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blurring stuff should work perfectly fine now

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This commit is contained in:
Chris Guillott 2017-12-05 22:07:38 -05:00
parent 99842b3963
commit 9f8496441c
5 changed files with 38 additions and 19 deletions
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14
blur.c
View file

@ -32,7 +32,6 @@ blur_image_surface (cairo_surface_t *surface, int radius)
{
cairo_surface_t *tmp;
int width, height;
// int src_stride, dst_stride;
uint32_t *src, *dst;
if (cairo_surface_status (surface))
@ -64,15 +63,18 @@ blur_image_surface (cairo_surface_t *surface, int radius)
return;
src = (uint32_t*)cairo_image_surface_get_data (surface);
// src_stride = cairo_image_surface_get_stride (surface);
dst = (uint32_t*)cairo_image_surface_get_data (tmp);
// dst_stride = cairo_image_surface_get_stride (tmp);
//blur_impl_naive(src, dst, width, height, src_stride, dst_stride, 10000);
//blur_impl_sse2(src, dst, width, height, 4.5);
#ifdef __SSE4_1__
blur_impl_ssse3(src, dst, width, height, 4.5);
#elif __SSE2__
blur_impl_sse2(src, dst, width, height, 4.5);
#else
int src_stride = cairo_image_surface_get_stride (surface);
int dst_stride = cairo_image_surface_get_stride (tmp);
blur_impl_naive(src, dst, width, height, src_stride, dst_stride, 10000);
#endif
cairo_surface_destroy (tmp);
cairo_surface_flush (surface);
cairo_surface_mark_dirty (surface);

23
blur_simd.c
View file

@ -51,6 +51,7 @@ void blur_impl_sse2(uint32_t *src, uint32_t *dst, int width, int height, float s
}
void blur_impl_horizontal_pass_sse2(uint32_t *src, uint32_t *dst, float *kernel, int width, int height) {
uint32_t* o_src = src;
for (int row = 0; row < height; row++) {
for (int column = 0; column < width; column++, src++) {
__m128i rgbaIn[REGISTERS_CNT];
@ -59,7 +60,7 @@ void blur_impl_horizontal_pass_sse2(uint32_t *src, uint32_t *dst, float *kernel,
int leftBorder = column < HALF_KERNEL;
int rightBorder = column > width - HALF_KERNEL;
if (leftBorder || rightBorder) {
uint32_t _rgbaIn[KERNEL_SIZE] ALIGN16;
uint32_t _rgbaIn[KERNEL_SIZE + 1] ALIGN16;
int i = 0;
if (leftBorder) {
// for kernel size 7x7 and column == 0, we have:
@ -80,9 +81,23 @@ void blur_impl_horizontal_pass_sse2(uint32_t *src, uint32_t *dst, float *kernel,
for (int k = 0; k < REGISTERS_CNT; k++)
rgbaIn[k] = _mm_load_si128((__m128i*)(_rgbaIn + 4*k));
} else {
for (int k = 0; k < REGISTERS_CNT; k++)
for (int k = 0; k < REGISTERS_CNT; k++) {
#if 0
printf("%p -> %p (%ld) || %p->%p\n",
o_src,
o_src + (height * width),
o_src + (height * width) - src,
src + 4*k - HALF_KERNEL,
((__m128i*)src + 4*k - HALF_KERNEL) + 1
);
#endif
// if this copy would go out of bounds, break
if ((long long) (((__m128i*) src + 4*k - HALF_KERNEL) + 1)
> (long long) (o_src + (height * width)))
break;
rgbaIn[k] = _mm_loadu_si128((__m128i*)(src + 4*k - HALF_KERNEL));
}
}
// unpack each pixel, convert to float,
// multiply by corresponding kernel value
@ -198,7 +213,9 @@ void blur_impl_horizontal_pass_ssse3(uint32_t *src, uint32_t *dst, int8_t *kerne
}
} else {
for (int k = 0; k < REGISTERS_CNT; k++) {
if ((long long)(((__m128i*) src + 4*k - HALF_KERNEL) + 1) > (long long)((o_src + (width * height)))) break;
if ((long long) (((__m128i*) src + 4*k - HALF_KERNEL) + 1)
> (long long) (o_src + (height * width)))
break;
#if 0
printf("K: %d; p: %p -> %p\n", k, src+4*k - HALF_KERNEL, ((__m128i*) (src +4*k - HALF_KERNEL)) + 1);
printf("%p->%p, %p->%p (%ld)\n", (__m128i*) src + 4*k - HALF_KERNEL, ((__m128i*) src + 4*k - HALF_KERNEL) + 1, o_src, o_src + (width * height), o_src + (width * height) - src);

4
configure.ac
View file

@ -101,8 +101,8 @@ AC_PROG_LN_S
AM_PROG_AR
AX_FLAGS_WARN_ALL
AX_APPEND_FLAG([-msse4.1], [AM_CFLAGS])
AX_APPEND_FLAG([-O2], [AM_CFLAGS])
AX_APPEND_FLAG([-march=native], [AM_CFLAGS])
AX_APPEND_FLAG([-O2], [AM_CFLAGS])
AX_APPEND_FLAG([-funroll-loops], [AM_CFLAGS])
AX_APPEND_FLAG([-std=gnu99], [AM_CFLAGS])
AX_CHECK_COMPILE_FLAG([-Wunused-value], [AX_APPEND_FLAG([-Wunused-value], [AM_CFLAGS])])

10
m4/ax_check_enable_debug.m4
View file

@ -76,11 +76,11 @@ AC_DEFUN([AX_CHECK_ENABLE_DEBUG],[
AS_CASE([$enable_debug],
[yes],[
AC_MSG_RESULT(yes)
CFLAGS="${CFLAGS} -g -O2"
CXXFLAGS="${CXXFLAGS} -g -O2"
FFLAGS="${FFLAGS} -g -O2"
FCFLAGS="${FCFLAGS} -g -O2"
OBJCFLAGS="${OBJCFLAGS} -g -O2"
CFLAGS="${CFLAGS} -g -O0"
CXXFLAGS="${CXXFLAGS} -g -O0"
FFLAGS="${FFLAGS} -g -O0"
FCFLAGS="${FCFLAGS} -g -O0"
OBJCFLAGS="${OBJCFLAGS} -g -O0"
],
[info],[
AC_MSG_RESULT(info)

4
m4/ax_code_coverage.m4
View file

@ -141,8 +141,8 @@ AC_DEFUN([AX_CODE_COVERAGE],[
dnl Build the code coverage flags
CODE_COVERAGE_CPPFLAGS="-DNDEBUG"
CODE_COVERAGE_CFLAGS="-O2 -g -fprofile-arcs -ftest-coverage"
CODE_COVERAGE_CXXFLAGS="-O2 -g -fprofile-arcs -ftest-coverage"
CODE_COVERAGE_CFLAGS="-O0 -g -fprofile-arcs -ftest-coverage"
CODE_COVERAGE_CXXFLAGS="-O0 -g -fprofile-arcs -ftest-coverage"
CODE_COVERAGE_LDFLAGS="-lgcov"
AC_SUBST([CODE_COVERAGE_CPPFLAGS])