mirror of https://github.com/FreeRDP/FreeRDP
751 lines
13 KiB
C
751 lines
13 KiB
C
/**
|
|
* RdTk: Remote Desktop Toolkit
|
|
*
|
|
* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include <rdtk/config.h>
|
|
|
|
#include <errno.h>
|
|
|
|
#include <winpr/config.h>
|
|
#include <winpr/wtypes.h>
|
|
#include <winpr/crt.h>
|
|
#include <winpr/assert.h>
|
|
#include <winpr/path.h>
|
|
#include <winpr/file.h>
|
|
#include <winpr/print.h>
|
|
|
|
#include "rdtk_engine.h"
|
|
#include "rdtk_resources.h"
|
|
#include "rdtk_surface.h"
|
|
|
|
#include "rdtk_font.h"
|
|
|
|
#if defined(WINPR_WITH_PNG)
|
|
#define FILE_EXT "png"
|
|
#else
|
|
#define FILE_EXT "bmp"
|
|
#endif
|
|
|
|
static int rdtk_font_draw_glyph(rdtkSurface* surface, int nXDst, int nYDst, rdtkFont* font,
|
|
rdtkGlyph* glyph)
|
|
{
|
|
WINPR_ASSERT(surface);
|
|
WINPR_ASSERT(font);
|
|
WINPR_ASSERT(glyph);
|
|
|
|
nXDst += glyph->offsetX;
|
|
nYDst += glyph->offsetY;
|
|
const int nXSrc = glyph->rectX;
|
|
const int nYSrc = glyph->rectY;
|
|
const int nWidth = glyph->rectWidth;
|
|
const int nHeight = glyph->rectHeight;
|
|
const uint32_t nSrcStep = font->image->scanline;
|
|
const uint8_t* pSrcData = font->image->data;
|
|
uint8_t* pDstData = surface->data;
|
|
const uint32_t nDstStep = surface->scanline;
|
|
|
|
for (int y = 0; y < nHeight; y++)
|
|
{
|
|
const uint8_t* pSrcPixel = &pSrcData[((nYSrc + y) * nSrcStep) + (nXSrc * 4)];
|
|
uint8_t* pDstPixel = &pDstData[((nYDst + y) * nDstStep) + (nXDst * 4)];
|
|
|
|
for (int x = 0; x < nWidth; x++)
|
|
{
|
|
uint8_t B = pSrcPixel[0];
|
|
uint8_t G = pSrcPixel[1];
|
|
uint8_t R = pSrcPixel[2];
|
|
uint8_t A = pSrcPixel[3];
|
|
pSrcPixel += 4;
|
|
|
|
if (1)
|
|
{
|
|
/* tint black */
|
|
R = 255 - R;
|
|
G = 255 - G;
|
|
B = 255 - B;
|
|
}
|
|
|
|
if (A == 255)
|
|
{
|
|
pDstPixel[0] = B;
|
|
pDstPixel[1] = G;
|
|
pDstPixel[2] = R;
|
|
}
|
|
else
|
|
{
|
|
R = (R * A) / 255;
|
|
G = (G * A) / 255;
|
|
B = (B * A) / 255;
|
|
pDstPixel[0] = B + (pDstPixel[0] * (255 - A) + (255 / 2)) / 255;
|
|
pDstPixel[1] = G + (pDstPixel[1] * (255 - A) + (255 / 2)) / 255;
|
|
pDstPixel[2] = R + (pDstPixel[2] * (255 - A) + (255 / 2)) / 255;
|
|
}
|
|
|
|
pDstPixel[3] = 0xFF;
|
|
pDstPixel += 4;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int rdtk_font_draw_text(rdtkSurface* surface, uint16_t nXDst, uint16_t nYDst, rdtkFont* font,
|
|
const char* text)
|
|
{
|
|
WINPR_ASSERT(surface);
|
|
WINPR_ASSERT(font);
|
|
WINPR_ASSERT(text);
|
|
|
|
const size_t length = strlen(text);
|
|
for (size_t index = 0; index < length; index++)
|
|
{
|
|
rdtkGlyph* glyph = &font->glyphs[text[index] - 32];
|
|
rdtk_font_draw_glyph(surface, nXDst, nYDst, font, glyph);
|
|
nXDst += (glyph->width + 1);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int rdtk_font_text_draw_size(rdtkFont* font, uint16_t* width, uint16_t* height, const char* text)
|
|
{
|
|
WINPR_ASSERT(font);
|
|
WINPR_ASSERT(width);
|
|
WINPR_ASSERT(height);
|
|
WINPR_ASSERT(text);
|
|
|
|
*width = 0;
|
|
*height = 0;
|
|
