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| Rev | Author | Line No. | Line |
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| 4349 | Serge | 1 | /* -*- Mode: c; c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t; -*- */ |
| 2 | /* |
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| 3 | * Copyright © 2011 Red Hat, Inc. |
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| 4 | * |
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| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 6 | * copy of this software and associated documentation files (the "Software"), |
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| 7 | * to deal in the Software without restriction, including without limitation |
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| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 10 | * Software is furnished to do so, subject to the following conditions: |
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| 11 | * |
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| 12 | * The above copyright notice and this permission notice (including the next |
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| 13 | * paragraph) shall be included in all copies or substantial portions of the |
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| 14 | * Software. |
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| 15 | * |
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| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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| 21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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| 22 | * DEALINGS IN THE SOFTWARE. |
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| 23 | */ |
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| 24 | #ifdef HAVE_CONFIG_H |
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| 25 | #include |
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| 26 | #endif |
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| 27 | #include |
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| 28 | #include |
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| 29 | #include "pixman-private.h" |
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| 30 | #include "pixman-combine32.h" |
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| 31 | #include "pixman-inlines.h" |
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| 32 | |||
| 33 | static void |
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| 34 | noop_composite (pixman_implementation_t *imp, |
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| 35 | pixman_composite_info_t *info) |
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| 36 | { |
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| 37 | return; |
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| 38 | } |
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| 39 | |||
| 40 | static void |
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| 41 | dest_write_back_direct (pixman_iter_t *iter) |
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| 42 | { |
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| 43 | iter->buffer += iter->image->bits.rowstride; |
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| 44 | } |
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| 45 | |||
| 46 | static uint32_t * |
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| 47 | noop_get_scanline (pixman_iter_t *iter, const uint32_t *mask) |
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| 48 | { |
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| 49 | uint32_t *result = iter->buffer; |
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| 50 | |||
| 51 | iter->buffer += iter->image->bits.rowstride; |
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| 52 | |||
| 53 | return result; |
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| 54 | } |
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| 55 | |||
| 56 | static uint32_t * |
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| 57 | get_scanline_null (pixman_iter_t *iter, const uint32_t *mask) |
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| 58 | { |
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| 59 | return NULL; |
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| 60 | } |
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| 61 | |||
| 62 | static pixman_bool_t |
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| 63 | noop_src_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter) |
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| 64 | { |
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| 65 | pixman_image_t *image = iter->image; |
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| 66 | |||
| 67 | #define FLAGS \ |
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| 68 | (FAST_PATH_STANDARD_FLAGS | FAST_PATH_ID_TRANSFORM) |
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| 69 | |||
| 70 | if (!image) |
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| 71 | { |
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| 72 | iter->get_scanline = get_scanline_null; |
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| 73 | } |
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| 74 | else if ((iter->iter_flags & (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB)) == |
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| 75 | (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB)) |
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| 76 | { |
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| 77 | iter->get_scanline = _pixman_iter_get_scanline_noop; |
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| 78 | } |
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| 79 | else if (image->common.extended_format_code == PIXMAN_solid && |
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| 80 | (iter->image->type == SOLID || |
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| 81 | (iter->image_flags & FAST_PATH_NO_ALPHA_MAP))) |
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| 82 | { |
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| 83 | if (iter->iter_flags & ITER_NARROW) |
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| 84 | { |
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| 85 | uint32_t *buffer = iter->buffer; |
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| 86 | uint32_t *end = buffer + iter->width; |
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| 87 | uint32_t color; |
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| 88 | |||
| 89 | if (image->type == SOLID) |
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| 90 | color = image->solid.color_32; |
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| 91 | else |
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| 92 | color = image->bits.fetch_pixel_32 (&image->bits, 0, 0); |
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| 93 | |||
| 94 | while (buffer < end) |
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| 95 | *(buffer++) = color; |
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| 96 | } |
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| 97 | else |
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| 98 | { |
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| 99 | argb_t *buffer = (argb_t *)iter->buffer; |
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| 100 | argb_t *end = buffer + iter->width; |
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| 101 | argb_t color; |
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| 102 | |||
| 103 | if (image->type == SOLID) |
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| 104 | color = image->solid.color_float; |
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| 105 | else |
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| 106 | color = image->bits.fetch_pixel_float (&image->bits, 0, 0); |
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| 107 | |||
| 108 | while (buffer < end) |
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| 109 | *(buffer++) = color; |
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| 110 | } |
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| 111 | |||
| 112 | iter->get_scanline = _pixman_iter_get_scanline_noop; |
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| 113 | } |
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| 114 | else if (image->common.extended_format_code == PIXMAN_a8r8g8b8 && |
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| 115 | (iter->iter_flags & ITER_NARROW) && |
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| 116 | (iter->image_flags & FLAGS) == FLAGS && |
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| 117 | iter->x >= 0 && iter->y >= 0 && |
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| 118 | iter->x + iter->width <= image->bits.width && |
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| 119 | iter->y + iter->height <= image->bits.height) |
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| 120 | { |
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| 121 | iter->buffer = |
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| 122 | image->bits.bits + iter->y * image->bits.rowstride + iter->x; |
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| 123 | |||
| 124 | iter->get_scanline = noop_get_scanline; |
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| 125 | } |
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| 126 | else |
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| 127 | { |
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| 128 | return FALSE; |
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| 129 | } |
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| 130 | |||
| 131 | return TRUE; |
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| 132 | } |
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| 133 | |||
| 134 | static pixman_bool_t |
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| 135 | noop_dest_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter) |
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| 136 | { |
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| 137 | pixman_image_t *image = iter->image; |
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| 138 | uint32_t image_flags = iter->image_flags; |
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| 139 | uint32_t iter_flags = iter->iter_flags; |
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| 140 | |||
| 141 | if ((image_flags & FAST_PATH_STD_DEST_FLAGS) == FAST_PATH_STD_DEST_FLAGS && |
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| 142 | (iter_flags & ITER_NARROW) == ITER_NARROW && |
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| 143 | ((image->common.extended_format_code == PIXMAN_a8r8g8b8) || |
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| 144 | (image->common.extended_format_code == PIXMAN_x8r8g8b8 && |
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| 145 | (iter_flags & (ITER_LOCALIZED_ALPHA))))) |
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| 146 | { |
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| 147 | iter->buffer = image->bits.bits + iter->y * image->bits.rowstride + iter->x; |
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| 148 | |||
| 149 | iter->get_scanline = _pixman_iter_get_scanline_noop; |
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| 150 | iter->write_back = dest_write_back_direct; |
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| 151 | |||
| 152 | return TRUE; |
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| 153 | } |
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| 154 | else |
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| 155 | { |
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| 156 | return FALSE; |
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| 157 | } |
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| 158 | } |
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| 159 | |||
| 160 | static const pixman_fast_path_t noop_fast_paths[] = |
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| 161 | { |
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| 162 | { PIXMAN_OP_DST, PIXMAN_any, 0, PIXMAN_any, 0, PIXMAN_any, 0, noop_composite }, |
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| 163 | { PIXMAN_OP_NONE }, |
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| 164 | }; |
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| 165 | |||
| 166 | pixman_implementation_t * |
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| 167 | _pixman_implementation_create_noop (pixman_implementation_t *fallback) |
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| 168 | { |
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| 169 | pixman_implementation_t *imp = |
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| 170 | _pixman_implementation_create (fallback, noop_fast_paths); |
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| 171 | |||
| 172 | imp->src_iter_init = noop_src_iter_init; |
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| 173 | imp->dest_iter_init = noop_dest_iter_init; |
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| 174 | |||
| 175 | return imp; |
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| 176 | } |