void atari_ntsc_init( atari_ntsc_t* ntsc, atari_ntsc_setup_t const* setup,
atari_ntsc_in_t const* palette )
{
int entry;
init_t impl;
if ( !setup )
setup = &atari_ntsc_composite;
init( &impl, setup );
// Palette stores R/G/B data for 'atari_ntsc_palette_size' entries
for ( entry = 0; entry < atari_ntsc_palette_size; entry++ )
{
float r = impl.to_float [*palette++];
float g = impl.to_float [*palette++];
float b = impl.to_float [*palette++];
float y, i, q = RGB_TO_YIQ( r, g, b, y, i );
// Generate kernel
int ir, ig, ib = YIQ_TO_RGB( y, i, q, impl.to_rgb, int, ir, ig );
atari_ntsc_rgb_t rgb = PACK_RGB( ir, ig, ib );
if ( ntsc )
{
atari_ntsc_rgb_t* kernel = ntsc->table [entry];
gen_kernel( &impl, y, i, q, kernel );
correct_errors( rgb, kernel );
}
}
}
void atari_ntsc_init( atari_ntsc_t* ntsc, atari_ntsc_setup_t const* setup )
{
/* Atari change: no alternating burst phases - remove merge_fields variable. */
int entry;
init_t impl;
/* Atari change: NES palette generation and reading removed.
Atari palette generation is located in colours_ntsc.c, and colours are read
from setup->yiq_palette. */
if ( !setup )
setup = &atari_ntsc_composite;
init( &impl, setup );
/* Atari change: no alternating burst phases - remove code for merge_fields. */
for ( entry = 0; entry < atari_ntsc_palette_size; entry++ )
{
/* Atari change: Instead of palette generation, load colours
from setup->yiq_palette. */
double y;
double i;
double q;
{
double *yiq_ptr = setup->yiq_palette + 3 * entry;
y = *yiq_ptr++;
i = *yiq_ptr++;
q = *yiq_ptr++;
}
i *= rgb_unit;
q *= rgb_unit;
y *= rgb_unit;
y += rgb_offset;
/* Generate kernel */
{
int r, g, b = YIQ_TO_RGB( y, i, q, impl.to_rgb, int, r, g );
/* blue tends to overflow, so clamp it */
atari_ntsc_rgb_t rgb = PACK_RGB( r, g, (b < 0x3E0 ? b: 0x3E0) );
if ( setup->palette_out )
RGB_PALETTE_OUT( rgb, &setup->palette_out [entry * 3] );
if ( ntsc )
{
atari_ntsc_rgb_t* kernel = ntsc->table [entry];
gen_kernel( &impl, y, i, q, kernel );
/* Atari change: no alternating burst phases - remove code for merge_fields. */
correct_errors( rgb, kernel );
}
}
}
}
/**
* Parse a CSS2 color specifier, return RGB value
*/
guint32
rsvg_css_parse_color (const char *str, gboolean * inherit)
{
gint val = 0;
SETINHERIT ();
if (str[0] == '#') {
int i;
for (i = 1; str[i]; i++) {
int hexval;
if (str[i] >= '0' && str[i] <= '9')
hexval = str[i] - '0';
else if (str[i] >= 'A' && str[i] <= 'F')
hexval = str[i] - 'A' + 10;
else if (str[i] >= 'a' && str[i] <= 'f')
hexval = str[i] - 'a' + 10;
else
break;
val = (val << 4) + hexval;
}
/* handle #rgb case */
if (i == 4) {
val = ((val & 0xf00) << 8) | ((val & 0x0f0) << 4) | (val & 0x00f);
