diff options
Diffstat (limited to 'mesalib/src/mesa/main/format_unpack.c')
| -rw-r--r-- | mesalib/src/mesa/main/format_unpack.c | 1494 |
1 files changed, 1494 insertions, 0 deletions
diff --git a/mesalib/src/mesa/main/format_unpack.c b/mesalib/src/mesa/main/format_unpack.c new file mode 100644 index 000000000..c5146f72d --- /dev/null +++ b/mesalib/src/mesa/main/format_unpack.c @@ -0,0 +1,1494 @@ +/* + * Mesa 3-D graphics library + * + * Copyright (c) 2011 VMware, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#include "colormac.h" +#include "format_unpack.h" +#include "macros.h" +#include "../../gallium/auxiliary/util/u_format_rgb9e5.h" +#include "../../gallium/auxiliary/util/u_format_r11g11b10f.h" + + +/** + * Convert an 8-bit sRGB value from non-linear space to a + * linear RGB value in [0, 1]. + * Implemented with a 256-entry lookup table. + */ +static INLINE GLfloat +nonlinear_to_linear(GLubyte cs8) +{ + static GLfloat table[256]; + static GLboolean tableReady = GL_FALSE; + if (!tableReady) { + /* compute lookup table now */ + GLuint i; + for (i = 0; i < 256; i++) { + const GLfloat cs = UBYTE_TO_FLOAT(i); + if (cs <= 0.04045) { + table[i] = cs / 12.92f; + } + else { + table[i] = (GLfloat) pow((cs + 0.055) / 1.055, 2.4); + } + } + tableReady = GL_TRUE; + } + return table[cs8]; +} + + +typedef void (*unpack_rgba_func)(const void *src, GLfloat dst[4]); + + +static void +unpack_RGBA8888(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); + dst[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); + dst[BCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); + dst[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); +} + +static void +unpack_RGBA8888_REV(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); + dst[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); + dst[BCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); + dst[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); +} + +static void +unpack_ARGB8888(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); + dst[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); + dst[BCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); + dst[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); +} + +static void +unpack_ARGB8888_REV(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); + dst[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); + dst[BCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); + dst[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); +} + +static void +unpack_XRGB8888(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); + dst[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); + dst[BCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); + dst[ACOMP] = 1.0f; +} + +static void +unpack_XRGB8888_REV(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); + dst[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); + dst[BCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); + dst[ACOMP] = 1.0f; +} + +static void +unpack_RGB888(const void *src, GLfloat dst[4]) +{ + const GLubyte *s = (const GLubyte *) src; + dst[RCOMP] = UBYTE_TO_FLOAT( s[2] ); + dst[GCOMP] = UBYTE_TO_FLOAT( s[1] ); + dst[BCOMP] = UBYTE_TO_FLOAT( s[0] ); + dst[ACOMP] = 1.0F; +} + +static void +unpack_BGR888(const void *src, GLfloat dst[4]) +{ + const GLubyte *s = (const GLubyte *) src; + dst[RCOMP] = UBYTE_TO_FLOAT( s[0] ); + dst[GCOMP] = UBYTE_TO_FLOAT( s[1] ); + dst[BCOMP] = UBYTE_TO_FLOAT( s[2] ); + dst[ACOMP] = 1.0F; +} + +static void +unpack_RGB565(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F); + dst[GCOMP] = ((s >> 5 ) & 0x3f) * (1.0F / 63.0F); + dst[BCOMP] = ((s ) & 0x1f) * (1.0F / 31.0F); + dst[ACOMP] = 1.0F; +} + +static void +unpack_RGB565_REV(const void *src, GLfloat dst[4]) +{ + GLushort s = *((const GLushort *) src); + s = (s >> 8) | (s << 8); /* byte swap */ + dst[RCOMP] = UBYTE_TO_FLOAT( ((s >> 8) & 0xf8) | ((s >> 13) & 0x7) ); + dst[GCOMP] = UBYTE_TO_FLOAT( ((s >> 3) & 0xfc) | ((s >> 9) & 0x3) ); + dst[BCOMP] = UBYTE_TO_FLOAT( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) ); + dst[ACOMP] = 1.0F; +} + +static void +unpack_ARGB4444(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F); + dst[GCOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); + dst[BCOMP] = ((s ) & 0xf) * (1.0F / 15.0F); + dst[ACOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F); +} + +static void +unpack_ARGB4444_REV(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = ((s ) & 0xf) * (1.0F / 15.0F); + dst[GCOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F); + dst[BCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F); + dst[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); +} + +static