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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4680 | right-hear | 1 | #include "fitz.h" |
| 2 | |||
| 3 | #define QUANT(x,a) (((int)((x) * (a))) / (a)) |
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| 4 | #define HSUBPIX 5.0 |
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| 5 | #define VSUBPIX 5.0 |
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| 6 | |||
| 7 | #define STACK_SIZE 96 |
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| 8 | |||
| 9 | /* Enable the following to attempt to support knockout and/or isolated |
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| 10 | * blending groups. This code is known to give incorrect results currently |
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| 11 | * so disabled by default. See bug 692377. */ |
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| 12 | #undef ATTEMPT_KNOCKOUT_AND_ISOLATED |
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| 13 | |||
| 14 | /* Enable the following to help debug group blending. */ |
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| 15 | #undef DUMP_GROUP_BLENDS |
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| 16 | |||
| 17 | /* Note #1: At various points in this code (notably when clipping with non |
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| 18 | * rectangular masks), we create a new (empty) destination pixmap. We then |
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| 19 | * render this pixmap, then plot it back into the original destination |
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| 20 | * through a mask. This works well for normal blending, but falls down for |
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| 21 | * non-zero blending modes; effectively we are forcing ourselves to use an |
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| 22 | * isolated group. |
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| 23 | * |
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| 24 | * The fix for this would be to copy the contents from the underlying dest |
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| 25 | * into the newly created dest. This would enable us to use a non |
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| 26 | * FZ_BLEND_ISOLATED blendmode. Unfortunately, tt would break tiling, as |
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| 27 | * we could no longer render once and blend back multiple times. |
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| 28 | */ |
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| 29 | |||
| 30 | |||
| 31 | typedef struct fz_draw_device_s fz_draw_device; |
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| 32 | |||
| 33 | enum { |
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| 34 | FZ_DRAWDEV_FLAGS_TYPE3 = 1, |
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| 35 | }; |
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| 36 | |||
| 37 | struct fz_draw_device_s |
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| 38 | { |
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| 39 | fz_glyph_cache *cache; |
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| 40 | fz_gel *gel; |
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| 41 | |||
| 42 | fz_pixmap *dest; |
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| 43 | fz_pixmap *shape; |
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| 44 | fz_bbox scissor; |
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| 45 | |||
| 46 | int flags; |
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| 47 | int top; |
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| 48 | int blendmode; |
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| 49 | struct { |
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| 50 | fz_bbox scissor; |
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| 51 | fz_pixmap *dest; |
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| 52 | fz_pixmap *mask; |
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| 53 | fz_pixmap *shape; |
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| 54 | int blendmode; |
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| 55 | int luminosity; |
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| 56 | float alpha; |
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| 57 | fz_matrix ctm; |
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| 58 | float xstep, ystep; |
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| 59 | fz_rect area; |
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| 60 | } stack[STACK_SIZE]; |
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| 61 | }; |
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| 62 | |||
| 63 | #ifdef DUMP_GROUP_BLENDS |
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| 64 | static int group_dump_count = 0; |
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| 65 | |||
| 66 | static void fz_dump_blend(fz_pixmap *pix, const char *s) |
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| 67 | { |
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| 68 | char name[80]; |
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| 69 | |||
| 70 | if (pix == NULL) |
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| 71 | return; |
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| 72 | |||
| 73 | sprintf(name, "dump%02d.png", group_dump_count); |
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| 74 | if (s) |
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| 75 | printf("%s%02d", s, group_dump_count); |
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| 76 | group_dump_count++; |
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| 77 | |||
| 78 | fz_write_png(pix, name, (pix->n > 1)); |
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| 79 | } |
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| 80 | |||
| 81 | static void dump_spaces(int x, const char *s) |
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| 82 | { |
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| 83 | int i; |
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| 84 | for (i = 0; i < x; i++) |
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| 85 | printf(" "); |
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| 86 | printf("%s", s); |
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| 87 | } |
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| 88 | |||
| 89 | #endif |
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| 90 | |||
| 91 | static void fz_knockout_begin(void *user) |
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| 92 | { |
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| 93 | fz_draw_device *dev = user; |
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| 94 | fz_bbox bbox; |
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| 95 | fz_pixmap *dest, *shape; |
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| 96 | int isolated = dev->blendmode & FZ_BLEND_ISOLATED; |
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| 97 | |||
| 98 | if ((dev->blendmode & FZ_BLEND_KNOCKOUT) == 0) |
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| 99 | return; |
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| 100 | |||
| 101 | if (dev->top == STACK_SIZE) |
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| 102 | { |
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| 103 | fz_warn("assert: too many buffers on stack"); |
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| 104 | return; |
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| 105 | } |
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| 106 | |||
| 107 | bbox = fz_bound_pixmap(dev->dest); |
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| 108 | bbox = fz_intersect_bbox(bbox, dev->scissor); |
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| 109 | dest = fz_new_pixmap_with_rect(dev->dest->colorspace, bbox); |
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| 110 | |||
| 111 | if (isolated) |
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| 112 | { |
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| 113 | fz_clear_pixmap(dest); |
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| 114 | } |
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| 115 | else |
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| 116 | { |
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| 117 | fz_pixmap *prev; |
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| 118 | int i = dev->top; |
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| 119 | do |
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| 120 | prev = dev->stack[--i].dest; |
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| 121 | while (prev == NULL); |
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| 122 | fz_copy_pixmap_rect(dest, prev, bbox); |
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| 123 | } |
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| 124 | |||
| 125 | if (dev->blendmode == 0 && isolated) |
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| 126 | { |
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| 127 | /* We can render direct to any existing shape plane. If there |
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| 128 | * isn't one, we don't need to make one. */ |
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| 129 | shape = dev->shape; |
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| 130 | } |
