = \
2932 (winin >> (window_number * 8)) & 0x3F; \
2934 if(window_##window_number##_x1 > 240) \
2935 window_##window_number##_x1 = 240; \
2937 if(window_##window_number##_x2 > 240) \
2938 window_##window_number##_x2 = 240 \
2940 #define window_coords(window_number) \
2941 u32 window_##window_number##_x1, window_##window_number##_x2; \
2942 u32 window_##window_number##_y1, window_##window_number##_y2; \
2943 u32 window_##window_number##_enable; \
2944 window_##window_number##_y1 = \
2945 io_registers[REG_WIN##window_number##V] >> 8; \
2946 window_##window_number##_y2 = \
2947 io_registers[REG_WIN##window_number##V] & 0xFF; \
2949 if(window_##window_number##_y1 > window_##window_number##_y2) \
2951 if((((vcount <= window_##window_number##_y2) || \
2952 (vcount > window_##window_number##_y1)) || \
2953 (window_##window_number##_y2 > 227)) && \
2954 (window_##window_number##_y1 <= 227)) \
2956 window_x_coords(window_number); \
2960 window_##window_number##_x1 = 240; \
2961 window_##window_number##_x2 = 240; \
2966 if((((vcount >= window_##window_number##_y1) && \
2967 (vcount < window_##window_number##_y2)) || \
2968 (window_##window_number##_y2 > 227)) && \
2969 (window_##window_number##_y1 <= 227)) \
2971 window_x_coords(window_number); \
2975 window_##window_number##_x1 = 240; \
2976 window_##window_number##_x2 = 240; \
2980 #define render_window_segment(type, start, end, window_type) \
2983 render_scanline_conditional_##type(start, end, scanline, \
2984 window_##window_type##_enable, dispcnt, bldcnt, layer_renderers); \
2987 #define render_window_segment_unequal(type, start, end, window_type) \
2988 render_scanline_conditional_##type(start, end, scanline, \
2989 window_##window_type##_enable, dispcnt, bldcnt, layer_renderers) \
2991 #define render_window_segment_clip(type, clip_start, clip_end, start, end, \
2996 if(start < clip_start) \
2998 if(end > clip_start) \
3000 if(end > clip_end) \
3002 render_window_segment_unequal(type, clip_start, clip_end, \
3007 render_window_segment_unequal(type, clip_start, end, window_type); \
3013 if(end > clip_end) \
3015 if(start < clip_end) \
3016 render_window_segment_unequal(type, start, clip_end, window_type); \
3020 render_window_segment_unequal(type, start, end, window_type); \
3025 #define render_window_clip_1(type, start, end) \
3026 if(window_1_x1 != 240) \
3028 if(window_1_x1 > window_1_x2) \
3030 render_window_segment_clip(type, start, end, 0, window_1_x2, 1); \
3031 render_window_segment_clip(type, start, end, window_1_x2, window_1_x1, \
3033 render_window_segment_clip(type, start, end, window_1_x1, 240, 1); \
3037 render_window_segment_clip(type, start, end, 0, window_1_x1, out); \
3038 render_window_segment_clip(type, start, end, window_1_x1, window_1_x2, \
3040 render_window_segment_clip(type, start, end, window_1_x2, 240, out); \
3045 render_window_segment(type, start, end, out); \
3048 #define render_window_clip_obj(type, start, end); \
3049 render_window_segment(type, start, end, out); \
3050 if(dispcnt & 0x40) \
3051 render_scanline_obj_copy_##type##_1D(4, start, end, scanline); \
3053 render_scanline_obj_copy_##type##_2D(4, start, end, scanline) \
3056 #define render_window_segment_clip_obj(type, clip_start, clip_end, start, \
3061 if(start < clip_start) \
3063 if(end > clip_start) \
3065 if(end > clip_end) \
3067 render_window_clip_obj(type, clip_start, clip_end); \
3071 render_window_clip_obj(type, clip_start, end); \
3077 if(end > clip_end) \
3079 if(start < clip_end) \
3081 render_window_clip_obj(type, start, clip_end); \
3086 render_window_clip_obj(type, start, end); \
3092 #define render_window_clip_1_obj(type, start, end) \
3093 if(window_1_x1 != 240) \
3095 if(window_1_x1 > window_1_x2) \