val |= val << 4;
}
}
/* i want to use g_str_has_prefix but it isn't in my gstrfuncs.h?? */
else if (strstr (str, "rgb") != NULL) {
gint r, g, b;
r = g = b = 0;
if (strstr (str, "%") != 0) {
guint i, nb_toks;
char **toks;
/* assume rgb (9%, 100%, 23%) */
for (i = 0; str[i] != '('; i++);
i++;
toks = rsvg_css_parse_list (str + i, &nb_toks);
if (toks) {
if (nb_toks == 3) {
r = rsvg_css_clip_rgb_percent (g_ascii_strtod (toks[0], NULL));
g = rsvg_css_clip_rgb_percent (g_ascii_strtod (toks[1], NULL));
b = rsvg_css_clip_rgb_percent (g_ascii_strtod (toks[2], NULL));
}
g_strfreev (toks);
}
} else {
/* assume "rgb (r, g, b)" */
if (3 == sscanf (str, " rgb ( %d , %d , %d ) ", &r, &g, &b)) {
r = rsvg_css_clip_rgb (r);
g = rsvg_css_clip_rgb (g);
b = rsvg_css_clip_rgb (b);
} else
r = g = b = 0;
}
val = PACK_RGB (r, g, b);
} else if (!strcmp (str, "inherit"))
UNSETINHERIT ();
else {
static const ColorPair color_list[] = {
{"aliceblue", PACK_RGB (240, 248, 255)},
{"antiquewhite", PACK_RGB (250, 235, 215)},
{"aqua", PACK_RGB (0, 255, 255)},
{"aquamarine", PACK_RGB (127, 255, 212)},
{"azure", PACK_RGB (240, 255, 255)},
{"beige", PACK_RGB (245, 245, 220)},
{"bisque", PACK_RGB (255, 228, 196)},
{"black", PACK_RGB (0, 0, 0)},
{"blanchedalmond", PACK_RGB (255, 235, 205)},
{"blue", PACK_RGB (0, 0, 255)},
{"blueviolet", PACK_RGB (138, 43, 226)},
{"brown", PACK_RGB (165, 42, 42)},
{"burlywood", PACK_RGB (222, 184, 135)},
{"cadetblue", PACK_RGB (95, 158, 160)},
{"chartreuse", PACK_RGB (127, 255, 0)},
{"chocolate", PACK_RGB (210, 105, 30)},
{"coral", PACK_RGB (255, 127, 80)},
{"cornflowerblue", PACK_RGB (100, 149, 237)},
{"cornsilk", PACK_RGB (255, 248, 220)},
{"crimson", PACK_RGB (220, 20, 60)},
{"cyan", PACK_RGB (0, 255, 255)},
{"darkblue", PACK_RGB (0, 0, 139)},
{"darkcyan", PACK_RGB (0, 139, 139)},
{"darkgoldenrod", PACK_RGB (184, 132, 11)},
{"darkgray", PACK_RGB (169, 169, 169)},
{"darkgreen", PACK_RGB (0, 100, 0)},
{"darkgrey", PACK_RGB (169, 169, 169)},
{"darkkhaki", PACK_RGB (189, 183, 107)},
{"darkmagenta", PACK_RGB (139, 0, 139)},
{"darkolivegreen", PACK_RGB (85, 107, 47)},
{"darkorange", PACK_RGB (255, 140, 0)},
{"darkorchid", PACK_RGB (153, 50, 204)},
{"darkred", PACK_RGB (139, 0, 0)},
{"darksalmon", PACK_RGB (233, 150, 122)},
{"darkseagreen", PACK_RGB (143, 188, 143)},
{"darkslateblue", PACK_RGB (72, 61, 139)},
{"darkslategray", PACK_RGB (47, 79, 79)},
{"darkslategrey", PACK_RGB (47, 79, 79)},
{"darkturquoise", PACK_RGB (0, 206, 209)},
{"darkviolet", PACK_RGB (148, 0, 211)},
{"deeppink", PACK_RGB (255, 20, 147)},
{"deepskyblue", PACK_RGB (0, 191, 255)},
{"dimgray", PACK_RGB (105, 105, 105)},