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| 131 | else |
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| 132 | { |
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| 133 | shape = fz_new_pixmap_with_rect(NULL, bbox); |
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| 134 | fz_clear_pixmap(shape); |
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| 135 | } |
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| 136 | dev->stack[dev->top].blendmode = dev->blendmode; |
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| 137 | dev->stack[dev->top].scissor = dev->scissor; |
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| 138 | dev->stack[dev->top].dest = dev->dest; |
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| 139 | dev->stack[dev->top].shape = dev->shape; |
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| 140 | #ifdef DUMP_GROUP_BLENDS |
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| 141 | dump_spaces(dev->top, "Knockout begin\n"); |
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| 142 | #endif |
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| 143 | dev->top++; |
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| 144 | |||
| 145 | dev->scissor = bbox; |
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| 146 | dev->dest = dest; |
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| 147 | dev->shape = shape; |
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| 148 | dev->blendmode &= ~FZ_BLEND_MODEMASK; |
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| 149 | } |
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| 150 | |||
| 151 | static void fz_knockout_end(void *user) |
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| 152 | { |
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| 153 | fz_draw_device *dev = user; |
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| 154 | fz_pixmap *group = dev->dest; |
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| 155 | fz_pixmap *shape = dev->shape; |
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| 156 | int blendmode; |
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| 157 | int isolated; |
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| 158 | |||
| 159 | if ((dev->blendmode & FZ_BLEND_KNOCKOUT) == 0) |
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| 160 | return; |
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| 161 | |||
| 162 | if (dev->top == STACK_SIZE) |
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| 163 | { |
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| 164 | fz_warn("assert: too many buffers on stack"); |
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| 165 | return; |
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| 166 | } |
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| 167 | |||
| 168 | if (dev->top > 0) |
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| 169 | { |
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| 170 | dev->top--; |
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| 171 | blendmode = dev->blendmode & FZ_BLEND_MODEMASK; |
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| 172 | isolated = dev->blendmode & FZ_BLEND_ISOLATED; |
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| 173 | dev->blendmode = dev->stack[dev->top].blendmode; |
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| 174 | dev->shape = dev->stack[dev->top].shape; |
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| 175 | dev->dest = dev->stack[dev->top].dest; |
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| 176 | dev->scissor = dev->stack[dev->top].scissor; |
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| 177 | |||
| 178 | #ifdef DUMP_GROUP_BLENDS |
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| 179 | dump_spaces(dev->top, ""); |
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| 180 | fz_dump_blend(group, "Blending "); |
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| 181 | if (shape) |
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| 182 | fz_dump_blend(shape, "/"); |
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| 183 | fz_dump_blend(dev->dest, " onto "); |
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| 184 | if (dev->shape) |
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| 185 | fz_dump_blend(dev->shape, "/"); |
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| 186 | if (blendmode != 0) |
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| 187 | printf(" (blend %d)", blendmode); |
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| 188 | if (isolated != 0) |
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| 189 | printf(" (isolated)"); |
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| 190 | printf(" (knockout)"); |
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| 191 | #endif |
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| 192 | if ((blendmode == 0) && (shape == NULL)) |
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| 193 | fz_paint_pixmap(dev->dest, group, 255); |
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| 194 | else |
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| 195 | fz_blend_pixmap(dev->dest, group, 255, blendmode, isolated, shape); |
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| 196 | |||
| 197 | fz_drop_pixmap(group); |
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| 198 | if (shape != dev->shape) |
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| 199 | { |
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| 200 | if (dev->shape) |
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| 201 | { |
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| 202 | fz_paint_pixmap(dev->shape, shape, 255); |
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| 203 | } |
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| 204 | fz_drop_pixmap(shape); |
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| 205 | } |
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| 206 | #ifdef DUMP_GROUP_BLENDS |
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| 207 | fz_dump_blend(dev->dest, " to get "); |
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| 208 | if (dev->shape) |
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| 209 | fz_dump_blend(dev->shape, "/"); |
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| 210 | printf("\n"); |
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| 211 | #endif |
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| 212 | } |
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| 213 | } |
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| 214 | |||
| 215 | static void |
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| 216 | fz_draw_fill_path(void *user, fz_path *path, int even_odd, fz_matrix ctm, |
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| 217 | fz_colorspace *colorspace, float *color, float alpha) |
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| 218 | { |
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| 219 | fz_draw_device *dev = user; |
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| 220 | fz_colorspace *model = dev->dest->colorspace; |
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| 221 | float expansion = fz_matrix_expansion(ctm); |
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| 222 | float flatness = 0.3f / expansion; |
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| 223 | unsigned char colorbv[FZ_MAX_COLORS + 1]; |
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| 224 | float colorfv[FZ_MAX_COLORS]; |
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| 225 | fz_bbox bbox; |
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| 226 | int i; |
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| 227 | |||
| 228 | fz_reset_gel(dev->gel, dev->scissor); |
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| 229 | fz_flatten_fill_path(dev->gel, path, ctm, flatness); |
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| 230 | fz_sort_gel(dev->gel); |
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| 231 | |||
| 232 | bbox = fz_bound_gel(dev->gel); |
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| 233 | bbox = fz_intersect_bbox(bbox, dev->scissor); |
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| 234 | |||
| 235 | if (fz_is_empty_rect(bbox)) |
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| 236 | return; |
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| 237 | |||
| 238 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
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| 239 | fz_knockout_begin(dev); |
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| 240 | |||
| 241 | fz_convert_color(colorspace, color, model, colorfv); |
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| 242 | for (i = 0; i < model->n; i++) |
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| 243 | colorbv[i] = colorfv[i] * 255; |
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| 244 | colorbv[i] = alpha * 255; |
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| 245 | |||
| 246 | fz_scan_convert(dev->gel, even_odd, bbox, dev->dest, colorbv); |
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| 247 | if (dev->shape) |
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| 248 | { |
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| 249 | fz_reset_gel(dev->gel, dev->scissor); |
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| 250 | fz_flatten_fill_path(dev->gel, path, ctm, flatness); |