3097 render_window_segment_clip(type, start, end, 0, window_1_x2, 1); \
3098 render_window_segment_clip_obj(type, start, end, window_1_x2, \
3100 render_window_segment_clip(type, start, end, window_1_x1, 240, 1); \
3104 render_window_segment_clip_obj(type, start, end, 0, window_1_x1); \
3105 render_window_segment_clip(type, start, end, window_1_x1, window_1_x2, \
3107 render_window_segment_clip_obj(type, start, end, window_1_x2, 240); \
3112 render_window_clip_obj(type, start, end); \
3117 #define render_window_single(type, window_number) \
3118 u32 winin = io_registers[REG_WININ]; \
3119 window_coords(window_number); \
3120 if(window_##window_number##_x1 > window_##window_number##_x2) \
3122 render_window_segment(type, 0, window_##window_number##_x2, \
3124 render_window_segment(type, window_##window_number##_x2, \
3125 window_##window_number##_x1, out); \
3126 render_window_segment(type, window_##window_number##_x1, 240, \
3131 render_window_segment(type, 0, window_##window_number##_x1, out); \
3132 render_window_segment(type, window_##window_number##_x1, \
3133 window_##window_number##_x2, window_number); \
3134 render_window_segment(type, window_##window_number##_x2, 240, out); \
3137 #define render_window_multi(type, front, back) \
3138 if(window_##front##_x1 > window_##front##_x2) \
3140 render_window_segment(type, 0, window_##front##_x2, front); \
3141 render_window_clip_##back(type, window_##front##_x2, \
3142 window_##front##_x1); \
3143 render_window_segment(type, window_##front##_x1, 240, front); \
3147 render_window_clip_##back(type, 0, window_##front##_x1); \
3148 render_window_segment(type, window_##front##_x1, window_##front##_x2, \
3150 render_window_clip_##back(type, window_##front##_x2, 240); \
3153 #define render_scanline_window_builder(type) \
3154 void render_scanline_window_##type(u16 *scanline, u32 dispcnt) \
3156 u32 vcount = io_registers[REG_VCOUNT]; \
3157 u32 winout = io_registers[REG_WINOUT]; \
3158 u32 bldcnt = io_registers[REG_BLDCNT]; \
3159 u32 window_out_enable = winout & 0x3F; \
3161 render_scanline_layer_functions_##type(); \
3163 switch(dispcnt >> 13) \
3165 /* Just window 0 */ \
3168 render_window_single(type, 0); \
3172 /* Just window 1 */ \
3175 render_window_single(type, 1); \
3179 /* Windows 1 and 2 */ \
3182 u32 winin = io_registers[REG_WININ]; \
3185 render_window_multi(type, 0, 1); \
3189 /* Just OBJ windows */ \
3192 u32 window_obj_enable = winout >> 8; \
3193 render_window_clip_obj(type, 0, 240); \
3197 /* Window 0 and OBJ window */ \
3200 u32 window_obj_enable = winout >> 8; \
3201 u32 winin = io_registers[REG_WININ]; \
3203 render_window_multi(type, 0, obj); \
3207 /* Window 1 and OBJ window */ \
3210 u32 window_obj_enable = winout >> 8; \
3211 u32 winin = io_registers[REG_WININ]; \
3213 render_window_multi(type, 1, obj); \
3217 /* Window 0, 1, and OBJ window */ \
3220 u32 window_obj_enable = winout >> 8; \
3221 u32 winin = io_registers[REG_WININ]; \
3224 render_window_multi(type, 0, 1_obj); \
3230 render_scanline_window_builder(tile);
3231 render_scanline_window_builder(bitmap);
3233 u32 active_layers[6] = { 0x1F, 0x17, 0x1C, 0x14, 0x14, 0x14 };
3235 u32 small_resolution_width = 240;
3236 u32 small_resolution_height = 160;
3237 u32 resolution_width, resolution_height;
3239 void update_scanline()
3241 u32 pitch = get_screen_pitch();
3242 u32 dispcnt = io_registers[REG_DISPCNT];
3243 u32 display_flags = (dispcnt >> 8) & 0x1F;
3244 u32 vcount = io_registers[REG_VCOUNT];
3245 u16 *screen_offset = get_screen_pixels() + (vcount * pitch);
3246 u32 video_mode = dispcnt & 0x07;
3249 // If OAM has been modified since the last scanline has been updated then
3250 // reorder and reprofile the OBJ lists.
