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authormarha <marha@users.sourceforge.net>2012-12-17 11:51:13 +0100
committermarha <marha@users.sourceforge.net>2012-12-17 11:51:13 +0100
commit840c8745518b92303d40f6834e9c616587242231 (patch)
tree097a30453fb59b6a88708c3f576e824e8f237c52 /mesalib/src/mesa/main/texcompress.c
parentb395c3c85251d4e8761704d8e3a3c9f9fa5b45cc (diff)
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libXft pixman mesa git update 17 dec 2012
libXft: 835cd2a6cb4aa8f89e6e7dead66483643a6e7ee8 pixman: 526dc06e5694172abf979c03a5cf530207fe2d27 mesa: 1358f3a905448f6fb546aba951e317f743a83c76
Diffstat (limited to 'mesalib/src/mesa/main/texcompress.c')
-rw-r--r--mesalib/src/mesa/main/texcompress.c139
1 files changed, 38 insertions, 101 deletions
diff --git a/mesalib/src/mesa/main/texcompress.c b/mesalib/src/mesa/main/texcompress.c
index 372a483fa..33c580a88 100644
--- a/mesalib/src/mesa/main/texcompress.c
+++ b/mesalib/src/mesa/main/texcompress.c
@@ -42,7 +42,6 @@
#include "texcompress_rgtc.h"
#include "texcompress_s3tc.h"
#include "texcompress_etc.h"
-#include "swrast/s_context.h"
/**
@@ -523,129 +522,67 @@ _mesa_compressed_image_address(GLint col, GLint row, GLint img,
/**
- * Decompress a compressed texture image, returning a GL_RGBA/GL_FLOAT image.
- * \param srcRowStride stride in bytes between rows of blocks in the
- * compressed source image.
+ * Return a texel-fetch function for the given format, or NULL if
+ * invalid format.
*/
-void
-_mesa_decompress_image(gl_format format, GLuint width, GLuint height,
- const GLubyte *src, GLint srcRowStride,
- GLfloat *dest)
+compressed_fetch_func
+_mesa_get_compressed_fetch_func(gl_format format)
{
- void (*fetch)(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel);
- struct swrast_texture_image texImage; /* dummy teximage */
- GLuint i, j;
- GLuint bytes, bw, bh;
-
- bytes = _mesa_get_format_bytes(format);
- _mesa_get_format_block_size(format, &bw, &bh);
-
- /* setup dummy texture image info */
- memset(&texImage, 0, sizeof(texImage));
- texImage.Map = (void *) src;
-
- /* XXX This line is a bit of a hack to adapt to the row stride
- * convention used by the texture decompression functions.
- */
- texImage.RowStride = srcRowStride * bh / bytes;
-
switch (format) {
- /* DXT formats */
case MESA_FORMAT_RGB_DXT1:
- fetch = _mesa_fetch_texel_rgb_dxt1;
- break;
case MESA_FORMAT_RGBA_DXT1:
- fetch = _mesa_fetch_texel_rgba_dxt1;
- break;
case MESA_FORMAT_RGBA_DXT3:
- fetch = _mesa_fetch_texel_rgba_dxt3;
- break;
case MESA_FORMAT_RGBA_DXT5:
- fetch = _mesa_fetch_texel_rgba_dxt5;
- break;
-
- /* FXT1 formats */
+ return _mesa_get_dxt_fetch_func(format);
case MESA_FORMAT_RGB_FXT1:
- fetch = _mesa_fetch_texel_2d_f_rgb_fxt1;
- break;
case MESA_FORMAT_RGBA_FXT1:
- fetch = _mesa_fetch_texel_2d_f_rgba_fxt1;
- break;
-
- /* Red/RG formats */
+ return _mesa_get_fxt_fetch_func(format);
case MESA_FORMAT_RED_RGTC1:
- fetch = _mesa_fetch_texel_red_rgtc1;
- break;
- case MESA_FORMAT_SIGNED_RED_RGTC1:
- fetch = _mesa_fetch_texel_signed_red_rgtc1;
- break;
- case MESA_FORMAT_RG_RGTC2:
- fetch = _mesa_fetch_texel_rg_rgtc2;
- break;
- case MESA_FORMAT_SIGNED_RG_RGTC2:
- fetch = _mesa_fetch_texel_signed_rg_rgtc2;
- break;
-
- /* L/LA formats */
case MESA_FORMAT_L_LATC1:
- fetch = _mesa_fetch_texel_l_latc1;
- break;
+ case MESA_FORMAT_SIGNED_RED_RGTC1:
case MESA_FORMAT_SIGNED_L_LATC1:
- fetch = _mesa_fetch_texel_signed_l_latc1;
- break;
+ case MESA_FORMAT_RG_RGTC2:
case MESA_FORMAT_LA_LATC2:
- fetch = _mesa_fetch_texel_la_latc2;
- break;
+ case MESA_FORMAT_SIGNED_RG_RGTC2:
case MESA_FORMAT_SIGNED_LA_LATC2:
- fetch = _mesa_fetch_texel_signed_la_latc2;
- break;
-
- /* ETC1 formats */
+ return _mesa_get_compressed_rgtc_func(format);
case MESA_FORMAT_ETC1_RGB8:
- fetch = _mesa_fetch_texel_2d_f_etc1_rgb8;
- break;
+ return _mesa_get_etc_fetch_func(format);
+ default:
+ return NULL;
+ }
+}
- /* ETC2 formats */
- case MESA_FORMAT_ETC2_RGB8:
- fetch = _mesa_fetch_texel_2d_f_etc2_rgb8;
- break;
- case MESA_FORMAT_ETC2_SRGB8:
- fetch = _mesa_fetch_texel_2d_f_etc2_srgb8;
- break;
- case MESA_FORMAT_ETC2_RGBA8_EAC:
- fetch = _mesa_fetch_texel_2d_f_etc2_rgba8_eac;
- break;
- case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC:
- fetch = _mesa_fetch_texel_2d_f_etc2_srgb8_alpha8_eac;
- break;
- case MESA_FORMAT_ETC2_R11_EAC:
- fetch = _mesa_fetch_texel_2d_f_etc2_r11_eac;
- break;
- case MESA_FORMAT_ETC2_RG11_EAC:
- fetch = _mesa_fetch_texel_2d_f_etc2_rg11_eac;
- break;
- case MESA_FORMAT_ETC2_SIGNED_R11_EAC:
- fetch = _mesa_fetch_texel_2d_f_etc2_signed_r11_eac;
- break;
- case MESA_FORMAT_ETC2_SIGNED_RG11_EAC:
- fetch = _mesa_fetch_texel_2d_f_etc2_signed_rg11_eac;
- break;
- case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1:
- fetch = _mesa_fetch_texel_2d_f_etc2_rgb8_punchthrough_alpha1;
- break;
- case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1:
- fetch = _mesa_fetch_texel_2d_f_etc2_srgb8_punchthrough_alpha1;
- break;
- default:
+/**
+ * Decompress a compressed texture image, returning a GL_RGBA/GL_FLOAT image.
+ * \param srcRowStride stride in bytes between rows of blocks in the
+ * compressed source image.
+ */
+void
+_mesa_decompress_image(gl_format format, GLuint width, GLuint height,
+ const GLubyte *src, GLint srcRowStride,
+ GLfloat *dest)
+{
+ compressed_fetch_func fetch;
+ GLuint i, j;
+ GLuint bytes, bw, bh;
+ GLint stride;
+
+ bytes = _mesa_get_format_bytes(format);
+ _mesa_get_format_block_size(format, &bw, &bh);
+
+ fetch = _mesa_get_compressed_fetch_func(format);
+ if (!fetch) {
_mesa_problem(NULL, "Unexpected format in _mesa_decompress_image()");
return;
}
+
+ stride = srcRowStride * bh / bytes;
for (j = 0; j < height; j++) {
for (i = 0; i < width; i++) {
- fetch(&texImage, i, j, 0, dest);
+ fetch(src, NULL, stride, i, j, 0, dest);
dest += 4;
}
}