diff options
Diffstat (limited to 'pixman/test')
| -rw-r--r-- | pixman/test/Makefile.sources | 1 | ||||
| -rw-r--r-- | pixman/test/affine-bench.c | 436 |
2 files changed, 437 insertions, 0 deletions
diff --git a/pixman/test/Makefile.sources b/pixman/test/Makefile.sources index c20c34b17..8b0e855e2 100644 --- a/pixman/test/Makefile.sources +++ b/pixman/test/Makefile.sources @@ -37,6 +37,7 @@ OTHERPROGRAMS = \ radial-perf-test \ check-formats \ scaling-bench \ + affine-bench \ $(NULL) # Utility functions diff --git a/pixman/test/affine-bench.c b/pixman/test/affine-bench.c new file mode 100644 index 000000000..9e0121e77 --- /dev/null +++ b/pixman/test/affine-bench.c @@ -0,0 +1,436 @@ +/* + * Copyright © 2014 RISC OS Open Ltd + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of the copyright holders not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. The copyright holders make no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Author: Ben Avison (bavison@riscosopen.org) + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <stdint.h> +#include "utils.h" + +#ifdef HAVE_GETTIMEOFDAY +#include <sys/time.h> +#else +#include <time.h> +#endif + +#define WIDTH 1920 +#define HEIGHT 1080 + +/* How much data to read to flush all cached data to RAM */ +#define MAX_L2CACHE_SIZE (8 * 1024 * 1024) + +#define PAGE_SIZE (4 * 1024) + +struct bench_info +{ + pixman_op_t op; + pixman_transform_t transform; + pixman_image_t *src_image; + pixman_image_t *mask_image; + pixman_image_t *dest_image; + int32_t src_x; + int32_t src_y; +}; + +typedef struct bench_info bench_info_t; + +struct box_48_16 +{ + pixman_fixed_48_16_t x1; + pixman_fixed_48_16_t y1; + pixman_fixed_48_16_t x2; + pixman_fixed_48_16_t y2; +}; + +typedef struct box_48_16 box_48_16_t; + +/* This function is copied verbatim from pixman.c. */ +static pixman_bool_t +compute_transformed_extents (pixman_transform_t *transform, + const pixman_box32_t *extents, + box_48_16_t *transformed) +{ + pixman_fixed_48_16_t tx1, ty1, tx2, ty2; + pixman_fixed_t x1, y1, x2, y2; + int i; + + x1 = pixman_int_to_fixed (extents->x1) + pixman_fixed_1 / 2; + y1 = pixman_int_to_fixed (extents->y1) + pixman_fixed_1 / 2; + x2 = pixman_int_to_fixed (extents->x2) - pixman_fixed_1 / 2; + y2 = pixman_int_to_fixed (extents->y2) - pixman_fixed_1 / 2; + + if (!transform) + { + transformed->x1 = x1; + transformed->y1 = y1; + transformed->x2 = x2; + transformed->y2 = y2; + + return TRUE; + } + + tx1 = ty1 = INT64_MAX; + tx2 = ty2 = INT64_MIN; + + for (i = 0; i < 4; ++i) + { + pixman_fixed_48_16_t tx, ty; + pixman_vector_t v; + + v.vector[0] = (i & 0x01)? x1 : x2; + v.vector[1] = (i & 0x02)? y1 : y2; + v.vector[2] = pixman_fixed_1; + + if (!pixman_transform_point (transform, &v)) + return FALSE; + + tx = (pixman_fixed_48_16_t)v.vector[0]; + ty = (pixman_fixed_48_16_t)v.vector[1]; + + if (tx < tx1) + tx1 = tx; + if (ty < ty1) + ty1 = ty; + if (tx > tx2) + tx2 = tx; + if (ty > ty2) + ty2 = ty; + } + + transformed->x1 = tx1; + transformed->y1 = ty1; + transformed->x2 = tx2; + transformed->y2 = ty2; + + return TRUE; +} + +static void +create_image (uint32_t width, + uint32_t height, + pixman_format_code_t format, + pixman_filter_t filter, + uint32_t **bits, + pixman_image_t **image) +{ + uint32_t stride = (width * PIXMAN_FORMAT_BPP (format) + 31) / 32 * 4; + + *bits = aligned_malloc (PAGE_SIZE, stride * height); + memset (*bits, 0xCC, stride * height); + *image = pixman_image_create_bits (format, width, height, *bits, stride); + pixman_image_set_repeat (*image, PIXMAN_REPEAT_NORMAL); + pixman_image_set_filter (*image, filter, NULL, 0); +} + +/* This needs to match the