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| 251 | fz_sort_gel(dev->gel); |
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| 252 | |||
| 253 | colorbv[0] = alpha * 255; |
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| 254 | fz_scan_convert(dev->gel, even_odd, bbox, dev->shape, colorbv); |
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| 255 | } |
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| 256 | |||
| 257 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
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| 258 | fz_knockout_end(dev); |
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| 259 | } |
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| 260 | |||
| 261 | static void |
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| 262 | fz_draw_stroke_path(void *user, fz_path *path, fz_stroke_state *stroke, fz_matrix ctm, |
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| 263 | fz_colorspace *colorspace, float *color, float alpha) |
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| 264 | { |
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| 265 | fz_draw_device *dev = user; |
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| 266 | fz_colorspace *model = dev->dest->colorspace; |
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| 267 | float expansion = fz_matrix_expansion(ctm); |
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| 268 | float flatness = 0.3f / expansion; |
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| 269 | float linewidth = stroke->linewidth; |
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| 270 | unsigned char colorbv[FZ_MAX_COLORS + 1]; |
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| 271 | float colorfv[FZ_MAX_COLORS]; |
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| 272 | fz_bbox bbox; |
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| 273 | int i; |
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| 274 | |||
| 275 | if (linewidth * expansion < 0.1f) |
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| 276 | linewidth = 1 / expansion; |
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| 277 | |||
| 278 | fz_reset_gel(dev->gel, dev->scissor); |
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| 279 | if (stroke->dash_len > 0) |
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| 280 | fz_flatten_dash_path(dev->gel, path, stroke, ctm, flatness, linewidth); |
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| 281 | else |
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| 282 | fz_flatten_stroke_path(dev->gel, path, stroke, ctm, flatness, linewidth); |
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| 283 | fz_sort_gel(dev->gel); |
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| 284 | |||
| 285 | bbox = fz_bound_gel(dev->gel); |
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| 286 | bbox = fz_intersect_bbox(bbox, dev->scissor); |
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| 287 | |||
| 288 | if (fz_is_empty_rect(bbox)) |
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| 289 | return; |
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| 290 | |||
| 291 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
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| 292 | fz_knockout_begin(dev); |
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| 293 | |||
| 294 | fz_convert_color(colorspace, color, model, colorfv); |
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| 295 | for (i = 0; i < model->n; i++) |
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| 296 | colorbv[i] = colorfv[i] * 255; |
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| 297 | colorbv[i] = alpha * 255; |
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| 298 | |||
| 299 | fz_scan_convert(dev->gel, 0, bbox, dev->dest, colorbv); |
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| 300 | if (dev->shape) |
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| 301 | { |
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| 302 | fz_reset_gel(dev->gel, dev->scissor); |
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| 303 | if (stroke->dash_len > 0) |
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| 304 | fz_flatten_dash_path(dev->gel, path, stroke, ctm, flatness, linewidth); |
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| 305 | else |
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| 306 | fz_flatten_stroke_path(dev->gel, path, stroke, ctm, flatness, linewidth); |
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| 307 | fz_sort_gel(dev->gel); |
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| 308 | |||
| 309 | colorbv[0] = 255; |
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| 310 | fz_scan_convert(dev->gel, 0, bbox, dev->shape, colorbv); |
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| 311 | } |
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| 312 | |||
| 313 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
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| 314 | fz_knockout_end(dev); |
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| 315 | } |
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| 316 | |||
| 317 | static void |
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| 318 | fz_draw_clip_path(void *user, fz_path *path, fz_rect *rect, int even_odd, fz_matrix ctm) |
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| 319 | { |
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| 320 | fz_draw_device *dev = user; |
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| 321 | fz_colorspace *model = dev->dest->colorspace; |
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| 322 | float expansion = fz_matrix_expansion(ctm); |
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| 323 | float flatness = 0.3f / expansion; |
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| 324 | fz_pixmap *mask, *dest, *shape; |
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| 325 | fz_bbox bbox; |
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| 326 | |||
| 327 | if (dev->top == STACK_SIZE) |
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| 328 | { |
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| 329 | fz_warn("assert: too many buffers on stack"); |
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| 330 | return; |
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| 331 | } |
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| 332 | |||
| 333 | fz_reset_gel(dev->gel, dev->scissor); |
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| 334 | fz_flatten_fill_path(dev->gel, path, ctm, flatness); |
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| 335 | fz_sort_gel(dev->gel); |
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| 336 | |||
| 337 | bbox = fz_bound_gel(dev->gel); |
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| 338 | bbox = fz_intersect_bbox(bbox, dev->scissor); |
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| 339 | if (rect) |
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| 340 | bbox = fz_intersect_bbox(bbox, fz_round_rect(*rect)); |
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| 341 | |||
| 342 | if (fz_is_empty_rect(bbox) || fz_is_rect_gel(dev->gel)) |
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| 343 | { |
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| 344 | dev->stack[dev->top].scissor = dev->scissor; |
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| 345 | dev->stack[dev->top].mask = NULL; |
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| 346 | dev->stack[dev->top].dest = NULL; |
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| 347 | dev->stack[dev->top].shape = dev->shape; |
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| 348 | dev->stack[dev->top].blendmode = dev->blendmode; |
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| 349 | dev->scissor = bbox; |
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| 350 | #ifdef DUMP_GROUP_BLENDS |
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| 351 | dump_spaces(dev->top, "Clip (rectangular) begin\n"); |
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| 352 | #endif |
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| 353 | dev->top++; |
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| 354 | return; |
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| 355 | } |
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| 356 | |||
| 357 | mask = fz_new_pixmap_with_rect(NULL, bbox); |
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| 358 | fz_clear_pixmap(mask); |
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| 359 | dest = fz_new_pixmap_with_rect(model, bbox); |
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| 360 | /* FIXME: See note #1 */ |
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| 361 | fz_clear_pixmap(dest); |
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| 362 | if (dev->shape) |
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| 363 | { |
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| 364 | shape = fz_new_pixmap_with_rect(NULL, bbox); |
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| 365 | fz_clear_pixmap(shape); |
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| 366 | } |
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| 367 | else |
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| 368 | shape = NULL; |
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| 369 | |||