3253 order_obj(video_mode);
3257 order_layers((dispcnt >> 8) & active_layers[video_mode]);
3262 // If the screen is in in forced blank draw pure white.
3265 fill_line_color16(0xFFFF, screen_offset, 0, 240);
3273 render_scanline_window_tile(screen_offset, dispcnt);
3277 render_scanline_tile(screen_offset, dispcnt);
3283 render_scanline_window_bitmap(screen_offset, dispcnt);
3285 render_scanline_bitmap(screen_offset, dispcnt);
3289 affine_reference_x[0] += (s16)io_registers[REG_BG2PB];
3290 affine_reference_y[0] += (s16)io_registers[REG_BG2PD];
3291 affine_reference_x[1] += (s16)io_registers[REG_BG3PB];
3292 affine_reference_y[1] += (s16)io_registers[REG_BG3PD];
3297 u32 screen_flip = 0;
3301 if(video_direct == 0)
3303 u32 *old_ge_cmd_ptr = ge_cmd_ptr;
3304 sceKernelDcacheWritebackAll();
3306 // Render the current screen
3307 ge_cmd_ptr = ge_cmd + 2;
3308 GE_CMD(TBP0, ((u32)screen_pixels & 0x00FFFFFF));
3309 GE_CMD(TBW0, (((u32)screen_pixels & 0xFF000000) >> 8) |
3311 ge_cmd_ptr = old_ge_cmd_ptr;
3313 sceGeListEnQueue(ge_cmd, ge_cmd_ptr, gecbid, NULL);
3315 // Flip to the next screen
3319 screen_pixels = screen_texture + (240 * 160 * 2);
3321 screen_pixels = screen_texture;
3327 #define integer_scale_copy_2() \
3328 current_scanline_ptr[x2] = current_pixel; \
3329 current_scanline_ptr[x2 - 1] = current_pixel; \
3332 #define integer_scale_copy_3() \
3333 current_scanline_ptr[x2] = current_pixel; \
3334 current_scanline_ptr[x2 - 1] = current_pixel; \
3335 current_scanline_ptr[x2 - 2] = current_pixel; \
3338 #define integer_scale_copy_4() \
3339 current_scanline_ptr[x2] = current_pixel; \
3340 current_scanline_ptr[x2 - 1] = current_pixel; \
3341 current_scanline_ptr[x2 - 2] = current_pixel; \
3342 current_scanline_ptr[x2 - 3] = current_pixel; \
3345 #define integer_scale_horizontal(scale_factor) \
3346 for(y = 0; y < 160; y++) \
3348 for(x = 239, x2 = (240 * video_scale) - 1; x >= 0; x--) \
3350 current_pixel = current_scanline_ptr[x]; \
3351 integer_scale_copy_##scale_factor(); \
3352 current_scanline_ptr[x2] = current_scanline_ptr[x]; \
3353 current_scanline_ptr[x2 - 1] = current_scanline_ptr[x]; \
3354 current_scanline_ptr[x2 - 2] = current_scanline_ptr[x]; \
3356 current_scanline_ptr += pitch; \
3361 if((video_scale != 1) && (current_scale != unscaled))
3365 u16 *screen_ptr = get_screen_pixels();
3366 u16 *current_scanline_ptr = screen_ptr;
3367 u32 pitch = get_screen_pitch();
3374 integer_scale_horizontal(2);
3378 integer_scale_horizontal(3);
3383 integer_scale_horizontal(4);
3388 for(y = 159, y2 = (160 * video_scale) - 1; y >= 0; y--)
3390 for(i = 0; i < video_scale; i++)
3392 memcpy(screen_ptr + (y2 * pitch),