{"dimgrey", PACK_RGB (105, 105, 105)},
{"dodgerblue", PACK_RGB (30, 144, 255)},
{"firebrick", PACK_RGB (178, 34, 34)},
{"floralwhite", PACK_RGB (255, 255, 240)},
{"forestgreen", PACK_RGB (34, 139, 34)},
{"fuchsia", PACK_RGB (255, 0, 255)},
{"gainsboro", PACK_RGB (220, 220, 220)},
{"ghostwhite", PACK_RGB (248, 248, 255)},
{"gold", PACK_RGB (255, 215, 0)},
{"goldenrod", PACK_RGB (218, 165, 32)},
{"gray", PACK_RGB (128, 128, 128)},
{"green", PACK_RGB (0, 128, 0)},
{"greenyellow", PACK_RGB (173, 255, 47)},
{"grey", PACK_RGB (128, 128, 128)},
{"honeydew", PACK_RGB (240, 255, 240)},
{"hotpink", PACK_RGB (255, 105, 180)},
{"indianred", PACK_RGB (205, 92, 92)},
{"indigo", PACK_RGB (75, 0, 130)},
{"ivory", PACK_RGB (255, 255, 240)},
{"khaki", PACK_RGB (240, 230, 140)},
{"lavender", PACK_RGB (230, 230, 250)},
{"lavenderblush", PACK_RGB (255, 240, 245)},
{"lawngreen", PACK_RGB (124, 252, 0)},
{"lemonchiffon", PACK_RGB (255, 250, 205)},
{"lightblue", PACK_RGB (173, 216, 230)},
{"lightcoral", PACK_RGB (240, 128, 128)},
{"lightcyan", PACK_RGB (224, 255, 255)},
{"lightgoldenrodyellow", PACK_RGB (250, 250, 210)},
{"lightgray", PACK_RGB (211, 211, 211)},
{"lightgreen", PACK_RGB (144, 238, 144)},
{"lightgrey", PACK_RGB (211, 211, 211)},
{"lightpink", PACK_RGB (255, 182, 193)},
{"lightsalmon", PACK_RGB (255, 160, 122)},
{"lightseagreen", PACK_RGB (32, 178, 170)},
{"lightskyblue", PACK_RGB (135, 206, 250)},
{"lightslategray", PACK_RGB (119, 136, 153)},
{"lightslategrey", PACK_RGB (119, 136, 153)},
{"lightsteelblue", PACK_RGB (176, 196, 222)},
{"lightyellow", PACK_RGB (255, 255, 224)},
{"lime", PACK_RGB (0, 255, 0)},
{"limegreen", PACK_RGB (50, 205, 50)},
{"linen", PACK_RGB (250, 240, 230)},
{"magenta", PACK_RGB (255, 0, 255)},
{"maroon", PACK_RGB (128, 0, 0)},
{"mediumaquamarine", PACK_RGB (102, 205, 170)},
{"mediumblue", PACK_RGB (0, 0, 205)},
{"mediumorchid", PACK_RGB (186, 85, 211)},
{"mediumpurple", PACK_RGB (147, 112, 219)},
{"mediumseagreen", PACK_RGB (60, 179, 113)},
{"mediumslateblue", PACK_RGB (123, 104, 238)},
{"mediumspringgreen", PACK_RGB (0, 250, 154)},
{"mediumturquoise", PACK_RGB (72, 209, 204)},
{"mediumvioletred", PACK_RGB (199, 21, 133)},
{"midnightblue", PACK_RGB (25, 25, 112)},
{"mintcream", PACK_RGB (245, 255, 250)},
{"mistyrose", PACK_RGB (255, 228, 225)},
{"moccasin", PACK_RGB (255, 228, 181)},
{"navajowhite", PACK_RGB (255, 222, 173)},
{"navy", PACK_RGB (0, 0, 128)},
{"oldlace", PACK_RGB (253, 245, 230)},
{"olive", PACK_RGB (128, 128, 0)},
{"olivedrab", PACK_RGB (107, 142, 35)},
{"orange", PACK_RGB (255, 165, 0)},
{"orangered", PACK_RGB (255, 69, 0)},
{"orchid", PACK_RGB (218, 112, 214)},
