/*
* Mesa 3-D graphics library
- * Version: 6.5
+ * Version: 6.5.1
*
- * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2006 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"),
#elif DIM == 3
#define TEXEL_ADDR( type, image, i, j, k, size ) \
- ((type *)(image)->Data + (((image)->Height * (k) + (j)) * \
- (image)->RowStride + (i)) * (size))
+ ((type *)(image)->Data + ((image)->ImageOffsets[k] \
+ + (image)->RowStride * (j) + (i)) * (size))
#define FETCH(x) fetch_texel_3d_##x
texel[ACOMP] = src[0];
}
-/* Fetch texel from 1D, 2D or 3D ALPHA texture, returning 4 GLfloats */
-static void FETCH(f_alpha)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLchan *src = TEXEL_ADDR(GLchan, texImage, i, j, k, 1);
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] = 0.0;
- texel[ACOMP] = CHAN_TO_FLOAT(src[0]);
-}
-
#if DIM == 3
static void store_texel_alpha(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = CHAN_MAX;
}
-/* Fetch texel from 1D, 2D or 3D LUMIN texture, returning 4 GLfloats */
-static void FETCH(f_luminance)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLchan *src = TEXEL_ADDR(GLchan, texImage, i, j, k, 1);
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] = CHAN_TO_FLOAT(src[0]);
- texel[ACOMP] = 1.0F;
-}
-
#if DIM == 3
static void store_texel_luminance(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = src[1];
}
-/* Fetch texel from 1D, 2D or 3D L_A texture, returning 4 GLfloats */
-static void FETCH(f_luminance_alpha)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLchan *src = TEXEL_ADDR(GLchan, texImage, i, j, k, 2);
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] = CHAN_TO_FLOAT(src[0]);
- texel[ACOMP] = CHAN_TO_FLOAT(src[1]);
-}
-
#if DIM == 3
static void store_texel_luminance_alpha(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = src[0];
}
-/* Fetch texel from 1D, 2D or 3D INT. texture, returning 4 GLfloats */
-static void FETCH(f_intensity)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLchan *src = TEXEL_ADDR(GLchan, texImage, i, j, k, 1);
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] =
- texel[ACOMP] = CHAN_TO_FLOAT(src[0]);
-}
-
#if DIM == 3
static void store_texel_intensity(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
#endif
-/* MESA_FORMAT_DEPTH_COMPONENT_F32 *******************************************/
+/* MESA_FORMAT_Z32 ***********************************************************/
-/* Fetch depth texel from 1D, 2D or 3D float32 DEPTH texture,
+/* Fetch depth texel from 1D, 2D or 3D 32-bit depth texture,
* returning 1 GLfloat.
* Note: no GLchan version of this function.
*/
-static void FETCH(f_depth_component_f32)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
+static void FETCH(f_z32)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
- const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
- texel[0] = src[0];
+ const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ texel[0] = src[0] * (1.0F / 0xffffffff);
}
#if DIM == 3
-static void store_texel_depth_component_f32(struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, const void *texel)
+static void store_texel_z32(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
{
- const GLfloat *depth = (const GLfloat *) texel;
- GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
+ const GLuint *depth = (const GLuint *) texel;
+ GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
dst[0] = *depth;
}
#endif
-/* MESA_FORMAT_DEPTH_COMPONENT16 *********************************************/
+/* MESA_FORMAT_Z16 ***********************************************************/
-/* Fetch depth texel from 1D, 2D or 3D float32 DEPTH texture,
+/* Fetch depth texel from 1D, 2D or 3D 16-bit depth texture,
* returning 1 GLfloat.
* Note: no GLchan version of this function.
*/
-static void FETCH(f_depth_component16)(const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
+static void FETCH(f_z16)(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
texel[0] = src[0] * (1.0F / 65535.0F);
}
#if DIM == 3
-static void store_texel_depth_component16(struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, const void *texel)
+static void store_texel_z16(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
{
const GLushort *depth = (const GLushort *) texel;
GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
/* MESA_FORMAT_RGBA_F32 ******************************************************/
-/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT32 texture, returning 4 GLchans.
- */
-static void FETCH(rgba_f32)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 4);
- UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], src[0]);
- UNCLAMPED_FLOAT_TO_CHAN(texel[GCOMP], src[1]);
- UNCLAMPED_FLOAT_TO_CHAN(texel[BCOMP], src[2]);
- UNCLAMPED_FLOAT_TO_CHAN(texel[ACOMP], src[3]);
-}
-
/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT32 texture, returning 4 GLfloats.
