35 #define RGBA(r, g, b, a) (((uint8_t)(r) << 0) | \
36 ((uint8_t)(g) << 8) | \
37 ((uint8_t)(b) << 16) | \
38 ((unsigned)(uint8_t)(a) << 24))
49 tmp = (color0 >> 11) * 255 + 16;
51 tmp = ((color0 & 0x07E0) >> 5) * 255 + 32;
53 tmp = (color0 & 0x001F) * 255 + 16;
56 tmp = (color1 >> 11) * 255 + 16;
58 tmp = ((color1 & 0x07E0) >> 5) * 255 + 32;
60 tmp = (color1 & 0x001F) * 255 + 16;
63 if (dxtn || color0 > color1) {
64 colors[0] =
RGBA(r0, g0,
b0,
a);
65 colors[1] =
RGBA(r1, g1,
b1,
a);
66 colors[2] =
RGBA((2 * r0 + r1) / 3,
70 colors[3] =
RGBA((2 * r1 + r0) / 3,
75 colors[0] =
RGBA(r0, g0,
b0,
a);
76 colors[1] =
RGBA(r1, g1,
b1,
a);
77 colors[2] =
RGBA((r0 + r1) / 2,
96 for (y = 0; y < 4; y++) {
97 for (x = 0; x < 4; x++) {
150 for (y = 0; y < 4; y++) {
154 alpha_values[0] = ((alpha_code >> 0) & 0x0F) * 17;
155 alpha_values[1] = ((alpha_code >> 4) & 0x0F) * 17;
156 alpha_values[2] = ((alpha_code >> 8) & 0x0F) * 17;
157 alpha_values[3] = ((alpha_code >> 12) & 0x0F) * 17;
159 for (x = 0; x < 4; x++) {
200 for (y = 0; y < 4; y++)
201 for (x = 0; x < 4; x++)
245 for (
i = 0;
i < 8;
i++)
246 dst[
i] = (
tmp >> (
i * 3)) & 0x7;
269 for (y = 0; y < 4; y++) {
270 for (x = 0; x < 4; x++) {
271 int alpha_code = alpha_indices[x + y * 4];
275 if (alpha_code == 0) {
277 }
else if (alpha_code == 1) {
280 if (alpha0 > alpha1) {
282 (alpha_code - 1) * alpha1) / 7);
284 if (alpha_code == 6) {
286 }
else if (alpha_code == 7) {
290 (alpha_code - 1) * alpha1) / 5);
319 for (y = 0; y < 4; y++)
320 for (x = 0; x < 4; x++)
355 int s = scaled ? (
b >> 3) + 1 : 1;
357 int co = (
r - 128) /
s;
358 int cg = (
g - 128) /
s;
363 src[3] = scaled ? 255 :
b;
383 for (y = 0; y < 4; y++)
384 for (x = 0; x < 4; x++)
407 for (y = 0; y < 4; y++)
408 for (x = 0; x < 4; x++)
416 const int *color_tab,
int mono,
int offset,
int pix_size)
427 for (y = 0; y < 4; y++) {
428 for (x = 0; x < 4; x++) {
429 int i = indices[x + y * 4];
431 int c = color_tab[
i];
453 r0 = ((int8_t)
block[0]) + 128;
454 r1 = ((int8_t)
block[1]) + 128;
561 for (y = 0; y < 4; y++) {
562 for (x = 0; x < 4; x++) {
564 int r = c0[x * 4 + y * 16];
565 int g =
c1[x * 4 + y * 16];
568 int d = (255 * 255 -
r *
r -
g *
g) / 2;
627 for (y = 0; y < 4; y++) {
628 for (x = 0; x < 4; x++) {
Macro definitions for various function/variable attributes.
common internal and external API header
#define FFSWAP(type, a, b)
static const int16_t alpha[]
Replacements for frequently missing libm functions.
static int rgtc1u_gray_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a RGTC1 texture with unsigned components to Gray 8.
av_cold void ff_texturedsp_init(TextureDSPContext *c)
static void dxt5_block_internal(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
static int dxt4_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a DXT4 texture and store the resulting RGBA pixels in 'dst'.
static void decompress_indices(uint8_t *dst, const uint8_t *src)
Decompress a BC 16x3 index block stored as h g f e d c b a p o n m l k j i.
static int rgtc2u_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a RGRC2 texture with unsigned components and store the resulting RGBA pixels ...
static int dxt5_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a DXT5 texture and store the resulting RGBA pixels in 'dst'.
static void rgtc_block_internal(uint8_t *dst, ptrdiff_t stride, const uint8_t *block, const int *color_tab, int mono, int offset, int pix_size)
static av_always_inline void ycocg2rgba(uint8_t *src, int scaled)
Convert a YCoCg buffer to RGBA.
static av_always_inline void premult2straight(uint8_t *src)
Convert a premultiplied alpha pixel to a straight alpha pixel.
static int dxn3dc_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a 3Dc texture with unsigned components and store the resulting RGBA pixels in...
static int rgtc1u_alpha_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a RGTC1 texture with unsigned components and overwrite the alpha component in...
static void dxt1_block_internal(uint8_t *dst, ptrdiff_t stride, const uint8_t *block, uint8_t alpha)
static int dxt1a_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a DXT1 with 1-bit alpha texture and store the resulting RGBA pixels in 'dst'.
static int dxt1_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a DXT1 texture and store the resulting RGBA pixels in 'dst'.
static int rgtc1s_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a RGRC1 texture with signed components and store the resulting RGBA pixels in...
static void dxt3_block_internal(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
static void rgtc2_block_internal(uint8_t *dst, ptrdiff_t stride, const uint8_t *block, int sign)
static void rgtc1_block_internal(uint8_t *dst, ptrdiff_t stride, const uint8_t *block, int sign, int mono, int offset, int pix_size)
static int dxt5ys_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a DXT5 texture with scaled YCoCg and store the resulting RGBA pixels in 'dst'...
static int dxt5y_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a DXT5 texture with classic YCoCg and store the resulting RGBA pixels in 'dst...
static int dxt2_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a DXT2 texture and store the resulting RGBA pixels in 'dst'.
static av_always_inline void extract_color(uint32_t colors[4], uint16_t color0, uint16_t color1, int dxtn, int alpha)
static int rgtc1u_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a RGRC1 texture with unsigned components and store the resulting RGBA pixels ...
static int dxt3_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a DXT3 texture and store the resulting RGBA pixels in 'dst'.
static int rgtc2s_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
Decompress one block of a RGRC2 texture with signed components and store the resulting RGBA pixels in...
Texture block (4x4) module.
static const uint8_t offset[127][2]
static double b1(void *priv, double x, double y)
static double b0(void *priv, double x, double y)
static const ColorEntry color_table[]