#include "pipe/p_compiler.h"
#include "pipe/p_format.h"
+#include "util/u_debug.h"
#include "util/u_format.h"
#include "util/u_math.h"
-
+/**
+ * Helper union for packing pixel values.
+ * Will often contain values in formats which are too complex to be described
+ * in simple terms, hence might just effectively contain a number of bytes.
+ * Must be big enough to hold data for all formats (currently 256 bits).
+ */
union util_color {
ubyte ub;
ushort us;
uint ui;
float f[4];
+ double d[4];
};
/**
enum pipe_format format, union util_color *uc)
{
switch (format) {
- case PIPE_FORMAT_R8G8B8A8_UNORM_REV:
+ case PIPE_FORMAT_A8B8G8R8_UNORM:
{
uc->ui = (r << 24) | (g << 16) | (b << 8) | a;
}
return;
- case PIPE_FORMAT_R8G8B8X8_UNORM:
+ case PIPE_FORMAT_X8B8G8R8_UNORM:
{
uc->ui = (r << 24) | (g << 16) | (b << 8) | 0xff;
}
return;
- case PIPE_FORMAT_A8R8G8B8_UNORM:
+ case PIPE_FORMAT_B8G8R8A8_UNORM:
{
uc->ui = (a << 24) | (r << 16) | (g << 8) | b;
}
return;
- case PIPE_FORMAT_X8R8G8B8_UNORM:
+ case PIPE_FORMAT_B8G8R8X8_UNORM:
{
uc->ui = (0xff << 24) | (r << 16) | (g << 8) | b;
}
return;
- case PIPE_FORMAT_B8G8R8A8_UNORM:
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
{
uc->ui = (b << 24) | (g << 16) | (r << 8) | a;
}
return;
- case PIPE_FORMAT_B8G8R8X8_UNORM:
+ case PIPE_FORMAT_X8R8G8B8_UNORM:
{
uc->ui = (b << 24) | (g << 16) | (r << 8) | 0xff;
}
return;
- case PIPE_FORMAT_R5G6B5_UNORM:
+ case PIPE_FORMAT_B5G6R5_UNORM:
{
uc->us = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | (b >> 3);
}
return;
- case PIPE_FORMAT_A1R5G5B5_UNORM:
+ case PIPE_FORMAT_B5G5R5X1_UNORM:
+ {
+ uc->us = ((0x80) << 8) | ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | (b >> 3);
+ }
+ return;
+ case PIPE_FORMAT_B5G5R5A1_UNORM:
{
uc->us = ((a & 0x80) << 8) | ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | (b >> 3);
}
return;
- case PIPE_FORMAT_A4R4G4B4_UNORM:
+ case PIPE_FORMAT_B4G4R4A4_UNORM:
{
uc->us = ((a & 0xf0) << 8) | ((r & 0xf0) << 4) | ((g & 0xf0) << 0) | (b >> 4);
}
ubyte *r, ubyte *g, ubyte *b, ubyte *a)
{
switch (format) {
- case PIPE_FORMAT_R8G8B8A8_UNORM_REV:
+ case PIPE_FORMAT_A8B8G8R8_UNORM:
{
uint p = uc->ui;
*r = (ubyte) ((p >> 24) & 0xff);
*a = (ubyte) ((p >> 0) & 0xff);
}
return;
- case PIPE_FORMAT_R8G8B8X8_UNORM:
+ case PIPE_FORMAT_X8B8G8R8_UNORM:
{
uint p = uc->ui;
*r = (ubyte) ((p >> 24) & 0xff);
*a = (ubyte) 0xff;
}
return;
- case PIPE_FORMAT_A8R8G8B8_UNORM:
+ case PIPE_FORMAT_B8G8R8A8_UNORM:
{
uint p = uc->ui;
*r = (ubyte) ((p >> 16) & 0xff);
*a = (ubyte) ((p >> 24) & 0xff);
}
return;
- case PIPE_FORMAT_X8R8G8B8_UNORM:
+ case PIPE_FORMAT_B8G8R8X8_UNORM:
{
uint p = uc->ui;
*r = (ubyte) ((p >> 16) & 0xff);
*a = (ubyte) 0xff;
}
return;
- case PIPE_FORMAT_B8G8R8A8_UNORM:
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
{
uint p = uc->ui;
*r = (ubyte) ((p >> 8) & 0xff);
*a = (ubyte) ((p >> 0) & 0xff);
}
return;
- case PIPE_FORMAT_B8G8R8X8_UNORM:
+ case PIPE_FORMAT_X8R8G8B8_UNORM:
{
uint p = uc->ui;
*r = (ubyte) ((p >> 8) & 0xff);
*a = (ubyte) 0xff;
}
return;
- case PIPE_FORMAT_R5G6B5_UNORM:
+ case PIPE_FORMAT_B5G6R5_UNORM:
{
ushort p = uc->us;
*r = (ubyte) (((p >> 8) & 0xf8) | ((p >> 13) & 0x7));
*a = (ubyte) 0xff;
}
return;
- case PIPE_FORMAT_A1R5G5B5_UNORM:
+ case PIPE_FORMAT_B5G5R5X1_UNORM:
+ {
+ ushort p = uc->us;
+ *r = (ubyte) (((p >> 7) & 0xf8) | ((p >> 12) & 0x7));
+ *g = (ubyte) (((p >> 2) & 0xf8) | ((p >> 7) & 0x7));
+ *b = (ubyte) (((p << 3) & 0xf8) | ((p >> 2) & 0x7));
+ *a = (ubyte) 0xff;
+ }
+ return;
+ case PIPE_FORMAT_B5G5R5A1_UNORM:
{
ushort p = uc->us;
*r = (ubyte) (((p >> 7) & 0xf8) | ((p >> 12) & 0x7));
*a = (ubyte) (0xff * (p >> 15));
}
return;
- case PIPE_FORMAT_A4R4G4B4_UNORM:
+ case PIPE_FORMAT_B4G4R4A4_UNORM:
{
ushort p = uc->us;
*r = (ubyte) (((p >> 4) & 0xf0) | ((p >> 8) & 0xf));
}
switch (format) {
- case PIPE_FORMAT_R8G8B8A8_UNORM_REV:
+ case PIPE_FORMAT_A8B8G8R8_UNORM:
{
uc->ui = (r << 24) | (g << 16) | (b << 8) | a;
}
return;
- case PIPE_FORMAT_R8G8B8X8_UNORM:
+ case PIPE_FORMAT_X8B8G8R8_UNORM:
{
uc->ui = (r << 24) | (g << 16) | (b << 8) | 0xff;
}
return;
- case PIPE_FORMAT_A8R8G8B8_UNORM:
+ case PIPE_FORMAT_B8G8R8A8_UNORM:
{
uc->ui = (a << 24) | (r << 16) | (g << 8) | b;
}
return;
- case PIPE_FORMAT_X8R8G8B8_UNORM:
+ case PIPE_FORMAT_B8G8R8X8_UNORM:
{
uc->ui = (0xff << 24) | (r << 16) | (g << 8) | b;
}
return;
- case PIPE_FORMAT_B8G8R8A8_UNORM:
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
{
uc->ui = (b << 24) | (g << 16) | (r << 8) | a;
}
return;
- case PIPE_FORMAT_B8G8R8X8_UNORM:
+ case PIPE_FORMAT_X8R8G8B8_UNORM:
{
uc->ui = (b << 24) | (g << 16) | (r << 8) | 0xff;
}
return;
- case PIPE_FORMAT_R5G6B5_UNORM:
+ case PIPE_FORMAT_B5G6R5_UNORM:
{
uc->us = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | (b >> 3);
}
return;
- case PIPE_FORMAT_A1R5G5B5_UNORM:
+ case PIPE_FORMAT_B5G5R5X1_UNORM:
+ {
+ uc->us = ((0x80) << 8) | ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | (b >> 3);
+ }
+ return;
+ case PIPE_FORMAT_B5G5R5A1_UNORM:
{
uc->us = ((a & 0x80) << 8) | ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | (b >> 3);
}
return;
- case PIPE_FORMAT_A4R4G4B4_UNORM:
+ case PIPE_FORMAT_B4G4R4A4_UNORM:
{
- uc->ub = ((a & 0xf0) << 8) | ((r & 0xf0) << 4) | ((g & 0xf0) << 0) | (b >> 4);
+ uc->us = ((a & 0xf0) << 8) | ((r & 0xf0) << 4) | ((g & 0xf0) << 0) | (b >> 4);
}
return;
case PIPE_FORMAT_A8_UNORM:
}
}
+/* Integer versions of util_pack_z and util_pack_z_stencil - useful for
+ * constructing clear masks.