3393 screen_ptr + (y * pitch), 480 * video_scale);
3400 if((screen_scale == unscaled) &&
3401 (resolution_width == small_resolution_width) &&
3402 (resolution_height == small_resolution_height))
3404 SDL_Rect srect = {0, 0, 240, 160};
3405 SDL_Rect drect = {40, 40, 240, 160};
3406 SDL_BlitSurface(screen, &srect, hw_screen, &drect);
3410 SDL_BlitSurface(screen, NULL, hw_screen, NULL);
3420 u32 frame_to_render;
3422 void update_screen()
3424 if(!skip_next_frame)
3432 sceDisplaySetMode(0, PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT);
3434 sceDisplayWaitVblankStart();
3435 sceDisplaySetFrameBuf((void*)psp_gu_vram_base, PSP_LINE_SIZE,
3436 PSP_DISPLAY_PIXEL_FORMAT_565, PSP_DISPLAY_SETBUF_NEXTFRAME);
3440 sceGuStart(GU_DIRECT, display_list);
3441 sceGuDrawBuffer(GU_PSM_5650, (void*)0, PSP_LINE_SIZE);
3442 sceGuDispBuffer(PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT,
3443 (void*)0, PSP_LINE_SIZE);
3444 sceGuClear(GU_COLOR_BUFFER_BIT);
3446 sceGuOffset(2048 - (PSP_SCREEN_WIDTH / 2), 2048 - (PSP_SCREEN_HEIGHT / 2));
3447 sceGuViewport(2048, 2048, PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT);
3449 sceGuScissor(0, 0, PSP_SCREEN_WIDTH + 1, PSP_SCREEN_HEIGHT + 1);
3450 sceGuEnable(GU_SCISSOR_TEST);
3451 sceGuTexMode(GU_PSM_5650, 0, 0, GU_FALSE);
3452 sceGuTexFunc(GU_TFX_REPLACE, GU_TCC_RGBA);
3453 sceGuTexFilter(GU_LINEAR, GU_LINEAR);
3454 sceGuEnable(GU_TEXTURE_2D);
3456 sceGuFrontFace(GU_CW);
3457 sceGuDisable(GU_BLEND);
3462 sceDisplayWaitVblankStart();
3463 sceGuDisplay(GU_TRUE);
3465 PspGeCallbackData gecb;
3466 gecb.signal_func = NULL;
3467 gecb.signal_arg = NULL;
3468 gecb.finish_func = Ge_Finish_Callback;
3469 gecb.finish_arg = NULL;
3470 gecbid = sceGeSetCallback(&gecb);
3472 screen_vertex[0] = 0 + 0.5;
3473 screen_vertex[1] = 0 + 0.5;
3474 screen_vertex[2] = 0 + 0.5;
3475 screen_vertex[3] = 0 + 0.5;
3476 screen_vertex[4] = 0;
3477 screen_vertex[5] = GBA_SCREEN_WIDTH - 0.5;
3478 screen_vertex[6] = GBA_SCREEN_HEIGHT - 0.5;
3479 screen_vertex[7] = PSP_SCREEN_WIDTH - 0.5;
3480 screen_vertex[8] = PSP_SCREEN_HEIGHT - 0.5;
3481 screen_vertex[9] = 0;
3483 // Set framebuffer to PSP VRAM
3484 GE_CMD(FBP, ((u32)psp_gu_vram_base & 0x00FFFFFF));
3485 GE_CMD(FBW, (((u32)psp_gu_vram_base & 0xFF000000) >> 8) | PSP_LINE_SIZE);
3486 // Set texture 0 to the screen texture
3487 GE_CMD(TBP0, ((u32)screen_texture & 0x00FFFFFF));
3488 GE_CMD(TBW0, (((u32)screen_texture & 0xFF000000) >> 8) | GBA_SCREEN_WIDTH);
3489 // Set the texture size to 256 by 256 (2^8 by 2^8)
3490 GE_CMD(TSIZE0, (8 << 8) | 8);
3491 // Flush the texture cache
3493 // Use 2D coordinates, no indeces, no weights, 32bit float positions,
3494 // 32bit float texture coordinates
