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-rw-r--r--libs/pixman-0.40.0/pixman/pixman-utils.c330
1 files changed, 0 insertions, 330 deletions
diff --git a/libs/pixman-0.40.0/pixman/pixman-utils.c b/libs/pixman-0.40.0/pixman/pixman-utils.c
deleted file mode 100644
index 2c2dddd..0000000
--- a/libs/pixman-0.40.0/pixman/pixman-utils.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/*
- * Copyright © 2000 SuSE, Inc.
- * Copyright © 1999 Keith Packard
- *
- * 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 SuSE not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. SuSE makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- *
- * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
- * 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: Keith Packard, SuSE, Inc.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "pixman-private.h"
-
-pixman_bool_t
-_pixman_multiply_overflows_size (size_t a, size_t b)
-{
- return a >= SIZE_MAX / b;
-}
-
-pixman_bool_t
-_pixman_multiply_overflows_int (unsigned int a, unsigned int b)
-{
- return a >= INT32_MAX / b;
-}
-
-pixman_bool_t
-_pixman_addition_overflows_int (unsigned int a, unsigned int b)
-{
- return a > INT32_MAX - b;
-}
-
-void *
-pixman_malloc_ab_plus_c (unsigned int a, unsigned int b, unsigned int c)
-{
- if (!b || a >= INT32_MAX / b || (a * b) > INT32_MAX - c)
- return NULL;
-
- return malloc (a * b + c);
-}
-
-void *
-pixman_malloc_ab (unsigned int a,
- unsigned int b)
-{
- if (a >= INT32_MAX / b)
- return NULL;
-
- return malloc (a * b);
-}
-
-void *
-pixman_malloc_abc (unsigned int a,
- unsigned int b,
- unsigned int c)
-{
- if (a >= INT32_MAX / b)
- return NULL;
- else if (a * b >= INT32_MAX / c)
- return NULL;
- else
- return malloc (a * b * c);
-}
-
-static force_inline uint16_t
-float_to_unorm (float f, int n_bits)
-{
- uint32_t u;
-
- if (f > 1.0)
- f = 1.0;
- if (f < 0.0)
- f = 0.0;
-
- u = f * (1 << n_bits);
- u -= (u >> n_bits);
-
- return u;
-}
-
-static force_inline float
-unorm_to_float (uint16_t u, int n_bits)
-{
- uint32_t m = ((1 << n_bits) - 1);
-
- return (u & m) * (1.f / (float)m);
-}
-
-/*
- * This function expands images from a8r8g8b8 to argb_t. To preserve
- * precision, it needs to know from which source format the a8r8g8b8 pixels
- * originally came.
- *
- * For example, if the source was PIXMAN_x1r5g5b5 and the red component
- * contained bits 12345, then the 8-bit value is 12345123. To correctly
- * expand this to floating point, it should be 12345 / 31.0 and not
- * 12345123 / 255.0.
- */
-void
-pixman_expand_to_float (argb_t *dst,
- const uint32_t *src,
- pixman_format_code_t format,
- int width)
-{
- static const float multipliers[16] = {
- 0.0f,
- 1.0f / ((1 << 1) - 1),
- 1.0f / ((1 << 2) - 1),
- 1.0f / ((1 << 3) - 1),
- 1.0f / ((1 << 4) - 1),
- 1.0f / ((1 << 5) - 1),
- 1.0f / ((1 << 6) - 1),
- 1.0f / ((1 << 7) - 1),
- 1.0f / ((1 << 8) - 1),
- 1.0f / ((1 << 9) - 1),
- 1.0f / ((1 << 10) - 1),
- 1.0f / ((1 << 11) - 1),
- 1.0f / ((1 << 12) - 1),
- 1.0f / ((1 << 13) - 1),
- 1.0f / ((1 << 14) - 1),
- 1.0f / ((1 << 15) - 1),
- };
- int a_size, r_size, g_size, b_size;
- int a_shift, r_shift, g_shift, b_shift;
- float a_mul, r_mul, g_mul, b_mul;
- uint32_t a_mask, r_mask, g_mask, b_mask;
- int i;
-
- if (!PIXMAN_FORMAT_VIS (format))
- format = PIXMAN_a8r8g8b8;
-
- /*
- * Determine the sizes of each component and the masks and shifts
- * required to extract them from the source pixel.