void +unpack_RGBA5551(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F); + dst[GCOMP] = ((s >> 6) & 0x1f) * (1.0F / 31.0F); + dst[BCOMP] = ((s >> 1) & 0x1f) * (1.0F / 31.0F); + dst[ACOMP] = ((s ) & 0x01) * 1.0F; +} + +static void +unpack_ARGB1555(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = ((s >> 10) & 0x1f) * (1.0F / 31.0F); + dst[GCOMP] = ((s >> 5) & 0x1f) * (1.0F / 31.0F); + dst[BCOMP] = ((s >> 0) & 0x1f) * (1.0F / 31.0F); + dst[ACOMP] = ((s >> 15) & 0x01) * 1.0F; +} + +static void +unpack_ARGB1555_REV(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = UBYTE_TO_FLOAT( ((s >> 7) & 0xf8) | ((s >> 12) & 0x7) ); + dst[GCOMP] = UBYTE_TO_FLOAT( ((s >> 2) & 0xf8) | ((s >> 7) & 0x7) ); + dst[BCOMP] = UBYTE_TO_FLOAT( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) ); + dst[ACOMP] = UBYTE_TO_FLOAT( ((s >> 15) & 0x01) * 255 ); +} + +static void +unpack_AL44(const void *src, GLfloat dst[4]) +{ + const GLubyte s = *((const GLubyte *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = (s & 0xf) * (1.0F / 15.0F); + dst[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); +} + +static void +unpack_AL88(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = UBYTE_TO_FLOAT( s & 0xff ); + dst[ACOMP] = UBYTE_TO_FLOAT( s >> 8 ); +} + +static void +unpack_AL88_REV(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = UBYTE_TO_FLOAT( s >> 8 ); + dst[ACOMP] = UBYTE_TO_FLOAT( s & 0xff ); +} + +static void +unpack_AL1616(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = USHORT_TO_FLOAT( s & 0xffff ); + dst[ACOMP] = USHORT_TO_FLOAT( s >> 16 ); +} + +static void +unpack_AL1616_REV(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = USHORT_TO_FLOAT( s >> 16 ); + dst[ACOMP] = USHORT_TO_FLOAT( s & 0xffff ); +} + +static void +unpack_RGB332(const void *src, GLfloat dst[4]) +{ + const GLubyte s = *((const GLubyte *) src); + dst[RCOMP] = ((s >> 5) & 0x7) * (1.0F / 7.0F); + dst[GCOMP] = ((s >> 2) & 0x7) * (1.0F / 7.0F); + dst[BCOMP] = ((s ) & 0x3) * (1.0F / 3.0F); + dst[ACOMP] = 1.0F; +} + + +static void +unpack_A8(const void *src, GLfloat dst[4]) +{ + const GLubyte s = *((const GLubyte *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = 0.0F; + dst[ACOMP] = UBYTE_TO_FLOAT(s); +} + +static void +unpack_A16(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = 0.0F; + dst[ACOMP] = USHORT_TO_FLOAT(s); +} + +static void +unpack_L8(const void *src, GLfloat dst[4]) +{ + const GLubyte s = *((const GLubyte *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = UBYTE_TO_FLOAT(s); + dst[ACOMP] = 1.0F; +} + +static void +unpack_L16(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = USHORT_TO_FLOAT(s); + dst[ACOMP] = 1.0F; +} + +static void +unpack_I8(const void *src, GLfloat dst[4]) +{ + const GLubyte s = *((const GLubyte *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = + dst[ACOMP] = UBYTE_TO_FLOAT(s); +} + +static void +unpack_I16(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = + dst[ACOMP] = USHORT_TO_FLOAT(s); +} + +static void +unpack_YCBCR(const void *src, GLfloat dst[4]) +{ + const GLuint i = 0; + const GLushort *src0 = (const GLushort *) src; + const GLushort *src1 = src0 + 1; /* odd */ + const GLubyte y0 = (*src0 >> 8) & 0xff; /* luminance */ + const GLubyte cb = *src0 & 0xff; /* chroma U */ + const GLubyte y1 = (*src1 >> 8) & 0xff; /* luminance */ + const GLubyte cr = *src1 & 0xff; /* chroma V */ + const GLubyte y = (i & 1) ? y1 : y0; /* choose even/odd luminance */ + GLfloat r = 1.164F * (y - 16) + 1.596F * (cr - 128); + GLfloat g = 1.164F * (y - 16) - 0.813F * (cr - 128) - 0.391F * (cb - 128); + GLfloat b = 1.164F * (y - 16) + 2.018F * (cb - 128); + r *= (1.0F / 255.0F); + g *= (1.0F / 255.0F); + b *= (1.0F / 255.0F); + dst[RCOMP] = CLAMP(r, 0.0F, 1.0F); + dst[GCOMP] = CLAMP(g, 0.0F, 1.0F); + dst[BCOMP] = CLAMP(b, 0.0F, 1.0F); + dst[ACOMP] = 1.0F; +} + +static void +unpack_YCBCR_REV(const void *src, GLfloat dst[4]) +{ + const GLuint i = 0; + const GLushort *src0 = (const GLushort *) src; + const GLushort *src1 = src0 + 1; /* odd */ + const GLubyte y0 = *src0 & 0xff; /* luminance */ + const GLubyte cr = (*src0 >> 8) & 0xff; /* chroma V */ + const GLubyte y1 = *src1 & 0xff; /* luminance */ + const GLubyte cb = (*src1 >> 8) & 0xff; /* chroma U */ + const GLubyte y = (i & 1) ? y1 : y0; /* choose even/odd luminance */ + GLfloat r = 1.164F * (y - 16) + 1.596F * (cr - 128); + GLfloat g = 1.164F * (y - 16) - 0.813F * (cr - 128) - 0.391F * (cb - 128); + GLfloat b = 1.164F * (y - 16) + 2.018F * (cb - 128); + r *= (1.0F / 255.0F); + g *= (1.0F / 255.0F); + b *= (1.0F / 