| 370 | fz_scan_convert(dev->gel, even_odd, bbox, mask, NULL); |
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| 371 | |||
| 372 | dev->stack[dev->top].scissor = dev->scissor; |
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| 373 | dev->stack[dev->top].mask = mask; |
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| 374 | dev->stack[dev->top].dest = dev->dest; |
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| 375 | dev->stack[dev->top].shape = dev->shape; |
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| 376 | /* FIXME: See note #1 */ |
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| 377 | dev->stack[dev->top].blendmode = dev->blendmode | FZ_BLEND_ISOLATED; |
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| 378 | dev->scissor = bbox; |
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| 379 | dev->dest = dest; |
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| 380 | dev->shape = shape; |
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| 381 | #ifdef DUMP_GROUP_BLENDS |
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| 382 | dump_spaces(dev->top, "Clip (non-rectangular) begin\n"); |
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| 383 | #endif |
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| 384 | dev->top++; |
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| 385 | } |
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| 386 | |||
| 387 | static void |
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| 388 | fz_draw_clip_stroke_path(void *user, fz_path *path, fz_rect *rect, fz_stroke_state *stroke, fz_matrix ctm) |
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| 389 | { |
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| 390 | fz_draw_device *dev = user; |
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| 391 | fz_colorspace *model = dev->dest->colorspace; |
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| 392 | float expansion = fz_matrix_expansion(ctm); |
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| 393 | float flatness = 0.3f / expansion; |
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| 394 | float linewidth = stroke->linewidth; |
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| 395 | fz_pixmap *mask, *dest, *shape; |
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| 396 | fz_bbox bbox; |
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| 397 | |||
| 398 | if (dev->top == STACK_SIZE) |
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| 399 | { |
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| 400 | fz_warn("assert: too many buffers on stack"); |
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| 401 | return; |
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| 402 | } |
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| 403 | |||
| 404 | if (linewidth * expansion < 0.1f) |
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| 405 | linewidth = 1 / expansion; |
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| 406 | |||
| 407 | fz_reset_gel(dev->gel, dev->scissor); |
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| 408 | if (stroke->dash_len > 0) |
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| 409 | fz_flatten_dash_path(dev->gel, path, stroke, ctm, flatness, linewidth); |
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| 410 | else |
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| 411 | fz_flatten_stroke_path(dev->gel, path, stroke, ctm, flatness, linewidth); |
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| 412 | fz_sort_gel(dev->gel); |
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| 413 | |||
| 414 | bbox = fz_bound_gel(dev->gel); |
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| 415 | bbox = fz_intersect_bbox(bbox, dev->scissor); |
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| 416 | if (rect) |
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| 417 | bbox = fz_intersect_bbox(bbox, fz_round_rect(*rect)); |
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| 418 | |||
| 419 | mask = fz_new_pixmap_with_rect(NULL, bbox); |
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| 420 | fz_clear_pixmap(mask); |
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| 421 | dest = fz_new_pixmap_with_rect(model, bbox); |
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| 422 | /* FIXME: See note #1 */ |
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| 423 | fz_clear_pixmap(dest); |
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| 424 | if (dev->shape) |
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| 425 | { |
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| 426 | shape = fz_new_pixmap_with_rect(NULL, bbox); |
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| 427 | fz_clear_pixmap(shape); |
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| 428 | } |
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| 429 | else |
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| 430 | shape = NULL; |
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| 431 | |||
| 432 | if (!fz_is_empty_rect(bbox)) |
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| 433 | fz_scan_convert(dev->gel, 0, bbox, mask, NULL); |
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| 434 | |||
| 435 | dev->stack[dev->top].scissor = dev->scissor; |
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| 436 | dev->stack[dev->top].mask = mask; |
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| 437 | dev->stack[dev->top].dest = dev->dest; |
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| 438 | dev->stack[dev->top].shape = dev->shape; |
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| 439 | /* FIXME: See note #1 */ |
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| 440 | dev->stack[dev->top].blendmode = dev->blendmode | FZ_BLEND_ISOLATED; |
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| 441 | dev->scissor = bbox; |
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| 442 | dev->dest = dest; |
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| 443 | dev->shape = shape; |
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| 444 | #ifdef DUMP_GROUP_BLENDS |
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| 445 | dump_spaces(dev->top, "Clip (stroke) begin\n"); |
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| 446 | #endif |
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| 447 | dev->top++; |
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| 448 | } |
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| 449 | |||
| 450 | static void |
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| 451 | draw_glyph(unsigned char *colorbv, fz_pixmap *dst, fz_pixmap *msk, |
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| 452 | int xorig, int yorig, fz_bbox scissor) |
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| 453 | { |
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| 454 | unsigned char *dp, *mp; |
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| 455 | fz_bbox bbox; |
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| 456 | int x, y, w, h; |
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| 457 | |||
| 458 | bbox = fz_bound_pixmap(msk); |
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| 459 | bbox.x0 += xorig; |
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| 460 | bbox.y0 += yorig; |
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| 461 | bbox.x1 += xorig; |
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| 462 | bbox.y1 += yorig; |
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| 463 | |||
| 464 | bbox = fz_intersect_bbox(bbox, scissor); /* scissor < dst */ |
||
| 465 | x = bbox.x0; |
||
| 466 | y = bbox.y0; |
||
| 467 | w = bbox.x1 - bbox.x0; |
||
| 468 | h = bbox.y1 - bbox.y0; |
||
| 469 | |||
| 470 | mp = msk->samples + ((y - msk->y - yorig) * msk->w + (x - msk->x - xorig)); |
||
| 471 | dp = dst->samples + ((y - dst->y) * dst->w + (x - dst->x)) * dst->n; |
||
| 472 | |||
| 473 | assert(msk->n == 1); |
||
| 474 | |||
| 475 | while (h--) |
||
| 476 | { |
||
| 477 | if (dst->colorspace) |
||
| 478 | fz_paint_span_with_color(dp, mp, dst->n, w, colorbv); |
||
| 479 | else |
||
| 480 | fz_paint_span(dp, mp, 1, w, 255); |
||
| 481 | dp += dst->w * dst->n; |
||
| 482 | mp += msk->w; |
||
| 483 | } |
||
| 484 | } |
||
| 485 | |||
| 486 | static void |
||
| 487 | fz_draw_fill_text(void *user, fz_text *text, fz_matrix ctm, |
||
| 488 | fz_colorspace *colorspace, float *color, float alpha) |
||
| 489 | { |
||
| 490 | fz_draw_device *dev = user; |
||
| 491 | fz_colorspace *model = dev->dest->colorspace; |
||
| 492 | unsigned char colorbv[FZ_MAX_COLORS + 1]; |
||
| 493 | unsigned char shapebv; |
||
| 494 | float colorfv[FZ_MAX_COLORS]; |
||
| 495 | fz_matrix tm, trm; |
||
| 496 | fz_pixmap *glyph; |
||
| 497 | int i, x, y, gid; |
||
| 498 | |||
| 499 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 500 | fz_knockout_begin(dev); |
||
| 501 | |||
| 502 | fz_convert_color(colorspace, color, model, colorfv); |
||
| 503 | for (i = 0; i < model->n; i++) |
||
| 504 | colorbv[i] = colorfv[i] * 255; |
||
| 505 | colorbv[i] = alpha * 255; |
||
| 506 | shapebv = 255; |
||
| 507 | |||
| 508 | tm = text->trm; |
||
| 509 | |||
| 510 | for (i = 0; i < text->len; i++) |
||
| 511 | { |
||
| 512 | gid = text->items[i].gid; |
||
| 513 | if (gid < 0) |
||
| 514 | continue; |
||
| 515 | |||
| 516 | tm.e = text->items[i].x; |
||
| 517 | tm.f = text->items[i].y; |
||
| 518 | trm = fz_concat(tm, ctm); |
||
| 519 | x = floorf(trm.e); |
||
