[Mesa-dev] [PATCH 01/22] mesa: Add a new texture format GL_COMPRESSED_RGB8_ETC2
Anuj Phogat
anuj.phogat at gmail.com
Fri Nov 9 23:29:48 PST 2012
v2: Add entry in texfetch_funcs[] array
Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
---
src/mesa/main/format_unpack.c | 7 +++++++
src/mesa/main/formats.c | 13 +++++++++++++
src/mesa/main/formats.h | 1 +
src/mesa/main/glformats.c | 3 +++
src/mesa/main/texcompress.c | 19 +++++++++++++++++++
src/mesa/main/texformat.c | 10 ++++++++++
src/mesa/main/teximage.c | 9 +++++++++
src/mesa/main/texstore.c | 1 +
src/mesa/swrast/s_texfetch.c | 6 ++++++
9 files changed, 69 insertions(+), 0 deletions(-)
diff --git a/src/mesa/main/format_unpack.c b/src/mesa/main/format_unpack.c
index 7b46dfc..d0029ab 100644
--- a/src/mesa/main/format_unpack.c
+++ b/src/mesa/main/format_unpack.c
@@ -1337,6 +1337,12 @@ unpack_ETC1_RGB8(const void *src, GLfloat dst[][4], GLuint n)
}
static void
+unpack_ETC2_RGB8(const void *src, GLfloat dst[][4], GLuint n)
+{
+ /* XXX to do */
+}
+
+static void
unpack_SIGNED_A8(const void *src, GLfloat dst[][4], GLuint n)
{
const GLbyte *s = ((const GLbyte *) src);
@@ -1585,6 +1591,7 @@ get_unpack_rgba_function(gl_format format)
table[MESA_FORMAT_SIGNED_LA_LATC2] = unpack_SIGNED_LA_LATC2;
table[MESA_FORMAT_ETC1_RGB8] = unpack_ETC1_RGB8;
+ table[MESA_FORMAT_ETC2_RGB8] = unpack_ETC2_RGB8;
table[MESA_FORMAT_SIGNED_A8] = unpack_SIGNED_A8;
table[MESA_FORMAT_SIGNED_L8] = unpack_SIGNED_L8;
diff --git a/src/mesa/main/formats.c b/src/mesa/main/formats.c
index df23af1..a83abc3 100644
--- a/src/mesa/main/formats.c
+++ b/src/mesa/main/formats.c
@@ -1398,6 +1398,16 @@ static struct gl_format_info format_info[MESA_FORMAT_COUNT] =
4, 4, 8 /* 8 bytes per 4x4 block */
},
+ {
+ MESA_FORMAT_ETC2_RGB8,
+ "MESA_FORMAT_ETC2_RGB8",
+ GL_RGB,
+ GL_UNSIGNED_NORMALIZED,
+ 8, 8, 8, 0,
+ 0, 0, 0, 0, 0,
+ 4, 4, 8 /* 8 bytes per 4x4 block */
+ },
+
/* Signed formats from EXT_texture_snorm that are not in GL3.1 */
{
MESA_FORMAT_SIGNED_A8,
@@ -1840,6 +1850,7 @@ _mesa_get_uncompressed_format(gl_format format)
case MESA_FORMAT_SIGNED_LA_LATC2:
return MESA_FORMAT_SIGNED_AL88;
case MESA_FORMAT_ETC1_RGB8:
+ case MESA_FORMAT_ETC2_RGB8:
return MESA_FORMAT_RGB888;
default:
#ifdef DEBUG
@@ -2282,6 +2293,7 @@ _mesa_format_to_type_and_comps(gl_format format,
case MESA_FORMAT_LA_LATC2:
case MESA_FORMAT_SIGNED_LA_LATC2:
case MESA_FORMAT_ETC1_RGB8:
+ case MESA_FORMAT_ETC2_RGB8:
/* XXX generate error instead? */
*datatype = GL_UNSIGNED_BYTE;
*comps = 0;
@@ -2912,6 +2924,7 @@ _mesa_format_matches_format_and_type(gl_format gl_format,
return GL_FALSE;
case MESA_FORMAT_ETC1_RGB8:
+ case MESA_FORMAT_ETC2_RGB8:
return GL_FALSE;
case MESA_FORMAT_SIGNED_A8:
diff --git a/src/mesa/main/formats.h b/src/mesa/main/formats.h
index 1843eb6..1d3cc35 100644
--- a/src/mesa/main/formats.h
+++ b/src/mesa/main/formats.h
@@ -259,6 +259,7 @@ typedef enum
/*@}*/
MESA_FORMAT_ETC1_RGB8,
+ MESA_FORMAT_ETC2_RGB8,
MESA_FORMAT_SIGNED_A8, /* AAAA AAAA */
MESA_FORMAT_SIGNED_L8, /* LLLL LLLL */
diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c
index ba79f19..cc7ad22 100644
--- a/src/mesa/main/glformats.c
+++ b/src/mesa/main/glformats.c
@@ -570,6 +570,7 @@ _mesa_is_color_format(GLenum format)
case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
case GL_ETC1_RGB8_OES:
+ case GL_COMPRESSED_RGB8_ETC2:
/* generic integer formats */
case GL_RED_INTEGER_EXT:
case GL_GREEN_INTEGER_EXT:
@@ -829,6 +830,8 @@ _mesa_is_compressed_format(struct gl_context *ctx, GLenum format)
case GL_ETC1_RGB8_OES:
return _mesa_is_gles(ctx)
&& ctx->Extensions.OES_compressed_ETC1_RGB8_texture;
+ case GL_COMPRESSED_RGB8_ETC2:
+ return _mesa_is_gles3(ctx);
case GL_PALETTE4_RGB8_OES:
case GL_PALETTE4_RGBA8_OES:
case GL_PALETTE4_R5_G6_B5_OES:
diff --git a/src/mesa/main/texcompress.c b/src/mesa/main/texcompress.c
index 957cc6d..14a1634 100644
--- a/src/mesa/main/texcompress.c
+++ b/src/mesa/main/texcompress.c
@@ -33,6 +33,7 @@
#include "glheader.h"
#include "imports.h"
#include "colormac.h"
+#include "context.h"
#include "formats.h"
#include "mfeatures.h"
#include "mtypes.h"
@@ -92,6 +93,7 @@ _mesa_gl_compressed_format_base_format(GLenum format)
case GL_COMPRESSED_RGB_FXT1_3DFX:
case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
case GL_ETC1_RGB8_OES:
+ case GL_COMPRESSED_RGB8_ETC2:
return GL_RGB;
case GL_COMPRESSED_RGBA:
@@ -293,6 +295,14 @@ _mesa_get_compressed_formats(struct gl_context *ctx, GLint *formats)
}
}
+ if (_mesa_is_gles3(ctx)) {
+ if (formats) {
+ formats[n++] = GL_COMPRESSED_RGB8_ETC2;
+ }
+ else {
+ n += 1;
+ }
+ }
return n;
}
@@ -352,6 +362,8 @@ _mesa_glenum_to_compressed_format(GLenum format)
case GL_ETC1_RGB8_OES:
return MESA_FORMAT_ETC1_RGB8;
+ case GL_COMPRESSED_RGB8_ETC2:
+ return MESA_FORMAT_ETC2_RGB8;
default:
return MESA_FORMAT_NONE;
@@ -413,6 +425,8 @@ _mesa_compressed_format_to_glenum(struct gl_context *ctx, gl_format mesaFormat)
case MESA_FORMAT_ETC1_RGB8:
return GL_ETC1_RGB8_OES;
+ case MESA_FORMAT_ETC2_RGB8:
+ return GL_COMPRESSED_RGB8_ETC2;
default:
_mesa_problem(ctx, "Unexpected mesa texture format in"
@@ -538,6 +552,11 @@ _mesa_decompress_image(gl_format format, GLuint width, GLuint height,
fetch = _mesa_fetch_texel_2d_f_etc1_rgb8;
break;
+ /* ETC2 formats */
+ case MESA_FORMAT_ETC2_RGB8:
+ fetch = _mesa_fetch_texel_2d_f_etc2_rgb8;
+ break;
+
default:
_mesa_problem(NULL, "Unexpected format in _mesa_decompress_image()");
return;
diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c
index f0bc7fd..2607145 100644
--- a/src/mesa/main/texformat.c
+++ b/src/mesa/main/texformat.c
@@ -972,6 +972,16 @@ _mesa_choose_tex_format(struct gl_context *ctx, GLenum target,
}
}
+ if (_mesa_is_gles3(ctx)) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB8_ETC2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ETC2_RGB8);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
_mesa_problem(ctx, "unexpected format %s in _mesa_choose_tex_format()",
_mesa_lookup_enum_by_nr(internalFormat));
return MESA_FORMAT_NONE;
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index b889317..844d860 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -529,6 +529,15 @@ _mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat )
}
}
+ if (_mesa_is_gles3(ctx)) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB8_ETC2:
+ return GL_RGB;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
if (ctx->API == API_OPENGLES) {
switch (internalFormat) {
case GL_PALETTE4_RGB8_OES:
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c
index e691455..202d6c0 100644
--- a/src/mesa/main/texstore.c
+++ b/src/mesa/main/texstore.c
@@ -4124,6 +4124,7 @@ _mesa_get_texstore_func(gl_format format)
table[MESA_FORMAT_LA_LATC2] = _mesa_texstore_rg_rgtc2;
table[MESA_FORMAT_SIGNED_LA_LATC2] = _mesa_texstore_signed_rg_rgtc2;
table[MESA_FORMAT_ETC1_RGB8] = _mesa_texstore_etc1_rgb8;
+ table[MESA_FORMAT_ETC2_RGB8] = _mesa_texstore_etc2_rgb8;
table[MESA_FORMAT_SIGNED_A8] = _mesa_texstore_snorm8;
table[MESA_FORMAT_SIGNED_L8] = _mesa_texstore_snorm8;
table[MESA_FORMAT_SIGNED_AL88] = _mesa_texstore_snorm88;
diff --git a/src/mesa/swrast/s_texfetch.c b/src/mesa/swrast/s_texfetch.c
index 741dd87..f78947e 100644
--- a/src/mesa/swrast/s_texfetch.c
+++ b/src/mesa/swrast/s_texfetch.c
@@ -1029,6 +1029,12 @@ texfetch_funcs[MESA_FORMAT_COUNT] =
NULL
},
{
+ MESA_FORMAT_ETC2_RGB8,
+ NULL,
+ _mesa_fetch_texel_2d_f_etc2_rgb8,
+ NULL
+ },
+ {
MESA_FORMAT_SIGNED_A8,
fetch_texel_1d_signed_a8,
fetch_texel_2d_signed_a8,
--
1.7.7.6
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