* 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"),
if (all)
n += 1;
}
+#if FEATURE_EXT_texture_sRGB
+ if (ctx->Extensions.EXT_texture_sRGB) {
+ if (formats) {
+ if (all) {
+ /* according to sRGB spec, these should not be returned
+ via the GL_COMPRESSED_TEXTURE_FORMATS query as they
+ aren't really general purpose */
+ formats[n++] = GL_COMPRESSED_SRGB_S3TC_DXT1_EXT;
+ formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT;
+ formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;
+ formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;
+ }
+ }
+ else {
+ if (all)
+ n += 4;
+ }
+ }
+#endif /* FEATURE_EXT_texture_sRGB */
}
if (ctx->Extensions.S3_s3tc) {
if (formats) {
n += 4;
}
}
-#if FEATURE_EXT_texture_sRGB
- if (ctx->Extensions.EXT_texture_sRGB) {
- if (formats) {
- formats[n++] = GL_COMPRESSED_SRGB_S3TC_DXT1_EXT;
- formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT;
- formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;
- formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;
- }
- else {
- n += 4;
- }
- }
-#endif /* FEATURE_EXT_texture_sRGB */
}
return n;
}
#if FEATURE_texture_s3tc
case MESA_FORMAT_RGB_DXT1:
case MESA_FORMAT_RGBA_DXT1:
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SRGB_DXT1:
+ case MESA_FORMAT_SRGBA_DXT1:
+#endif
/* round up width, height to next multiple of 4 */
width = (width + 3) & ~3;
height = (height + 3) & ~3;
return size;
case MESA_FORMAT_RGBA_DXT3:
case MESA_FORMAT_RGBA_DXT5:
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SRGBA_DXT3:
+ case MESA_FORMAT_SRGBA_DXT5:
+#endif
/* round up width, height to next multiple of 4 */
width = (width + 3) & ~3;
height = (height + 3) & ~3;
case GL_RGBA4_S3TC:
mesaFormat = MESA_FORMAT_RGBA_DXT5;
break;
+#if FEATURE_EXT_texture_sRGB
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ mesaFormat = MESA_FORMAT_SRGB_DXT1;
+ break;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ mesaFormat = MESA_FORMAT_SRGBA_DXT1;
+ break;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ mesaFormat = MESA_FORMAT_SRGBA_DXT3;
+ break;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ mesaFormat = MESA_FORMAT_SRGBA_DXT5;
+ break;
+#endif
#endif
default:
return 0;
#if FEATURE_texture_s3tc
case MESA_FORMAT_RGB_DXT1:
case MESA_FORMAT_RGBA_DXT1:
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SRGB_DXT1:
+ case MESA_FORMAT_SRGBA_DXT1:
+#endif
stride = ((width + 3) / 4) * 8; /* 8 bytes per 4x4 tile */
break;
case MESA_FORMAT_RGBA_DXT3:
case MESA_FORMAT_RGBA_DXT5:
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SRGBA_DXT3:
+ case MESA_FORMAT_SRGBA_DXT5:
+#endif
stride = ((width + 3) / 4) * 16; /* 16 bytes per 4x4 tile */
break;
#endif
#if FEATURE_texture_s3tc
case MESA_FORMAT_RGB_DXT1:
case MESA_FORMAT_RGBA_DXT1:
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SRGB_DXT1:
+ case MESA_FORMAT_SRGBA_DXT1:
+#endif
addr = (GLubyte *) image + 8 * (((width + 3) / 4) * (row / 4) + col / 4);
break;
case MESA_FORMAT_RGBA_DXT3:
case MESA_FORMAT_RGBA_DXT5:
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SRGBA_DXT3:
+ case MESA_FORMAT_SRGBA_DXT5:
+#endif
addr = (GLubyte *) image + 16 * (((width + 3) / 4) * (row / 4) + col / 4);
break;
#endif
* Version: 6.5.3
*
* Copyright (C) 1999-2007 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"),
#define DXTN_LIBNAME "libtxc_dxtn.so"
#endif
+#if FEATURE_EXT_texture_sRGB
+/**
+ * Convert an 8-bit sRGB value from non-linear space to a
+ * linear RGB value in [0, 1].
+ * Implemented with a 256-entry lookup table.
