mesa: Set correct values for range/precision of shader integer types

[mesa.git] / src / mesa / main / texfetch_tmp.h

diff --git a/src/mesa/main/texfetch_tmp.h b/src/mesa/main/texfetch_tmp.h
index 3a75cdcefe95169e881466e94b610ee77c409d12..36dede57f002eb8a005f4a78258791583a83c915 100644 (file)
--- a/src/mesa/main/texfetch_tmp.h
+++ b/src/mesa/main/texfetch_tmp.h
@@ -135,7 +135,7 @@ static void store_texel_rgba_f32(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);
+   GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 4);
    dst[0] = depth[RCOMP];
    dst[1] = depth[GCOMP];
    dst[2] = depth[BCOMP];
@@ -163,9 +163,12 @@ static void FETCH(f_rgba_f16)( const struct gl_texture_image *texImage,
 static void store_texel_rgba_f16(struct gl_texture_image *texImage,
                                  GLint i, GLint j, GLint k, const void *texel)
 {
-   const GLfloat *depth = (const GLfloat *) texel;
-   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
-   dst[0] = _mesa_float_to_half(*depth);
+   const GLfloat *src = (const GLfloat *) texel;
+   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 4);
+   dst[0] = _mesa_float_to_half(src[RCOMP]);
+   dst[1] = _mesa_float_to_half(src[GCOMP]);
+   dst[2] = _mesa_float_to_half(src[BCOMP]);
+   dst[3] = _mesa_float_to_half(src[ACOMP]);
 }
 #endif
 
@@ -188,9 +191,11 @@ static void FETCH(f_rgb_f32)( const struct gl_texture_image *texImage,
 static void store_texel_rgb_f32(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);
-   dst[0] = *depth;
+   const GLfloat *src = (const GLfloat *) texel;
+   GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 3);
+   dst[0] = src[RCOMP];
+   dst[1] = src[GCOMP];
+   dst[2] = src[BCOMP];
 }
 #endif
 
@@ -214,9 +219,11 @@ static void FETCH(f_rgb_f16)( const struct gl_texture_image *texImage,
 static void store_texel_rgb_f16(struct gl_texture_image *texImage,
                                 GLint i, GLint j, GLint k, const void *texel)
 {
-   const GLfloat *depth = (const GLfloat *) texel;
-   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1);
-   dst[0] = _mesa_float_to_half(*depth);
+   const GLfloat *src = (const GLfloat *) texel;
+   GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 3);
+   dst[0] = _mesa_float_to_half(src[RCOMP]);
+   dst[1] = _mesa_float_to_half(src[GCOMP]);
+   dst[2] = _mesa_float_to_half(src[BCOMP]);
 }
 #endif
 
@@ -830,7 +837,7 @@ static void store_texel_argb2101010(struct gl_texture_image *texImage,
 {
    const GLubyte *rgba = (const GLubyte *) texel;
    GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
-   *dst = PACK_COLOR_2101010(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
+   *dst = PACK_COLOR_2101010_UB(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
 }
 #endif
 
@@ -892,8 +899,8 @@ static void FETCH(f_al44)( const struct gl_texture_image *texImage,
    const GLubyte s = *TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
    texel[RCOMP] =
    texel[GCOMP] =
-   texel[BCOMP] = UBYTE_TO_FLOAT( (s & 0x0f) << 4 );
-   texel[ACOMP] = UBYTE_TO_FLOAT(  s & 0xf0 );
+   texel[BCOMP] = (s & 0xf) * (1.0F / 15.0F);
+   texel[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F);
 }
 
 #if DIM == 3
@@ -1196,6 +1203,30 @@ static void store_texel_l8(struct gl_texture_image *texImage,
 #endif
 
 
+/* MESA_FORMAT_L16 ***********************************************************/
+
+/* Fetch texel from 1D, 2D or 3D l16 texture, return 4 GLchans */
+static void FETCH(f_l16)( 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[RCOMP] =
+   texel[GCOMP] =
+   texel[BCOMP] = USHORT_TO_FLOAT( src[0] );
+   texel[ACOMP] = 1.0F;
+}
+
+#if DIM == 3
+static void store_texel_l16(struct gl_texture_image *texImage,
+                            GLint i, GLint j, GLint k, const void *texel)
+{
+   const GLushort *rgba = (const GLushort *) texel;
+   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
+   *dst = rgba[RCOMP];
+}
+#endif
+
+
 /* MESA_FORMAT_I8 ************************************************************/
 
 /* Fetch texel from 1D, 2D or 3D i8 texture, return 4 GLchans */
@@ -1220,6 +1251,30 @@ static void store_texel_i8(struct gl_texture_image *texImage,
 #endif
 
 
+/* MESA_FORMAT_I16 ***********************************************************/
+
+/* Fetch texel from 1D, 2D or 3D i16 texture, return 4 GLchans */
+static void FETCH(f_i16)( 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[RCOMP] =
+   texel[GCOMP] =
+   texel[BCOMP] =
+   texel[ACOMP] = USHORT_TO_FLOAT( src[0] );
+}
+
+#if DIM == 3
+static void store_texel_i16(struct gl_texture_image *texImage,
+                            GLint i, GLint j, GLint k, const void *texel)
+{
+   const GLushort *rgba = (const GLushort *) texel;
+   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
+   *dst = rgba[RCOMP];
+}
+#endif
+
+
 /* MESA_FORMAT_CI8 ***********************************************************/
 
 /* Fetch CI texel from 1D, 2D or 3D ci8 texture, lookup the index in a