255.0F); + dst[RCOMP] = CLAMP(r, 0.0F, 1.0F); + dst[GCOMP] = CLAMP(g, 0.0F, 1.0F); + dst[BCOMP] = CLAMP(b, 0.0F, 1.0F); + dst[ACOMP] = 1.0F; +} + +static void +unpack_R8(const void *src, GLfloat dst[4]) +{ + const GLubyte s = *((const GLubyte *) src); + dst[0] = UBYTE_TO_FLOAT(s); + dst[1] = dst[2] = 0.0F; + dst[3] = 1.0F; +} + +static void +unpack_RG88(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = UBYTE_TO_FLOAT( s & 0xff ); + dst[GCOMP] = UBYTE_TO_FLOAT( s >> 8 ); + dst[BCOMP] = 0.0; + dst[ACOMP] = 1.0; +} + +static void +unpack_RG88_REV(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = UBYTE_TO_FLOAT( s & 0xff ); + dst[GCOMP] = UBYTE_TO_FLOAT( s >> 8 ); + dst[BCOMP] = 0.0; + dst[ACOMP] = 1.0; +} + +static void +unpack_R16(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = USHORT_TO_FLOAT(s); + dst[GCOMP] = 0.0; + dst[BCOMP] = 0.0; + dst[ACOMP] = 1.0; +} + +static void +unpack_RG1616(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = USHORT_TO_FLOAT( s & 0xffff ); + dst[GCOMP] = USHORT_TO_FLOAT( s >> 16 ); + dst[BCOMP] = 0.0; + dst[ACOMP] = 1.0; +} + +static void +unpack_RG1616_REV(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = USHORT_TO_FLOAT( s >> 16 ); + dst[GCOMP] = USHORT_TO_FLOAT( s & 0xffff ); + dst[BCOMP] = 0.0; + dst[ACOMP] = 1.0; +} + +static void +unpack_ARGB2101010(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = ((s >> 20) & 0x3ff) * (1.0F / 1023.0F); + dst[GCOMP] = ((s >> 10) & 0x3ff) * (1.0F / 1023.0F); + dst[BCOMP] = ((s >> 0) & 0x3ff) * (1.0F / 1023.0F); + dst[ACOMP] = ((s >> 30) & 0x03) * (1.0F / 3.0F); +} + + +static void +unpack_Z24_S8(const void *src, GLfloat dst[4]) +{ + /* only return Z, not stencil data */ + const GLuint s = *((const GLuint *) src); + const GLfloat scale = 1.0F / (GLfloat) 0xffffff; + dst[0] = dst[1] = dst[2] = (s >> 8) * scale; + dst[3] = 1.0F; + ASSERT(dst[0] >= 0.0F); + ASSERT(dst[0] <= 1.0F); +} + +static void +unpack_S8_Z24(const void *src, GLfloat dst[4]) +{ + /* only return Z, not stencil data */ + const GLuint s = *((const GLuint *) src); + const GLfloat scale = 1.0F / (GLfloat) 0xffffff; + dst[0] = dst[1] = dst[2] = (s & 0x00ffffff) * scale; + dst[3] = 1.0F; + ASSERT(dst[0] >= 0.0F); + ASSERT(dst[0] <= 1.0F); +} + +static void +unpack_Z16(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[0] = dst[1] = dst[2] = s * (1.0F / 65535.0F); + dst[3] = 1.0F; +} + +static void +unpack_X8_Z24(const void *src, GLfloat dst[4]) +{ + unpack_S8_Z24(src, dst); +} + +static void +unpack_Z24_X8(const void *src, GLfloat dst[4]) +{ + unpack_Z24_S8(src, dst); +} + +static void +unpack_Z32(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[0] = dst[1] = dst[2] = s * (1.0F / 0xffffffff); + dst[3] = 1.0F; +} + +static void +unpack_Z32_FLOAT(const void *src, GLfloat dst[4]) +{ + const GLfloat s = *((const GLfloat *) src); + dst[0] = dst[1] = dst[2] = s; + dst[3] = 1.0F; +} + +static void +unpack_Z32_FLOAT_X24S8(const void *src, GLfloat dst[4]) +{ + const GLfloat s = *((const GLfloat *) src); + dst[0] = dst[1] = dst[2] = s; + dst[3] = 1.0F; +} + + +static void +unpack_S8(const void *src, GLfloat dst[4]) +{ + /* should never be used */ + dst[0] = dst[1] = dst[2] = 0.0F; + dst[3] = 1.0F; +} + + +static void +unpack_SRGB8(const void *src, GLfloat dst[4]) +{ + const GLubyte *s = (const GLubyte *) src; + dst[RCOMP] = nonlinear_to_linear(s[2]); + dst[GCOMP] = nonlinear_to_linear(s[1]); + dst[BCOMP] = nonlinear_to_linear(s[0]); + dst[ACOMP] = 1.0F; +} + +static void +unpack_SRGBA8(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = nonlinear_to_linear( (s >> 24) ); + dst[GCOMP] = nonlinear_to_linear( (s >> 16) & 0xff ); + dst[BCOMP] = nonlinear_to_linear( (s >> 8) & 0xff ); + dst[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); /* linear! */ +} + +static void +unpack_SARGB8(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = nonlinear_to_linear( (s >> 16) & 0xff ); + dst[GCOMP] = nonlinear_to_linear( (s >> 8) & 0xff ); + dst[BCOMP] = nonlinear_to_linear( (s ) & 0xff ); + dst[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); /* linear! */ +} + +static void +unpack_SL8(const void *src, GLfloat dst[4]) +{ + const GLubyte s = *((const GLubyte *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = nonlinear_to_linear(s); + dst[ACOMP] = 1.0F; +} + +static void +unpack_SLA8(const void *src, GLfloat dst[4]) +{ + const GLubyte *s = (const GLubyte *) src; + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = nonlinear_to_linear(s[0]); + dst[ACOMP] = UBYTE_TO_FLOAT(s[1]); /* linear */ +} + +static void +unpack_SRGB_DXT1(const void *src, GLfloat dst[4]) +{ +} + +static void +unpack_SRGBA_DXT1(const