*/
static void FETCH(f_rgba_f32)( const struct gl_texture_image *texImage,
/* MESA_FORMAT_RGBA_F16 ******************************************************/
-/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT16 texture,
- * returning 4 GLchans.
- */
-static void FETCH(rgba_f16)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 4);
- UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], _mesa_half_to_float(src[0]));
- UNCLAMPED_FLOAT_TO_CHAN(texel[GCOMP], _mesa_half_to_float(src[1]));
- UNCLAMPED_FLOAT_TO_CHAN(texel[BCOMP], _mesa_half_to_float(src[2]));
- UNCLAMPED_FLOAT_TO_CHAN(texel[ACOMP], _mesa_half_to_float(src[3]));
-}
-
/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT16 texture,
* returning 4 GLfloats.
*/
/* MESA_FORMAT_RGB_F32 *******************************************************/
-/* Fetch texel from 1D, 2D or 3D RGB_FLOAT32 texture,
- * returning 4 GLchans.
- */
-static void FETCH(rgb_f32)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 3);
- UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], src[0]);
- UNCLAMPED_FLOAT_TO_CHAN(texel[GCOMP], src[1]);
- UNCLAMPED_FLOAT_TO_CHAN(texel[BCOMP], src[2]);
- texel[ACOMP] = CHAN_MAX;
-}
-
/* Fetch texel from 1D, 2D or 3D RGB_FLOAT32 texture,
* returning 4 GLfloats.
*/
#endif
-/* MESA_FORAMT_RGB_F16 *******************************************************/
-
-/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT16 texture,
- * returning 4 GLchans.
- */
-static void FETCH(rgb_f16)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 3);
- UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], _mesa_half_to_float(src[0]));
- UNCLAMPED_FLOAT_TO_CHAN(texel[GCOMP], _mesa_half_to_float(src[1]));
- UNCLAMPED_FLOAT_TO_CHAN(texel[BCOMP], _mesa_half_to_float(src[2]));
- texel[ACOMP] = CHAN_MAX;
-}
+/* MESA_FORMAT_RGB_F16 *******************************************************/
/* Fetch texel from 1D, 2D or 3D RGB_FLOAT16 texture,
* returning 4 GLfloats.
/* MESA_FORMAT_ALPHA_F32 *****************************************************/
-/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT32 texture,
- * returning 4 GLchans.
- */
-static void FETCH(alpha_f32)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] = 0;
- UNCLAMPED_FLOAT_TO_CHAN(texel[ACOMP], src[0]);
-}
-
/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT32 texture,
* returning 4 GLfloats.
*/
/* MESA_FORMAT_ALPHA_F32 *****************************************************/
-/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT16 texture,
- * returning 4 GLchans.
- */
-static void FETCH(alpha_f16)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] = 0;
- UNCLAMPED_FLOAT_TO_CHAN(texel[ACOMP], _mesa_half_to_float(src[0]));
-}
-
/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT16 texture,
* returning 4 GLfloats.
*/
/* MESA_FORMAT_LUMINANCE_F32 *************************************************/
-/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT32 texture,
- * returning 4 GLchans.
- */
-static void FETCH(luminance_f32)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
- UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], src[0]);
- texel[GCOMP] =
- texel[BCOMP] = texel[RCOMP];
- texel[ACOMP] = CHAN_MAX;
-}
-
/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT32 texture,
* returning 4 GLfloats.
*/
/* MESA_FORMAT_LUMINANCE_F16 *************************************************/
-/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT16 texture,
- * returning 4 GLchans.
- */
-static void FETCH(luminance_f16)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
- UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], _mesa_half_to_float(src[0]));
- texel[GCOMP] =
- texel[BCOMP] = texel[RCOMP];
- texel[ACOMP] = CHAN_MAX;
-}
-
/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT16 texture,
* returning 4 GLfloats.
*/
/* MESA_FORMAT_LUMINANCE_ALPHA_F32 *******************************************/
-/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT32 texture,
- * returning 4 GLchans.
- */
-static void FETCH(luminance_alpha_f32)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2);
- UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], src[0]);
- texel[GCOMP] =
- texel[BCOMP] = texel[RCOMP];
- UNCLAMPED_FLOAT_TO_CHAN(texel[ACOMP], src[1]);
-}
-
/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT32 texture,
* returning 4 GLfloats.
