-/**
- * \file texformat.h
- * Texture formats definitions.
- *
- * \author Gareth Hughes
- */
-
/*
* Mesa 3-D graphics library
- * Version: 5.1
+ * Version: 6.1
*
- * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
*/
+/**
+ * \file texformat.h
+ * Texture formats definitions.
+ *
+ * \author Gareth Hughes
+ */
+
+
#ifndef TEXFORMAT_H
#define TEXFORMAT_H
+
#include "mtypes.h"
/**
- * Mesa internal texture image types.
- *
- * All texture images must be stored in one of these formats.
+ * 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 {
/**
* 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. These formats are all little endian, as shown below. They will
- * be most useful for x86-based PC graphics card drivers.
+ * formats.
*
* \note In the default case, some of these formats will be duplicates of
* the generic formats listed below. However, these formats guarantee their
/* 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_ARGB4444, /* AAAA RRRR GGGG BBBB */
+ MESA_FORMAT_ARGB4444_REV, /* GGGG BBBB AAAA RRRR */
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_YCBCR_REV, /* UorV UorV YYYY YYYY */
/*@}*/
+ /**
+ * \name Compressed texture formats.
+ */
+ /*@{*/
+ MESA_FORMAT_RGB_FXT1,
+ MESA_FORMAT_RGBA_FXT1,
MESA_FORMAT_RGB_DXT1,
MESA_FORMAT_RGBA_DXT1,
MESA_FORMAT_RGBA_DXT3,
MESA_FORMAT_RGBA_DXT5,
-
-#if 0
- /**
- * \name Upcoming little-endian formats
- */
- /*@{*/
- /* msb <------ TEXEL BITS -----------> lsb */
- /* ---- ---- ---- ---- ---- ---- ---- ---- */
- MESA_FORMAT_ABGR8888, /* AAAA AAAA BBBB BBBB GGGG GGGG RRRR RRRR */
- MESA_FORMAT_BGRA8888, /* BBBB BBBB GGGG GGGG RRRR RRRR AAAA AAAA */
- MESA_FORMAT_BGR888, /* BBBB BBBB GGGG GGGG RRRR RRRR */
- MESA_FORMAT_BGR565, /* BBBB BGGG GGGR RRRR */
- MESA_FORMAT_BGRA4444, /* BBBB GGGG RRRR AAAA */
- MESA_FORMAT_BGRA5551, /* BBBB BGGG GGRR RRRA */
- MESA_FORMAT_LA88, /* LLLL LLLL AAAA AAAA */
- MESA_FORMAT_BGR233, /* BBGG GRRR */
/*@}*/
-#endif
/**
* \name Generic GLchan-based formats.
*
- * These are the default formats used by the software rasterizer and, unless
- * the driver overrides the texture image functions, incoming images will be
- * converted to one of these formats. Components are arrays of GLchan
- * values, so there will be no big/little endian issues.
+ * 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,
+ * \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_LUMINANCE,
MESA_FORMAT_LUMINANCE_ALPHA,
MESA_FORMAT_INTENSITY,
- MESA_FORMAT_COLOR_INDEX,
- MESA_FORMAT_DEPTH_COMPONENT
/*@}*/
-};
-
-extern GLboolean
-_mesa_is_hardware_tex_format( const struct gl_texture_format *format );
-
-extern const struct gl_texture_format *
-_mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat,
- GLenum format, GLenum type );
+ /**
+ * Depth textures
+ */
+ /*@{*/
+ MESA_FORMAT_DEPTH_COMPONENT_FLOAT32,
+ MESA_FORMAT_DEPTH_COMPONENT16,
+ /*@}*/
-extern GLint
-_mesa_base_compressed_texformat(GLcontext *ctx, GLint intFormat);
+ /**
+ * \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
+ /*@}*/
+};
-/** The default formats, GLchan per component */
+/** 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_luminance;
extern const struct gl_texture_format _mesa_texformat_luminance_alpha;
extern const struct gl_texture_format _mesa_texformat_intensity;
-extern const struct gl_texture_format _mesa_texformat_color_index;
-extern const struct gl_texture_format _mesa_texformat_depth_component;
/*@}*/
-/** \name The hardware-friendly formats */
+/** Depth textures */
+/*@{*/
+extern const struct gl_texture_format _mesa_texformat_depth_component_float32;
+extern const struct gl_texture_format _mesa_texformat_depth_component16;
+/*@}*/
+
+/** 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;
+/*@}*/
+
+/** \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_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_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;
+
+/*@}*/
+
+/** \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 */
+/*@{*/
+extern const struct gl_texture_format _mesa_texformat_rgb_fxt1;
+extern const struct gl_texture_format _mesa_texformat_rgba_fxt1;
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_null_texformat;
/*@}*/
+
+extern const struct gl_texture_format *
+_mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat,
+ GLenum format, GLenum type );
+
#endif
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