[cairo] [PATCH] Added MIPS32R2 and MIPS DSP ASE optimized functions.
Georgi Beloev
gb at beloev.net
Wed Dec 1 14:59:41 PST 2010
Please note -- the following Pixman patch has been updated to reflect comments received after an earlier submission. It was tested successfully on real hardware with Pixman 0.21.2.
From 9ecf61f2072d8f51f845b086686380ff3c34f861 Mon Sep 17 00:00:00 2001
From: Georgi Beloev <gb at beloev.net>
Date: Wed, 1 Dec 2010 14:34:06 -0800
Subject: [PATCH] Added MIPS32R2 and MIPS DSP ASE optimized functions.
The following functions were implemented for MIPS32R2:
- pixman_fill32()
- fast_composite_over_n_8_8888()
The following functions were implemented for MIPS DSP ASE:
- combine_over_u()
- fast_composite_over_n_8_8888()
Additionally, MIPS DSP ASE uses the MIPS32R2 pixman_fill32() function.
Use configure commands similar to the ones below to select the target
processor and, correspondingly, the target instruction set:
- MIPS32R2: configure CFLAGS='-march=24kc -O2'
- MIPS DSP ASE: configure CFLAGS='-march=24kec -O2'
---
configure.ac | 63 +++++++++++
pixman/Makefile.am | 22 ++++
pixman/pixman-cpu.c | 37 ++++++-
pixman/pixman-mips-dspase1-asm.S | 221 ++++++++++++++++++++++++++++++++++++++
pixman/pixman-mips-dspase1.c | 128 ++++++++++++++++++++++
pixman/pixman-mips32r2-asm.S | 209 +++++++++++++++++++++++++++++++++++
pixman/pixman-mips32r2.c | 138 ++++++++++++++++++++++++
pixman/pixman-private.h | 11 ++
8 files changed, 824 insertions(+), 5 deletions(-)
create mode 100644 pixman/pixman-mips-dspase1-asm.S
create mode 100644 pixman/pixman-mips-dspase1.c
create mode 100644 pixman/pixman-mips32r2-asm.S
create mode 100644 pixman/pixman-mips32r2.c
diff --git a/configure.ac b/configure.ac
index 77cd3f8..058d48b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -565,6 +565,69 @@ fi
AM_CONDITIONAL(USE_GCC_INLINE_ASM, test $have_gcc_inline_asm = yes)
+dnl ==========================================================================
+dnl Check if the compiler supports MIPS32R2 instructions
+
+AC_MSG_CHECKING(whether to use MIPS32R2 instructions)
+AC_COMPILE_IFELSE([[
+void test()
+{
+ asm("ext \$v0,\$a0,8,8");
+}
+]], have_mips32r2=yes, have_mips32r2=no)
+
+AC_ARG_ENABLE(mips32r2,
+ [AC_HELP_STRING([--disable-mips32r2],
+ [disable MIPS32R2 fast paths])],
+ [enable_mips32r2=$enableval], [enable_mips32r2=auto])
+
+if test $enable_mips32r2 = no ; then
+ have_mips32r2=disabled
+fi
+
+if test $have_mips32r2 = yes ; then
+ AC_DEFINE(USE_MIPS32R2, 1, [use MIPS32R2 optimizations])
+fi
+
+AM_CONDITIONAL(USE_MIPS32R2, test $have_mips32r2 = yes)
+
+AC_MSG_RESULT($have_mips32r2)
+if test $enable_mips32r2 = yes && test $have_mips32r2 = no ; then
+ AC_MSG_ERROR([MIPS32R2 not detected])
+fi
+
+
+dnl ==========================================================================