*/
/* MESA_FORMAT_LUMINANCE_ALPHA_F16 *******************************************/
-/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT16 texture,
- * returning 4 GLfloats.
- */
-static void FETCH(luminance_alpha_f16)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2);
- UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], _mesa_half_to_float(src[0]));
- texel[GCOMP] =
- texel[BCOMP] = texel[RCOMP];
- UNCLAMPED_FLOAT_TO_CHAN(texel[ACOMP], _mesa_half_to_float(src[1]));
-}
-
/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT16 texture,
* returning 4 GLfloats.
*/
/* MESA_FORMAT_INTENSITY_F32 *************************************************/
-/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT32 texture,
- * returning 4 GLchans.
- */
-static void FETCH(intensity_f32)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1);
- UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], src[0]);
- texel[GCOMP] =
- texel[BCOMP] =
- texel[ACOMP] = texel[RCOMP];
-}
-
/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT32 texture,
* returning 4 GLfloats.
*/
/* MESA_FORMAT_INTENSITY_F16 *************************************************/
-/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT16 texture,
- * returning 4 GLchans.
- */
-static void FETCH(intensity_f16)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
- UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], _mesa_half_to_float(src[0]));
- texel[GCOMP] =
- texel[BCOMP] =
- texel[ACOMP] = texel[RCOMP];
-}
-
/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT16 texture,
* returning 4 GLfloats.
*/
texel[ACOMP] = UBYTE_TO_CHAN( (s ) & 0xff );
}
-/* Fetch texel from 1D, 2D or 3D rgba8888 texture, return 4 GLfloats */
-static void FETCH(f_rgba8888)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
- texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 24) );
- texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
- texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff );
- texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff );
-}
-
#if DIM == 3
static void store_texel_rgba8888(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = UBYTE_TO_CHAN( (s >> 24) );
}
-/* Fetch texel from 1D, 2D or 3D abgr8888 texture, return 4 GLfloats */
-static void FETCH(f_rgba8888_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
- texel[RCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff );
- texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff );
- texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
- texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) );
-}
-
#if DIM == 3
static void store_texel_rgba8888_rev(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = UBYTE_TO_CHAN( (s >> 24) );
}
-/* Fetch texel from 1D, 2D or 3D argb8888 texture, return 4 GLfloats */
-static void FETCH(f_argb8888)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
- texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
- texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff );
- texel[BCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff );
- texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) );
-}
-
#if DIM == 3
static void store_texel_argb8888(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = UBYTE_TO_CHAN( (s ) & 0xff );
}
-/* Fetch texel from 1D, 2D or 3D argb8888_rev texture, return 4 GLfloats */
-static void FETCH(f_argb8888_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
- texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff );
- texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
- texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24) );
- texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff );
-}
-
#if DIM == 3
static void store_texel_argb8888_rev(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
{
const GLubyte *rgba = (const GLubyte *) texel;
GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
- *dst = PACK_COLOR_8888(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