| 520 | y = floorf(trm.f); |
||
| 521 | trm.e = QUANT(trm.e - floorf(trm.e), HSUBPIX); |
||
| 522 | trm.f = QUANT(trm.f - floorf(trm.f), VSUBPIX); |
||
| 523 | |||
| 524 | glyph = fz_render_glyph(dev->cache, text->font, gid, trm, model); |
||
| 525 | if (glyph) |
||
| 526 | { |
||
| 527 | if (glyph->n == 1) |
||
| 528 | { |
||
| 529 | draw_glyph(colorbv, dev->dest, glyph, x, y, dev->scissor); |
||
| 530 | if (dev->shape) |
||
| 531 | draw_glyph(&shapebv, dev->shape, glyph, x, y, dev->scissor); |
||
| 532 | } |
||
| 533 | else |
||
| 534 | { |
||
| 535 | fz_matrix ctm = {glyph->w, 0.0, 0.0, -glyph->h, x + glyph->x, y + glyph->y + glyph->h}; |
||
| 536 | fz_paint_image(dev->dest, dev->scissor, dev->shape, glyph, ctm, alpha * 255); |
||
| 537 | } |
||
| 538 | fz_drop_pixmap(glyph); |
||
| 539 | } |
||
| 540 | } |
||
| 541 | |||
| 542 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 543 | fz_knockout_end(dev); |
||
| 544 | } |
||
| 545 | |||
| 546 | static void |
||
| 547 | fz_draw_stroke_text(void *user, fz_text *text, fz_stroke_state *stroke, fz_matrix ctm, |
||
| 548 | fz_colorspace *colorspace, float *color, float alpha) |
||
| 549 | { |
||
| 550 | fz_draw_device *dev = user; |
||
| 551 | fz_colorspace *model = dev->dest->colorspace; |
||
| 552 | unsigned char colorbv[FZ_MAX_COLORS + 1]; |
||
| 553 | float colorfv[FZ_MAX_COLORS]; |
||
| 554 | fz_matrix tm, trm; |
||
| 555 | fz_pixmap *glyph; |
||
| 556 | int i, x, y, gid; |
||
| 557 | |||
| 558 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 559 | fz_knockout_begin(dev); |
||
| 560 | |||
| 561 | fz_convert_color(colorspace, color, model, colorfv); |
||
| 562 | for (i = 0; i < model->n; i++) |
||
| 563 | colorbv[i] = colorfv[i] * 255; |
||
| 564 | colorbv[i] = alpha * 255; |
||
| 565 | |||
| 566 | tm = text->trm; |
||
| 567 | |||
| 568 | for (i = 0; i < text->len; i++) |
||
| 569 | { |
||
| 570 | gid = text->items[i].gid; |
||
| 571 | if (gid < 0) |
||
| 572 | continue; |
||
| 573 | |||
| 574 | tm.e = text->items[i].x; |
||
| 575 | tm.f = text->items[i].y; |
||
| 576 | trm = fz_concat(tm, ctm); |
||
| 577 | x = floorf(trm.e); |
||
| 578 | y = floorf(trm.f); |
||
| 579 | trm.e = QUANT(trm.e - floorf(trm.e), HSUBPIX); |
||
| 580 | trm.f = QUANT(trm.f - floorf(trm.f), VSUBPIX); |
||
| 581 | |||
| 582 | glyph = fz_render_stroked_glyph(dev->cache, text->font, gid, trm, ctm, stroke); |
||
| 583 | if (glyph) |
||
| 584 | { |
||
| 585 | draw_glyph(colorbv, dev->dest, glyph, x, y, dev->scissor); |
||
| 586 | if (dev->shape) |
||
| 587 | draw_glyph(colorbv, dev->shape, glyph, x, y, dev->scissor); |
||
| 588 | fz_drop_pixmap(glyph); |
||
| 589 | } |
||
| 590 | } |
||
| 591 | |||
| 592 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 593 | fz_knockout_end(dev); |
||
| 594 | } |
||
| 595 | |||
| 596 | static void |
||
| 597 | fz_draw_clip_text(void *user, fz_text *text, fz_matrix ctm, int accumulate) |
||
| 598 | { |
||
| 599 | fz_draw_device *dev = user; |
||
| 600 | fz_colorspace *model = dev->dest->colorspace; |
||
| 601 | fz_bbox bbox; |
||
| 602 | fz_pixmap *mask, *dest, *shape; |
||
| 603 | fz_matrix tm, trm; |
||
| 604 | fz_pixmap *glyph; |
||
| 605 | int i, x, y, gid; |
||
| 606 | |||
| 607 | /* If accumulate == 0 then this text object is guaranteed complete */ |
||
| 608 | /* If accumulate == 1 then this text object is the first (or only) in a sequence */ |
||
| 609 | /* If accumulate == 2 then this text object is a continuation */ |
||
| 610 | |||
| 611 | if (dev->top == STACK_SIZE) |
||
| 612 | { |
||
| 613 | fz_warn("assert: too many buffers on stack"); |
||
| 614 | return; |
||
| 615 | } |
||
| 616 | |||
| 617 | if (accumulate == 0) |
||
| 618 | { |
||
| 619 | /* make the mask the exact size needed */ |
||
| 620 | bbox = fz_round_rect(fz_bound_text(text, ctm)); |
||
| 621 | bbox = fz_intersect_bbox(bbox, dev->scissor); |
||
| 622 | } |
||
| 623 | else |
||
| 624 | { |
||
| 625 | /* be conservative about the size of the mask needed */ |
||
| 626 | bbox = dev->scissor; |
||
| 627 | } |
||
| 628 | |||
| 629 | if (accumulate == 0 || accumulate == 1) |
||
| 630 | { |
||
| 631 | mask = fz_new_pixmap_with_rect(NULL, bbox); |
||
| 632 | fz_clear_pixmap(mask); |
||
| 633 | dest = fz_new_pixmap_with_rect(model, bbox); |
||
| 634 | /* FIXME: See note #1 */ |
||
| 635 | fz_clear_pixmap(dest); |
||
| 636 | if (dev->shape) |
||
| 637 | { |
||
| 638 | shape = fz_new_pixmap_with_rect(NULL, bbox); |
||
| 639 | fz_clear_pixmap(shape); |
||
| 640 | } |
||
| 641 | else |
||
| 642 | shape = NULL; |
||
| 643 | |||
| 644 | dev->stack[dev->top].scissor = dev->scissor; |
||
| 645 | dev->stack[dev->top].mask = mask; |
||
| 646 | dev->stack[dev->top].dest = dev->dest; |
||
| 647 | dev->stack[dev->top].shape = dev->shape; |
||
| 648 | /* FIXME: See note #1 */ |
||
| 649 | dev->stack[dev->top].blendmode = dev->blendmode | FZ_BLEND_ISOLATED; |
||
| 650 | dev->scissor = bbox; |
||
| 651 | dev->dest = dest; |
||
| 652 | dev->shape = shape; |
||
| 653 | #ifdef DUMP_GROUP_BLENDS |
||
| 654 | dump_spaces(dev->top, "Clip (text) begin\n"); |
||
| 655 | #endif |
||
| 656 | dev->top++; |
||
| 657 | } |
||
| 658 | else |
||
| 659 | { |
||
| 660 | mask = dev->stack[dev->top-1].mask; |
||
| 661 | } |
||
| 662 | |||
| 663 | if (!fz_is_empty_rect(bbox)) |
||
| 664 | { |
||
| 665 | tm = text->trm; |
||
| 666 | |||
| 667 | for (i = 0; i < text->len; i++) |
||
| 668 | { |
||
| 669 | gid = text->items[i].gid; |
||
| 670 | if (gid < 0) |
||
| 671 | continue; |
||
| 672 | |||
| 673 | tm.e = text->items[i].x; |
||
| 674 | tm.f = text->items[i].y; |
||
| 675 | trm = fz_concat(tm, ctm); |
||
| 676 | x = floorf(trm.e); |
||
| 677 | y = floorf(trm.f); |
||
| 678 | trm.e = QUANT(trm.e - floorf(trm.e), HSUBPIX); |
||
| 679 | trm.f = QUANT(trm.f - floorf(trm.f), VSUBPIX); |
||
| 680 | |||
| 681 | glyph = fz_render_glyph(dev->cache, text->font, gid, trm, model); |
||
| 682 | if (glyph) |
||
| 683 | { |
||
| 684 | draw_glyph(NULL, mask, glyph, x, y, bbox); |
||
| 685 | if (dev->shape) |
||
| 686 | draw_glyph(NULL, dev->shape, glyph, x, y, bbox); |
||
| 687 | fz_drop_pixmap(glyph); |
||
| 688 | } |
||
| 689 | } |
||
| 690 | } |
||
| 691 | } |
||
| 692 | |||
| 693 | static void |
||
| 694 | fz_draw_clip_stroke_text(void *user, fz_text *text, fz_stroke_state *stroke, fz_matrix ctm) |
||
| 695 | { |
||
| 696 | fz_draw_device *dev = user; |
||
| 697 | fz_colorspace *model = dev->dest->colorspace; |
||
| 698 | fz_bbox bbox; |
||
| 699 | fz_pixmap *mask, *dest, *shape; |
||
| 700 | fz_matrix tm, trm; |
||
| 701 | fz_pixmap *glyph; |
||
| 702 | int i, x, y, gid; |
||
| 703 | |||
| 704 | if (dev->top == STACK_SIZE) |
||
| 705 | { |
||
| 706 | fz_warn("assert: too many buffers on stack"); |
||
| 707 | return; |
||
| 708 | } |
||
| 709 | |||
| 710 | /* make the mask the exact size needed */ |
||
| 711 | bbox = fz_round_rect(fz_bound_text(text, ctm)); |
||
| 712 | bbox = fz_intersect_bbox(bbox, dev->scissor); |
||
| 713 | |||
| 714 | mask = fz_new_pixmap_with_rect(NULL, bbox); |
||
| 715 | fz_clear_pixmap(mask); |
||
| 716 | dest = fz_new_pixmap_with_rect(model, bbox); |
||
| 717 | /* FIXME: See note #1 */ |
||
| 718 | fz_clear_pixmap(dest); |
||
| 719 | if (dev->shape) |
||
| 720 | { |
||
| 721 | shape = fz_new_pixmap_with_rect(NULL, bbox); |
||
| 722 | fz_clear_pixmap(shape); |
||
| 723 | } |
||
| 724 | else |
||
| 725 | shape = dev->shape; |
||
| 726 | |||
| 727 | dev->stack[dev->top].scissor = dev->scissor; |
||
| 728 | dev->stack[dev->top].mask = mask; |
||
| 729 | dev->stack[dev->top].dest = dev->dest; |
||
| 730 | dev->stack[dev->top].shape = dev->shape; |
||
| 731 | /* FIXME: See note #1 */ |
||
| 732 | dev->stack[dev->top].blendmode = dev->blendmode | FZ_BLEND_ISOLATED; |
||
| 733 | dev->scissor = bbox; |
||
| 734 | dev->dest = dest; |
||
| 735 | dev->shape = shape; |
||
| 736 | #ifdef DUMP_GROUP_BLENDS |
||
| 737 | dump_spaces(dev->top, "Clip (stroke text) begin\n"); |
||
| 738 | #endif |
||
| 739 | dev->top++; |
||
| 740 | |||
| 741 | if (!fz_is_empty_rect(bbox)) |
||
| 742 | { |
||
| 743 | tm = text->trm; |
||
| 744 | |||
| 745 | for (i = 0; i < text->len; i++) |
||
| 746 | { |
||
| 747 | gid = text->items[i].gid; |
||
| 748 | if (gid < 0) |
||
| 749 | continue; |
||
| 750 | |||
| 751 | tm.e = text->items[i].x; |
||
| 752 | tm.f = text->items[i].y; |
||
| 753 | trm = fz_concat(tm, ctm); |
||
| 754 | x = floorf(trm.e); |
||
| 755 | y = floorf(trm.f); |
||
| 756 | trm.e = QUANT(trm.e - floorf(trm.e), HSUBPIX); |
||
| 757 | trm.f = QUANT(trm.f - floorf(trm.f), VSUBPIX); |
||
| 758 | |||
| 759 | glyph = fz_render_stroked_glyph(dev->cache, text->font, gid, trm, ctm, stroke); |
||
| 760 | if (glyph) |
||
| 761 | { |
||
| 762 | draw_glyph(NULL, mask, glyph, x, y, bbox); |
||
| 763 | if (dev->shape) |
||
| 764 | draw_glyph(NULL, dev->shape, glyph, x, y, bbox); |
||
| 765 | fz_drop_pixmap(glyph); |
||
| 766 | } |
||
| 767 | } |
||
| 768 | } |
||
| 769 | } |
||
| 770 | |||
| 771 | static void |
||
| 772 | fz_draw_ignore_text(void *user, fz_text *text, fz_matrix ctm) |
||
| 773 | { |
||
| 774 | } |
||
| 775 | |||
| 776 | static void |
||
| 777 | fz_draw_fill_shade(void *user, fz_shade *shade, fz_matrix ctm, float alpha) |
||
| 778 | { |
||
| 779 | fz_draw_device *dev = user; |
||
| 780 | fz_colorspace *model = dev->dest->colorspace; |
||
| 781 | fz_pixmap *dest = dev->dest; |
||
| 782 | fz_rect bounds; |
||
| 783 | fz_bbox bbox, scissor; |
||
| 784 | float colorfv[FZ_MAX_COLORS]; |
||
| 785 | unsigned char colorbv[FZ_MAX_COLORS + 1]; |
||
| 786 | |||
| 787 | bounds = fz_bound_shade(shade, ctm); |
||
| 788 | bbox = fz_intersect_bbox(fz_round_rect(bounds), dev->scissor); |
