mesa: initial check-in of new formats.[ch] files

1 files changed, 851 insertions, 0 deletions

diff --git a/src/mesa/main/formats.c b/src/mesa/main/formats.c
new file mode 100644
index 0000000000..32884cb41d
--- /dev/null
+++ b/src/mesa/main/formats.c
@@ -0,0 +1,851 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.7
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ * Copyright (c) 2008-2009  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
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "formats.h"
+#include "config.h"
+#include "texstore.h"
+
+
+/**
+ * Info about each format.
+ * These must be in the same order as the MESA_FORMAT_* enums so that
+ * we can do lookups without searching.
+ */
+static struct gl_format_info format_info[MESA_FORMAT_COUNT] =
+{
+   {
+      MESA_FORMAT_RGBA8888,        /* Name */
+      GL_RGBA,                     /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      8, 8, 8, 8,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 4                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_RGBA8888_REV,    /* Name */
+      GL_RGBA,                     /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      8, 8, 8, 8,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 4                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_ARGB8888,        /* Name */
+      GL_RGBA,                     /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      8, 8, 8, 8,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 4                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_ARGB8888_REV,    /* Name */
+      GL_RGBA,                     /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      8, 8, 8, 8,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 4                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_RGB888,          /* Name */
+      GL_RGB,                      /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      8, 8, 8, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 3                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_BGR888,          /* Name */
+      GL_RGB,                      /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      8, 8, 8, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 3                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_RGB565,          /* Name */
+      GL_RGB,                      /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      5, 6, 5, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_RGB565_REV,      /* Name */
+      GL_RGB,                      /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      5, 6, 5, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_RGBA4444,        /* Name */
+      GL_RGBA,                     /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      4, 4, 4, 4,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_ARGB4444,        /* Name */
+      GL_RGBA,                     /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      4, 4, 4, 4,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_ARGB4444_REV,    /* Name */
+      GL_RGBA,                     /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      4, 4, 4, 4,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_RGBA5551,        /* Name */
+      GL_RGBA,                     /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      5, 5, 5, 1,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_ARGB1555,        /* Name */