+ *dst = PACK_COLOR_8888(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP], rgba[ACOMP]);
}
#endif
texel[ACOMP] = CHAN_MAX;
}
-/* Fetch texel from 1D, 2D or 3D rgb888 texture, return 4 GLfloats */
-static void FETCH(f_rgb888)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
- texel[RCOMP] = UBYTE_TO_FLOAT( src[2] );
- texel[GCOMP] = UBYTE_TO_FLOAT( src[1] );
- texel[BCOMP] = UBYTE_TO_FLOAT( src[0] );
- texel[ACOMP] = 1.0F;
-}
-
#if DIM == 3
static void store_texel_rgb888(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = CHAN_MAX;
}
-/* Fetch texel from 1D, 2D or 3D bgr888 texture, return 4 GLfloats */
-static void FETCH(f_bgr888)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
- texel[RCOMP] = UBYTE_TO_FLOAT( src[0] );
- texel[GCOMP] = UBYTE_TO_FLOAT( src[1] );
- texel[BCOMP] = UBYTE_TO_FLOAT( src[2] );
- texel[ACOMP] = 1.0F;
-}
-
#if DIM == 3
static void store_texel_bgr888(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = CHAN_MAX;
}
-/* Fetch texel from 1D, 2D or 3D rgb565 texture, return 4 GLfloats */
-static void FETCH(f_rgb565)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
- const GLushort s = *src;
- texel[RCOMP] = ((s >> 8) & 0xf8) * (1.0F / 248.0F);
- texel[GCOMP] = ((s >> 3) & 0xfc) * (1.0F / 252.0F);
- texel[BCOMP] = ((s << 3) & 0xf8) * (1.0F / 248.0F);
- texel[ACOMP] = 1.0F;
-}
-
#if DIM == 3
static void store_texel_rgb565(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = CHAN_MAX;
}
-/* Fetch texel from 1D, 2D or 3D rgb565_rev texture, return 4 GLfloats */
-static void FETCH(f_rgb565_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
+#if DIM == 3
+static void store_texel_rgb565_rev(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
+{
+ const GLubyte *rgba = (const GLubyte *) texel;
+ GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
+ *dst = PACK_COLOR_565(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP]);
+}
+#endif
+
+/* MESA_FORMAT_RGBA4444 ******************************************************/
+
+/* Fetch texel from 1D, 2D or 3D argb444 texture, return 4 GLchans */
+static void FETCH(rgba4444)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLchan *texel )
{
const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
- const GLushort s = (*src >> 8) | (*src << 8); /* byte swap */
- texel[RCOMP] = ((s >> 8) & 0xf8) * (1.0F / 248.0F);
- texel[GCOMP] = ((s >> 3) & 0xfc) * (1.0F / 252.0F);
- texel[BCOMP] = ((s << 3) & 0xf8) * (1.0F / 248.0F);
- texel[ACOMP] = 1.0F;
+ const GLushort s = *src;
+ texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 12) & 0xf) | ((s >> 8) & 0xf0) );
+ texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 8) & 0xf) | ((s >> 4) & 0xf0) );
+ texel[BCOMP] = UBYTE_TO_CHAN( ((s >> 4) & 0xf) | ((s ) & 0xf0) );
+ texel[ACOMP] = UBYTE_TO_CHAN( ((s ) & 0xf) | ((s << 4) & 0xf0) );
}
#if DIM == 3
-static void store_texel_rgb565_rev(struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, const void *texel)
+static void store_texel_rgba4444(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
{
const GLubyte *rgba = (const GLubyte *) texel;
GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
- *dst = PACK_COLOR_565(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP]);
+ *dst = PACK_COLOR_4444(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
}
#endif
texel[ACOMP] = UBYTE_TO_CHAN( ((s >> 12) & 0xf) | ((s >> 8) & 0xf0) );
}
-/* Fetch texel from 1D, 2D or 3D argb4444 texture, return 4 GLfloats */
-static void FETCH(f_argb4444)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
- const GLushort s = *src;
- texel[RCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F);
- texel[GCOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F);
- texel[BCOMP] = ((s ) & 0xf) * (1.0F / 15.0F);
- texel[ACOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F);
-}
-
#if DIM == 3
static void store_texel_argb4444(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
{
const GLubyte *rgba = (const GLubyte *) texel;
GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
- *dst = PACK_COLOR_4444(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
