diff options
Diffstat (limited to 'src/mesa/main/format_unpack.c')
| -rw-r--r-- | src/mesa/main/format_unpack.c | 499 |
1 files changed, 499 insertions, 0 deletions
diff --git a/src/mesa/main/format_unpack.c b/src/mesa/main/format_unpack.c index c723e896de7..a7308a1578f 100644 --- a/src/mesa/main/format_unpack.c +++ b/src/mesa/main/format_unpack.c @@ -29,6 +29,22 @@ #include "../../gallium/auxiliary/util/u_format_r11g11b10f.h" + +/* Expand 1, 2, 3, 4, 5, 6-bit values to fill 8 bits */ + +#define EXPAND_1_8(X) ( (X) ? 0xff : 0x0 ) + +#define EXPAND_2_8(X) ( ((X) << 6) | ((X) << 4) | ((X) << 2) | (X) ) + +#define EXPAND_3_8(X) ( ((X) << 5) | ((X) << 2) | ((X) > 1) ) + +#define EXPAND_4_8(X) ( ((X) << 4) | (X) ) + +#define EXPAND_5_8(X) ( ((X) << 3) | ((X) >> 2) ) + +#define EXPAND_6_8(X) ( ((X) << 2) | ((X) >> 4) ) + + /** * Convert an 8-bit sRGB value from non-linear space to a * linear RGB value in [0, 1]. @@ -57,6 +73,10 @@ nonlinear_to_linear(GLubyte cs8) } +/**********************************************************************/ +/* Unpack, returning GLfloat colors */ +/**********************************************************************/ + typedef void (*unpack_rgba_func)(const void *src, GLfloat dst[][4], GLuint n); @@ -1566,6 +1586,9 @@ get_unpack_rgba_function(gl_format format) } +/** + * Unpack rgba colors, returning as GLfloat values. + */ void _mesa_unpack_rgba_row(gl_format format, GLuint n, const void *src, GLfloat dst[][4]) @@ -1574,6 +1597,482 @@ _mesa_unpack_rgba_row(gl_format format, GLuint n, unpack(src, dst, n); } + +/**********************************************************************/ +/* Unpack, returning GLubyte colors */ +/**********************************************************************/ + + +static void +unpack_ubyte_RGBA8888(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLuint *s = ((const GLuint *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = (s[i] >> 24); + dst[i][GCOMP] = (s[i] >> 16) & 0xff; + dst[i][BCOMP] = (s[i] >> 8) & 0xff; + dst[i][ACOMP] = (s[i] ) & 0xff; + } +} + +static void +unpack_ubyte_RGBA8888_REV(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLuint *s = ((const GLuint *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = (s[i] ) & 0xff; + dst[i][GCOMP] = (s[i] >> 8) & 0xff; + dst[i][BCOMP] = (s[i] >> 16) & 0xff; + dst[i][ACOMP] = (s[i] >> 24); + } +} + +static void +unpack_ubyte_ARGB8888(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLuint *s = ((const GLuint *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = (s[i] >> 16) & 0xff; + dst[i][GCOMP] = (s[i] >> 8) & 0xff; + dst[i][BCOMP] = (s[i] ) & 0xff; + dst[i][ACOMP] = (s[i] >> 24); + } +} + +static void +unpack_ubyte_ARGB8888_REV(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLuint *s = ((const GLuint *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = (s[i] >> 8) & 0xff; + dst[i][GCOMP] = (s[i] >> 16) & 0xff; + dst[i][BCOMP] = (s[i] >> 24); + dst[i][ACOMP] = (s[i] ) & 0xff; + } +} + +static void +unpack_ubyte_RGBX8888(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLuint *s = ((const GLuint *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = (s[i] >> 24); + dst[i][GCOMP] = (s[i] >> 16) & 0xff; + dst[i][BCOMP] = (s[i] >> 8) & 0xff; + dst[i][ACOMP] = 