From 0470a59df89ab453bdbe0fc2f820278cfffdc61c Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Tue, 20 Sep 2011 08:40:57 +0200
Subject: libX11 libxtrans mesa git update 20 sep 2011

---
 mesalib/src/mesa/main/teximage.c | 100 ++++++++++++++++++++++++++++++++++-----
 1 file changed, 89 insertions(+), 11 deletions(-)

(limited to 'mesalib/src/mesa/main/teximage.c')

diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index 6113b2e9e..fa00183ac 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -511,6 +511,25 @@ _mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat )
       }
    }
 
+   if (ctx->API == API_OPENGLES) {
+      switch (internalFormat) {
+      case GL_PALETTE4_RGB8_OES:
+      case GL_PALETTE4_R5_G6_B5_OES:
+      case GL_PALETTE8_RGB8_OES:
+      case GL_PALETTE8_R5_G6_B5_OES:
+	 return GL_RGB;
+      case GL_PALETTE4_RGBA8_OES:
+      case GL_PALETTE8_RGB5_A1_OES:
+      case GL_PALETTE4_RGBA4_OES:
+      case GL_PALETTE4_RGB5_A1_OES:
+      case GL_PALETTE8_RGBA8_OES:
+      case GL_PALETTE8_RGBA4_OES:
+	 return GL_RGBA;
+      default:
+         ; /* fallthrough */
+      }
+   }
+
    return -1; /* error */
 }
 
@@ -3012,15 +3031,12 @@ compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
    const GLenum proxyTarget = get_proxy_target(target);
    const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
    GLint expectedSize;
+   GLenum choose_format;
+   GLenum choose_type;
+   GLenum proxy_format;
 
    *reason = ""; /* no error */
 
-   /* check level */
-   if (level < 0 || level >= maxLevels) {
-      *reason = "level";
-      return GL_INVALID_VALUE;
-   }
-
    if (!target_can_be_compressed(ctx, target, internalFormat)) {
       *reason = "target";
       return GL_INVALID_ENUM;
@@ -3032,6 +3048,68 @@ compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
       return GL_INVALID_ENUM;
    }
 
+   switch (internalFormat) {
+#if FEATURE_ES
+   case GL_PALETTE4_RGB8_OES:
+   case GL_PALETTE4_RGBA8_OES:
+   case GL_PALETTE4_R5_G6_B5_OES:
+   case GL_PALETTE4_RGBA4_OES:
+   case GL_PALETTE4_RGB5_A1_OES:
+   case GL_PALETTE8_RGB8_OES:
+   case GL_PALETTE8_RGBA8_OES:
+   case GL_PALETTE8_R5_G6_B5_OES:
+   case GL_PALETTE8_RGBA4_OES:
+   case GL_PALETTE8_RGB5_A1_OES:
+      _mesa_cpal_compressed_format_type(internalFormat, &choose_format,
+					&choose_type);
+      proxy_format = choose_format;
+
+      /* check level */
+      if (level > 0 || level < -maxLevels) {
+	 *reason = "level";
+	 return GL_INVALID_VALUE;
+      }
+
+      if (dimensions != 2) {
+	 *reason = "compressed paletted textures must be 2D";
+	 return GL_INVALID_OPERATION;
+      }
+
+      /* Figure out the expected texture size (in bytes).  This will be
+       * checked against the actual size later.
+       */
+      expectedSize = _mesa_cpal_compressed_size(level, internalFormat,
+						width, height);
+
+      /* This is for the benefit of the TestProxyTexImage below.  It expects
+       * level to be non-negative.  OES_compressed_paletted_texture uses a
+       * weird mechanism where the level specified to glCompressedTexImage2D
+       * is -(n-1) number of levels in the texture, and the data specifies the
+       * complete mipmap stack.  This is done to ensure the palette is the
+       * same for all levels.
+       */
+      level = -level;
+      break;
+#endif
+
+   default:
+      choose_format = GL_NONE;
+      choose_type = GL_NONE;
+      proxy_format = internalFormat;
+
+      /* check level */
+      if (level < 0 || level >= maxLevels) {
+	 *reason = "level";
+	 return GL_INVALID_VALUE;
+      }
+
+      /* Figure out the expected texture size (in bytes).  This will be
+       * checked against the actual size later.
+       */
+      expectedSize = compressed_tex_size(width, height, depth, internalFormat);
+      break;
+   }
+
    /* This should really never fail */
    if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
       *reason = "internalFormat";
@@ -3054,8 +3132,8 @@ compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
    /* check image size against compression block size */
    {
       gl_format texFormat =
-         ctx->Driver.ChooseTextureFormat(ctx, internalFormat,
-                                         GL_NONE, GL_NONE);
+         ctx->Driver.ChooseTextureFormat(ctx, proxy_format,
+					 choose_format, choose_type);
       GLuint bw, bh;
 
       _mesa_get_format_block_size(texFormat, &bw, &bh);
@@ -3073,15 +3151,15 @@ compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
 
    /* check image sizes */
    if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
-                                      internalFormat, GL_NONE, GL_NONE,
-                                      width, height, depth, border)) {
+				      proxy_format, choose_format,
+				      choose_type,
+				      width, height, depth, border)) {
       /* See error comment above */
       *reason = "invalid width, height or format";
       return GL_INVALID_OPERATION;
    }
 
    /* check image size in bytes */
-   expectedSize = compressed_tex_size(width, height, depth, internalFormat);
    if (expectedSize != imageSize) {
       /* Per GL_ARB_texture_compression:  GL_INVALID_VALUE is generated [...]
        * if <imageSize> is not consistent with the format, dimensions, and
-- 
cgit v1.2.3