- */
- a_size = PIXMAN_FORMAT_A (format);
- r_size = PIXMAN_FORMAT_R (format);
- g_size = PIXMAN_FORMAT_G (format);
- b_size = PIXMAN_FORMAT_B (format);
-
- a_shift = 32 - a_size;
- r_shift = 24 - r_size;
- g_shift = 16 - g_size;
- b_shift = 8 - b_size;
-
- a_mask = ((1 << a_size) - 1);
- r_mask = ((1 << r_size) - 1);
- g_mask = ((1 << g_size) - 1);
- b_mask = ((1 << b_size) - 1);
-
- a_mul = multipliers[a_size];
- r_mul = multipliers[r_size];
- g_mul = multipliers[g_size];
- b_mul = multipliers[b_size];
-
- /* Start at the end so that we can do the expansion in place
- * when src == dst
- */
- for (i = width - 1; i >= 0; i--)
- {
- const uint32_t pixel = src[i];
-
- dst[i].a = a_mask? ((pixel >> a_shift) & a_mask) * a_mul : 1.0f;
- dst[i].r = ((pixel >> r_shift) & r_mask) * r_mul;
- dst[i].g = ((pixel >> g_shift) & g_mask) * g_mul;
- dst[i].b = ((pixel >> b_shift) & b_mask) * b_mul;
- }
-}
-
-uint16_t
-pixman_float_to_unorm (float f, int n_bits)
-{
- return float_to_unorm (f, n_bits);
-}
-
-float
-pixman_unorm_to_float (uint16_t u, int n_bits)
-{
- return unorm_to_float (u, n_bits);
-}
-
-void
-pixman_contract_from_float (uint32_t *dst,
- const argb_t *src,
- int width)
-{
- int i;
-
- for (i = 0; i < width; ++i)
- {
- uint32_t a, r, g, b;
-
- a = float_to_unorm (src[i].a, 8);
- r = float_to_unorm (src[i].r, 8);
- g = float_to_unorm (src[i].g, 8);
- b = float_to_unorm (src[i].b, 8);
-
- dst[i] = (a << 24) | (r << 16) | (g << 8) | (b << 0);
- }
-}
-
-uint32_t *
-_pixman_iter_get_scanline_noop (pixman_iter_t *iter, const uint32_t *mask)
-{
- return iter->buffer;
-}
-
-void
-_pixman_iter_init_bits_stride (pixman_iter_t *iter, const pixman_iter_info_t *info)
-{
- pixman_image_t *image = iter->image;
- uint8_t *b = (uint8_t *)image->bits.bits;
- int s = image->bits.rowstride * 4;
-
- iter->bits = b + s * iter->y + iter->x * PIXMAN_FORMAT_BPP (info->format) / 8;
- iter->stride = s;
-}
-
-#define N_TMP_BOXES (16)
-
-pixman_bool_t
-pixman_region16_copy_from_region32 (pixman_region16_t *dst,
- pixman_region32_t *src)
-{
- int n_boxes, i;
- pixman_box32_t *boxes32;
- pixman_box16_t *boxes16;
- pixman_bool_t retval;
-
- boxes32 = pixman_region32_rectangles (src, &n_boxes);
-
- boxes16 = pixman_malloc_ab (n_boxes, sizeof (pixman_box16_t));
-
- if (!boxes16)
- return FALSE;
-
- for (i = 0; i < n_boxes; ++i)
- {
- boxes16[i].x1 = boxes32[i].x1;
- boxes16[i].y1 = boxes32[i].y1;
- boxes16[i].x2 = boxes32[i].x2;
- boxes16[i].y2 = boxes32[i].y2;
- }
-
- pixman_region_fini (dst);
- retval = pixman_region_init_rects (dst, boxes16, n_boxes);
- free (boxes16);
- return retval;
-}
-
-pixman_bool_t
-pixman_region32_copy_from_region16 (pixman_region32_t *dst,
- pixman_region16_t *src)
-{
- int n_boxes, i;
- pixman_box16_t *boxes16;
- pixman_box32_t *boxes32;
- pixman_box32_t tmp_boxes[N_TMP_BOXES];
- pixman_bool_t retval;
-
- boxes16 = pixman_region_rectangles (src, &n_boxes);
-
- if (n_boxes > N_TMP_BOXES)
- boxes32 = pixman_malloc_ab (n_boxes, sizeof (pixman_box32_t));
- else
- boxes32 = tmp_boxes;
-
- if (!boxes32)
- return FALSE;
-
- for (i = 0; i < n_boxes; ++i)
- {
- boxes32[i].x1 = boxes16[i].x1;
- boxes32[i].y1 = boxes16[i].y1;
- boxes32[i].x2 = boxes16[i].x2;
- boxes32[i].y2 = boxes16[i].y2;
- }
-
- pixman_region32_fini (dst);
- retval = pixman_region32_init_rects (dst, boxes32, n_boxes);
-
- if (boxes32 != tmp_boxes)
- free (boxes32);
-
- return retval;
-}
-
-/* This function is exported for the sake of the test suite and not part
- * of the ABI.
- */
-PIXMAN_EXPORT pixman_implementation_t *
-_pixman_internal_only_get_implementation (void)
-{
- return get_implementation ();
-}
-
-void
-_pixman_log_error (const char *function, const char *message)
-{
- static int n_messages = 0;
-
- if (n_messages < 10)
- {
- fprintf (stderr,
- "*** BUG ***\n"
- "In %s: %s\n"
- "Set a breakpoint on '_pixman_log_error' to debug\n\n",
- function, message);
-
- n_messages++;
- }
-}
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