/*
* 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_S8X24_UINT */
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_A8B8G8R8_UNORM
*/
static void
pack_ubyte_A8B8G8R8_UNORM(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_A8B8G8R8_UNORM(const GLfloat src[4], void *dst)
{
GLubyte v[4];
_mesa_unclamped_float_rgba_to_ubyte(v, src);
pack_ubyte_A8B8G8R8_UNORM(v, dst);
}
static void
pack_row_ubyte_A8B8G8R8_UNORM(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_A8B8G8R8_UNORM(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_A8B8G8R8_UNORM(v, d + i);
}
}
/*
* MESA_FORMAT_R8G8B8A8_UNORM
*/
static void
pack_ubyte_R8G8B8A8_UNORM(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_R8G8B8A8_UNORM(const GLfloat src[4], void *dst)
{
GLubyte v[4];
_mesa_unclamped_float_rgba_to_ubyte(v, src);
pack_ubyte_R8G8B8A8_UNORM(v, dst);
}
static void
pack_row_ubyte_R8G8B8A8_UNORM(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_R8G8B8A8_UNORM(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_R8G8B8A8_UNORM(v, d + i);
}
}
/*
* MESA_FORMAT_B8G8R8A8_UNORM
*/
static void
pack_ubyte_B8G8R8A8_UNORM(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_B8G8R8A8_UNORM(const GLfloat src[4], void *dst)
{
GLubyte v[4];
_mesa_unclamped_float_rgba_to_ubyte(v, src);
pack_ubyte_B8G8R8A8_UNORM(v, dst);
}
static void
pack_row_ubyte_B8G8R8A8_UNORM(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_B8G8R8A8_UNORM(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_B8G8R8A8_UNORM(v, d + i);
}
}
/*
* MESA_FORMAT_A8R8G8B8_UNORM
*/
static void
pack_ubyte_A8R8G8B8_UNORM(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_A8R8G8B8_UNORM(const GLfloat src[4], void *dst)
{
GLubyte v[4];
_mesa_unclamped_float_rgba_to_ubyte(v, src);
pack_ubyte_A8R8G8B8_UNORM(v, dst);
}
static void
pack_row_ubyte_A8R8G8B8_UNORM(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_A8R8G8B8_UNORM(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_A8R8G8B8_UNORM(v, d + i);
}
}
/*
* MESA_FORMAT_B8G8R8X8_UNORM
*/
static void
pack_ubyte_B8G8R8X8_UNORM(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_B8G8R8X8_UNORM(const GLfloat src[4], void *dst)
{
GLubyte v[4];
_mesa_unclamped_float_rgba_to_ubyte(v, src);
pack_ubyte_B8G8R8X8_UNORM(v, dst);
}
static void
pack_row_ubyte_B8G8R8X8_UNORM(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_B8G8R8X8_UNORM(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_B8G8R8X8_UNORM(v, d + i);
}
}
/*
* MESA_FORMAT_X8R8G8B8_UNORM
*/
static void
pack_ubyte_X8R8G8B8_UNORM(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_X8R8G8B8_UNORM(const GLfloat src[4], void *dst)
{
GLubyte v[4];
_mesa_unclamped_float_rgba_to_ubyte(v, src);
pack_ubyte_X8R8G8B8_UNORM(v, dst);
}
static void
pack_row_ubyte_X8R8G8B8_UNORM(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_X8R8G8B8_UNORM(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_X8R8G8B8_UNORM(v, d + i);
}
}
/*
* MESA_FORMAT_BGR_UNORM8
*/
static void
pack_ubyte_BGR_UNORM8(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_BGR_UNORM8(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_BGR_UNORM8(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_BGR_UNORM8(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_RGB_UNORM8
*/
static void
pack_ubyte_RGB_UNORM8(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_RGB_UNORM8(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_RGB_UNORM8(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_RGB_UNORM8(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_B5G6R5_UNORM
*/
static void
pack_ubyte_B5G6R5_UNORM(const GLubyte src[4], void *dst)
{
GLushort *d = ((GLushort *) dst);
*d = PACK_COLOR_565(src[RCOMP], src[GCOMP], src[BCOMP]);
}
static void
pack_float_B5G6R5_UNORM(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_B5G6R5_UNORM(v, dst);
}
static void
pack_row_ubyte_B5G6R5_UNORM(GLuint n, const GLubyte src[][4], void *dst)
{
GLushort *d = ((GLushort *) dst);
GLuint i;
for (i = 0; i < n; i++) {
pack_ubyte_B5G6R5_UNORM(src[i], d + i);
}
}
static void
pack_row_float_B5G6R5_UNORM(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_B5G6R5_UNORM(v, d + i);
}
}
/*
* MESA_FORMAT_R5G6B5_UNORM
* Warning: these functions do not match the current Mesa definition
* of MESA_FORMAT_R5G6B5_UNORM.
*/
static void
pack_ubyte_R5G6B5_UNORM(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_R5G6B5_UNORM(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_R5G6B5_UNORM(GLuint n, const GLubyte src[][4], void *dst)
{
GLushort *d = ((GLushort *) dst);
GLuint i;
for (i = 0; i < n; i++) {
pack_ubyte_R5G6B5_UNORM(src[i], d + i);
}
}
static void
pack_row_float_R5G6B5_UNORM(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_R5G6B5_UNORM(v, d + i);
}
}
/*
* MESA_FORMAT_B4G4R4A4_UNORM
*/
static void
pack_ubyte_B4G4R4A4_UNORM(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_B4G4R4A4_UNORM(const GLfloat src[4], void *dst)
{
GLubyte v[4];
_mesa_unclamped_float_rgba_to_ubyte(v, src);
pack_ubyte_B4G4R4A4_UNORM(v, dst);
}
/* use fallback row packing functions */
/*
* MESA_FORMAT_A4R4G4B4_UNORM
*/
static void
pack_ubyte_A4R4G4B4_UNORM(const GLubyte src[4], void *dst)
{
GLushort *d = ((GLushort *) dst);
*d = PACK_COLOR_4444(src[BCOMP], src[GCOMP], src[RCOMP], src[ACOMP]);
}
static void
pack_float_A4R4G4B4_UNORM(const GLfloat src[4], void *dst)
{
GLubyte v[4];
_mesa_unclamped_float_rgba_to_ubyte(v, src);
pack_ubyte_A4R4G4B4_UNORM(v, dst);
}
/* use fallback row packing functions */
/*
* MESA_FORMAT_A1B5G5R5_UNORM
*/
static void
pack_ubyte_A1B5G5R5_UNORM(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_A1B5G5R5_UNORM(const GLfloat src[4], void *dst)
{
GLubyte v[4];
_mesa_unclamped_float_rgba_to_ubyte(v, src);
pack_ubyte_A1B5G5R5_UNORM(v, dst);
}
/* use fallback row packing functions */
/*
* MESA_FORMAT_B5G5R5A1_UNORM
*/
static void
pack_ubyte_B5G5R5A1_UNORM(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_B5G5R5A1_UNORM(const GLfloat src[4], void *dst)
{
GLubyte v[4];
_mesa_unclamped_float_rgba_to_ubyte(v, src);
pack_ubyte_B5G5R5A1_UNORM(v, dst);
}
/* MESA_FORMAT_A1R5G5B5_UNORM
* Warning: these functions do not match the current Mesa definition
* of MESA_FORMAT_A1R5G5B5_UNORM.