+      GL_RGBA,                     /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      5, 5, 5, 1,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_ARGB1555_REV,    /* Name */
+      GL_RGBA,                     /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      5, 5, 5, 1,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_AL88,            /* Name */
+      GL_LUMINANCE_ALPHA,          /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      0, 0, 0, 8,                  /* Red/Green/Blue/AlphaBits */
+      8, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_AL88_REV,        /* Name */
+      GL_LUMINANCE_ALPHA,          /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      0, 0, 0, 8,                  /* Red/Green/Blue/AlphaBits */
+      8, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_RGB332,          /* Name */
+      GL_RGB,                      /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      3, 3, 2, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 1                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_A8,              /* Name */
+      GL_ALPHA,                    /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      0, 0, 0, 8,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 1                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_L8,              /* Name */
+      GL_LUMINANCE,                /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      0, 0, 0, 0,                  /* Red/Green/Blue/AlphaBits */
+      8, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 1                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_I8,              /* Name */
+      GL_INTENSITY,                /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      0, 0, 0, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 8, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 1                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_CI8,             /* Name */
+      GL_COLOR_INDEX,              /* BaseFormat */
+      GL_UNSIGNED_INT,             /* DataType */
+      0, 0, 0, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 8, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 1                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_YCBCR,           /* Name */
+      GL_YCBCR_MESA,               /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      0, 0, 0, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_YCBCR_REV,       /* Name */
+      GL_YCBCR_MESA,               /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      0, 0, 0, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_Z24_S8,          /* Name */
+      GL_DEPTH_STENCIL,            /* BaseFormat */
+      GL_UNSIGNED_INT,             /* DataType */
+      0, 0, 0, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 24, 8,              /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 4                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_S8_Z24,          /* Name */
+      GL_DEPTH_STENCIL,            /* BaseFormat */
+      GL_UNSIGNED_INT,             /* DataType */
+      0, 0, 0, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 24, 8,              /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 4                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_Z16,             /* Name */