||
| 789 | scissor = dev->scissor; |
||
| 790 | |||
| 791 | // TODO: proper clip by shade->bbox |
||
| 792 | |||
| 793 | if (fz_is_empty_rect(bbox)) |
||
| 794 | return; |
||
| 795 | |||
| 796 | if (!model) |
||
| 797 | { |
||
| 798 | fz_warn("cannot render shading directly to an alpha mask"); |
||
| 799 | return; |
||
| 800 | } |
||
| 801 | |||
| 802 | if (alpha < 1) |
||
| 803 | { |
||
| 804 | dest = fz_new_pixmap_with_rect(dev->dest->colorspace, bbox); |
||
| 805 | fz_clear_pixmap(dest); |
||
| 806 | } |
||
| 807 | |||
| 808 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 809 | fz_knockout_begin(dev); |
||
| 810 | |||
| 811 | if (shade->use_background) |
||
| 812 | { |
||
| 813 | unsigned char *s; |
||
| 814 | int x, y, n, i; |
||
| 815 | fz_convert_color(shade->colorspace, shade->background, model, colorfv); |
||
| 816 | for (i = 0; i < model->n; i++) |
||
| 817 | colorbv[i] = colorfv[i] * 255; |
||
| 818 | colorbv[i] = 255; |
||
| 819 | |||
| 820 | n = dest->n; |
||
| 821 | for (y = scissor.y0; y < scissor.y1; y++) |
||
| 822 | { |
||
| 823 | s = dest->samples + ((scissor.x0 - dest->x) + (y - dest->y) * dest->w) * dest->n; |
||
| 824 | for (x = scissor.x0; x < scissor.x1; x++) |
||
| 825 | { |
||
| 826 | for (i = 0; i < n; i++) |
||
| 827 | *s++ = colorbv[i]; |
||
| 828 | } |
||
| 829 | } |
||
| 830 | if (dev->shape) |
||
| 831 | { |
||
| 832 | for (y = scissor.y0; y < scissor.y1; y++) |
||
| 833 | { |
||
| 834 | s = dev->shape->samples + (scissor.x0 - dev->shape->x) + (y - dev->shape->y) * dev->shape->w; |
||
| 835 | for (x = scissor.x0; x < scissor.x1; x++) |
||
| 836 | { |
||
| 837 | *s++ = 255; |
||
| 838 | } |
||
| 839 | } |
||
| 840 | } |
||
| 841 | } |
||
| 842 | |||
| 843 | fz_paint_shade(shade, ctm, dest, bbox); |
||
| 844 | if (dev->shape) |
||
| 845 | fz_clear_pixmap_rect_with_color(dev->shape, 255, bbox); |
||
| 846 | |||
| 847 | if (alpha < 1) |
||
| 848 | { |
||
| 849 | fz_paint_pixmap(dev->dest, dest, alpha * 255); |
||
| 850 | fz_drop_pixmap(dest); |
||
| 851 | } |
||
| 852 | |||
| 853 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 854 | fz_knockout_end(dev); |
||
| 855 | } |
||
| 856 | |||
| 857 | static fz_pixmap * |
||
| 858 | fz_transform_pixmap(fz_pixmap *image, fz_matrix *ctm, int x, int y, int dx, int dy, int gridfit) |
||
| 859 | { |
||
| 860 | fz_pixmap *scaled; |
||
| 861 | |||
| 862 | if (ctm->a != 0 && ctm->b == 0 && ctm->c == 0 && ctm->d != 0) |
||
| 863 | { |
||
| 864 | /* Unrotated or X-flip or Y-flip or XY-flip */ |
||
| 865 | scaled = fz_scale_pixmap_gridfit(image, ctm->e, ctm->f, ctm->a, ctm->d, gridfit); |
||
| 866 | if (scaled == NULL) |
||
| 867 | return NULL; |
||
| 868 | ctm->a = scaled->w; |
||
| 869 | ctm->d = scaled->h; |
||
| 870 | ctm->e = scaled->x; |
||
| 871 | ctm->f = scaled->y; |
||
| 872 | return scaled; |
||
| 873 | } |
||
| 874 | |||
| 875 | if (ctm->a == 0 && ctm->b != 0 && ctm->c != 0 && ctm->d == 0) |
||
| 876 | { |
||
| 877 | /* Other orthogonal flip/rotation cases */ |
||
| 878 | scaled = fz_scale_pixmap_gridfit(image, ctm->f, ctm->e, ctm->b, ctm->c, gridfit); |
||
| 879 | if (scaled == NULL) |
||
| 880 | return NULL; |
||
| 881 | ctm->b = scaled->w; |
||
| 882 | ctm->c = scaled->h; |
||
| 883 | ctm->f = scaled->x; |
||
| 884 | ctm->e = scaled->y; |
||
| 885 | return scaled; |
||
| 886 | } |
||
| 887 | |||
| 888 | /* Downscale, non rectilinear case */ |
||
| 889 | if (dx > 0 && dy > 0) |
||
| 890 | { |
||
| 891 | scaled = fz_scale_pixmap(image, 0, 0, (float)dx, (float)dy); |
||
| 892 | return scaled; |
||
| 893 | } |
||
| 894 | |||
| 895 | return NULL; |
||
| 896 | } |
||
| 897 | |||
| 898 | static void |
||
| 899 | fz_draw_fill_image(void *user, fz_pixmap *image, fz_matrix ctm, float alpha) |
||
| 900 | { |
||
| 901 | fz_draw_device *dev = user; |
||
| 902 | fz_colorspace *model = dev->dest->colorspace; |
||
| 903 | fz_pixmap *converted = NULL; |
||
| 904 | fz_pixmap *scaled = NULL; |
||
| 905 | int after; |
||
| 906 | int dx, dy; |
||
| 907 | |||
| 908 | if (!model) |
||
| 909 | { |
||
| 910 | fz_warn("cannot render image directly to an alpha mask"); |
||
| 911 | return; |
||
| 912 | } |
||
| 913 | |||
| 914 | if (image->w == 0 || image->h == 0) |
||
| 915 | return; |
||
| 916 | |||
| 917 | /* convert images with more components (cmyk->rgb) before scaling */ |
||
| 918 | /* convert images with fewer components (gray->rgb after scaling */ |
||
| 919 | /* convert images with expensive colorspace transforms after scaling */ |
||
| 920 | |||
| 921 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 922 | fz_knockout_begin(dev); |
||
| 923 | |||
| 924 | after = 0; |
||
| 925 | if (image->colorspace == fz_device_gray) |
||
| 926 | after = 1; |
||
| 927 | |||
| 928 | if (image->colorspace != model && !after) |
||
| 929 | { |
||
| 930 | converted = fz_new_pixmap_with_rect(model, fz_bound_pixmap(image)); |
||
| 931 | fz_convert_pixmap(image, converted); |
||
| 932 | image = converted; |
||
| 933 | } |
||
| 934 | |||
| 935 | dx = sqrtf(ctm.a * ctm.a + ctm.b * ctm.b); |
||
| 936 | dy = sqrtf(ctm.c * ctm.c + ctm.d * ctm.d); |
||
| 937 | if (dx < image->w && dy < image->h) |
||
| 938 | { |
||
| 939 | int gridfit = alpha == 1.0f && !(dev->flags & FZ_DRAWDEV_FLAGS_TYPE3); |
||
| 940 | scaled = fz_transform_pixmap(image, &ctm, dev->dest->x, dev->dest->y, dx, dy, gridfit); |
||
| 941 | if (scaled == NULL) |
||
| 942 | { |
||
| 943 | if (dx < 1) |
||
| 944 | dx = 1; |
||
| 945 | if (dy < 1) |
||
| 946 | dy = 1; |
||
| 947 | scaled = fz_scale_pixmap(image, image->x, image->y, dx, dy); |
||
| 948 | } |
||
| 949 | if (scaled != NULL) |
||
| 950 | image = scaled; |
||
| 951 | } |
||
| 952 | |||
| 953 | if (image->colorspace != model) |
||
| 954 | { |
||
| 955 | if ((image->colorspace == fz_device_gray && model == fz_device_rgb) || |
||
| 956 | (image->colorspace == fz_device_gray && model == fz_device_bgr)) |
||
| 957 | { |
||
| 958 | /* We have special case rendering code for gray -> rgb/bgr */ |
||
| 959 | } |
||
| 960 | else |
||
| 961 | { |
||
| 962 | converted = fz_new_pixmap_with_rect(model, fz_bound_pixmap(image)); |
||
| 963 | fz_convert_pixmap(image, converted); |
||
| 964 | image = converted; |
||
| 965 | } |
||
| 966 | } |
||
| 967 | |||
| 968 | fz_paint_image(dev->dest, dev->scissor, dev->shape, image, ctm, alpha * 255); |
||
| 969 | |||
| 970 | if (scaled) |
||
| 971 | fz_drop_pixmap(scaled); |
||
| 972 | if (converted) |
||
| 973 | fz_drop_pixmap(converted); |
||
| 974 | |||
| 975 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 976 | fz_knockout_end(dev); |
||
| 977 | } |
||
| 978 | |||
| 979 | static void |
||
| 980 | fz_draw_fill_image_mask(void *user, fz_pixmap *image, fz_matrix ctm, |
||
| 981 | fz_colorspace *colorspace, float *color, float alpha) |
||
| 982 | { |
||
| 983 | fz_draw_device *dev = user; |
||
| 984 | fz_colorspace *model = dev->dest->colorspace; |
||
| 985 | unsigned char colorbv[FZ_MAX_COLORS + 1]; |
||
| 986 | float colorfv[FZ_MAX_COLORS]; |
||
| 987 | fz_pixmap *scaled = NULL; |
||
| 988 | int dx, dy; |
||
| 989 | int i; |
||
| 990 | |||
| 991 | if (image->w == 0 || image->h == 0) |
||
| 992 | return; |
||
| 993 | |||
| 994 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 995 | fz_knockout_begin(dev); |
||
| 996 | |||
| 997 | dx = sqrtf(ctm.a * ctm.a + ctm.b * ctm.b); |
||
| 998 | dy = sqrtf(ctm.c * ctm.c + ctm.d * ctm.d); |
||
| 999 | if (dx < image->w && dy < image->h) |
||
| 1000 | { |
||
| 1001 | int gridfit = alpha == 1.0f && !(dev->flags & FZ_DRAWDEV_FLAGS_TYPE3); |
||
| 1002 | scaled = fz_transform_pixmap(image, &ctm, dev->dest->x, dev->dest->y, dx, dy, gridfit); |
||
| 1003 | if (scaled == NULL) |
||
| 1004 | { |
||
| 1005 | if (dx < 1) |
||
| 1006 | dx = 1; |
||
| 1007 | if (dy < 1) |
||
| 1008 | dy = 1; |
||
| 1009 | scaled = fz_scale_pixmap(image, image->x, image->y, dx, dy); |
||
| 1010 | } |
||
| 1011 | if (scaled != NULL) |
||
| 1012 | image = scaled; |
||
| 1013 | } |
||
| 1014 | |||
| 1015 | fz_convert_color(colorspace, color, model, colorfv); |
||
| 1016 | for (i = 0; i < model->n; i++) |
||
| 1017 | colorbv[i] = colorfv[i] * 255; |
||
| 1018 | colorbv[i] = alpha * 255; |
||
| 1019 | |||
| 1020 | fz_paint_image_with_color(dev->dest, dev->scissor, dev->shape, image, ctm, colorbv); |
||
| 1021 | |||
| 1022 | if (scaled) |
||
| 1023 | fz_drop_pixmap(scaled); |
||
| 1024 | |||
| 1025 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 1026 | fz_knockout_begin(dev); |
||
| 1027 | } |
||
| 1028 | |||
| 1029 | static void |
||
| 1030 | fz_draw_clip_image_mask(void *user, fz_pixmap *image, fz_rect *rect, fz_matrix ctm) |
||
| 1031 | { |
||
| 1032 | fz_draw_device *dev = user; |
||
| 1033 | fz_colorspace *model = dev->dest->colorspace; |
||
| 1034 | fz_bbox bbox; |
||
| 1035 | fz_pixmap *mask, *dest, *shape; |
||
| 1036 | fz_pixmap *scaled = NULL; |
||
| 1037 | int dx, dy; |
||
| 1038 | |||
| 1039 | if (dev->top == STACK_SIZE) |
||
| 1040 | { |
||
| 1041 | fz_warn("assert: too many buffers on stack"); |
||
| 1042 | return; |
||
| 1043 | } |
||
| 1044 | |||
| 1045 | #ifdef DUMP_GROUP_BLENDS |
||
| 1046 | dump_spaces(dev->top, "Clip (image mask) begin\n"); |
||
| 1047 | #endif |
||
| 1048 | |||
| 1049 | if (image->w == 0 || image->h == 0) |
||
| 1050 | { |
||
| 1051 | dev->stack[dev->top].scissor = dev->scissor; |
||
| 1052 | dev->stack[dev->top].mask = NULL; |
||
| 1053 | dev->stack[dev->top].dest = NULL; |
||
| 1054 | dev->stack[dev->top].blendmode = dev->blendmode; |
||
| 1055 | dev->scissor = fz_empty_bbox; |
||
| 1056 | dev->top++; |
||
| 1057 | return; |
||
| 1058 | } |
||
| 1059 | |||
| 1060 | bbox = fz_round_rect(fz_transform_rect(ctm, fz_unit_rect)); |