+dnl Check if the compiler supports MIPS DSP ASE Rev 1 instructions
+
+AC_MSG_CHECKING(whether to use MIPS DSP ASE Rev 1 instructions)
+AC_COMPILE_IFELSE([[
+void test()
+{
+ asm("addu.qb \$v0,\$a0,\$a1");
+}
+]], have_mips_dspase1=yes, have_mips_dspase1=no)
+
+AC_ARG_ENABLE(mips-dspase1,
+ [AC_HELP_STRING([--disable-mips-dspase1],
+ [disable MIPS DSP ASE Rev 1 fast paths])],
+ [enable_mips_dspase1=$enableval], [enable_mips_dspase1=auto])
+
+if test $enable_mips_dspase1 = no ; then
+ have_mips_dspase1=disabled
+fi
+
+if test $have_mips_dspase1 = yes ; then
+ AC_DEFINE(USE_MIPS_DSPASE1, 1, [use MIPS DSP ASE Rev 1 optimizations])
+fi
+
+AM_CONDITIONAL(USE_MIPS_DSPASE1, test $have_mips_dspase1 = yes)
+
+AC_MSG_RESULT($have_mips_dspase1)
+if test $enable_mips_dspase1 = yes && test $have_mips_dspase1 = no ; then
+ AC_MSG_ERROR([MIPS DSP ASE Rev 1 not detected])
+fi
+
dnl ==============================================
dnl Timers
diff --git a/pixman/Makefile.am b/pixman/Makefile.am
index ca31301..d832db1 100644
--- a/pixman/Makefile.am
+++ b/pixman/Makefile.am
@@ -123,5 +123,27 @@ libpixman_1_la_LIBADD += libpixman-arm-neon.la
ASM_CFLAGS_arm_neon=
endif
+# MIPS32R2
+if USE_MIPS32R2
+noinst_LTLIBRARIES += libpixman-mips32r2.la
+libpixman_mips32r2_la_SOURCES = \
+ pixman-mips32r2.c \
+ pixman-mips32r2-asm.S
+libpixman_mips32r2_la_CFLAGS = $(DEP_CFLAGS)
+libpixman_mips32r2_la_LIBADD = $(DEP_LIBS)
+libpixman_1_la_LIBADD += libpixman-mips32r2.la
+endif
+
+# MIPS DSP ASE Rev 1
+if USE_MIPS_DSPASE1
+noinst_LTLIBRARIES += libpixman-mips-dspase1.la
+libpixman_mips_dspase1_la_SOURCES = \
+ pixman-mips-dspase1.c \
+ pixman-mips-dspase1-asm.S
+libpixman_mips_dspase1_la_CFLAGS = $(DEP_CFLAGS)
+libpixman_mips_dspase1_la_LIBADD = $(DEP_LIBS)
+libpixman_1_la_LIBADD += libpixman-mips-dspase1.la
+endif
+
.c.s : $(libpixmaninclude_HEADERS) $(BUILT_SOURCES)
$(CC) $(CFLAGS) $(ASM_CFLAGS_$(@:pixman-%.s=%)) $(ASM_CFLAGS_$(@:pixman-arm-%.s=arm_%)) -DHAVE_CONFIG_H -I$(srcdir) -I$(builddir) -I$(top_builddir) -S -o $@ $<
diff --git a/pixman/pixman-cpu.c b/pixman/pixman-cpu.c
index e4fb1e4..9d2f3f3 100644
--- a/pixman/pixman-cpu.c
+++ b/pixman/pixman-cpu.c
@@ -568,29 +568,56 @@ pixman_have_sse2 (void)
#endif /* __amd64__ */
#endif
+#ifdef USE_MIPS32R2
+/* note: no runtime check for MIPS32R2 support */
+#define pixman_have_mips32r2() TRUE
+#endif
+
+#ifdef USE_MIPS_DSPASE1
+/* note: no runtime check for MIPS DSP ASE Rev 1 support */
+#define pixman_have_mips_dspase1() TRUE
+#endif
+
+
pixman_implementation_t *
_pixman_choose_implementation (void)
{
+ pixman_implementation_t *imp = NULL;
+
#ifdef USE_SSE2
if (pixman_have_sse2 ())
- return _pixman_implementation_create_sse2 ();
+ return _pixman_implementation_create_sse2 ();
#endif
#ifdef USE_MMX
if (pixman_have_mmx ())
- return _pixman_implementation_create_mmx ();