+ *dst = PACK_COLOR_4444(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
}
#endif
texel[ACOMP] = UBYTE_TO_CHAN( ((s >> 4) & 0xf) | ((s ) & 0xf0) );
}
-/* Fetch texel from 1D, 2D or 3D argb4444_rev texture, return 4 GLfloats */
-static void FETCH(f_argb4444_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
- texel[RCOMP] = ((s ) & 0xf) * (1.0F / 15.0F);
- texel[GCOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F);
- texel[BCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F);
- texel[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F);
-}
-
#if DIM == 3
static void store_texel_argb4444_rev(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
}
#endif
+/* MESA_FORMAT_RGBA5551 ******************************************************/
+
+/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */
+static void FETCH(rgba5551)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLchan *texel )
+{
+ const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
+ const GLushort s = *src;
+ texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 8) & 0xf8) | ((s >> 13) & 0x7) );
+ texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 3) & 0xf8) | ((s >> 8) & 0x7) );
+ texel[BCOMP] = UBYTE_TO_CHAN( ((s << 2) & 0xf8) | ((s >> 3) & 0x7) );
+ texel[ACOMP] = UBYTE_TO_CHAN( ((s) & 0x01) ? 255 : 0);
+}
+
+#if DIM == 3
+static void store_texel_rgba5551(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
+{
+ const GLubyte *rgba = (const GLubyte *) texel;
+ GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
+ *dst = PACK_COLOR_5551(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
+}
+#endif
/* MESA_FORMAT_ARGB1555 ******************************************************/
texel[ACOMP] = UBYTE_TO_CHAN( ((s >> 15) & 0x01) * 255 );
}
-/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLfloats */
-static void FETCH(f_argb1555)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
- const GLushort s = *src;
- texel[RCOMP] = ((s >> 10) & 0x1f) * (1.0F / 31.0F);
- texel[GCOMP] = ((s >> 5) & 0x1f) * (1.0F / 31.0F);
- texel[BCOMP] = ((s ) & 0x1f) * (1.0F / 31.0F);
- texel[ACOMP] = ((s >> 15) & 0x01);
-}
-
#if DIM == 3
static void store_texel_argb1555(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = UBYTE_TO_CHAN( ((s >> 15) & 0x01) * 255 );
}
-/* Fetch texel from 1D, 2D or 3D argb1555_rev texture, return 4 GLfloats */
-static void FETCH(f_argb1555_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
- const GLushort s = (*src << 8) | (*src >> 8); /* byteswap */
- texel[RCOMP] = ((s >> 10) & 0x1f) * (1.0F / 31.0F);
- texel[GCOMP] = ((s >> 5) & 0x1f) * (1.0F / 31.0F);
- texel[BCOMP] = ((s ) & 0x1f) * (1.0F / 31.0F);
- texel[ACOMP] = ((s >> 15) & 0x01);
-}
-
#if DIM == 3
static void store_texel_argb1555_rev(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = UBYTE_TO_CHAN( s >> 8 );
}
-/* Fetch texel from 1D, 2D or 3D al88 texture, return 4 GLfloats */
-static void FETCH(f_al88)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] = UBYTE_TO_FLOAT( s & 0xff );
- texel[ACOMP] = UBYTE_TO_FLOAT( s >> 8 );
-}
-
#if DIM == 3
static void store_texel_al88(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = UBYTE_TO_CHAN( s & 0xff );
}
-/* Fetch texel from 1D, 2D or 3D al88_rev texture, return 4 GLfloats */
-static void FETCH(f_al88_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] = UBYTE_TO_FLOAT( s >> 8 );
- texel[ACOMP] = UBYTE_TO_FLOAT( s & 0xff );
-}
-
#if DIM == 3
static void store_texel_al88_rev(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = CHAN_MAX;
}
-/* Fetch texel from 1D, 2D or 3D rgb332 texture, return 4 GLfloats */
-static void FETCH(f_rgb332)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
- const GLubyte s = *src;
- texel[RCOMP] = ((s ) & 0xe0) * (1.0F / 224.0F);
- texel[GCOMP] = ((s << 3) & 0xe0) * (1.0F / 224.0F);
- texel[BCOMP] = ((s << 6) & 0xc0) * (1.0F / 192.0F);
- texel[ACOMP] = 1.0F;
-}
-
#if DIM == 3
static void store_texel_rgb332(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = UBYTE_TO_CHAN( src[0] );
