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sms, add fast renderer, remove 1st column (8 px) if blanked

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kub 2022-09-21 23:26:48 +00:00
parent 23e4719638
commit 96948bdfc8
15 changed files with 454 additions and 181 deletions
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5
platform/common/arm_utils.h
View file

@ -2,8 +2,9 @@
void bgr444_to_rgb32(void *to, void *from, unsigned entries);
void bgr444_to_rgb32_sh(void *to, void *from);
void vidcpy_m2(void *dest, void *src, int m32col, int with_32c_border);
void vidcpy_m2_rot(void *dest, void *src, int m32col, int with_32c_border);
void vidcpy_8bit(void *dest, void *src, int x_y, int w_h);
void vidcpy_8bit_rot(void *dest, void *src, int x_y, int w_h);
void spend_cycles(int c); // utility
void rotated_blit8 (void *dst, void *linesx4, int y, int is_32col);

158
platform/common/arm_utils.s
View file

@ -124,72 +124,138 @@ bgr444_to_rgb32_sh:
@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ mode2 blitter
.global vidcpy_m2 @ void *dest, void *src, int m32col, int with_32c_border
vidcpy_m2:
.global vidcpy_8bit @ void *dest, void *src, int x_y, int w_h
vidcpy_8bit:
stmfd sp!, {r4-r6,lr}
mov r12, #224 @ lines
add r0, r0, #320*8
mov r12, r2, lsl #16 @ y
mov r4, r12, lsr #16-8 @ 320*y = 256*y+64*y
add r4, r4, r12, lsr #16-6
add r0, r0, r4 @ pd += 320*y + x
add r0, r0, r2, lsr #16
add r4, r4, r12, lsr #16-3 @ 328*y = 320*y + 8*y
add r1, r1, r4 @ ps += 328*y + x + 8
add r1, r1, r2, lsr #16
add r1, r1, #8
mov lr, #0
tst r2, r2
movne lr, #64
tstne r3, r3
addne r0, r0, #32
addne r1, r1, #32
mov lr, r3, lsr #16 @ w
mov r12, r3, lsl #16 @ h
vidCpyM2_loop_out:
mov r6, #10
sub r6, r6, lr, lsr #5 @ -= 2 in 32col mode
vidCpyM2_loop:
vidCpy8bit_loop_out:
lsrs r6, lr, #5
@ beq vidCpy8bit_loop_end
vidCpy8bit_loop:
subs r6, r6, #1
ldmia r1!, {r2-r5}
stmia r0!, {r2-r5}
ldmia r1!, {r2-r5}
stmia r0!, {r2-r5}
bne vidCpyM2_loop
bne vidCpy8bit_loop
subs r12,r12,#1
add r0, r0, lr
add r1, r1, #8
add r1, r1, lr
bne vidCpyM2_loop_out
ands r6, lr, #0x0018
beq vidCpy8bit_loop_end
vidCpy8bit_loop2:
ldmia r1!, {r2-r3}
subs r6, r6, #8
stmia r0!, {r2-r3}
bne vidCpy8bit_loop2
vidCpy8bit_loop_end:
subs r12,r12,#1<<16
add r0, r0, #320
sub r0, r0, lr
add r1, r1, #328
sub r1, r1, lr
bne vidCpy8bit_loop_out
ldmfd sp!, {r4-r6,pc}
.global vidcpy_m2_rot @ void *dest, void *src, int m32col, int with_32c_border
vidcpy_m2_rot:
stmfd sp!,{r4-r8,lr}
.global vidcpy_8bit_rot @ void *dest, void *src, int x_y, int w_h