3495 GE_CMD(VTYPE, (1 << 23) | (0 << 11) | (0 << 9) |
3496 (3 << 7) | (0 << 5) | (0 << 2) | 3);
3497 // Set the base of the index list pointer to 0
3499 // Set the rest of index list pointer to 0 (not being used)
3501 // Set the base of the screen vertex list pointer
3502 GE_CMD(BASE, ((u32)screen_vertex & 0xFF000000) >> 8);
3503 // Set the rest of the screen vertex list pointer
3504 GE_CMD(VADDR, ((u32)screen_vertex & 0x00FFFFFF));
3505 // Primitive kick: render sprite (primitive 6), 2 vertices
3506 GE_CMD(PRIM, (6 << 16) | 2);
3507 // Done with commands
3509 // Raise signal interrupt
3519 SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_NOPARACHUTE);
3522 SDL_GP2X_AllowGfxMemory(NULL, 0);
3524 hw_screen = SDL_SetVideoMode(320 * video_scale, 240 * video_scale,
3527 screen = SDL_CreateRGBSurface(SDL_HWSURFACE, 240 * video_scale,
3528 160 * video_scale, 16, 0xFFFF, 0xFFFF, 0xFFFF, 0);
3530 gp2x_load_mmuhack();
3532 screen = SDL_SetVideoMode(240 * video_scale, 160 * video_scale, 16, 0);
3539 video_scale_type screen_scale = scaled_aspect;
3540 video_scale_type current_scale = scaled_aspect;
3541 video_filter_type screen_filter = filter_bilinear;
3546 void video_resolution_large()
3548 if(video_direct != 1)
3551 screen_pixels = psp_gu_vram_base;
3553 sceGuStart(GU_DIRECT, display_list);
3554 sceGuDispBuffer(PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT,
3555 (void*)0, PSP_LINE_SIZE);
3560 void set_gba_resolution(video_scale_type scale)
3562 u32 filter_linear = 0;
3563 screen_scale = scale;
3567 screen_vertex[2] = 120 + 0.5;
3568 screen_vertex[3] = 56 + 0.5;
3569 screen_vertex[7] = GBA_SCREEN_WIDTH + 120 - 0.5;
3570 screen_vertex[8] = GBA_SCREEN_HEIGHT + 56 - 0.5;
3574 screen_vertex[2] = 36 + 0.5;
3575 screen_vertex[3] = 0 + 0.5;
3576 screen_vertex[7] = 408 + 36 - 0.5;
3577 screen_vertex[8] = PSP_SCREEN_HEIGHT - 0.5;
3581 screen_vertex[2] = 0;
3582 screen_vertex[3] = 0;
3583 screen_vertex[7] = PSP_SCREEN_WIDTH;
3584 screen_vertex[8] = PSP_SCREEN_HEIGHT;
3588 sceGuStart(GU_DIRECT, display_list);
3589 if(screen_filter == filter_bilinear)
3590 sceGuTexFilter(GU_LINEAR, GU_LINEAR);
3592 sceGuTexFilter(GU_NEAREST, GU_NEAREST);
3597 clear_screen(0x0000);
3600 void video_resolution_small()
3602 if(video_direct != 0)
3604 set_gba_resolution(screen_scale);
3606 screen_pixels = screen_texture;
3609 sceGuStart(GU_DIRECT, display_list);
3610 sceGuDispBuffer(PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT,
3611 (void*)0, PSP_LINE_SIZE);
3616 void clear_screen(u16 color)
3619 u16 *src_ptr = get_screen_pixels();
3623 for(i = 0; i < (512 * 272); i++, src_ptr++)
3628 // I don't know why this doesn't work.