+ return _pixman_implementation_create_mmx ();
#endif
#ifdef USE_ARM_NEON
if (pixman_have_arm_neon ())
- return _pixman_implementation_create_arm_neon ();
+ return _pixman_implementation_create_arm_neon ();
#endif
#ifdef USE_ARM_SIMD
if (pixman_have_arm_simd ())
- return _pixman_implementation_create_arm_simd ();
+ return _pixman_implementation_create_arm_simd ();
#endif
#ifdef USE_VMX
if (pixman_have_vmx ())
- return _pixman_implementation_create_vmx ();
+ return _pixman_implementation_create_vmx ();
+#endif
+
+#if defined (USE_MIPS32R2) && defined (USE_MIPS_DSPASE1)
+ /* DSPASE1 version uses some MIPS32R2 functions; both need to be enabled */
+ if (pixman_have_mips32r2 () && pixman_have_mips_dspase1 ())
+ {
+ imp = _pixman_implementation_create_mips32r2 (NULL);
+ return _pixman_implementation_create_mips_dspase1 (imp);
+ }
+#endif
+
+#ifdef USE_MIPS32R2
+ if (pixman_have_mips32r2 ())
+ return _pixman_implementation_create_mips32r2 (NULL);
#endif
return _pixman_implementation_create_fast_path ();
diff --git a/pixman/pixman-mips-dspase1-asm.S b/pixman/pixman-mips-dspase1-asm.S
new file mode 100644
index 0000000..53d777d
--- /dev/null
+++ b/pixman/pixman-mips-dspase1-asm.S
@@ -0,0 +1,221 @@
+/*
+ * Copyright 2010, MIPS Technologies
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+
+#ifndef _ABIO32
+#error This code works with the MIPS o32 ABI!
+#endif
+
+
+ .text
+ .set noreorder
+ .set nomacro
+
+
+/***************************************************************************
+void
+mips_dspase1_combine_over_u_nomask (uint32_t *dest, const uint32_t *src,
+ const uint32_t *mask, int width)
+***************************************************************************/
+
+ .global mips_dspase1_combine_over_u_nomask
+ .ent mips_dspase1_combine_over_u_nomask
+
+/* note: this version to be used only when mask = NULL */
+
+mips_dspase1_combine_over_u_nomask:
+ beqz $a3, 1f
+ subu $v0, $a1, $a0 /* diff = src - dest (for LWX) */
+
+ sll $a3, $a3, 2 /* width <<= 2 */
+ addu $a3, $a0, $a3 /* dest_end = dest + width */
+
+ lw $t0, 0($a0) /* dest */
+ lwx $t1, $v0($a0) /* src (dest + diff) */
+
+ li $t9, 0x00800080
+
+0:
+ not $t2, $t1 /* ~src */
+ srl $t2, $t2, 24 /* ALPHA_8(~src) */
+ ins $t2, $t2, 16, 8 /* 0:a:0:a; equivalent to replv.ph */
+
+ muleu_s.ph.qbl $t3, $t0, $t2
+ muleu_s.ph.qbr $t4, $t0, $t2
+
+ lw $t0, 4($a0) /* dest[1] for next loop iteration */
+ addiu $a0, $a0, 4 /* dest++ */
+
+ addu $t3, $t3, $t9 /* can't overflow; rev2: addu_s.ph */
+ addu $t4, $t4, $t9 /* can't overflow; rev2: addu_s.ph */
+ preceu.ph.qbla $t5, $t3 /* rev2: shrl.ph */
+ preceu.ph.qbla $t6, $t4 /* rev2: shrl.ph */
+ addu $t3, $t3, $t5 /* can't overflow; rev2: addu_s.ph */
+ addu $t4, $t4, $t6 /* can't overflow; rev2: addu_s.ph */
+
+ precrq.qb.ph $t3, $t3, $t4
+ addu_s.qb $t3, $t3, $t1
+
