void
util_format_r8g8_b8g8_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride,
const uint8_t *src_row, unsigned src_stride,
unsigned width, unsigned height)
{
unsigned x, y;
for (y = 0; y < height; y += 1) {
float *dst = dst_row;
const uint32_t *src = (const uint32_t *)src_row;
uint32_t value;
float r, g0, g1, b;
for (x = 0; x + 1 < width; x += 2) {
value = *src++;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
r = ubyte_to_float((value >> 0) & 0xff);
g0 = ubyte_to_float((value >> 8) & 0xff);
b = ubyte_to_float((value >> 16) & 0xff);
g1 = ubyte_to_float((value >> 24) & 0xff);
dst[0] = r; /* r */
dst[1] = g0; /* g */
dst[2] = b; /* b */
dst[3] = 1.0f; /* a */
dst += 4;
dst[0] = r; /* r */
dst[1] = g1; /* g */
dst[2] = b; /* b */
dst[3] = 1.0f; /* a */
dst += 4;
}
if (x < width) {
value = *src;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
r = ubyte_to_float((value >> 0) & 0xff);
g0 = ubyte_to_float((value >> 8) & 0xff);
b = ubyte_to_float((value >> 16) & 0xff);
g1 = ubyte_to_float((value >> 24) & 0xff);
dst[0] = r; /* r */
dst[1] = g0; /* g */
dst[2] = b; /* b */
dst[3] = 1.0f; /* a */
}
src_row += src_stride/sizeof(*src_row);
dst_row += dst_stride/sizeof(*dst_row);
}
void
util_format_r9g9b9e5_float_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
const uint8_t *src_row, unsigned src_stride,
unsigned width, unsigned height)
{
unsigned x, y;
float p[3];
for(y = 0; y < height; y += 1) {
uint8_t *dst = dst_row;
const uint8_t *src = src_row;
for(x = 0; x < width; x += 1) {
uint32_t value = *(const uint32_t *)src;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
rgb9e5_to_float3(value, p);
dst[0] = float_to_ubyte(p[0]); /* r */
dst[1] = float_to_ubyte(p[1]); /* g */
dst[2] = float_to_ubyte(p[2]); /* b */
dst[3] = 255; /* a */
src += 4;
dst += 4;
}
src_row += src_stride;
dst_row += dst_stride/sizeof(*dst_row);
}
}
void
util_format_r8g8bx_snorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
const uint8_t *src_row, unsigned src_stride,
unsigned width, unsigned height)
{
unsigned x, y;
for(y = 0; y < height; y += 1) {
const uint8_t *src = src_row;
uint16_t *dst = (uint16_t *)dst_row;
for(x = 0; x < width; x += 1) {
uint16_t value = 0;
value |= src[0] >> 1;
value |= (src[1] >> 1) << 8;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*dst++ = value;
src += 4;
}
dst_row += dst_stride;
src_row += src_stride/sizeof(*src_row);
}
}
void
util_format_r8g8bx_snorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
const float *src_row, unsigned src_stride,
unsigned width, unsigned height)
{
unsigned x, y;
for(y = 0; y < height; y += 1) {
const float *src = src_row;
uint16_t *dst = (uint16_t *)dst_row;
for(x = 0; x < width; x += 1) {
uint16_t value = 0;
value |= (uint16_t)(((int8_t)(CLAMP(src[0], -1, 1) * 0x7f)) & 0xff) ;
value |= (uint16_t)((((int8_t)(CLAMP(src[1], -1, 1) * 0x7f)) & 0xff) << 8) ;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*dst++ = value;
src += 4;
}
dst_row += dst_stride;
src_row += src_stride/sizeof(*src_row);
}
}
void
util_format_r8g8bx_snorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
const uint8_t *src_row, unsigned src_stride,
unsigned width, unsigned height)
{
unsigned x, y;
for(y = 0; y < height; y += 1) {
uint8_t *dst = dst_row;
const uint16_t *src = (const uint16_t *)src_row;
for(x = 0; x < width; x += 1) {
uint16_t value = *src++;
int16_t r, g;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
r = ((int16_t)(value << 8)) >> 8;
g = ((int16_t)(value << 0)) >> 8;
