--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/painting/qdrawhelper_neon_asm.S Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,192 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/* Prevent the stack from becoming executable for no reason... */
+#if defined(__linux__) && defined(__ELF__)
+.section .note.GNU-stack,"",%progbits
+#endif
+
+.text
+.fpu neon
+.arch armv7a
+.altmacro
+
+/* void blend_8_pixels_argb32_on_rgb16_neon(quint16 *dst, const quint32 *src, int const_alpha) */
+
+ .func blend_8_pixels_argb32_on_rgb16_neon
+ .global blend_8_pixels_argb32_on_rgb16_neon
+ /* For ELF format also set function visibility to hidden */
+#ifdef __ELF__
+ .hidden blend_8_pixels_argb32_on_rgb16_neon
+ .type blend_8_pixels_argb32_on_rgb16_neon, %function
+#endif
+blend_8_pixels_argb32_on_rgb16_neon:
+ vld4.8 { d0, d1, d2, d3 }, [r1]
+ vld1.16 { d4, d5 }, [r0]
+
+ cmp r2, #256
+ beq .blend_32_inner
+
+ vdup.8 d6, r2
+
+ /* multiply by const_alpha */
+ vmull.u8 q8, d6, d0
+ vmull.u8 q9, d6, d1
+ vmull.u8 q10, d6, d2
+ vmull.u8 q11, d6, d3
+
+ vshrn.u16 d0, q8, #8
+ vshrn.u16 d1, q9, #8
+ vshrn.u16 d2, q10, #8
+ vshrn.u16 d3, q11, #8
+
+.blend_32_inner:
+ /* convert 8 r5g6b5 pixel data from {d4, d5} to planar 8-bit format
+ and put data into d6 - red, d7 - green, d30 - blue */
+ vshrn.u16 d6, q2, #8
+ vshrn.u16 d7, q2, #3
+ vsli.u16 q2, q2, #5
+ vsri.u8 d6, d6, #5
+ vmvn.8 d3, d3
+ vsri.u8 d7, d7, #6
+ vshrn.u16 d30, q2, #2
+
+ pld [r0, #128]
+
+ /* now do alpha blending, storing results in 8-bit planar format
+ into d16 - red, d19 - green, d18 - blue */
+ vmull.u8 q10, d3, d6
+ vmull.u8 q11, d3, d7
+ vmull.u8 q12, d3, d30
+ vrshr.u16 q13, q10, #8
+ vrshr.u16 q3, q11, #8
+ vrshr.u16 q15, q12, #8
+ vraddhn.u16 d20, q10, q13
+ vraddhn.u16 d23, q11, q3
+ vraddhn.u16 d22, q12, q15
+ vqadd.u8 d16, d2, d20
+ vqadd.u8 q9, q0, q11
+ /* convert the result to r5g6b5 and store it into {d28, d29} */
+ vshll.u8 q14, d16, #8
+ vshll.u8 q8, d19, #8
+ vshll.u8 q9, d18, #8
+ vsri.u16 q14, q8, #5
+ vsri.u16 q14, q9, #11
+
+ vst1.16 { d28, d29 }, [r0]
+
+ bx lr
+
+ .endfunc
+
+/* void blend_8_pixels_rgb16_on_rgb16_neon(quint16 *dst, const quint16 *src, int const_alpha) */
+
+ .func blend_8_pixels_rgb16_on_rgb16_neon
+ .global blend_8_pixels_rgb16_on_rgb16_neon
+ /* For ELF format also set function visibility to hidden */
+#ifdef __ELF__
+ .hidden blend_8_pixels_rgb16_on_rgb16_neon
+ .type blend_8_pixels_rgb16_on_rgb16_neon, %function
+#endif
+blend_8_pixels_rgb16_on_rgb16_neon:
+ vld1.16 { d0, d1 }, [r0]
+ vld1.16 { d2, d3 }, [r1]
+
+ rsb r3, r2, #256
+ vdup.8 d4, r2
+ vdup.8 d5, r3
+
+ /* convert 8 r5g6b5 pixel data from {d0, d1} to planar 8-bit format
+ and put data into d6 - red, d7 - green, d30 - blue */
+ vshrn.u16 d6, q0, #8
+ vshrn.u16 d7, q0, #3
+ vsli.u16 q0, q0, #5
+ vsri.u8 d6, d6, #5
+ vsri.u8 d7, d7, #6
+ vshrn.u16 d30, q0, #2
+
+ /* same from {d2, d3} into {d26, d27, d28} */
+ vshrn.u16 d26, q1, #8
+ vshrn.u16 d27, q1, #3
+ vsli.u16 q1, q1, #5
+ vsri.u8 d26, d26, #5
+ vsri.u8 d27, d27, #6
+ vshrn.u16 d28, q1, #2
+
+ /* multiply dst by inv const_alpha */
+ vmull.u8 q10, d5, d6
+ vmull.u8 q11, d5, d7
+ vmull.u8 q12, d5, d30
+
+ vshrn.u16 d6, q10, #8
+ vshrn.u16 d7, q11, #8
+ vshrn.u16 d30, q12, #8
+
+ /* multiply src by const_alpha */
+ vmull.u8 q10, d4, d26
+ vmull.u8 q11, d4, d27
+ vmull.u8 q12, d4, d28
+
+ vshrn.u16 d26, q10, #8
+ vshrn.u16 d27, q11, #8
+ vshrn.u16 d28, q12, #8
+
+ /* preload dst + 128 */
+ pld [r0, #128]
+
+ /* add components, storing results in 8-bit planar format
+ into d16 - red, d19 - green, d18 - blue */
+ vadd.u8 d16, d26, d6
+ vadd.u8 d19, d27, d7
+ vadd.u8 d18, d28, d30
+
+ /* convert the result to r5g6b5 and store it into {d28, d29} */
+ vshll.u8 q14, d16, #8
+ vshll.u8 q8, d19, #8
+ vshll.u8 q9, d18, #8
+ vsri.u16 q14, q8, #5
+ vsri.u16 q14, q9, #11
+
+ vst1.16 { d28, d29 }, [r0]
+
+ bx lr
+
+ .endfunc