+ lwx $t1, $v0($a0) /* src (dest + diff) for next loop iteration */
+
+ bne $a0, $a3, 0b
+ sw $t3, -4($a0) /* dest */
+
+1:
+ jr $ra
+ nop
+
+ .end mips_dspase1_combine_over_u_nomask
+
+
+/***************************************************************************
+void
+mips_dspase1_combine_over_u_mask (uint32_t *dest, const uint32_t *src,
+ const uint32_t *mask, int width)
+***************************************************************************/
+
+ .global mips_dspase1_combine_over_u_mask
+ .ent mips_dspase1_combine_over_u_mask
+
+/* note: this version to be used only when mask != NULL */
+
+mips_dspase1_combine_over_u_mask:
+ beqz $a3, 1f
+ subu $v0, $a1, $a0 /* sdiff = src - dest (for LWX) */
+
+ subu $v1, $a2, $a0 /* mdiff = mask - dest (for LWX) */
+
+ sll $a3, $a3, 2 /* width <<= 2 */
+ addu $a3, $a0, $a3 /* dest_end = dest + width */
+
+ li $t9, 0x00800080
+
+0:
+ lwx $t8, $v1($a0) /* mask (dest + mdiff) */
+ lwx $t1, $v0($a0) /* src (dest + sdiff) */
+
+ srl $t8, $t8, 24 /* mask >>= A_SHIFT */
+ ins $t8, $t8, 16, 8 /* 0:m:0:m; equivalent to replv.ph */
+
+ muleu_s.ph.qbl $t3, $t1, $t8
+ muleu_s.ph.qbr $t4, $t1, $t8
+
+ lw $t0, 0($a0) /* dest */
+
+ addu $t3, $t3, $t9 /* can't overflow; rev2: addu_s.ph */
+ addu $t4, $t4, $t9 /* can't overflow; rev2: addu_s.ph */
+ preceu.ph.qbla $t5, $t3 /* rev2: shrl.ph */
+ preceu.ph.qbla $t6, $t4 /* rev2: shrl.ph */
+ addu $t3, $t3, $t5 /* can't overflow; rev2: addu_s.ph */
+ addu $t4, $t4, $t6 /* can't overflow; rev2: addu_s.ph */
+ precrq.qb.ph $t1, $t3, $t4
+
+ not $t2, $t1 /* ~src */
+ srl $t2, $t2, 24 /* ALPHA_8(~src) */
+ ins $t2, $t2, 16, 8 /* 0:a:0:a; equivalent to replv.ph */
+
+ muleu_s.ph.qbl $t3, $t0, $t2
+ muleu_s.ph.qbr $t4, $t0, $t2
+
+ addiu $a0, $a0, 4 /* dest++ */
+
+ addu $t3, $t3, $t9 /* can't overflow; rev2: addu_s.ph */
+ addu $t4, $t4, $t9 /* can't overflow; rev2: addu_s.ph */
+ preceu.ph.qbla $t5, $t3 /* rev2: shrl.ph */
+ preceu.ph.qbla $t6, $t4 /* rev2: shrl.ph */
+ addu $t3, $t3, $t5 /* can't overflow; rev2: addu_s.ph */
+ addu $t4, $t4, $t6 /* can't overflow; rev2: addu_s.ph */
+ precrq.qb.ph $t3, $t3, $t4
+ addu_s.qb $t3, $t3, $t1
+
+ bne $a0, $a3, 0b
+ sw $t3, -4($a0) /* dest */
+
+1:
+ jr $ra
+ nop
+
+ .end mips_dspase1_combine_over_u_mask
+
+
+/***************************************************************************
+void
+mips_dspase1_composite_over_n_8_8888_inner (uint32_t *dest, const uint32_t src,
+ const uint8_t *mask, int width)
+***************************************************************************/
+
+ .global mips_dspase1_composite_over_n_8_8888_inner
+ .ent mips_dspase1_composite_over_n_8_8888_inner
+
+mips_dspase1_composite_over_n_8_8888_inner:
+ beqz $a3, 1f
+ sll $a3, $a3, 2 /* width <<= 2 */
+
+ addu $a3, $a0, $a3 /* dest_end = dest + width */
+
+ li $t9, 0x00800080
+
+0:
+ lbu $t8, 0($a2) /* mask */
