Added MesaLib-7.6

1 files changed, 293 insertions, 0 deletions

diff --git a/mesalib/src/mesa/main/texformat.h b/mesalib/src/mesa/main/texformat.h
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+++ b/mesalib/src/mesa/main/texformat.h
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+/*
+ * Mesa 3-D graphics library
+ * Version:  6.5.1
+ *
+ * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
+ * Copyright (c) 2008 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.
+ */
+
+
+/**
+ * \file texformat.h
+ * Texture formats definitions.
+ *
+ * \author Gareth Hughes
+ */
+
+
+#ifndef TEXFORMAT_H
+#define TEXFORMAT_H
+
+
+#include "mtypes.h"
+
+
+/**
+ * Mesa internal texture image formats.
+ * All texture images are stored in one of these formats.
+ *
+ * NOTE: when you add a new format, be sure to update the do_row()
+ * function in texstore.c used for auto mipmap generation.
+ */
+enum _format {
+   /** 
+    * \name Hardware-friendly formats.  
+    *
+    * Drivers can override the default formats and convert texture images to
+    * one of these as required.  The driver's
+    * dd_function_table::ChooseTextureFormat function will choose one of these
+    * formats.
+    *
+    * \note In the default case, some of these formats will be duplicates of
+    * the generic formats listed below.  However, these formats guarantee their
+    * internal component sizes, while GLchan may vary between GLubyte, GLushort
+    * and GLfloat.
+    */
+   /*@{*/
+				/* msb <------ TEXEL BITS -----------> lsb */
+				/* ---- ---- ---- ---- ---- ---- ---- ---- */
+   MESA_FORMAT_RGBA8888,	/* RRRR RRRR GGGG GGGG BBBB BBBB AAAA AAAA */
+   MESA_FORMAT_RGBA8888_REV,	/* AAAA AAAA BBBB BBBB GGGG GGGG RRRR RRRR */
+   MESA_FORMAT_ARGB8888,	/* AAAA AAAA RRRR RRRR GGGG GGGG BBBB BBBB */
+   MESA_FORMAT_ARGB8888_REV,	/* BBBB BBBB GGGG GGGG RRRR RRRR AAAA AAAA */
+   MESA_FORMAT_RGB888,		/*           RRRR RRRR GGGG GGGG BBBB BBBB */
+   MESA_FORMAT_BGR888,		/*           BBBB BBBB GGGG GGGG RRRR RRRR */
+   MESA_FORMAT_RGB565,		/*                     RRRR RGGG GGGB BBBB */
+   MESA_FORMAT_RGB565_REV,	/*                     GGGB BBBB RRRR RGGG */
+   MESA_FORMAT_RGBA4444,        /*                     RRRR GGGG BBBB AAAA */
+   MESA_FORMAT_ARGB4444,	/*                     AAAA RRRR GGGG BBBB */
+   MESA_FORMAT_ARGB4444_REV,	/*                     GGGG BBBB AAAA RRRR */
+   MESA_FORMAT_RGBA5551,        /*                     RRRR RGGG GGBB BBBA */
+   MESA_FORMAT_ARGB1555,	/*                     ARRR RRGG GGGB BBBB */
+   MESA_FORMAT_ARGB1555_REV,	/*                     GGGB BBBB ARRR RRGG */
+   MESA_FORMAT_AL88,		/*                     AAAA AAAA LLLL LLLL */
+   MESA_FORMAT_AL88_REV,	/*                     LLLL LLLL AAAA AAAA */
+   MESA_FORMAT_RGB332,		/*                               RRRG GGBB */
+   MESA_FORMAT_A8,		/*                               AAAA AAAA */
+   MESA_FORMAT_L8,		/*                               LLLL LLLL */
+   MESA_FORMAT_I8,		/*                               IIII IIII */
+   MESA_FORMAT_CI8,		/*                               CCCC CCCC */
+   MESA_FORMAT_YCBCR,		/*                     YYYY YYYY UorV UorV */
+   MESA_FORMAT_YCBCR_REV,	/*                     UorV UorV YYYY YYYY */
+   MESA_FORMAT_Z24_S8,          /* ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ SSSS SSSS */
+   MESA_FORMAT_S8_Z24,          /* SSSS SSSS ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ */
+   MESA_FORMAT_Z16,             /*                     ZZZZ ZZZZ ZZZZ ZZZZ */
+   MESA_FORMAT_Z32,             /* ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ */
+   /*@}*/
+
+#if FEATURE_EXT_texture_sRGB
+   /**
+    * \name 8-bit/channel sRGB formats
+    */
+   /*@{*/
+   MESA_FORMAT_SRGB8,
+   MESA_FORMAT_SRGBA8,
+   MESA_FORMAT_SARGB8,
+   MESA_FORMAT_SL8,
+   MESA_FORMAT_SLA8,
+#if FEATURE_texture_s3tc
+   MESA_FORMAT_SRGB_DXT1,
+   MESA_FORMAT_SRGBA_DXT1,
+   MESA_FORMAT_SRGBA_DXT3,
+   MESA_FORMAT_SRGBA_DXT5,
+#endif
+   /*@}*/
+#endif
+
+   /**
+    * \name Compressed texture formats.