}
-/* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLfloats */
-static void FETCH(f_a8)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] = 0.0;
- texel[ACOMP] = UBYTE_TO_FLOAT( src[0] );
-}
-
#if DIM == 3
static void store_texel_a8(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = CHAN_MAX;
}
-/* Fetch texel from 1D, 2D or 3D l8 texture, return 4 GLfloats */
-static void FETCH(f_l8)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] = UBYTE_TO_FLOAT( src[0] );
- texel[ACOMP] = 1.0F;
-}
-
#if DIM == 3
static void store_texel_l8(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
texel[ACOMP] = UBYTE_TO_CHAN( src[0] );
}
-/* Fetch texel from 1D, 2D or 3D i8 texture, return 4 GLfloats */
-static void FETCH(f_i8)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] =
- texel[ACOMP] = UBYTE_TO_FLOAT( src[0] );
-}
-
#if DIM == 3
static void store_texel_i8(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
{
const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
const struct gl_color_table *palette;
- const GLchan *table;
+ GLubyte texelUB[4];
GLuint index;
GET_CURRENT_CONTEXT(ctx);
}
if (palette->Size == 0)
return; /* undefined results */
- ASSERT(palette->Type != GL_FLOAT);
- table = (const GLchan *) palette->Table;
/* Mask the index against size of palette to avoid going out of bounds */
index = (*src) & (palette->Size - 1);
- switch (palette->Format) {
+ {
+ const GLubyte *table = palette->TableUB;
+ switch (palette->_BaseFormat) {
case GL_ALPHA:
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] = 0;
- texel[ACOMP] = table[index];
- return;
+ texelUB[RCOMP] =
+ texelUB[GCOMP] =
+ texelUB[BCOMP] = 0;
+ texelUB[ACOMP] = table[index];
+ break;;
case GL_LUMINANCE:
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] = table[index];
- texel[ACOMP] = CHAN_MAX;
+ texelUB[RCOMP] =
+ texelUB[GCOMP] =
+ texelUB[BCOMP] = table[index];
+ texelUB[ACOMP] = 255;
break;
case GL_INTENSITY:
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] =
- texel[ACOMP] = table[index];
- return;
+ texelUB[RCOMP] =
+ texelUB[GCOMP] =
+ texelUB[BCOMP] =
+ texelUB[ACOMP] = table[index];
+ break;;
case GL_LUMINANCE_ALPHA:
- texel[RCOMP] =
- texel[GCOMP] =
- texel[BCOMP] = table[index * 2 + 0];
- texel[ACOMP] = table[index * 2 + 1];
- return;
+ texelUB[RCOMP] =
+ texelUB[GCOMP] =
+ texelUB[BCOMP] = table[index * 2 + 0];
+ texelUB[ACOMP] = table[index * 2 + 1];
+ break;;
case GL_RGB:
- texel[RCOMP] = table[index * 3 + 0];
- texel[GCOMP] = table[index * 3 + 1];
- texel[BCOMP] = table[index * 3 + 2];
- texel[ACOMP] = CHAN_MAX;
- return;
+ texelUB[RCOMP] = table[index * 3 + 0];
+ texelUB[GCOMP] = table[index * 3 + 1];
+ texelUB[BCOMP] = table[index * 3 + 2];
+ texelUB[ACOMP] = 255;
+ break;;
case GL_RGBA:
- texel[RCOMP] = table[index * 4 + 0];
- texel[GCOMP] = table[index * 4 + 1];
- texel[BCOMP] = table[index * 4 + 2];
- texel[ACOMP] = table[index * 4 + 3];
- return;
+ texelUB[RCOMP] = table[index * 4 + 0];
+ texelUB[GCOMP] = table[index * 4 + 1];
+ texelUB[BCOMP] = table[index * 4 + 2];
+ texelUB[ACOMP] = table[index * 4 + 3];
+ break;;
default:
- _mesa_problem(ctx, "Bad palette format in palette_sample");
+ _mesa_problem(ctx, "Bad palette format in fetch_texel_ci8");
+ return;
+ }
+#if CHAN_TYPE == GL_UNSIGNED_BYTE
+ COPY_4UBV(texel, texelUB);
+#elif CHAN_TYPE == GL_UNSIGNED_SHORT
+ texel[0] = UBYTE_TO_USHORT(texelUB[0]);
+ texel[1] = UBYTE_TO_USHORT(texelUB[1]);
+ texel[2] = UBYTE_TO_USHORT(texelUB[2]);
+ texel[3] = UBYTE_TO_USHORT(texelUB[3]);
+#else
+ texel[0] = UBYTE_TO_FLOAT(texelUB[0]);
+ texel[1] = UBYTE_TO_FLOAT(texelUB[1]);
+ texel[2] = UBYTE_TO_FLOAT(texelUB[2]);
+ texel[3] = UBYTE_TO_FLOAT(texelUB[3]);
+#endif
}
}
+#if DIM == 3
+static void store_texel_ci8(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
+{
+ const GLubyte *index = (const GLubyte *) texel;
+ GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
+ *dst = *index;
+}
+#endif
+
-/* Fetch CI texel from 1D, 2D or 3D ci8 texture, lookup the index in a
- * color table, and return 4 GLfloats.