+ lw $t0, 0($a0) /* dest */
+ ins $t8, $t8, 16, 8 /* 0:m:0:m; equivalent to replv.ph */
+
+ muleu_s.ph.qbl $t3, $a1, $t8
+ muleu_s.ph.qbr $t4, $a1, $t8
+
+ addiu $a0, $a0, 4 /* dest++ */
+ addiu $a2, $a2, 1 /* mask++ */
+
+ addu $t3, $t3, $t9 /* can't overflow; rev2: addu_s.ph */
+ addu $t4, $t4, $t9 /* can't overflow; rev2: addu_s.ph */
+ preceu.ph.qbla $t5, $t3 /* rev2: shrl.ph */
+ preceu.ph.qbla $t6, $t4 /* rev2: shrl.ph */
+ addu $t3, $t3, $t5 /* can't overflow; rev2: addu_s.ph */
+ addu $t4, $t4, $t6 /* can't overflow; rev2: addu_s.ph */
+ precrq.qb.ph $t1, $t3, $t4 /* in(src,m) */
+
+ not $t2, $t1 /* ~in(src,m) */
+ srl $t2, $t2, 24
+ ins $t2, $t2, 16, 8 /* 0:a:0:a; equivalent to replv.ph */
+
+ muleu_s.ph.qbl $t3, $t0, $t2
+ muleu_s.ph.qbr $t4, $t0, $t2
+
+ addu $t3, $t3, $t9 /* can't overflow; rev2: addu_s.ph */
+ addu $t4, $t4, $t9 /* can't overflow; rev2: addu_s.ph */
+ preceu.ph.qbla $t5, $t3 /* rev2: shrl.ph */
+ preceu.ph.qbla $t6, $t4 /* rev2: shrl.ph */
+ addu $t3, $t3, $t5 /* can't overflow; rev2: addu_s.ph */
+ addu $t4, $t4, $t6 /* can't overflow; rev2: addu_s.ph */
+ precrq.qb.ph $t3, $t3, $t4
+ addu_s.qb $t3, $t3, $t1 /* over(in(src,m),dest) */
+
+ bne $a0, $a3, 0b
+ sw $t3, -4($a0) /* dest */
+
+1:
+ jr $ra
+ nop
+
+ .end mips_dspase1_composite_over_n_8_8888_inner
+
diff --git a/pixman/pixman-mips-dspase1.c b/pixman/pixman-mips-dspase1.c
new file mode 100644
index 0000000..7de4052
--- /dev/null
+++ b/pixman/pixman-mips-dspase1.c
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2010, MIPS Technologies
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "pixman-private.h"
+
+
+/* assembly-language functions */
+
+void
+mips_dspase1_combine_over_u_nomask (uint32_t *dest, const uint32_t *src,
+ const uint32_t *mask, int width);
+
+void
+mips_dspase1_combine_over_u_mask (uint32_t *dest, const uint32_t *src,
+ const uint32_t *mask, int width);
+
+void
+mips_dspase1_composite_over_n_8_8888_inner (uint32_t *dest, uint32_t src,
+ const uint8_t *mask, int width);
+
+
+/***************************************************************************/
+
+
+static void
+mips_dspase1_combine_over_u (pixman_implementation_t *imp,
+ pixman_op_t op,
+ uint32_t * dest,
+ const uint32_t * src,
+ const uint32_t * mask,
+ int width)
+{
+ if (mask)
+ mips_dspase1_combine_over_u_mask (dest, src, mask, width);
+ else
+ mips_dspase1_combine_over_u_nomask (dest, src, mask, width);
+}
+
+
+static void
+mips_dspase1_fast_composite_over_n_8_8888 (pixman_implementation_t *imp,
+ pixman_op_t op,
+ pixman_image_t * src_image,
+ pixman_image_t * mask_image,
+ pixman_image_t * dst_image,
+ int32_t src_x,
+ int32_t src_y,
+ int32_t mask_x,
+ int32_t mask_y,
+ int32_t dest_x,
+ int32_t dest_y,
+ int32_t width,
+ int32_t height)
+{
+ uint32_t src, srca;
+ uint32_t *dst_line, *dst;