{"palegoldenrod", PACK_RGB (238, 232, 170)},
{"palegreen", PACK_RGB (152, 251, 152)},
{"paleturquoise", PACK_RGB (175, 238, 238)},
{"palevioletred", PACK_RGB (219, 112, 147)},
{"papayawhip", PACK_RGB (255, 239, 213)},
{"peachpuff", PACK_RGB (255, 218, 185)},
{"peru", PACK_RGB (205, 133, 63)},
{"pink", PACK_RGB (255, 192, 203)},
{"plum", PACK_RGB (221, 160, 203)},
{"powderblue", PACK_RGB (176, 224, 230)},
{"purple", PACK_RGB (128, 0, 128)},
{"red", PACK_RGB (255, 0, 0)},
{"rosybrown", PACK_RGB (188, 143, 143)},
{"royalblue", PACK_RGB (65, 105, 225)},
{"saddlebrown", PACK_RGB (139, 69, 19)},
{"salmon", PACK_RGB (250, 128, 114)},
{"sandybrown", PACK_RGB (244, 164, 96)},
{"seagreen", PACK_RGB (46, 139, 87)},
{"seashell", PACK_RGB (255, 245, 238)},
{"sienna", PACK_RGB (160, 82, 45)},
{"silver", PACK_RGB (192, 192, 192)},
{"skyblue", PACK_RGB (135, 206, 235)},
{"slateblue", PACK_RGB (106, 90, 205)},
{"slategray", PACK_RGB (119, 128, 144)},
{"slategrey", PACK_RGB (119, 128, 144)},
{"snow", PACK_RGB (255, 255, 250)},
{"springgreen", PACK_RGB (0, 255, 127)},
{"steelblue", PACK_RGB (70, 130, 180)},
{"tan", PACK_RGB (210, 180, 140)},
{"teal", PACK_RGB (0, 128, 128)},
{"thistle", PACK_RGB (216, 191, 216)},
{"tomato", PACK_RGB (255, 99, 71)},
{"turquoise", PACK_RGB (64, 224, 208)},
{"violet", PACK_RGB (238, 130, 238)},
{"wheat", PACK_RGB (245, 222, 179)},
{"white", PACK_RGB (255, 255, 255)},
{"whitesmoke", PACK_RGB (245, 245, 245)},
{"yellow", PACK_RGB (255, 255, 0)},
{"yellowgreen", PACK_RGB (154, 205, 50)}
};
ColorPair *result = bsearch (str, color_list,
sizeof (color_list) / sizeof (color_list[0]),
sizeof (ColorPair),
rsvg_css_color_compare);
/* default to black on failed lookup */
if (result == NULL) {
UNSETINHERIT ();
val = 0;
} else
val = result->rgb;
}
return val;
}
/**
* Read PNG file to RGB24 Buffer
*
* @param char *path
* @param int *width
* @param int *height
* @return pointer or NULL
**/
uint32_t *rgb24_from_png(const char *path, int *width, int *height)
{
int x, y;
uint8_t r, g, b;
uint32_t *buffer, *out;
/* libpng stuff */
png_structp png_ptr;
png_infop info_ptr;
png_byte channels;
png_bytep *row_pointers;
/* Open file */
FILE *fp = fopen(path, "rb");
if (!fp) {
return NULL;
}
/* Initialize */
png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr) {
png_destroy_read_struct(&png_ptr, NULL, NULL);
return NULL;
}
/* Error handling */
if (setjmp(png_jmpbuf(png_ptr))) {
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
if (fp) {
fclose(fp);
}
return NULL;
}
/* Init PNG stuff */
png_init_io(png_ptr, fp);
png_read_png(png_ptr, info_ptr, PNG_TRANSFORM_IDENTITY | PNG_TRANSFORM_EXPAND, NULL);