0xff; + } +} + +static void +unpack_ubyte_RGBX8888_REV(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLuint *s = ((const GLuint *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = (s[i] ) & 0xff; + dst[i][GCOMP] = (s[i] >> 8) & 0xff; + dst[i][BCOMP] = (s[i] >> 16) & 0xff; + dst[i][ACOMP] = 0xff; + } +} + +static void +unpack_ubyte_XRGB8888(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLuint *s = ((const GLuint *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = (s[i] >> 16) & 0xff; + dst[i][GCOMP] = (s[i] >> 8) & 0xff; + dst[i][BCOMP] = (s[i] ) & 0xff; + dst[i][ACOMP] = 0xff; + } +} + +static void +unpack_ubyte_XRGB8888_REV(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLuint *s = ((const GLuint *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = (s[i] >> 8) & 0xff; + dst[i][GCOMP] = (s[i] >> 16) & 0xff; + dst[i][BCOMP] = (s[i] >> 24); + dst[i][ACOMP] = 0xff; + } +} + +static void +unpack_ubyte_RGB888(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLubyte *s = (const GLubyte *) src; + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = s[i*3+2]; + dst[i][GCOMP] = s[i*3+1]; + dst[i][BCOMP] = s[i*3+0]; + dst[i][ACOMP] = 0xff; + } +} + +static void +unpack_ubyte_BGR888(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLubyte *s = (const GLubyte *) src; + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = s[i*3+0]; + dst[i][GCOMP] = s[i*3+1]; + dst[i][BCOMP] = s[i*3+2]; + dst[i][ACOMP] = 0xff; + } +} + +static void +unpack_ubyte_RGB565(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLushort *s = ((const GLushort *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = EXPAND_5_8((s[i] >> 11) & 0x1f); + dst[i][GCOMP] = EXPAND_6_8((s[i] >> 5 ) & 0x3f); + dst[i][BCOMP] = EXPAND_5_8( s[i] & 0x1f); + dst[i][ACOMP] = 0xff; + } +} + +static void +unpack_ubyte_RGB565_REV(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLushort *s = ((const GLushort *) src); + GLuint i; + for (i = 0; i < n; i++) { + GLuint t = (s[i] >> 8) | (s[i] << 8); /* byte swap */ + dst[i][RCOMP] = EXPAND_5_8((t >> 11) & 0x1f); + dst[i][GCOMP] = EXPAND_6_8((t >> 5 ) & 0x3f); + dst[i][BCOMP] = EXPAND_5_8( t & 0x1f); + dst[i][ACOMP] = 0xff; + } +} + +static void +unpack_ubyte_ARGB4444(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLushort *s = ((const GLushort *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = EXPAND_4_8((s[i] >> 8) & 0xf); + dst[i][GCOMP] = EXPAND_4_8((s[i] >> 4) & 0xf); + dst[i][BCOMP] = EXPAND_4_8((s[i] ) & 0xf); + dst[i][ACOMP] = EXPAND_4_8((s[i] >> 12) & 0xf); + } +} + +static void +unpack_ubyte_ARGB4444_REV(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLushort *s = ((const GLushort *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = EXPAND_4_8((s[i] ) & 0xf); + dst[i][GCOMP] = EXPAND_4_8((s[i] >> 12) & 0xf); + dst[i][BCOMP] = EXPAND_4_8((s[i] >> 8) & 0xf); + dst[i][ACOMP] = EXPAND_4_8((s[i] >> 4) & 0xf); + } +} + +static void +unpack_ubyte_RGBA5551(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLushort *s = ((const GLushort *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = EXPAND_5_8((s[i] >> 11) & 0x1f); + dst[i][GCOMP] = EXPAND_5_8((s[i] >> 6) & 0x1f); + dst[i][BCOMP] = EXPAND_5_8((s[i] >> 1) & 0x1f); + dst[i][ACOMP] = EXPAND_1_8((s[i] ) & 0x01); + } +} + +static