*/
static void
pack_ubyte_A1R5G5B5_UNORM(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_A1R5G5B5_UNORM(const GLfloat src[4], void *dst)
{
GLubyte v[4];
_mesa_unclamped_float_rgba_to_ubyte(v, src);
pack_ubyte_A1R5G5B5_UNORM(v, dst);
}
/* MESA_FORMAT_L4A4_UNORM */
static void
pack_ubyte_L4A4_UNORM(const GLubyte src[4], void *dst)
{
GLubyte *d = ((GLubyte *) dst);
*d = PACK_COLOR_44(src[ACOMP], src[RCOMP]);
}
static void
pack_float_L4A4_UNORM(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_L4A4_UNORM(v, dst);
}
/* MESA_FORMAT_L8A8_UNORM */
static void
pack_ubyte_L8A8_UNORM(const GLubyte src[4], void *dst)
{
GLushort *d = ((GLushort *) dst);
*d = PACK_COLOR_88(src[ACOMP], src[RCOMP]);
}
static void
pack_float_L8A8_UNORM(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_L8A8_UNORM(v, dst);
}
/* MESA_FORMAT_A8L8_UNORM */
static void
pack_ubyte_A8L8_UNORM(const GLubyte src[4], void *dst)
{
GLushort *d = ((GLushort *) dst);
*d = PACK_COLOR_88(src[RCOMP], src[ACOMP]);
}
static void
pack_float_A8L8_UNORM(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_A8L8_UNORM(v, dst);
}
/* MESA_FORMAT_L16A16_UNORM */
static void
pack_ubyte_L16A16_UNORM(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_L16A16_UNORM(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_A16L16_UNORM */
static void
pack_ubyte_A16L16_UNORM(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_A16L16_UNORM(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_B2G3R3_UNORM */
static void
pack_ubyte_B2G3R3_UNORM(const GLubyte src[4], void *dst)
{
GLubyte *d = ((GLubyte *) dst);
*d = PACK_COLOR_332(src[RCOMP], src[GCOMP], src[BCOMP]);
}
static void
pack_float_B2G3R3_UNORM(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_B2G3R3_UNORM(v, dst);
}
/* MESA_FORMAT_A_UNORM8 */
static void
pack_ubyte_A_UNORM8(const GLubyte src[4], void *dst)
{
GLubyte *d = ((GLubyte *) dst);
*d = src[ACOMP];
}
static void
pack_float_A_UNORM8(const GLfloat src[4], void *dst)
{
GLubyte *d = ((GLubyte *) dst);
UNCLAMPED_FLOAT_TO_UBYTE(d[0], src[ACOMP]);
}
/* MESA_FORMAT_A_UNORM16 */
static void
pack_ubyte_A_UNORM16(const GLubyte src[4], void *dst)
{
GLushort *d = ((GLushort *) dst);
*d = UBYTE_TO_USHORT(src[ACOMP]);
}
static void
pack_float_A_UNORM16(const GLfloat src[4], void *dst)
{
GLushort *d = ((GLushort *) dst);
UNCLAMPED_FLOAT_TO_USHORT(d[0], src[ACOMP]);
}
/* MESA_FORMAT_L_UNORM8 */
static void
pack_ubyte_L_UNORM8(const GLubyte src[4], void *dst)
{
GLubyte *d = ((GLubyte *) dst);
*d = src[RCOMP];
}
static void
pack_float_L_UNORM8(const GLfloat src[4], void *dst)
{
GLubyte *d = ((GLubyte *) dst);
UNCLAMPED_FLOAT_TO_UBYTE(d[0], src[RCOMP]);
}
/* MESA_FORMAT_L_UNORM16 */
static void
pack_ubyte_L_UNORM16(const GLubyte src[4], void *dst)
{
GLushort *d = ((GLushort *) dst);
*d = UBYTE_TO_USHORT(src[RCOMP]);
}
static void
pack_float_L_UNORM16(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_R_UNORM8 */
static void
pack_ubyte_R_UNORM8(const GLubyte src[4], void *dst)
{
GLubyte *d = ((GLubyte *) dst);
*d = src[RCOMP];
}
static void
pack_float_R_UNORM8(const GLfloat src[4], void *dst)
{
GLubyte *d = ((GLubyte *) dst);
GLubyte r;
UNCLAMPED_FLOAT_TO_UBYTE(r, src[RCOMP]);
d[0] = r;
}
/* MESA_FORMAT_R8G8_UNORM */
static void
pack_ubyte_R8G8_UNORM(const GLubyte src[4], void *dst)
{
GLubyte *d = ((GLubyte *) dst);
*d = PACK_COLOR_88(src[GCOMP], src[RCOMP]);
}
static void
pack_float_R8G8_UNORM(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_G8R8_UNORM */
static void
pack_ubyte_G8R8_UNORM(const GLubyte src[4], void *dst)
{
GLubyte *d = ((GLubyte *) dst);
*d = PACK_COLOR_88(src[RCOMP], src[GCOMP]);
}
static void
pack_float_G8R8_UNORM(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_R_UNORM16 */
static void
pack_ubyte_R_UNORM16(const GLubyte src[4], void *dst)
{
GLushort *d = ((GLushort *) dst);
*d = UBYTE_TO_USHORT(src[RCOMP]);
}
static void
pack_float_R_UNORM16(const GLfloat src[4], void *dst)
{
GLushort *d = ((GLushort *) dst);
UNCLAMPED_FLOAT_TO_USHORT(d[0], src[RCOMP]);
}
/* MESA_FORMAT_R16G16_UNORM */
static void
pack_ubyte_R16G16_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]);
*d = PACK_COLOR_1616(g, r);
}
static void
pack_float_R16G16_UNORM(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_G16R16_UNORM */