+ uint8_t *mask_line, *mask;
+ int dst_stride, mask_stride;
+
+ src = _pixman_image_get_solid (src_image, dst_image->bits.format);
+
+ srca = src >> 24;
+ if (src == 0)
+ return;
+
+ PIXMAN_IMAGE_GET_LINE (dst_image, dest_x, dest_y, uint32_t, dst_stride, dst_line, 1);
+ PIXMAN_IMAGE_GET_LINE (mask_image, mask_x, mask_y, uint8_t, mask_stride, mask_line, 1);
+
+ while (height--)
+ {
+ dst = dst_line;
+ dst_line += dst_stride;
+ mask = mask_line;
+ mask_line += mask_stride;
+
+ mips_dspase1_composite_over_n_8_8888_inner (dst, src, mask, width);
+ }
+}
+
+
+/***************************************************************************/
+
+
+static const pixman_fast_path_t mips_dspase1_fast_paths[] =
+{
+ PIXMAN_STD_FAST_PATH (OVER, solid, a8, a8r8g8b8, mips_dspase1_fast_composite_over_n_8_8888),
+ { PIXMAN_OP_NONE }
+};
+
+
+pixman_implementation_t *
+_pixman_implementation_create_mips_dspase1 (pixman_implementation_t *delegate)
+{
+ pixman_implementation_t *imp;
+
+ if (delegate == NULL)
+ delegate = _pixman_implementation_create_fast_path ();
+
+ imp = _pixman_implementation_create (delegate, mips_dspase1_fast_paths);
+ imp->combine_32[PIXMAN_OP_OVER] = mips_dspase1_combine_over_u;
+
+ return imp;
+}
diff --git a/pixman/pixman-mips32r2-asm.S b/pixman/pixman-mips32r2-asm.S
new file mode 100644
index 0000000..02428a4
--- /dev/null
+++ b/pixman/pixman-mips32r2-asm.S
@@ -0,0 +1,209 @@
+/*
+ * Copyright 2010, MIPS Technologies
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+
+#ifndef _ABIO32
+#error This code works with the MIPS o32 ABI!
+#endif
+
+
+ .text
+ .set noreorder
+ .set nomacro
+
+/***************************************************************************
+pixman_bool_t
+mips32r2_pixman_fill32 (uint32_t *bits, int stride, int x, int y,
+ int width, int height, uint32_t xor)
+***************************************************************************/
+
+ .global mips32r2_pixman_fill32
+ .ent mips32r2_pixman_fill32
+
+mips32r2_pixman_fill32:
+ mul $a3, $a1, $a3
+ addu $a3, $a3, $a2
+ sll $a3, $a3, 2
+ addu $a0, $a0, $a3 /* bits = bits + y * stride + x */
+
+ lw $a2, 16($sp) /* width */
+ lw $a3, 20($sp) /* height */
+ lw $v0, 24($sp) /* xor */
+
+ li $t0, ~7
+ beqz $a3, 5f /* exit if height = 0 */
+ and $t0, $a2, $t0 /* width8 = width & ~7 */
+
+ sll $a1, $a1, 2 /* stride <<= 2 */
+ sll $t0, $t0, 2 /* width8 <<= 2 */
+ sll $a2, $a2, 2 /* width <<= 2 */
+
+0:
+ move $t1, $a0 /* b = bits */
+ addu $t2, $t1, $t0 /* b + width8 */
+
+ beq $t1, $t2, 2f /* skip unrolled loop if not enough samples */
+ addu $t3, $t1, $a2 /* b + width */
+
+1:
+ sw $v0, 0($t1)
+ sw $v0, 4($t1)
+ sw $v0, 8($t1)
+ sw $v0,12($t1)
+ sw $v0,16($t1)
+ sw $v0,20($t1)
+ sw $v0,24($t1)
+
+ addiu $t1, $t1, 32 /* b += 8 */
+ bne $t1, $t2, 1b /* b = (bits + width8)? */
+ sw $v0, -4($t1)
+
+2:
+ beq $t1, $t3, 4f /* skip single-sample loop if all work done */
+ addiu $a3, $a3, -1 /* height-- */
+
+3:
+ addiu $t1, $t1, 4
+ bne $t1, $t3, 3b /* b = (bits + width)? */
+ sw $v0, -4($t1)
+
+4:
+ bnez $a3, 0b
+ addu $a0, $a0, $a1 /* bits += stride */
+
+5:
+ jr $ra
+ li $v0, 1
+
+ .end mips32r2_pixman_fill32
+
+
+/***************************************************************************
+void
+mips32r2_composite_over_n_8_8888_inner (uint32_t *dest, const uint32_t src,
+ const uint8_t *mask, int width)
+***************************************************************************/
+
+ .global mips32r2_composite_over_n_8_8888_inner
+ .ent mips32r2_composite_over_n_8_8888_inner
+
+mips32r2_composite_over_n_8_8888_inner:
+ beqz $a3, 1f
+ sll $a3, $a3, 2 /* width <<= 2 */
+
+ addu $a3, $a0, $a3 /* dest_end = dest + width */
+
+ li $t7, 0x01000100
+ li $t8, 0x00FF00FF /* RB_MASK */
+ li $t9, 0x00800080
+
+0:
+ lbu $t2, 0($a2) /* mask */
+
+ /* in() */
+
+ and $t5, $a1, $t8
+ mul $t3, $t5, $t2
+
+ lw $t0, 0($a0) /* dest */
+ addiu $a2, $a2, 1 /* mask++ */
+
+ srl $t6, $a1, 8
+ and $t6, $t6, $t8
+ mul $t4, $t6, $t2
+
+ addu $t3, $t3, $t9
+ srl $t5, $t3, 8
+ and $t5, $t5, $t8
+ addu $t3, $t3, $t5
+ srl $t3, $t3, 8
+ and $t3, $t3, $t8
+
+ addu $t4, $t4, $t9
+ srl $t6, $t4, 8
+ and $t6, $t6, $t8
+ addu $t4, $t4, $t6
+ srl $t4, $t4, 8
+ and $t4, $t4, $t8
+
+ sll $t4, $t4, 8
+ or $t1, $t3, $t4
+
+
+ not $t2, $t1 /* ~in() */
+ srl $t2, $t2, 24
+
+ /* over(): UN8_rb_MUL_UN8() and UN8_rb_ADD_UN8_rb() */
+
+ and $t5, $t0, $t8
+ mul $t3, $t5, $t2
+
+ addiu $a0, $a0, 4 /* dest++ */
+
+ srl $t6, $t0, 8
+ and $t6, $t6, $t8
+ mul $t4, $t6, $t2
+
+ addu $t3, $t3, $t9
+ srl $t5, $t3, 8
+ and $t5, $t5, $t8
+ addu $t3, $t3, $t5
+ srl $t3, $t3, 8
+ and $t3, $t3, $t8
+
+ and $t5, $t1, $t8
+ addu $t3, $t3, $t5
+ srl $t5, $t3, 8
+ and $t5, $t5, $t8
+ subu $t5, $t7, $t5
+ or $t3, $t3, $t5
+ and $t3, $t3, $t8
+
+ addu $t4, $t4, $t9
+ srl $t6, $t4, 8
+ and $t6, $t6, $t8
+ addu $t4, $t4, $t6
+ srl $t4, $t4, 8
+ and $t4, $t4, $t8
+
+ srl $t6, $t1, 8
+ and $t6, $t6, $t8
+ addu $t4, $t4, $t6
+ srl $t6, $t4, 8
+ and $t6, $t6, $t8
+ subu $t6, $t7, $t6
+ or $t4, $t4, $t6
+ and $t4, $t4, $t8
+
+ sll $t4, $t4, 8
+ or $t3, $t3, $t4
+
+ bne $a0, $a3, 0b
+ sw $t3, -4($a0) /* dest */
+
+1:
+ jr $ra
+ nop
+
+ .end mips32r2_composite_over_n_8_8888_inner
+
diff --git a/pixman/pixman-mips32r2.c b/pixman/pixman-mips32r2.c
new file mode 100644
index 0000000..4db293e
--- /dev/null
+++ b/pixman/pixman-mips32r2.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright 2010, MIPS Technologies
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "pixman-private.h"
+
+
+/* assembly-language functions */
+
+pixman_bool_t
+mips32r2_pixman_fill32 (uint32_t *bits, int stride, int x, int y,
+ int width, int height, uint32_t xor);
+
+void