void +unpack_ubyte_ARGB1555(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLushort *s = ((const GLushort *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = EXPAND_5_8((s[i] >> 10) & 0x1f); + dst[i][GCOMP] = EXPAND_5_8((s[i] >> 5) & 0x1f); + dst[i][BCOMP] = EXPAND_5_8((s[i] >> 0) & 0x1f); + dst[i][ACOMP] = EXPAND_1_8((s[i] >> 15) & 0x01); + } +} + +static void +unpack_ubyte_ARGB1555_REV(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLushort *s = ((const GLushort *) src); + GLuint i; + for (i = 0; i < n; i++) { + GLushort tmp = (s[i] << 8) | (s[i] >> 8); /* byteswap */ + dst[i][RCOMP] = EXPAND_5_8((tmp >> 10) & 0x1f); + dst[i][GCOMP] = EXPAND_5_8((tmp >> 5) & 0x1f); + dst[i][BCOMP] = EXPAND_5_8((tmp >> 0) & 0x1f); + dst[i][ACOMP] = EXPAND_1_8((tmp >> 15) & 0x01); + } +} + +static void +unpack_ubyte_AL44(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLubyte *s = ((const GLubyte *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = + dst[i][GCOMP] = + dst[i][BCOMP] = EXPAND_4_8(s[i] & 0xf); + dst[i][ACOMP] = EXPAND_4_8(s[i] >> 4); + } +} + +static void +unpack_ubyte_AL88(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLushort *s = ((const GLushort *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = + dst[i][GCOMP] = + dst[i][BCOMP] = EXPAND_4_8(s[i] & 0xff); + dst[i][ACOMP] = EXPAND_4_8(s[i] >> 8); + } +} + +static void +unpack_ubyte_AL88_REV(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLushort *s = ((const GLushort *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = + dst[i][GCOMP] = + dst[i][BCOMP] = EXPAND_4_8(s[i] >> 8); + dst[i][ACOMP] = EXPAND_4_8(s[i] & 0xff); + } +} + +static void +unpack_ubyte_RGB332(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLubyte *s = ((const GLubyte *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = EXPAND_3_8((s[i] >> 5) & 0x7); + dst[i][GCOMP] = EXPAND_3_8((s[i] >> 2) & 0x7); + dst[i][BCOMP] = EXPAND_2_8((s[i] ) & 0x3); + dst[i][ACOMP] = 0xff; + } +} + +static void +unpack_ubyte_A8(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLubyte *s = ((const GLubyte *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = + dst[i][GCOMP] = + dst[i][BCOMP] = 0; + dst[i][ACOMP] = s[i]; + } +} + +static void +unpack_ubyte_L8(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLubyte *s = ((const GLubyte *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = + dst[i][GCOMP] = + dst[i][BCOMP] = s[i]; + dst[i][ACOMP] = 0xff; + } +} + + +static void +unpack_ubyte_I8(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLubyte *s = ((const GLubyte *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = + dst[i][GCOMP] = + dst[i][BCOMP] = + dst[i][ACOMP] = s[i]; + } +} + +static void +unpack_ubyte_R8(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLubyte *s = ((const GLubyte *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][0] = s[i]; + dst[i][1] = + dst[i][2] = 0; + dst[i][3] = 0xff; + } +} + +static void +unpack_ubyte_GR88(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLushort *s = ((const GLushort *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = s[i] & 0xff; + dst[i][GCOMP] = s[i] >> 8; + dst[i][BCOMP] = 0; + dst[i][ACOMP] = 0xff; + } +} + +static void +unpack_ubyte_RG88(const void *src, GLubyte