static void
pack_ubyte_G16R16_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]);
*d = PACK_COLOR_1616(r, g);
}
static void
pack_float_G16R16_UNORM(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_B10G10R10A2_UNORM */
static void
pack_ubyte_B10G10R10A2_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]);
GLushort a = UBYTE_TO_USHORT(src[ACOMP]);
*d = PACK_COLOR_2101010_US(a, r, g, b);
}
static void
pack_float_B10G10R10A2_UNORM(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_R10G10B10A2_UINT */
static void
pack_ubyte_R10G10B10A2_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_R10G10B10A2_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_BGR_SRGB8 */
static void
pack_ubyte_BGR_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[GCOMP]);
d[0] = linear_ubyte_to_srgb_ubyte(src[BCOMP]);
}
static void
pack_float_BGR_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_A8B8G8R8_SRGB */
static void
pack_ubyte_A8B8G8R8_SRGB(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_A8B8G8R8_SRGB(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_B8G8R8A8_SRGB */
static void
pack_ubyte_B8G8R8A8_SRGB(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(src[ACOMP], r, g, b);
}
static void
pack_float_B8G8R8A8_SRGB(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_R8G8B8A8_SRGB */
static void
pack_ubyte_R8G8B8A8_SRGB(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(src[ACOMP], b, g, r);
}
static void
pack_float_R8G8B8A8_SRGB(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, b, g, r);
}
/* MESA_FORMAT_L_SRGB8 */
static void
pack_ubyte_L_SRGB8(const GLubyte src[4], void *dst)
{
GLubyte *d = ((GLubyte *) dst);
*d = linear_ubyte_to_srgb_ubyte(src[RCOMP]);
}
static void
pack_float_L_SRGB8(const GLfloat src[4], void *dst)
{
GLubyte *d = ((GLubyte *) dst);
GLubyte l = linear_float_to_srgb_ubyte(src[RCOMP]);
*d = l;
}
/* MESA_FORMAT_L8A8_SRGB */
static void
pack_ubyte_L8A8_SRGB(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_L8A8_SRGB(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_A_FLOAT32 */
static void
pack_ubyte_A_FLOAT32(const GLubyte src[4], void *dst)
{
GLfloat *d = ((GLfloat *) dst);
d[0] = UBYTE_TO_FLOAT(src[ACOMP]);
}
static void
pack_float_A_FLOAT32(const GLfloat src[4], void *dst)
{
GLfloat *d = ((GLfloat *) dst);
d[0] = src[ACOMP];
}
/* MESA_FORMAT_A_FLOAT16 */
static void
pack_ubyte_A_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_A_FLOAT16(const GLfloat src[4], void *dst)
{
GLhalfARB *d = ((GLhalfARB *) dst);
d[0] = _mesa_float_to_half(src[ACOMP]);
}
/* MESA_FORMAT_L_FLOAT32 (and I_FLOAT32, R_FLOAT32) */
static void
pack_ubyte_L_FLOAT32(const GLubyte src[4], void *dst)
{
GLfloat *d = ((GLfloat *) dst);
d[0] = UBYTE_TO_FLOAT(src[RCOMP]);
}
static void
pack_float_L_FLOAT32(const GLfloat src[4], void *dst)
{
GLfloat *d = ((GLfloat *) dst);
d[0] = src[RCOMP];
}
/* MESA_FORMAT_L_FLOAT16 (and I_FLOAT16, R_FLOAT32) */
static void
pack_ubyte_L_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_L_FLOAT16(const GLfloat src[4], void *dst)
{
GLhalfARB *d = ((GLhalfARB *) dst);
d[0] = _mesa_float_to_half(src[RCOMP]);
}
/* MESA_FORMAT_LA_FLOAT32 */
static void
pack_ubyte_LA_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_LA_FLOAT32(const GLfloat src[4], void *dst)
{
GLfloat *d = ((GLfloat *) dst);
d[0] = src[RCOMP];
d[1] = src[ACOMP];
}
/* MESA_FORMAT_LA_FLOAT16 */
static void
pack_ubyte_LA_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_LA_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_RGBA_UNORM16 */
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_R_SNORM8
*/
static void
pack_float_R_SNORM8(const GLfloat src[4], void *dst)
{
GLbyte *d = (GLbyte *) dst;
*d = FLOAT_TO_BYTE(CLAMP(src[RCOMP], -1.0f, 1.0f));
}
/*
* MESA_FORMAT_R8G8_SNORM
*/
static void
pack_float_R8G8_SNORM(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_X8B8G8R8_SNORM
*/
static void
pack_float_X8B8G8R8_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));
GLbyte a = 127;
*d = PACK_COLOR_8888(r, g, b, a);
}
/*
* MESA_FORMAT_A8B8G8R8_SNORM
*/
static void
pack_float_A8B8G8R8_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));
GLbyte a = FLOAT_TO_BYTE(CLAMP(src[ACOMP], -1.0f, 1.0f));