+      GL_DEPTH_COMPONENT,          /* BaseFormat */
+      GL_UNSIGNED_INT,             /* DataType */
+      0, 0, 0, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 16, 0,              /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 2                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_Z32,             /* Name */
+      GL_DEPTH_COMPONENT,          /* BaseFormat */
+      GL_UNSIGNED_INT,             /* DataType */
+      0, 0, 0, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 32, 0,              /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 4                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_S8,              /* Name */
+      GL_STENCIL_INDEX,            /* BaseFormat */
+      GL_UNSIGNED_INT,             /* DataType */
+      0, 0, 0, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 8,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 1                      /* BlockWidth/Height,Bytes */
+   },
+
+#if FEATURE_EXT_texture_sRGB
+   {
+      MESA_FORMAT_SRGB8,
+      GL_RGB,
+      GL_UNSIGNED_NORMALIZED,
+      8, 8, 8, 0,
+      0, 0, 0, 0, 0,
+      1, 1, 3
+   },
+   {
+      MESA_FORMAT_SRGBA8,
+      GL_RGBA,
+      GL_UNSIGNED_NORMALIZED,    
+      8, 8, 8, 8,
+      0, 0, 0, 0, 0,
+      1, 1, 4
+   },
+   {
+      MESA_FORMAT_SARGB8,
+      GL_RGBA,
+      GL_UNSIGNED_NORMALIZED,    
+      8, 8, 8, 8,
+      0, 0, 0, 0, 0,
+      1, 1, 4
+   },
+   {
+      MESA_FORMAT_SL8,
+      GL_LUMINANCE_ALPHA,
+      GL_UNSIGNED_NORMALIZED,    
+      0, 0, 0, 8,
+      8, 0, 0, 0, 0,
+      1, 1, 2
+   },
+   {
+      MESA_FORMAT_SLA8,
+      GL_LUMINANCE_ALPHA,
+      GL_UNSIGNED_NORMALIZED,    
+      0, 0, 0, 8,
+      8, 0, 0, 0, 0,
+      1, 1, 2
+   },
+#if FEATURE_texture_s3tc
+   {
+      MESA_FORMAT_SRGB_DXT1,       /* Name */
+      GL_RGB,                      /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      4, 4, 4, 0,                  /* approx Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      4, 4, 8                      /* 8 bytes per 4x4 block */
+   },
+   {
+      MESA_FORMAT_SRGBA_DXT1,
+      GL_RGBA,
+      GL_UNSIGNED_NORMALIZED,
+      4, 4, 4, 4,
+      0, 0, 0, 0, 0,
+      4, 4, 8                      /* 8 bytes per 4x4 block */
+   },
+   {
+      MESA_FORMAT_SRGBA_DXT3,
+      GL_RGBA,
+      GL_UNSIGNED_NORMALIZED,
+      4, 4, 4, 4,
+      0, 0, 0, 0, 0,
+      4, 4, 16                     /* 16 bytes per 4x4 block */
+   },
+   {
+      MESA_FORMAT_SRGBA_DXT5,
+      GL_RGBA,
+      GL_UNSIGNED_NORMALIZED,
+      4, 4, 4, 4,
+      0, 0, 0, 0, 0,
+      4, 4, 16                     /* 16 bytes per 4x4 block */
+   },
+#endif
+#endif
+
+#if FEATURE_texture_fxt1
+   {
+      MESA_FORMAT_RGB_FXT1,
+      GL_RGB,
+      GL_UNSIGNED_NORMALIZED,
+      8, 8, 8, 0,
+      0, 0, 0, 0, 0,
+      8, 4, 16                     /* 16 bytes per 8x4 block */
+   },
+   {
+      MESA_FORMAT_RGBA_FXT1,
+      GL_RGBA,
+      GL_UNSIGNED_NORMALIZED,
+      8, 8, 8, 8,
+      0, 0, 0, 0, 0,
+      8, 4, 16                     /* 16 bytes per 8x4 block */
+   },
+#endif
+
+#if FEATURE_texture_s3tc
+   {
+      MESA_FORMAT_RGB_DXT1,        /* Name */
+      GL_RGB,                      /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      4, 4, 4, 0,                  /* approx Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      4, 4, 8                      /* 8 bytes per 4x4 block */
