goto invalid_enum_error;
ctx->Pack.Invert = param;
break;
+ case GL_PACK_COMPRESSED_BLOCK_WIDTH:
+ if (!_mesa_is_desktop_gl(ctx))
+ goto invalid_enum_error;
+ if (param<0)
+ goto invalid_value_error;
+ ctx->Pack.CompressedBlockWidth = param;
+ break;
+ case GL_PACK_COMPRESSED_BLOCK_HEIGHT:
+ if (!_mesa_is_desktop_gl(ctx))
+ goto invalid_enum_error;
+ if (param<0)
+ goto invalid_value_error;
+ ctx->Pack.CompressedBlockHeight = param;
+ break;
+ case GL_PACK_COMPRESSED_BLOCK_DEPTH:
+ if (!_mesa_is_desktop_gl(ctx))
+ goto invalid_enum_error;
+ if (param<0)
+ goto invalid_value_error;
+ ctx->Pack.CompressedBlockDepth = param;
+ break;
+ case GL_PACK_COMPRESSED_BLOCK_SIZE:
+ if (!_mesa_is_desktop_gl(ctx))
+ goto invalid_enum_error;
+ if (param<0)
+ goto invalid_value_error;
+ ctx->Pack.CompressedBlockSize = param;
+ break;
case GL_UNPACK_SWAP_BYTES:
if (!_mesa_is_desktop_gl(ctx))
goto invalid_value_error;
ctx->Unpack.Alignment = param;
break;
+ case GL_UNPACK_COMPRESSED_BLOCK_WIDTH:
+ if (!_mesa_is_desktop_gl(ctx))
+ goto invalid_enum_error;
+ if (param<0)
+ goto invalid_value_error;
+ ctx->Unpack.CompressedBlockWidth = param;
+ break;
+ case GL_UNPACK_COMPRESSED_BLOCK_HEIGHT:
+ if (!_mesa_is_desktop_gl(ctx))
+ goto invalid_enum_error;
+ if (param<0)
+ goto invalid_value_error;
+ ctx->Unpack.CompressedBlockHeight = param;
+ break;
+ case GL_UNPACK_COMPRESSED_BLOCK_DEPTH:
+ if (!_mesa_is_desktop_gl(ctx))
+ goto invalid_enum_error;
+ if (param<0)
+ goto invalid_value_error;
+ ctx->Unpack.CompressedBlockDepth = param;
+ break;
+ case GL_UNPACK_COMPRESSED_BLOCK_SIZE:
+ if (!_mesa_is_desktop_gl(ctx))
+ goto invalid_enum_error;
+ if (param<0)
+ goto invalid_value_error;
+ ctx->Unpack.CompressedBlockSize = param;
+ break;
default:
goto invalid_enum_error;
}
ctx->Pack.SwapBytes = GL_FALSE;
ctx->Pack.LsbFirst = GL_FALSE;
ctx->Pack.Invert = GL_FALSE;
+ ctx->Pack.CompressedBlockWidth = 0;
+ ctx->Pack.CompressedBlockHeight = 0;
+ ctx->Pack.CompressedBlockDepth = 0;
+ ctx->Pack.CompressedBlockSize = 0;
_mesa_reference_buffer_object(ctx, &ctx->Pack.BufferObj,
ctx->Shared->NullBufferObj);
ctx->Unpack.Alignment = 4;
ctx->Unpack.SwapBytes = GL_FALSE;
ctx->Unpack.LsbFirst = GL_FALSE;
ctx->Unpack.Invert = GL_FALSE;
+ ctx->Unpack.CompressedBlockWidth = 0;
+ ctx->Unpack.CompressedBlockHeight = 0;
+ ctx->Unpack.CompressedBlockDepth = 0;
+ ctx->Unpack.CompressedBlockSize = 0;
_mesa_reference_buffer_object(ctx, &ctx->Unpack.BufferObj,
ctx->Shared->NullBufferObj);
_mesa_reference_buffer_object(ctx, &ctx->DefaultPacking.BufferObj,
ctx->Shared->NullBufferObj);
}
+
+
+/**
+ * Check if the given compressed pixel storage parameters are legal.
+ * Record a GL error if illegal.
+ * \return true if legal, false if illegal
+ */
+bool
+_mesa_compressed_pixel_storage_error_check(
+ struct gl_context *ctx,
+ GLint dimensions,
+ const struct gl_pixelstore_attrib *packing,
+ const char *caller)
+{
+ if (!_mesa_is_desktop_gl(ctx) || !packing->CompressedBlockSize)
+ return true;
+
+ if (packing->CompressedBlockWidth &&
+ packing->SkipPixels % packing->CompressedBlockWidth) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(skip-pixels %% block-width)", caller);
+ return false;
+ }
+
+ if (dimensions > 1 &&
+ packing->CompressedBlockHeight &&
+ packing->SkipRows % packing->CompressedBlockHeight) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(skip-rows %% block-height)", caller);
+ return false;
+ }
+
+ if (dimensions > 2 &&
+ packing->CompressedBlockDepth &&
+ packing->SkipImages % packing->CompressedBlockDepth) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(skip-images %% block-depth)", caller);
+ return false;
+ }
+
+ return true;
+}