||
| 1061 | bbox = fz_intersect_bbox(bbox, dev->scissor); |
||
| 1062 | if (rect) |
||
| 1063 | bbox = fz_intersect_bbox(bbox, fz_round_rect(*rect)); |
||
| 1064 | |||
| 1065 | mask = fz_new_pixmap_with_rect(NULL, bbox); |
||
| 1066 | fz_clear_pixmap(mask); |
||
| 1067 | dest = fz_new_pixmap_with_rect(model, bbox); |
||
| 1068 | /* FIXME: See note #1 */ |
||
| 1069 | fz_clear_pixmap(dest); |
||
| 1070 | if (dev->shape) |
||
| 1071 | { |
||
| 1072 | shape = fz_new_pixmap_with_rect(NULL, bbox); |
||
| 1073 | fz_clear_pixmap(shape); |
||
| 1074 | } |
||
| 1075 | else |
||
| 1076 | shape = NULL; |
||
| 1077 | |||
| 1078 | dx = sqrtf(ctm.a * ctm.a + ctm.b * ctm.b); |
||
| 1079 | dy = sqrtf(ctm.c * ctm.c + ctm.d * ctm.d); |
||
| 1080 | if (dx < image->w && dy < image->h) |
||
| 1081 | { |
||
| 1082 | int gridfit = !(dev->flags & FZ_DRAWDEV_FLAGS_TYPE3); |
||
| 1083 | scaled = fz_transform_pixmap(image, &ctm, dev->dest->x, dev->dest->y, dx, dy, gridfit); |
||
| 1084 | if (scaled == NULL) |
||
| 1085 | { |
||
| 1086 | if (dx < 1) |
||
| 1087 | dx = 1; |
||
| 1088 | if (dy < 1) |
||
| 1089 | dy = 1; |
||
| 1090 | scaled = fz_scale_pixmap(image, image->x, image->y, dx, dy); |
||
| 1091 | } |
||
| 1092 | if (scaled != NULL) |
||
| 1093 | image = scaled; |
||
| 1094 | } |
||
| 1095 | |||
| 1096 | fz_paint_image(mask, bbox, dev->shape, image, ctm, 255); |
||
| 1097 | |||
| 1098 | if (scaled) |
||
| 1099 | fz_drop_pixmap(scaled); |
||
| 1100 | |||
| 1101 | dev->stack[dev->top].scissor = dev->scissor; |
||
| 1102 | dev->stack[dev->top].mask = mask; |
||
| 1103 | dev->stack[dev->top].dest = dev->dest; |
||
| 1104 | dev->stack[dev->top].shape = dev->shape; |
||
| 1105 | /* FIXME: See note #1 */ |
||
| 1106 | dev->stack[dev->top].blendmode = dev->blendmode | FZ_BLEND_ISOLATED; |
||
| 1107 | dev->scissor = bbox; |
||
| 1108 | dev->dest = dest; |
||
| 1109 | dev->shape = shape; |
||
| 1110 | dev->top++; |
||
| 1111 | } |
||
| 1112 | |||
| 1113 | static void |
||
| 1114 | fz_draw_pop_clip(void *user) |
||
| 1115 | { |
||
| 1116 | fz_draw_device *dev = user; |
||
| 1117 | fz_pixmap *mask, *dest, *shape; |
||
| 1118 | if (dev->top > 0) |
||
| 1119 | { |
||
| 1120 | dev->top--; |
||
| 1121 | dev->scissor = dev->stack[dev->top].scissor; |
||
| 1122 | mask = dev->stack[dev->top].mask; |
||
| 1123 | dest = dev->stack[dev->top].dest; |
||
| 1124 | shape = dev->stack[dev->top].shape; |
||
| 1125 | dev->blendmode = dev->stack[dev->top].blendmode; |
||
| 1126 | |||
| 1127 | /* We can get here with mask == NULL if the clipping actually |
||
| 1128 | * resolved to a rectangle earlier. In this case, we will |
||
| 1129 | * have a dest, and the shape will be unchanged. |
||
| 1130 | */ |
||
| 1131 | if (mask) |
||
| 1132 | { |
||
| 1133 | assert(dest); |
||
| 1134 | |||
| 1135 | #ifdef DUMP_GROUP_BLENDS |
||
| 1136 | dump_spaces(dev->top, ""); |
||
| 1137 | fz_dump_blend(dev->dest, "Clipping "); |
||
| 1138 | if (dev->shape) |
||
| 1139 | fz_dump_blend(dev->shape, "/"); |
||
| 1140 | fz_dump_blend(dest, " onto "); |
||
| 1141 | if (shape) |
||
| 1142 | fz_dump_blend(shape, "/"); |
||
| 1143 | fz_dump_blend(mask, " with "); |
||
| 1144 | #endif |
||
| 1145 | fz_paint_pixmap_with_mask(dest, dev->dest, mask); |
||
| 1146 | if (shape != NULL) |
||
| 1147 | { |
||
| 1148 | assert(shape != dev->shape); |
||
| 1149 | fz_paint_pixmap_with_mask(shape, dev->shape, mask); |
||
| 1150 | fz_drop_pixmap(dev->shape); |
||
| 1151 | dev->shape = shape; |
||
| 1152 | } |
||
| 1153 | fz_drop_pixmap(mask); |
||
| 1154 | fz_drop_pixmap(dev->dest); |
||
| 1155 | dev->dest = dest; |
||
| 1156 | #ifdef DUMP_GROUP_BLENDS |
||
| 1157 | fz_dump_blend(dev->dest, " to get "); |
||
| 1158 | if (dev->shape) |
||
| 1159 | fz_dump_blend(dev->shape, "/"); |
||
| 1160 | printf("\n"); |
||
| 1161 | #endif |
||
| 1162 | } |
||
| 1163 | else |
||
| 1164 | { |
||
| 1165 | #ifdef DUMP_GROUP_BLENDS |
||
| 1166 | dump_spaces(dev->top, "Clip End\n"); |
||
| 1167 | #endif |
||
| 1168 | assert(dest == NULL); |
||
| 1169 | assert(shape == dev->shape); |
||
| 1170 | } |
||
| 1171 | } |
||
| 1172 | } |
||
| 1173 | |||
| 1174 | static void |
||
| 1175 | fz_draw_begin_mask(void *user, fz_rect rect, int luminosity, fz_colorspace *colorspace, float *colorfv) |
||
| 1176 | { |
||
| 1177 | fz_draw_device *dev = user; |
||
| 1178 | fz_pixmap *dest; |
||
| 1179 | fz_pixmap *shape = dev->shape; |
||
| 1180 | fz_bbox bbox; |
||
| 1181 | |||
| 1182 | if (dev->top == STACK_SIZE) |
||
| 1183 | { |
||
| 1184 | fz_warn("assert: too many buffers on stack"); |
||
| 1185 | return; |
||
| 1186 | } |
||
| 1187 | |||
| 1188 | bbox = fz_round_rect(rect); |
||
| 1189 | bbox = fz_intersect_bbox(bbox, dev->scissor); |
||
| 1190 | dest = fz_new_pixmap_with_rect(fz_device_gray, bbox); |
||
| 1191 | if (dev->shape) |
||
| 1192 | { |
||
| 1193 | /* FIXME: If we ever want to support AIS true, then we |
||
| 1194 | * probably want to create a shape pixmap here, using: |
||
| 1195 | * shape = fz_new_pixmap_with_rect(NULL, bbox); |
||
| 1196 | * then, in the end_mask code, we create the mask from this |
||
| 1197 | * rather than dest. |
||
| 1198 | */ |
||
| 1199 | shape = NULL; |
||
| 1200 | } |
||
| 1201 | |||
| 1202 | if (luminosity) |
||
| 1203 | { |
||
| 1204 | float bc; |
||
| 1205 | if (!colorspace) |
||
| 1206 | colorspace = fz_device_gray; |
||
| 1207 | fz_convert_color(colorspace, colorfv, fz_device_gray, &bc); |
||
| 1208 | fz_clear_pixmap_with_color(dest, bc * 255); |
||
| 1209 | if (shape) |
||
| 1210 | fz_clear_pixmap_with_color(shape, 255); |
||
| 1211 | } |
||
| 1212 | else |
||
| 1213 | { |
||
| 1214 | fz_clear_pixmap(dest); |
||
| 1215 | if (shape) |
||
| 1216 | fz_clear_pixmap(shape); |
||
| 1217 | } |
||
| 1218 | |||
| 1219 | dev->stack[dev->top].scissor = dev->scissor; |
||
| 1220 | dev->stack[dev->top].dest = dev->dest; |
||
| 1221 | dev->stack[dev->top].luminosity = luminosity; |
||
| 1222 | dev->stack[dev->top].shape = dev->shape; |
||
| 1223 | dev->stack[dev->top].blendmode = dev->blendmode; |
||
| 1224 | #ifdef DUMP_GROUP_BLENDS |
||
| 1225 | dump_spaces(dev->top, "Mask begin\n"); |
||
| 1226 | #endif |
||
| 1227 | dev->top++; |
||
| 1228 | |||
| 1229 | dev->scissor = bbox; |
||
| 1230 | dev->dest = dest; |
||
| 1231 | dev->shape = shape; |
||
| 1232 | } |
||
| 1233 | |||
| 1234 | static void |
||
| 1235 | fz_draw_end_mask(void *user) |
||
| 1236 | { |
||
| 1237 | fz_draw_device *dev = user; |
||
| 1238 | fz_pixmap *mask = dev->dest; |
||
| 1239 | fz_pixmap *maskshape = dev->shape; |
||
| 1240 | fz_pixmap *temp, *dest; |
||
| 1241 | fz_bbox bbox; |
||
| 1242 | int luminosity; |
||
| 1243 | |||
| 1244 | if (dev->top == STACK_SIZE) |
||
| 1245 | { |
||
| 1246 | fz_warn("assert: too many buffers on stack"); |
||
| 1247 | return; |
||
| 1248 | } |
||
| 1249 | |||
| 1250 | if (dev->top > 0) |
||
| 1251 | { |
||
| 1252 | /* pop soft mask buffer */ |
||
| 1253 | dev->top--; |
||
| 1254 | luminosity = dev->stack[dev->top].luminosity; |
||
| 1255 | dev->scissor = dev->stack[dev->top].scissor; |
||
| 1256 | dev->dest = dev->stack[dev->top].dest; |
||
| 1257 | dev->shape = dev->stack[dev->top].shape; |
||
| 1258 | |||
| 1259 | /* convert to alpha mask */ |
||
| 1260 | temp = fz_alpha_from_gray(mask, luminosity); |
||
| 1261 | fz_drop_pixmap(mask); |
||
| 1262 | fz_drop_pixmap(maskshape); |
||
| 1263 | |||
| 1264 | /* create new dest scratch buffer */ |
||
| 1265 | bbox = fz_bound_pixmap(temp); |
||
| 1266 | dest = fz_new_pixmap_with_rect(dev->dest->colorspace, bbox); |
||
| 1267 | /* FIXME: See note #1 */ |
||
| 1268 | fz_clear_pixmap(dest); |
||
| 1269 | |||
| 1270 | /* push soft mask as clip mask */ |
||
| 1271 | dev->stack[dev->top].scissor = dev->scissor; |
||
| 1272 | dev->stack[dev->top].mask = temp; |
||
| 1273 | dev->stack[dev->top].dest = dev->dest; |
||
| 1274 | /* FIXME: See note #1 */ |
||
| 1275 | dev->stack[dev->top].blendmode = dev->blendmode | FZ_BLEND_ISOLATED; |
||
| 1276 | /* If we have a shape, then it'll need to be masked with the |
||
| 1277 | * clip mask when we pop. So create a new shape now. */ |
||
| 1278 | if (dev->shape) |
||
| 1279 | { |
||
| 1280 | dev->stack[dev->top].shape = dev->shape; |
||
| 1281 | dev->shape = fz_new_pixmap_with_rect(NULL, bbox); |
||
| 1282 | fz_clear_pixmap(dev->shape); |
||
| 1283 | } |
||
| 1284 | dev->scissor = bbox; |
||
| 1285 | dev->dest = dest; |
||
| 1286 | #ifdef DUMP_GROUP_BLENDS |
||
| 1287 | dump_spaces(dev->top, "Mask -> Clip\n"); |
||
| 1288 | #endif |
||
| 1289 | dev->top++; |
||
| 1290 | } |
||
| 1291 | } |
||
| 1292 | |||
| 1293 | static void |
||
| 1294 | fz_draw_begin_group(void *user, fz_rect rect, int isolated, int knockout, int blendmode, float alpha) |
||
| 1295 | { |
||
| 1296 | fz_draw_device *dev = user; |
||
| 1297 | fz_colorspace *model = dev->dest->colorspace; |
||
| 1298 | fz_bbox bbox; |
||
| 1299 | fz_pixmap *dest, *shape; |
||
| 1300 | |||
| 1301 | if (dev->top == STACK_SIZE) |
||
| 1302 | { |
||
| 1303 | fz_warn("assert: too many buffers on stack"); |
||
| 1304 | return; |
||
| 1305 | } |
||
| 1306 | |||
| 1307 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 1308 | fz_knockout_begin(dev); |
||
| 1309 | |||
| 1310 | bbox = fz_round_rect(rect); |
||
| 1311 | bbox = fz_intersect_bbox(bbox, dev->scissor); |
||
| 1312 | dest = fz_new_pixmap_with_rect(model, bbox); |
||
| 1313 | |||
| 1314 | #ifndef ATTEMPT_KNOCKOUT_AND_ISOLATED |
||
| 1315 | knockout = 0; |
||
| 1316 | isolated = 1; |
||
| 1317 | #endif |
||
| 1318 | |||
| 1319 | if (isolated) |
||
| 1320 | { |
||
| 1321 | fz_clear_pixmap(dest); |
||
| 1322 | } |
||
| 1323 | else |
||
