/* * 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 OR COPYRIGHT HOLDERS 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. */ /** * Color, depth, stencil packing functions. * Used to pack basic color, depth and stencil formats to specific * hardware formats. * * There are both per-pixel and per-row packing functions: * - The former will be used by swrast to write values to the color, depth, * stencil buffers when drawing points, lines and masked spans. * - The later will be used for image-oriented functions like glDrawPixels, * glAccum, and glTexImage. */ #include "colormac.h" #include "format_pack.h" #include "macros.h" #include "../../gallium/auxiliary/util/u_format_rgb9e5.h" #include "../../gallium/auxiliary/util/u_format_r11g11b10f.h" /** Helper struct for MESA_FORMAT_Z32_FLOAT_X24S8 */ struct z32f_x24s8 { float z; uint32_t x24s8; }; typedef void (*pack_ubyte_rgba_row_func)(GLuint n, const GLubyte src[][4], void *dst); typedef void (*pack_float_rgba_row_func)(GLuint n, const GLfloat src[][4], void *dst); static inline GLfloat linear_to_srgb(GLfloat cl) { if (cl < 0.0f) return 0.0f; else if (cl < 0.0031308f) return 12.92f * cl; else if (cl < 1.0f) return 1.055f * powf(cl, 0.41666f) - 0.055f; else return 1.0f; } static inline GLubyte linear_float_to_srgb_ubyte(GLfloat cl) { GLubyte res = FLOAT_TO_UBYTE(linear_to_srgb(cl)); return res; } static inline GLubyte linear_ubyte_to_srgb_ubyte(GLubyte cl) { GLubyte res = FLOAT_TO_UBYTE(linear_to_srgb(cl / 255.0f)); return res; } /* * MESA_FORMAT_RGBA8888 */ static void pack_ubyte_RGBA8888(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); *d = PACK_COLOR_8888(src[RCOMP], src[GCOMP], src[BCOMP], src[ACOMP]); } static void pack_float_RGBA8888(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_RGBA8888(v, dst); } static void pack_row_ubyte_RGBA8888(GLuint n, const GLubyte src[][4], void *dst) { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { d[i] = PACK_COLOR_8888(src[i][RCOMP], src[i][GCOMP], src[i][BCOMP], src[i][ACOMP]); } } static void pack_row_float_RGBA8888(GLuint n, const GLfloat src[][4], void *dst) { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src[i]); pack_ubyte_RGBA8888(v, d + i); } } /* * MESA_FORMAT_RGBA8888_REV */ static void pack_ubyte_RGBA8888_REV(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); *d = PACK_COLOR_8888(src[ACOMP], src[BCOMP], src[GCOMP], src[RCOMP]); } static void pack_float_RGBA8888_REV(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_RGBA8888_REV(v, dst); } static void pack_row_ubyte_RGBA8888_REV(GLuint n, const GLubyte src[][4], void *dst) { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { d[i] = PACK_COLOR_8888(src[i][ACOMP], src[i][BCOMP], src[i][GCOMP], src[i][RCOMP]); } } static void pack_row_float_RGBA8888_REV(GLuint n, const GLfloat src[][4], void *dst) { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src[i]); pack_ubyte_RGBA8888_REV(v, d + i); } } /* * MESA_FORMAT_ARGB8888 */ static void pack_ubyte_ARGB8888(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); *d = PACK_COLOR_8888(src[ACOMP], src[RCOMP], src[GCOMP], src[BCOMP]); } static void pack_float_ARGB8888(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_ARGB8888(v, dst); } static void pack_row_ubyte_ARGB8888(GLuint n, const GLubyte src[][4], void *dst) { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { d[i] = PACK_COLOR_8888(src[i][ACOMP], src[i][RCOMP], src[i][GCOMP], src[i][BCOMP]); } } static void pack_row_float_ARGB8888(GLuint n, const GLfloat src[][4], void *dst) { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src[i]); pack_ubyte_ARGB8888(v, d + i); } } /* * MESA_FORMAT_ARGB8888_REV */ static void pack_ubyte_ARGB8888_REV(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); *d = PACK_COLOR_8888(src[BCOMP], src[GCOMP], src[RCOMP], src[ACOMP]); } static void pack_float_ARGB8888_REV(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_ARGB8888_REV(v, dst); } static void pack_row_ubyte_ARGB8888_REV(GLuint n, const GLubyte src[][4], void *dst) { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { d[i] = PACK_COLOR_8888(src[i][BCOMP], src[i][GCOMP], src[i][RCOMP], src[i][ACOMP]); } } static void pack_row_float_ARGB8888_REV(GLuint n, const GLfloat src[][4], void *dst) { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src[i]); pack_ubyte_ARGB8888_REV(v, d + i); } } /* * MESA_FORMAT_XRGB8888 */ static void pack_ubyte_XRGB8888(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); *d = PACK_COLOR_8888(0x0, src[RCOMP], src[GCOMP], src[BCOMP]); } static void pack_float_XRGB8888(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_XRGB8888(v, dst); } static void pack_row_ubyte_XRGB8888(GLuint n, const GLubyte src[][4], void *dst) { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { d[i] = PACK_COLOR_8888(0, src[i][RCOMP], src[i][GCOMP], src[i][BCOMP]); } } static void pack_row_float_XRGB8888(GLuint n, const GLfloat src[][4], void *dst) { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src[i]); pack_ubyte_XRGB8888(v, d + i); } } /* * MESA_FORMAT_XRGB8888_REV */ static void pack_ubyte_XRGB8888_REV(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); *d = PACK_COLOR_8888(src[BCOMP], src[GCOMP], src[RCOMP], 0); } static void pack_float_XRGB8888_REV(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_XRGB8888_REV(v, dst); } static void pack_row_ubyte_XRGB8888_REV(GLuint n, const GLubyte src[][4], void *dst) { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { d[i] = PACK_COLOR_8888(src[i][BCOMP], src[i][GCOMP], src[i][RCOMP], 0); } } static void pack_row_float_XRGB8888_REV(GLuint n, const GLfloat src[][4], void *dst) { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src[i]); pack_ubyte_XRGB8888_REV(v, d + i); } } /* * MESA_FORMAT_RGB888 */ static void pack_ubyte_RGB888(const GLubyte src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); d[2] = src[RCOMP]; d[1] = src[GCOMP]; d[0] = src[BCOMP]; } static void pack_float_RGB888(const GLfloat src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); UNCLAMPED_FLOAT_TO_UBYTE(d[2], src[RCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(d[1], src[GCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(d[0], src[BCOMP]); } static void pack_row_ubyte_RGB888(GLuint n, const GLubyte src[][4], void *dst) { GLubyte *d = ((GLubyte *) dst); GLuint i; for (i = 0; i < n; i++) { d[i*3+2] = src[i][RCOMP]; d[i*3+1] = src[i][GCOMP]; d[i*3+0] = src[i][BCOMP]; } } static void pack_row_float_RGB888(GLuint n, const GLfloat src[][4], void *dst) { GLubyte *d = ((GLubyte *) dst); GLuint i; for (i = 0; i < n; i++) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src[i]); d[i*3+2] = v[RCOMP]; d[i*3+1] = v[GCOMP]; d[i*3+0] = v[BCOMP]; } } /* * MESA_FORMAT_BGR888 */ static void pack_ubyte_BGR888(const GLubyte src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); d[2] = src[BCOMP]; d[1] = src[GCOMP]; d[0] = src[RCOMP]; } static void pack_float_BGR888(const GLfloat src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); UNCLAMPED_FLOAT_TO_UBYTE(d[2], src[BCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(d[1], src[GCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(d[0], src[RCOMP]); } static void pack_row_ubyte_BGR888(GLuint n, const GLubyte src[][4], void *dst) { GLubyte *d = ((GLubyte *) dst); GLuint i; for (i = 0; i < n; i++) { d[i*3+2] = src[i][BCOMP]; d[i*3+1] = src[i][GCOMP]; d[i*3+0] = src[i][RCOMP]; } } static void pack_row_float_BGR888(GLuint n, const GLfloat src[][4], void *dst) { GLubyte *d = ((GLubyte *) dst); GLuint i; for (i = 0; i < n; i++) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src[i]); d[i*3+2] = v[BCOMP]; d[i*3+1] = v[GCOMP]; d[i*3+0] = v[RCOMP]; } } /* * MESA_FORMAT_RGB565 */ static void pack_ubyte_RGB565(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = PACK_COLOR_565(src[RCOMP], src[GCOMP], src[BCOMP]); } static void pack_float_RGB565(const GLfloat src[4], void *dst) { GLubyte v[3]; UNCLAMPED_FLOAT_TO_UBYTE(v[0], src[RCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(v[1], src[GCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(v[2], src[BCOMP]); pack_ubyte_RGB565(v, dst); } static void pack_row_ubyte_RGB565(GLuint n, const GLubyte src[][4], void *dst) { GLushort *d = ((GLushort *) dst); GLuint i; for (i = 0; i < n; i++) { pack_ubyte_RGB565(src[i], d + i); } } static void pack_row_float_RGB565(GLuint n, const GLfloat src[][4], void *dst) { GLushort *d = ((GLushort *) dst); GLuint i; for (i = 0; i < n; i++) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src[i]); pack_ubyte_RGB565(v, d + i); } } /* * MESA_FORMAT_RGB565_REV */ static void pack_ubyte_RGB565_REV(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = PACK_COLOR_565_REV(src[RCOMP], src[GCOMP], src[BCOMP]); } static void pack_float_RGB565_REV(const GLfloat src[4], void *dst) { GLushort *d = ((GLushort *) dst); GLubyte r, g, b; UNCLAMPED_FLOAT_TO_UBYTE(r, src[RCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(g, src[GCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(b, src[BCOMP]); *d = PACK_COLOR_565_REV(r, g, b); } static void pack_row_ubyte_RGB565_REV(GLuint n, const GLubyte src[][4], void *dst) { GLushort *d = ((GLushort *) dst); GLuint i; for (i = 0; i < n; i++) { pack_ubyte_RGB565_REV(src[i], d + i); } } static void pack_row_float_RGB565_REV(GLuint n, const GLfloat src[][4], void *dst) { GLushort *d = ((GLushort *) dst); GLuint i; for (i = 0; i < n; i++) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src[i]); pack_ubyte_RGB565_REV(v, d + i); } } /* * MESA_FORMAT_ARGB4444 */ static void pack_ubyte_ARGB4444(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = PACK_COLOR_4444(src[ACOMP], src[RCOMP], src[GCOMP], src[BCOMP]); } static void pack_float_ARGB4444(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_ARGB4444(v, dst); } /* use fallback row packing functions */ /* * MESA_FORMAT_ARGB4444_REV */ static void pack_ubyte_ARGB4444_REV(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = PACK_COLOR_4444(src[GCOMP], src[BCOMP], src[ACOMP], src[RCOMP]); } static void pack_float_ARGB4444_REV(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_ARGB4444_REV(v, dst); } /* use fallback row packing functions */ /* * MESA_FORMAT_RGBA5551 */ static void pack_ubyte_RGBA5551(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = PACK_COLOR_5551(src[RCOMP], src[GCOMP], src[BCOMP], src[ACOMP]); } static void pack_float_RGBA5551(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_RGBA5551(v, dst); } /* use fallback row packing functions */ /* * MESA_FORMAT_ARGB1555 */ static void pack_ubyte_ARGB1555(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = PACK_COLOR_1555(src[ACOMP], src[RCOMP], src[GCOMP], src[BCOMP]); } static void pack_float_ARGB1555(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_ARGB1555(v, dst); } /* MESA_FORMAT_ARGB1555_REV */ static void pack_ubyte_ARGB1555_REV(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst), tmp; tmp = PACK_COLOR_1555(src[ACOMP], src[RCOMP], src[GCOMP], src[BCOMP]); *d = (tmp >> 8) | (tmp << 8); } static void pack_float_ARGB1555_REV(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_ARGB1555_REV(v, dst); } /* MESA_FORMAT_AL44 */ static void pack_ubyte_AL44(const GLubyte src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); *d = PACK_COLOR_44(src[ACOMP], src[RCOMP]); } static void pack_float_AL44(const GLfloat src[4], void *dst) { GLubyte v[4]; UNCLAMPED_FLOAT_TO_UBYTE(v[0], src[RCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(v[3], src[ACOMP]); pack_ubyte_AL44(v, dst); } /* MESA_FORMAT_AL88 */ static void pack_ubyte_AL88(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = PACK_COLOR_88(src[ACOMP], src[RCOMP]); } static void pack_float_AL88(const GLfloat src[4], void *dst) { GLubyte v[4]; UNCLAMPED_FLOAT_TO_UBYTE(v[0], src[RCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(v[3], src[ACOMP]); pack_ubyte_AL88(v, dst); } /* MESA_FORMAT_AL88_REV */ static void pack_ubyte_AL88_REV(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = PACK_COLOR_88(src[RCOMP], src[ACOMP]); } static void pack_float_AL88_REV(const GLfloat src[4], void *dst) { GLubyte v[4]; UNCLAMPED_FLOAT_TO_UBYTE(v[0], src[RCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(v[3], src[ACOMP]); pack_ubyte_AL88_REV(v, dst); } /* MESA_FORMAT_AL1616 */ static void pack_ubyte_AL1616(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort l = UBYTE_TO_USHORT(src[RCOMP]); GLushort a = UBYTE_TO_USHORT(src[ACOMP]); *d = PACK_COLOR_1616(a, l); } static void pack_float_AL1616(const GLfloat src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort l, a; UNCLAMPED_FLOAT_TO_USHORT(l, src[RCOMP]); UNCLAMPED_FLOAT_TO_USHORT(a, src[ACOMP]); *d = PACK_COLOR_1616(a, l); } /* MESA_FORMAT_AL1616_REV */ static void pack_ubyte_AL1616_REV(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort l = UBYTE_TO_USHORT(src[RCOMP]); GLushort a = UBYTE_TO_USHORT(src[ACOMP]); *d = PACK_COLOR_1616(l, a); } static void pack_float_AL1616_REV(const GLfloat src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort l, a; UNCLAMPED_FLOAT_TO_USHORT(l, src[RCOMP]); UNCLAMPED_FLOAT_TO_USHORT(a, src[ACOMP]); *d = PACK_COLOR_1616(l, a); } /* MESA_FORMAT_RGB332 */ static void pack_ubyte_RGB332(const GLubyte src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); *d = PACK_COLOR_332(src[RCOMP], src[GCOMP], src[BCOMP]); } static void pack_float_RGB332(const GLfloat src[4], void *dst) { GLubyte v[4]; UNCLAMPED_FLOAT_TO_UBYTE(v[0], src[RCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(v[1], src[GCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(v[2], src[BCOMP]); pack_ubyte_RGB332(v, dst); } /* MESA_FORMAT_A8 */ static void pack_ubyte_A8(const GLubyte src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); *d = src[ACOMP]; } static void pack_float_A8(const GLfloat src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); UNCLAMPED_FLOAT_TO_UBYTE(d[0], src[ACOMP]); } /* MESA_FORMAT_A16 */ static void pack_ubyte_A16(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = UBYTE_TO_USHORT(src[ACOMP]); } static void pack_float_A16(const GLfloat src[4], void *dst) { GLushort *d = ((GLushort *) dst); UNCLAMPED_FLOAT_TO_USHORT(d[0], src[ACOMP]); } /* MESA_FORMAT_L8 */ static void pack_ubyte_L8(const GLubyte src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); *d = src[RCOMP]; } static void pack_float_L8(const GLfloat src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); UNCLAMPED_FLOAT_TO_UBYTE(d[0], src[RCOMP]); } /* MESA_FORMAT_L16 */ static void pack_ubyte_L16(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = UBYTE_TO_USHORT(src[RCOMP]); } static void pack_float_L16(const GLfloat src[4], void *dst) { GLushort *d = ((GLushort *) dst); UNCLAMPED_FLOAT_TO_USHORT(d[0], src[RCOMP]); } /* MESA_FORMAT_YCBCR */ static void pack_ubyte_YCBCR(const GLubyte src[4], void *dst) { /* todo */ } static void pack_float_YCBCR(const GLfloat src[4], void *dst) { /* todo */ } /* MESA_FORMAT_YCBCR_REV */ static void pack_ubyte_YCBCR_REV(const GLubyte src[4], void *dst) { /* todo */ } static void pack_float_YCBCR_REV(const GLfloat src[4], void *dst) { /* todo */ } /* MESA_FORMAT_R8 */ static void pack_ubyte_R8(const GLubyte src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); *d = src[RCOMP]; } static void pack_float_R8(const GLfloat src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); GLubyte r; UNCLAMPED_FLOAT_TO_UBYTE(r, src[RCOMP]); d[0] = r; } /* MESA_FORMAT_GR88 */ static void pack_ubyte_GR88(const GLubyte src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); *d = PACK_COLOR_88(src[GCOMP], src[RCOMP]); } static void pack_float_GR88(const GLfloat src[4], void *dst) { GLushort *d = ((GLushort *) dst); GLubyte r, g; UNCLAMPED_FLOAT_TO_UBYTE(r, src[RCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(g, src[GCOMP]); *d = PACK_COLOR_88(g, r); } /* MESA_FORMAT_RG88 */ static void pack_ubyte_RG88(const GLubyte src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); *d = PACK_COLOR_88(src[RCOMP], src[GCOMP]); } static void pack_float_RG88(const GLfloat src[4], void *dst) { GLushort *d = ((GLushort *) dst); GLubyte r, g; UNCLAMPED_FLOAT_TO_UBYTE(r, src[RCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(g, src[GCOMP]); *d = PACK_COLOR_88(r, g); } /* MESA_FORMAT_R16 */ static void pack_ubyte_R16(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = UBYTE_TO_USHORT(src[RCOMP]); } static void pack_float_R16(const GLfloat src[4], void *dst) { GLushort *d = ((GLushort *) dst); UNCLAMPED_FLOAT_TO_USHORT(d[0], src[RCOMP]); } /* MESA_FORMAT_GR1616 */ static void pack_ubyte_GR1616(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort r = UBYTE_TO_USHORT(src[RCOMP]); GLushort g = UBYTE_TO_USHORT(src[GCOMP]); *d = PACK_COLOR_1616(g, r); } static void pack_float_GR1616(const GLfloat src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort r, g; UNCLAMPED_FLOAT_TO_USHORT(r, src[RCOMP]); UNCLAMPED_FLOAT_TO_USHORT(g, src[GCOMP]); *d = PACK_COLOR_1616(g, r); } /* MESA_FORMAT_RG1616 */ static void pack_ubyte_RG1616(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort r = UBYTE_TO_USHORT(src[RCOMP]); GLushort g = UBYTE_TO_USHORT(src[GCOMP]); *d = PACK_COLOR_1616(r, g); } static void pack_float_RG1616(const GLfloat src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort r, g; UNCLAMPED_FLOAT_TO_USHORT(r, src[RCOMP]); UNCLAMPED_FLOAT_TO_USHORT(g, src[GCOMP]); *d = PACK_COLOR_1616(r, g); } /* MESA_FORMAT_ARGB2101010 */ static void pack_ubyte_ARGB2101010(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort r = UBYTE_TO_USHORT(src[RCOMP]); GLushort g = UBYTE_TO_USHORT(src[GCOMP]); GLushort b = UBYTE_TO_USHORT(src[BCOMP]); GLushort a = UBYTE_TO_USHORT(src[ACOMP]); *d = PACK_COLOR_2101010_US(a, r, g, b); } static void pack_float_ARGB2101010(const GLfloat src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort r, g, b, a; UNCLAMPED_FLOAT_TO_USHORT(r, src[RCOMP]); UNCLAMPED_FLOAT_TO_USHORT(g, src[GCOMP]); UNCLAMPED_FLOAT_TO_USHORT(b, src[BCOMP]); UNCLAMPED_FLOAT_TO_USHORT(a, src[ACOMP]); *d = PACK_COLOR_2101010_US(a, r, g, b); } /* MESA_FORMAT_ABGR2101010_UINT */ static void pack_ubyte_ABGR2101010_UINT(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort r = UBYTE_TO_USHORT(src[RCOMP]); GLushort g = UBYTE_TO_USHORT(src[GCOMP]); GLushort b = UBYTE_TO_USHORT(src[BCOMP]); GLushort a = UBYTE_TO_USHORT(src[ACOMP]); *d = PACK_COLOR_2101010_US(a, b, g, r); } static void pack_float_ABGR2101010_UINT(const GLfloat src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort r, g, b, a; UNCLAMPED_FLOAT_TO_USHORT(r, src[RCOMP]); UNCLAMPED_FLOAT_TO_USHORT(g, src[GCOMP]); UNCLAMPED_FLOAT_TO_USHORT(b, src[BCOMP]); UNCLAMPED_FLOAT_TO_USHORT(a, src[ACOMP]); *d = PACK_COLOR_2101010_US(a, b, g, r); } /* MESA_FORMAT_SRGB8 */ static void pack_ubyte_SRGB8(const GLubyte src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); d[2] = linear_ubyte_to_srgb_ubyte(src[RCOMP]); d[1] = linear_ubyte_to_srgb_ubyte(src[RCOMP]); d[0] = linear_ubyte_to_srgb_ubyte(src[RCOMP]); } static void pack_float_SRGB8(const GLfloat src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); d[2] = linear_float_to_srgb_ubyte(src[RCOMP]); d[1] = linear_float_to_srgb_ubyte(src[GCOMP]); d[0] = linear_float_to_srgb_ubyte(src[BCOMP]); } /* MESA_FORMAT_SRGBA8 */ static void pack_ubyte_SRGBA8(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLubyte r = linear_ubyte_to_srgb_ubyte(src[RCOMP]); GLubyte g = linear_ubyte_to_srgb_ubyte(src[GCOMP]); GLubyte b = linear_ubyte_to_srgb_ubyte(src[BCOMP]); *d = PACK_COLOR_8888(r, g, b, src[ACOMP]); } static void pack_float_SRGBA8(const GLfloat src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLubyte r, g, b, a; r = linear_float_to_srgb_ubyte(src[RCOMP]); g = linear_float_to_srgb_ubyte(src[GCOMP]); b = linear_float_to_srgb_ubyte(src[BCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(a, src[ACOMP]); *d = PACK_COLOR_8888(r, g, b, a); } /* MESA_FORMAT_SARGB8 */ static void pack_ubyte_SARGB8(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLubyte r = linear_ubyte_to_srgb_ubyte(src[RCOMP]); GLubyte g = linear_ubyte_to_srgb_ubyte(src[RCOMP]); GLubyte b = linear_ubyte_to_srgb_ubyte(src[RCOMP]); *d = PACK_COLOR_8888(src[ACOMP], r, g, b); } static void pack_float_SARGB8(const GLfloat src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLubyte r, g, b, a; r = linear_float_to_srgb_ubyte(src[RCOMP]); g = linear_float_to_srgb_ubyte(src[GCOMP]); b = linear_float_to_srgb_ubyte(src[BCOMP]); UNCLAMPED_FLOAT_TO_UBYTE(a, src[ACOMP]); *d = PACK_COLOR_8888(a, r, g, b); } /* MESA_FORMAT_SL8 */ static void pack_ubyte_SL8(const GLubyte src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); *d = linear_ubyte_to_srgb_ubyte(src[RCOMP]); } static void pack_float_SL8(const GLfloat src[4], void *dst) { GLubyte *d = ((GLubyte *) dst); GLubyte l = linear_float_to_srgb_ubyte(src[RCOMP]); *d = l; } /* MESA_FORMAT_SLA8 */ static void pack_ubyte_SLA8(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); GLubyte l = linear_ubyte_to_srgb_ubyte(src[RCOMP]); *d = PACK_COLOR_88(src[ACOMP], l); } static void pack_float_SLA8(const GLfloat src[4], void *dst) { GLushort *d = ((GLushort *) dst); GLubyte a, l = linear_float_to_srgb_ubyte(src[RCOMP]); CLAMPED_FLOAT_TO_UBYTE(a, src[ACOMP]); *d = PACK_COLOR_88(a, l); } /* MESA_FORMAT_RGBA_FLOAT32 */ static void pack_ubyte_RGBA_FLOAT32(const GLubyte src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = UBYTE_TO_FLOAT(src[0]); d[1] = UBYTE_TO_FLOAT(src[1]); d[2] = UBYTE_TO_FLOAT(src[2]); d[3] = UBYTE_TO_FLOAT(src[3]); } static void pack_float_RGBA_FLOAT32(const GLfloat src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = src[0]; d[1] = src[1]; d[2] = src[2]; d[3] = src[3]; } /* MESA_FORMAT_RGBA_FLOAT16 */ static void pack_ubyte_RGBA_FLOAT16(const GLubyte src[4], void *dst) { GLhalfARB *d = ((GLhalfARB *) dst); d[0] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[0])); d[1] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[1])); d[2] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[2])); d[3] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[3])); } static void pack_float_RGBA_FLOAT16(const GLfloat src[4], void *dst) { GLhalfARB *d = ((GLhalfARB *) dst); d[0] = _mesa_float_to_half(src[0]); d[1] = _mesa_float_to_half(src[1]); d[2] = _mesa_float_to_half(src[2]); d[3] = _mesa_float_to_half(src[3]); } /* MESA_FORMAT_RGB_FLOAT32 */ static void pack_ubyte_RGB_FLOAT32(const GLubyte src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = UBYTE_TO_FLOAT(src[0]); d[1] = UBYTE_TO_FLOAT(src[1]); d[2] = UBYTE_TO_FLOAT(src[2]); } static void pack_float_RGB_FLOAT32(const GLfloat src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = src[0]; d[1] = src[1]; d[2] = src[2]; } /* MESA_FORMAT_RGB_FLOAT16 */ static void pack_ubyte_RGB_FLOAT16(const GLubyte src[4], void *dst) { GLhalfARB *d = ((GLhalfARB *) dst); d[0] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[0])); d[1] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[1])); d[2] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[2])); } static void pack_float_RGB_FLOAT16(const GLfloat src[4], void *dst) { GLhalfARB *d = ((GLhalfARB *) dst); d[0] = _mesa_float_to_half(src[0]); d[1] = _mesa_float_to_half(src[1]); d[2] = _mesa_float_to_half(src[2]); } /* MESA_FORMAT_ALPHA_FLOAT32 */ static void pack_ubyte_ALPHA_FLOAT32(const GLubyte src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = UBYTE_TO_FLOAT(src[ACOMP]); } static void pack_float_ALPHA_FLOAT32(const GLfloat src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = src[ACOMP]; } /* MESA_FORMAT_ALPHA_FLOAT16 */ static void pack_ubyte_ALPHA_FLOAT16(const GLubyte src[4], void *dst) { GLhalfARB *d = ((GLhalfARB *) dst); d[0] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[ACOMP])); } static void pack_float_ALPHA_FLOAT16(const GLfloat src[4], void *dst) { GLhalfARB *d = ((GLhalfARB *) dst); d[0] = _mesa_float_to_half(src[ACOMP]); } /* MESA_FORMAT_LUMINANCE_FLOAT32 (and INTENSITY_FLOAT32, R_FLOAT32) */ static void pack_ubyte_LUMINANCE_FLOAT32(const GLubyte src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = UBYTE_TO_FLOAT(src[RCOMP]); } static void pack_float_LUMINANCE_FLOAT32(const GLfloat src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = src[RCOMP]; } /* MESA_FORMAT_LUMINANCE_FLOAT16 (and INTENSITY_FLOAT16, R_FLOAT32) */ static void pack_ubyte_LUMINANCE_FLOAT16(const GLubyte src[4], void *dst) { GLhalfARB *d = ((GLhalfARB *) dst); d[0] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[RCOMP])); } static void pack_float_LUMINANCE_FLOAT16(const GLfloat src[4], void *dst) { GLhalfARB *d = ((GLhalfARB *) dst); d[0] = _mesa_float_to_half(src[RCOMP]); } /* MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32 */ static void pack_ubyte_LUMINANCE_ALPHA_FLOAT32(const GLubyte src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = UBYTE_TO_FLOAT(src[RCOMP]); d[1] = UBYTE_TO_FLOAT(src[ACOMP]); } static void pack_float_LUMINANCE_ALPHA_FLOAT32(const GLfloat src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = src[RCOMP]; d[1] = src[ACOMP]; } /* MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16 */ static void pack_ubyte_LUMINANCE_ALPHA_FLOAT16(const GLubyte src[4], void *dst) { GLhalfARB *d = ((GLhalfARB *) dst); d[0] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[RCOMP])); d[1] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[ACOMP])); } static void pack_float_LUMINANCE_ALPHA_FLOAT16(const GLfloat src[4], void *dst) { GLhalfARB *d = ((GLhalfARB *) dst); d[0] = _mesa_float_to_half(src[RCOMP]); d[1] = _mesa_float_to_half(src[ACOMP]); } /* MESA_FORMAT_RG_FLOAT32 */ static void pack_ubyte_RG_FLOAT32(const GLubyte src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = UBYTE_TO_FLOAT(src[RCOMP]); d[1] = UBYTE_TO_FLOAT(src[GCOMP]); } static void pack_float_RG_FLOAT32(const GLfloat src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = src[RCOMP]; d[1] = src[GCOMP]; } /* MESA_FORMAT_RG_FLOAT16 */ static void pack_ubyte_RG_FLOAT16(const GLubyte src[4], void *dst) { GLhalfARB *d = ((GLhalfARB *) dst); d[0] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[RCOMP])); d[1] = _mesa_float_to_half(UBYTE_TO_FLOAT(src[GCOMP])); } static void pack_float_RG_FLOAT16(const GLfloat src[4], void *dst) { GLhalfARB *d = ((GLhalfARB *) dst); d[0] = _mesa_float_to_half(src[RCOMP]); d[1] = _mesa_float_to_half(src[GCOMP]); } /* MESA_FORMAT_DUDV8 */ static void pack_ubyte_DUDV8(const GLubyte src[4], void *dst) { /* XXX is this ever used? */ GLushort *d = ((GLushort *) dst); *d = PACK_COLOR_88(src[0], src[1]); } static void pack_float_DUDV8(const GLfloat src[4], void *dst) { GLushort *d = ((GLushort *) dst); GLbyte du, dv; du = FLOAT_TO_BYTE(CLAMP(src[0], 0.0F, 1.0F)); dv = FLOAT_TO_BYTE(CLAMP(src[1], 0.0F, 1.0F)); *d = PACK_COLOR_88(du, dv); } /* MESA_FORMAT_RGBA_16 */ static void pack_ubyte_RGBA_16(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); d[0] = UBYTE_TO_USHORT(src[RCOMP]); d[1] = UBYTE_TO_USHORT(src[GCOMP]); d[2] = UBYTE_TO_USHORT(src[BCOMP]); d[3] = UBYTE_TO_USHORT(src[ACOMP]); } static void pack_float_RGBA_16(const GLfloat src[4], void *dst) { GLushort *d = ((GLushort *) dst); UNCLAMPED_FLOAT_TO_USHORT(d[0], src[RCOMP]); UNCLAMPED_FLOAT_TO_USHORT(d[1], src[GCOMP]); UNCLAMPED_FLOAT_TO_USHORT(d[2], src[BCOMP]); UNCLAMPED_FLOAT_TO_USHORT(d[3], src[ACOMP]); } /* * MESA_FORMAT_SIGNED_R8 */ static void pack_float_SIGNED_R8(const GLfloat src[4], void *dst) { GLbyte *d = (GLbyte *) dst; *d = FLOAT_TO_BYTE(CLAMP(src[RCOMP], -1.0f, 1.0f)); } /* * MESA_FORMAT_SIGNED_RG88_REV */ static void pack_float_SIGNED_RG88_REV(const GLfloat src[4], void *dst) { GLushort *d = (GLushort *) dst; GLbyte r = FLOAT_TO_BYTE(CLAMP(src[RCOMP], -1.0f, 1.0f)); GLbyte g = FLOAT_TO_BYTE(CLAMP(src[GCOMP], -1.0f, 1.0f)); *d = (g << 8) | r; } /* * MESA_FORMAT_SIGNED_RGBX8888 */ static void pack_float_SIGNED_RGBX8888(const GLfloat src[4], void *dst) { GLuint *d = (GLuint *) dst; GLbyte r = FLOAT_TO_BYTE(CLAMP(src[RCOMP], -1.0f, 1.0f)); GLbyte g = FLOAT_TO_BYTE(CLAMP(src[GCOMP], -1.0f, 1.0f)); GLbyte b = FLOAT_TO_BYTE(CLAMP(src[BCOMP], -1.0f, 1.0f)); GLbyte a = 127; *d = PACK_COLOR_8888(r, g, b, a); } /* * MESA_FORMAT_SIGNED_RGBA8888 */ static void pack_float_SIGNED_RGBA8888(const GLfloat src[4], void *dst) { GLuint *d = (GLuint *) dst; GLbyte r = FLOAT_TO_BYTE(CLAMP(src[RCOMP], -1.0f, 1.0f)); GLbyte g = FLOAT_TO_BYTE(CLAMP(src[GCOMP], -1.0f, 1.0f)); GLbyte b = FLOAT_TO_BYTE(CLAMP(src[BCOMP], -1.0f, 1.0f)); GLbyte a = FLOAT_TO_BYTE(CLAMP(src[ACOMP], -1.0f, 1.0f)); *d = PACK_COLOR_8888(r, g, b, a); } /* * MESA_FORMAT_SIGNED_RGBA8888_REV */ static void pack_float_SIGNED_RGBA8888_REV(const GLfloat src[4], void *dst) { GLuint *d = (GLuint *) dst; GLbyte r = FLOAT_TO_BYTE(CLAMP(src[RCOMP], -1.0f, 1.0f)); GLbyte g = FLOAT_TO_BYTE(CLAMP(src[GCOMP], -1.0f, 1.0f)); GLbyte b = FLOAT_TO_BYTE(CLAMP(src[BCOMP], -1.0f, 1.0f)); GLbyte a = FLOAT_TO_BYTE(CLAMP(src[ACOMP], -1.0f, 1.0f)); *d = PACK_COLOR_8888(a, b, g, r); } /* * MESA_FORMAT_SIGNED_R16 */ static void pack_float_SIGNED_R16(const GLfloat src[4], void *dst) { GLshort *d = (GLshort *) dst; *d = FLOAT_TO_SHORT(CLAMP(src[RCOMP], -1.0f, 1.0f)); } /* * MESA_FORMAT_SIGNED_GR1616 */ static void pack_float_SIGNED_GR1616(const GLfloat src[4], void *dst) { GLuint *d = (GLuint *) dst; GLshort r = FLOAT_TO_SHORT(CLAMP(src[RCOMP], -1.0f, 1.0f)); GLshort g = FLOAT_TO_SHORT(CLAMP(src[GCOMP], -1.0f, 1.0f)); *d = (g << 16) | (r & 0xffff); } /* * MESA_FORMAT_SIGNED_RGB_16 */ static void pack_float_SIGNED_RGB_16(const GLfloat src[4], void *dst) { GLshort *d = (GLshort *) dst; d[0] = FLOAT_TO_SHORT(CLAMP(src[RCOMP], -1.0f, 1.0f)); d[1] = FLOAT_TO_SHORT(CLAMP(src[GCOMP], -1.0f, 1.0f)); d[2] = FLOAT_TO_SHORT(CLAMP(src[BCOMP], -1.0f, 1.0f)); } /* * MESA_FORMAT_SIGNED_RGBA_16 */ static void pack_float_SIGNED_RGBA_16(const GLfloat src[4], void *dst) { GLshort *d = (GLshort *) dst; d[0] = FLOAT_TO_SHORT(CLAMP(src[RCOMP], -1.0f, 1.0f)); d[1] = FLOAT_TO_SHORT(CLAMP(src[GCOMP], -1.0f, 1.0f)); d[2] = FLOAT_TO_SHORT(CLAMP(src[BCOMP], -1.0f, 1.0f)); d[3] = FLOAT_TO_SHORT(CLAMP(src[ACOMP], -1.0f, 1.0f)); } /* * MESA_FORMAT_SIGNED_A8 */ static void pack_float_SIGNED_A8(const GLfloat src[4], void *dst) { GLbyte *d = (GLbyte *) dst; *d = FLOAT_TO_BYTE(CLAMP(src[ACOMP], -1.0f, 1.0f)); } /* * MESA_FORMAT_SIGNED_L8 */ static void pack_float_SIGNED_L8(const GLfloat src[4], void *dst) { GLbyte *d = (GLbyte *) dst; *d = FLOAT_TO_BYTE(CLAMP(src[RCOMP], -1.0f, 1.0f)); } /* * MESA_FORMAT_SIGNED_AL88 */ static void pack_float_SIGNED_AL88(const GLfloat src[4], void *dst) { GLushort *d = (GLushort *) dst; GLbyte l = FLOAT_TO_BYTE(CLAMP(src[RCOMP], -1.0f, 1.0f)); GLbyte a = FLOAT_TO_BYTE(CLAMP(src[ACOMP], -1.0f, 1.0f)); *d = (a << 8) | l; } /* * MESA_FORMAT_SIGNED_A16 */ static void pack_float_SIGNED_A16(const GLfloat src[4], void *dst) { GLshort *d = (GLshort *) dst; *d = FLOAT_TO_SHORT(CLAMP(src[ACOMP], -1.0f, 1.0f)); } /* * MESA_FORMAT_SIGNED_L16 */ static void pack_float_SIGNED_L16(const GLfloat src[4], void *dst) { GLshort *d = (GLshort *) dst; *d = FLOAT_TO_SHORT(CLAMP(src[RCOMP], -1.0f, 1.0f)); } /* * MESA_FORMAT_SIGNED_AL1616 */ static void pack_float_SIGNED_AL1616(const GLfloat src[4], void *dst) { GLuint *d = (GLuint *) dst; GLshort l = FLOAT_TO_SHORT(CLAMP(src[RCOMP], -1.0f, 1.0f)); GLshort a = FLOAT_TO_SHORT(CLAMP(src[ACOMP], -1.0f, 1.0f)); *d = PACK_COLOR_1616(a, l); } /* * MESA_FORMAT_RGB9_E5_FLOAT; */ static void pack_float_RGB9_E5_FLOAT(const GLfloat src[4], void *dst) { GLuint *d = (GLuint *) dst; *d = float3_to_rgb9e5(src); } static void pack_ubyte_RGB9_E5_FLOAT(const GLubyte src[4], void *dst) { GLuint *d = (GLuint *) dst; GLfloat rgb[3]; rgb[0] = UBYTE_TO_FLOAT(src[RCOMP]); rgb[1] = UBYTE_TO_FLOAT(src[GCOMP]); rgb[2] = UBYTE_TO_FLOAT(src[BCOMP]); *d = float3_to_rgb9e5(rgb); } /* * MESA_FORMAT_R11_G11_B10_FLOAT; */ static void pack_ubyte_R11_G11_B10_FLOAT(const GLubyte src[4], void *dst) { GLuint *d = (GLuint *) dst; GLfloat rgb[3]; rgb[0] = UBYTE_TO_FLOAT(src[RCOMP]); rgb[1] = UBYTE_TO_FLOAT(src[GCOMP]); rgb[2] = UBYTE_TO_FLOAT(src[BCOMP]); *d = float3_to_r11g11b10f(rgb); } static void pack_float_R11_G11_B10_FLOAT(const GLfloat src[4], void *dst) { GLuint *d = (GLuint *) dst; *d = float3_to_r11g11b10f(src); } /* * MESA_FORMAT_XRGB4444_UNORM */ static void pack_ubyte_XRGB4444_UNORM(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = PACK_COLOR_4444(255, src[RCOMP], src[GCOMP], src[BCOMP]); } static void pack_float_XRGB4444_UNORM(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_XRGB4444_UNORM(v, dst); } /* * MESA_FORMAT_XRGB1555_UNORM */ static void pack_ubyte_XRGB1555_UNORM(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); *d = PACK_COLOR_1555(255, src[RCOMP], src[GCOMP], src[BCOMP]); } static void pack_float_XRGB1555_UNORM(const GLfloat src[4], void *dst) { GLubyte v[4]; _mesa_unclamped_float_rgba_to_ubyte(v, src); pack_ubyte_XRGB1555_UNORM(v, dst); } /* * MESA_FORMAT_XBGR8888_SNORM */ static void pack_float_XBGR8888_SNORM(const GLfloat src[4], void *dst) { GLuint *d = (GLuint *) dst; GLbyte r = FLOAT_TO_BYTE(CLAMP(src[RCOMP], -1.0f, 1.0f)); GLbyte g = FLOAT_TO_BYTE(CLAMP(src[GCOMP], -1.0f, 1.0f)); GLbyte b = FLOAT_TO_BYTE(CLAMP(src[BCOMP], -1.0f, 1.0f)); *d = PACK_COLOR_8888(127, b, g, r); } /* * MESA_FORMAT_XBGR8888_SRGB */ static void pack_float_XBGR8888_SRGB(const GLfloat src[4], void *dst) { GLuint *d = (GLuint *) dst; GLubyte r = linear_float_to_srgb_ubyte(src[RCOMP]); GLubyte g = linear_float_to_srgb_ubyte(src[GCOMP]); GLubyte b = linear_float_to_srgb_ubyte(src[BCOMP]); *d = PACK_COLOR_8888(127, b, g, r); } /* MESA_FORMAT_XRGB2101010_UNORM */ static void pack_ubyte_XRGB2101010_UNORM(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort r = UBYTE_TO_USHORT(src[RCOMP]); GLushort g = UBYTE_TO_USHORT(src[GCOMP]); GLushort b = UBYTE_TO_USHORT(src[BCOMP]); *d = PACK_COLOR_2101010_US(3, r, g, b); } static void pack_float_XRGB2101010_UNORM(const GLfloat src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort r, g, b; UNCLAMPED_FLOAT_TO_USHORT(r, src[RCOMP]); UNCLAMPED_FLOAT_TO_USHORT(g, src[GCOMP]); UNCLAMPED_FLOAT_TO_USHORT(b, src[BCOMP]); *d = PACK_COLOR_2101010_US(3, r, g, b); } /* MESA_FORMAT_XBGR16161616_UNORM */ static void pack_ubyte_XBGR16161616_UNORM(const GLubyte src[4], void *dst) { GLushort *d = ((GLushort *) dst); d[0] = UBYTE_TO_USHORT(src[RCOMP]); d[1] = UBYTE_TO_USHORT(src[GCOMP]); d[2] = UBYTE_TO_USHORT(src[BCOMP]); d[3] = 65535; } static void pack_float_XBGR16161616_UNORM(const GLfloat src[4], void *dst) { GLushort *d = ((GLushort *) dst); UNCLAMPED_FLOAT_TO_USHORT(d[0], src[RCOMP]); UNCLAMPED_FLOAT_TO_USHORT(d[1], src[GCOMP]); UNCLAMPED_FLOAT_TO_USHORT(d[2], src[BCOMP]); d[3] = 65535; } /* MESA_FORMAT_XBGR16161616_SNORM */ static void pack_float_XBGR16161616_SNORM(const GLfloat src[4], void *dst) { GLushort *d = ((GLushort *) dst); UNCLAMPED_FLOAT_TO_SHORT(d[0], src[RCOMP]); UNCLAMPED_FLOAT_TO_SHORT(d[1], src[GCOMP]); UNCLAMPED_FLOAT_TO_SHORT(d[2], src[BCOMP]); d[3] = 32767; } /* MESA_FORMAT_XBGR16161616_FLOAT */ static void pack_float_XBGR16161616_FLOAT(const GLfloat src[4], void *dst) { GLushort *d = ((GLushort *) dst); d[0] = _mesa_float_to_half(src[RCOMP]); d[1] = _mesa_float_to_half(src[GCOMP]); d[2] = _mesa_float_to_half(src[BCOMP]); d[3] = _mesa_float_to_half(1.0); } /* MESA_FORMAT_XBGR32323232_FLOAT */ static void pack_float_XBGR32323232_FLOAT(const GLfloat src[4], void *dst) { GLfloat *d = ((GLfloat *) dst); d[0] = src[RCOMP]; d[1] = src[GCOMP]; d[2] = src[BCOMP]; d[3] = 1.0; } /* MESA_FORMAT_ABGR2101010 */ static void pack_ubyte_ABGR2101010(const GLubyte src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort r = UBYTE_TO_USHORT(src[RCOMP]); GLushort g = UBYTE_TO_USHORT(src[GCOMP]); GLushort b = UBYTE_TO_USHORT(src[BCOMP]); GLushort a = UBYTE_TO_USHORT(src[ACOMP]); *d = PACK_COLOR_2101010_US(a, b, g, r); } static void pack_float_ABGR2101010(const GLfloat src[4], void *dst) { GLuint *d = ((GLuint *) dst); GLushort r, g, b, a; UNCLAMPED_FLOAT_TO_USHORT(r, src[RCOMP]); UNCLAMPED_FLOAT_TO_USHORT(g, src[GCOMP]); UNCLAMPED_FLOAT_TO_USHORT(b, src[BCOMP]); UNCLAMPED_FLOAT_TO_USHORT(a, src[ACOMP]); *d = PACK_COLOR_2101010_US(a, b, g, r); } /* * MESA_FORMAT_SIGNED_RG88 */ static void pack_float_SIGNED_RG88(const GLfloat src[4], void *dst) { GLushort *d = (GLushort *) dst; GLbyte r = FLOAT_TO_BYTE(CLAMP(src[RCOMP], -1.0f, 1.0f)); GLbyte g = FLOAT_TO_BYTE(CLAMP(src[GCOMP], -1.0f, 1.0f)); *d = (r << 8) | (g & 0xff); } /* * MESA_FORMAT_SIGNED_RG1616 */ static void pack_float_SIGNED_RG1616(const GLfloat src[4], void *dst) { GLuint *d = (GLuint *) dst; GLshort r = FLOAT_TO_SHORT(CLAMP(src[RCOMP], -1.0f, 1.0f)); GLshort g = FLOAT_TO_SHORT(CLAMP(src[GCOMP], -1.0f, 1.0f)); *d = (r << 16) | (g & 0xffff); } /** * Return a function that can pack a GLubyte rgba[4] color. */ gl_pack_ubyte_rgba_func _mesa_get_pack_ubyte_rgba_function(mesa_format format) { static gl_pack_ubyte_rgba_func table[MESA_FORMAT_COUNT]; static GLboolean initialized = GL_FALSE; if (!initialized) { memset(table, 0, sizeof(table)); table[MESA_FORMAT_NONE] = NULL; table[MESA_FORMAT_RGBA8888] = pack_ubyte_RGBA8888; table[MESA_FORMAT_RGBA8888_REV] = pack_ubyte_RGBA8888_REV; table[MESA_FORMAT_ARGB8888] = pack_ubyte_ARGB8888; table[MESA_FORMAT_ARGB8888_REV] = pack_ubyte_ARGB8888_REV; table[MESA_FORMAT_RGBX8888] = pack_ubyte_RGBA8888; /* reused */ table[MESA_FORMAT_RGBX8888_REV] = pack_ubyte_RGBA8888_REV; /* reused */ table[MESA_FORMAT_XRGB8888] = pack_ubyte_XRGB8888; table[MESA_FORMAT_XRGB8888_REV] = pack_ubyte_XRGB8888_REV; table[MESA_FORMAT_RGB888] = pack_ubyte_RGB888; table[MESA_FORMAT_BGR888] = pack_ubyte_BGR888; table[MESA_FORMAT_RGB565] = pack_ubyte_RGB565; table[MESA_FORMAT_RGB565_REV] = pack_ubyte_RGB565_REV; table[MESA_FORMAT_ARGB4444] = pack_ubyte_ARGB4444; table[MESA_FORMAT_ARGB4444_REV] = pack_ubyte_ARGB4444_REV; table[MESA_FORMAT_RGBA5551] = pack_ubyte_RGBA5551; table[MESA_FORMAT_ARGB1555] = pack_ubyte_ARGB1555; table[MESA_FORMAT_ARGB1555_REV] = pack_ubyte_ARGB1555_REV; table[MESA_FORMAT_AL44] = pack_ubyte_AL44; table[MESA_FORMAT_AL88] = pack_ubyte_AL88; table[MESA_FORMAT_AL88_REV] = pack_ubyte_AL88_REV; table[MESA_FORMAT_AL1616] = pack_ubyte_AL1616; table[MESA_FORMAT_AL1616_REV] = pack_ubyte_AL1616_REV; table[MESA_FORMAT_RGB332] = pack_ubyte_RGB332; table[MESA_FORMAT_A8] = pack_ubyte_A8; table[MESA_FORMAT_A16] = pack_ubyte_A16; table[MESA_FORMAT_L8] = pack_ubyte_L8; table[MESA_FORMAT_L16] = pack_ubyte_L16; table[MESA_FORMAT_I8] = pack_ubyte_L8; /* reuse pack_ubyte_L8 */ table[MESA_FORMAT_I16] = pack_ubyte_L16; /* reuse pack_ubyte_L16 */ table[MESA_FORMAT_YCBCR] = pack_ubyte_YCBCR; table[MESA_FORMAT_YCBCR_REV] = pack_ubyte_YCBCR_REV; table[MESA_FORMAT_R8] = pack_ubyte_R8; table[MESA_FORMAT_GR88] = pack_ubyte_GR88; table[MESA_FORMAT_RG88] = pack_ubyte_RG88; table[MESA_FORMAT_R16] = pack_ubyte_R16; table[MESA_FORMAT_GR1616] = pack_ubyte_GR1616; table[MESA_FORMAT_RG1616] = pack_ubyte_RG1616; table[MESA_FORMAT_ARGB2101010] = pack_ubyte_ARGB2101010; table[MESA_FORMAT_ABGR2101010_UINT] = pack_ubyte_ABGR2101010_UINT; /* should never convert RGBA to these formats */ table[MESA_FORMAT_Z24_S8] = NULL; table[MESA_FORMAT_S8_Z24] = NULL; table[MESA_FORMAT_Z16] = NULL; table[MESA_FORMAT_X8_Z24] = NULL; table[MESA_FORMAT_Z24_X8] = NULL; table[MESA_FORMAT_Z32] = NULL; table[MESA_FORMAT_S8] = NULL; /* sRGB */ table[MESA_FORMAT_SRGB8] = pack_ubyte_SRGB8; table[MESA_FORMAT_SRGBA8] = pack_ubyte_SRGBA8; table[MESA_FORMAT_SARGB8] = pack_ubyte_SARGB8; table[MESA_FORMAT_SL8] = pack_ubyte_SL8; table[MESA_FORMAT_SLA8] = pack_ubyte_SLA8; /* n/a */ table[MESA_FORMAT_SRGB_DXT1] = NULL; /* pack_ubyte_SRGB_DXT1; */ table[MESA_FORMAT_SRGBA_DXT1] = NULL; /* pack_ubyte_SRGBA_DXT1; */ table[MESA_FORMAT_SRGBA_DXT3] = NULL; /* pack_ubyte_SRGBA_DXT3; */ table[MESA_FORMAT_SRGBA_DXT5] = NULL; /* pack_ubyte_SRGBA_DXT5; */ table[MESA_FORMAT_RGB_FXT1] = NULL; /* pack_ubyte_RGB_FXT1; */ table[MESA_FORMAT_RGBA_FXT1] = NULL; /* pack_ubyte_RGBA_FXT1; */ table[MESA_FORMAT_RGB_DXT1] = NULL; /* pack_ubyte_RGB_DXT1; */ table[MESA_FORMAT_RGBA_DXT1] = NULL; /* pack_ubyte_RGBA_DXT1; */ table[MESA_FORMAT_RGBA_DXT3] = NULL; /* pack_ubyte_RGBA_DXT3; */ table[MESA_FORMAT_RGBA_DXT5] = NULL; /* pack_ubyte_RGBA_DXT5; */ table[MESA_FORMAT_RGBA_FLOAT32] = pack_ubyte_RGBA_FLOAT32; table[MESA_FORMAT_RGBA_FLOAT16] = pack_ubyte_RGBA_FLOAT16; table[MESA_FORMAT_RGB_FLOAT32] = pack_ubyte_RGB_FLOAT32; table[MESA_FORMAT_RGB_FLOAT16] = pack_ubyte_RGB_FLOAT16; table[MESA_FORMAT_ALPHA_FLOAT32] = pack_ubyte_ALPHA_FLOAT32; table[MESA_FORMAT_ALPHA_FLOAT16] = pack_ubyte_ALPHA_FLOAT16; table[MESA_FORMAT_LUMINANCE_FLOAT32] = pack_ubyte_LUMINANCE_FLOAT32; table[MESA_FORMAT_LUMINANCE_FLOAT16] = pack_ubyte_LUMINANCE_FLOAT16; table[MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32] = pack_ubyte_LUMINANCE_ALPHA_FLOAT32; table[MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16] = pack_ubyte_LUMINANCE_ALPHA_FLOAT16; table[MESA_FORMAT_INTENSITY_FLOAT32] = pack_ubyte_LUMINANCE_FLOAT32; table[MESA_FORMAT_INTENSITY_FLOAT16] = pack_ubyte_LUMINANCE_FLOAT16; table[MESA_FORMAT_R_FLOAT32] = pack_ubyte_LUMINANCE_FLOAT32; table[MESA_FORMAT_R_FLOAT16] = pack_ubyte_LUMINANCE_FLOAT16; table[MESA_FORMAT_RG_FLOAT32] = pack_ubyte_RG_FLOAT32; table[MESA_FORMAT_RG_FLOAT16] = pack_ubyte_RG_FLOAT16; /* n/a */ table[MESA_FORMAT_RGBA_INT8] = NULL; /* pack_ubyte_RGBA_INT8 */ table[MESA_FORMAT_RGBA_INT16] = NULL; /* pack_ubyte_RGBA_INT16 */ table[MESA_FORMAT_RGBA_INT32] = NULL; /* pack_ubyte_RGBA_INT32 */ table[MESA_FORMAT_RGBA_UINT8] = NULL; /* pack_ubyte_RGBA_UINT8 */ table[MESA_FORMAT_RGBA_UINT16] = NULL; /* pack_ubyte_RGBA_UINT16 */ table[MESA_FORMAT_RGBA_UINT32] = NULL; /* pack_ubyte_RGBA_UINT32 */ table[MESA_FORMAT_DUDV8] = pack_ubyte_DUDV8; table[MESA_FORMAT_RGBA_16] = pack_ubyte_RGBA_16; /* n/a */ table[MESA_FORMAT_SIGNED_R8] = NULL; table[MESA_FORMAT_SIGNED_RG88_REV] = NULL; table[MESA_FORMAT_SIGNED_RGBX8888] = NULL; table[MESA_FORMAT_SIGNED_RGBA8888] = NULL; table[MESA_FORMAT_SIGNED_RGBA8888_REV] = NULL; table[MESA_FORMAT_SIGNED_R16] = NULL; table[MESA_FORMAT_SIGNED_GR1616] = NULL; table[MESA_FORMAT_SIGNED_RGB_16] = NULL; table[MESA_FORMAT_SIGNED_RGBA_16] = NULL; table[MESA_FORMAT_SIGNED_A8] = NULL; table[MESA_FORMAT_SIGNED_L8] = NULL; table[MESA_FORMAT_SIGNED_AL88] = NULL; table[MESA_FORMAT_SIGNED_I8] = NULL; table[MESA_FORMAT_SIGNED_A16] = NULL; table[MESA_FORMAT_SIGNED_L16] = NULL; table[MESA_FORMAT_SIGNED_AL1616] = NULL; table[MESA_FORMAT_SIGNED_I16] = NULL; table[MESA_FORMAT_RGBA_16] = pack_ubyte_RGBA_16; table[MESA_FORMAT_RGB9_E5_FLOAT] = pack_ubyte_RGB9_E5_FLOAT; table[MESA_FORMAT_R11_G11_B10_FLOAT] = pack_ubyte_R11_G11_B10_FLOAT; table[MESA_FORMAT_XRGB4444_UNORM] = pack_ubyte_XRGB4444_UNORM; table[MESA_FORMAT_XRGB1555_UNORM] = pack_ubyte_XRGB1555_UNORM; table[MESA_FORMAT_XBGR8888_SNORM] = NULL; table[MESA_FORMAT_XBGR8888_SRGB] = NULL; table[MESA_FORMAT_XBGR8888_UINT] = NULL; table[MESA_FORMAT_XBGR8888_SINT] = NULL; table[MESA_FORMAT_XRGB2101010_UNORM] = pack_ubyte_XRGB2101010_UNORM; table[MESA_FORMAT_XBGR16161616_UNORM] = pack_ubyte_XBGR16161616_UNORM; table[MESA_FORMAT_XBGR16161616_SNORM] = NULL; table[MESA_FORMAT_XBGR16161616_FLOAT] = NULL; table[MESA_FORMAT_XBGR16161616_UINT] = NULL; table[MESA_FORMAT_XBGR16161616_SINT] = NULL; table[MESA_FORMAT_XBGR32323232_FLOAT] = NULL; table[MESA_FORMAT_XBGR32323232_UINT] = NULL; table[MESA_FORMAT_XBGR32323232_SINT] = NULL; table[MESA_FORMAT_ABGR2101010] = pack_ubyte_ABGR2101010; initialized = GL_TRUE; } return table[format]; } /** * Return a function that can pack a GLfloat rgba[4] color. */ gl_pack_float_rgba_func _mesa_get_pack_float_rgba_function(mesa_format format) { static gl_pack_float_rgba_func table[MESA_FORMAT_COUNT]; static GLboolean initialized = GL_FALSE; if (!initialized) { memset(table, 0, sizeof(table)); table[MESA_FORMAT_NONE] = NULL; table[MESA_FORMAT_RGBA8888] = pack_float_RGBA8888; table[MESA_FORMAT_RGBA8888_REV] = pack_float_RGBA8888_REV; table[MESA_FORMAT_ARGB8888] = pack_float_ARGB8888; table[MESA_FORMAT_ARGB8888_REV] = pack_float_ARGB8888_REV; table[MESA_FORMAT_RGBX8888] = pack_float_RGBA8888; /* reused */ table[MESA_FORMAT_RGBX8888_REV] = pack_float_RGBA8888_REV; /* reused */ table[MESA_FORMAT_XRGB8888] = pack_float_XRGB8888; table[MESA_FORMAT_XRGB8888_REV] = pack_float_XRGB8888_REV; table[MESA_FORMAT_RGB888] = pack_float_RGB888; table[MESA_FORMAT_BGR888] = pack_float_BGR888; table[MESA_FORMAT_RGB565] = pack_float_RGB565; table[MESA_FORMAT_RGB565_REV] = pack_float_RGB565_REV; table[MESA_FORMAT_ARGB4444] = pack_float_ARGB4444; table[MESA_FORMAT_ARGB4444_REV] = pack_float_ARGB4444_REV; table[MESA_FORMAT_RGBA5551] = pack_float_RGBA5551; table[MESA_FORMAT_ARGB1555] = pack_float_ARGB1555; table[MESA_FORMAT_ARGB1555_REV] = pack_float_ARGB1555_REV; table[MESA_FORMAT_AL44] = pack_float_AL44; table[MESA_FORMAT_AL88] = pack_float_AL88; table[MESA_FORMAT_AL88_REV] = pack_float_AL88_REV; table[MESA_FORMAT_AL1616] = pack_float_AL1616; table[MESA_FORMAT_AL1616_REV] = pack_float_AL1616_REV; table[MESA_FORMAT_RGB332] = pack_float_RGB332; table[MESA_FORMAT_A8] = pack_float_A8; table[MESA_FORMAT_A16] = pack_float_A16; table[MESA_FORMAT_L8] = pack_float_L8; table[MESA_FORMAT_L16] = pack_float_L16; table[MESA_FORMAT_I8] = pack_float_L8; /* reuse pack_float_L8 */ table[MESA_FORMAT_I16] = pack_float_L16; /* reuse pack_float_L16 */ table[MESA_FORMAT_YCBCR] = pack_float_YCBCR; table[MESA_FORMAT_YCBCR_REV] = pack_float_YCBCR_REV; table[MESA_FORMAT_R8] = pack_float_R8; table[MESA_FORMAT_GR88] = pack_float_GR88; table[MESA_FORMAT_RG88] = pack_float_RG88; table[MESA_FORMAT_R16] = pack_float_R16; table[MESA_FORMAT_GR1616] = pack_float_GR1616; table[MESA_FORMAT_RG1616] = pack_float_RG1616; table[MESA_FORMAT_ARGB2101010] = pack_float_ARGB2101010; table[MESA_FORMAT_ABGR2101010_UINT] = pack_float_ABGR2101010_UINT; /* should never convert RGBA to these formats */ table[MESA_FORMAT_Z24_S8] = NULL; table[MESA_FORMAT_S8_Z24] = NULL; table[MESA_FORMAT_Z16] = NULL; table[MESA_FORMAT_X8_Z24] = NULL; table[MESA_FORMAT_Z24_X8] = NULL; table[MESA_FORMAT_Z32] = NULL; table[MESA_FORMAT_S8] = NULL; table[MESA_FORMAT_SRGB8] = pack_float_SRGB8; table[MESA_FORMAT_SRGBA8] = pack_float_SRGBA8; table[MESA_FORMAT_SARGB8] = pack_float_SARGB8; table[MESA_FORMAT_SL8] = pack_float_SL8; table[MESA_FORMAT_SLA8] = pack_float_SLA8; /* n/a */ table[MESA_FORMAT_SRGB_DXT1] = NULL; table[MESA_FORMAT_SRGBA_DXT1] = NULL; table[MESA_FORMAT_SRGBA_DXT3] = NULL; table[MESA_FORMAT_SRGBA_DXT5] = NULL; table[MESA_FORMAT_RGB_FXT1] = NULL; table[MESA_FORMAT_RGBA_FXT1] = NULL; table[MESA_FORMAT_RGB_DXT1] = NULL; table[MESA_FORMAT_RGBA_DXT1] = NULL; table[MESA_FORMAT_RGBA_DXT3] = NULL; table[MESA_FORMAT_RGBA_DXT5] = NULL; table[MESA_FORMAT_RGBA_FLOAT32] = pack_float_RGBA_FLOAT32; table[MESA_FORMAT_RGBA_FLOAT16] = pack_float_RGBA_FLOAT16; table[MESA_FORMAT_RGB_FLOAT32] = pack_float_RGB_FLOAT32; table[MESA_FORMAT_RGB_FLOAT16] = pack_float_RGB_FLOAT16; table[MESA_FORMAT_ALPHA_FLOAT32] = pack_float_ALPHA_FLOAT32; table[MESA_FORMAT_ALPHA_FLOAT16] = pack_float_ALPHA_FLOAT16; table[MESA_FORMAT_LUMINANCE_FLOAT32] = pack_float_LUMINANCE_FLOAT32; table[MESA_FORMAT_LUMINANCE_FLOAT16] = pack_float_LUMINANCE_FLOAT16; table[MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32] = pack_float_LUMINANCE_ALPHA_FLOAT32; table[MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16] = pack_float_LUMINANCE_ALPHA_FLOAT16; table[MESA_FORMAT_INTENSITY_FLOAT32] = pack_float_LUMINANCE_FLOAT32; table[MESA_FORMAT_INTENSITY_FLOAT16] = pack_float_LUMINANCE_FLOAT16; table[MESA_FORMAT_R_FLOAT32] = pack_float_LUMINANCE_FLOAT32; table[MESA_FORMAT_R_FLOAT16] = pack_float_LUMINANCE_FLOAT16; table[MESA_FORMAT_RG_FLOAT32] = pack_float_RG_FLOAT32; table[MESA_FORMAT_RG_FLOAT16] = pack_float_RG_FLOAT16; /* n/a */ table[MESA_FORMAT_RGBA_INT8] = NULL; table[MESA_FORMAT_RGBA_INT16] = NULL; table[MESA_FORMAT_RGBA_INT32] = NULL; table[MESA_FORMAT_RGBA_UINT8] = NULL; table[MESA_FORMAT_RGBA_UINT16] = NULL; table[MESA_FORMAT_RGBA_UINT32] = NULL; table[MESA_FORMAT_DUDV8] = pack_float_DUDV8; table[MESA_FORMAT_RGBA_16] = pack_float_RGBA_16; table[MESA_FORMAT_SIGNED_R8] = pack_float_SIGNED_R8; table[MESA_FORMAT_SIGNED_RG88_REV] = pack_float_SIGNED_RG88_REV; table[MESA_FORMAT_SIGNED_RGBX8888] = pack_float_SIGNED_RGBX8888; table[MESA_FORMAT_SIGNED_RGBA8888] = pack_float_SIGNED_RGBA8888; table[MESA_FORMAT_SIGNED_RGBA8888_REV] = pack_float_SIGNED_RGBA8888_REV; table[MESA_FORMAT_SIGNED_R16] = pack_float_SIGNED_R16; table[MESA_FORMAT_SIGNED_GR1616] = pack_float_SIGNED_GR1616; table[MESA_FORMAT_SIGNED_RGB_16] = pack_float_SIGNED_RGB_16; table[MESA_FORMAT_SIGNED_RGBA_16] = pack_float_SIGNED_RGBA_16; table[MESA_FORMAT_SIGNED_A8] = pack_float_SIGNED_A8; table[MESA_FORMAT_SIGNED_L8] = pack_float_SIGNED_L8; table[MESA_FORMAT_SIGNED_AL88] = pack_float_SIGNED_AL88; table[MESA_FORMAT_SIGNED_I8] = pack_float_SIGNED_L8; /* reused */ table[MESA_FORMAT_SIGNED_A16] = pack_float_SIGNED_A16; table[MESA_FORMAT_SIGNED_L16] = pack_float_SIGNED_L16; table[MESA_FORMAT_SIGNED_AL1616] = pack_float_SIGNED_AL1616; table[MESA_FORMAT_SIGNED_I16] = pack_float_SIGNED_L16; /* reused */ table[MESA_FORMAT_RGB9_E5_FLOAT] = pack_float_RGB9_E5_FLOAT; table[MESA_FORMAT_R11_G11_B10_FLOAT] = pack_float_R11_G11_B10_FLOAT; table[MESA_FORMAT_XRGB4444_UNORM] = pack_float_XRGB4444_UNORM; table[MESA_FORMAT_XRGB1555_UNORM] = pack_float_XRGB1555_UNORM; table[MESA_FORMAT_XBGR8888_SNORM] = pack_float_XBGR8888_SNORM; table[MESA_FORMAT_XBGR8888_SRGB] = pack_float_XBGR8888_SRGB; table[MESA_FORMAT_XBGR8888_UINT] = NULL; table[MESA_FORMAT_XBGR8888_SINT] = NULL; table[MESA_FORMAT_XRGB2101010_UNORM] = pack_float_XRGB2101010_UNORM; table[MESA_FORMAT_XBGR16161616_UNORM] = pack_float_XBGR16161616_UNORM; table[MESA_FORMAT_XBGR16161616_SNORM] = pack_float_XBGR16161616_SNORM; table[MESA_FORMAT_XBGR16161616_FLOAT] = pack_float_XBGR16161616_FLOAT; table[MESA_FORMAT_XBGR16161616_UINT] = NULL; table[MESA_FORMAT_XBGR16161616_SINT] = NULL; table[MESA_FORMAT_XBGR32323232_FLOAT] = pack_float_XBGR32323232_FLOAT; table[MESA_FORMAT_XBGR32323232_UINT] = NULL; table[MESA_FORMAT_XBGR32323232_SINT] = NULL; table[MESA_FORMAT_ABGR2101010] = pack_float_ABGR2101010; table[MESA_FORMAT_SIGNED_RG88] = pack_float_SIGNED_RG88; table[MESA_FORMAT_SIGNED_RG1616] = pack_float_SIGNED_RG1616; initialized = GL_TRUE; } return table[format]; } static pack_float_rgba_row_func get_pack_float_rgba_row_function(mesa_format format) { static pack_float_rgba_row_func table[MESA_FORMAT_COUNT]; static GLboolean initialized = GL_FALSE; if (!initialized) { /* We don't need a special row packing function for each format. * There's a generic fallback which uses a per-pixel packing function. */ memset(table, 0, sizeof(table)); table[MESA_FORMAT_RGBA8888] = pack_row_float_RGBA8888; table[MESA_FORMAT_RGBA8888_REV] = pack_row_float_RGBA8888_REV; table[MESA_FORMAT_ARGB8888] = pack_row_float_ARGB8888; table[MESA_FORMAT_ARGB8888_REV] = pack_row_float_ARGB8888_REV; table[MESA_FORMAT_RGBX8888] = pack_row_float_RGBA8888; /* reused */ table[MESA_FORMAT_RGBX8888_REV] = pack_row_float_RGBA8888_REV; /* reused */ table[MESA_FORMAT_XRGB8888] = pack_row_float_XRGB8888; table[MESA_FORMAT_XRGB8888_REV] = pack_row_float_XRGB8888_REV; table[MESA_FORMAT_RGB888] = pack_row_float_RGB888; table[MESA_FORMAT_BGR888] = pack_row_float_BGR888; table[MESA_FORMAT_RGB565] = pack_row_float_RGB565; table[MESA_FORMAT_RGB565_REV] = pack_row_float_RGB565_REV; initialized = GL_TRUE; } return table[format]; } static pack_ubyte_rgba_row_func get_pack_ubyte_rgba_row_function(mesa_format format) { static pack_ubyte_rgba_row_func table[MESA_FORMAT_COUNT]; static GLboolean initialized = GL_FALSE; if (!initialized) { /* We don't need a special row packing function for each format. * There's a generic fallback which uses a per-pixel packing function. */ memset(table, 0, sizeof(table)); table[MESA_FORMAT_RGBA8888] = pack_row_ubyte_RGBA8888; table[MESA_FORMAT_RGBA8888_REV] = pack_row_ubyte_RGBA8888_REV; table[MESA_FORMAT_ARGB8888] = pack_row_ubyte_ARGB8888; table[MESA_FORMAT_ARGB8888_REV] = pack_row_ubyte_ARGB8888_REV; table[MESA_FORMAT_RGBX8888] = pack_row_ubyte_RGBA8888; /* reused */ table[MESA_FORMAT_RGBX8888_REV] = pack_row_ubyte_RGBA8888_REV; /* reused */ table[MESA_FORMAT_XRGB8888] = pack_row_ubyte_XRGB8888; table[MESA_FORMAT_XRGB8888_REV] = pack_row_ubyte_XRGB8888_REV; table[MESA_FORMAT_RGB888] = pack_row_ubyte_RGB888; table[MESA_FORMAT_BGR888] = pack_row_ubyte_BGR888; table[MESA_FORMAT_RGB565] = pack_row_ubyte_RGB565; table[MESA_FORMAT_RGB565_REV] = pack_row_ubyte_RGB565_REV; initialized = GL_TRUE; } return table[format]; } /** * Pack a row of GLfloat rgba[4] values to the destination. */ void _mesa_pack_float_rgba_row(mesa_format format, GLuint n, const GLfloat src[][4], void *dst) { pack_float_rgba_row_func packrow = get_pack_float_rgba_row_function(format); if (packrow) { /* use "fast" function */ packrow(n, src, dst); } else { /* slower fallback */ gl_pack_float_rgba_func pack = _mesa_get_pack_float_rgba_function(format); GLuint dstStride = _mesa_get_format_bytes(format); GLubyte *dstPtr = (GLubyte *) dst; GLuint i; assert(pack); if (!pack) return; for (i = 0; i < n; i++) { pack(src[i], dstPtr); dstPtr += dstStride; } } } /** * Pack a row of GLubyte rgba[4] values to the destination. */ void _mesa_pack_ubyte_rgba_row(mesa_format format, GLuint n, const GLubyte src[][4], void *dst) { pack_ubyte_rgba_row_func packrow = get_pack_ubyte_rgba_row_function(format); if (packrow) { /* use "fast" function */ packrow(n, src, dst); } else { /* slower fallback */ gl_pack_ubyte_rgba_func pack = _mesa_get_pack_ubyte_rgba_function(format); const GLuint stride = _mesa_get_format_bytes(format); GLubyte *d = ((GLubyte *) dst); GLuint i; assert(pack); if (!pack) return; for (i = 0; i < n; i++) { pack(src[i], d); d += stride; } } } /** * Pack a 2D image of ubyte RGBA pixels in the given format. * \param srcRowStride source image row stride in bytes * \param dstRowStride destination image row stride in bytes */ void _mesa_pack_ubyte_rgba_rect(mesa_format format, GLuint width, GLuint height, const GLubyte *src, GLint srcRowStride, void *dst, GLint dstRowStride) { pack_ubyte_rgba_row_func packrow = get_pack_ubyte_rgba_row_function(format); GLubyte *dstUB = (GLubyte *) dst; GLuint i; if (packrow) { if (srcRowStride == width * 4 * sizeof(GLubyte) && dstRowStride == _mesa_format_row_stride(format, width)) { /* do whole image at once */ packrow(width * height, (const GLubyte (*)[4]) src, dst); } else { /* row by row */ for (i = 0; i < height; i++) { packrow(width, (const GLubyte (*)[4]) src, dstUB); src += srcRowStride; dstUB += dstRowStride; } } } else { /* slower fallback */ for (i = 0; i < height; i++) { _mesa_pack_ubyte_rgba_row(format, width, (const GLubyte (*)[4]) src, dstUB); src += srcRowStride; dstUB += dstRowStride; } } } /** ** Pack float Z pixels **/ static void pack_float_z_Z24_S8(const GLfloat *src, void *dst) { /* don't disturb the stencil values */ GLuint *d = ((GLuint *) dst); const GLdouble scale = (GLdouble) 0xffffff; GLuint s = *d & 0xff; GLuint z = (GLuint) (*src * scale); assert(z <= 0xffffff); *d = (z << 8) | s; } static void pack_float_z_S8_Z24(const GLfloat *src, void *dst) { /* don't disturb the stencil values */ GLuint *d = ((GLuint *) dst); const GLdouble scale = (GLdouble) 0xffffff; GLuint s = *d & 0xff000000; GLuint z = (GLuint) (*src * scale); assert(z <= 0xffffff); *d = s | z; } static void pack_float_z_Z16(const GLfloat *src, void *dst) { GLushort *d = ((GLushort *) dst); const GLfloat scale = (GLfloat) 0xffff; *d = (GLushort) (*src * scale); } static void pack_float_z_Z32(const GLfloat *src, void *dst) { GLuint *d = ((GLuint *) dst); const GLdouble scale = (GLdouble) 0xffffffff; *d = (GLuint) (*src * scale); } static void pack_float_z_Z32_FLOAT(const GLfloat *src, void *dst) { GLfloat *d = (GLfloat *) dst; *d = *src; } gl_pack_float_z_func _mesa_get_pack_float_z_func(mesa_format format) { switch (format) { case MESA_FORMAT_Z24_S8: case MESA_FORMAT_Z24_X8: return pack_float_z_Z24_S8; case MESA_FORMAT_S8_Z24: case MESA_FORMAT_X8_Z24: return pack_float_z_S8_Z24; case MESA_FORMAT_Z16: return pack_float_z_Z16; case MESA_FORMAT_Z32: return pack_float_z_Z32; case MESA_FORMAT_Z32_FLOAT: case MESA_FORMAT_Z32_FLOAT_X24S8: return pack_float_z_Z32_FLOAT; default: _mesa_problem(NULL, "unexpected format in _mesa_get_pack_float_z_func()"); return NULL; } } /** ** Pack uint Z pixels. The incoming src value is always in ** the range [0, 2^32-1]. **/ static void pack_uint_z_Z24_S8(const GLuint *src, void *dst) { /* don't disturb the stencil values */ GLuint *d = ((GLuint *) dst); GLuint s = *d & 0xff; GLuint z = *src & 0xffffff00; *d = z | s; } static void pack_uint_z_S8_Z24(const GLuint *src, void *dst) { /* don't disturb the stencil values */ GLuint *d = ((GLuint *) dst); GLuint s = *d & 0xff000000; GLuint z = *src >> 8; *d = s | z; } static void pack_uint_z_Z16(const GLuint *src, void *dst) { GLushort *d = ((GLushort *) dst); *d = *src >> 16; } static void pack_uint_z_Z32(const GLuint *src, void *dst) { GLuint *d = ((GLuint *) dst); *d = *src; } static void pack_uint_z_Z32_FLOAT(const GLuint *src, void *dst) { GLuint *d = ((GLuint *) dst); const GLdouble scale = 1.0 / (GLdouble) 0xffffffff; *d = (GLuint) (*src * scale); assert(*d >= 0.0f); assert(*d <= 1.0f); } static void pack_uint_z_Z32_FLOAT_X24S8(const GLuint *src, void *dst) { GLfloat *d = ((GLfloat *) dst); const GLdouble scale = 1.0 / (GLdouble) 0xffffffff; *d = (GLfloat) (*src * scale); assert(*d >= 0.0f); assert(*d <= 1.0f); } gl_pack_uint_z_func _mesa_get_pack_uint_z_func(mesa_format