+ */
+static INLINE GLfloat
+nonlinear_to_linear(GLubyte cs8)
+{
+ static GLfloat table[256];
+ static GLboolean tableReady = GL_FALSE;
+ if (!tableReady) {
+ /* compute lookup table now */
+ GLuint i;
+ for (i = 0; i < 256; i++) {
+ const GLfloat cs = UBYTE_TO_FLOAT(i);
+ if (cs <= 0.04045) {
+ table[i] = cs / 12.92f;
+ }
+ else {
+ table[i] = (GLfloat) _mesa_pow((cs + 0.055) / 1.055, 2.4);
+ }
+ }
+ tableReady = GL_TRUE;
+ }
+ return table[cs8];
+}
+#endif /* FEATURE_EXT_texture_sRGB */
typedef void (*dxtFetchTexelFuncExt)( GLint srcRowstride, GLubyte *pixdata, GLint col, GLint row, GLvoid *texelOut );
texel[ACOMP] = CHAN_TO_FLOAT(rgba[ACOMP]);
}
+#if FEATURE_EXT_texture_sRGB
+static void
+fetch_texel_2d_f_srgb_dxt1( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ /* just sample as GLchan and convert to float here */
+ GLchan rgba[4];
+ fetch_texel_2d_rgb_dxt1(texImage, i, j, k, rgba);
+ texel[RCOMP] = nonlinear_to_linear(rgba[RCOMP]);
+ texel[GCOMP] = nonlinear_to_linear(rgba[GCOMP]);
+ texel[BCOMP] = nonlinear_to_linear(rgba[BCOMP]);
+ texel[ACOMP] = CHAN_TO_FLOAT(rgba[ACOMP]);
+}
+
+static void
+fetch_texel_2d_f_srgba_dxt1( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ /* just sample as GLchan and convert to float here */
+ GLchan rgba[4];
+ fetch_texel_2d_rgba_dxt1(texImage, i, j, k, rgba);
+ texel[RCOMP] = nonlinear_to_linear(rgba[RCOMP]);
+ texel[GCOMP] = nonlinear_to_linear(rgba[GCOMP]);
+ texel[BCOMP] = nonlinear_to_linear(rgba[BCOMP]);
+ texel[ACOMP] = CHAN_TO_FLOAT(rgba[ACOMP]);
+}
+
+static void
+fetch_texel_2d_f_srgba_dxt3( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ /* just sample as GLchan and convert to float here */
+ GLchan rgba[4];
+ fetch_texel_2d_rgba_dxt3(texImage, i, j, k, rgba);
+ texel[RCOMP] = nonlinear_to_linear(rgba[RCOMP]);
+ texel[GCOMP] = nonlinear_to_linear(rgba[GCOMP]);
+ texel[BCOMP] = nonlinear_to_linear(rgba[BCOMP]);
+ texel[ACOMP] = CHAN_TO_FLOAT(rgba[ACOMP]);
+}
+
+static void
+fetch_texel_2d_f_srgba_dxt5( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ /* just sample as GLchan and convert to float here */
+ GLchan rgba[4];
+ fetch_texel_2d_rgba_dxt5(texImage, i, j, k, rgba);
+ texel[RCOMP] = nonlinear_to_linear(rgba[RCOMP]);
+ texel[GCOMP] = nonlinear_to_linear(rgba[GCOMP]);
+ texel[BCOMP] = nonlinear_to_linear(rgba[BCOMP]);
+ texel[ACOMP] = CHAN_TO_FLOAT(rgba[ACOMP]);
+}
+#endif
const struct gl_texture_format _mesa_texformat_rgb_dxt1 = {
MESA_FORMAT_RGB_DXT1, /* MesaFormat */
NULL /* StoreTexel */
};
+const struct gl_texture_format _mesa_texformat_rgba_dxt1 = {
+ MESA_FORMAT_RGBA_DXT1, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 4, /*approx*/ /* RedBits */
+ 4, /*approx*/ /* GreenBits */
+ 4, /*approx*/ /* BlueBits */
+ 1, /*approx*/ /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 0, /* TexelBytes */
+ texstore_rgba_dxt1, /* StoreTexImageFunc */
+ NULL, /*impossible*/ /* FetchTexel1D */
+ fetch_texel_2d_rgba_dxt1, /* FetchTexel2D */
+ NULL, /*impossible*/ /* FetchTexel3D */
+ NULL, /*impossible*/ /* FetchTexel1Df */
+ fetch_texel_2d_f_rgba_dxt1, /* FetchTexel2Df */
+ NULL, /*impossible*/ /* FetchTexel3Df */
+ NULL /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_rgba_dxt3 = {
+ MESA_FORMAT_RGBA_DXT3, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 4, /*approx*/ /* RedBits */
+ 4, /*approx*/ /* GreenBits */
+ 4, /*approx*/ /* BlueBits */
+ 4, /*approx*/ /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 0, /* TexelBytes */
+ texstore_rgba_dxt3, /* StoreTexImageFunc */