const size_t length = strlen(text);
|
|
for (size_t index = 0; index < length; index++)
|
|
{
|
|
const size_t glyphIndex = text[index] - 32;
|
|
|
|
if (glyphIndex < font->glyphCount)
|
|
{
|
|
rdtkGlyph* glyph = &font->glyphs[glyphIndex];
|
|
*width += (glyph->width + 1);
|
|
}
|
|
}
|
|
|
|
*height = font->height + 2;
|
|
return 1;
|
|
}
|
|
|
|
static char* rdtk_font_load_descriptor_file(const char* filename, size_t* pSize)
|
|
{
|
|
WINPR_ASSERT(filename);
|
|
WINPR_ASSERT(pSize);
|
|
|
|
union
|
|
{
|
|
size_t s;
|
|
INT64 i64;
|
|
} fileSize;
|
|
FILE* fp = winpr_fopen(filename, "r");
|
|
|
|
if (!fp)
|
|
return NULL;
|
|
|
|
_fseeki64(fp, 0, SEEK_END);
|
|
fileSize.i64 = _ftelli64(fp);
|
|
_fseeki64(fp, 0, SEEK_SET);
|
|
|
|
if (fileSize.i64 < 1)
|
|
{
|
|
fclose(fp);
|
|
return NULL;
|
|
}
|
|
|
|
uint8_t* buffer = (uint8_t*)malloc(fileSize.s + 2);
|
|
|
|
if (!buffer)
|
|
{
|
|
fclose(fp);
|
|
return NULL;
|
|
}
|
|
|
|
size_t readSize = fread(buffer, fileSize.s, 1, fp);
|
|
if (readSize == 0)
|
|
{
|
|
if (!ferror(fp))
|
|
readSize = fileSize.s;
|
|
}
|
|
|
|
fclose(fp);
|
|
|
|
if (readSize < 1)
|
|
{
|
|
free(buffer);
|
|
return NULL;
|
|
}
|
|
|
|
buffer[fileSize.s] = '\0';
|
|
buffer[fileSize.s + 1] = '\0';
|
|
*pSize = fileSize.s;
|
|
return (char*)buffer;
|
|
}
|
|
|
|
static int rdtk_font_convert_descriptor_code_to_utf8(const char* str, uint8_t* utf8)
|
|
{
|
|
WINPR_ASSERT(str);
|
|
WINPR_ASSERT(utf8);
|
|
|
|
const size_t len = strlen(str);
|
|
*((uint32_t*)utf8) = 0;
|
|
|
|
if (len < 1)
|
|
return 1;
|
|
|
|
if (len == 1)
|
|
{
|
|
if ((str[0] > 31) && (str[0] < 127))
|
|
{
|
|
utf8[0] = str[0];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (str[0] == '&')
|
|
{
|
|
const char* acc = &str[1];
|
|
|
|
if (strcmp(acc, "quot;") == 0)
|
|
utf8[0] = '"';
|
|
else if (strcmp(acc, "amp;") == 0)
|
|
utf8[0] = '&';
|
|
else if (strcmp(acc, "lt;") == 0)
|
|
utf8[0] = '<';
|
|
else if (strcmp(acc, "gt;") == 0)
|
|
utf8[0] = '>';
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int rdtk_font_parse_descriptor_buffer(rdtkFont* font, uint8_t* buffer, size_t size)
|
|
{
|
|
WINPR_ASSERT(font);
|
|
|
|
char* p = strstr((char*)buffer, "<?xml version=\"1.0\" encoding=\"utf-8\"?>");
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
p += sizeof("<?xml version=\"1.0\" encoding=\"utf-8\"?>") - 1;
|
|
p = strstr(p, "<Font ");
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
p += sizeof("<Font ") - 1;
|
|
/* find closing font tag */
|
|
char* end = strstr(p, "</Font>");
|
|
|
|
if (!end)
|
|
return -1;
|
|
|
|
/* parse font size */
|
|
p = strstr(p, "size=\"");
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
p += sizeof("size=\"") - 1;
|
|
char* q = strchr(p, '"');
|
|
|
|
if (!q)
|
|
return -1;
|
|
|
|
*q = '\0';
|
|
errno = 0;
|
|
{
|
|
long val = strtol(p, NULL, 0);
|
|
|
|
if ((errno != 0) || (val < INT32_MIN) || (val > INT32_MAX))
|
|
return -1;
|
|
|
|
font->size = val;
|
|
}
|
|
*q = '"';
|
|
|
|
if (font->size <= 0)
|
|
return -1;
|
|
|
|
p = q + 1;
|