+   },
+   {
+      MESA_FORMAT_RGBA_DXT1,
+      GL_RGBA,
+      GL_UNSIGNED_NORMALIZED,    
+      4, 4, 4, 4,
+      0, 0, 0, 0, 0,
+      4, 4, 8                      /* 8 bytes per 4x4 block */
+   },
+   {
+      MESA_FORMAT_RGBA_DXT3,
+      GL_RGBA,
+      GL_UNSIGNED_NORMALIZED,    
+      4, 4, 4, 4,
+      0, 0, 0, 0, 0,
+      4, 4, 16                     /* 16 bytes per 4x4 block */
+   },
+   {
+      MESA_FORMAT_RGBA_DXT5,
+      GL_RGBA,
+      GL_UNSIGNED_NORMALIZED,    
+      4, 4, 4, 4,
+      0, 0, 0, 0, 0,
+      4, 4, 16                     /* 16 bytes per 4x4 block */
+   },
+#endif
+
+   {
+      MESA_FORMAT_RGBA,
+      GL_RGBA,
+      GL_UNSIGNED_NORMALIZED,    
+      CHAN_BITS, CHAN_BITS, CHAN_BITS, CHAN_BITS,
+      0, 0, 0, 0, 0,
+      1, 1, 4 * CHAN_BITS / 8
+   },
+   {
+      MESA_FORMAT_RGB,
+      GL_RGB,
+      GL_UNSIGNED_NORMALIZED,    
+      CHAN_BITS, CHAN_BITS, CHAN_BITS, 0,
+      0, 0, 0, 0, 0,
+      1, 1, 3 * CHAN_BITS / 8
+   },
+   {
+      MESA_FORMAT_ALPHA,
+      GL_ALPHA,
+      GL_UNSIGNED_NORMALIZED,    
+      0, 0, 0, CHAN_BITS,
+      0, 0, 0, 0, 0,
+      1, 1, 1 * CHAN_BITS / 8
+   },
+   {
+      MESA_FORMAT_LUMINANCE,
+      GL_LUMINANCE,
+      GL_UNSIGNED_NORMALIZED,    
+      0, 0, 0, 0,
+      CHAN_BITS, 0, 0, 0, 0,
+      1, 1, 1 * CHAN_BITS / 8
+   },
+   {
+      MESA_FORMAT_LUMINANCE_ALPHA,
+      GL_LUMINANCE_ALPHA,
+      GL_UNSIGNED_NORMALIZED,    
+      0, 0, 0, CHAN_BITS,
+      CHAN_BITS, 0, 0, 0, 0,
+      1, 1, 2 * CHAN_BITS / 8
+   },
+   {
+      MESA_FORMAT_INTENSITY,
+      GL_INTENSITY,
+      GL_UNSIGNED_NORMALIZED,
+      0, 0, 0, 0,
+      0, CHAN_BITS, 0, 0, 0,
+      1, 1, 1 * CHAN_BITS / 8
+   },
+   {
+      MESA_FORMAT_RGBA_FLOAT32,
+      GL_RGBA,
+      GL_FLOAT,
+      32, 32, 32, 32,
+      0, 0, 0, 0, 0,
+      1, 1, 16
+   },
+   {
+      MESA_FORMAT_RGBA_FLOAT16,
+      GL_RGBA,
+      GL_FLOAT,
+      16, 16, 16, 16,
+      0, 0, 0, 0, 0,
+      1, 1, 8
+   },
+   {
+      MESA_FORMAT_RGB_FLOAT32,
+      GL_RGB,
+      GL_FLOAT,
+      32, 32, 32, 0,
+      0, 0, 0, 0, 0,
+      1, 1, 12
+   },
+   {
+      MESA_FORMAT_RGB_FLOAT16,
+      GL_RGB,
+      GL_FLOAT,
+      16, 16, 16, 0,
+      0, 0, 0, 0, 0,
+      1, 1, 6
+   },
+   {
+      MESA_FORMAT_ALPHA_FLOAT32,
+      GL_ALPHA,
+      GL_FLOAT,
+      0, 0, 0, 32,
+      0, 0, 0, 0, 0,
+      1, 1, 4
+   },
+   {
+      MESA_FORMAT_ALPHA_FLOAT16,
+      GL_ALPHA,
+      GL_FLOAT,
+      0, 0, 0, 16,
+      0, 0, 0, 0, 0,
+      1, 1, 2
+   },
+   {
+      MESA_FORMAT_LUMINANCE_FLOAT32,
+      GL_ALPHA,
+      GL_FLOAT,
+      0, 0, 0, 0,
+      32, 0, 0, 0, 0,
+      1, 1, 4
+   },
+   {
+      MESA_FORMAT_LUMINANCE_FLOAT16,
+      GL_ALPHA,
+      GL_FLOAT,
+      0, 0, 0, 0,
+      16, 0, 0, 0, 0,
+      1, 1, 2
+   },
+   {
+      MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32,
+      GL_LUMINANCE_ALPHA,
+      GL_FLOAT,
+      0, 0, 0, 32,
+      32, 0, 0, 0, 0,
+      1, 1, 8
+   },
+   {
+      MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16,
+      GL_LUMINANCE_ALPHA,
+      GL_FLOAT,
+      0, 0, 0, 16,
+      16, 0, 0, 0, 0,
+      1, 1, 4
+   },
+   {
+      MESA_FORMAT_INTENSITY_FLOAT32,
+      GL_INTENSITY,
+      GL_FLOAT,
+      0, 0, 0, 0,
+      0, 32, 0, 0, 0,
+      1, 1, 4
+   },
+   {
+      MESA_FORMAT_INTENSITY_FLOAT16,