void *src, GLfloat dst[4]) +{ +} + +static void +unpack_SRGBA_DXT3(const void *src, GLfloat dst[4]) +{ +} + +static void +unpack_SRGBA_DXT5(const void *src, GLfloat dst[4]) +{ +} + +static void +unpack_RGB_FXT1(const void *src, GLfloat dst[4]) +{ +} + +static void +unpack_RGBA_FXT1(const void *src, GLfloat dst[4]) +{ +} + +static void +unpack_RGB_DXT1(const void *src, GLfloat dst[4]) +{ +} + +static void +unpack_RGBA_DXT1(const void *src, GLfloat dst[4]) +{ +} + +static void +unpack_RGBA_DXT3(const void *src, GLfloat dst[4]) +{ +} + +static void +unpack_RGBA_DXT5(const void *src, GLfloat dst[4]) +{ +} + + +static void +unpack_RGBA_FLOAT32(const void *src, GLfloat dst[4]) +{ + const GLfloat *s = (const GLfloat *) src; + dst[RCOMP] = s[0]; + dst[GCOMP] = s[1]; + dst[BCOMP] = s[2]; + dst[ACOMP] = s[3]; +} + +static void +unpack_RGBA_FLOAT16(const void *src, GLfloat dst[4]) +{ + const GLhalfARB *s = (const GLhalfARB *) src; + dst[RCOMP] = _mesa_half_to_float(s[0]); + dst[GCOMP] = _mesa_half_to_float(s[1]); + dst[BCOMP] = _mesa_half_to_float(s[2]); + dst[ACOMP] = _mesa_half_to_float(s[3]); +} + +static void +unpack_RGB_FLOAT32(const void *src, GLfloat dst[4]) +{ + const GLfloat *s = (const GLfloat *) src; + dst[RCOMP] = s[0]; + dst[GCOMP] = s[1]; + dst[BCOMP] = s[2]; + dst[ACOMP] = 1.0F; +} + +static void +unpack_RGB_FLOAT16(const void *src, GLfloat dst[4]) +{ + const GLhalfARB *s = (const GLhalfARB *) src; + dst[RCOMP] = _mesa_half_to_float(s[0]); + dst[GCOMP] = _mesa_half_to_float(s[1]); + dst[BCOMP] = _mesa_half_to_float(s[2]); + dst[ACOMP] = 1.0F; +} + +static void +unpack_ALPHA_FLOAT32(const void *src, GLfloat dst[4]) +{ + const GLfloat *s = (const GLfloat *) src; + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = 0.0F; + dst[ACOMP] = s[0]; +} + +static void +unpack_ALPHA_FLOAT16(const void *src, GLfloat dst[4]) +{ + const GLhalfARB *s = (const GLhalfARB *) src; + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = 0.0F; + dst[ACOMP] = _mesa_half_to_float(s[0]); +} + +static void +unpack_LUMINANCE_FLOAT32(const void *src, GLfloat dst[4]) +{ + const GLfloat *s = (const GLfloat *) src; + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = s[0]; + dst[ACOMP] = 1.0F; +} + +static void +unpack_LUMINANCE_FLOAT16(const void *src, GLfloat dst[4]) +{ + const GLhalfARB *s = (const GLhalfARB *) src; + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = _mesa_half_to_float(s[0]); + dst[ACOMP] = 1.0F; +} + +static void +unpack_LUMINANCE_ALPHA_FLOAT32(const void *src, GLfloat dst[4]) +{ + const GLfloat *s = (const GLfloat *) src; + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = s[0]; + dst[ACOMP] = s[1]; +} + +static void +unpack_LUMINANCE_ALPHA_FLOAT16(const void *src, GLfloat dst[4]) +{ + const GLhalfARB *s = (const GLhalfARB *) src; + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = _mesa_half_to_float(s[0]); + dst[ACOMP] = _mesa_half_to_float(s[1]); +} + +static void +unpack_INTENSITY_FLOAT32(const void *src, GLfloat dst[4]) +{ + const GLfloat *s = (const GLfloat *) src; + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = + dst[ACOMP] = s[0]; +} + +static void +unpack_INTENSITY_FLOAT16(const void *src, GLfloat dst[4]) +{ + const GLhalfARB *s = (const GLhalfARB *) src; + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = + dst[ACOMP] = s[0]; +} + +static void +unpack_R_FLOAT32(const void *src, GLfloat dst[4]) +{ + const GLfloat *s = (const GLfloat *) src; + dst[RCOMP] = s[0]; + dst[GCOMP] = 0.0F; + dst[BCOMP] = 0.0F; + dst[ACOMP] = 1.0F; +} + +static void +unpack_R_FLOAT16(const void *src, GLfloat dst[4]) +{ + const GLhalfARB *s = (const GLhalfARB *) src; + dst[RCOMP] = _mesa_half_to_float(s[0]); + dst[GCOMP] = 0.0F; + dst[BCOMP] = 0.0F; + dst[ACOMP] = 1.0F; +} + +static void +unpack_RG_FLOAT32(const void *src, GLfloat dst[4]) +{ + const GLfloat *s = (const GLfloat *) src; + dst[RCOMP] = s[0]; + dst[GCOMP] = s[1]; + dst[BCOMP] = 0.0F; + dst[ACOMP] = 1.0F; +} + +static void +unpack_RG_FLOAT16(const void *src, GLfloat dst[4]) +{ + const GLhalfARB *s = (const GLhalfARB *) src; + dst[RCOMP] = _mesa_half_to_float(s[0]); + dst[GCOMP] = _mesa_half_to_float(s[1]); + dst[BCOMP] = 0.0F; + dst[ACOMP] = 1.0F; +} + + +static void +unpack_RGBA_INT8(const void *src, GLfloat dst[4]) +{ + const GLbyte *s = (const GLbyte *) src; + dst[RCOMP] = (GLfloat) s[0]; + dst[GCOMP] = (GLfloat) s[1]; + dst[BCOMP] = (GLfloat) s[2]; + dst[ACOMP] = (GLfloat) s[3]; +} + +static void +unpack_RGBA_INT16(const void *src, GLfloat dst[4]) +{ + const GLshort *s = (const GLshort *) src; + dst[RCOMP] = (GLfloat) s[0]; + dst[GCOMP] = (GLfloat) s[1]; + dst[BCOMP] = (GLfloat) s[2]; + dst[ACOMP] = (GLfloat) s[3]; +} + +static