fontconfig mesa xserver git update 18 Jul 2012

5 files changed, 78 insertions, 3 deletions

diff --git a/mesalib/src/mesa/main/drawpix.c b/mesalib/src/mesa/main/drawpix.c
index def55dddd..fdcbcccde 100644
--- a/mesalib/src/mesa/main/drawpix.c
+++ b/mesalib/src/mesa/main/drawpix.c
@@ -240,7 +240,7 @@ _mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
    }
 
    if (ctx->ReadBuffer->Name != 0 && ctx->ReadBuffer->Visual.samples > 0) {
-      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION,
+      _mesa_error(ctx, GL_INVALID_OPERATION,
 		  "glCopyPixels(multisample FBO)");
       goto end;
    }
diff --git a/mesalib/src/mesa/main/texcompress_etc.c b/mesalib/src/mesa/main/texcompress_etc.c
index 5b331a92a..c645f52b9 100644
--- a/mesalib/src/mesa/main/texcompress_etc.c
+++ b/mesalib/src/mesa/main/texcompress_etc.c
@@ -69,3 +69,35 @@ _mesa_fetch_texel_2d_f_etc1_rgb8(const struct swrast_texture_image *texImage,
    texel[BCOMP] = UBYTE_TO_FLOAT(dst[2]);
    texel[ACOMP] = 1.0f;
 }
+
+/**
+ * Decode texture data in format `MESA_FORMAT_ETC1_RGB8` to
+ * `MESA_FORMAT_ABGR8888`.
+ *
+ * The size of the source data must be a multiple of the ETC1 block size,
+ * which is 8, even if the texture image's dimensions are not aligned to 4.
+ * From the GL_OES_compressed_ETC1_RGB8_texture spec:
+ *   The texture is described as a number of 4x4 pixel blocks. If the
+ *   texture (or a particular mip-level) is smaller than 4 pixels in
+ *   any dimension (such as a 2x2 or a 8x1 texture), the texture is
+ *   found in the upper left part of the block(s), and the rest of the
+ *   pixels are not used. For instance, a texture of size 4x2 will be
+ *   placed in the upper half of a 4x4 block, and the lower half of the
+ *   pixels in the block will not be accessed.
+ *
+ * \param src_width in pixels
+ * \param src_height in pixels
+ * \param dst_stride in bytes
+ */
+void
+_mesa_etc1_unpack_rgba8888(uint8_t *dst_row,
+                           unsigned dst_stride,
+                           const uint8_t *src_row,
+                           unsigned src_stride,
+                           unsigned src_width,
+                           unsigned src_height)
+{
+   etc1_unpack_rgba8888(dst_row, dst_stride,
+                        src_row, src_stride,
+                        src_width, src_height);
+}
diff --git a/mesalib/src/mesa/main/texcompress_etc.h b/mesalib/src/mesa/main/texcompress_etc.h
index 8e8427f8f..411e1540d 100644
--- a/mesalib/src/mesa/main/texcompress_etc.h
+++ b/mesalib/src/mesa/main/texcompress_etc.h
@@ -24,6 +24,7 @@
 #ifndef TEXCOMPRESS_ETC1_H
 #define TEXCOMPRESS_ETC1_H
 
+#include <inttypes.h>
 #include "glheader.h"
 #include "mfeatures.h"
 #include "texstore.h"
@@ -37,4 +38,12 @@ void
 _mesa_fetch_texel_2d_f_etc1_rgb8(const struct swrast_texture_image *texImage,
                                  GLint i, GLint j, GLint k, GLfloat *texel);
 
+void
+_mesa_etc1_unpack_rgba8888(uint8_t *dst_row,
+                           unsigned dst_stride,
+                           const uint8_t *src_row,
+                           unsigned src_stride,
+                           unsigned src_width,
+                           unsigned src_height);
+
 #endif
diff --git a/mesalib/src/mesa/main/texcompress_etc_tmp.h b/mesalib/src/mesa/main/texcompress_etc_tmp.h
index 5c8c6decf..8bbb2cde8 100644
--- a/mesalib/src/mesa/main/texcompress_etc_tmp.h
+++ b/mesalib/src/mesa/main/texcompress_etc_tmp.h
@@ -134,3 +134,37 @@ TAG(etc1_fetch_texel)(const struct TAG(etc1_block) *block,
    dst[1] = TAG(etc1_clamp)(base_color[1], modifier);
    dst[2] = TAG(etc1_clamp)(base_color[2], modifier);
 }
+
+static void
+etc1_unpack_rgba8888(uint8_t *dst_row,
+                     unsigned dst_stride,
+                     const uint8_t *src_row,
+                     unsigned src_stride,
+                     unsigned width,
+                     unsigned height)
+{
+   const unsigned bw = 4, bh = 4, bs = 8, comps = 4;
+   struct etc1_block block;
+   unsigned x, y, i, j;
+
+   for (y = 0; y < height; y += bh) {
+      const uint8_t *src = src_row;
+
+      for (x = 0; x < width; x+= bw) {
+         etc1_parse_block(&block, src);
+
+         for (j = 0; j < bh; j++) {
+            uint8_t *dst = dst_row + (y + j) * dst_stride + x * comps;
+            for (i = 0; i < bw; i++) {
+               etc1_fetch_texel(&block, i, j, dst);
+               dst[3] = 255;
+               dst += comps;
+            }
+         }
+
+         src += bs;
+      }
+
+      src_row += src_stride;
+   }
+}
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index 126386ebe..64b25a82d 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -2005,7 +2005,7 @@ copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
       }
 
       if (ctx->ReadBuffer->Visual.samples > 0) {
-	 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION,
+	 _mesa_error(ctx, GL_INVALID_OPERATION,
 		     "glCopyTexImage%dD(multisample FBO)",
 		     dimensions);
 	 return GL_TRUE;
@@ -2130,7 +2130,7 @@ copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions,
       }
 
       if (ctx->ReadBuffer->Visual.samples > 0) {
-	 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION,
+	 _mesa_error(ctx, GL_INVALID_OPERATION,
 		     "glCopyTexSubImage%dD(multisample FBO)",
 		     dimensions);
 	 return GL_TRUE;