+      GL_INTENSITY,
+      GL_FLOAT,
+      0, 0, 0, 0,
+      0, 16, 0, 0, 0,
+      1, 1, 2
+   },
+
+   {
+      MESA_FORMAT_DUDV8,
+      GL_DUDV_ATI,
+      GL_SIGNED_NORMALIZED,
+      0, 0, 0, 0,
+      0, 0, 0, 0, 0,
+      1, 1, 2
+   },
+
+   {
+      MESA_FORMAT_SIGNED_RGBA8888,
+      GL_RGBA,
+      GL_SIGNED_NORMALIZED,
+      8, 8, 8, 8,
+      0, 0, 0, 0, 0,
+      1, 1, 4
+   },
+   {
+      MESA_FORMAT_SIGNED_RGBA8888_REV,
+      GL_RGBA,
+      GL_SIGNED_NORMALIZED,
+      8, 8, 8, 8,
+      0, 0, 0, 0, 0,
+      1, 1, 4
+   },
+
+};
+
+
+static struct {
+   gl_format Name;
+   StoreTexImageFunc Store;
+}
+texstore_funcs[MESA_FORMAT_COUNT] =
+{
+   { MESA_FORMAT_RGBA, _mesa_texstore_rgba },
+   { MESA_FORMAT_RGB, _mesa_texstore_rgba },
+   { MESA_FORMAT_ALPHA, _mesa_texstore_rgba },
+   { MESA_FORMAT_LUMINANCE, _mesa_texstore_rgba },
+   { MESA_FORMAT_LUMINANCE_ALPHA, _mesa_texstore_rgba },
+   { MESA_FORMAT_INTENSITY, _mesa_texstore_rgba },
+   { MESA_FORMAT_SRGB8, _mesa_texstore_srgb8 },
+   { MESA_FORMAT_SRGBA8, _mesa_texstore_srgba8 },
+   { MESA_FORMAT_SARGB8, _mesa_texstore_sargb8 },
+   { MESA_FORMAT_SL8, _mesa_texstore_sl8 },
+   { MESA_FORMAT_SLA8, _mesa_texstore_sla8 },
+   { MESA_FORMAT_RGBA_FLOAT32, _mesa_texstore_rgba_float32 },
+   { MESA_FORMAT_RGBA_FLOAT16, _mesa_texstore_rgba_float16 },
+   { MESA_FORMAT_RGB_FLOAT32, _mesa_texstore_rgba_float32 },
+   { MESA_FORMAT_RGB_FLOAT16, _mesa_texstore_rgba_float16 },
+   { MESA_FORMAT_ALPHA_FLOAT32, _mesa_texstore_rgba_float32 },
+   { MESA_FORMAT_ALPHA_FLOAT16, _mesa_texstore_rgba_float16 },
+   { MESA_FORMAT_LUMINANCE_FLOAT32, _mesa_texstore_rgba_float32 },
+   { MESA_FORMAT_LUMINANCE_FLOAT16, _mesa_texstore_rgba_float16 },
+   { MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, _mesa_texstore_rgba_float32 },
+   { MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, _mesa_texstore_rgba_float16 },
+   { MESA_FORMAT_INTENSITY_FLOAT32, _mesa_texstore_rgba_float32 },
+   { MESA_FORMAT_INTENSITY_FLOAT16, _mesa_texstore_rgba_float16 },
+   { MESA_FORMAT_DUDV8, _mesa_texstore_dudv8 },
+   { MESA_FORMAT_SIGNED_RGBA8888, _mesa_texstore_signed_rgba8888 },
+   { MESA_FORMAT_SIGNED_RGBA8888_REV, _mesa_texstore_signed_rgba8888 },
+   { MESA_FORMAT_RGBA8888, _mesa_texstore_rgba8888 },
+   { MESA_FORMAT_RGBA8888_REV, _mesa_texstore_rgba8888 },
+   { MESA_FORMAT_ARGB8888, _mesa_texstore_argb8888 },
+   { MESA_FORMAT_ARGB8888_REV, _mesa_texstore_argb8888 },
+   { MESA_FORMAT_RGB888, _mesa_texstore_rgb888 },
+   { MESA_FORMAT_BGR888, _mesa_texstore_bgr888 },
+   { MESA_FORMAT_RGB565, _mesa_texstore_rgb565 },
+   { MESA_FORMAT_RGB565_REV, _mesa_texstore_rgb565 },
+   { MESA_FORMAT_RGBA4444, _mesa_texstore_rgba4444 },
+   { MESA_FORMAT_ARGB4444, _mesa_texstore_argb4444 },
+   { MESA_FORMAT_ARGB4444_REV, _mesa_texstore_argb4444 },
+   { MESA_FORMAT_RGBA5551, _mesa_texstore_rgba5551 },
+   { MESA_FORMAT_ARGB1555, _mesa_texstore_argb1555 },
+   { MESA_FORMAT_ARGB1555_REV, _mesa_texstore_argb1555 },
+   { MESA_FORMAT_AL88, _mesa_texstore_al88 },
+   { MESA_FORMAT_AL88_REV, _mesa_texstore_al88 },
+   { MESA_FORMAT_RGB332, _mesa_texstore_rgb332 },
+   { MESA_FORMAT_A8, _mesa_texstore_a8 },
+   { MESA_FORMAT_L8, _mesa_texstore_a8 },
+   { MESA_FORMAT_I8, _mesa_texstore_a8 },
+   { MESA_FORMAT_CI8, _mesa_texstore_ci8 },
+   { MESA_FORMAT_YCBCR, _mesa_texstore_ycbcr },
+   { MESA_FORMAT_YCBCR_REV, _mesa_texstore_ycbcr },
