-/* $Id: texformat.h,v 1.2 2001/03/18 08:53:49 gareth Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 3.5
+ * Version: 7.75
*
- * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ * 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"),
* 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.
- *
- * Author:
- * Gareth Hughes <gareth@valinux.com>
*/
#ifndef TEXFORMAT_H
#define TEXFORMAT_H
-#include "mtypes.h"
-
-
-/* The Mesa internal texture image types. These will be set to their
- * default value, but may be changed by drivers as required.
- */
-enum _format {
- /* 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.
- *
- * NOTE: Because these are based on the GLchan datatype, one cannot
- * assume 8 bits per channel with these formats. If you require
- * GLubyte per channel, use one of the hardware formats below.
- */
- MESA_FORMAT_RGBA,
- MESA_FORMAT_RGB,
- MESA_FORMAT_ALPHA,
- MESA_FORMAT_LUMINANCE,
- MESA_FORMAT_LUMINANCE_ALPHA,
- MESA_FORMAT_INTENSITY,
- MESA_FORMAT_COLOR_INDEX,
- MESA_FORMAT_DEPTH_COMPONENT,
-
- /* Hardware-friendly formats. Drivers can override the default
- * formats and convert texture images to one of these as required.
- * These formats are all little endian, as shown below. They will be
- * most useful for x86-based PC graphics card drivers.
- *
- * NOTE: In the default case, some of these formats will be
- * duplicates of the default formats listed above. However, these
- * formats guarantee their internal component sizes, while GLchan may
- * vary betwen GLubyte, GLushort and GLfloat.
- */
- /* msb <------ TEXEL BITS -----------> lsb */
- /* ---- ---- ---- ---- ---- ---- ---- ---- */
- MESA_FORMAT_RGBA8888, /* RRRR RRRR GGGG GGGG BBBB BBBB AAAA AAAA */
- MESA_FORMAT_ARGB8888, /* AAAA AAAA RRRR RRRR GGGG GGGG BBBB BBBB */
- MESA_FORMAT_RGB888, /* RRRR RRRR GGGG GGGG BBBB BBBB */
- MESA_FORMAT_RGB565, /* RRRR RGGG GGGB BBBB */
- MESA_FORMAT_ARGB4444, /* AAAA RRRR GGGG BBBB */
- MESA_FORMAT_ARGB1555, /* ARRR RRGG GGGB BBBB */
- MESA_FORMAT_AL88, /* AAAA AAAA LLLL LLLL */
- 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 */
-};
+#include "formats.h"
-extern void
-_mesa_init_tex_format( GLcontext *ctx, GLenum internalFormat,
- struct gl_texture_image *texImage );
+struct gl_context;
+extern gl_format
+_mesa_choose_tex_format(struct gl_context *ctx, GLenum target,
+ GLint internalFormat, GLenum format, GLenum type);
-/* The default formats, GLchan per component:
- */
-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;
-extern const struct gl_texture_format _mesa_texformat_color_index;
-extern const struct gl_texture_format _mesa_texformat_depth_component;
-
-/* The hardware-friendly formats:
- */
-extern const struct gl_texture_format _mesa_texformat_rgba8888;
-extern const struct gl_texture_format _mesa_texformat_abgr8888;
-extern const struct gl_texture_format _mesa_texformat_argb8888;
-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_argb4444;
-extern const struct gl_texture_format _mesa_texformat_argb1555;
-extern const struct gl_texture_format _mesa_texformat_al88;
-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;
-
-/* The null format:
- */
-extern const struct gl_texture_format _mesa_null_texformat;
#endif
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