*d = PACK_COLOR_8888(r, g, b, a);
}
/*
* MESA_FORMAT_R8G8B8A8_SNORM
*/
static void
pack_float_R8G8B8A8_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));
GLbyte a = FLOAT_TO_BYTE(CLAMP(src[ACOMP], -1.0f, 1.0f));
*d = PACK_COLOR_8888(a, b, g, r);
}
/*
* MESA_FORMAT_R_SNORM16
*/
static void
pack_float_R_SNORM16(const GLfloat src[4], void *dst)
{
GLshort *d = (GLshort *) dst;
*d = FLOAT_TO_SHORT(CLAMP(src[RCOMP], -1.0f, 1.0f));
}
/*
* MESA_FORMAT_R16G16_SNORM
*/
static void
pack_float_R16G16_SNORM(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_RGB_SNORM16
*/
static void
pack_float_RGB_SNORM16(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_RGBA_SNORM16
*/
static void
pack_float_RGBA_SNORM16(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_A_SNORM8
*/
static void
pack_float_A_SNORM8(const GLfloat src[4], void *dst)
{
GLbyte *d = (GLbyte *) dst;
*d = FLOAT_TO_BYTE(CLAMP(src[ACOMP], -1.0f, 1.0f));
}
/*
* MESA_FORMAT_L_SNORM8
*/
static void
pack_float_L_SNORM8(const GLfloat src[4], void *dst)
{
GLbyte *d = (GLbyte *) dst;
*d = FLOAT_TO_BYTE(CLAMP(src[RCOMP], -1.0f, 1.0f));
}
/*
* MESA_FORMAT_L8A8_SNORM
*/
static void
pack_float_L8A8_SNORM(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_A_SNORM16
*/
static void
pack_float_A_SNORM16(const GLfloat src[4], void *dst)
{
GLshort *d = (GLshort *) dst;
*d = FLOAT_TO_SHORT(CLAMP(src[ACOMP], -1.0f, 1.0f));
}
/*
* MESA_FORMAT_L_SNORM16
*/
static void
pack_float_L_SNORM16(const GLfloat src[4], void *dst)
{
GLshort *d = (GLshort *) dst;
*d = FLOAT_TO_SHORT(CLAMP(src[RCOMP], -1.0f, 1.0f));
}
/*
* MESA_FORMAT_LA_SNORM16
*/
static void
pack_float_LA_SNORM16(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_R9G9B9E5_FLOAT;
*/
static void
pack_float_R9G9B9E5_FLOAT(const GLfloat src[4], void *dst)
{
GLuint *d = (GLuint *) dst;
*d = float3_to_rgb9e5(src);
}
static void
pack_ubyte_R9G9B9E5_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_R11G11B10_FLOAT;
*/
static void
pack_ubyte_R11G11B10_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_R11G11B10_FLOAT(const GLfloat src[4], void *dst)
{
GLuint *d = (GLuint *) dst;
*d = float3_to_r11g11b10f(src);
}
/*
* MESA_FORMAT_B4G4R4X4_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_B5G5R5X1_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_R8G8B8X8_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_R8G8B8X8_SRGB
*/
static void
pack_float_R8G8B8X8_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_B10G10R10X2_UNORM */
static void
pack_ubyte_B10G10R10X2_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_B10G10R10X2_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_RGBX_UNORM16 */
static void
pack_ubyte_RGBX_UNORM16(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_RGBX_UNORM16(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_RGBX_SNORM16 */
static void
pack_float_RGBX_SNORM16(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_RGBX_FLOAT16 */
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_RGBX_FLOAT32 */
static void
pack_float_RGBX_FLOAT32(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_R10G10B10A2_UNORM */
static void
pack_ubyte_R10G10B10A2_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]);
GLushort a = UBYTE_TO_USHORT(src[ACOMP]);
*d = PACK_COLOR_2101010_US(a, b, g, r);
}
static void
pack_float_R10G10B10A2_UNORM(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_G8R8_SNORM
*/
static void
pack_float_G8R8_SNORM(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_G16R16_SNORM
*/
static void
pack_float_G16R16_SNORM(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);
}
/*
* MESA_FORMAT_B8G8R8X8_SRGB
*/
static void
pack_float_B8G8R8X8_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, r, g, b);
}
/**
* 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_A8B8G8R8_UNORM] = pack_ubyte_A8B8G8R8_UNORM;
table[MESA_FORMAT_R8G8B8A8_UNORM] = pack_ubyte_R8G8B8A8_UNORM;
table[MESA_FORMAT_B8G8R8A8_UNORM] = pack_ubyte_B8G8R8A8_UNORM;
table[MESA_FORMAT_A8R8G8B8_UNORM] = pack_ubyte_A8R8G8B8_UNORM;
table[MESA_FORMAT_X8B8G8R8_UNORM] = pack_ubyte_A8B8G8R8_UNORM; /* reused */
table[MESA_FORMAT_R8G8B8X8_UNORM] = pack_ubyte_R8G8B8A8_UNORM; /* reused */
table[MESA_FORMAT_B8G8R8X8_UNORM] = pack_ubyte_B8G8R8X8_UNORM;