+mips32r2_composite_over_n_8_8888_inner (uint32_t *dest, uint32_t src,
+ const uint8_t *mask, int width);
+
+
+/***************************************************************************/
+
+
+static pixman_bool_t
+mips32r2_fill (pixman_implementation_t *imp,
+ uint32_t * bits,
+ int stride,
+ int bpp,
+ int x,
+ int y,
+ int width,
+ int height,
+ uint32_t xor)
+{
+ pixman_bool_t b;
+
+ switch (bpp)
+ {
+ case 32:
+ b = mips32r2_pixman_fill32 (bits, stride, x, y, width, height, xor);
+ break;
+
+ default:
+ b = _pixman_implementation_fill (imp->delegate, bits, stride, bpp,
+ x, y, width, height, xor);
+ break;
+ }
+
+ return b;
+}
+
+
+static void
+mips32r2_fast_composite_over_n_8_8888 (pixman_implementation_t *imp,
+ pixman_op_t op,
+ pixman_image_t * src_image,
+ pixman_image_t * mask_image,
+ pixman_image_t * dst_image,
+ int32_t src_x,
+ int32_t src_y,
+ int32_t mask_x,
+ int32_t mask_y,
+ int32_t dest_x,
+ int32_t dest_y,
+ int32_t width,
+ int32_t height)
+{
+ uint32_t src, srca;
+ uint32_t *dst_line, *dst;
+ uint8_t *mask_line, *mask;
+ int dst_stride, mask_stride;
+
+ src = _pixman_image_get_solid (src_image, dst_image->bits.format);
+
+ srca = src >> 24;
+ if (src == 0)
+ return;
+
+ PIXMAN_IMAGE_GET_LINE (dst_image, dest_x, dest_y, uint32_t, dst_stride, dst_line, 1);
+ PIXMAN_IMAGE_GET_LINE (mask_image, mask_x, mask_y, uint8_t, mask_stride, mask_line, 1);
+
+ while (height--)
+ {
+ dst = dst_line;
+ dst_line += dst_stride;
+ mask = mask_line;
+ mask_line += mask_stride;
+
+ mips32r2_composite_over_n_8_8888_inner (dst, src, mask, width);
+ }
+}
+
+
+/***************************************************************************/
+
+
+static const pixman_fast_path_t mips32r2_fast_paths[] =
+{
+ PIXMAN_STD_FAST_PATH (OVER, solid, a8, a8r8g8b8, mips32r2_fast_composite_over_n_8_8888),
+ { PIXMAN_OP_NONE }
+};
+
+
+pixman_implementation_t *
+_pixman_implementation_create_mips32r2 (pixman_implementation_t *delegate)
+{
+ pixman_implementation_t *imp;
+
+ if (delegate == NULL)
+ delegate = _pixman_implementation_create_fast_path ();
+
+ imp = _pixman_implementation_create (delegate, mips32r2_fast_paths);
+ imp->fill = mips32r2_fill;
+
+ return imp;
+}
diff --git a/pixman/pixman-private.h b/pixman/pixman-private.h
index 383748a..1895f1d 100644
--- a/pixman/pixman-private.h
+++ b/pixman/pixman-private.h
@@ -518,6 +518,17 @@ pixman_implementation_t *
_pixman_implementation_create_vmx (void);
#endif
+#ifdef USE_MIPS32R2
+pixman_implementation_t *
+_pixman_implementation_create_mips32r2 (pixman_implementation_t *delegate);
+#endif
+
+#ifdef USE_MIPS_DSPASE1
+pixman_implementation_t *
+_pixman_implementation_create_mips_dspase1 (pixman_implementation_t *delegate);
+#endif
+
+
pixman_implementation_t *
_pixman_choose_implementation (void);
--
1.7.1
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