3629 /* color = (((color & 0x1F) * 255 / 31) << 0) |
3630 ((((color >> 5) & 0x3F) * 255 / 63) << 8) |
3631 ((((color >> 11) & 0x1F) * 255 / 31) << 16) | (0xFF << 24);
3633 sceGuStart(GU_DIRECT, display_list);
3634 sceGuDrawBuffer(GU_PSM_5650, (void*)0, PSP_LINE_SIZE);
3635 //sceGuDispBuffer(PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT,
3636 // (void*)0, PSP_LINE_SIZE);
3637 sceGuClearColor(color);
3638 sceGuClear(GU_COLOR_BUFFER_BIT);
3645 void video_resolution_large()
3647 current_scale = unscaled;
3650 SDL_FreeSurface(screen);
3651 SDL_GP2X_AllowGfxMemory(NULL, 0);
3652 hw_screen = SDL_SetVideoMode(320, 240, 16, SDL_HWSURFACE);
3653 screen = SDL_CreateRGBSurface(SDL_HWSURFACE, 320, 240, 16, 0xFFFF,
3655 resolution_width = 320;
3656 resolution_height = 240;
3659 gp2x_load_mmuhack();
3661 screen = SDL_SetVideoMode(480, 272, 16, 0);
3662 resolution_width = 480;
3663 resolution_height = 272;
3667 void video_resolution_small()
3669 current_scale = screen_scale;
3672 SDL_FreeSurface(screen);
3673 SDL_GP2X_AllowGfxMemory(NULL, 0);
3674 hw_screen = SDL_SetVideoMode((screen_scale == unscaled ? 320 :
3675 small_resolution_width * video_scale), (screen_scale == unscaled ? 320 :
3676 small_resolution_height * video_scale), 16, SDL_HWSURFACE);
3678 screen = SDL_CreateRGBSurface(SDL_HWSURFACE,
3679 small_resolution_width * video_scale, small_resolution_height *
3680 video_scale, 16, 0xFFFF, 0xFFFF, 0xFFFF, 0);
3684 gp2x_load_mmuhack();
3686 screen = SDL_SetVideoMode(small_resolution_width * video_scale,
3687 small_resolution_height * video_scale, 16, 0);
3689 resolution_width = small_resolution_width;
3690 resolution_height = small_resolution_height;
3693 void set_gba_resolution(video_scale_type scale)
3695 if(screen_scale != scale)
3697 screen_scale = scale;
3703 small_resolution_width = 240 * video_scale;
3704 small_resolution_height = 160 * video_scale;
3710 void clear_screen(u16 color)
3712 u16 *dest_ptr = get_screen_pixels();
3713 u32 line_skip = get_screen_pitch() - screen->w;
3716 for(y = 0; y < screen->h; y++)
3718 for(x = 0; x < screen->w; x++, dest_ptr++)
3722 dest_ptr += line_skip;
3730 u16 *copy = malloc(240 * 160 * 2);
3731 memcpy(copy, get_screen_pixels(), 240 * 160 * 2);
3735 void blit_to_screen(u16 *src, u32 w, u32 h, u32 dest_x, u32 dest_y)
3737 u32 pitch = get_screen_pitch();
3738 u16 *dest_ptr = get_screen_pixels() + dest_x + (dest_y * pitch);
3741 u32 line_skip = pitch - w;
3744 for(y = 0; y < h; y++)
3746 for(x = 0; x < w; x++, src_ptr++, dest_ptr++)
3748 *dest_ptr = *src_ptr;
3750 dest_ptr += line_skip;
3754 void print_string_ext(const char *str, u16 fg_color, u16 bg_color,
3755 u32 x, u32 y, void *_dest_ptr, u32 pitch, u32 pad)