| 1324 | { |
||
| 1325 | fz_copy_pixmap_rect(dest, dev->dest, bbox); |
||
| 1326 | } |
||
| 1327 | |||
| 1328 | if (blendmode == 0 && alpha == 1.0 && isolated) |
||
| 1329 | { |
||
| 1330 | /* We can render direct to any existing shape plane. If there |
||
| 1331 | * isn't one, we don't need to make one. */ |
||
| 1332 | shape = dev->shape; |
||
| 1333 | } |
||
| 1334 | else |
||
| 1335 | { |
||
| 1336 | shape = fz_new_pixmap_with_rect(NULL, bbox); |
||
| 1337 | fz_clear_pixmap(shape); |
||
| 1338 | } |
||
| 1339 | |||
| 1340 | dev->stack[dev->top].alpha = alpha; |
||
| 1341 | dev->stack[dev->top].blendmode = dev->blendmode; |
||
| 1342 | dev->stack[dev->top].scissor = dev->scissor; |
||
| 1343 | dev->stack[dev->top].dest = dev->dest; |
||
| 1344 | dev->stack[dev->top].shape = dev->shape; |
||
| 1345 | #ifdef DUMP_GROUP_BLENDS |
||
| 1346 | dump_spaces(dev->top, "Group Begin\n"); |
||
| 1347 | #endif |
||
| 1348 | dev->top++; |
||
| 1349 | |||
| 1350 | dev->scissor = bbox; |
||
| 1351 | dev->dest = dest; |
||
| 1352 | dev->shape = shape; |
||
| 1353 | dev->blendmode = blendmode | (isolated ? FZ_BLEND_ISOLATED : 0) | (knockout ? FZ_BLEND_KNOCKOUT : 0); |
||
| 1354 | } |
||
| 1355 | |||
| 1356 | static void |
||
| 1357 | fz_draw_end_group(void *user) |
||
| 1358 | { |
||
| 1359 | fz_draw_device *dev = user; |
||
| 1360 | fz_pixmap *group = dev->dest; |
||
| 1361 | fz_pixmap *shape = dev->shape; |
||
| 1362 | int blendmode; |
||
| 1363 | int isolated; |
||
| 1364 | float alpha; |
||
| 1365 | |||
| 1366 | if (dev->top > 0) |
||
| 1367 | { |
||
| 1368 | dev->top--; |
||
| 1369 | alpha = dev->stack[dev->top].alpha; |
||
| 1370 | blendmode = dev->blendmode & FZ_BLEND_MODEMASK; |
||
| 1371 | isolated = dev->blendmode & FZ_BLEND_ISOLATED; |
||
| 1372 | dev->blendmode = dev->stack[dev->top].blendmode; |
||
| 1373 | dev->shape = dev->stack[dev->top].shape; |
||
| 1374 | dev->dest = dev->stack[dev->top].dest; |
||
| 1375 | dev->scissor = dev->stack[dev->top].scissor; |
||
| 1376 | |||
| 1377 | #ifdef DUMP_GROUP_BLENDS |
||
| 1378 | dump_spaces(dev->top, ""); |
||
| 1379 | fz_dump_blend(group, "Blending "); |
||
| 1380 | if (shape) |
||
| 1381 | fz_dump_blend(shape, "/"); |
||
| 1382 | fz_dump_blend(dev->dest, " onto "); |
||
| 1383 | if (dev->shape) |
||
| 1384 | fz_dump_blend(dev->shape, "/"); |
||
| 1385 | if (alpha != 1.0f) |
||
| 1386 | printf(" (alpha %g)", alpha); |
||
| 1387 | if (blendmode != 0) |
||
| 1388 | printf(" (blend %d)", blendmode); |
||
| 1389 | if (isolated != 0) |
||
| 1390 | printf(" (isolated)"); |
||
| 1391 | if (blendmode & FZ_BLEND_KNOCKOUT) |
||
| 1392 | printf(" (knockout)"); |
||
| 1393 | #endif |
||
| 1394 | if ((blendmode == 0) && (shape == NULL)) |
||
| 1395 | fz_paint_pixmap(dev->dest, group, alpha * 255); |
||
| 1396 | else |
||
| 1397 | fz_blend_pixmap(dev->dest, group, alpha * 255, blendmode, isolated, shape); |
||
| 1398 | |||
| 1399 | fz_drop_pixmap(group); |
||
| 1400 | if (shape != dev->shape) |
||
| 1401 | { |
||
| 1402 | if (dev->shape) |
||
| 1403 | { |
||
| 1404 | fz_paint_pixmap(dev->shape, shape, alpha * 255); |
||
| 1405 | } |
||
| 1406 | fz_drop_pixmap(shape); |
||
| 1407 | } |
||
| 1408 | #ifdef DUMP_GROUP_BLENDS |
||
| 1409 | fz_dump_blend(dev->dest, " to get "); |
||
| 1410 | if (dev->shape) |
||
| 1411 | fz_dump_blend(dev->shape, "/"); |
||
| 1412 | printf("\n"); |
||
| 1413 | #endif |
||
| 1414 | } |
||
| 1415 | |||
| 1416 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 1417 | fz_knockout_end(dev); |
||
| 1418 | } |
||
| 1419 | |||
| 1420 | static void |
||
| 1421 | fz_draw_begin_tile(void *user, fz_rect area, fz_rect view, float xstep, float ystep, fz_matrix ctm) |
||
| 1422 | { |
||
| 1423 | fz_draw_device *dev = user; |
||
| 1424 | fz_colorspace *model = dev->dest->colorspace; |
||
| 1425 | fz_pixmap *dest; |
||
| 1426 | fz_bbox bbox; |
||
| 1427 | |||
| 1428 | /* area, view, xstep, ystep are in pattern space */ |
||
| 1429 | /* ctm maps from pattern space to device space */ |
||
| 1430 | |||
| 1431 | if (dev->top == STACK_SIZE) |
||
| 1432 | { |
||
| 1433 | fz_warn("assert: too many buffers on stack"); |
||
| 1434 | return; |
||
| 1435 | } |
||
| 1436 | |||
| 1437 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 1438 | fz_knockout_begin(dev); |
||
| 1439 | |||
| 1440 | bbox = fz_round_rect(fz_transform_rect(ctm, view)); |
||
| 1441 | dest = fz_new_pixmap_with_rect(model, bbox); |
||
| 1442 | /* FIXME: See note #1 */ |
||
| 1443 | fz_clear_pixmap(dest); |
||
| 1444 | |||
| 1445 | dev->stack[dev->top].scissor = dev->scissor; |
||
| 1446 | dev->stack[dev->top].dest = dev->dest; |
||
| 1447 | dev->stack[dev->top].shape = dev->shape; |
||
| 1448 | /* FIXME: See note #1 */ |
||
| 1449 | dev->stack[dev->top].blendmode = dev->blendmode | FZ_BLEND_ISOLATED; |
||
| 1450 | dev->stack[dev->top].xstep = xstep; |
||
| 1451 | dev->stack[dev->top].ystep = ystep; |
||
| 1452 | dev->stack[dev->top].area = area; |
||
| 1453 | dev->stack[dev->top].ctm = ctm; |
||
| 1454 | #ifdef DUMP_GROUP_BLENDS |
||
| 1455 | dump_spaces(dev->top, "Tile begin\n"); |
||
| 1456 | #endif |
||
| 1457 | dev->top++; |
||
| 1458 | |||
| 1459 | dev->scissor = bbox; |
||
| 1460 | dev->dest = dest; |
||
| 1461 | } |
||
| 1462 | |||
| 1463 | static void |
||
| 1464 | fz_draw_end_tile(void *user) |
||
| 1465 | { |
||
| 1466 | fz_draw_device *dev = user; |
||
| 1467 | fz_pixmap *tile = dev->dest; |
||
| 1468 | float xstep, ystep; |
||
| 1469 | fz_matrix ctm, ttm; |
||
| 1470 | fz_rect area; |
||
| 1471 | int x0, y0, x1, y1, x, y; |
||
| 1472 | |||
| 1473 | if (dev->top > 0) |
||
| 1474 | { |
||
| 1475 | dev->top--; |
||
| 1476 | #ifdef DUMP_GROUP_BLENDS |
||
| 1477 | dump_spaces(dev->top, "Tile end\n"); |
||
| 1478 | #endif |
||
| 1479 | xstep = dev->stack[dev->top].xstep; |
||
| 1480 | ystep = dev->stack[dev->top].ystep; |
||
| 1481 | area = dev->stack[dev->top].area; |
||
| 1482 | ctm = dev->stack[dev->top].ctm; |
||
| 1483 | dev->scissor = dev->stack[dev->top].scissor; |
||
| 1484 | dev->dest = dev->stack[dev->top].dest; |
||
| 1485 | dev->blendmode = dev->stack[dev->top].blendmode; |
||
| 1486 | |||
| 1487 | |||
| 1488 | x0 = floorf(area.x0 / xstep); |
||
| 1489 | y0 = floorf(area.y0 / ystep); |
||
| 1490 | x1 = ceilf(area.x1 / xstep); |
||
| 1491 | y1 = ceilf(area.y1 / ystep); |
||
| 1492 | |||
| 1493 | ctm.e = tile->x; |
||
| 1494 | ctm.f = tile->y; |
||
| 1495 | |||
| 1496 | for (y = y0; y < y1; y++) |
||
| 1497 | { |
||
| 1498 | for (x = x0; x < x1; x++) |
||
| 1499 | { |
||
| 1500 | ttm = fz_concat(fz_translate(x * xstep, y * ystep), ctm); |
||
| 1501 | tile->x = ttm.e; |
||
| 1502 | tile->y = ttm.f; |
||
| 1503 | fz_paint_pixmap_with_rect(dev->dest, tile, 255, dev->scissor); |
||
| 1504 | } |
||
| 1505 | } |
||
| 1506 | |||
| 1507 | fz_drop_pixmap(tile); |
||
| 1508 | } |
||
| 1509 | |||
| 1510 | if (dev->blendmode & FZ_BLEND_KNOCKOUT) |
||
| 1511 | fz_knockout_begin(dev); |
||
| 1512 | } |
||
| 1513 | |||
| 1514 | static void |
||
| 1515 | fz_draw_free_user(void *user) |
||
| 1516 | { |
||
| 1517 | fz_draw_device *dev = user; |
||
| 1518 | /* TODO: pop and free the stacks */ |
||
| 1519 | if (dev->top > 0) |
||
| 1520 | fz_warn("items left on stack in draw device: %d", dev->top); |
||
| 1521 | fz_free_gel(dev->gel); |
||
| 1522 | fz_free(dev); |
||
| 1523 | } |
||
| 1524 | |||
| 1525 | fz_device * |
||
| 1526 | fz_new_draw_device(fz_glyph_cache *cache, fz_pixmap *dest) |
||
| 1527 | { |
||
| 1528 | fz_device *dev; |
||
| 1529 | fz_draw_device *ddev = fz_malloc(sizeof(fz_draw_device)); |
||
| 1530 | ddev->cache = cache; |
||
| 1531 | ddev->gel = fz_new_gel(); |
||
| 1532 | ddev->dest = dest; |
||
| 1533 | ddev->shape = NULL; |
||
| 1534 | ddev->top = 0; |
||
| 1535 | ddev->blendmode = 0; |
||
| 1536 | ddev->flags = 0; |
||
| 1537 | |||
| 1538 | ddev->scissor.x0 = dest->x; |
||
| 1539 | ddev->scissor.y0 = dest->y; |
||
| 1540 | ddev->scissor.x1 = dest->x + dest->w; |
||
| 1541 | ddev->scissor.y1 = dest->y + dest->h; |
||
| 1542 | |||
| 1543 | dev = fz_new_device(ddev); |
||
| 1544 | dev->free_user = fz_draw_free_user; |
||
| 1545 | |||
| 1546 | dev->fill_path = fz_draw_fill_path; |
||
| 1547 | dev->stroke_path = fz_draw_stroke_path; |
||
| 1548 | dev->clip_path = fz_draw_clip_path; |
||
| 1549 | dev->clip_stroke_path = fz_draw_clip_stroke_path; |
||
| 1550 | |||
| 1551 | dev->fill_text = fz_draw_fill_text; |
||
| 1552 | dev->stroke_text = fz_draw_stroke_text; |
||
| 1553 | dev->clip_text = fz_draw_clip_text; |
||
| 1554 | dev->clip_stroke_text = fz_draw_clip_stroke_text; |
||
| 1555 | dev->ignore_text = fz_draw_ignore_text; |
||
| 1556 | |||
| 1557 | dev->fill_image_mask = fz_draw_fill_image_mask; |
||
| 1558 | dev->clip_image_mask = fz_draw_clip_image_mask; |
||
| 1559 | dev->fill_image = fz_draw_fill_image; |
||
| 1560 | dev->fill_shade = fz_draw_fill_shade; |
||
| 1561 | |||
| 1562 | dev->pop_clip = fz_draw_pop_clip; |
||
| 1563 | |||
| 1564 | dev->begin_mask = fz_draw_begin_mask; |
||
| 1565 | dev->end_mask = fz_draw_end_mask; |
||
| 1566 | dev->begin_group = fz_draw_begin_group; |
||
| 1567 | dev->end_group = fz_draw_end_group; |
||
| 1568 | |||
| 1569 | dev->begin_tile = fz_draw_begin_tile; |
||
| 1570 | dev->end_tile = fz_draw_end_tile; |
||
| 1571 | |||
| 1572 | return dev; |
||
| 1573 | } |
||
| 1574 | |||
| 1575 | fz_device * |
||
| 1576 | fz_new_draw_device_type3(fz_glyph_cache *cache, fz_pixmap *dest) |
||
| 1577 | { |
||
| 1578 | fz_device *dev = fz_new_draw_device(cache, dest); |
||
| 1579 | fz_draw_device *ddev = dev->user; |
||
| 1580 | ddev->flags |= FZ_DRAWDEV_FLAGS_TYPE3; |
||
| 1581 | return dev; |
||
| 1582 | } |