vidcpy_8bit_rot:
stmfd sp!, {r4-r10,lr}
mov r12, r2, lsl #16 @ y
add r0, r0, r12, lsr #16 @ pd += y + (319-x)*240
mov r4, #320
sub r4, r4, #1
sub r4, r4, r2, lsr #16 @ (319-x)
add r0, r0, r4, lsl #8
sub r0, r0, r4, lsl #4
mov r4, r12, lsr #16-8 @ 328*y = 256*y + 64*y + 8*y
add r4, r4, r12, lsr #16-6
add r4, r4, r12, lsr #16-3
add r1, r1, r4 @ ps += 328*y + x + 8
add r1, r1, r2, lsr #16
add r1, r1, #8
tst r2, r2
subne r1, r1, #32 @ adjust
mov r4, r0
mov r5, r1
mov r6, r2
mov r7, #8+4
mov lr, r3, lsr #16 @ w
mov r12, r3, lsl #16 @ h
vidcpy_m2_rot_loop:
@ a bit lame but oh well..
mov r0, r4
mov r1, r5
mov r2, r7
mov r3, r6
mov r8, #328
adr lr, after_rot_blit8
stmfd sp!,{r4-r8,lr}
b rotated_blit8_2
vidCpy8bitrot_loop_out:
mov r10, r0
lsrs r9, lr, #2
@ beq vidCpy8bitrot_loop_end
vidCpy8bitrot_loop:
mov r6, r1
ldr r2, [r6], r8
ldr r3, [r6], r8
ldr r4, [r6], r8
ldr r5, [r6], r8
after_rot_blit8:
add r5, r5, #328*4
add r7, r7, #4
cmp r7, #224+8+4
ldmgefd sp!,{r4-r8,pc}
b vidcpy_m2_rot_loop
mov r6, r2, lsl #24
mov r6, r6, lsr #8
orr r6, r6, r3, lsl #24
mov r6, r6, lsr #8
orr r6, r6, r4, lsl #24
mov r6, r6, lsr #8
orr r6, r6, r5, lsl #24
str r6, [r0], #-240
and r6, r3, #0xff00
and r7, r2, #0xff00
orr r6, r6, r7, lsr #8
and r7, r4, #0xff00
orr r6, r6, r7, lsl #8
and r7, r5, #0xff00
orr r6, r6, r7, lsl #16
str r6, [r0], #-240
and r6, r4, #0xff0000
and r7, r2, #0xff0000
orr r6, r6, r7, lsr #16
and r7, r3, #0xff0000
orr r6, r6, r7, lsr #8
and r7, r5, #0xff0000
orr r6, r6, r7, lsl #8
str r6, [r0], #-240
mov r6, r5, lsr #24
mov r6, r6, lsl #8
orr r6, r6, r4, lsr #24
mov r6, r6, lsl #8
orr r6, r6, r3, lsr #24
mov r6, r6, lsl #8
orr r6, r6, r2, lsr #24
str r6, [r0], #-240
subs r9, r9, #1
add r1, r1, #4
bne vidCpy8bitrot_loop
vidCpy8bitrot_loop_end:
subs r12,r12,#4<<16
add r0, r10, #4
sub r1, r1, lr
add r1, r1, #4*328
bne vidCpy8bitrot_loop_out
ldmfd sp!, {r4-r10,pc}
.global rotated_blit8 @ void *dst, void *linesx4, u32 y, int is_32col

13
platform/common/menu_pico.c
View file

@ -146,12 +146,6 @@ static void copy_bg(int dir)
}
}
static void menu_enter(int is_rom_loaded)
{
plat_video_menu_enter(is_rom_loaded);
menu_w = menu_h = 0;
}
static void menu_draw_prep(void)
{
if (menu_w == g_menuscreen_w && menu_h == g_menuscreen_h)
@ -198,6 +192,13 @@ static void draw_savestate_bg(int slot)
PicoTmpStateRestore(tmp_state);
}
static void menu_enter(int is_rom_loaded)
{
plat_video_menu_enter(is_rom_loaded);
menu_w = menu_h = 0;
menu_draw_prep();
}
// --------- loading ROM screen ----------
static int cdload_called = 0;