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Diffstat (limited to 'src/mesa/main/teximage.c')
-rw-r--r--src/mesa/main/teximage.c157
1 files changed, 84 insertions, 73 deletions
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index d9df7866394..83e79a5a31c 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -1343,60 +1343,6 @@ _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
/**
- * Do error checking of xoffset, yoffset, width, height for glTexSubImage,
- * glCopyTexSubImage and glCompressedTexSubImage.
- * Basically, check that the subregion is aligned to the compressed format's
- * block size. See comments in function for more info.
- * \return GL_TRUE if error found, GL_FALSE otherwise.
- */
-static GLboolean
-error_check_subtexture_dimensions(struct gl_context *ctx,
- const char *function,
- GLuint dims,
- gl_format texFormat,
- GLint xoffset, GLint yoffset,
- GLsizei subWidth, GLsizei subHeight,
- GLsizei texWidth, GLsizei texHeight)
-{
- GLuint bw, bh;
-
- /*
- * The OpenGL spec (and GL_ARB_texture_compression) says only whole
- * compressed texture images can be updated. But, that restriction may be
- * relaxed for particular compressed formats. At this time, all the
- * compressed formats supported by Mesa allow sub-textures to be updated
- * along compressed block boundaries.
- */
- _mesa_get_format_block_size(texFormat, &bw, &bh);
-
- /* offset must be multiple of block size */
- if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "%s%dD(xoffset = %d, yoffset = %d)",
- function, dims, xoffset, yoffset);
- return GL_TRUE;
- }
-
- /* size must be multiple of bw by bh or equal to whole texture size */
- if ((subWidth % bw != 0) && subWidth != texWidth) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "%s%dD(width = %d)", function, dims, subWidth);
- return GL_TRUE;
- }
-
- if ((subHeight % bh != 0) && subHeight != texHeight) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "%s%dD(height = %d)", function, dims, subHeight);
- return GL_TRUE;
- }
-
- return GL_FALSE;
-}
-
-
-
-
-/**
* This is the fallback for Driver.TestProxyTexImage() for doing device-
* specific texture image size checks.
*
@@ -1703,6 +1649,17 @@ compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth,
}
+/*
+ * Return compressed texture block size, in pixels.
+ */
+static void
+get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh)
+{
+ gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
+ _mesa_get_format_block_size(mesaFormat, bw, bh);
+}
+
+
/**
* Test the glTexImage[123]D() parameters for errors.
*
@@ -2238,19 +2195,35 @@ subtexture_error_check2( struct gl_context *ctx, GLuint dimensions,
}
if (_mesa_is_format_compressed(destTex->TexFormat)) {
+ GLuint bw, bh;
+
if (compressedteximage_only_format(ctx, destTex->InternalFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glTexSubImage%dD(no compression for format)", dimensions);
return GL_TRUE;
}
- if (error_check_subtexture_dimensions(ctx, "glTexSubImage", dimensions,
- destTex->TexFormat,
- xoffset, yoffset,
- width, height,
- destTex->Width, destTex->Height)) {
+ /* do tests which depend on compression block size */
+ _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh);
+
+ /* offset must be multiple of block size */
+ if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
+ dimensions, xoffset, yoffset);
return GL_TRUE;
}
+ /* size must be multiple of bw by bh or equal to whole texture size */
+ if ((width % bw != 0) && (GLuint) width != destTex->Width) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%dD(width = %d)", dimensions, width);
+ return GL_TRUE;
+ }
+ if ((height % bh != 0) && (GLuint) height != destTex->Height) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%dD(height = %d)", dimensions, height);
+ return GL_TRUE;
+ }
}
if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) {
@@ -2556,14 +2529,23 @@ copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions,
"glCopyTexSubImage%dD(no compression for format)", dimensions);
return GL_TRUE;
}
-
- if (error_check_subtexture_dimensions(ctx, "glCopyTexSubImage",
- dimensions, teximage->TexFormat,
- xoffset, yoffset, width, height,
- teximage->Width,
- teximage->Height)) {
+ /* offset must be multiple of 4 */
+ if ((xoffset & 3) || (yoffset & 3)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions);
return GL_TRUE;
}
+ /* size must be multiple of 4 */
+ if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(width)", dimensions);
+ return GL_TRUE;
+ }
+ if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(height)", dimensions);
+ return GL_TRUE;
+ }
}
if (teximage->InternalFormat == GL_YCBCR_MESA) {
@@ -3537,7 +3519,7 @@ compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions,
GLenum format, GLsizei imageSize)
{
GLint expectedSize, maxLevels = 0, maxTextureSize;
-
+ GLuint bw, bh;
(void) zoffset;
if (dimensions == 1) {
@@ -3589,6 +3571,16 @@ compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions,
/*
* do checks which depend on compression block size
*/
+ get_compressed_block_size(format, &bw, &bh);
+
+ if ((xoffset % bw != 0) || (yoffset % bh != 0))
+ return GL_INVALID_VALUE;
+
+ if ((width % bw != 0) && width != 2 && width != 1)
+ return GL_INVALID_VALUE;
+
+ if ((height % bh != 0) && height != 2 && height != 1)
+ return GL_INVALID_VALUE;
expectedSize = compressed_tex_size(width, height, depth, format);
if (expectedSize != imageSize)
@@ -3604,7 +3596,6 @@ compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions,
*/
static GLboolean
compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims,
- GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height,
GLsizei depth, GLenum format,
struct gl_texture_image *texImage)
@@ -3623,13 +3614,34 @@ compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims,
return GL_TRUE;
}
- if (error_check_subtexture_dimensions(ctx, "glCompressedTexSubImage", dims,
- texImage->TexFormat,
- xoffset, yoffset, width, height,
- texImage->Width, texImage->Height)) {
+ if (((width == 1 || width == 2) &&
+ width != (GLsizei) texImage->Width) ||
+ (width > (GLsizei) texImage->Width)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCompressedTexSubImage%uD(width=%d)", dims, width);
return GL_TRUE;
}
+ if (dims >= 2) {
+ if (((height == 1 || height == 2) &&
+ height != (GLsizei) texImage->Height) ||
+ (height > (GLsizei) texImage->Height)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCompressedTexSubImage%uD(height=%d)", dims, height);
+ return GL_TRUE;
+ }
+ }
+
+ if (dims >= 3) {
+ if (((depth == 1 || depth == 2) &&
+ depth != (GLsizei) texImage->Depth) ||
+ (depth > (GLsizei) texImage->Depth)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCompressedTexSubImage%uD(depth=%d)", dims, depth);
+ return GL_TRUE;
+ }
+ }
+
return GL_FALSE;
}
@@ -3701,8 +3713,7 @@ compressed_tex_sub_image(GLuint dims, GLenum target, GLint level,
texImage = _mesa_select_tex_image(ctx, texObj, target, level);
assert(texImage);
- if (compressed_subtexture_error_check2(ctx, dims, xoffset, yoffset,
- width, height, depth,
+ if (compressed_subtexture_error_check2(ctx, dims, width, height, depth,
format, texImage)) {
/* error was recorded */
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 13:47:45 +0000