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Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_format.h')
-rw-r--r--mesalib/src/gallium/auxiliary/util/u_format.h86
1 files changed, 85 insertions, 1 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_format.h b/mesalib/src/gallium/auxiliary/util/u_format.h
index 98528ea59..215a00ab5 100644
--- a/mesalib/src/gallium/auxiliary/util/u_format.h
+++ b/mesalib/src/gallium/auxiliary/util/u_format.h
@@ -120,8 +120,9 @@ enum util_format_colorspace {
struct util_format_channel_description
{
- unsigned type:6; /**< UTIL_FORMAT_TYPE_x */
+ unsigned type:5; /**< UTIL_FORMAT_TYPE_x */
unsigned normalized:1;
+ unsigned pure_integer:1;
unsigned size:9; /**< bits per channel */
};
@@ -321,6 +322,37 @@ struct util_format_description
const uint8_t *src, unsigned src_stride,
unsigned width, unsigned height);
+ /**
+ * Unpack pixel blocks to R32G32B32A32_UINT.
+ * Note: strides are in bytes.
+ *
+ * Only defined for INT formats.
+ */
+ void
+ (*unpack_rgba_uint)(unsigned *dst, unsigned dst_stride,
+ const uint8_t *src, unsigned src_stride,
+ unsigned width, unsigned height);
+
+ void
+ (*pack_rgba_uint)(uint8_t *dst, unsigned dst_stride,
+ const unsigned *src, unsigned src_stride,
+ unsigned width, unsigned height);
+
+ /**
+ * Unpack pixel blocks to R32G32B32A32_SINT.
+ * Note: strides are in bytes.
+ *
+ * Only defined for INT formats.
+ */
+ void
+ (*unpack_rgba_sint)(signed *dst, unsigned dst_stride,
+ const uint8_t *src, unsigned src_stride,
+ unsigned width, unsigned height);
+
+ void
+ (*pack_rgba_sint)(uint8_t *dst, unsigned dst_stride,
+ const int *src, unsigned src_stride,
+ unsigned width, unsigned height);
};
@@ -511,6 +543,14 @@ util_format_is_luminance_alpha(enum pipe_format format);
boolean
util_format_is_intensity(enum pipe_format format);
+boolean
+util_format_is_pure_integer(enum pipe_format format);
+
+boolean
+util_format_is_pure_sint(enum pipe_format format);
+
+boolean
+util_format_is_pure_uint(enum pipe_format format);
/**
* Whether the src format can be blitted to destation format with a simple
@@ -806,6 +846,26 @@ util_format_get_nr_components(enum pipe_format format)
return desc->nr_channels;
}
+/**
+ * Return the index of the first non-void channel
+ * -1 if no non-void channels
+ */
+static INLINE int
+util_format_get_first_non_void_channel(enum pipe_format format)
+{
+ const struct util_format_description *desc = util_format_description(format);
+ int i;
+
+ for (i = 0; i < 4; i++)
+ if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID)
+ break;
+
+ if (i == 4)
+ return -1;
+
+ return i;
+}
+
/*
* Format access functions.
*/
@@ -834,6 +894,30 @@ util_format_write_4ub(enum pipe_format format,
void *dst, unsigned dst_stride,
unsigned x, unsigned y, unsigned w, unsigned h);
+void
+util_format_read_4ui(enum pipe_format format,
+ unsigned *dst, unsigned dst_stride,
+ const void *src, unsigned src_stride,
+ unsigned x, unsigned y, unsigned w, unsigned h);
+
+void
+util_format_write_4ui(enum pipe_format format,
+ const unsigned int *src, unsigned src_stride,
+ void *dst, unsigned dst_stride,
+ unsigned x, unsigned y, unsigned w, unsigned h);
+
+void
+util_format_read_4i(enum pipe_format format,
+ int *dst, unsigned dst_stride,
+ const void *src, unsigned src_stride,
+ unsigned x, unsigned y, unsigned w, unsigned h);
+
+void
+util_format_write_4i(enum pipe_format format,
+ const int *src, unsigned src_stride,
+ void *dst, unsigned dst_stride,
+ unsigned x, unsigned y, unsigned w, unsigned h);
+
/*
* Generic format conversion;
*/