dst[0] = (uint8_t)(((uint16_t)MAX2(r, 0)) * 0xff / 0x7f); /* r */
dst[1] = (uint8_t)(((uint16_t)MAX2(g, 0)) * 0xff / 0x7f); /* g */
dst[2] = r8g8bx_derive(r, g); /* b */
dst[3] = 255; /* a */
dst += 4;
}
src_row += src_stride;
dst_row += dst_stride/sizeof(*dst_row);
}
}
void
util_format_r11g11b10_float_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
const uint8_t *src_row, unsigned src_stride,
unsigned width, unsigned height)
{
unsigned x, y;
float p[3];
for(y = 0; y < height; y += 1) {
const uint8_t *src = src_row;
uint8_t *dst = dst_row;
for(x = 0; x < width; x += 1) {
uint32_t value;
p[0] = ubyte_to_float(src[0]);
p[1] = ubyte_to_float(src[1]);
p[2] = ubyte_to_float(src[2]);
value = float3_to_r11g11b10f(p);
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*(uint32_t *)dst = value;
src += 4;
dst += 4;
}
dst_row += dst_stride;
src_row += src_stride/sizeof(*src_row);
}
}
void
util_format_r9g9b9e5_float_fetch_rgba_float(float *dst, const uint8_t *src,
unsigned i, unsigned j)
{
uint32_t value = *(const uint32_t *)src;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
rgb9e5_to_float3(value, dst);
dst[3] = 1; /* a */
}
static void
emit_R10G10B10A2_SSCALED( const void *attrib, void *ptr)
{
float *src = (float *)ptr;
uint32_t value = 0;
value |= (uint32_t)(((uint32_t)CLAMP(src[0], -512, 511)) & 0x3ff) ;
value |= (uint32_t)((((uint32_t)CLAMP(src[1], -512, 511)) & 0x3ff) << 10) ;
value |= (uint32_t)((((uint32_t)CLAMP(src[2], -512, 511)) & 0x3ff) << 20) ;
value |= (uint32_t)(((uint32_t)CLAMP(src[3], -2, 1)) << 30) ;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*(uint32_t *)attrib = value;
}
static void
emit_R10G10B10A2_UNORM( const void *attrib, void *ptr )
{
float *src = (float *)ptr;
uint32_t value = 0;
value |= ((uint32_t)(CLAMP(src[0], 0, 1) * 0x3ff)) & 0x3ff;
value |= (((uint32_t)(CLAMP(src[1], 0, 1) * 0x3ff)) & 0x3ff) << 10;
value |= (((uint32_t)(CLAMP(src[2], 0, 1) * 0x3ff)) & 0x3ff) << 20;
value |= ((uint32_t)(CLAMP(src[3], 0, 1) * 0x3)) << 30;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*(uint32_t *)attrib = value;
}
void
util_format_r8g8bx_snorm_fetch_rgba_float(float *dst, const uint8_t *src,
unsigned i, unsigned j)
{
uint16_t value = *(const uint16_t *)src;
int16_t r, g;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
r = ((int16_t)(value << 8)) >> 8;
g = ((int16_t)(value << 0)) >> 8;
dst[0] = r * (1.0f/0x7f); /* r */
dst[1] = g * (1.0f/0x7f); /* g */
dst[2] = r8g8bx_derive(r, g) * (1.0f/0xff); /* b */
dst[3] = 1.0f; /* a */
}
void
util_format_r9g9b9e5_float_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
const float *src_row, unsigned src_stride,
unsigned width, unsigned height)
{
unsigned x, y;
for(y = 0; y < height; y += 1) {
const float *src = src_row;
uint8_t *dst = dst_row;
for(x = 0; x < width; x += 1) {
uint32_t value = float3_to_rgb9e5(src);
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*(uint32_t *)dst = value;
src += 4;
dst += 4;
}
dst_row += dst_stride;
src_row += src_stride/sizeof(*src_row);
}
}
void
util_format_r9g9b9e5_float_unpack_rgba_float(float *dst_row, unsigned dst_stride,
const uint8_t *src_row, unsigned src_stride,
unsigned width, unsigned height)
{
unsigned x, y;
for(y = 0; y < height; y += 1) {
float *dst = dst_row;
const uint8_t *src = src_row;
for(x = 0; x < width; x += 1) {
uint32_t value = *(const uint32_t *)src;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
rgb9e5_to_float3(value, dst);
dst[3] = 1; /* a */
src += 4;
dst += 4;
}
src_row += src_stride;
dst_row += dst_stride/sizeof(*dst_row);
}
}