+   { MESA_FORMAT_Z24_S8, _mesa_texstore_z24_s8 },
+   { MESA_FORMAT_S8_Z24, _mesa_texstore_s8_z24 },
+   { MESA_FORMAT_Z16, _mesa_texstore_z16 },
+   { MESA_FORMAT_Z32, _mesa_texstore_z32 },
+   { MESA_FORMAT_S8, NULL/*_mesa_texstore_s8*/ },
+};
+
+
+static const struct gl_format_info *
+_mesa_get_format_info(gl_format format)
+{
+   const struct gl_format_info *info = &format_info[format];
+   assert(info->Name == format);
+   return info;
+}
+
+
+GLuint
+_mesa_get_format_bytes(gl_format format)
+{
+   const struct gl_format_info *info = _mesa_get_format_info(format);
+   ASSERT(info->BytesPerBlock);
+   return info->BytesPerBlock;
+}
+
+
+GLenum
+_mesa_get_format_base_format(gl_format format)
+{
+   const struct gl_format_info *info = _mesa_get_format_info(format);
+   return info->BaseFormat;
+}
+
+
+GLboolean
+_mesa_is_format_compressed(gl_format format)
+{
+   const struct gl_format_info *info = _mesa_get_format_info(format);
+   return info->BlockWidth > 1 || info->BlockHeight > 1;
+}
+
+
+/* XXX move to texstore.c */
+StoreTexImageFunc
+_mesa_get_texstore_func(gl_format format)
+{
+   GLuint i;
+   for (i = 0; i < MESA_FORMAT_COUNT; i++) {
+      if (texstore_funcs[i].Name == format)
+         return texstore_funcs[i].Store;
+   }
+   return NULL;
+}
+
+
+/**
+ * Do sanity checking of the format info table.
+ */
+void
+_mesa_test_formats(void)
+{
+   GLuint i;
+
+   assert(Elements(format_info) == MESA_FORMAT_COUNT);
+
+   for (i = 0; i < MESA_FORMAT_COUNT; i++) {
+      const struct gl_format_info *info = _mesa_get_format_info(i);
+      assert(info);
+
+      assert(info->Name == i);
+
+      if (info->BlockWidth == 1 && info->BlockHeight == 1) {
+         if (info->RedBits > 0) {
+            GLuint t = info->RedBits + info->GreenBits
+               + info->BlueBits + info->AlphaBits;
+            assert(t / 8 == info->BytesPerBlock);
+         }
+      }
+
+      assert(info->DataType == GL_UNSIGNED_NORMALIZED ||
+             info->DataType == GL_SIGNED_NORMALIZED ||
+             info->DataType == GL_UNSIGNED_INT ||
+             info->DataType == GL_FLOAT);
+
+      if (info->BaseFormat == GL_RGB) {
+         assert(info->RedBits > 0);
+         assert(info->GreenBits > 0);
+         assert(info->BlueBits > 0);
+         assert(info->AlphaBits == 0);
+         assert(info->LuminanceBits == 0);
+         assert(info->IntensityBits == 0);
+      }
+      else if (info->BaseFormat == GL_RGBA) {
+         assert(info->RedBits > 0);
+         assert(info->GreenBits > 0);
+         assert(info->BlueBits > 0);
+         assert(info->AlphaBits > 0);
+         assert(info->LuminanceBits == 0);
+         assert(info->IntensityBits == 0);
+      }
+      else if (info->BaseFormat == GL_LUMINANCE) {
+         assert(info->RedBits == 0);
+         assert(info->GreenBits == 0);
+         assert(info->BlueBits == 0);
+         assert(info->AlphaBits == 0);
+         assert(info->LuminanceBits > 0);
+         assert(info->IntensityBits == 0);
+      }
+      else if (info->BaseFormat == GL_INTENSITY) {
+         assert(info->RedBits == 0);
+         assert(info->GreenBits == 0);
+         assert(info->BlueBits == 0);
+         assert(info->AlphaBits == 0);
+         assert(info->LuminanceBits == 0);
+         assert(info->IntensityBits > 0);
+      }
+
+   }
+}
+
+
+/**
+ * XXX possible replacement for _mesa_format_to_type_and_comps()
+ * Used for mipmap generation.
