diff options
Diffstat (limited to 'src/mesa/main/texutil.c')
| -rw-r--r-- | src/mesa/main/texutil.c | 163 |
1 files changed, 127 insertions, 36 deletions
diff --git a/src/mesa/main/texutil.c b/src/mesa/main/texutil.c index 97e9c4561b..75bd3b2263 100644 --- a/src/mesa/main/texutil.c +++ b/src/mesa/main/texutil.c @@ -1,4 +1,4 @@ -/* $Id: texutil.c,v 1.30 2002/06/12 00:53:24 brianp Exp $ */ +/* $Id: texutil.c,v 1.31 2002/09/21 16:51:25 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -27,6 +27,14 @@ * Gareth Hughes <gareth@valinux.com> */ +/* + * 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. + */ + + #ifdef PC_HEADER #include "all.h" #else @@ -51,7 +59,7 @@ #endif -struct gl_texture_convert { +struct convert_info { GLint xoffset, yoffset, zoffset; /* Subimage offset */ GLint width, height, depth; /* Subimage region */ @@ -67,15 +75,16 @@ struct gl_texture_convert { GLint index; }; -typedef GLboolean (*convert_func)( struct gl_texture_convert *convert ); +typedef GLboolean (*convert_func)( const struct convert_info *convert ); +/* bitvalues for convert->index */ #define CONVERT_STRIDE_BIT 0x1 #define CONVERT_UNPACKING_BIT 0x2 /* ============================================================= - * RGBA8888 textures: + * Convert to RGBA8888 textures: */ #define DST_TYPE GLuint @@ -118,7 +127,7 @@ typedef GLboolean (*convert_func)( struct gl_texture_convert *convert ); #define CONVERT_RGBA8888( name ) \ static GLboolean \ -convert_##name##_rgba8888( struct gl_texture_convert *convert ) \ +convert_##name##_rgba8888( const struct convert_info *convert ) \ { \ convert_func *tab; \ GLint index = convert->index; \ @@ -154,7 +163,7 @@ CONVERT_RGBA8888( texsubimage3d ) /* ============================================================= - * ARGB8888 textures: + * Convert to ARGB8888 textures: */ #define DST_TYPE GLuint @@ -197,7 +206,7 @@ CONVERT_RGBA8888( texsubimage3d ) #define CONVERT_ARGB8888( name ) \ static GLboolean \ -convert_##name##_argb8888( struct gl_texture_convert *convert ) \ +convert_##name##_argb8888( const struct convert_info *convert ) \ { \ convert_func *tab; \ GLint index = convert->index; \ @@ -232,11 +241,11 @@ CONVERT_ARGB8888( texsubimage3d ) /* ============================================================= - * RGB888 textures: + * Convert to RGB888 textures: */ static GLboolean -convert_texsubimage2d_rgb888( struct gl_texture_convert *convert ) +convert_texsubimage2d_rgb888( const struct convert_info *convert ) { /* This is a placeholder for now... */ @@ -244,7 +253,7 @@ convert_texsubimage2d_rgb888( struct gl_texture_convert *convert ) } static GLboolean -convert_texsubimage3d_rgb888( struct gl_texture_convert *convert ) +convert_texsubimage3d_rgb888( const struct convert_info *convert ) { /* This is a placeholder for now... */ @@ -254,7 +263,7 @@ convert_texsubimage3d_rgb888( struct gl_texture_convert *convert ) /* ============================================================= - * RGB565 textures: + * Convert to RGB565 textures: */ #define DST_TYPE GLushort @@ -301,7 +310,7 @@ convert_texsubimage3d_rgb888( struct gl_texture_convert *convert ) #define CONVERT_RGB565( name ) \ static GLboolean \ -convert_##name##_rgb565( struct gl_texture_convert *convert ) \ +convert_##name##_rgb565( const struct convert_info *convert ) \ { \ convert_func *tab; \ GLint index = convert->index; \ @@ -336,7 +345,7 @@ CONVERT_RGB565( texsubimage3d ) /* ============================================================= - * ARGB4444 textures: + * Convert to ARGB4444 textures: */ #define DST_TYPE GLushort @@ -369,7 +378,7 @@ CONVERT_RGB565( texsubimage3d ) #define CONVERT_ARGB4444( name ) \ static GLboolean \ -convert_##name##_argb4444( struct gl_texture_convert *convert ) \ +convert_##name##_argb4444( const struct convert_info *convert ) \ { \ convert_func *tab; \ GLint index = convert->index; \ @@ -399,7 +408,7 @@ CONVERT_ARGB4444( texsubimage3d ) /* ============================================================= - * ARGB1555 textures: + * Convert to ARGB1555 textures: */ #define DST_TYPE GLushort @@ -463,7 +472,7 @@ CONVERT_ARGB4444( texsubimage3d ) #define CONVERT_ARGB1555( name ) \ static GLboolean \ -convert_##name##_argb1555( struct gl_texture_convert *convert ) \ +convert_##name##_argb1555( const struct convert_info *convert ) \ { \ convert_func *tab; \ GLint index = convert->index; \ @@ -559,7 +568,7 @@ CONVERT_ARGB1555( texsubimage3d ) #define CONVERT_AL88( name ) \ static GLboolean \ -convert_##name##_al88( struct gl_texture_convert *convert ) \ +convert_##name##_al88( const struct convert_info *convert ) \ { \ convert_func *tab; \ GLint