+ NULL, /*impossible*/ /* FetchTexel1D */
+ fetch_texel_2d_rgba_dxt3, /* FetchTexel2D */
+ NULL, /*impossible*/ /* FetchTexel3D */
+ NULL, /*impossible*/ /* FetchTexel1Df */
+ fetch_texel_2d_f_rgba_dxt3, /* FetchTexel2Df */
+ NULL, /*impossible*/ /* FetchTexel3Df */
+ NULL /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_rgba_dxt5 = {
+ MESA_FORMAT_RGBA_DXT5, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 4,/*approx*/ /* RedBits */
+ 4,/*approx*/ /* GreenBits */
+ 4,/*approx*/ /* BlueBits */
+ 4,/*approx*/ /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 0, /* TexelBytes */
+ texstore_rgba_dxt5, /* StoreTexImageFunc */
+ NULL, /*impossible*/ /* FetchTexel1D */
+ fetch_texel_2d_rgba_dxt5, /* FetchTexel2D */
+ NULL, /*impossible*/ /* FetchTexel3D */
+ NULL, /*impossible*/ /* FetchTexel1Df */
+ fetch_texel_2d_f_rgba_dxt5, /* FetchTexel2Df */
+ NULL, /*impossible*/ /* FetchTexel3Df */
+ NULL /* StoreTexel */
+};
+
#if FEATURE_EXT_texture_sRGB
const struct gl_texture_format _mesa_texformat_srgb_dxt1 = {
MESA_FORMAT_SRGB_DXT1, /* MesaFormat */
0, /* TexelBytes */
texstore_rgb_dxt1, /* StoreTexImageFunc */
NULL, /*impossible*/ /* FetchTexel1D */
- fetch_texel_2d_rgb_dxt1, /* FetchTexel2D */
+ NULL, /* FetchTexel2D */
NULL, /*impossible*/ /* FetchTexel3D */
NULL, /*impossible*/ /* FetchTexel1Df */
- fetch_texel_2d_f_rgb_dxt1, /* FetchTexel2Df */
+ fetch_texel_2d_f_srgb_dxt1, /* FetchTexel2Df */
NULL, /*impossible*/ /* FetchTexel3Df */
NULL /* StoreTexel */
};
-#endif
-const struct gl_texture_format _mesa_texformat_rgba_dxt1 = {
- MESA_FORMAT_RGBA_DXT1, /* MesaFormat */
+const struct gl_texture_format _mesa_texformat_srgba_dxt1 = {
+ MESA_FORMAT_SRGBA_DXT1, /* MesaFormat */
GL_RGBA, /* BaseFormat */
GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
4, /*approx*/ /* RedBits */
0, /* TexelBytes */
texstore_rgba_dxt1, /* StoreTexImageFunc */
NULL, /*impossible*/ /* FetchTexel1D */
- fetch_texel_2d_rgba_dxt1, /* FetchTexel2D */
+ NULL, /* FetchTexel2D */
NULL, /*impossible*/ /* FetchTexel3D */
NULL, /*impossible*/ /* FetchTexel1Df */
- fetch_texel_2d_f_rgba_dxt1, /* FetchTexel2Df */
+ fetch_texel_2d_f_srgba_dxt1, /* FetchTexel2Df */
NULL, /*impossible*/ /* FetchTexel3Df */
NULL /* StoreTexel */
};
-const struct gl_texture_format _mesa_texformat_rgba_dxt3 = {
- MESA_FORMAT_RGBA_DXT3, /* MesaFormat */
+const struct gl_texture_format _mesa_texformat_srgba_dxt3 = {
+ MESA_FORMAT_SRGBA_DXT3, /* MesaFormat */
GL_RGBA, /* BaseFormat */
GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
4, /*approx*/ /* RedBits */
0, /* TexelBytes */
texstore_rgba_dxt3, /* StoreTexImageFunc */
NULL, /*impossible*/ /* FetchTexel1D */
- fetch_texel_2d_rgba_dxt3, /* FetchTexel2D */
+ NULL, /* FetchTexel2D */
NULL, /*impossible*/ /* FetchTexel3D */
NULL, /*impossible*/ /* FetchTexel1Df */
- fetch_texel_2d_f_rgba_dxt3, /* FetchTexel2Df */
+ fetch_texel_2d_f_srgba_dxt3, /* FetchTexel2Df */
NULL, /*impossible*/ /* FetchTexel3Df */
NULL /* StoreTexel */
};
-const struct gl_texture_format _mesa_texformat_rgba_dxt5 = {
- MESA_FORMAT_RGBA_DXT5, /* MesaFormat */
+const struct gl_texture_format _mesa_texformat_srgba_dxt5 = {
+ MESA_FORMAT_SRGBA_DXT5, /* MesaFormat */
GL_RGBA, /* BaseFormat */
GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
4,/*approx*/ /* RedBits */
0, /* TexelBytes */
texstore_rgba_dxt5, /* StoreTexImageFunc */
NULL, /*impossible*/ /* FetchTexel1D */
- fetch_texel_2d_rgba_dxt5, /* FetchTexel2D */
+ NULL, /* FetchTexel2D */
NULL, /*impossible*/ /* FetchTexel3D */