table[MESA_FORMAT_X8R8G8B8_UNORM] = pack_ubyte_X8R8G8B8_UNORM;
table[MESA_FORMAT_BGR_UNORM8] = pack_ubyte_BGR_UNORM8;
table[MESA_FORMAT_RGB_UNORM8] = pack_ubyte_RGB_UNORM8;
table[MESA_FORMAT_B5G6R5_UNORM] = pack_ubyte_B5G6R5_UNORM;
table[MESA_FORMAT_R5G6B5_UNORM] = pack_ubyte_R5G6B5_UNORM;
table[MESA_FORMAT_B4G4R4A4_UNORM] = pack_ubyte_B4G4R4A4_UNORM;
table[MESA_FORMAT_A4R4G4B4_UNORM] = pack_ubyte_A4R4G4B4_UNORM;
table[MESA_FORMAT_A1B5G5R5_UNORM] = pack_ubyte_A1B5G5R5_UNORM;
table[MESA_FORMAT_B5G5R5A1_UNORM] = pack_ubyte_B5G5R5A1_UNORM;
table[MESA_FORMAT_A1R5G5B5_UNORM] = pack_ubyte_A1R5G5B5_UNORM;
table[MESA_FORMAT_L4A4_UNORM] = pack_ubyte_L4A4_UNORM;
table[MESA_FORMAT_L8A8_UNORM] = pack_ubyte_L8A8_UNORM;
table[MESA_FORMAT_A8L8_UNORM] = pack_ubyte_A8L8_UNORM;
table[MESA_FORMAT_L16A16_UNORM] = pack_ubyte_L16A16_UNORM;
table[MESA_FORMAT_A16L16_UNORM] = pack_ubyte_A16L16_UNORM;
table[MESA_FORMAT_B2G3R3_UNORM] = pack_ubyte_B2G3R3_UNORM;
table[MESA_FORMAT_A_UNORM8] = pack_ubyte_A_UNORM8;
table[MESA_FORMAT_A_UNORM16] = pack_ubyte_A_UNORM16;
table[MESA_FORMAT_L_UNORM8] = pack_ubyte_L_UNORM8;
table[MESA_FORMAT_L_UNORM16] = pack_ubyte_L_UNORM16;
table[MESA_FORMAT_I_UNORM8] = pack_ubyte_L_UNORM8; /* reuse pack_ubyte_L_UNORM8 */
table[MESA_FORMAT_I_UNORM16] = pack_ubyte_L_UNORM16; /* reuse pack_ubyte_L_UNORM16 */
table[MESA_FORMAT_YCBCR] = pack_ubyte_YCBCR;
table[MESA_FORMAT_YCBCR_REV] = pack_ubyte_YCBCR_REV;
table[MESA_FORMAT_R_UNORM8] = pack_ubyte_R_UNORM8;
table[MESA_FORMAT_R8G8_UNORM] = pack_ubyte_R8G8_UNORM;
table[MESA_FORMAT_G8R8_UNORM] = pack_ubyte_G8R8_UNORM;
table[MESA_FORMAT_R_UNORM16] = pack_ubyte_R_UNORM16;
table[MESA_FORMAT_R16G16_UNORM] = pack_ubyte_R16G16_UNORM;
table[MESA_FORMAT_G16R16_UNORM] = pack_ubyte_G16R16_UNORM;
table[MESA_FORMAT_B10G10R10A2_UNORM] = pack_ubyte_B10G10R10A2_UNORM;
table[MESA_FORMAT_R10G10B10A2_UINT] = pack_ubyte_R10G10B10A2_UINT;
/* should never convert RGBA to these formats */
table[MESA_FORMAT_S8_UINT_Z24_UNORM] = NULL;
table[MESA_FORMAT_Z24_UNORM_S8_UINT] = NULL;
table[MESA_FORMAT_Z_UNORM16] = NULL;
table[MESA_FORMAT_Z24_UNORM_X8_UINT] = NULL;
table[MESA_FORMAT_X8_UINT_Z24_UNORM] = NULL;
table[MESA_FORMAT_Z_UNORM32] = NULL;
table[MESA_FORMAT_S_UINT8] = NULL;
/* sRGB */
table[MESA_FORMAT_BGR_SRGB8] = pack_ubyte_BGR_SRGB8;
table[MESA_FORMAT_A8B8G8R8_SRGB] = pack_ubyte_A8B8G8R8_SRGB;
table[MESA_FORMAT_B8G8R8A8_SRGB] = pack_ubyte_B8G8R8A8_SRGB;
table[MESA_FORMAT_R8G8B8A8_SRGB] = pack_ubyte_R8G8B8A8_SRGB;
table[MESA_FORMAT_L_SRGB8] = pack_ubyte_L_SRGB8;
table[MESA_FORMAT_L8A8_SRGB] = pack_ubyte_L8A8_SRGB;
/* 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_A_FLOAT32] = pack_ubyte_A_FLOAT32;
table[MESA_FORMAT_A_FLOAT16] = pack_ubyte_A_FLOAT16;
table[MESA_FORMAT_L_FLOAT32] = pack_ubyte_L_FLOAT32;
table[MESA_FORMAT_L_FLOAT16] = pack_ubyte_L_FLOAT16;
table[MESA_FORMAT_LA_FLOAT32] = pack_ubyte_LA_FLOAT32;
table[MESA_FORMAT_LA_FLOAT16] = pack_ubyte_LA_FLOAT16;
table[MESA_FORMAT_I_FLOAT32] = pack_ubyte_L_FLOAT32;
table[MESA_FORMAT_I_FLOAT16] = pack_ubyte_L_FLOAT16;
table[MESA_FORMAT_R_FLOAT32] = pack_ubyte_L_FLOAT32;
table[MESA_FORMAT_R_FLOAT16] = pack_ubyte_L_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_SINT8] = NULL; /* pack_ubyte_RGBA_INT8 */
table[MESA_FORMAT_RGBA_SINT16] = NULL; /* pack_ubyte_RGBA_INT16 */
table[MESA_FORMAT_RGBA_SINT32] = 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_RGBA_UNORM16] = pack_ubyte_RGBA_16;
/* n/a */
table[MESA_FORMAT_R_SNORM8] = NULL;
table[MESA_FORMAT_R8G8_SNORM] = NULL;
table[MESA_FORMAT_X8B8G8R8_SNORM] = NULL;
table[MESA_FORMAT_A8B8G8R8_SNORM] = NULL;
table[MESA_FORMAT_R8G8B8A8_SNORM] = NULL;
table[MESA_FORMAT_R_SNORM16] = NULL;
table[MESA_FORMAT_R16G16_SNORM] = NULL;
table[MESA_FORMAT_RGB_SNORM16] = NULL;
table[MESA_FORMAT_RGBA_SNORM16] = NULL;
table[MESA_FORMAT_A_SNORM8] = NULL;
table[MESA_FORMAT_L_SNORM8] = NULL;
table[MESA_FORMAT_L8A8_SNORM] = NULL;
table[MESA_FORMAT_I_SNORM8] = NULL;
table[MESA_FORMAT_A_SNORM16] = NULL;
table[MESA_FORMAT_L_SNORM16] = NULL;
table[MESA_FORMAT_LA_SNORM16] = NULL;
table[MESA_FORMAT_I_SNORM16] = NULL;
table[MESA_FORMAT_RGBA_UNORM16] = pack_ubyte_RGBA_16;
table[MESA_FORMAT_R9G9B9E5_FLOAT] = pack_ubyte_R9G9B9E5_FLOAT;
