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https://github.com/RaySollium99/picodrive.git
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giz renderers and stuff
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@261 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz
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9 changed files with 232 additions and 150 deletions
121
Pico/Draw.s
121
Pico/Draw.s
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@ -1758,51 +1758,43 @@ FinalizeLineRGB555:
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.if UNALIGNED_DRAWLINEDEST
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@ unaligned versions of loops
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@ warning: starts drawing 2bytes before dst
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.fl_RGB555u:
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ldr r12, [r1], #4
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ldr r7, [r1], #4
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and r4, lr, r12, lsl #1
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ldrh r4, [r3, r4]
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and r5, lr, r12, lsr #7
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ldrh r5, [r3, r5]
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strh r4, [r0], #2
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b .fl_loopRGB555u_enter
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sub r0, r0, #2 @ initial adjustment
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mov r8, #0
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.fl_loopRGB555u:
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ldr r12, [r1], #4
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ldr r7, [r1], #4
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and r4, lr, r12, lsl #1
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ldrh r4, [r3, r4]
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and r5, lr, r12, lsr #7
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ldrh r5, [r3, r5]
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orr r4, r8, r4, lsl #16
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str r4, [r0], #4
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.fl_loopRGB555u_enter:
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and r6, lr, r12, lsr #15
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and r6, lr, r12,lsl #1
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ldrh r6, [r3, r6]
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and r8, lr, r12, lsr #23
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and r5, lr, r12,lsr #7
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ldrh r5, [r3, r5]
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orr r4, r8, r6, lsl #16
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and r6, lr, r12,lsr #15
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ldrh r6, [r3, r6]
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and r8, lr, r12,lsr #23
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ldrh r8, [r3, r8]
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orr r4, r5, r6, lsl #16
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orr r5, r5, r6, lsl #16
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and r5, lr, r7, lsl #1
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ldrh r5, [r3, r5]
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and r6, lr, r7, lsr #7
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and r6, lr, r7, lsl #1
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ldrh r6, [r3, r6]
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orr r5, r8, r5, lsl #16
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and r12,lr, r7, lsr #15
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and r12,lr, r7, lsr #7
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ldrh r12,[r3, r12]
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and r8, lr, r7, lsr #23
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orr r6, r8, r6, lsl #16
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and r8, lr, r7, lsr #15
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ldrh r8, [r3, r8]
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orr r6, r6, r12,lsl #16
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and r7, lr, r7, lsr #23
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subs r2, r2, #1
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stmia r0!, {r4,r5,r6}
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orr r12,r12,r8, lsl #16
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ldrh r8, [r3, r7]
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stmia r0!, {r4,r5,r6,r12}
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bne .fl_loopRGB555u
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strh r8, [r0], #2
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@ -1812,70 +1804,67 @@ FinalizeLineRGB555:
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.fl_32scale_RGB555u:
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sub r0, r0, #2 @ initial adjustment
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mov r4, #0
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@ r9 f800 07e0 001f | e000 0780 001c | 3800 01e0 0007
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.fl_loop32scale_RGB555u:
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ldr r12, [r1], #4
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ldr r7, [r1], #4
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and r4, lr, r12,lsl #1
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ldrh r4, [r3, r4]
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and r6, lr, r12,lsl #1
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ldrh r6, [r3, r6]
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and r5, lr, r12,lsr #7
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ldrh r5, [r3, r5]
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and r4, r4, r9, lsl #2
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@ orr r4, rx, r4, lsl #16
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str r4, [r0], #4 @ pix_d -1, 0
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.fl_loop32scale_RGB555u_enter:
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and r4, r9, r4, lsr #2 @ r4=1/4 pix_s 0
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and r6, r6, r9, lsl #2
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orr r4, r4, r6, lsl #16 @ r4 = pix_d -1, 0
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and r5, r5, r9, lsl #2
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sub r6, r5, r5, lsr #2 @ r6 = 3/4 pix_s 1
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add r4, r6, r4, lsr #2 @ r4=(1/4 pix_s 0) + (3/4 pix_s 1)
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orr r4, r4, r5, lsl #15
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sub r8, r5, r5, lsr #2 @ r8 = 3/4 pix_s 1
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add r6, r8, r6, lsr #2 @ r6 = (1/4 pix_s 0) + (3/4 pix_s 1)
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orr r5, r6, r5, lsl #15
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and r6, lr, r12,lsr #15
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ldrh r6, [r3, r6]
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and r12,lr, r12,lsr #23
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ldrh r12,[r3, r12]
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and r6, r6, r9, lsl #2
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add r4, r4, r6, lsl #15 @ pix_d 1, 2
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add r5, r5, r6, lsl #15 @ r5 = pix_d 1, 2
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@@ TODO...
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mov r5, r5, lsr #1
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sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2
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orr r5, r5, r6, lsl #16
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and r6, lr, r7, lsl #1
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ldrh r6, [r3, r6]
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and r12,r12,r9, lsl #2
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add r5, r5, r12,lsl #14 @ pix_d 2, 3
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and r6, r6, r9, lsl #2
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orr r6, r12,r6, lsl #16 @ pix_d 4, 5
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and r12,lr, r7, lsr #7
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ldrh r12,[r3, r12]
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and r10,lr, r7, lsr #15
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and r8, lr, r7, lsl #1
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ldrh r8, [r3, r8]
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and r10,lr, r7, lsr #7
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ldrh r10,[r3, r10]
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and r12,r12,r9, lsl #2
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sub r8, r12,r12,lsr #2 @ r8 = 3/4 pix_s 1
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add r8, r8, r6, lsr #18
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sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2
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add r6, r6, r12,lsr #2
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orr r6, r6, r12,lsl #16 @ r6 = pix_d 3, 4
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and r8, r8, r9, lsl #2
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and r10,r10,r9, lsl #2
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sub r12,r10,r10,lsr #2 @ r12 = 3/4 pix_s 5
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orr r8, r8, r8, lsl #14
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add r8, r8, r12,lsl #16 @ r8 = pix_d 5, 6
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and r12,lr, r7, lsr #15
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ldrh r12,[r3, r12]
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and r7, lr, r7, lsr #23
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ldrh r7, [r3, r7]
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and r10,r10,r9, lsl #2
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orr r8, r8, r10,lsl #15
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add r8, r8, r12,lsl #15 @ pix_d 6, 7
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sub r10,r10,r10,lsr #2 @ r10= 3/4 pix_s 2
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and r12,r12,r9, lsl #2
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add r10,r10,r12
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mov r10,r10, lsr #1
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sub r12,r12,r12,lsr #2 @ r12 = 3/4 pix_s 6
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orr r10,r10,r12,lsl #16
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and r7, r7, r9, lsl #2
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add r10,r10,r7, lsr #2 @ += 1/4 pix_s 3
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orr r10,r10,r7, lsl #16 @ pix_d 8, 9
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add r10,r10,r7, lsl #14 @ r10 = pix_d 7, 8
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subs r2, r2, #1
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stmia r0!, {r4,r5,r6,r8,r10}
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mov r4, r7
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bne .fl_loop32scale_RGB555u
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strh r4, [r0], #2
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ldmfd sp!, {r9,r10}
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ldmfd sp!, {r4-r8,lr}
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bx lr
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