- */
-static void FETCH(f_ci8)( const struct gl_texture_image *texImage,
+#if FEATURE_EXT_texture_sRGB
+
+/* Fetch texel from 1D, 2D or 3D srgb8 texture, return 4 GLfloats */
+static void FETCH(srgb8)(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
+ texel[RCOMP] = nonlinear_to_linear(src[0]);
+ texel[GCOMP] = nonlinear_to_linear(src[1]);
+ texel[BCOMP] = nonlinear_to_linear(src[2]);
+ texel[ACOMP] = CHAN_MAX;
+}
+
+#if DIM == 3
+static void store_texel_srgb8(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, 3);
+ dst[0] = rgba[RCOMP]; /* no conversion */
+ dst[1] = rgba[GCOMP];
+ dst[2] = rgba[BCOMP];
+}
+#endif
+
+/* Fetch texel from 1D, 2D or 3D srgba8 texture, return 4 GLfloats */
+static void FETCH(srgba8)(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLfloat *texel )
{
- GLchan rgba[4];
- /* Sample as GLchan */
- FETCH(ci8)(texImage, i, j, k, rgba);
- /* and return as floats */
- texel[RCOMP] = CHAN_TO_FLOAT(rgba[RCOMP]);
- texel[GCOMP] = CHAN_TO_FLOAT(rgba[GCOMP]);
- texel[BCOMP] = CHAN_TO_FLOAT(rgba[BCOMP]);
- texel[ACOMP] = CHAN_TO_FLOAT(rgba[ACOMP]);
+ const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4);
+ texel[RCOMP] = nonlinear_to_linear(src[0]);
+ texel[GCOMP] = nonlinear_to_linear(src[1]);
+ texel[BCOMP] = nonlinear_to_linear(src[2]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(src[3]); /* linear! */
}
#if DIM == 3
-static void store_texel_ci8(struct gl_texture_image *texImage,
+static void store_texel_srgba8(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[RCOMP];
+ dst[1] = rgba[GCOMP];
+ dst[2] = rgba[BCOMP];
+}
+#endif
+
+/* Fetch texel from 1D, 2D or 3D sl8 texture, return 4 GLfloats */
+static void FETCH(sl8)(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = nonlinear_to_linear(src[0]);
+ texel[ACOMP] = CHAN_MAX;
+}
+
+#if DIM == 3
+static void store_texel_sl8(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
{
- const GLubyte *index = (const GLubyte *) texel;
+ const GLubyte *rgba = (const GLubyte *) texel;
GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
- *dst = *index;
+ dst[0] = rgba[RCOMP];
}
#endif
+/* Fetch texel from 1D, 2D or 3D sla8 texture, return 4 GLfloats */
+static void FETCH(sla8)(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 2);
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = nonlinear_to_linear(src[0]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(src[1]); /* linear */
+}
+
+#if DIM == 3
+static void store_texel_sla8(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, 2);
+ dst[0] = rgba[RCOMP];
+ dst[1] = rgba[ACOMP];
+}
+#endif
+
+
+
+#endif /* FEATURE_EXT_texture_sRGB */
+
+
/* MESA_FORMAT_YCBCR *********************************************************/
texel[ACOMP] = CHAN_MAX;
}
-/* Fetch texel from 1D, 2D or 3D ycbcr texture, return 4 GLfloats */
-/* We convert YCbCr to RGB here */
-static void FETCH(f_ycbcr)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLushort *src0 = TEXEL_ADDR(GLushort, texImage, (i & ~1), j, k, 1); /* even */
- const GLushort *src1 = src0 + 1; /* odd */
- const GLubyte y0 = (*src0 >> 8) & 0xff; /* luminance */
- const GLubyte cb = *src0 & 0xff; /* chroma U */
- const GLubyte y1 = (*src1 >> 8) & 0xff; /* luminance */
- const GLubyte cr = *src1 & 0xff; /* chroma V */
- GLfloat r, g, b;
- if (i & 1) {
- /* odd pixel: use y1,cr,cb */
- r = (1.164 * (y1-16) + 1.596 * (cr-128));
- g = (1.164 * (y1-16) - 0.813 * (cr-128) - 0.391 * (cb-128));
- b = (1.164 * (y1-16) + 2.018 * (cb-128));
- }
- else {
- /* even pixel: use y0,cr,cb */
- r = (1.164 * (y0-16) + 1.596 * (cr-128));
- g = (1.164 * (y0-16) - 0.813 * (cr-128) - 0.391 * (cb-128));
