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-rw-r--r--src/mesa/main/mipmap.c168
-rw-r--r--src/mesa/main/texformat.c171
-rw-r--r--src/mesa/main/texformat.h6
3 files changed, 178 insertions, 167 deletions
diff --git a/src/mesa/main/mipmap.c b/src/mesa/main/mipmap.c
index 09709d1787..b3e40c2da9 100644
--- a/src/mesa/main/mipmap.c
+++ b/src/mesa/main/mipmap.c
@@ -45,172 +45,6 @@ bytes_per_pixel(GLenum datatype, GLuint comps)
}
-static void
-mesa_format_to_type_and_comps(const struct gl_texture_format *format,
- GLenum *datatype, GLuint *comps)
-{
- switch (format->MesaFormat) {
- case MESA_FORMAT_RGBA8888:
- case MESA_FORMAT_RGBA8888_REV:
- case MESA_FORMAT_ARGB8888:
- case MESA_FORMAT_ARGB8888_REV:
- *datatype = CHAN_TYPE;
- *comps = 4;
- return;
- case MESA_FORMAT_RGB888:
- case MESA_FORMAT_BGR888:
- *datatype = GL_UNSIGNED_BYTE;
- *comps = 3;
- return;
- case MESA_FORMAT_RGB565:
- case MESA_FORMAT_RGB565_REV:
- *datatype = GL_UNSIGNED_SHORT_5_6_5;
- *comps = 3;
- return;
-
- case MESA_FORMAT_ARGB4444:
- case MESA_FORMAT_ARGB4444_REV:
- *datatype = GL_UNSIGNED_SHORT_4_4_4_4;
- *comps = 4;
- return;
-
- case MESA_FORMAT_ARGB1555:
- case MESA_FORMAT_ARGB1555_REV:
- *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV;
- *comps = 3;
- return;
-
- case MESA_FORMAT_AL88:
- case MESA_FORMAT_AL88_REV:
- *datatype = GL_UNSIGNED_BYTE;
- *comps = 2;
- return;
- case MESA_FORMAT_RGB332:
- *datatype = GL_UNSIGNED_BYTE_3_3_2;
- *comps = 3;
- return;
-
- case MESA_FORMAT_A8:
- case MESA_FORMAT_L8:
- case MESA_FORMAT_I8:
- case MESA_FORMAT_CI8:
- *datatype = GL_UNSIGNED_BYTE;
- *comps = 1;
- return;
-
- case MESA_FORMAT_YCBCR:
- case MESA_FORMAT_YCBCR_REV:
- *datatype = GL_UNSIGNED_SHORT;
- *comps = 2;
- return;
-
- case MESA_FORMAT_Z24_S8:
- *datatype = GL_UNSIGNED_INT;
- *comps = 1; /* XXX OK? */
- return;
-
- case MESA_FORMAT_Z16:
- *datatype = GL_UNSIGNED_SHORT;
- *comps = 1;
- return;
-
- case MESA_FORMAT_Z32:
- *datatype = GL_UNSIGNED_INT;
- *comps = 1;
- return;
-
- case MESA_FORMAT_SRGB8:
- *datatype = GL_UNSIGNED_BYTE;
- *comps = 3;
- return;
- case MESA_FORMAT_SRGBA8:
- *datatype = GL_UNSIGNED_BYTE;
- *comps = 4;
- return;
- case MESA_FORMAT_SL8:
- *datatype = GL_UNSIGNED_BYTE;
- *comps = 1;
- return;
- case MESA_FORMAT_SLA8:
- *datatype = GL_UNSIGNED_BYTE;
- *comps = 2;
- return;
-
- case MESA_FORMAT_RGB_FXT1:
- case MESA_FORMAT_RGBA_FXT1:
- case MESA_FORMAT_RGB_DXT1:
- case MESA_FORMAT_RGBA_DXT1:
- case MESA_FORMAT_RGBA_DXT3:
- case MESA_FORMAT_RGBA_DXT5:
- /* XXX generate error instead? */
- *datatype = GL_UNSIGNED_BYTE;
- *comps = 0;
- return;
-
- case MESA_FORMAT_RGBA:
- *datatype = CHAN_TYPE;
- *comps = 4;
- return;
- case MESA_FORMAT_RGB:
- *datatype = CHAN_TYPE;
- *comps = 3;
- return;
- case MESA_FORMAT_LUMINANCE_ALPHA:
- *datatype = CHAN_TYPE;
- *comps = 2;
- return;
- case MESA_FORMAT_ALPHA:
- case MESA_FORMAT_LUMINANCE:
- case MESA_FORMAT_INTENSITY:
- *datatype = CHAN_TYPE;
- *comps = 1;
- return;
-
- case MESA_FORMAT_RGBA_FLOAT32:
- *datatype = GL_FLOAT;
- *comps = 4;
- return;
- case MESA_FORMAT_RGBA_FLOAT16:
- *datatype = GL_HALF_FLOAT_ARB;
- *comps = 4;
- return;
- case MESA_FORMAT_RGB_FLOAT32:
- *datatype = GL_FLOAT;
- *comps = 3;
- return;
- case MESA_FORMAT_RGB_FLOAT16:
- *datatype = GL_HALF_FLOAT_ARB;
- *comps = 3;
- return;
- case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
- *datatype = GL_FLOAT;
- *comps = 2;
- return;
- case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
- *datatype = GL_HALF_FLOAT_ARB;
- *comps = 2;
- return;
- case MESA_FORMAT_ALPHA_FLOAT32:
- case MESA_FORMAT_LUMINANCE_FLOAT32:
- case MESA_FORMAT_INTENSITY_FLOAT32:
- *datatype = GL_FLOAT;
- *comps = 1;
- return;
- case MESA_FORMAT_ALPHA_FLOAT16:
- case MESA_FORMAT_LUMINANCE_FLOAT16:
- case MESA_FORMAT_INTENSITY_FLOAT16:
- *datatype = GL_HALF_FLOAT_ARB;
- *comps = 1;
- return;
-
- default:
- _mesa_problem(NULL, "bad texture format in mesa_format_to_type_and_comps");
- *datatype = 0;
- *comps = 1;
- }
-}
-
-
/**
* Average together two rows of a source image to produce a single new
* row in the dest image. It's legal for the two source rows to point
@@ -1087,7 +921,7 @@ _mesa_generate_mipmap(GLcontext *ctx, GLenum target,
convertFormat = srcImage->TexFormat;
}
- mesa_format_to_type_and_comps(convertFormat, &datatype, &comps);
+ _mesa_format_to_type_and_comps(convertFormat, &datatype, &comps);
for (level = texObj->BaseLevel; level < texObj->MaxLevel
&& level < maxLevels - 1; level++) {
diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c
index 62acdba1bb..ae9ed0a84b 100644
--- a/src/mesa/main/texformat.c
+++ b/src/mesa/main/texformat.c
@@ -1603,3 +1603,174 @@ _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat,
_mesa_problem(ctx, "unexpected format in _mesa_choose_tex_format()");
return NULL;
}
+
+
+
+/**
+ * Return datatype and number of components per texel for the
+ * given gl_texture_format.
+ */
+void
+_mesa_format_to_type_and_comps(const struct gl_texture_format *format,
+ GLenum *datatype, GLuint *comps)
+{
+ switch (format->MesaFormat) {
+ case MESA_FORMAT_RGBA8888:
+ case MESA_FORMAT_RGBA8888_REV:
+ case MESA_FORMAT_ARGB8888:
+ case MESA_FORMAT_ARGB8888_REV:
+ *datatype = CHAN_TYPE;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGB888:
+ case MESA_FORMAT_BGR888:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 3;
+ return;
+ case MESA_FORMAT_RGB565:
+ case MESA_FORMAT_RGB565_REV:
+ *datatype = GL_UNSIGNED_SHORT_5_6_5;
+ *comps = 3;
+ return;
+
+ case MESA_FORMAT_ARGB4444:
+ case MESA_FORMAT_ARGB4444_REV:
+ *datatype = GL_UNSIGNED_SHORT_4_4_4_4;
+ *comps = 4;
+ return;
+
+ case MESA_FORMAT_ARGB1555:
+ case MESA_FORMAT_ARGB1555_REV:
+ *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV;
+ *comps = 3;
+ return;
+
+ case MESA_FORMAT_AL88:
+ case MESA_FORMAT_AL88_REV:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 2;
+ return;
+ case MESA_FORMAT_RGB332:
+ *datatype = GL_UNSIGNED_BYTE_3_3_2;
+ *comps = 3;
+ return;
+
+ case MESA_FORMAT_A8:
+ case MESA_FORMAT_L8:
+ case MESA_FORMAT_I8:
+ case MESA_FORMAT_CI8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 1;
+ return;
+
+ case MESA_FORMAT_YCBCR:
+ case MESA_FORMAT_YCBCR_REV:
+ *datatype = GL_UNSIGNED_SHORT;
+ *comps = 2;
+ return;
+
+ case MESA_FORMAT_Z24_S8:
+ *datatype = GL_UNSIGNED_INT;
+ *comps = 1; /* XXX OK? */
+ return;
+
+ case MESA_FORMAT_Z16:
+ *datatype = GL_UNSIGNED_SHORT;
+ *comps = 1;
+ return;
+
+ case MESA_FORMAT_Z32:
+ *datatype = GL_UNSIGNED_INT;
+ *comps = 1;
+ return;
+
+ case MESA_FORMAT_SRGB8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 3;
+ return;
+ case MESA_FORMAT_SRGBA8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_SL8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 1;
+ return;
+ case MESA_FORMAT_SLA8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 2;
+ return;
+
+ case MESA_FORMAT_RGB_FXT1:
+ case MESA_FORMAT_RGBA_FXT1:
+ case MESA_FORMAT_RGB_DXT1:
+ case MESA_FORMAT_RGBA_DXT1:
+ case MESA_FORMAT_RGBA_DXT3:
+ case MESA_FORMAT_RGBA_DXT5:
+ /* XXX generate error instead? */
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 0;
+ return;
+
+ case MESA_FORMAT_RGBA:
+ *datatype = CHAN_TYPE;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGB:
+ *datatype = CHAN_TYPE;
+ *comps = 3;
+ return;
+ case MESA_FORMAT_LUMINANCE_ALPHA:
+ *datatype = CHAN_TYPE;
+ *comps = 2;
+ return;
+ case MESA_FORMAT_ALPHA:
+ case MESA_FORMAT_LUMINANCE:
+ case MESA_FORMAT_INTENSITY:
+ *datatype = CHAN_TYPE;
+ *comps = 1;
+ return;
+
+ case MESA_FORMAT_RGBA_FLOAT32:
+ *datatype = GL_FLOAT;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGBA_FLOAT16:
+ *datatype = GL_HALF_FLOAT_ARB;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGB_FLOAT32:
+ *datatype = GL_FLOAT;
+ *comps = 3;
+ return;
+ case MESA_FORMAT_RGB_FLOAT16:
+ *datatype = GL_HALF_FLOAT_ARB;
+ *comps = 3;
+ return;
+ case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
+ *datatype = GL_FLOAT;
+ *comps = 2;
+ return;
+ case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
+ *datatype = GL_HALF_FLOAT_ARB;
+ *comps = 2;
+ return;
+ case MESA_FORMAT_ALPHA_FLOAT32:
+ case MESA_FORMAT_LUMINANCE_FLOAT32:
+ case MESA_FORMAT_INTENSITY_FLOAT32:
+ *datatype = GL_FLOAT;
+ *comps = 1;
+ return;
+ case MESA_FORMAT_ALPHA_FLOAT16:
+ case MESA_FORMAT_LUMINANCE_FLOAT16:
+ case MESA_FORMAT_INTENSITY_FLOAT16:
+ *datatype = GL_HALF_FLOAT_ARB;
+ *comps = 1;
+ return;
+
+ default:
+ _mesa_problem(NULL, "bad format in _mesa_format_to_type_and_comps");
+ *datatype = 0;
+ *comps = 1;
+ }
+}
diff --git a/src/mesa/main/texformat.h b/src/mesa/main/texformat.h
index f5f851ca21..18900fe08b 100644
--- a/src/mesa/main/texformat.h
+++ b/src/mesa/main/texformat.h
@@ -243,4 +243,10 @@ extern const struct gl_texture_format *
_mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat,
GLenum format, GLenum type );
+
+extern void
+_mesa_format_to_type_and_comps(const struct gl_texture_format *format,
+ GLenum *datatype, GLuint *comps);
+
+
#endif
generated by cgit v1.2.3 (git 2.51.0) at 2025-10-31 16:48:57 +0000