fclose(fp); fp = NULL;
/* Get width / height, channels */
*width = png_get_image_width(png_ptr, info_ptr);
*height = png_get_image_height(png_ptr, info_ptr);
channels = png_get_channels(png_ptr, info_ptr);
/* Setup buffers */
row_pointers = png_get_rows(png_ptr, info_ptr);
buffer = malloc(sizeof(*buffer) * (*width) * (*height));
if (!buffer) {
return NULL;
}
/*printf("Channels: %d\n", channels);*/
/* Copy to buffer, removing alpha */
out = buffer;
for (y = 0; y < *height; y++) {
for (x = 0; x < *width; x++) {
r = row_pointers[y][(x * channels) + 0],
g = row_pointers[y][(x * channels) + 1],
b = row_pointers[y][(x * channels) + 2];
PACK_RGB(r, g, b, tvxx_rgb_format_rgb24, *out);
out++;
}
}
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
return buffer;
}
/**
* rsvg_css_parse_color:
* @str: string to parse
* @inherit: whether to inherit
*
* Parse a CSS2 color specifier, return RGB value
*
* Returns: and RGB value
*/
guint32
rsvg_css_parse_color (const char *str, gboolean * inherit)
{
gint val = 0;
SETINHERIT ();
if (str[0] == '#') {
int i;
for (i = 1; str[i]; i++) {
int hexval;
if (str[i] >= '0' && str[i] <= '9')
hexval = str[i] - '0';
else if (str[i] >= 'A' && str[i] <= 'F')
hexval = str[i] - 'A' + 10;
else if (str[i] >= 'a' && str[i] <= 'f')
hexval = str[i] - 'a' + 10;
else
break;
val = (val << 4) + hexval;
}
/* handle #rgb case */
if (i == 4) {
val = ((val & 0xf00) << 8) | ((val & 0x0f0) << 4) | (val & 0x00f);
val |= val << 4;
}
val |= 0xff000000; /* opaque */
}
else if (g_str_has_prefix (str, "rgb")) {
gint r, g, b, a;
gboolean has_alpha;
guint nb_toks;
char **toks;
r = g = b = 0;
a = 255;
if (str[3] == 'a') {
/* "rgba" */
has_alpha = TRUE;
str += 4;
}
else {
/* "rgb" */
has_alpha = FALSE;
str += 3;
}
str = strchr (str, '(');
if (str == NULL)
return val;
toks = rsvg_css_parse_list (str + 1, &nb_toks);
if (toks) {
if (nb_toks == (has_alpha ? 4 : 3)) {
r = rsvg_css_clip_rgb_percent (toks[0], 255.0);
g = rsvg_css_clip_rgb_percent (toks[1], 255.0);
b = rsvg_css_clip_rgb_percent (toks[2], 255.0);
if (has_alpha)
a = rsvg_css_clip_rgb_percent (toks[3], 1.0);
else
a = 255;
}
g_strfreev (toks);
}
val = PACK_RGBA (r, g, b, a);
} else if (!strcmp (str, "inherit"))
UNSETINHERIT ();
else {
CRRgb rgb;
if (cr_rgb_set_from_name (&rgb, (const guchar *) str) == CR_OK) {
val = PACK_RGB (rgb.red, rgb.green, rgb.blue);
} else {
/* default to opaque black on failed lookup */
UNSETINHERIT ();
val = PACK_RGB (0, 0, 0);
}
}
return val;
}
/**
* Parse a CSS2 color specifier, return RGB value
*/
guint32
rsvg_css_parse_color (const char *str, gboolean * inherit)
{
gint val = 0;
SETINHERIT ();
