ReactOS 0.4.15-dev-8131-g4988de4
ftrend1.c
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1/***************************************************************************/
2/* */
3/* ftrend1.c */
4/* */
5/* The FreeType glyph rasterizer interface (body). */
6/* */
7/* Copyright 1996-2018 by */
8/* David Turner, Robert Wilhelm, and Werner Lemberg. */
9/* */
10/* This file is part of the FreeType project, and may only be used, */
11/* modified, and distributed under the terms of the FreeType project */
12/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
13/* this file you indicate that you have read the license and */
14/* understand and accept it fully. */
15/* */
16/***************************************************************************/
17
18
19#include <ft2build.h>
20#include FT_INTERNAL_DEBUG_H
21#include FT_INTERNAL_OBJECTS_H
22#include FT_OUTLINE_H
23#include "ftrend1.h"
24#include "ftraster.h"
25#include "rastpic.h"
26
27#include "rasterrs.h"
28
29
30 /* initialize renderer -- init its raster */
31 static FT_Error
33 {
34 render->clazz->raster_class->raster_reset( render->raster, NULL, 0 );
35
36 return FT_Err_Ok;
37 }
38
39
40 /* set render-specific mode */
41 static FT_Error
43 FT_ULong mode_tag,
45 {
46 /* we simply pass it to the raster */
47 return render->clazz->raster_class->raster_set_mode( render->raster,
48 mode_tag,
49 data );
50 }
51
52
53 /* transform a given glyph image */
54 static FT_Error
57 const FT_Matrix* matrix,
58 const FT_Vector* delta )
59 {
61
62
63 if ( slot->format != render->glyph_format )
64 {
65 error = FT_THROW( Invalid_Argument );
66 goto Exit;
67 }
68
69 if ( matrix )
70 FT_Outline_Transform( &slot->outline, matrix );
71
72 if ( delta )
73 FT_Outline_Translate( &slot->outline, delta->x, delta->y );
74
75 Exit:
76 return error;
77 }
78
79
80 /* return the glyph's control box */
81 static void
84 FT_BBox* cbox )
85 {
86 FT_ZERO( cbox );
87
88 if ( slot->format == render->glyph_format )
89 FT_Outline_Get_CBox( &slot->outline, cbox );
90 }
91
92
93 /* convert a slot's glyph image into a bitmap */
94 static FT_Error
98 const FT_Vector* origin )
99 {
101 FT_Outline* outline = &slot->outline;
102 FT_Bitmap* bitmap = &slot->bitmap;
103 FT_Memory memory = render->root.memory;
104 FT_Pos x_shift = 0;
105 FT_Pos y_shift = 0;
106
108
109
110 /* check glyph image format */
111 if ( slot->format != render->glyph_format )
112 {
113 error = FT_THROW( Invalid_Argument );
114 goto Exit;
115 }
116
117 /* check rendering mode */
118 if ( mode != FT_RENDER_MODE_MONO )
119 {
120 /* raster1 is only capable of producing monochrome bitmaps */
121 return FT_THROW( Cannot_Render_Glyph );
122 }
123
124 /* release old bitmap buffer */
125 if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
126 {
127 FT_FREE( bitmap->buffer );
128 slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
129 }
130
132
133 /* allocate new one */
134 if ( FT_ALLOC_MULT( bitmap->buffer, bitmap->rows, bitmap->pitch ) )
135 goto Exit;
136
137 slot->internal->flags |= FT_GLYPH_OWN_BITMAP;
138
139 x_shift = -slot->bitmap_left * 64;
140 y_shift = ( (FT_Int)bitmap->rows - slot->bitmap_top ) * 64;
141
142 if ( origin )
143 {
144 x_shift += origin->x;
145 y_shift += origin->y;
146 }
147
148 /* translate outline to render it into the bitmap */
149 if ( x_shift || y_shift )
150 FT_Outline_Translate( outline, x_shift, y_shift );
151
152 /* set up parameters */
153 params.target = bitmap;
154 params.source = outline;
156
157 /* render outline into the bitmap */
158 error = render->raster_render( render->raster, &params );
159
160 Exit:
161 if ( !error )
162 /* everything is fine; the glyph is now officially a bitmap */
163 slot->format = FT_GLYPH_FORMAT_BITMAP;
164 else if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
165 {
166 FT_FREE( bitmap->buffer );
167 slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
168 }
169
170 if ( x_shift || y_shift )
171 FT_Outline_Translate( outline, -x_shift, -y_shift );
172
173 return error;
174 }
175
176
178 ft_raster1_renderer_class,
179
181 sizeof ( FT_RendererRec ),
182
183 "raster1",
184 0x10000L,
185 0x20000L,
186