table[MESA_FORMAT_R11G11B10_FLOAT] = pack_ubyte_R11G11B10_FLOAT;
table[MESA_FORMAT_B4G4R4X4_UNORM] = pack_ubyte_XRGB4444_UNORM;
table[MESA_FORMAT_B5G5R5X1_UNORM] = pack_ubyte_XRGB1555_UNORM;
table[MESA_FORMAT_R8G8B8X8_SNORM] = NULL;
table[MESA_FORMAT_R8G8B8X8_SRGB] = NULL;
table[MESA_FORMAT_RGBX_UINT8] = NULL;
table[MESA_FORMAT_RGBX_SINT8] = NULL;
table[MESA_FORMAT_B10G10R10X2_UNORM] = pack_ubyte_B10G10R10X2_UNORM;
table[MESA_FORMAT_RGBX_UNORM16] = pack_ubyte_RGBX_UNORM16;
table[MESA_FORMAT_RGBX_SNORM16] = NULL;
table[MESA_FORMAT_RGBX_FLOAT16] = NULL;
table[MESA_FORMAT_RGBX_UINT16] = NULL;
table[MESA_FORMAT_RGBX_SINT16] = NULL;
table[MESA_FORMAT_RGBX_FLOAT32] = NULL;
table[MESA_FORMAT_RGBX_UINT32] = NULL;
table[MESA_FORMAT_RGBX_SINT32] = NULL;
table[MESA_FORMAT_R10G10B10A2_UNORM] = pack_ubyte_R10G10B10A2_UNORM;
table[MESA_FORMAT_B8G8R8X8_SRGB] = NULL;
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_A8B8G8R8_UNORM] = pack_float_A8B8G8R8_UNORM;
table[MESA_FORMAT_R8G8B8A8_UNORM] = pack_float_R8G8B8A8_UNORM;
table[MESA_FORMAT_B8G8R8A8_UNORM] = pack_float_B8G8R8A8_UNORM;
table[MESA_FORMAT_A8R8G8B8_UNORM] = pack_float_A8R8G8B8_UNORM;
table[MESA_FORMAT_X8B8G8R8_UNORM] = pack_float_A8B8G8R8_UNORM; /* reused */
table[MESA_FORMAT_R8G8B8X8_UNORM] = pack_float_R8G8B8A8_UNORM; /* reused */
table[MESA_FORMAT_B8G8R8X8_UNORM] = pack_float_B8G8R8X8_UNORM;
table[MESA_FORMAT_X8R8G8B8_UNORM] = pack_float_X8R8G8B8_UNORM;
table[MESA_FORMAT_BGR_UNORM8] = pack_float_BGR_UNORM8;
table[MESA_FORMAT_RGB_UNORM8] = pack_float_RGB_UNORM8;
table[MESA_FORMAT_B5G6R5_UNORM] = pack_float_B5G6R5_UNORM;
table[MESA_FORMAT_R5G6B5_UNORM] = pack_float_R5G6B5_UNORM;
table[MESA_FORMAT_B4G4R4A4_UNORM] = pack_float_B4G4R4A4_UNORM;
table[MESA_FORMAT_A4R4G4B4_UNORM] = pack_float_A4R4G4B4_UNORM;
table[MESA_FORMAT_A1B5G5R5_UNORM] = pack_float_A1B5G5R5_UNORM;
table[MESA_FORMAT_B5G5R5A1_UNORM] = pack_float_B5G5R5A1_UNORM;
table[MESA_FORMAT_A1R5G5B5_UNORM] = pack_float_A1R5G5B5_UNORM;
table[MESA_FORMAT_L4A4_UNORM] = pack_float_L4A4_UNORM;
table[MESA_FORMAT_L8A8_UNORM] = pack_float_L8A8_UNORM;
table[MESA_FORMAT_A8L8_UNORM] = pack_float_A8L8_UNORM;
table[MESA_FORMAT_L16A16_UNORM] = pack_float_L16A16_UNORM;
table[MESA_FORMAT_A16L16_UNORM] = pack_float_A16L16_UNORM;
table[MESA_FORMAT_B2G3R3_UNORM] = pack_float_B2G3R3_UNORM;
table[MESA_FORMAT_A_UNORM8] = pack_float_A_UNORM8;
table[MESA_FORMAT_A_UNORM16] = pack_float_A_UNORM16;
table[MESA_FORMAT_L_UNORM8] = pack_float_L_UNORM8;
table[MESA_FORMAT_L_UNORM16] = pack_float_L_UNORM16;
table[MESA_FORMAT_I_UNORM8] = pack_float_L_UNORM8; /* reuse pack_float_L_UNORM8 */
table[MESA_FORMAT_I_UNORM16] = pack_float_L_UNORM16; /* reuse pack_float_L_UNORM16 */
table[MESA_FORMAT_YCBCR] = pack_float_YCBCR;
table[MESA_FORMAT_YCBCR_REV] = pack_float_YCBCR_REV;
table[MESA_FORMAT_R_UNORM8] = pack_float_R_UNORM8;
table[MESA_FORMAT_R8G8_UNORM] = pack_float_R8G8_UNORM;
table[MESA_FORMAT_G8R8_UNORM] = pack_float_G8R8_UNORM;
table[MESA_FORMAT_R_UNORM16] = pack_float_R_UNORM16;
table[MESA_FORMAT_R16G16_UNORM] = pack_float_R16G16_UNORM;
table[MESA_FORMAT_G16R16_UNORM] = pack_float_G16R16_UNORM;
table[MESA_FORMAT_B10G10R10A2_UNORM] = pack_float_B10G10R10A2_UNORM;
table[MESA_FORMAT_R10G10B10A2_UINT] = pack_float_R10G10B10A2_UINT;
/* should never convert RGBA to these formats */
table[MESA_FORMAT_S8_UINT_Z24_UNORM] = NULL;
table[MESA_FORMAT_Z24_UNORM_S8_UINT] = NULL;
table[MESA_FORMAT_Z_UNORM16] = NULL;
table[MESA_FORMAT_Z24_UNORM_X8_UINT] = NULL;
table[MESA_FORMAT_X8_UINT_Z24_UNORM] = NULL;
table[MESA_FORMAT_Z_UNORM32] = NULL;
table[MESA_FORMAT_S_UINT8] = NULL;
table[MESA_FORMAT_BGR_SRGB8] = pack_float_BGR_SRGB8;
table[MESA_FORMAT_A8B8G8R8_SRGB] = pack_float_A8B8G8R8_SRGB;
table[MESA_FORMAT_B8G8R8A8_SRGB] = pack_float_B8G8R8A8_SRGB;
table[MESA_FORMAT_R8G8B8A8_SRGB] = pack_float_R8G8B8A8_SRGB;
table[MESA_FORMAT_L_SRGB8] = pack_float_L_SRGB8;
table[MESA_FORMAT_L8A8_SRGB] = pack_float_L8A8_SRGB;
/* 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_A_FLOAT32] = pack_float_A_FLOAT32;
table[MESA_FORMAT_A_FLOAT16] = pack_float_A_FLOAT16;
table[MESA_FORMAT_L_FLOAT32] = pack_float_L_FLOAT32;
table[MESA_FORMAT_L_FLOAT16] = pack_float_L_FLOAT16;
table[MESA_FORMAT_LA_FLOAT32] = pack_float_LA_FLOAT32;