|
/* parse font family */
|
|
p = strstr(p, "family=\"");
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
p += sizeof("family=\"") - 1;
|
|
q = strchr(p, '"');
|
|
|
|
if (!q)
|
|
return -1;
|
|
|
|
*q = '\0';
|
|
font->family = _strdup(p);
|
|
*q = '"';
|
|
|
|
if (!font->family)
|
|
return -1;
|
|
|
|
p = q + 1;
|
|
/* parse font height */
|
|
p = strstr(p, "height=\"");
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
p += sizeof("height=\"") - 1;
|
|
q = strchr(p, '"');
|
|
|
|
if (!q)
|
|
return -1;
|
|
|
|
*q = '\0';
|
|
errno = 0;
|
|
{
|
|
long val = strtol(p, NULL, 0);
|
|
|
|
if ((errno != 0) || (val < INT32_MIN) || (val > INT32_MAX))
|
|
return -1;
|
|
|
|
font->height = val;
|
|
}
|
|
*q = '"';
|
|
|
|
if (font->height <= 0)
|
|
return -1;
|
|
|
|
p = q + 1;
|
|
/* parse font style */
|
|
p = strstr(p, "style=\"");
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
p += sizeof("style=\"") - 1;
|
|
q = strchr(p, '"');
|
|
|
|
if (!q)
|
|
return -1;
|
|
|
|
*q = '\0';
|
|
font->style = _strdup(p);
|
|
*q = '"';
|
|
|
|
if (!font->style)
|
|
return -1;
|
|
|
|
p = q + 1;
|
|
// printf("size: %d family: %s height: %d style: %s\n",
|
|
// font->size, font->family, font->height, font->style);
|
|
char* beg = p;
|
|
size_t count = 0;
|
|
|
|
while (p < end)
|
|
{
|
|
p = strstr(p, "<Char ");
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
p += sizeof("<Char ") - 1;
|
|
char* r = strstr(p, "/>");
|
|
|
|
if (!r)
|
|
return -1;
|
|
|
|
*r = '\0';
|
|
p = r + sizeof("/>");
|
|
*r = '/';
|
|
count++;
|
|
}
|
|
|
|
if (count > UINT16_MAX)
|
|
return -1;
|
|
|
|
font->glyphCount = (uint16_t)count;
|
|
font->glyphs = NULL;
|
|
|
|
if (count > 0)
|
|
font->glyphs = (rdtkGlyph*)calloc(font->glyphCount, sizeof(rdtkGlyph));
|
|
|
|
if (!font->glyphs)
|
|
return -1;
|
|
|
|
p = beg;
|
|
size_t index = 0;
|
|
|
|
while (p < end)
|
|
{
|
|
p = strstr(p, "<Char ");
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
p += sizeof("<Char ") - 1;
|
|
char* r = strstr(p, "/>");
|
|
|
|
if (!r)
|
|
return -1;
|
|
|
|
*r = '\0';
|
|
/* start parsing glyph */
|
|
if (index >= font->glyphCount)
|
|
return -1;
|
|
|
|
rdtkGlyph* glyph = &font->glyphs[index];
|
|
/* parse glyph width */
|
|
p = strstr(p, "width=\"");
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
p += sizeof("width=\"") - 1;
|
|
q = strchr(p, '"');
|
|
|
|
if (!q)
|
|
return -1;
|
|
|
|
*q = '\0';
|
|
errno = 0;
|
|
{
|
|
long val = strtoul(p, NULL, 0);
|
|
|
|
if ((errno != 0) || (val < INT32_MIN) || (val > INT32_MAX))
|
|
return -1;
|
|
|
|
glyph->width = val;
|
|
}
|
|
*q = '"';
|
|
|
|
if (glyph->width < 0)
|
|
return -1;
|
|
|
|
p = q + 1;
|
|
/* parse glyph offset x,y */
|
|
p = strstr(p, "offset=\"");
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
p += sizeof("offset=\"") - 1;
|
|
q = strchr(p, '"');
|
|
|
|
if (!q)
|
|
return -1;
|
|
|
|
char* tok[4] = { 0 };
|
|
*q = '\0';
|
|
tok[0] = p;
|
|
p = strchr(tok[0] + 1, ' ');
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
*p = 0;
|
|