187 NULL, /* module specific interface */
188
189 (FT_Module_Constructor)ft_raster1_init, /* module_init */
190 (FT_Module_Destructor) NULL, /* module_done */
191 (FT_Module_Requester) NULL, /* get_interface */
192
194
195 (FT_Renderer_RenderFunc) ft_raster1_render, /* render_glyph */
196 (FT_Renderer_TransformFunc)ft_raster1_transform, /* transform_glyph */
197 (FT_Renderer_GetCBoxFunc) ft_raster1_get_cbox, /* get_glyph_cbox */
199
200 (FT_Raster_Funcs*)&FT_STANDARD_RASTER_GET /* raster_class */
201 )
202
203
204/* END */
#define NULL
Definition: types.h:112
enum FT_Render_Mode_ FT_Render_Mode
@ FT_RENDER_MODE_MONO
Definition: freetype.h:3236
return FT_Err_Ok
Definition: ftbbox.c:511
#define FT_THROW(e)
Definition: ftdebug.h:213
#define FT_RASTER_FLAG_DEFAULT
Definition: ftimage.h:940
FT_BEGIN_HEADER typedef signed long FT_Pos
Definition: ftimage.h:58
#define FT_ALLOC_MULT(ptr, count, item_size)
Definition: ftmemory.h:309
#define FT_FREE(ptr)
Definition: ftmemory.h:329
#define FT_ZERO(p)
Definition: ftmemory.h:237
void(* FT_Module_Destructor)(FT_Module module)
Definition: ftmodapi.h:167
#define FT_MODULE_RENDERER
Definition: ftmodapi.h:111
FT_Error(* FT_Module_Constructor)(FT_Module module)
Definition: ftmodapi.h:152
FT_Module_Interface(* FT_Module_Requester)(FT_Module module, const char *name)
Definition: ftmodapi.h:184
ft_glyphslot_preset_bitmap(FT_GlyphSlot slot, FT_Render_Mode mode, const FT_Vector *origin)
Definition: ftobjs.c:334
#define FT_GLYPH_OWN_BITMAP
Definition: ftobjs.h:463
#define FT_DEFINE_RENDERER( class_, flags_, size_, name_, version_, requires_, interface_, init_, done_, get_interface_, glyph_format_, render_glyph_, transform_glyph_, get_glyph_cbox_, set_mode_, raster_class_)
Definition: ftobjs.h:1259
FT_Outline_Translate(const FT_Outline *outline, FT_Pos xOffset, FT_Pos yOffset)
Definition: ftoutln.c:528
FT_Outline_Transform(const FT_Outline *outline, const FT_Matrix *matrix)
Definition: ftoutln.c:711
FT_Outline_Get_CBox(const FT_Outline *outline, FT_BBox *acbox)
Definition: ftoutln.c:478
static FT_Error ft_raster1_transform(FT_Renderer render, FT_GlyphSlot slot, const FT_Matrix *matrix, const FT_Vector *delta)
Definition: ftrend1.c:55
static FT_Error ft_raster1_set_mode(FT_Renderer render, FT_ULong mode_tag, FT_Pointer data)
Definition: ftrend1.c:42
static void ft_raster1_get_cbox(FT_Renderer render, FT_GlyphSlot slot, FT_BBox *cbox)
Definition: ftrend1.c:82
static FT_Error ft_raster1_render(FT_Renderer render, FT_GlyphSlot slot, FT_Render_Mode mode, const FT_Vector *origin)
Definition: ftrend1.c:95
static FT_Error ft_raster1_init(FT_Renderer render)
Definition: ftrend1.c:32
FT_Error(* FT_Renderer_SetModeFunc)(FT_Renderer renderer, FT_ULong mode_tag, FT_Pointer mode_ptr)
Definition: ftrender.h:108
FT_Error(* FT_Renderer_TransformFunc)(FT_Renderer renderer, FT_GlyphSlot slot, const FT_Matrix *matrix, const FT_Vector *delta)
Definition: ftrender.h:95
void(* FT_Renderer_GetCBoxFunc)(FT_Renderer renderer, FT_GlyphSlot slot, FT_BBox *cbox)
Definition: ftrender.h:102
FT_Error(* FT_Renderer_RenderFunc)(FT_Renderer renderer, FT_GlyphSlot slot, FT_Render_Mode mode, const FT_Vector *origin)
Definition: ftrender.h:89
smooth FT_Module_Constructor FT_Module_Destructor FT_Module_Requester FT_GLYPH_FORMAT_OUTLINE
Definition: ftsmooth.c:426
typedefFT_BEGIN_HEADER struct FT_MemoryRec_ * FT_Memory
Definition: ftsystem.h:66
unsigned long FT_ULong
Definition: fttypes.h:253
int FT_Error
Definition: fttypes.h:300
signed int FT_Int
Definition: fttypes.h:220
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: gl.h:1950
GLuint GLenum matrix
Definition: glext.h:9407
GLenum mode
Definition: glext.h:6217
GLenum const GLfloat * params
Definition: glext.h:5645
voidpf uLong int origin
Definition: ioapi.h:144
#define error(str)
Definition: mkdosfs.c:1605
static char memory[1024 *256]
Definition: process.c:116
#define FT_STANDARD_RASTER_GET
Definition: rastpic.h:30
static void Exit(void)
Definition: sock.c:1330
static void render(void)
Definition: ssstars.c:272
FT_Pos x
Definition: ftimage.h:76
FT_Pos y
Definition: ftimage.h:77
Definition: vfat.h:185
Definition: uimain.c:89
Definition: mesh.c:5330