+ */
+static INLINE uint32_t
+util_pack_mask_z(enum pipe_format format, uint32_t z)
+{
+ switch (format) {
+ case PIPE_FORMAT_Z16_UNORM:
+ return z & 0xffff;
+ case PIPE_FORMAT_Z32_UNORM:
+ case PIPE_FORMAT_Z32_FLOAT:
+ return z;
+ case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+ case PIPE_FORMAT_Z24X8_UNORM:
+ return z & 0xffffff;
+ case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+ case PIPE_FORMAT_X8Z24_UNORM:
+ return (z & 0xffffff) << 8;
+ case PIPE_FORMAT_S8_USCALED:
+ return 0;
+ default:
+ debug_print_format("gallium: unhandled format in util_pack_mask_z()", format);
+ assert(0);
+ return 0;
+ }
+}
+
+static INLINE uint32_t
+util_pack_mask_z_stencil(enum pipe_format format, uint32_t z, uint8_t s)
+{
+ uint32_t packed = util_pack_mask_z(format, z);
+
+ switch (format) {
+ case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+ packed |= (uint32_t)s << 24;
+ break;
+ case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+ packed |= s;
+ break;
+ case PIPE_FORMAT_S8_USCALED:
+ packed |= s;
+ break;
+ default:
+ break;
+ }
+
+ return packed;
+}
+
+
/**
* Note: it's assumed that z is in [0,1]
*/
-static INLINE uint
+static INLINE uint32_t
util_pack_z(enum pipe_format format, double z)
{
+ union fi fui;
+
if (z == 0.0)
return 0;
case PIPE_FORMAT_Z16_UNORM:
if (z == 1.0)
return 0xffff;
- return (uint) (z * 0xffff);
+ return (uint32_t) (z * 0xffff);
case PIPE_FORMAT_Z32_UNORM:
/* special-case to avoid overflow */
if (z == 1.0)
return 0xffffffff;
- return (uint) (z * 0xffffffff);
+ return (uint32_t) (z * 0xffffffff);
case PIPE_FORMAT_Z32_FLOAT:
- return (uint)z;
- case PIPE_FORMAT_S8Z24_UNORM:
- case PIPE_FORMAT_X8Z24_UNORM:
+ fui.f = (float)z;
+ return fui.ui;
+ case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+ case PIPE_FORMAT_Z24X8_UNORM:
if (z == 1.0)
return 0xffffff;
- return (uint) (z * 0xffffff);
- case PIPE_FORMAT_Z24S8_UNORM:
- case PIPE_FORMAT_Z24X8_UNORM:
+ return (uint32_t) (z * 0xffffff);
+ case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+ case PIPE_FORMAT_X8Z24_UNORM:
if (z == 1.0)
return 0xffffff00;
- return ((uint) (z * 0xffffff)) << 8;
- case PIPE_FORMAT_S8_UNORM:
+ return ((uint32_t) (z * 0xffffff)) << 8;
+ case PIPE_FORMAT_S8_USCALED:
/* this case can get it via util_pack_z_stencil() */
return 0;
default:
* Pack Z and/or stencil values into a 32-bit value described by format.
* Note: it's assumed that z is in [0,1] and s in [0,255]
*/
-static INLINE uint
-util_pack_z_stencil(enum pipe_format format, double z, uint s)
+static INLINE uint32_t
+util_pack_z_stencil(enum pipe_format format, double z, uint8_t s)
{
- unsigned packed = util_pack_z(format, z);
+ uint32_t packed = util_pack_z(format, z);
switch (format) {
- case PIPE_FORMAT_S8Z24_UNORM:
- packed |= s << 24;
+ case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+ packed |= (uint32_t)s << 24;
break;
- case PIPE_FORMAT_Z24S8_UNORM:
+ case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
packed |= s;
break;
- case PIPE_FORMAT_S8_UNORM:
+ case PIPE_FORMAT_S8_USCALED:
packed |= s;
break;
default:
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