tok[1] = p + 1;
|
|
errno = 0;
|
|
{
|
|
long val = strtol(tok[0], NULL, 0);
|
|
|
|
if ((errno != 0) || (val < INT32_MIN) || (val > INT32_MAX))
|
|
return -1;
|
|
|
|
glyph->offsetX = val;
|
|
}
|
|
{
|
|
long val = strtol(tok[1], NULL, 0);
|
|
|
|
if ((errno != 0) || (val < INT32_MIN) || (val > INT32_MAX))
|
|
return -1;
|
|
|
|
glyph->offsetY = val;
|
|
}
|
|
*q = '"';
|
|
p = q + 1;
|
|
/* parse glyph rect x,y,w,h */
|
|
p = strstr(p, "rect=\"");
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
p += sizeof("rect=\"") - 1;
|
|
q = strchr(p, '"');
|
|
|
|
if (!q)
|
|
return -1;
|
|
|
|
*q = '\0';
|
|
tok[0] = p;
|
|
p = strchr(tok[0] + 1, ' ');
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
*p = 0;
|
|
tok[1] = p + 1;
|
|
p = strchr(tok[1] + 1, ' ');
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
*p = 0;
|
|
tok[2] = p + 1;
|
|
p = strchr(tok[2] + 1, ' ');
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
*p = 0;
|
|
tok[3] = p + 1;
|
|
errno = 0;
|
|
{
|
|
long val = strtol(tok[0], NULL, 0);
|
|
|
|
if ((errno != 0) || (val < INT32_MIN) || (val > INT32_MAX))
|
|
return -1;
|
|
|
|
glyph->rectX = val;
|
|
}
|
|
{
|
|
long val = strtol(tok[1], NULL, 0);
|
|
|
|
if ((errno != 0) || (val < INT32_MIN) || (val > INT32_MAX))
|
|
return -1;
|
|
|
|
glyph->rectY = val;
|
|
}
|
|
{
|
|
long val = strtol(tok[2], NULL, 0);
|
|
|
|
if ((errno != 0) || (val < INT32_MIN) || (val > INT32_MAX))
|
|
return -1;
|
|
|
|
glyph->rectWidth = val;
|
|
}
|
|
{
|
|
long val = strtol(tok[3], NULL, 0);
|
|
|
|
if ((errno != 0) || (val < INT32_MIN) || (val > INT32_MAX))
|
|
return -1;
|
|
|
|
glyph->rectHeight = val;
|
|
}
|
|
*q = '"';
|
|
p = q + 1;
|
|
/* parse code */
|
|
p = strstr(p, "code=\"");
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
p += sizeof("code=\"") - 1;
|
|
q = strchr(p, '"');
|
|
|
|
if (!q)
|
|
return -1;
|
|
|
|
*q = '\0';
|
|
rdtk_font_convert_descriptor_code_to_utf8(p, glyph->code);
|
|
*q = '"';
|
|
/* finish parsing glyph */
|
|
p = r + sizeof("/>");
|
|
*r = '/';
|
|
index++;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int rdtk_font_load_descriptor(rdtkFont* font, const char* filename)
|
|
{
|
|
size_t size = 0;
|
|
|
|
WINPR_ASSERT(font);
|
|
char* buffer = rdtk_font_load_descriptor_file(filename, &size);
|
|
|
|
if (!buffer)
|
|
return -1;
|
|
|
|
return rdtk_font_parse_descriptor_buffer(font, (uint8_t*)buffer, size);
|
|
}
|
|
|
|
rdtkFont* rdtk_font_new(rdtkEngine* engine, const char* path, const char* file)
|
|
{
|
|
size_t length = 0;
|
|
rdtkFont* font = NULL;
|
|
char* fontImageFile = NULL;
|
|
char* fontDescriptorFile = NULL;
|
|
|
|
WINPR_ASSERT(engine);
|
|
WINPR_ASSERT(path);
|
|
WINPR_ASSERT(file);
|
|
|
|
char* fontBaseFile = GetCombinedPath(path, file);
|
|
if (!fontBaseFile)
|
|
goto cleanup;
|
|
|
|
winpr_asprintf(&fontImageFile, &length, "%s." FILE_EXT, fontBaseFile);
|
|
if (!fontImageFile)
|
|
goto cleanup;
|
|
|
|
winpr_asprintf(&fontDescriptorFile, &length, "%s.xml", fontBaseFile);
|
|
if (!fontDescriptorFile)
|
|