+ */
+void
+_mesa_format_to_type_and_comps2(gl_format format,
+                                GLenum *datatype, GLuint *comps)
+{
+   const struct gl_format_info *info = _mesa_get_format_info(format);
+
+   /* We use a bunch of heuristics here.  If this gets too ugly we could
+    * just encode the info the in the gl_format_info structures.
+    */
+   if (info->BaseFormat == GL_RGB ||
+       info->BaseFormat == GL_RGBA ||
+       info->BaseFormat == GL_ALPHA) {
+      *comps = ((info->RedBits > 0) +
+                (info->GreenBits > 0) +
+                (info->BlueBits > 0) +
+                (info->AlphaBits > 0));
+
+      if (info->DataType== GL_FLOAT) {
+         if (info->RedBits == 32)
+            *datatype = GL_FLOAT;
+         else
+            *datatype = GL_HALF_FLOAT;
+      }
+      else if (info->GreenBits == 3) {
+         *datatype = GL_UNSIGNED_BYTE_3_3_2;
+      }
+      else if (info->GreenBits == 4) {
+         *datatype = GL_UNSIGNED_SHORT_4_4_4_4;
+      }
+      else if (info->GreenBits == 6) {
+         *datatype = GL_UNSIGNED_SHORT_5_6_5;
+      }
+      else if (info->GreenBits == 5) {
+         *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV;
+      }
+      else if (info->RedBits == 8) {
+         *datatype = GL_UNSIGNED_BYTE;
+      }
+      else {
+         ASSERT(info->RedBits == 16);
+         *datatype = GL_UNSIGNED_SHORT;
+      }
+   }
+   else if (info->BaseFormat == GL_LUMINANCE ||
+            info->BaseFormat == GL_LUMINANCE_ALPHA) {
+      *comps = ((info->LuminanceBits > 0) +
+                (info->AlphaBits > 0));
+      if (info->LuminanceBits == 8) {
+         *datatype = GL_UNSIGNED_BYTE;
+      }
+      else if (info->LuminanceBits == 16) {
+         *datatype = GL_UNSIGNED_SHORT;
+      }
+      else {
+         *datatype = GL_FLOAT;
+      }
+   }
+   else if (info->BaseFormat == GL_INTENSITY) {
+      *comps = 1;
+      if (info->IntensityBits == 8) {
+         *datatype = GL_UNSIGNED_BYTE;
+      }
+      else if (info->IntensityBits == 16) {
+         *datatype = GL_UNSIGNED_SHORT;
+      }
+      else {
+         *datatype = GL_FLOAT;
+      }
+   }
+   else if (info->BaseFormat == GL_COLOR_INDEX) {
+      *comps = 1;
+      *datatype = GL_UNSIGNED_BYTE;
+   }
+   else if (info->BaseFormat == GL_DEPTH_COMPONENT) {
+      *comps = 1;
+      if (info->DepthBits == 16) {
+         *datatype = GL_UNSIGNED_SHORT;
+      }
+      else {
+         ASSERT(info->DepthBits == 32);
+         *datatype = GL_UNSIGNED_INT;
+      }
+   }
+   else if (info->BaseFormat == GL_DEPTH_STENCIL) {
+      *comps = 1;
+      *datatype = GL_UNSIGNED_INT;
+   }
+   else if (info->BaseFormat == GL_YCBCR_MESA) {
+      *comps = 2;
+      *datatype = GL_UNSIGNED_SHORT;
+   }
+   else if (info->BaseFormat == GL_DUDV_ATI) {
+      *comps = 2;
+      *datatype = GL_BYTE;
+   }
+   else {
+      /* any other formats? */
+      ASSERT(0);
+      *comps = 1;
+      *datatype = GL_UNSIGNED_BYTE;
+   }
+}
+