shortest cacheline length we expect to encounter */ +#define CACHE_CLEAN_INCREMENT 32 + +static void +flush_cache (void) +{ + static const char clean_space[MAX_L2CACHE_SIZE]; + volatile const char *x = clean_space; + const char *clean_end = clean_space + sizeof clean_space; + + while (x < clean_end) + { + (void) *x; + x += CACHE_CLEAN_INCREMENT; + } +} + +/* Obtain current time in microseconds modulo 2^32 */ +uint32_t +gettimei (void) +{ +#ifdef HAVE_GETTIMEOFDAY + struct timeval tv; + + gettimeofday (&tv, NULL); + return tv.tv_sec * 1000000 + tv.tv_usec; +#else + return (uint64_t) clock () * 1000000 / CLOCKS_PER_SEC; +#endif +} + +static void +pixman_image_composite_wrapper (const pixman_composite_info_t *info) +{ + pixman_image_composite (info->op, + info->src_image, info->mask_image, info->dest_image, + info->src_x, info->src_y, + info->mask_x, info->mask_y, + info->dest_x, info->dest_y, + info->width, info->height); +} + +static void +pixman_image_composite_empty (const pixman_composite_info_t *info) +{ + pixman_image_composite (info->op, + info->src_image, info->mask_image, info->dest_image, + info->src_x, info->src_y, + info->mask_x, info->mask_y, + info->dest_x, info->dest_y, + 1, 1); +} + +static void +bench (const bench_info_t *bi, + uint32_t max_n, + uint32_t max_time, + uint32_t *ret_n, + uint32_t *ret_time, + void (*func) (const pixman_composite_info_t *info)) +{ + uint32_t n = 0; + uint32_t t0; + uint32_t t1; + uint32_t x = 0; + pixman_transform_t t; + pixman_composite_info_t info; + + t = bi->transform; + info.op = bi->op; + info.src_image = bi->src_image; + info.mask_image = bi->mask_image; + info.dest_image = bi->dest_image; + info.src_x = 0; + info.src_y = 0; + info.mask_x = 0; + info.mask_y = 0; + /* info.dest_x set below */ + info.dest_y = 0; + info.width = WIDTH; + info.height = HEIGHT; + + t0 = gettimei (); + + do + { + + if (++x >= 64) + x = 0; + + info.dest_x = 63 - x; + + t.matrix[0][2] = pixman_int_to_fixed (bi->src_x + x); + t.matrix[1][2] = pixman_int_to_fixed (bi->src_y); + pixman_image_set_transform (bi->src_image, &t); + + if (bi->mask_image) + pixman_image_set_transform (bi->mask_image, &t); + + func (&info); + t1 = gettimei (); + } + while (++n < max_n && (t1 - t0) < max_time); + + if (ret_n) + *ret_n = n; + + *ret_time = t1 - t0; +} + +int +parse_fixed_argument (char *arg, pixman_fixed_t *value) +{ + char *tailptr; + + *value = pixman_double_to_fixed (strtod (arg, &tailptr)); + + return *tailptr == '\0'; +} + +int +parse_arguments (int argc, + char *argv[], + pixman_transform_t *t, + pixman_op_t *op, + pixman_format_code_t *src_format, + pixman_format_code_t *mask_format, + pixman_format_code_t *dest_format) +{ + if (!parse_fixed_argument (*argv, &t->matrix[0][0])) + return 0; + + if (*++argv == NULL) + return 1; + + if (!parse_fixed_argument (*argv, &t->matrix[0][1])) + return 0; + + if (*++argv == NULL) + return 1; + + if (!parse_fixed_argument (*argv, &t->matrix[1][0])) + return 0; + + if (*++argv == NULL) + return 1; + + if (!parse_fixed_argument (*argv, &t->matrix[1][1])) + return 0; + + if (*++argv == NULL) + return 1; + + *op = operator_from_string (*argv); + if (*op == PIXMAN_OP_NONE) + return 0; + + if (*++argv == NULL) + return 1; + + *src_format = format_from_string (*argv); + if (*src_format == PIXMAN_null) + return 0; + + ++argv; + if (argv[0] && argv[1]) + { + *mask_format = format_from_string (*argv); + if (*mask_format == PIXMAN_null) + return 0; + ++argv; + } + if (*argv) + { + *dest_format = format_from_string (*argv); + if (*dest_format == PIXMAN_null) + return 0; + } + return 1; +} + +static void +run_benchmark (const bench_info_t *bi) +{ + uint32_t n; /* number of iterations in at least 5 seconds */ + uint32_t t1; /* time taken to do n iterations, microseconds */ + uint32_t t2; /* calling overhead for n iterations, microseconds */ + + flush_cache (); + bench (bi, UINT32_MAX, 5000000, &n, &t1, pixman_image_composite_wrapper); + bench (bi, n, UINT32_MAX, NULL, &t2, pixman_image_composite_empty); + + /* The result indicates the output rate in megapixels/second */ + printf ("%6.2f\n", (double) n * WIDTH * HEIGHT / (t1 - t2)); +} + + +int +main (int argc, char *argv[]) +{ + bench_info_t binfo; + pixman_filter_t filter = PIXMAN_FILTER_NEAREST; + pixman_format_code_t src_format = PIXMAN_a8r8g8b8; + pixman_format_code_t mask_format = 0; + pixman_format_code_t dest_format = PIXMAN_a8r8g8b8; + pixman_box32_t dest_box = { 0, 0, WIDTH, HEIGHT }; + box_48_16_t transformed = { 0 }; + int32_t xmin, ymin, xmax, ymax; + uint32_t *src, *mask, *dest; + + binfo.op = PIXMAN_OP_SRC; + binfo.mask_image = NULL; + pixman_transform_init_identity (&binfo.transform); + + ++argv; + if (*argv && (*argv)[0] == '-' && (*argv)[1] == 'n') + { + filter = PIXMAN_FILTER_NEAREST; + ++argv; + --argc; + } + + if (*argv && (*argv)[0] == '-' && (*argv)[1] == 'b') + { + filter = PIXMAN_FILTER_BILINEAR; + ++argv; + --argc; + } + + if (argc == 1 || + !parse_arguments (argc, argv, &binfo.transform, &binfo.op, + &src_format, &mask_format, &dest_format)) + { + printf ("Usage: affine-bench [-n] [-b] axx [axy] [ayx] [ayy] [combine type]\n"); + printf (" [src format] [mask format] [dest format]\n"); + printf (" -n : nearest scaling (default)\n"); + printf (" -b : bilinear scaling\n"); + printf (" axx : x_out:x_in factor\n"); + printf (" axy : x_out:y_in factor (default 0)\n"); + printf (" ayx : y_out:x_in factor (default 0)\n"); + printf (" ayy : y_out:y_in factor (default 1)\n"); + printf (" combine type : src, over, in etc (default src)\n"); + printf (" src format : a8r8g8b8, r5g6b5 etc (default a8r8g8b8)\n"); + printf (" mask format : as for src format, but no mask used if omitted\n"); + printf (" dest format : as for src format (default a8r8g8b8)\n"); + printf ("The output is a single number in megapixels/second.\n"); + + return EXIT_FAILURE; + } + + compute_transformed_extents (&binfo.transform, &dest_box, &transformed); + /* The source area is expanded by a tiny bit (8/65536th pixel) + * to match the calculation of the COVER_CLIP flags in analyze_extent() + */ + xmin = pixman_fixed_to_int (transformed.x1 - 8 * pixman_fixed_e - pixman_fixed_1 / 2); + ymin = pixman_fixed_to_int (transformed.y1 - 8 * pixman_fixed_e - pixman_fixed_1 / 2); + xmax = pixman_fixed_to_int (transformed.x2 + 8 * pixman_fixed_e + pixman_fixed_1 / 2); + ymax = pixman_fixed_to_int (transformed.y2 + 8 * pixman_fixed_e + pixman_fixed_1 / 2); + binfo.src_x = -xmin; + binfo.src_y = -ymin; + + /* Always over-allocate width by 64 pixels for all src, mask and dst, + * so that we can iterate over an x-offset 0..63 in bench (). + * This is similar to lowlevel-blt-bench, which uses the same method + * to hit different cacheline misalignments. + */ + create_image (xmax - xmin + 64, ymax - ymin + 1, src_format, filter, + &src, &binfo.src_image); + + if (mask_format) + { + create_image (xmax - xmin + 64, ymax - ymin + 1, mask_format, filter, + &mask, &binfo.mask_image); + + if ((PIXMAN_FORMAT_R(mask_format) || + PIXMAN_FORMAT_G(mask_format) || + PIXMAN_FORMAT_B(mask_format))) + { + pixman_image_set_component_alpha (binfo.mask_image, 1); + } + } + + create_image (WIDTH + 64, HEIGHT, dest_format, filter, + &dest, &binfo.dest_image); + + run_benchmark (&binfo); + + return EXIT_SUCCESS; +} |