3757 u16 *dest_ptr = (u16 *)_dest_ptr + (y * pitch) + x;
3758 u8 current_char = str[0];
3767 if(y + FONT_HEIGHT >= resolution_height)
3772 if(current_char == '\n')
3776 dest_ptr = get_screen_pixels() + (y * pitch) + x;
3780 glyph_offset = _font_offset[current_char];
3781 current_x += FONT_WIDTH;
3782 for(i2 = 0; i2 < FONT_HEIGHT; i2++, glyph_offset++)
3784 current_row = _font_bits[glyph_offset];
3785 for(i3 = 0; i3 < FONT_WIDTH; i3++)
3787 if((current_row >> (15 - i3)) & 0x01)
3788 *dest_ptr = fg_color;
3790 *dest_ptr = bg_color;
3793 dest_ptr += (pitch - FONT_WIDTH);
3795 dest_ptr = dest_ptr - (pitch * FONT_HEIGHT) + FONT_WIDTH;
3800 current_char = str[str_index];
3802 if((i < pad) && (current_char == 0))
3811 if(current_x + FONT_WIDTH >= resolution_width /* EDIT */)
3816 void print_string(const char *str, u16 fg_color, u16 bg_color,
3819 print_string_ext(str, fg_color, bg_color, x, y, get_screen_pixels(),
3820 get_screen_pitch(), 0);
3823 void print_string_pad(const char *str, u16 fg_color, u16 bg_color,
3824 u32 x, u32 y, u32 pad)
3826 print_string_ext(str, fg_color, bg_color, x, y, get_screen_pixels(),
3827 get_screen_pitch(), pad);
3830 u32 debug_cursor_x = 0;
3831 u32 debug_cursor_y = 0;
3835 void debug_screen_clear()
3839 void debug_screen_start()
3843 void debug_screen_end()
3847 void debug_screen_update()
3851 void debug_screen_printf(const char *format, ...)
3855 va_start(ap, format);
3856 vprintf(format, ap);
3860 void debug_screen_newline(u32 count)
3868 void debug_screen_clear()
3872 clear_screen(0x0000);
3875 void debug_screen_start()
3877 video_resolution_large();
3878 debug_screen_clear();
3881 void debug_screen_end()
3883 video_resolution_small();
3886 void debug_screen_update()
3891 void debug_screen_printf(const char *format, ...)
3893 char str_buffer[512];
3894 u32 str_buffer_length;
3897 va_start(ap, format);
3898 str_buffer_length = vsnprintf(str_buffer, 512, format, ap);
3901 printf("printing debug string %s at %d %d\n", str_buffer,
3902 debug_cursor_x, debug_cursor_y);
3904 print_string(str_buffer, 0xFFFF, 0x0000, debug_cursor_x, debug_cursor_y);
3905 debug_cursor_x += FONT_WIDTH * str_buffer_length;
3908 void debug_screen_newline(u32 count)
3911 debug_cursor_y += FONT_HEIGHT * count;
3916 void debug_screen_printl(const char *format, ...)
3920 va_start(ap, format);
3921 debug_screen_printf(format, ap);
3922 debug_screen_printf("\n");
3927 #define video_savestate_builder(type) \
3928 void video_##type##_savestate(file_tag_type savestate_file) \
3930 file_##type##_array(savestate_file, affine_reference_x); \
3931 file_##type##_array(savestate_file, affine_reference_y); \
3934 video_savestate_builder(read);
3935 video_savestate_builder(write_mem);