goto cleanup;
|
|
|
|
if (!winpr_PathFileExists(fontImageFile))
|
|
goto cleanup;
|
|
|
|
if (!winpr_PathFileExists(fontDescriptorFile))
|
|
goto cleanup;
|
|
|
|
font = (rdtkFont*)calloc(1, sizeof(rdtkFont));
|
|
|
|
if (!font)
|
|
goto cleanup;
|
|
|
|
font->engine = engine;
|
|
font->image = winpr_image_new();
|
|
|
|
if (!font->image)
|
|
goto cleanup;
|
|
|
|
const int status = winpr_image_read(font->image, fontImageFile);
|
|
if (status < 0)
|
|
goto cleanup;
|
|
|
|
const int status2 = rdtk_font_load_descriptor(font, fontDescriptorFile);
|
|
if (status2 < 0)
|
|
goto cleanup;
|
|
|
|
free(fontBaseFile);
|
|
free(fontImageFile);
|
|
free(fontDescriptorFile);
|
|
return font;
|
|
cleanup:
|
|
free(fontBaseFile);
|
|
free(fontImageFile);
|
|
free(fontDescriptorFile);
|
|
|
|
rdtk_font_free(font);
|
|
return NULL;
|
|
}
|
|
|
|
static rdtkFont* rdtk_embedded_font_new(rdtkEngine* engine, const uint8_t* imageData,
|
|
size_t imageSize, const uint8_t* descriptorData,
|
|
size_t descriptorSize)
|
|
{
|
|
size_t size = 0;
|
|
uint8_t* buffer = NULL;
|
|
|
|
WINPR_ASSERT(engine);
|
|
|
|
rdtkFont* font = (rdtkFont*)calloc(1, sizeof(rdtkFont));
|
|
|
|
if (!font)
|
|
return NULL;
|
|
|
|
font->engine = engine;
|
|
font->image = winpr_image_new();
|
|
|
|
if (!font->image)
|
|
{
|
|
free(font);
|
|
return NULL;
|
|
}
|
|
|
|
const int status = winpr_image_read_buffer(font->image, imageData, imageSize);
|
|
if (status < 0)
|
|
{
|
|
winpr_image_free(font->image, TRUE);
|
|
free(font);
|
|
return NULL;
|
|
}
|
|
|
|
size = descriptorSize;
|
|
buffer = (uint8_t*)malloc(size);
|
|
|
|
if (!buffer)
|
|
goto fail;
|
|
|
|
CopyMemory(buffer, descriptorData, size);
|
|
const int status2 = rdtk_font_parse_descriptor_buffer(font, buffer, size);
|
|
free(buffer);
|
|
|
|
if (status2 < 0)
|
|
goto fail;
|
|
|
|
return font;
|
|
|
|
fail:
|
|
rdtk_font_free(font);
|
|
return NULL;
|
|
}
|
|
|
|
void rdtk_font_free(rdtkFont* font)
|
|
{
|
|
if (font)
|
|
{
|
|
free(font->family);
|
|
free(font->style);
|
|
winpr_image_free(font->image, TRUE);
|
|
free(font->glyphs);
|
|
free(font);
|
|
}
|
|
}
|
|
int rdtk_font_engine_init(rdtkEngine* engine)
|
|
{
|
|
WINPR_ASSERT(engine);
|
|
if (!engine->font)
|
|
{
|
|
const uint8_t* imageData = NULL;
|
|
const uint8_t* descriptorData = NULL;
|
|
const SSIZE_T imageSize =
|
|
rdtk_get_embedded_resource_file("source_serif_pro_regular_12." FILE_EXT, &imageData);
|
|
const SSIZE_T descriptorSize =
|
|
rdtk_get_embedded_resource_file("source_serif_pro_regular_12.xml", &descriptorData);
|
|
|
|
if ((imageSize < 0) || (descriptorSize < 0))
|
|
return -1;
|
|
|
|
engine->font = rdtk_embedded_font_new(engine, imageData, (size_t)imageSize, descriptorData,
|
|
(size_t)descriptorSize);
|
|
if (!engine->font)
|
|
return -1;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int rdtk_font_engine_uninit(rdtkEngine* engine)
|
|
{
|
|
WINPR_ASSERT(engine);
|
|
if (engine->font)
|
|
{
|
|
rdtk_font_free(engine->font);
|
|
engine->font = NULL;
|
|
}
|
|
|
|
return 1;
|
|
}
|