dst[][4], GLuint n) +{ + const GLushort *s = ((const GLushort *) src); + GLuint i; + for (i = 0; i < n; i++) { + dst[i][RCOMP] = s[i] >> 8; + dst[i][GCOMP] = s[i] & 0xff; + dst[i][BCOMP] = 0; + dst[i][ACOMP] = 0xff; + } +} + + +/** + * Unpack rgba colors, returning as GLubyte values. This should usually + * only be used for unpacking formats that use 8 bits or less per channel. + */ +void +_mesa_unpack_ubyte_rgba_row(gl_format format, GLuint n, + const void *src, GLubyte dst[][4]) +{ + switch (format) { + case MESA_FORMAT_RGBA8888: + unpack_ubyte_RGBA8888(src, dst, n); + break; + case MESA_FORMAT_RGBA8888_REV: + unpack_ubyte_RGBA8888_REV(src, dst, n); + break; + case MESA_FORMAT_ARGB8888: + unpack_ubyte_ARGB8888(src, dst, n); + break; + case MESA_FORMAT_ARGB8888_REV: + unpack_ubyte_ARGB8888_REV(src, dst, n); + break; + case MESA_FORMAT_RGBX8888: + unpack_ubyte_RGBX8888(src, dst, n); + break; + case MESA_FORMAT_RGBX8888_REV: + unpack_ubyte_RGBX8888_REV(src, dst, n); + break; + case MESA_FORMAT_XRGB8888: + unpack_ubyte_XRGB8888(src, dst, n); + break; + case MESA_FORMAT_XRGB8888_REV: + unpack_ubyte_XRGB8888_REV(src, dst, n); + break; + case MESA_FORMAT_RGB888: + unpack_ubyte_RGB888(src, dst, n); + break; + case MESA_FORMAT_BGR888: + unpack_ubyte_BGR888(src, dst, n); + break; + case MESA_FORMAT_RGB565: + unpack_ubyte_RGB565(src, dst, n); + break; + case MESA_FORMAT_RGB565_REV: + unpack_ubyte_RGB565_REV(src, dst, n); + break; + case MESA_FORMAT_ARGB4444: + unpack_ubyte_ARGB4444(src, dst, n); + break; + case MESA_FORMAT_ARGB4444_REV: + unpack_ubyte_ARGB4444_REV(src, dst, n); + break; + case MESA_FORMAT_RGBA5551: + unpack_ubyte_RGBA5551(src, dst, n); + break; + case MESA_FORMAT_ARGB1555: + unpack_ubyte_ARGB1555(src, dst, n); + break; + case MESA_FORMAT_ARGB1555_REV: + unpack_ubyte_ARGB1555_REV(src, dst, n); + break; + case MESA_FORMAT_AL44: + unpack_ubyte_AL44(src, dst, n); + break; + case MESA_FORMAT_AL88: + unpack_ubyte_AL88(src, dst, n); + break; + case MESA_FORMAT_AL88_REV: + unpack_ubyte_AL88_REV(src, dst, n); + break; + case MESA_FORMAT_RGB332: + unpack_ubyte_RGB332(src, dst, n); + break; + case MESA_FORMAT_A8: + unpack_ubyte_A8(src, dst, n); + break; + case MESA_FORMAT_L8: + unpack_ubyte_L8(src, dst, n); + break; + case MESA_FORMAT_I8: + unpack_ubyte_I8(src, dst, n); + break; + case MESA_FORMAT_R8: + unpack_ubyte_R8(src, dst, n); + break; + case MESA_FORMAT_GR88: + unpack_ubyte_GR88(src, dst, n); + break; + case MESA_FORMAT_RG88: + unpack_ubyte_RG88(src, dst, n); + break; + default: + /* get float values, convert to ubyte */ + { + GLfloat *tmp = (GLfloat *) malloc(n * 4 * sizeof(GLfloat)); + if (tmp) { + GLuint i; + _mesa_unpack_rgba_row(format, n, src, (GLfloat (*)[4]) tmp); + for (i = 0; i < n; i++) { + UNCLAMPED_FLOAT_TO_UBYTE(dst[i][0], tmp[i*4+0]); + UNCLAMPED_FLOAT_TO_UBYTE(dst[i][1], tmp[i*4+1]); + UNCLAMPED_FLOAT_TO_UBYTE(dst[i][2], tmp[i*4+2]); + UNCLAMPED_FLOAT_TO_UBYTE(dst[i][3], tmp[i*4+3]); + } + free(tmp); + } + } + break; + } +} + + +/**********************************************************************/ +/* Unpack, returning GLuint colors */ +/**********************************************************************/ + static void unpack_int_rgba_RGBA_UINT32(const GLuint *src, GLuint dst[][4], GLuint n) { |