+    */
+   /*@{*/
+#if FEATURE_texture_fxt1
+   MESA_FORMAT_RGB_FXT1,
+   MESA_FORMAT_RGBA_FXT1,
+#endif
+#if FEATURE_texture_s3tc
+   MESA_FORMAT_RGB_DXT1,
+   MESA_FORMAT_RGBA_DXT1,
+   MESA_FORMAT_RGBA_DXT3,
+   MESA_FORMAT_RGBA_DXT5,
+#endif
+   /*@}*/
+
+   /**
+    * \name Generic GLchan-based formats.
+    *
+    * Software-oriented texture formats.  Texels are arrays of GLchan
+    * values so there are no byte order issues.
+    *
+    * \note Because these are based on the GLchan data type, one cannot assume
+    * 8 bits per channel with these formats.  If you require GLubyte channels,
+    * use one of the hardware formats above.
+    */
+   /*@{*/
+   MESA_FORMAT_RGBA,
+   MESA_FORMAT_RGB,
+   MESA_FORMAT_ALPHA,
+   MESA_FORMAT_LUMINANCE,
+   MESA_FORMAT_LUMINANCE_ALPHA,
+   MESA_FORMAT_INTENSITY,
+   /*@}*/
+
+   /**
+    * \name Floating point texture formats.
+    */
+   /*@{*/
+   MESA_FORMAT_RGBA_FLOAT32,
+   MESA_FORMAT_RGBA_FLOAT16,
+   MESA_FORMAT_RGB_FLOAT32,
+   MESA_FORMAT_RGB_FLOAT16,
+   MESA_FORMAT_ALPHA_FLOAT32,
+   MESA_FORMAT_ALPHA_FLOAT16,
+   MESA_FORMAT_LUMINANCE_FLOAT32,
+   MESA_FORMAT_LUMINANCE_FLOAT16,
+   MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32,
+   MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16,
+   MESA_FORMAT_INTENSITY_FLOAT32,
+   MESA_FORMAT_INTENSITY_FLOAT16,
+   /*@}*/
+
+   /**
+    * \name Signed fixed point texture formats.
+    */
+   /*@{*/
+   MESA_FORMAT_DUDV8,
+   MESA_FORMAT_SIGNED_RGBA8888,
+   MESA_FORMAT_SIGNED_RGBA8888_REV
+   /*@}*/
+};
+
+
+/** GLchan-valued formats */
+/*@{*/
+extern const struct gl_texture_format _mesa_texformat_rgba;
+extern const struct gl_texture_format _mesa_texformat_rgb;
+extern const struct gl_texture_format _mesa_texformat_alpha;
+extern const struct gl_texture_format _mesa_texformat_luminance;
+extern const struct gl_texture_format _mesa_texformat_luminance_alpha;
+extern const struct gl_texture_format _mesa_texformat_intensity;
+/*@}*/
+
+#if FEATURE_EXT_texture_sRGB
+/** sRGB (nonlinear) formats */
+/*@{*/
+extern const struct gl_texture_format _mesa_texformat_srgb8;
+extern const struct gl_texture_format _mesa_texformat_srgba8;
+extern const struct gl_texture_format _mesa_texformat_sargb8;
+extern const struct gl_texture_format _mesa_texformat_sl8;
+extern const struct gl_texture_format _mesa_texformat_sla8;
+#if FEATURE_texture_s3tc
+extern const struct gl_texture_format _mesa_texformat_srgb_dxt1;
+extern const struct gl_texture_format _mesa_texformat_srgba_dxt1;
+extern const struct gl_texture_format _mesa_texformat_srgba_dxt3;
+extern const struct gl_texture_format _mesa_texformat_srgba_dxt5;
+#endif
+/*@}*/
+#endif
+
+/** Floating point texture formats */
+/*@{*/
+extern const struct gl_texture_format _mesa_texformat_rgba_float32;
+extern const struct gl_texture_format _mesa_texformat_rgba_float16;
+extern const struct gl_texture_format _mesa_texformat_rgb_float32;
+extern const struct gl_texture_format _mesa_texformat_rgb_float16;
+extern const struct gl_texture_format _mesa_texformat_alpha_float32;
+extern const struct gl_texture_format _mesa_texformat_alpha_float16;
+extern const struct gl_texture_format _mesa_texformat_luminance_float32;
+extern const struct gl_texture_format _mesa_texformat_luminance_float16;