if (str[0] == '#') {
int i;
for (i = 1; str[i]; i++) {
int hexval;
if (str[i] >= '0' && str[i] <= '9')
hexval = str[i] - '0';
else if (str[i] >= 'A' && str[i] <= 'F')
hexval = str[i] - 'A' + 10;
else if (str[i] >= 'a' && str[i] <= 'f')
hexval = str[i] - 'a' + 10;
else
break;
val = (val << 4) + hexval;
}
/* handle #rgb case */
if (i == 4) {
val = ((val & 0xf00) << 8) | ((val & 0x0f0) << 4) | (val & 0x00f);
val |= val << 4;
}
}
/* i want to use g_str_has_prefix but it isn't in my gstrfuncs.h?? */
else if (strstr (str, "rgb") != NULL) {
gint r, g, b;
r = g = b = 0;
if (strstr (str, "%") != 0) {
guint i, nb_toks;
char **toks;
/* assume rgb (9%, 100%, 23%) */
for (i = 0; str[i] != '('; i++);
i++;
toks = rsvg_css_parse_list (str + i, &nb_toks);
if (toks) {
if (nb_toks == 3) {
r = rsvg_css_clip_rgb_percent (g_ascii_strtod (toks[0], NULL));
g = rsvg_css_clip_rgb_percent (g_ascii_strtod (toks[1], NULL));
b = rsvg_css_clip_rgb_percent (g_ascii_strtod (toks[2], NULL));
}
g_strfreev (toks);
}
} else {
/* assume "rgb (r, g, b)" */
if (3 == sscanf (str, " rgb ( %d , %d , %d ) ", &r, &g, &b)) {
r = rsvg_css_clip_rgb (r);
g = rsvg_css_clip_rgb (g);
b = rsvg_css_clip_rgb (b);
} else
r = g = b = 0;
}
val = PACK_RGB (r, g, b);
} else if (!strcmp (str, "inherit"))
UNSETINHERIT ();
else {
CRRgb rgb;
if (cr_rgb_set_from_name (&rgb, (const guchar *) str) == CR_OK) {
val = PACK_RGB (rgb.red, rgb.green, rgb.blue);
} else {
/* default to black on failed lookup */
UNSETINHERIT ();
val = 0;
}
}
return val;
}
static unsigned int
_svg_color_get_two_hex_digits (const char *str);
static svg_status_t
_svg_color_parse_component (const char **str, unsigned int *component);
typedef struct svg_color_map {
const char *name;
svg_color_t color;
} svg_color_map_t;
/* pack 3 [0,255] ints into one 32 bit one */
#define PACK_RGB(r,g,b) (((r) << 16) | ((g) << 8) | (b))
static const svg_color_map_t SVG_COLOR_MAP[] = {
{ "aliceblue", { 0, PACK_RGB (240,248,255) }},
{ "antiquewhite", { 0, PACK_RGB (250,235,215) }},
{ "aqua", { 0, PACK_RGB ( 0,255,255) }},
{ "aquamarine", { 0, PACK_RGB (127,255,212) }},
{ "azure", { 0, PACK_RGB (240,255,255) }},
{ "beige", { 0, PACK_RGB (245,245,220) }},
{ "bisque", { 0, PACK_RGB (255,228,196) }},
{ "black", { 0, PACK_RGB ( 0, 0, 0) }},
{ "blanchedalmond", { 0, PACK_RGB (255,235,205) }},
{ "blue", { 0, PACK_RGB ( 0, 0,255) }},
{ "blueviolet", { 0, PACK_RGB (138, 43,226) }},
{ "brown", { 0, PACK_RGB (165, 42, 42) }},
{ "burlywood", { 0, PACK_RGB (222,184,135) }},
{ "cadetblue", { 0, PACK_RGB ( 95,158,160) }},
{ "chartreuse", { 0, PACK_RGB (127,255, 0) }},
{ "chocolate", { 0, PACK_RGB (210,105, 30) }},