void +unpack_RGBA_INT32(const void *src, GLfloat dst[4]) +{ + const GLint *s = (const GLint *) src; + dst[RCOMP] = (GLfloat) s[0]; + dst[GCOMP] = (GLfloat) s[1]; + dst[BCOMP] = (GLfloat) s[2]; + dst[ACOMP] = (GLfloat) s[3]; +} + +static void +unpack_RGBA_UINT8(const void *src, GLfloat dst[4]) +{ + const GLubyte *s = (const GLubyte *) src; + dst[RCOMP] = (GLfloat) s[0]; + dst[GCOMP] = (GLfloat) s[1]; + dst[BCOMP] = (GLfloat) s[2]; + dst[ACOMP] = (GLfloat) s[3]; +} + +static void +unpack_RGBA_UINT16(const void *src, GLfloat dst[4]) +{ + const GLushort *s = (const GLushort *) src; + dst[RCOMP] = (GLfloat) s[0]; + dst[GCOMP] = (GLfloat) s[1]; + dst[BCOMP] = (GLfloat) s[2]; + dst[ACOMP] = (GLfloat) s[3]; +} + +static void +unpack_RGBA_UINT32(const void *src, GLfloat dst[4]) +{ + const GLuint *s = (const GLuint *) src; + dst[RCOMP] = (GLfloat) s[0]; + dst[GCOMP] = (GLfloat) s[1]; + dst[BCOMP] = (GLfloat) s[2]; + dst[ACOMP] = (GLfloat) s[3]; +} + +static void +unpack_DUDV8(const void *src, GLfloat dst[4]) +{ + const GLbyte *s = (const GLbyte *) src; + dst[RCOMP] = BYTE_TO_FLOAT(s[0]); + dst[GCOMP] = BYTE_TO_FLOAT(s[1]); + dst[BCOMP] = 0; + dst[ACOMP] = 0; +} + +static void +unpack_SIGNED_R8(const void *src, GLfloat dst[4]) +{ + const GLbyte s = *((const GLbyte *) src); + dst[RCOMP] = BYTE_TO_FLOAT_TEX( s ); + dst[GCOMP] = 0.0F; + dst[BCOMP] = 0.0F; + dst[ACOMP] = 1.0F; +} + +static void +unpack_SIGNED_RG88_REV(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLushort *) src); + dst[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) ); + dst[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); + dst[BCOMP] = 0.0F; + dst[ACOMP] = 1.0F; +} + +static void +unpack_SIGNED_RGBX8888(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); + dst[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); + dst[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); + dst[ACOMP] = 1.0f; +} + +static void +unpack_SIGNED_RGBA8888(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); + dst[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); + dst[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); + dst[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s ) ); +} + +static void +unpack_SIGNED_RGBA8888_REV(const void *src, GLfloat dst[4]) +{ + const GLuint s = *((const GLuint *) src); + dst[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s ) ); + dst[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); + dst[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); + dst[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); +} + +static void +unpack_SIGNED_R16(const void *src, GLfloat dst[4]) +{ + const GLshort s = *((const GLshort *) src); + dst[RCOMP] = SHORT_TO_FLOAT_TEX( s ); + dst[GCOMP] = 0.0F; + dst[BCOMP] = 0.0F; + dst[ACOMP] = 1.0F; +} + +static void +unpack_SIGNED_GR1616(const void *src, GLfloat dst[4]) +{ + /* XXX TODO */ +} + +static void +unpack_SIGNED_RGB_16(const void *src, GLfloat dst[4]) +{ + const GLshort *s = (const GLshort *) src; + dst[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); + dst[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); + dst[BCOMP] = SHORT_TO_FLOAT_TEX( s[2] ); + dst[ACOMP] = 1.0F; +} + +static void +unpack_SIGNED_RGBA_16(const void *src, GLfloat dst[4]) +{ + const GLshort *s = (const GLshort *) src; + dst[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); + dst[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); + dst[BCOMP] = SHORT_TO_FLOAT_TEX( s[2] ); + dst[ACOMP] = SHORT_TO_FLOAT_TEX( s[3] ); +} + +static void +unpack_RGBA_16(const void *src, GLfloat dst[4]) +{ + const GLshort *s = (const GLshort *) src; + dst[RCOMP] = USHORT_TO_FLOAT( s[0] ); + dst[GCOMP] = USHORT_TO_FLOAT( s[1] ); + dst[BCOMP] = USHORT_TO_FLOAT( s[2] ); + dst[ACOMP] = USHORT_TO_FLOAT( s[3] ); +} + +static void +unpack_RED_RGTC1(const void *src, GLfloat dst[4]) +{ + /* XXX to do */ +} + +static void +unpack_SIGNED_RED_RGTC1(const void *src, GLfloat dst[4]) +{ + /* XXX to do */ +} + +static void +unpack_RG_RGTC2(const void *src, GLfloat dst[4]) +{ + /* XXX to do */ +} + +static void +unpack_SIGNED_RG_RGTC2(const void *src, GLfloat dst[4]) +{ + /* XXX to do */ +} + +static void +unpack_L_LATC1(const void *src, GLfloat dst[4]) +{ + /* XXX to do */ +} + +static void +unpack_SIGNED_L_LATC1(const void *src, GLfloat dst[4]) +{ + /* XXX to do */ +} + +static void +unpack_LA_LATC2(const void *src, GLfloat dst[4]) +{ + /* XXX to do */ +} + +static void +unpack_SIGNED_LA_LATC2(const void *src, GLfloat dst[4]) +{ + /* XXX to do */ +} + +static void +unpack_SIGNED_A8(const void *src, GLfloat dst[4]) +{ + const GLbyte s = *((const GLbyte *) src); + dst[RCOMP] = 0.0F; + dst[GCOMP] = 0.0F; + dst[BCOMP] = 0.0F; + dst[ACOMP] = BYTE_TO_FLOAT_TEX( s ); +} + +static void +unpack_SIGNED_L8(const void *src, GLfloat dst[4]) +{ + const GLbyte s = *((const GLbyte *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = BYTE_TO_FLOAT_TEX( s ); + dst[ACOMP] = 1.0F; +} + +static void +unpack_SIGNED_AL88(const void *src, GLfloat dst[4]) +{ + const GLushort s = *((const GLshort *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) ); + dst[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); +} + +static void +unpack_SIGNED_I8(const void *src, GLfloat dst[4]) +{ + const GLbyte s = *((const GLbyte *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = + dst[ACOMP] = BYTE_TO_FLOAT_TEX( s ); +} + +static void +unpack_SIGNED_A16(const void *src, GLfloat dst[4]) +{ + const GLshort s = *((const GLshort *) src); + dst[RCOMP] = 0.0F; + dst[GCOMP] = 0.0F; + dst[BCOMP] = 0.0F; + dst[ACOMP] = SHORT_TO_FLOAT_TEX( s ); +} + +static void +unpack_SIGNED_L16(const void *src, GLfloat dst[4]) +{ + const GLshort s = *((const GLshort *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = SHORT_TO_FLOAT_TEX( s ); + dst[ACOMP] = 1.0F; +} + +static void +unpack_SIGNED_AL1616(const void *src, GLfloat dst[4]) +{ + const GLshort *s = (const GLshort *) src; + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); + dst[ACOMP] = SHORT_TO_FLOAT_TEX( s[1] ); +} + +static void +unpack_SIGNED_I16(const void *src, GLfloat dst[4]) +{ + const GLshort s = *((const GLshort *) src); + dst[RCOMP] = + dst[GCOMP] = + dst[BCOMP] = + dst[ACOMP] = SHORT_TO_FLOAT_TEX( s ); +} + +static void +unpack_RGB9_E5_FLOAT(const void *src, GLfloat dst[4]) +{ + const GLuint *s = (const GLuint *) src; + rgb9e5_to_float3(*s, dst); + dst[ACOMP] = 1.0F; +} + +static void +unpack_R11_G11_B10_FLOAT(const void *src, GLfloat dst[4]) +{ + const GLuint *s = (const GLuint *) src; + r11g11b10f_to_float3(*s, dst); + dst[ACOMP] = 1.0F; +} + + +/** + * Return the unpacker function for the given format. + */ +static unpack_rgba_func +get_unpack_rgba_function(gl_format format) +{ + static unpack_rgba_func table[MESA_FORMAT_COUNT]; + static GLboolean initialized = GL_FALSE; + + if (!initialized) { + table[MESA_FORMAT_NONE] = NULL; + + table[MESA_FORMAT_RGBA8888] = unpack_RGBA8888; + table[MESA_FORMAT_RGBA8888_REV] = unpack_RGBA8888_REV; + table[MESA_FORMAT_ARGB8888] = unpack_ARGB8888; + table[MESA_FORMAT_ARGB8888_REV] = unpack_ARGB8888_REV; + table[MESA_FORMAT_XRGB8888] = unpack_XRGB8888; + table[MESA_FORMAT_XRGB8888_REV] = unpack_XRGB8888_REV; + table[MESA_FORMAT_RGB888] = unpack_RGB888; + table[MESA_FORMAT_BGR888] = unpack_BGR888; + table[MESA_FORMAT_RGB565] = unpack_RGB565; + table[MESA_FORMAT_RGB565_REV] = unpack_RGB565_REV; + table[MESA_FORMAT_ARGB4444] = unpack_ARGB4444; + table[MESA_FORMAT_ARGB4444_REV] = unpack_ARGB4444_REV; + table[MESA_FORMAT_RGBA5551] = unpack_RGBA5551; + table[MESA_FORMAT_ARGB1555] = unpack_ARGB1555; + table[MESA_FORMAT_ARGB1555_REV] = unpack_ARGB1555_REV; + table[MESA_FORMAT_AL44] = unpack_AL44; + table[MESA_FORMAT_AL88] = unpack_AL88; + table[MESA_FORMAT_AL88_REV] = unpack_AL88_REV; + table[MESA_FORMAT_AL1616] = unpack_AL1616; + table[MESA_FORMAT_AL1616_REV] = unpack_AL1616_REV; + table[MESA_FORMAT_RGB332] = unpack_RGB332; + table[MESA_FORMAT_A8] = unpack_A8; + table[MESA_FORMAT_A16] = unpack_A16; + table[MESA_FORMAT_L8] = unpack_L8; + table[MESA_FORMAT_L16] = unpack_L16; + table[MESA_FORMAT_I8] = unpack_I8; + table[MESA_FORMAT_I16] = unpack_I16; + table[MESA_FORMAT_YCBCR] = unpack_YCBCR; + table[MESA_FORMAT_YCBCR_REV] = unpack_YCBCR_REV; + table[MESA_FORMAT_R8] = unpack_R8; + table[MESA_FORMAT_RG88] = unpack_RG88; + table[MESA_FORMAT_RG88_REV] = unpack_RG88_REV; + table[MESA_FORMAT_R16] = unpack_R16; + table[MESA_FORMAT_RG1616] = unpack_RG1616; + table[MESA_FORMAT_RG1616_REV] = unpack_RG1616_REV; + table[MESA_FORMAT_ARGB2101010] = unpack_ARGB2101010; + table[MESA_FORMAT_Z24_S8] = unpack_Z24_S8; + table[MESA_FORMAT_S8_Z24] = unpack_S8_Z24; + table[MESA_FORMAT_Z16] = unpack_Z16; + table[MESA_FORMAT_X8_Z24] = unpack_X8_Z24; + table[MESA_FORMAT_Z24_X8] = unpack_Z24_X8; + table[MESA_FORMAT_Z32] = unpack_Z32; + table[MESA_FORMAT_S8] = unpack_S8; + table[MESA_FORMAT_SRGB8] = unpack_SRGB8; + table[MESA_FORMAT_SRGBA8] = unpack_SRGBA8; + table[MESA_FORMAT_SARGB8] = unpack_SARGB8; + table[MESA_FORMAT_SL8] = unpack_SL8; + table[MESA_FORMAT_SLA8] = unpack_SLA8; + table[MESA_FORMAT_SRGB_DXT1] = unpack_SRGB_DXT1; + table[MESA_FORMAT_SRGBA_DXT1] = unpack_SRGBA_DXT1; + table[MESA_FORMAT_SRGBA_DXT3] = unpack_SRGBA_DXT3; + table[MESA_FORMAT_SRGBA_DXT5] = unpack_SRGBA_DXT5; + + table[MESA_FORMAT_RGB_FXT1] = unpack_RGB_FXT1; + table[MESA_FORMAT_RGBA_FXT1] = unpack_RGBA_FXT1; + table[MESA_FORMAT_RGB_DXT1] = unpack_RGB_DXT1; + table[MESA_FORMAT_RGBA_DXT1] = unpack_RGBA_DXT1; + table[MESA_FORMAT_RGBA_DXT3] = unpack_RGBA_DXT3; + table[MESA_FORMAT_RGBA_DXT5] = unpack_RGBA_DXT5; + + table[MESA_FORMAT_RGBA_FLOAT32] = unpack_RGBA_FLOAT32; + table[MESA_FORMAT_RGBA_FLOAT16] = unpack_RGBA_FLOAT16; + table[MESA_FORMAT_RGB_FLOAT32] = unpack_RGB_FLOAT32; + table[MESA_FORMAT_RGB_FLOAT16] = unpack_RGB_FLOAT16; + table[MESA_FORMAT_ALPHA_FLOAT32] = unpack_ALPHA_FLOAT32; + table[MESA_FORMAT_ALPHA_FLOAT16] = unpack_ALPHA_FLOAT16; + table[MESA_FORMAT_LUMINANCE_FLOAT32] = unpack_LUMINANCE_FLOAT32; + table[MESA_FORMAT_LUMINANCE_FLOAT16] = unpack_LUMINANCE_FLOAT16; + table[MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32] = unpack_LUMINANCE_ALPHA_FLOAT32; + table[MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16] = unpack_LUMINANCE_ALPHA_FLOAT16; + table[MESA_FORMAT_INTENSITY_FLOAT32] = unpack_INTENSITY_FLOAT32; + table[MESA_FORMAT_INTENSITY_FLOAT16] = unpack_INTENSITY_FLOAT16; + table[MESA_FORMAT_R_FLOAT32] = unpack_R_FLOAT32; + table[MESA_FORMAT_R_FLOAT16] = unpack_R_FLOAT16; + table[MESA_FORMAT_RG_FLOAT32] = unpack_RG_FLOAT32; + table[MESA_FORMAT_RG_FLOAT16] = unpack_RG_FLOAT16; + + table[MESA_FORMAT_RGBA_INT8] = unpack_RGBA_INT8; + table[MESA_FORMAT_RGBA_INT16] = unpack_RGBA_INT16; + table[MESA_FORMAT_RGBA_INT32] = unpack_RGBA_INT32; + table[MESA_FORMAT_RGBA_UINT8] = unpack_RGBA_UINT8; + table[MESA_FORMAT_RGBA_UINT16] = unpack_RGBA_UINT16; + table[MESA_FORMAT_RGBA_UINT32] = unpack_RGBA_UINT32; + + table[MESA_FORMAT_DUDV8] = unpack_DUDV8; + table[MESA_FORMAT_SIGNED_R8] = unpack_SIGNED_R8; + table[MESA_FORMAT_SIGNED_RG88_REV] = unpack_SIGNED_RG88_REV; + table[MESA_FORMAT_SIGNED_RGBX8888] = unpack_SIGNED_RGBX8888; + table[MESA_FORMAT_SIGNED_RGBA8888] = unpack_SIGNED_RGBA8888; + table[MESA_FORMAT_SIGNED_RGBA8888_REV] = unpack_SIGNED_RGBA8888_REV; + table[MESA_FORMAT_SIGNED_R16] = unpack_SIGNED_R16; + table[MESA_FORMAT_SIGNED_GR1616] = unpack_SIGNED_GR1616; + table[MESA_FORMAT_SIGNED_RGB_16] = unpack_SIGNED_RGB_16; + table[MESA_FORMAT_SIGNED_RGBA_16] = unpack_SIGNED_RGBA_16; + table[MESA_FORMAT_RGBA_16] = unpack_RGBA_16; + + table[MESA_FORMAT_RED_RGTC1] = unpack_RED_RGTC1; + table[MESA_FORMAT_SIGNED_RED_RGTC1] = unpack_SIGNED_RED_RGTC1; + table[MESA_FORMAT_RG_RGTC2] = unpack_RG_RGTC2; + table[MESA_FORMAT_SIGNED_RG_RGTC2] = unpack_SIGNED_RG_RGTC2; + + table[MESA_FORMAT_L_LATC1] = unpack_L_LATC1; + table[MESA_FORMAT_SIGNED_L_LATC1] = unpack_SIGNED_L_LATC1; + table[MESA_FORMAT_LA_LATC2] = unpack_LA_LATC2; + table[MESA_FORMAT_SIGNED_LA_LATC2] = unpack_SIGNED_LA_LATC2; + + table[MESA_FORMAT_SIGNED_A8] = unpack_SIGNED_A8; + table[MESA_FORMAT_SIGNED_L8] = unpack_SIGNED_L8; + table[MESA_FORMAT_SIGNED_AL88] = unpack_SIGNED_AL88; + table[MESA_FORMAT_SIGNED_I8] = unpack_SIGNED_I8; + table[MESA_FORMAT_SIGNED_A16] = unpack_SIGNED_A16; + table[MESA_FORMAT_SIGNED_L16] = unpack_SIGNED_L16; + table[MESA_FORMAT_SIGNED_AL1616] = unpack_SIGNED_AL1616; + table[MESA_FORMAT_SIGNED_I16] = unpack_SIGNED_I16; + + table[MESA_FORMAT_RGB9_E5_FLOAT] = unpack_RGB9_E5_FLOAT; + table[MESA_FORMAT_R11_G11_B10_FLOAT] = unpack_R11_G11_B10_FLOAT; + + table[MESA_FORMAT_Z32_FLOAT] = unpack_Z32_FLOAT; + table[MESA_FORMAT_Z32_FLOAT_X24S8] = unpack_Z32_FLOAT_X24S8; + + initialized = GL_TRUE; + } + + return table[format]; +} + + +void +_mesa_unpack_rgba_row(gl_format format, GLuint n, + const void *src, GLfloat dst[][4]) +{ + unpack_rgba_func unpack = get_unpack_rgba_function(format); + GLuint srcStride = _mesa_get_format_bytes(format); + const GLubyte *srcPtr = (GLubyte *) src; + GLuint i; + + for (i = 0; i < n; i++) { + unpack(srcPtr, dst[i]); + srcPtr += srcStride; + } +} + + + +/** + * Unpack a 2D rect of pixels returning float RGBA colors. + * \param format the source image format + * \param src start address of the source image + * \param srcRowStride source image row stride in bytes + * \param dst start address of the dest image + * \param dstRowStride dest image row stride in bytes + * \param x source image start X pos + * \param y source image start Y pos + * \param width width of rect region to convert + * \param height height of rect region to convert + */ +void +_mesa_unpack_rgba_block(gl_format format, + const void *src, GLint srcRowStride, + GLfloat dst[][4], GLint dstRowStride, + GLuint x, GLuint y, GLuint width, GLuint height) +{ + unpack_rgba_func unpack = get_unpack_rgba_function(format); + const