NULL, /*impossible*/ /* FetchTexel1Df */
- fetch_texel_2d_f_rgba_dxt5, /* FetchTexel2Df */
+ fetch_texel_2d_f_srgba_dxt5, /* FetchTexel2Df */
NULL, /*impossible*/ /* FetchTexel3Df */
NULL /* StoreTexel */
};
+#endif
* 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"),
store_texel_srgba8 /* StoreTexel */
};
+const struct gl_texture_format _mesa_texformat_sargb8 = {
+ MESA_FORMAT_SARGB8, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 8, /* RedBits */
+ 8, /* GreenBits */
+ 8, /* BlueBits */
+ 8, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 4, /* TexelBytes */
+ _mesa_texstore_sargb8, /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel2D */
+ NULL, /* FetchTexel3D */
+ fetch_texel_1d_sargb8, /* FetchTexel1Df */
+ fetch_texel_2d_sargb8, /* FetchTexel2Df */
+ fetch_texel_3d_sargb8, /* FetchTexel3Df */
+ store_texel_sargb8 /* StoreTexel */
+};
+
const struct gl_texture_format _mesa_texformat_sl8 = {
MESA_FORMAT_SL8, /* MesaFormat */
GL_LUMINANCE, /* BaseFormat */
case GL_SLUMINANCE_ALPHA_EXT:
case GL_SLUMINANCE8_ALPHA8_EXT:
return &_mesa_texformat_sla8;
- /* NOTE: not supporting any compression of sRGB at this time */
- case GL_COMPRESSED_SRGB_EXT:
- return &_mesa_texformat_srgb8;
- case GL_COMPRESSED_SRGB_ALPHA_EXT:
- return &_mesa_texformat_srgba8;
case GL_COMPRESSED_SLUMINANCE_EXT:
return &_mesa_texformat_sl8;
case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
return &_mesa_texformat_sla8;
- case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_EXT:
+#if FEATURE_texture_s3tc
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ return &_mesa_texformat_srgb_dxt1;
+#endif
return &_mesa_texformat_srgb8;
+ case GL_COMPRESSED_SRGB_ALPHA_EXT:
+#if FEATURE_texture_s3tc
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ return &_mesa_texformat_srgba_dxt3; /* Not srgba_dxt1, see spec */
+#endif
+ return &_mesa_texformat_srgba8;
+#if FEATURE_texture_s3tc
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ return &_mesa_texformat_srgb_dxt1;
+ break;
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ return &_mesa_texformat_srgba_dxt1;
+ break;
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ return &_mesa_texformat_srgba_dxt3;
+ break;
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
- return &_mesa_texformat_srgba8;
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ return &_mesa_texformat_srgba_dxt5;
+ break;
+#endif
default:
; /* fallthrough */
}
*comps = 3;
return;
case MESA_FORMAT_SRGBA8:
+ case MESA_FORMAT_SARGB8:
*datatype = GL_UNSIGNED_BYTE;
*comps = 4;
return;
case MESA_FORMAT_RGBA_DXT1:
case MESA_FORMAT_RGBA_DXT3:
case MESA_FORMAT_RGBA_DXT5:
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SRGB_DXT1:
+ case MESA_FORMAT_SRGBA_DXT1:
+ case MESA_FORMAT_SRGBA_DXT3:
+ case MESA_FORMAT_SRGBA_DXT5:
+#endif
/* XXX generate error instead? */
*datatype = GL_UNSIGNED_BYTE;
*comps = 0;
* 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"),
/*@{*/
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
/*@{*/
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
* 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"),
dst[0] = rgba[RCOMP];
dst[1] = rgba[GCOMP];
dst[2] = rgba[BCOMP];
+ dst[3] = rgba[ACOMP];
+}
+#endif
+
+/* Fetch texel from 1D, 2D or 3D sargb8 texture, return 4 GLfloats */
+static void FETCH(sargb8)(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4);
+ texel[RCOMP] = nonlinear_to_linear(src[1]);
+ texel[GCOMP] = nonlinear_to_linear(src[2]);
+ texel[BCOMP] = nonlinear_to_linear(src[3]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(src[0]); /* linear! */