table[MESA_FORMAT_LA_FLOAT16] = pack_float_LA_FLOAT16;
table[MESA_FORMAT_I_FLOAT32] = pack_float_L_FLOAT32;
table[MESA_FORMAT_I_FLOAT16] = pack_float_L_FLOAT16;
table[MESA_FORMAT_R_FLOAT32] = pack_float_L_FLOAT32;
table[MESA_FORMAT_R_FLOAT16] = pack_float_L_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_SINT8] = NULL;
table[MESA_FORMAT_RGBA_SINT16] = NULL;
table[MESA_FORMAT_RGBA_SINT32] = NULL;
table[MESA_FORMAT_RGBA_UINT8] = NULL;
table[MESA_FORMAT_RGBA_UINT16] = NULL;
table[MESA_FORMAT_RGBA_UINT32] = NULL;
table[MESA_FORMAT_RGBA_UNORM16] = pack_float_RGBA_16;
table[MESA_FORMAT_R_SNORM8] = pack_float_R_SNORM8;
table[MESA_FORMAT_R8G8_SNORM] = pack_float_R8G8_SNORM;
table[MESA_FORMAT_X8B8G8R8_SNORM] = pack_float_X8B8G8R8_SNORM;
table[MESA_FORMAT_A8B8G8R8_SNORM] = pack_float_A8B8G8R8_SNORM;
table[MESA_FORMAT_R8G8B8A8_SNORM] = pack_float_R8G8B8A8_SNORM;
table[MESA_FORMAT_R_SNORM16] = pack_float_R_SNORM16;
table[MESA_FORMAT_R16G16_SNORM] = pack_float_R16G16_SNORM;
table[MESA_FORMAT_RGB_SNORM16] = pack_float_RGB_SNORM16;
table[MESA_FORMAT_RGBA_SNORM16] = pack_float_RGBA_SNORM16;
table[MESA_FORMAT_A_SNORM8] = pack_float_A_SNORM8;
table[MESA_FORMAT_L_SNORM8] = pack_float_L_SNORM8;
table[MESA_FORMAT_L8A8_SNORM] = pack_float_L8A8_SNORM;
table[MESA_FORMAT_I_SNORM8] = pack_float_L_SNORM8; /* reused */
table[MESA_FORMAT_A_SNORM16] = pack_float_A_SNORM16;
table[MESA_FORMAT_L_SNORM16] = pack_float_L_SNORM16;
table[MESA_FORMAT_LA_SNORM16] = pack_float_LA_SNORM16;
table[MESA_FORMAT_I_SNORM16] = pack_float_L_SNORM16; /* reused */
table[MESA_FORMAT_R9G9B9E5_FLOAT] = pack_float_R9G9B9E5_FLOAT;
table[MESA_FORMAT_R11G11B10_FLOAT] = pack_float_R11G11B10_FLOAT;
table[MESA_FORMAT_B4G4R4X4_UNORM] = pack_float_XRGB4444_UNORM;
table[MESA_FORMAT_B5G5R5X1_UNORM] = pack_float_XRGB1555_UNORM;
table[MESA_FORMAT_R8G8B8X8_SNORM] = pack_float_XBGR8888_SNORM;
table[MESA_FORMAT_R8G8B8X8_SRGB] = pack_float_R8G8B8X8_SRGB;
table[MESA_FORMAT_RGBX_UINT8] = NULL;
table[MESA_FORMAT_RGBX_SINT8] = NULL;
table[MESA_FORMAT_B10G10R10X2_UNORM] = pack_float_B10G10R10X2_UNORM;
table[MESA_FORMAT_RGBX_UNORM16] = pack_float_RGBX_UNORM16;
table[MESA_FORMAT_RGBX_SNORM16] = pack_float_RGBX_SNORM16;
table[MESA_FORMAT_RGBX_FLOAT16] = pack_float_XBGR16161616_FLOAT;
table[MESA_FORMAT_RGBX_UINT16] = NULL;
table[MESA_FORMAT_RGBX_SINT16] = NULL;
table[MESA_FORMAT_RGBX_FLOAT32] = pack_float_RGBX_FLOAT32;
table[MESA_FORMAT_RGBX_UINT32] = NULL;
table[MESA_FORMAT_RGBX_SINT32] = NULL;
table[MESA_FORMAT_R10G10B10A2_UNORM] = pack_float_R10G10B10A2_UNORM;
table[MESA_FORMAT_G8R8_SNORM] = pack_float_G8R8_SNORM;
table[MESA_FORMAT_G16R16_SNORM] = pack_float_G16R16_SNORM;
table[MESA_FORMAT_B8G8R8X8_SRGB] = pack_float_B8G8R8X8_SRGB;
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_A8B8G8R8_UNORM] = pack_row_float_A8B8G8R8_UNORM;
table[MESA_FORMAT_R8G8B8A8_UNORM] = pack_row_float_R8G8B8A8_UNORM;
table[MESA_FORMAT_B8G8R8A8_UNORM] = pack_row_float_B8G8R8A8_UNORM;
table[MESA_FORMAT_A8R8G8B8_UNORM] = pack_row_float_A8R8G8B8_UNORM;
table[MESA_FORMAT_X8B8G8R8_UNORM] = pack_row_float_A8B8G8R8_UNORM; /* reused */
table[MESA_FORMAT_R8G8B8X8_UNORM] = pack_row_float_R8G8B8A8_UNORM; /* reused */
table[MESA_FORMAT_B8G8R8X8_UNORM] = pack_row_float_B8G8R8X8_UNORM;
table[MESA_FORMAT_X8R8G8B8_UNORM] = pack_row_float_X8R8G8B8_UNORM;
table[MESA_FORMAT_BGR_UNORM8] = pack_row_float_BGR_UNORM8;
table[MESA_FORMAT_RGB_UNORM8] = pack_row_float_RGB_UNORM8;
table[MESA_FORMAT_B5G6R5_UNORM] = pack_row_float_B5G6R5_UNORM;
table[MESA_FORMAT_R5G6B5_UNORM] = pack_row_float_R5G6B5_UNORM;
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_A8B8G8R8_UNORM] = pack_row_ubyte_A8B8G8R8_UNORM;
table[MESA_FORMAT_R8G8B8A8_UNORM] = pack_row_ubyte_R8G8B8A8_UNORM;
table[MESA_FORMAT_B8G8R8A8_UNORM] = pack_row_ubyte_B8G8R8A8_UNORM;
table[MESA_FORMAT_A8R8G8B8_UNORM] = pack_row_ubyte_A8R8G8B8_UNORM;
table[MESA_FORMAT_X8B8G8R8_UNORM] = pack_row_ubyte_A8B8G8R8_UNORM; /* reused */
table[MESA_FORMAT_R8G8B8X8_UNORM] = pack_row_ubyte_R8G8B8A8_UNORM; /* reused */
table[MESA_FORMAT_B8G8R8X8_UNORM] = pack_row_ubyte_B8G8R8X8_UNORM;
table[MESA_FORMAT_X8R8G8B8_UNORM] = pack_row_ubyte_X8R8G8B8_UNORM;
table[MESA_FORMAT_BGR_UNORM8] = pack_row_ubyte_BGR_UNORM8;