GLuint srcPixStride = _mesa_get_format_bytes(format); + const GLuint dstPixStride = 4 * sizeof(GLfloat); + const GLubyte *srcRow, *srcPix; + GLubyte *dstRow; + GLfloat *dstPix; + GLuint i, j; + + /* XXX needs to be fixed for compressed formats */ + + srcRow = ((const GLubyte *) src) + srcRowStride * y + srcPixStride * x; + dstRow = ((GLubyte *) dst) + dstRowStride * y + dstPixStride * x; + + for (i = 0; i < height; i++) { + srcPix = srcRow; + dstPix = (GLfloat *) dstRow; + + for (j = 0; j < width; j++) { + unpack(srcPix, dstPix); + srcPix += srcPixStride; + dstPix += dstPixStride; + } + + dstRow += dstRowStride; + srcRow += srcRowStride; + } +} + + + + +typedef void (*unpack_float_z_func)(const void *src, GLfloat *dst); + +static void +unpack_float_z_Z24_S8(const void *src, GLfloat *dst) +{ + /* only return Z, not stencil data */ + const GLuint s = *((const GLuint *) src); + const GLfloat scale = 1.0F / (GLfloat) 0xffffff; + *dst = (s >> 8) * scale; + ASSERT(*dst >= 0.0F); + ASSERT(*dst <= 1.0F); +} + +static void +unpack_float_z_S8_Z24(const void *src, GLfloat *dst) +{ + /* only return Z, not stencil data */ + const GLuint s = *((const GLuint *) src); + const GLfloat scale = 1.0F / (GLfloat) 0xffffff; + *dst = (s & 0x00ffffff) * scale; + ASSERT(*dst >= 0.0F); + ASSERT(*dst <= 1.0F); +} + +static void +unpack_float_z_Z16(const void *src, GLfloat *dst) +{ + const GLushort s = *((const GLushort *) src); + *dst = s * (1.0F / 65535.0F); +} + +static void +unpack_float_z_X8_Z24(const void *src, GLfloat *dst) +{ + unpack_float_z_S8_Z24(src, dst); +} + +static void +unpack_float_z_Z24_X8(const void *src, GLfloat *dst) +{ + unpack_float_z_Z24_S8(src, dst); +} + +static void +unpack_float_z_Z32(const void *src, GLfloat *dst) +{ + const GLuint s = *((const GLuint *) src); + *dst = s * (1.0F / 0xffffffff); +} + +static void +unpack_float_z_Z32X24S8(const void *src, GLfloat *dst) +{ + *dst = *((const GLfloat *) src); +} + + + +void +_mesa_unpack_float_z_row(gl_format format, GLuint n, + const void *src, GLfloat *dst) +{ + unpack_float_z_func unpack; + GLuint srcStride = _mesa_get_format_bytes(format); + const GLubyte *srcPtr = (GLubyte *) src; + GLuint i; + + switch (format) { + case MESA_FORMAT_Z24_S8: + unpack = unpack_float_z_Z24_S8; + break; + case MESA_FORMAT_S8_Z24: + unpack = unpack_float_z_S8_Z24; + break; + case MESA_FORMAT_Z16: + unpack = unpack_float_z_Z16; + break; + case MESA_FORMAT_X8_Z24: + unpack = unpack_float_z_X8_Z24; + break; + case MESA_FORMAT_Z24_X8: + unpack = unpack_float_z_Z24_X8; + break; + case MESA_FORMAT_Z32: + unpack = unpack_float_z_Z32; + break; + case MESA_FORMAT_Z32_FLOAT_X24S8: + unpack = unpack_float_z_Z32X24S8; + break; + default: + _mesa_problem(NULL, "bad format %s in _mesa_unpack_float_z_row", + _mesa_get_format_name(format)); + return; + } + + for (i = 0; i < n; i++) { + unpack(srcPtr, &dst[i]); + srcPtr += srcStride; + } +} + + + +typedef void (*unpack_uint_z_func)(const void *src, GLuint *dst); + +static void +unpack_uint_z_Z24_S8(const void *src, GLuint *dst) +{ + /* only return Z, not stencil data */ + const GLuint s = *((const GLuint *) src); + *dst = (s >> 8); +} + +static void +unpack_uint_z_S8_Z24(const void *src, GLuint *dst) +{ + /* only return Z, not stencil data */ + const GLuint s = *((const GLuint *) src); + *dst = s & 0x00ffffff; +} + +static void +unpack_uint_z_Z16(const void *src, GLuint *dst) +{ + *dst = *((const GLushort *) src); +} + +static void +unpack_uint_z_X8_Z24(const void *src, GLuint *dst) +{ + unpack_uint_z_S8_Z24(src, dst); +} + +static void +unpack_uint_z_Z24_X8(const void *src, GLuint *dst) +{ + unpack_uint_z_Z24_S8(src, dst); +} + +static void +unpack_uint_z_Z32(const void *src, GLuint *dst) +{ + *dst = *((const GLuint *) src); +} + + +void +_mesa_unpack_uint_z_row(gl_format format, GLuint n, + const void *src, GLuint *dst) +{ + unpack_uint_z_func unpack; + GLuint srcStride = _mesa_get_format_bytes(format); + const GLubyte *srcPtr = (GLubyte *) src; + GLuint i; + + switch (format) { + case MESA_FORMAT_Z24_S8: + unpack = unpack_uint_z_Z24_S8; + break; + case MESA_FORMAT_S8_Z24: + unpack = unpack_uint_z_S8_Z24; + break; + case MESA_FORMAT_Z16: + unpack = unpack_uint_z_Z16; + break; + case MESA_FORMAT_X8_Z24: + unpack = unpack_uint_z_X8_Z24; + break; + case MESA_FORMAT_Z24_X8: + unpack = unpack_uint_z_Z24_X8; + break; + case MESA_FORMAT_Z32: + unpack = unpack_uint_z_Z32; + break; + default: + _mesa_problem(NULL, "bad format %s in _mesa_unpack_uint_z_row", + _mesa_get_format_name(format)); + return; + } + + for (i = 0; i < n; i++) { + unpack(srcPtr, &dst[i]); + srcPtr += srcStride; + } +} + + |