addeq r0, r0, #32*2\r
\r
.fl_no32colRGB555:\r
-.fl_loopRGB555:\r
\r
+.if UNALIGNED_DRAWLINEDEST\r
+ @ this is basically for Gizmondo, which has unaligned odd lines in the framebuffer\r
+ tst r0, #2\r
+ bne .fl_RGB555u\r
+.endif\r
+\r
+.fl_loopRGB555:\r
ldr r12, [r1], #4\r
ldr r7, [r1], #4\r
\r
ldrh r6, [r3, r6]\r
and r12,lr, r7, lsr #15\r
ldrh r12,[r3, r12]\r
+ and r7, lr, r7, lsr #23\r
+ ldrh r7, [r3, r7]\r
orr r8, r8, r6, lsl #16\r
\r
- and r6, lr, r7, lsr #23\r
- ldrh r6, [r3, r6] @ 1 cycle interlock here (r6)\r
subs r2, r2, #1\r
- orr r12,r12, r6, lsl #16\r
+ orr r12,r12, r7, lsl #16\r
\r
stmia r0!, {r4,r5,r8,r12}\r
bne .fl_loopRGB555\r
mov r9, #0x3900 @ f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r
orr r9, r9, #0x00e7\r
\r
+.if UNALIGNED_DRAWLINEDEST\r
+ tst r0, #2\r
+ bne .fl_32scale_RGB555u\r
+.endif\r
+\r
.fl_loop32scale_RGB555:\r
ldr r12, [r1], #4\r
ldr r7, [r1], #4\r
ldmfd sp!, {r4-r8,lr}\r
bx lr\r
\r
+.if UNALIGNED_DRAWLINEDEST\r
+ @ unaligned versions of loops\r
+\r
+.fl_RGB555u:\r
+ ldr r12, [r1], #4\r
+ ldr r7, [r1], #4\r
+\r
+ and r4, lr, r12, lsl #1\r
+ ldrh r4, [r3, r4]\r
+ and r5, lr, r12, lsr #7\r
+ ldrh r5, [r3, r5]\r
+ strh r4, [r0], #2\r
+ b .fl_loopRGB555u_enter\r
+\r
+.fl_loopRGB555u:\r
+ ldr r12, [r1], #4\r
+ ldr r7, [r1], #4\r
+\r
+ and r4, lr, r12, lsl #1\r
+ ldrh r4, [r3, r4]\r
+ and r5, lr, r12, lsr #7\r
+ ldrh r5, [r3, r5]\r
+\r
+ orr r4, r8, r4, lsl #16\r
+ str r4, [r0], #4\r
+\r
+.fl_loopRGB555u_enter:\r
+ and r6, lr, r12, lsr #15\r
+ ldrh r6, [r3, r6]\r
+ and r8, lr, r12, lsr #23\r
+ ldrh r8, [r3, r8]\r
+ orr r4, r5, r6, lsl #16\r
+\r
+ and r5, lr, r7, lsl #1\r
+ ldrh r5, [r3, r5]\r
+ and r6, lr, r7, lsr #7\r
+ ldrh r6, [r3, r6]\r
+ orr r5, r8, r5, lsl #16\r
+\r
+ and r12,lr, r7, lsr #15\r
+ ldrh r12,[r3, r12]\r
+ and r8, lr, r7, lsr #23\r
+ ldrh r8, [r3, r8]\r
+ orr r6, r6, r12,lsl #16\r
+\r
+ subs r2, r2, #1\r
+ stmia r0!, {r4,r5,r6}\r
+ bne .fl_loopRGB555u\r
+\r
+ strh r8, [r0], #2\r
+\r
+ ldmfd sp!, {r4-r8,lr}\r
+ bx lr\r
+\r
+\r
+.fl_32scale_RGB555u:\r
+\r
+ @ r9 f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r
+.fl_loop32scale_RGB555u:\r
+ ldr r12, [r1], #4\r
+ ldr r7, [r1], #4\r
+\r
+ and r4, lr, r12,lsl #1\r
+ ldrh r4, [r3, r4]\r
+ and r5, lr, r12,lsr #7\r
+ ldrh r5, [r3, r5]\r
+ and r4, r4, r9, lsl #2\r
+@ orr r4, rx, r4, lsl #16\r
+ str r4, [r0], #4 @ pix_d -1, 0\r
+\r
+.fl_loop32scale_RGB555u_enter:\r
+ and r4, r9, r4, lsr #2 @ r4=1/4 pix_s 0\r
+\r
+ and r5, r5, r9, lsl #2\r
+ sub r6, r5, r5, lsr #2 @ r6 = 3/4 pix_s 1\r
+ add r4, r6, r4, lsr #2 @ r4=(1/4 pix_s 0) + (3/4 pix_s 1)\r
+ orr r4, r4, r5, lsl #15\r
+\r
+ and r6, lr, r12,lsr #15\r
+ ldrh r6, [r3, r6]\r
+ and r12,lr, r12,lsr #23\r
+ ldrh r12,[r3, r12]\r
+ and r6, r6, r9, lsl #2\r
+ add r4, r4, r6, lsl #15 @ pix_d 1, 2\r
+\r
+@@ TODO...\r
+\r
+ mov r5, r5, lsr #1\r
+ sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2\r
+ orr r5, r5, r6, lsl #16\r
+\r
+ and r6, lr, r7, lsl #1\r
+ ldrh r6, [r3, r6]\r
+ and r12,r12,r9, lsl #2\r
+ add r5, r5, r12,lsl #14 @ pix_d 2, 3\r
+ and r6, r6, r9, lsl #2\r
+ orr r6, r12,r6, lsl #16 @ pix_d 4, 5\r
+\r
+ and r12,lr, r7, lsr #7\r
+ ldrh r12,[r3, r12]\r
+ and r10,lr, r7, lsr #15\r
+ ldrh r10,[r3, r10]\r
+ and r12,r12,r9, lsl #2\r
+ sub r8, r12,r12,lsr #2 @ r8 = 3/4 pix_s 1\r
+ add r8, r8, r6, lsr #18\r
+ and r7, lr, r7, lsr #23\r
+ ldrh r7, [r3, r7]\r
+ and r10,r10,r9, lsl #2\r
+ orr r8, r8, r10,lsl #15\r
+ add r8, r8, r12,lsl #15 @ pix_d 6, 7\r
+ sub r10,r10,r10,lsr #2 @ r10= 3/4 pix_s 2\r
+ and r7, r7, r9, lsl #2\r
+ add r10,r10,r7, lsr #2 @ += 1/4 pix_s 3\r
+ orr r10,r10,r7, lsl #16 @ pix_d 8, 9\r
+\r
+ subs r2, r2, #1\r
+\r
+ stmia r0!, {r4,r5,r6,r8,r10}\r
+ bne .fl_loop32scale_RGB555u\r
+\r
+ ldmfd sp!, {r9,r10}\r
+ ldmfd sp!, {r4-r8,lr}\r
+ bx lr\r
+\r
+.endif @ UNALIGNED_DRAWLINEDEST\r
+\r
\r
@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r
\r
notaz.gp2x.de / picodrive.git / blobdiff