From 7e1ad9cd37a7725f1f5f0545a98d97c4c9c1e1de Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Sat, 22 Sep 2012 09:30:24 -0600 Subject: [PATCH] mesa: consolidate glTexSubImage() error checking --- src/mesa/main/teximage.c | 78 +++++++++++++++++++++++------------------------- 1 file changed, 38 insertions(+), 40 deletions(-) diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c index 4ae8417..81ca753 100644 --- a/src/mesa/main/teximage.c +++ b/src/mesa/main/teximage.c @@ -2124,14 +2124,23 @@ error: * to the OpenGL specification. */ static GLboolean -subtexture_error_check( struct gl_context *ctx, GLuint dimensions, +texsubimage_error_check(struct gl_context *ctx, GLuint dimensions, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint width, GLint height, GLint depth, - GLenum format, GLenum type ) + GLenum format, GLenum type) { + struct gl_texture_object *texObj; + struct gl_texture_image *texImage; GLenum err; + /* check target (proxies not allowed) */ + if (!legal_texsubimage_target(ctx, dimensions, target)) { + _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)", + dimensions, _mesa_lookup_enum_by_nr(target)); + return GL_TRUE; + } + /* level check */ if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) { _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level); @@ -2180,82 +2189,76 @@ subtexture_error_check( struct gl_context *ctx, GLuint dimensions, return GL_TRUE; } - return GL_FALSE; -} - + /* Get dest texture object / image pointers */ + texObj = _mesa_get_current_tex_object(ctx, target); + if (!texObj) { + /* must be out of memory */ + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage%dD()", dimensions); + return GL_TRUE; + } -/** - * Do second part of glTexSubImage which depends on the destination texture. - * \return GL_TRUE if error recorded, GL_FALSE otherwise - */ -static GLboolean -subtexture_error_check2( struct gl_context *ctx, GLuint dimensions, - GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLint width, GLint height, GLint depth, - GLenum format, GLenum type, - const struct gl_texture_image *destTex ) -{ - if (!destTex) { - /* undefined image level */ - _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions); + texImage = _mesa_select_tex_image(ctx, texObj, target, level); + if (!texImage) { + /* non-existant texture level */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glTexSubImage%dD(invalid texture image)", dimensions); return GL_TRUE; } - if (xoffset < -((GLint)destTex->Border)) { + if (xoffset < -((GLint)texImage->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)", dimensions); return GL_TRUE; } - if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) { + if (xoffset + width > (GLint) (texImage->Width + texImage->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)", dimensions); return GL_TRUE; } if (dimensions > 1) { - GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : destTex->Border; + GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : texImage->Border; if (yoffset < -yBorder) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)", dimensions); return GL_TRUE; } - if (yoffset + height > (GLint) destTex->Height + yBorder) { + if (yoffset + height > (GLint) texImage->Height + yBorder) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)", dimensions); return GL_TRUE; } } if (dimensions > 2) { - GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : destTex->Border; + GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : texImage->Border; if (zoffset < -zBorder) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)"); return GL_TRUE; } - if (zoffset + depth > (GLint) destTex->Depth + zBorder) { + if (zoffset + depth > (GLint) texImage->Depth + zBorder) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)"); return GL_TRUE; } } - if (_mesa_is_format_compressed(destTex->TexFormat)) { - if (compressedteximage_only_format(ctx, destTex->InternalFormat)) { + if (_mesa_is_format_compressed(texImage->TexFormat)) { + if (compressedteximage_only_format(ctx, texImage->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, + texImage->TexFormat, xoffset, yoffset, width, height, - destTex->Width, destTex->Height)) { + texImage->Width, texImage->Height)) { return GL_TRUE; } } if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) { /* both source and dest must be integer-valued, or neither */ - if (_mesa_is_format_integer_color(destTex->TexFormat) != + if (_mesa_is_format_integer_color(texImage->TexFormat) != _mesa_is_enum_format_integer(format)) { _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD(integer/non-integer format mismatch)", @@ -3160,8 +3163,9 @@ texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, if (ctx->NewState & _NEW_PIXEL) _mesa_update_state(ctx); - if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset, - width, height, depth, format, type)) { + if (texsubimage_error_check(ctx, dims, target, level, + xoffset, yoffset, zoffset, + width, height, depth, format, type)) { return; /* error was detected */ } @@ -3171,13 +3175,7 @@ texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, { texImage = _mesa_select_tex_image(ctx, texObj, target, level); - if (subtexture_error_check2(ctx, dims, target, level, - xoffset, yoffset, zoffset, - width, height, depth, - format, type, texImage)) { - /* error was recorded */ - } - else if (width > 0 && height > 0 && depth > 0) { + if (width > 0 && height > 0 && depth > 0) { /* If we have a border, offset=-1 is legal. Bias by border width. */ switch (dims) { case 3: -- 2.7.4