- b = (1.164 * (y0-16) + 2.018 * (cb-128));
- }
- /* XXX remove / 255 here by tweaking arithmetic above */
- r /= 255.0;
- g /= 255.0;
- b /= 255.0;
- /* XXX should we really clamp??? */
- texel[RCOMP] = CLAMP(r, 0.0, 1.0);
- texel[GCOMP] = CLAMP(g, 0.0, 1.0);
- texel[BCOMP] = CLAMP(b, 0.0, 1.0);
- texel[ACOMP] = 1.0F;
-}
-
#if DIM == 3
static void store_texel_ycbcr(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
{
+ (void) texImage;
+ (void) i;
+ (void) j;
+ (void) k;
+ (void) texel;
/* XXX to do */
}
#endif
texel[ACOMP] = CHAN_MAX;
}
-/* Fetch texel from 1D, 2D or 3D ycbcr_rev texture, return 4 GLfloats */
-/* We convert YCbCr to RGB here */
-static void FETCH(f_ycbcr_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel )
-{
- const GLushort *src0 = TEXEL_ADDR(GLushort, texImage, (i & ~1), j, k, 1); /* even */
- const GLushort *src1 = src0 + 1; /* odd */
- const GLubyte y0 = *src0 & 0xff; /* luminance */
- const GLubyte cr = (*src0 >> 8) & 0xff; /* chroma V */
- const GLubyte y1 = *src1 & 0xff; /* luminance */
- const GLubyte cb = (*src1 >> 8) & 0xff; /* chroma U */
- GLfloat r, g, b;
- if (i & 1) {
- /* odd pixel: use y1,cr,cb */
- r = (1.164 * (y1-16) + 1.596 * (cr-128));
- g = (1.164 * (y1-16) - 0.813 * (cr-128) - 0.391 * (cb-128));
- b = (1.164 * (y1-16) + 2.018 * (cb-128));
- }
- else {
- /* even pixel: use y0,cr,cb */
- r = (1.164 * (y0-16) + 1.596 * (cr-128));
- g = (1.164 * (y0-16) - 0.813 * (cr-128) - 0.391 * (cb-128));
- b = (1.164 * (y0-16) + 2.018 * (cb-128));
- }
- /* XXX remove / 255 here by tweaking arithmetic above */
- r /= 255.0;
- g /= 255.0;
- b /= 255.0;
- /* XXX should we really clamp??? */
- texel[RCOMP] = CLAMP(r, 0.0, 1.0);
- texel[GCOMP] = CLAMP(g, 0.0, 1.0);
- texel[BCOMP] = CLAMP(b, 0.0, 1.0);
- texel[ACOMP] = 1.0F;
-}
-
#if DIM == 3
static void store_texel_ycbcr_rev(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
{
+ (void) texImage;
+ (void) i;
+ (void) j;
+ (void) k;
+ (void) texel;
/* XXX to do */
}
#endif
+/* MESA_TEXFORMAT_Z24_S8 ***************************************************/
+
+static void FETCH(f_z24_s8)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ /* only return Z, not stencil data */
+ const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ const GLfloat scale = 1.0F / (GLfloat) 0xffffff;
+ texel[0] = ((*src) >> 8) * scale;
+ ASSERT(texImage->TexFormat->MesaFormat == MESA_FORMAT_Z24_S8);
+ ASSERT(texel[0] >= 0.0F);
+ ASSERT(texel[0] <= 1.0F);
+}
+
+#if DIM == 3
+static void store_texel_z24_s8(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
+{
+ /* only store Z, not stencil */
+ GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ GLfloat depth = *((GLfloat *) texel);
+ GLuint zi = ((GLuint) (depth * 0xffffff)) << 8;
+ *dst = zi | (*dst & 0xff);
+}
+#endif
+
+
+/* MESA_TEXFORMAT_S8_Z24 ***************************************************/
+
+static void FETCH(f_s8_z24)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ /* only return Z, not stencil data */
+ const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ const GLfloat scale = 1.0F / (GLfloat) 0xffffff;
+ texel[0] = ((*src) & 0x00ffffff) * scale;
+ ASSERT(texImage->TexFormat->MesaFormat == MESA_FORMAT_S8_Z24);
+ ASSERT(texel[0] >= 0.0F);
+ ASSERT(texel[0] <= 1.0F);
+}
+
+#if DIM == 3
+static void store_texel_s8_z24(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
+{
+ /* only store Z, not stencil */
+ GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ GLfloat depth = *((GLfloat *) texel);
+ GLuint zi = (GLuint) (depth * 0xffffff);
+ *dst = zi | (*dst & 0xff000000);
+}
+#endif
+
#undef TEXEL_ADDR
#undef DIM
projects / mesa.git / blobdiff