+}
+
+#if DIM == 3
+static void store_texel_sargb8(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
+{
+ const GLubyte *rgba = (const GLubyte *) texel;
+ GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4);
+ dst[0] = rgba[ACOMP];
+ dst[1] = rgba[RCOMP];
+ dst[2] = rgba[GCOMP];
+ dst[3] = rgba[BCOMP];
}
#endif
* Version: 7.3
*
* Copyright (C) 1999-2008 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"),
GLboolean
_mesa_texstore_srgb8(TEXSTORE_PARAMS)
{
- const GLboolean littleEndian = _mesa_little_endian();
const struct gl_texture_format *newDstFormat;
StoreTexImageFunc store;
GLboolean k;
ASSERT(dstFormat == &_mesa_texformat_srgb8);
/* reuse normal rgb texstore code */
- if (littleEndian) {
- newDstFormat = &_mesa_texformat_bgr888;
- store = _mesa_texstore_bgr888;
- }
- else {
- newDstFormat = &_mesa_texformat_rgb888;
- store = _mesa_texstore_rgb888;
- }
+ newDstFormat = &_mesa_texformat_rgb888;
+ store = _mesa_texstore_rgb888;
k = store(ctx, dims, baseInternalFormat,
newDstFormat, dstAddr,
GLboolean
_mesa_texstore_srgba8(TEXSTORE_PARAMS)
{
- const GLboolean littleEndian = _mesa_little_endian();
const struct gl_texture_format *newDstFormat;
GLboolean k;
ASSERT(dstFormat == &_mesa_texformat_srgba8);
/* reuse normal rgba texstore code */
- if (littleEndian)
- newDstFormat = &_mesa_texformat_rgba8888_rev;
- else
- newDstFormat = &_mesa_texformat_rgba8888;
+ newDstFormat = &_mesa_texformat_rgba8888;
k = _mesa_texstore_rgba8888(ctx, dims, baseInternalFormat,
newDstFormat, dstAddr,
}
+GLboolean
+_mesa_texstore_sargb8(TEXSTORE_PARAMS)
+{
+ const struct gl_texture_format *newDstFormat;
+ GLboolean k;
+
+ ASSERT(dstFormat == &_mesa_texformat_sargb8);
+
+ /* reuse normal rgba texstore code */
+ newDstFormat = &_mesa_texformat_argb8888;
+
+ k = _mesa_texstore_argb8888(ctx, dims, baseInternalFormat,
+ newDstFormat, dstAddr,
+ dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType,
+ srcAddr, srcPacking);
+ return k;
+}
+
+
GLboolean
_mesa_texstore_sl8(TEXSTORE_PARAMS)
{
GLboolean
_mesa_texstore_sla8(TEXSTORE_PARAMS)
{
- const GLboolean littleEndian = _mesa_little_endian();
const struct gl_texture_format *newDstFormat;
GLboolean k;
ASSERT(dstFormat == &_mesa_texformat_sla8);
/* reuse normal luminance/alpha texstore code */
- if (littleEndian)
- newDstFormat = &_mesa_texformat_al88;
- else
- newDstFormat = &_mesa_texformat_al88_rev;
+ newDstFormat = &_mesa_texformat_al88;
k = _mesa_texstore_al88(ctx, dims, baseInternalFormat,
newDstFormat, dstAddr,
switch (texImage->TexFormat->MesaFormat) {
case MESA_FORMAT_SRGB8:
case MESA_FORMAT_SRGBA8:
+ case MESA_FORMAT_SARGB8:
case MESA_FORMAT_SL8:
case MESA_FORMAT_SLA8:
return GL_TRUE;
MEMCPY(dest,
(const GLubyte *) texImage->Data + row * rowstride,
comps * width * sizeof(GLubyte));
+ /* FIXME: isn't it necessary to still do component assigning
+ according to format/type? */
+ /* FIXME: need to do something else for compressed srgb textures
+ (currently will return values converted to linear) */
}
#endif /* FEATURE_EXT_texture_sRGB */
else {
* 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"),
#if FEATURE_EXT_texture_sRGB
extern GLboolean _mesa_texstore_srgb8(TEXSTORE_PARAMS);
extern GLboolean _mesa_texstore_srgba8(TEXSTORE_PARAMS);
+extern GLboolean _mesa_texstore_sargb8(TEXSTORE_PARAMS);
extern GLboolean _mesa_texstore_sl8(TEXSTORE_PARAMS);
extern GLboolean _mesa_texstore_sla8(TEXSTORE_PARAMS);
#endif
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