+extern const struct gl_texture_format _mesa_texformat_luminance_alpha_float32;
+extern const struct gl_texture_format _mesa_texformat_luminance_alpha_float16;
+extern const struct gl_texture_format _mesa_texformat_intensity_float32;
+extern const struct gl_texture_format _mesa_texformat_intensity_float16;
+/*@}*/
+
+/** Signed fixed point texture formats */
+/*@{*/
+extern const struct gl_texture_format _mesa_texformat_dudv8;
+extern const struct gl_texture_format _mesa_texformat_signed_rgba8888;
+extern const struct gl_texture_format _mesa_texformat_signed_rgba8888_rev;
+/*@}*/
+
+/** \name Assorted hardware-friendly formats */
+/*@{*/
+extern const struct gl_texture_format _mesa_texformat_rgba8888;
+extern const struct gl_texture_format _mesa_texformat_rgba8888_rev;
+extern const struct gl_texture_format _mesa_texformat_argb8888;
+extern const struct gl_texture_format _mesa_texformat_argb8888_rev;
+extern const struct gl_texture_format _mesa_texformat_rgb888;
+extern const struct gl_texture_format _mesa_texformat_bgr888;
+extern const struct gl_texture_format _mesa_texformat_rgb565;
+extern const struct gl_texture_format _mesa_texformat_rgb565_rev;
+extern const struct gl_texture_format _mesa_texformat_rgba4444;
+extern const struct gl_texture_format _mesa_texformat_argb4444;
+extern const struct gl_texture_format _mesa_texformat_argb4444_rev;
+extern const struct gl_texture_format _mesa_texformat_argb1555;
+extern const struct gl_texture_format _mesa_texformat_argb1555_rev;
+extern const struct gl_texture_format _mesa_texformat_rgba5551;
+extern const struct gl_texture_format _mesa_texformat_al88;
+extern const struct gl_texture_format _mesa_texformat_al88_rev;
+extern const struct gl_texture_format _mesa_texformat_rgb332;
+extern const struct gl_texture_format _mesa_texformat_a8;
+extern const struct gl_texture_format _mesa_texformat_l8;
+extern const struct gl_texture_format _mesa_texformat_i8;
+extern const struct gl_texture_format _mesa_texformat_ci8;
+extern const struct gl_texture_format _mesa_texformat_z24_s8;
+extern const struct gl_texture_format _mesa_texformat_s8_z24;
+extern const struct gl_texture_format _mesa_texformat_z16;
+extern const struct gl_texture_format _mesa_texformat_z32;
+/*@}*/
+
+/** \name YCbCr formats */
+/*@{*/
+extern const struct gl_texture_format _mesa_texformat_ycbcr;
+extern const struct gl_texture_format _mesa_texformat_ycbcr_rev;
+/*@}*/
+
+/** \name Compressed formats */
+/*@{*/
+#if FEATURE_texture_fxt1
+extern const struct gl_texture_format _mesa_texformat_rgb_fxt1;
+extern const struct gl_texture_format _mesa_texformat_rgba_fxt1;
+#endif
+#if FEATURE_texture_s3tc
+extern const struct gl_texture_format _mesa_texformat_rgb_dxt1;
+extern const struct gl_texture_format _mesa_texformat_rgba_dxt1;
+extern const struct gl_texture_format _mesa_texformat_rgba_dxt3;
+extern const struct gl_texture_format _mesa_texformat_rgba_dxt5;
+#endif
+/*@}*/
+
+/** \name The null format */
+/*@{*/
+extern const struct gl_texture_format _mesa_null_texformat;
+/*@}*/
+
+
+extern const struct gl_texture_format *
+_mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat,
+                         GLenum format, GLenum type );
+
+
+extern void
+_mesa_format_to_type_and_comps(const struct gl_texture_format *format,
+                               GLenum *datatype, GLuint *comps);
+
+
+#endif