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Diffstat (limited to 'src/mesa/main/texutil.c')
| -rw-r--r-- | src/mesa/main/texutil.c | 1040 |
1 files changed, 0 insertions, 1040 deletions
diff --git a/src/mesa/main/texutil.c b/src/mesa/main/texutil.c deleted file mode 100644 index 0871c9ec243..00000000000 --- a/src/mesa/main/texutil.c +++ /dev/null @@ -1,1040 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 5.1 - * - * Copyright (C) 1999-2003 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"), - * 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. - * - * Authors: - * Gareth Hughes - */ - -/* - * Description: - * Functions for texture image conversion. This takes care of converting - * typical GL_RGBA/GLubyte textures into hardware-specific formats. - * We can handle non-standard row strides and pixel unpacking parameters. - */ - - -#include "glheader.h" -#include "colormac.h" -#include "context.h" -#include "enums.h" -#include "image.h" -#include "imports.h" -#include "macros.h" -#include "mtypes.h" -#include "texformat.h" -#include "texutil.h" - - -#if !NEWTEXSTORE - - -#define DEBUG_TEXUTIL 0 - - -#ifdef MESA_BIG_ENDIAN -#define APPEND16( a, b ) ( (a) << 16 | (b) ) -#else -#define APPEND16( a, b ) ( (a) | (b) << 16 ) -#endif - - -struct convert_info { - GLint xoffset, yoffset, zoffset; /* Subimage offset */ - GLint width, height, depth; /* Subimage region */ - - GLint dstImageWidth, dstImageHeight; /* Dest image size */ - /* Needed for subimage replacement */ - GLenum format, type; /* Source (user) format and type */ - - const struct gl_pixelstore_attrib *unpacking; - - const GLvoid *srcImage; - GLvoid *dstImage; - - GLint index; -}; - -typedef GLboolean (*convert_func)( const struct convert_info *convert ); - -/* bitvalues for convert->index */ -#define CONVERT_STRIDE_BIT 0x1 -#define CONVERT_UNPACKING_BIT 0x2 - - - -/* ============================================================= - * Convert to RGBA8888 textures: - */ - -#define DST_TYPE GLuint -#define DST_TEXELS_PER_DWORD 1 - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_8888_LE( src[3], src[2], src[1], src[0] ) - -#define CONVERT_DIRECT - -#define SRC_TEXEL_BYTES 4 - -#define TAG(x) x##_rgba8888_direct -#define PRESERVE_DST_TYPE -#include "texutil_tmp.h" - - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_8888_LE( src[0], src[1], src[2], src[3] ) - -#define CONVERT_TEXEL_DWORD( dst, src ) CONVERT_TEXEL( dst, src ) - -#define SRC_TEXEL_BYTES 4 - -#define TAG(x) x##_abgr8888_to_rgba8888 -#define PRESERVE_DST_TYPE -#include "texutil_tmp.h" - - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_8888_LE( src[0], src[1], src[2], 0xff ) - -#define CONVERT_TEXEL_DWORD( dst, src ) CONVERT_TEXEL( dst, src ) - -#define SRC_TEXEL_BYTES 3 - -#define TAG(x) x##_bgr888_to_rgba8888 -#include "texutil_tmp.h" - - -#define CONVERT_RGBA8888( name ) \ -static GLboolean \ -convert_##name##_rgba8888( const struct convert_info *convert ) \ -{ \ - convert_func *tab; \ - GLint index = convert->index; \ - \ - if ( convert->format == GL_ABGR_EXT && \ - convert->type == GL_UNSIGNED_INT_8_8_8_8_REV ) \ - { \ - tab = name##_tab_rgba8888_direct; \ - } \ - else if ( convert->format == GL_RGBA && \ - ( convert->type == GL_UNSIGNED_BYTE || \ - convert->type == GL_UNSIGNED_INT_8_8_8_8 ) ) \ - { \ - tab = name##_tab_abgr8888_to_rgba8888; \ - } \ - else if ( convert->format == GL_RGB && \ - convert->type == GL_UNSIGNED_BYTE ) \ - { \ - tab = name##_tab_bgr888_to_rgba8888; \ - } \ - else \ - { \ - /* Can't handle this source format/type combination */ \ - return GL_FALSE; \ - } \ - \ - return tab[index]( convert ); \ -} - -CONVERT_RGBA8888( texsubimage2d ) -CONVERT_RGBA8888( texsubimage3d ) - - - -/* ============================================================= - * Convert to ARGB8888 textures: - */ - -#define DST_TYPE GLuint -#define DST_TEXELS_PER_DWORD 1 - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_8888_LE( src[3], src[2], src[1], src[0] ) - -#define CONVERT_DIRECT - -#define SRC_TEXEL_BYTES 4 - -#define TAG(x) x##_argb8888_direct -#define PRESERVE_DST_TYPE -#include "texutil_tmp.h" - - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_8888_LE( src[3], src[0], src[1], src[2] ) - -#define CONVERT_TEXEL_DWORD( dst, src ) CONVERT_TEXEL( dst, src ) - -#define SRC_TEXEL_BYTES 4 - -#define TAG(x) x##_abgr8888_to_argb8888 -#define PRESERVE_DST_TYPE -#include "texutil_tmp.h" - - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_8888_LE( 0xff, src[0], src[1], src[2] ) - -#define CONVERT_TEXEL_DWORD( dst, src ) CONVERT_TEXEL( dst, src ) - -#define SRC_TEXEL_BYTES 3 - -#define TAG(x) x##_bgr888_to_argb8888 -#include "texutil_tmp.h" - - -#define CONVERT_ARGB8888( name ) \ -static GLboolean \ -convert_##name##_argb8888( const struct convert_info *convert ) \ -{ \ - convert_func *tab; \ - GLint index = convert->index; \ - \ - if ( convert->format == GL_BGRA && \ - convert->type == GL_UNSIGNED_INT_8_8_8_8_REV ) \ - { \ - tab = name##_tab_argb8888_direct; \ - } \ - else if ( convert->format == GL_RGBA && \ - convert->type == GL_UNSIGNED_BYTE ) \ - { \ - tab = name##_tab_abgr8888_to_argb8888; \ - } \ - else if ( convert->format == GL_RGB && \ - convert->type == GL_UNSIGNED_BYTE ) \ - { \ - tab = name##_tab_bgr888_to_argb8888; \ - } \ - else \ - { \ - /* Can't handle this source format/type combination */ \ - return GL_FALSE; \ - } \ - \ - return tab[index]( convert ); \ -} - -CONVERT_ARGB8888( texsubimage2d ) -CONVERT_ARGB8888( texsubimage3d ) - - - -/* ============================================================= - * Convert to RGB888 textures: - */ - -static GLboolean -convert_texsubimage2d_rgb888( const struct convert_info *convert ) -{ - /* This is a placeholder for now... - */ - return GL_FALSE; -} - -static GLboolean -convert_texsubimage3d_rgb888( const struct convert_info *convert ) -{ - /* This is a placeholder for now... - */ - return GL_FALSE; -} - - - -/* ============================================================= - * Convert to RGB565 textures: - */ - -#define DST_TYPE GLushort -#define DST_TEXELS_PER_DWORD 2 - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_565_LE( src[0], src[1], src[2] ) - -#define CONVERT_DIRECT - -#define SRC_TEXEL_BYTES 2 - -#define TAG(x) x##_rgb565_direct -#define PRESERVE_DST_TYPE -#include "texutil_tmp.h" - - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_565_LE( src[0], src[1], src[2] ) - -#define CONVERT_TEXEL_DWORD( dst, src ) \ - dst = APPEND16( PACK_COLOR_565_LE( src[0], src[1], src[2] ), \ - PACK_COLOR_565_LE( src[3], src[4], src[5] ) ) - -#define SRC_TEXEL_BYTES 3 - -#define TAG(x) x##_bgr888_to_rgb565 -#define PRESERVE_DST_TYPE -#include "texutil_tmp.h" - - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_565_LE( src[0], src[1], src[2] ) - -#define CONVERT_TEXEL_DWORD( dst, src ) \ - dst = APPEND16( PACK_COLOR_565_LE( src[0], src[1], src[2] ), \ - PACK_COLOR_565_LE( src[4], src[5], src[6] ) ) - -#define SRC_TEXEL_BYTES 4 - -#define TAG(x) x##_abgr8888_to_rgb565 -#include "texutil_tmp.h" - - -#define CONVERT_RGB565( name ) \ -static GLboolean \ -convert_##name##_rgb565( const struct convert_info *convert ) \ -{ \ - convert_func *tab; \ - GLint index = convert->index; \ - \ - if ( convert->format == GL_RGB && \ - convert->type == GL_UNSIGNED_SHORT_5_6_5 ) \ - { \ - tab = name##_tab_rgb565_direct; \ - } \ - else if ( convert->format == GL_RGB && \ - convert->type == GL_UNSIGNED_BYTE ) \ - { \ - tab = name##_tab_bgr888_to_rgb565; \ - } \ - else if ( convert->format == GL_RGBA && \ - convert->type == GL_UNSIGNED_BYTE ) \ - { \ - tab = name##_tab_abgr8888_to_rgb565; \ - } \ - else \ - { \ - /* Can't handle this source format/type combination */ \ - return GL_FALSE; \ - } \ - \ - return tab[index]( convert ); \ -} - -CONVERT_RGB565( texsubimage2d ) -CONVERT_RGB565( texsubimage3d ) - - - -/* ============================================================= - * Convert to ARGB4444 textures: - */ - -#define DST_TYPE GLushort -#define DST_TEXELS_PER_DWORD 2 - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_4444_LE( src[3], src[0], src[1], src[2] ) - -#define CONVERT_DIRECT - -#define SRC_TEXEL_BYTES 2 - -#define TAG(x) x##_argb4444_direct -#define PRESERVE_DST_TYPE -#include "texutil_tmp.h" - - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_4444_LE( src[3], src[0], src[1], src[2] ) - -#define CONVERT_TEXEL_DWORD( dst, src ) \ - dst = APPEND16( PACK_COLOR_4444_LE( src[3], src[0], src[1], src[2] ), \ - PACK_COLOR_4444_LE( src[7], src[4], src[5], src[6] ) ) - -#define SRC_TEXEL_BYTES 4 - -#define TAG(x) x##_abgr8888_to_argb4444 -#include "texutil_tmp.h" - - -#define CONVERT_ARGB4444( name ) \ -static GLboolean \ -convert_##name##_argb4444( const struct convert_info *convert ) \ -{ \ - convert_func *tab; \ - GLint index = convert->index; \ - \ - if ( convert->format == GL_BGRA && \ - convert->type == GL_UNSIGNED_SHORT_4_4_4_4_REV ) \ - { \ - tab = name##_tab_argb4444_direct; \ - } \ - else if ( convert->format == GL_RGBA && \ - convert->type == GL_UNSIGNED_BYTE ) \ - { \ - tab = name##_tab_abgr8888_to_argb4444; \ - } \ - else \ - { \ - /* Can't handle this source format/type combination */ \ - return GL_FALSE; \ - } \ - \ - return tab[index]( convert ); \ -} - -CONVERT_ARGB4444( texsubimage2d ) -CONVERT_ARGB4444( texsubimage3d ) - - - -/* ============================================================= - * Convert to ARGB1555 textures: - */ - -#define DST_TYPE GLushort -#define DST_TEXELS_PER_DWORD 2 - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_1555_LE( src[3], src[0], src[1], src[2] ) - -#define CONVERT_DIRECT - -#define SRC_TEXEL_BYTES 2 - -#define TAG(x) x##_argb1555_direct -#define PRESERVE_DST_TYPE -#include "texutil_tmp.h" - - -#ifdef MESA_BIG_ENDIAN - -#define CONVERT_TEXEL( dst, src ) \ - { const GLushort s = *(GLushort *)src; \ - dst = (s >> 9) | ((s & 0x1ff) << 7); } - -#define CONVERT_TEXEL_DWORD( dst, src ) \ - { const GLuint s = ((fi_type *)src)->i; \ - dst = (((s & 0xfe00fe00) >> 9) | \ - ((s & 0x01ff01ff) << 7)); } - -#else - -#define CONVERT_TEXEL( dst, src ) \ - { const GLushort s = *(GLushort *)src; \ - dst = (s >> 1) | ((s & 1) << 15); } - -#define CONVERT_TEXEL_DWORD( dst, src ) \ - { const GLuint s = ((fi_type *)src)->i; \ - dst = (((s & 0xfffefffe) >> 1) | \ - ((s & 0x00010001) << 15)); } - -#endif - -#define SRC_TEXEL_BYTES 2 - -#define TAG(x) x##_rgba5551_to_argb1555 -#define PRESERVE_DST_TYPE -#include "texutil_tmp.h" - - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_1555_LE( src[3], src[0], src[1], src[2] ) - -#define CONVERT_TEXEL_DWORD( dst, src ) \ - dst = APPEND16( PACK_COLOR_1555_LE( src[3], src[0], src[1], src[2] ), \ - PACK_COLOR_1555_LE( src[7], src[4], src[5], src[6] ) ) - -#define SRC_TEXEL_BYTES 4 - -#define TAG(x) x##_abgr8888_to_argb1555 -#include "texutil_tmp.h" - - -#define CONVERT_ARGB1555( name ) \ -static GLboolean \ -convert_##name##_argb1555( const struct convert_info *convert ) \ -{ \ - convert_func *tab; \ - GLint index = convert->index; \ - \ - if ( convert->format == GL_BGRA && \ - convert->type == GL_UNSIGNED_SHORT_1_5_5_5_REV ) \ - { \ - tab = name##_tab_argb1555_direct; \ - } \ - else if ( convert->format == GL_RGBA && \ - convert->type == GL_UNSIGNED_SHORT_5_5_5_1 ) \ - { \ - tab = name##_tab_rgba5551_to_argb1555; \ - } \ - else if ( convert->format == GL_RGBA && \ - convert->type == GL_UNSIGNED_BYTE ) \ - { \ - tab = name##_tab_abgr8888_to_argb1555; \ - } \ - else \ - { \ - /* Can't handle this source format/type combination */ \ - return GL_FALSE; \ - } \ - \ - return tab[index]( convert ); \ -} - -CONVERT_ARGB1555( texsubimage2d ) -CONVERT_ARGB1555( texsubimage3d ) - - - -/* ============================================================= - * AL88 textures: - */ - -#define DST_TYPE GLushort -#define DST_TEXELS_PER_DWORD 2 - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_88_LE( src[0], src[1] ) - -#define CONVERT_DIRECT - -#define SRC_TEXEL_BYTES 2 - -#define TAG(x) x##_al88_direct -#define PRESERVE_DST_TYPE -#include "texutil_tmp.h" - - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_88_LE( src[0], 0x00 ) - -#define CONVERT_TEXEL_DWORD( dst, src ) \ - dst = APPEND16( PACK_COLOR_88_LE( src[0], 0x00 ), \ - PACK_COLOR_88_LE( src[1], 0x00 ) ) - -#define SRC_TEXEL_BYTES 1 - -#define TAG(x) x##_a8_to_al88 -#define PRESERVE_DST_TYPE -#include "texutil_tmp.h" - - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_88_LE( 0xff, src[0] ) - -#define CONVERT_TEXEL_DWORD( dst, src ) \ - dst = APPEND16( PACK_COLOR_88_LE( 0xff, src[0] ), \ - PACK_COLOR_88_LE( 0xff, src[1] ) ) - -#define SRC_TEXEL_BYTES 1 - -#define TAG(x) x##_l8_to_al88 -#define