/* * 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]) { const GLuint s = *((const GLuint *) src); dst[RCOMP] = SHORT_TO_FLOAT_TEX( s & 0xffff ); dst[GCOMP] = SHORT_TO_FLOAT_TEX( s >> 16 ); dst[BCOMP] = 0.0F; dst[ACOMP] = 1.0F; } 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 GLushort *s = (const GLushort *) 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; } }