Merge tag 'android-11.0.0_r16' into android-10.0
Android 11.0.0 release 16 - twrp bringup patch
diff --git a/libpixelflinger/arch-mips/col32cb16blend.S b/libpixelflinger/arch-mips/col32cb16blend.S
new file mode 100644
index 0000000..810294c
--- /dev/null
+++ b/libpixelflinger/arch-mips/col32cb16blend.S
@@ -0,0 +1,134 @@
+/*
+** Copyright 2015, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+** http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+ .macro pixel dreg src f sR sG sB shift
+
+#if __mips==32 && __mips_isa_rev>=2
+ /* extract red */
+ ext $t4,\src,\shift+11,5
+ mul $t4,$t4,\f
+
+ /* extract green */
+ ext $t5,\src,\shift+5,6
+ mul $t5,$t5,\f
+
+ /* extract blue */
+ ext $t6,\src,\shift,5
+ mul $t6,$t6,\f
+#else
+ /* extract red */
+ srl $t4,\src,\shift+11
+ andi $t4, 0x1f
+ mul $t4,$t4,\f
+
+ /* extract green */
+ srl $t5,\src,\shift+5
+ andi $t5, 0x3f
+ mul $t5,$t5,\f
+
+ /* extract blue */
+ srl $t6,\src,\shift
+ andi $t6, 0x1f
+ mul $t6,$t6,\f
+#endif
+
+ srl $t4,$t4,8
+ srl $t5,$t5,8
+ srl $t6,$t6,8
+ addu $t4,$t4,\sR
+ addu $t5,$t5,\sG
+ addu \dreg,$t6,\sB
+ sll $t4,$t4,11
+ sll $t5,$t5,5
+ or \dreg,\dreg,$t4
+ or \dreg,\dreg,$t5
+ andi \dreg, 0xffff
+ .endm
+
+ .text
+ .balign 4
+
+ .global scanline_col32cb16blend_mips
+ .ent scanline_col32cb16blend_mips
+scanline_col32cb16blend_mips:
+
+ /* check if count is zero */
+ srl $v0,$a1,24 /* sA */
+ beqz $a2,done
+ li $t4, 0x100
+ srl $v1,$v0,7
+ addu $v0,$v1,$v0
+ subu $v0,$t4,$v0 /* f */
+#if __mips==32 && __mips_isa_rev>=2
+ ext $a3,$a1,3,5 /* sR */
+ ext $t0,$a1,10,6 /* sG */
+ ext $t1,$a1,19,5 /* sB */
+#else
+ srl $a3, $a1, 3
+ andi $a3, 0x1f /* sR */
+ srl $t0, $a1, 10
+ andi $t0, 0x3f /* sG */
+ srl $t1, $a1, 19
+ andi $t1, 0x1f /* sB */
+#endif
+
+ /* check if cnt is at least 4 */
+ addiu $a2,$a2,-4
+ bltz $a2,tail
+
+loop_4pixels:
+ lw $t7,0($a0)
+ lw $t8,4($a0)
+ addiu $a0,$a0,8
+ addiu $a2,$a2,-4
+ pixel $t2 $t7 $v0 $a3 $t0 $t1 0
+ pixel $t3 $t7 $v0 $a3 $t0 $t1 16
+#if __mips==32 && __mips_isa_rev>=2
+ ins $t2,$t3,16,16
+#else
+ sll $t3, 16
+ or $t2, $t2, $t3
+#endif
+ pixel $t7 $t8 $v0 $a3 $t0 $t1 0
+ pixel $t3 $t8 $v0 $a3 $t0 $t1 16
+#if __mips==32 && __mips_isa_rev>=2
+ ins $t7,$t3,16,16
+#else
+ sll $t3, 16
+ or $t7, $t7, $t3
+#endif
+ sw $t2,-8($a0)
+ sw $t7,-4($a0)
+ bgez $a2, loop_4pixels
+
+tail:
+ /* the pixel count underran, restore it now */
+ addiu $a2,$a2,4
+
+ /* handle the last 0..3 pixels */
+ beqz $a2,done
+
+loop_1pixel:
+ lhu $t7,0($a0)
+ addiu $a0,$a0,2
+ addiu $a2,$a2,-1
+ pixel $t2 $t7 $v0 $a3 $t0 $t1 0
+ sh $t2, -2($a0)
+ bnez $a2,loop_1pixel
+
+done:
+ j $ra
+ .end scanline_col32cb16blend_mips