PRESERVE_DST_TYPE -#include "texutil_tmp.h" - - -#define CONVERT_TEXEL( dst, src ) \ - dst = PACK_COLOR_88_LE( src[3], src[0] ) - -#define CONVERT_TEXEL_DWORD( dst, src ) \ - dst = APPEND16( PACK_COLOR_88_LE( src[3], src[0] ), \ - PACK_COLOR_88_LE( src[7], src[4] ) ) - -#define SRC_TEXEL_BYTES 4 - -#define TAG(x) x##_abgr8888_to_al88 -#include "texutil_tmp.h" - - -#define CONVERT_AL88( name ) \ -static GLboolean \ -convert_##name##_al88( const struct convert_info *convert ) \ -{ \ - convert_func *tab; \ - GLint index = convert->index; \ - \ - if ( convert->format == GL_LUMINANCE_ALPHA && \ - convert->type == GL_UNSIGNED_BYTE ) \ - { \ - tab = name##_tab_al88_direct; \ - } \ - else if ( convert->format == GL_ALPHA && \ - convert->type == GL_UNSIGNED_BYTE ) \ - { \ - tab = name##_tab_a8_to_al88; \ - } \ - else if ( convert->format == GL_LUMINANCE && \ - convert->type == GL_UNSIGNED_BYTE ) \ - { \ - tab = name##_tab_l8_to_al88; \ - } \ - else if ( convert->format == GL_RGBA && \ - convert->type == GL_UNSIGNED_BYTE ) \ - { \ - tab = name##_tab_abgr8888_to_al88; \ - } \ - else \ - { \ - /* Can't handle this source format/type combination */ \ - return GL_FALSE; \ - } \ - \ - return tab[index]( convert ); \ -} - -CONVERT_AL88( texsubimage2d ) -CONVERT_AL88( texsubimage3d ) - - - -/* ============================================================= - * Convert to RGB332 textures: - */ - -static GLboolean -convert_texsubimage2d_rgb332( const struct convert_info *convert ) -{ - /* This is a placeholder for now... - */ - return GL_FALSE; -} - -static GLboolean -convert_texsubimage3d_rgb332( const struct convert_info *convert ) -{ - /* This is a placeholder for now... - */ - return GL_FALSE; -} - - - -/* ============================================================= - * CI8 (and all other single-byte texel) textures: - */ - -#define DST_TYPE GLubyte -#define DST_TEXELS_PER_DWORD 4 - -#define CONVERT_TEXEL( dst, src ) dst = src[0] - -#define CONVERT_DIRECT - -#define SRC_TEXEL_BYTES 1 - -#define TAG(x) x##_ci8_direct -#include "texutil_tmp.h" - - -#define CONVERT_CI8( name ) \ -static GLboolean \ -convert_##name##_ci8( const struct convert_info *convert ) \ -{ \ - convert_func *tab; \ - GLint index = convert->index; \ - \ - if ( ( convert->format == GL_ALPHA || \ - convert->format == GL_LUMINANCE || \ - convert->format == GL_INTENSITY || \ - convert->format == GL_COLOR_INDEX ) && \ - convert->type == GL_UNSIGNED_BYTE ) \ - { \ - tab = name##_tab_ci8_direct; \ - } \ - else \ - { \ - /* Can't handle this source format/type combination */ \ - return GL_FALSE; \ - } \ - \ - return tab[index]( convert ); \ -} - -CONVERT_CI8( texsubimage2d ) -CONVERT_CI8( texsubimage3d ) - - -/* ============================================================= - * convert to YCBCR textures: - */ - -#define DST_TYPE GLushort -#define DST_TEXELS_PER_DWORD 2 - -#define CONVERT_TEXEL( dst, src ) \ - dst = (src[0] << 8) | src[1]; - -#define CONVERT_DIRECT - -#define SRC_TEXEL_BYTES 2 - -#define TAG(x) x##_ycbcr_direct -#include "texutil_tmp.h" - - -#define CONVERT_YCBCR( name ) \ -static GLboolean \ -convert_##name##_ycbcr( const struct convert_info *convert ) \ -{ \ - convert_func *tab; \ - GLint index = convert->index; \ - \ - if (convert->format != GL_YCBCR_MESA) { \ - /* Can't handle this source format/type combination */ \ - return GL_FALSE; \ - } \ - tab = name##_tab_ycbcr_direct; \ - \ - return tab[index]( convert ); \ -} - -CONVERT_YCBCR( texsubimage2d ) -CONVERT_YCBCR( texsubimage3d ) - - -/* ============================================================= - * convert to YCBCR_REV textures: - */ - -#define DST_TYPE GLushort -#define DST_TEXELS_PER_DWORD 2 - -#define CONVERT_TEXEL( dst, src ) \ - dst = (src[1] << 8) | src[0]; - -#define CONVERT_DIRECT - -#define SRC_TEXEL_BYTES 2 - -#define TAG(x) x##_ycbcr_rev_direct -#include "texutil_tmp.h" - - -#define CONVERT_YCBCR_REV( name ) \ -static GLboolean \ -convert_##name##_ycbcr_rev( const struct convert_info *convert ) \ -{ \ - convert_func *tab; \ - GLint index = convert->index; \ - \ - if (convert->format != GL_YCBCR_MESA) { \ - /* Can't handle this source format/type combination */ \ - return GL_FALSE; \ - } \ - tab = name##_tab_ycbcr_rev_direct; \ - \ - return tab[index]( convert ); \ -} - -CONVERT_YCBCR_REV( texsubimage2d ) -CONVERT_YCBCR_REV( texsubimage3d ) - - - -/* ============================================================= - * Global entry points - */ - -static convert_func convert_texsubimage2d_tab[] = { - convert_texsubimage2d_rgba8888, - convert_texsubimage2d_argb8888, - convert_texsubimage2d_rgb888, - convert_texsubimage2d_rgb565, - convert_texsubimage2d_argb4444, - convert_texsubimage2d_argb1555, - convert_texsubimage2d_al88, - convert_texsubimage2d_rgb332, - convert_texsubimage2d_ci8, /* These are all the same... */ - convert_texsubimage2d_ci8, - convert_texsubimage2d_ci8, - convert_texsubimage2d_ci8, - convert_texsubimage2d_ycbcr, - convert_texsubimage2d_ycbcr_rev, -}; - -static convert_func convert_texsubimage3d_tab[] = { - convert_texsubimage3d_rgba8888, - convert_texsubimage3d_argb8888, - convert_texsubimage3d_rgb888, - convert_texsubimage3d_rgb565, - convert_texsubimage3d_argb4444, - convert_texsubimage3d_argb1555, - convert_texsubimage3d_al88, - convert_texsubimage3d_rgb332, - convert_texsubimage3d_ci8, /* These are all the same... */ - convert_texsubimage3d_ci8, - convert_texsubimage3d_ci8, - convert_texsubimage3d_ci8, - convert_texsubimage3d_ycbcr, - convert_texsubimage3d_ycbcr_rev, -}; - - -/* See if we need to care about the pixel store attributes when we're - * converting the texture image. This should be stored as - * unpacking->_SomeBoolean and updated when the values change, to avoid - * testing every time... - */ -static INLINE GLboolean -convert_needs_unpacking( const struct gl_pixelstore_attrib *unpacking, - GLenum format, GLenum type ) -{ - if ( ( unpacking->Alignment == 1 || - ( unpacking->Alignment == 4 && /* Pick up the common Q3A case... */ - format == GL_RGBA && type == GL_UNSIGNED_BYTE ) ) && - unpacking->RowLength == 0 && - unpacking->SkipPixels == 0 && - unpacking->SkipRows == 0 && - unpacking->ImageHeight == 0 && - unpacking->SkipImages == 0 && - unpacking->SwapBytes == GL_FALSE && - unpacking->LsbFirst == GL_FALSE ) { - return GL_FALSE; - } else { - return GL_TRUE; - } -} - - -GLboolean -_mesa_convert_texsubimage1d( GLint mesaFormat, - GLint xoffset, - GLint width, - GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpacking, - const GLvoid *srcImage, GLvoid *dstImage ) -{ - struct convert_info convert; - - ASSERT( unpacking ); - ASSERT( srcImage ); - ASSERT( dstImage ); - - ASSERT( mesaFormat >= MESA_FORMAT_RGBA8888 ); - ASSERT( mesaFormat <= MESA_FORMAT_YCBCR_REV ); - - /* Make it easier to pass all the parameters around. - */ - convert.xoffset = xoffset; - convert.yoffset = 0; - convert.width = width; - convert.height = 1; - convert.format = format; - convert.type = type; - convert.unpacking = unpacking; - convert.srcImage = srcImage; - convert.dstImage = dstImage; - - convert.index = 0; - - if ( convert_needs_unpacking( unpacking, format, type ) ) - convert.index |= CONVERT_UNPACKING_BIT; - - ASSERT(convert.index < 4); - - return convert_texsubimage2d_tab[mesaFormat]( &convert ); -} - - -/* Convert a user's 2D image into a texture image. This basically - * repacks pixel data into the special texture formats used by core Mesa - * and the DRI drivers. This function can do full images or subimages. - * - * We return a boolean because this function may not accept some kinds - * of source image formats and/or types. For example, if the incoming - * format/type = GL_BGR, GL_UNSIGNED_INT this function probably won't - * be able to do the conversion. - * - * In that case, the incoming image should first be simplified to one of - * the "canonical" formats (GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, - * GL_INTENSITY, GL_RGB, GL_RGBA) and types (GL_CHAN). We can do that - * with the _mesa_transfer_teximage() function. That function will also - * do image transfer operations such as scale/bias and convolution. - * - * \param - * mesaFormat - one of the MESA_FORMAT_* values from texformat.h - * xoffset, yoffset - position in dest image to put data - * width, height - incoming image size, also size of dest region. - * dstImageWidth - width (row stride) of dest image in pixels - * format, type - incoming image format and type - * unpacking - describes incoming image unpacking - * srcImage - pointer to source image - * destImage - pointer to dest image - */ -GLboolean -_mesa_convert_texsubimage2d( GLint mesaFormat, /* dest */ - GLint xoffset, GLint yoffset, - GLint width, GLint height, - GLint destImageWidth, - GLenum format, GLenum type, /* source */ - const struct gl_pixelstore_attrib *unpacking, - const GLvoid *srcImage, GLvoid *dstImage ) -{ - struct convert_info convert; - - ASSERT( unpacking ); - ASSERT( srcImage ); - ASSERT( dstImage ); - - ASSERT( mesaFormat >= MESA_FORMAT_RGBA8888 ); - ASSERT( mesaFormat <= MESA_FORMAT_YCBCR_REV ); - - /* Make it easier to pass all the parameters around. - */ - convert.xoffset = xoffset; - convert.yoffset = yoffset; - convert.width = width; - convert.height = height; - convert.dstImageWidth = destImageWidth; - convert.format = format; - convert.type = type; - convert.unpacking = unpacking; - convert.srcImage = srcImage; - convert.dstImage = dstImage; - - convert.index = 0; - - if ( convert_needs_unpacking( unpacking, format, type ) ) - convert.index |= CONVERT_UNPACKING_BIT; - - if ( width != destImageWidth ) - convert.index |= CONVERT_STRIDE_BIT; - - return convert_texsubimage2d_tab[mesaFormat]( &convert ); -} - -GLboolean -_mesa_convert_texsubimage3d( GLint mesaFormat, /* dest */ - GLint xoffset, GLint yoffset, GLint zoffset, - GLint width, GLint height, GLint depth, - GLint dstImageWidth, GLint dstImageHeight, - GLenum format, GLenum type, /* source */ - const struct gl_pixelstore_attrib *unpacking, - const GLvoid *srcImage, GLvoid *dstImage ) -{ - struct convert_info convert; - - ASSERT( unpacking ); - ASSERT( srcImage ); - ASSERT( dstImage ); - - ASSERT( mesaFormat >= MESA_FORMAT_RGBA8888 ); - ASSERT( mesaFormat <= MESA_FORMAT_YCBCR_REV ); - - /* Make it easier to pass all the parameters around. - */ - convert.xoffset = xoffset; - convert.yoffset = yoffset; - convert.zoffset = zoffset; - convert.width = width; - convert.height = height; - convert.depth = depth; - convert.dstImageWidth = dstImageWidth; - convert.dstImageHeight = dstImageHeight; - convert.format = format; - convert.type = type; - convert.unpacking = unpacking; - convert.srcImage = srcImage; - convert.dstImage = dstImage; - - convert.index = 0; - - if ( convert_needs_unpacking( unpacking, format, type ) ) - convert.index |= CONVERT_UNPACKING_BIT; - - if ( width != dstImageWidth || height != dstImageHeight ) - convert.index |= CONVERT_STRIDE_BIT; - - return convert_texsubimage3d_tab[mesaFormat]( &convert ); -} - -#endif - - - -/* Nearest filtering only (for broken hardware that can't support - * all aspect ratios). This can be made a lot faster, but I don't - * really care enough... - */ -void _mesa_rescale_teximage2d( GLuint bytesPerPixel, GLuint dstRowStride, - GLint srcWidth, GLint srcHeight, - GLint dstWidth, GLint dstHeight, - const GLvoid *srcImage, GLvoid *dstImage ) -{ - GLint row, col; - -#define INNER_LOOP( TYPE, HOP, WOP ) \ - for ( row = 0 ; row < dstHeight ; row++ ) { \ - GLint srcRow = row HOP hScale; \ - for ( col = 0 ; col < dstWidth ; col++ ) { \ - GLint srcCol = col WOP wScale; \ - dst[col] = src[srcRow * srcWidth + srcCol]; \ - } \ - dst = (TYPE *) ((GLubyte *) dst + dstRowStride); \ - } \ - -#define RESCALE_IMAGE( TYPE ) \ -do { \ - const TYPE *src = (const TYPE *)srcImage; \ - TYPE *dst = (TYPE *)dstImage; \ - \ - if ( srcHeight < dstHeight ) { \ - const GLint hScale = dstHeight / srcHeight; \ - if ( srcWidth < dstWidth ) { \ - const GLint wScale = dstWidth / srcWidth; \ - INNER_LOOP( TYPE, /, / ); \ - } \ - else { \ - const GLint wScale = srcWidth / dstWidth; \ - INNER_LOOP( TYPE, /, * ); \ - } \ - } \ - else { \ - const GLint hScale = srcHeight / dstHeight; \ - if ( srcWidth < dstWidth ) { \ - const GLint wScale = dstWidth / srcWidth; \ - INNER_LOOP( TYPE, *, / ); \ - } \ - else { \ - const GLint wScale = srcWidth / dstWidth; \ - INNER_LOOP( TYPE, *, * ); \ - } \ - } \ -} while (0) - - switch ( bytesPerPixel ) { - case 4: - RESCALE_IMAGE( GLuint ); - break; - - case 2: - RESCALE_IMAGE( GLushort ); - break; - - case 1: - RESCALE_IMAGE( GLubyte ); - break; - default: - _mesa_problem(NULL,"unexpected bytes/pixel in _mesa_rescale_teximage2d"); - } -} |