table[MESA_FORMAT_RGB_UNORM8] = pack_row_ubyte_RGB_UNORM8;
table[MESA_FORMAT_B5G6R5_UNORM] = pack_row_ubyte_B5G6R5_UNORM;
table[MESA_FORMAT_R5G6B5_UNORM] = pack_row_ubyte_R5G6B5_UNORM;
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_S8_UINT_Z24_UNORM(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_Z24_UNORM_S8_UINT(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_UNORM16(const GLfloat *src, void *dst)
{
GLushort *d = ((GLushort *) dst);
const GLfloat scale = (GLfloat) 0xffff;
*d = (GLushort) (*src * scale);
}
static void
pack_float_Z_UNORM32(const GLfloat *src, void *dst)
{
GLuint *d = ((GLuint *) dst);
const GLdouble scale = (GLdouble) 0xffffffff;
*d = (GLuint) (*src * scale);
}
static void
pack_float_Z_FLOAT32(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_S8_UINT_Z24_UNORM:
case MESA_FORMAT_X8_UINT_Z24_UNORM:
return pack_float_S8_UINT_Z24_UNORM;
case MESA_FORMAT_Z24_UNORM_S8_UINT:
case MESA_FORMAT_Z24_UNORM_X8_UINT:
return pack_float_Z24_UNORM_S8_UINT;
case MESA_FORMAT_Z_UNORM16:
return pack_float_Z_UNORM16;
case MESA_FORMAT_Z_UNORM32:
return pack_float_Z_UNORM32;
case MESA_FORMAT_Z_FLOAT32:
case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
return pack_float_Z_FLOAT32;
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_S8_UINT_Z24_UNORM(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_Z24_UNORM_S8_UINT(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_UNORM16(const GLuint *src, void *dst)
{
GLushort *d = ((GLushort *) dst);
*d = *src >> 16;
}
static void
pack_uint_Z_UNORM32(const GLuint *src, void *dst)
{
GLuint *d = ((GLuint *) dst);
*d = *src;
}
static void
pack_uint_Z_FLOAT32(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_FLOAT32_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_S8_UINT_Z24_UNORM:
case MESA_FORMAT_X8_UINT_Z24_UNORM:
return pack_uint_S8_UINT_Z24_UNORM;
case MESA_FORMAT_Z24_UNORM_S8_UINT:
case MESA_FORMAT_Z24_UNORM_X8_UINT:
return pack_uint_Z24_UNORM_S8_UINT;
case MESA_FORMAT_Z_UNORM16:
return pack_uint_Z_UNORM16;
case MESA_FORMAT_Z_UNORM32:
return pack_uint_Z_UNORM32;
case MESA_FORMAT_Z_FLOAT32:
return pack_uint_Z_FLOAT32;
case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
return pack_uint_Z_FLOAT32_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_S8_UINT_Z24_UNORM:
return pack_ubyte_stencil_Z24_S8;
case MESA_FORMAT_Z24_UNORM_S8_UINT:
return pack_ubyte_stencil_S8_Z24;
case MESA_FORMAT_S_UINT8:
return pack_ubyte_stencil_S8;
case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
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_S8_UINT_Z24_UNORM:
case MESA_FORMAT_X8_UINT_Z24_UNORM:
{
/* 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_Z24_UNORM_S8_UINT:
case MESA_FORMAT_Z24_UNORM_X8_UINT:
{
/* 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_Z_UNORM16:
{
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_Z_UNORM32:
{
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_Z_FLOAT32:
memcpy(dst, src, n * sizeof(GLfloat));
break;
case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
{
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_S8_UINT_Z24_UNORM:
case MESA_FORMAT_X8_UINT_Z24_UNORM:
{
/* 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_Z24_UNORM_S8_UINT:
case MESA_FORMAT_Z24_UNORM_X8_UINT:
{
/* 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_Z_UNORM16:
{
GLushort *d = ((GLushort *) dst);
GLuint i;
for (i = 0; i < n; i++) {
d[i] = src[i] >> 16;
}
}
break;
case MESA_FORMAT_Z_UNORM32:
memcpy(dst, src, n * sizeof(GLfloat));
break;
case MESA_FORMAT_Z_FLOAT32:
{
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_S8X24_UINT:
{
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_S8_UINT_Z24_UNORM:
{
/* 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_Z24_UNORM_S8_UINT:
{
/* 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_S_UINT8:
memcpy(dst, src, n * sizeof(GLubyte));
break;
case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
{
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_S8_UINT_Z24_UNORM:
memcpy(dst, src, n * sizeof(GLuint));
break;
case MESA_FORMAT_Z24_UNORM_S8_UINT:
{
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_S8X24_UINT:
{
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;
}
}