format) { switch (format) { case MESA_FORMAT_Z24_S8: case MESA_FORMAT_Z24_X8: return pack_uint_z_Z24_S8; case MESA_FORMAT_S8_Z24: case MESA_FORMAT_X8_Z24: return pack_uint_z_S8_Z24; case MESA_FORMAT_Z16: return pack_uint_z_Z16; case MESA_FORMAT_Z32: return pack_uint_z_Z32; case MESA_FORMAT_Z32_FLOAT: return pack_uint_z_Z32_FLOAT; case MESA_FORMAT_Z32_FLOAT_X24S8: return pack_uint_z_Z32_FLOAT_X24S8; default: _mesa_problem(NULL, "unexpected format in _mesa_get_pack_uint_z_func()"); return NULL; } } /** ** Pack ubyte stencil pixels **/ static void pack_ubyte_stencil_Z24_S8(const GLubyte *src, void *dst) { /* don't disturb the Z values */ GLuint *d = ((GLuint *) dst); GLuint s = *src; GLuint z = *d & 0xffffff00; *d = z | s; } static void pack_ubyte_stencil_S8_Z24(const GLubyte *src, void *dst) { /* don't disturb the Z values */ GLuint *d = ((GLuint *) dst); GLuint s = *src << 24; GLuint z = *d & 0xffffff; *d = s | z; } static void pack_ubyte_stencil_S8(const GLubyte *src, void *dst) { GLubyte *d = (GLubyte *) dst; *d = *src; } static void pack_ubyte_stencil_Z32_FLOAT_X24S8(const GLubyte *src, void *dst) { GLfloat *d = ((GLfloat *) dst); d[1] = *src; } gl_pack_ubyte_stencil_func _mesa_get_pack_ubyte_stencil_func(mesa_format format) { switch (format) { case MESA_FORMAT_Z24_S8: return pack_ubyte_stencil_Z24_S8; case MESA_FORMAT_S8_Z24: return pack_ubyte_stencil_S8_Z24; case MESA_FORMAT_S8: return pack_ubyte_stencil_S8; case MESA_FORMAT_Z32_FLOAT_X24S8: return pack_ubyte_stencil_Z32_FLOAT_X24S8; default: _mesa_problem(NULL, "unexpected format in _mesa_pack_ubyte_stencil_func()"); return NULL; } } void _mesa_pack_float_z_row(mesa_format format, GLuint n, const GLfloat *src, void *dst) { switch (format) { case MESA_FORMAT_Z24_S8: case MESA_FORMAT_Z24_X8: { /* don't disturb the stencil values */ GLuint *d = ((GLuint *) dst); const GLdouble scale = (GLdouble) 0xffffff; GLuint i; for (i = 0; i < n; i++) { GLuint s = d[i] & 0xff; GLuint z = (GLuint) (src[i] * scale); assert(z <= 0xffffff); d[i] = (z << 8) | s; } } break; case MESA_FORMAT_S8_Z24: case MESA_FORMAT_X8_Z24: { /* don't disturb the stencil values */ GLuint *d = ((GLuint *) dst); const GLdouble scale = (GLdouble) 0xffffff; GLuint i; for (i = 0; i < n; i++) { GLuint s = d[i] & 0xff000000; GLuint z = (GLuint) (src[i] * scale); assert(z <= 0xffffff); d[i] = s | z; } } break; case MESA_FORMAT_Z16: { GLushort *d = ((GLushort *) dst); const GLfloat scale = (GLfloat) 0xffff; GLuint i; for (i = 0; i < n; i++) { d[i] = (GLushort) (src[i] * scale); } } break; case MESA_FORMAT_Z32: { GLuint *d = ((GLuint *) dst); const GLdouble scale = (GLdouble) 0xffffffff; GLuint i; for (i = 0; i < n; i++) { d[i] = (GLuint) (src[i] * scale); } } break; case MESA_FORMAT_Z32_FLOAT: memcpy(dst, src, n * sizeof(GLfloat)); break; case MESA_FORMAT_Z32_FLOAT_X24S8: { struct z32f_x24s8 *d = (struct z32f_x24s8 *) dst; GLuint i; for (i = 0; i < n; i++) { d[i].z = src[i]; } } break; default: _mesa_problem(NULL, "unexpected format in _mesa_pack_float_z_row()"); } } /** * The incoming Z values are always in the range [0, 0xffffffff]. */ void _mesa_pack_uint_z_row(mesa_format format, GLuint n, const GLuint *src, void *dst) { switch (format) { case MESA_FORMAT_Z24_S8: case MESA_FORMAT_Z24_X8: { /* don't disturb the stencil values */ GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { GLuint s = d[i] & 0xff; GLuint z = src[i] & 0xffffff00; d[i] = z | s; } } break; case MESA_FORMAT_S8_Z24: case MESA_FORMAT_X8_Z24: { /* don't disturb the stencil values */ GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { GLuint s = d[i] & 0xff000000; GLuint z = src[i] >> 8; d[i] = s | z; } } break; case MESA_FORMAT_Z16: { GLushort *d = ((GLushort *) dst); GLuint i; for (i = 0; i < n; i++) { d[i] = src[i] >> 16; } } break; case MESA_FORMAT_Z32: memcpy(dst, src, n * sizeof(GLfloat)); break; case MESA_FORMAT_Z32_FLOAT: { GLuint *d = ((GLuint *) dst); const GLdouble scale = 1.0 / (GLdouble) 0xffffffff; GLuint i; for (i = 0; i < n; i++) { d[i] = (GLuint) (src[i] * scale); assert(d[i] >= 0.0f); assert(d[i] <= 1.0f); } } break; case MESA_FORMAT_Z32_FLOAT_X24S8: { struct z32f_x24s8 *d = (struct z32f_x24s8 *) dst; const GLdouble scale = 1.0 / (GLdouble) 0xffffffff; GLuint i; for (i = 0; i < n; i++) { d[i].z = (GLfloat) (src[i] * scale); assert(d[i].z >= 0.0f); assert(d[i].z <= 1.0f); } } break; default: _mesa_problem(NULL, "unexpected format in _mesa_pack_uint_z_row()"); } } void _mesa_pack_ubyte_stencil_row(mesa_format format, GLuint n, const GLubyte *src, void *dst) { switch (format) { case MESA_FORMAT_Z24_S8: { /* don't disturb the Z values */ GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { GLuint s = src[i]; GLuint z = d[i] & 0xffffff00; d[i] = z | s; } } break; case MESA_FORMAT_S8_Z24: { /* don't disturb the Z values */ GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { GLuint s = src[i] << 24; GLuint z = d[i] & 0xffffff; d[i] = s | z; } } break; case MESA_FORMAT_S8: memcpy(dst, src, n * sizeof(GLubyte)); break; case MESA_FORMAT_Z32_FLOAT_X24S8: { struct z32f_x24s8 *d = (struct z32f_x24s8 *) dst; GLuint i; for (i = 0; i < n; i++) { d[i].x24s8 = src[i]; } } break; default: _mesa_problem(NULL, "unexpected format in _mesa_pack_ubyte_stencil_row()"); } } /** * Incoming Z/stencil values are always in uint_24_8 format. */ void _mesa_pack_uint_24_8_depth_stencil_row(mesa_format format, GLuint n, const GLuint *src, void *dst) { switch (format) { case MESA_FORMAT_Z24_S8: memcpy(dst, src, n * sizeof(GLuint)); break; case MESA_FORMAT_S8_Z24: { GLuint *d = ((GLuint *) dst); GLuint i; for (i = 0; i < n; i++) { GLuint s = src[i] << 24; GLuint z = src[i] >> 8; d[i] = s | z; } } break; case MESA_FORMAT_Z32_FLOAT_X24S8: { const GLdouble scale = 1.0 / (GLdouble) 0xffffff; struct z32f_x24s8 *d = (struct z32f_x24s8 *) dst; GLuint i; for (i = 0; i < n; i++) { GLfloat z = (GLfloat) ((src[i] >> 8) * scale); d[i].z = z; d[i].x24s8 = src[i]; } } break; default: _mesa_problem(NULL, "bad format %s in _mesa_pack_ubyte_s_row", _mesa_get_format_name(format)); return; } } /** * Convert a boolean color mask to a packed color where each channel of * the packed value at dst will be 0 or ~0 depending on the colorMask. */ void _mesa_pack_colormask(mesa_format format, const GLubyte colorMask[4], void *dst) { GLfloat maskColor[4]; switch (_mesa_get_format_datatype(format)) { case GL_UNSIGNED_NORMALIZED: /* simple: 1.0 will convert to ~0 in the right bit positions */ maskColor[0] = colorMask[0] ? 1.0f : 0.0f; maskColor[1] = colorMask[1] ? 1.0f : 0.0f; maskColor[2] = colorMask[2] ? 1.0f : 0.0f; maskColor[3] = colorMask[3] ? 1.0f : 0.0f; _mesa_pack_float_rgba_row(format, 1, (const GLfloat (*)[4]) maskColor, dst); break; case GL_SIGNED_NORMALIZED: case GL_FLOAT: /* These formats are harder because it's hard to know the floating * point values that will convert to ~0 for each color channel's bits. * This solution just generates a non-zero value for each color channel * then fixes up the non-zero values to be ~0. * Note: we'll need to add special case code if we ever have to deal * with formats with unequal color channel sizes, like R11_G11_B10. * We issue a warning below for channel sizes other than 8,16,32. */ { GLuint bits = _mesa_get_format_max_bits(format); /* bits per chan */ GLuint bytes = _mesa_get_format_bytes(format); GLuint i; /* this should put non-zero values into the channels of dst */ maskColor[0] = colorMask[0] ? -1.0f : 0.0f; maskColor[1] = colorMask[1] ? -1.0f : 0.0f; maskColor[2] = colorMask[2] ? -1.0f : 0.0f; maskColor[3] = colorMask[3] ? -1.0f : 0.0f; _mesa_pack_float_rgba_row(format, 1, (const GLfloat (*)[4]) maskColor, dst); /* fix-up the dst channels by converting non-zero values to ~0 */ if (bits == 8) { GLubyte *d = (GLubyte *) dst; for (i = 0; i < bytes; i++) { d[i] = d[i] ? 0xff : 0x0; } } else if (bits == 16) { GLushort *d = (GLushort *) dst; for (i = 0; i < bytes / 2; i++) { d[i] = d[i] ? 0xffff : 0x0; } } else if (bits == 32) { GLuint *d = (GLuint *) dst; for (i = 0; i < bytes / 4; i++) { d[i] = d[i] ? 0xffffffffU : 0x0; } } else { _mesa_problem(NULL, "unexpected size in _mesa_pack_colormask()"); return; } } break; default: _mesa_problem(NULL, "unexpected format data type in gen_color_mask()"); return; } }