index = convert->index; \ @@ -599,11 +608,11 @@ CONVERT_AL88( texsubimage3d ) /* ============================================================= - * RGB332 textures: + * Convert to RGB332 textures: */ static GLboolean -convert_texsubimage2d_rgb332( struct gl_texture_convert *convert ) +convert_texsubimage2d_rgb332( const struct convert_info *convert ) { /* This is a placeholder for now... */ @@ -611,7 +620,7 @@ convert_texsubimage2d_rgb332( struct gl_texture_convert *convert ) } static GLboolean -convert_texsubimage3d_rgb332( struct gl_texture_convert *convert ) +convert_texsubimage3d_rgb332( const struct convert_info *convert ) { /* This is a placeholder for now... */ @@ -639,7 +648,7 @@ convert_texsubimage3d_rgb332( struct gl_texture_convert *convert ) #define CONVERT_CI8( name ) \ static GLboolean \ -convert_##name##_ci8( struct gl_texture_convert *convert ) \ +convert_##name##_ci8( const struct convert_info *convert ) \ { \ convert_func *tab; \ GLint index = convert->index; \ @@ -665,12 +674,88 @@ 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 gl_convert_texsubimage2d_tab[] = { +static convert_func convert_texsubimage2d_tab[] = { convert_texsubimage2d_rgba8888, convert_texsubimage2d_argb8888, convert_texsubimage2d_rgb888, @@ -683,9 +768,11 @@ static convert_func gl_convert_texsubimage2d_tab[] = { convert_texsubimage2d_ci8, convert_texsubimage2d_ci8, convert_texsubimage2d_ci8, + convert_texsubimage2d_ycbcr, + convert_texsubimage2d_ycbcr_rev, }; -static convert_func gl_convert_texsubimage3d_tab[] = { +static convert_func convert_texsubimage3d_tab[] = { convert_texsubimage3d_rgba8888, convert_texsubimage3d_argb8888, convert_texsubimage3d_rgb888, @@ -698,6 +785,8 @@ static convert_func gl_convert_texsubimage3d_tab[] = { convert_texsubimage3d_ci8, convert_texsubimage3d_ci8, convert_texsubimage3d_ci8, + convert_texsubimage3d_ycbcr, + convert_texsubimage3d_ycbcr_rev, }; @@ -735,14 +824,14 @@ _mesa_convert_texsubimage1d( GLint mesaFormat, const struct gl_pixelstore_attrib *unpacking, const GLvoid *srcImage, GLvoid *dstImage ) { - struct gl_texture_convert convert; + struct convert_info convert; ASSERT( unpacking ); ASSERT( srcImage ); ASSERT( dstImage ); ASSERT( mesaFormat >= MESA_FORMAT_RGBA8888 ); - ASSERT( mesaFormat <= MESA_FORMAT_CI8 ); + ASSERT( mesaFormat <= MESA_FORMAT_YCBCR_REV ); /* Make it easier to pass all the parameters around. */ @@ -761,7 +850,9 @@ _mesa_convert_texsubimage1d( GLint mesaFormat, if ( convert_needs_unpacking( unpacking, format, type ) ) convert.index |= CONVERT_UNPACKING_BIT; - return gl_convert_texsubimage2d_tab[mesaFormat]( &convert ); + ASSERT(convert.index < 4); + + return convert_texsubimage2d_tab[mesaFormat]( &convert ); } @@ -791,22 +882,22 @@ _mesa_convert_texsubimage1d( GLint mesaFormat, * destImage - pointer to dest image */ GLboolean -_mesa_convert_texsubimage2d( GLint mesaFormat, +_mesa_convert_texsubimage2d( GLint mesaFormat, /* dest */ GLint xoffset, GLint yoffset, GLint width, GLint height, GLint destImageWidth, - GLenum format, GLenum type, + GLenum format, GLenum type, /* source */ const struct gl_pixelstore_attrib *unpacking, const GLvoid *srcImage, GLvoid *dstImage ) { - struct gl_texture_convert convert; + struct convert_info convert; ASSERT( unpacking ); ASSERT( srcImage ); ASSERT( dstImage ); ASSERT( mesaFormat >= MESA_FORMAT_RGBA8888 ); - ASSERT( mesaFormat <= MESA_FORMAT_CI8 ); + ASSERT( mesaFormat <= MESA_FORMAT_YCBCR_REV ); /* Make it easier to pass all the parameters around. */ @@ -829,26 +920,26 @@ _mesa_convert_texsubimage2d( GLint mesaFormat, if ( width != destImageWidth ) convert.index |= CONVERT_STRIDE_BIT; - return gl_convert_texsubimage2d_tab[mesaFormat]( &convert ); + return convert_texsubimage2d_tab[mesaFormat]( &convert ); } GLboolean -_mesa_convert_texsubimage3d( GLint mesaFormat, +_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, + GLenum format, GLenum type, /* source */ const struct gl_pixelstore_attrib *unpacking, const GLvoid *srcImage, GLvoid *dstImage ) { - struct gl_texture_convert convert; + struct convert_info convert; ASSERT( unpacking ); ASSERT( srcImage ); ASSERT( dstImage ); ASSERT( mesaFormat >= MESA_FORMAT_RGBA8888 ); - ASSERT( mesaFormat <= MESA_FORMAT_CI8 ); + ASSERT( mesaFormat <= MESA_FORMAT_YCBCR_REV ); /* Make it easier to pass all the parameters around. */ @@ -874,7 +965,7 @@ _mesa_convert_texsubimage3d( GLint mesaFormat, if ( width != dstImageWidth || height != dstImageHeight ) convert.index |= CONVERT_STRIDE_BIT; - return gl_convert_texsubimage3d_tab[mesaFormat]( &convert ); + return convert_texsubimage3d_tab[mesaFormat]( &convert ); } |