Mesa (master): mesa: fix glTexImage proxy texture error generation
Brian Paul
brianp at kemper.freedesktop.org
Fri Aug 24 12:20:52 UTC 2012
Module: Mesa
Branch: master
Commit: 1f5b1f98468d5e80be39e619ed15c422fbede8d3
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=1f5b1f98468d5e80be39e619ed15c422fbede8d3
Author: Brian Paul <brianp at vmware.com>
Date: Tue Aug 21 20:22:27 2012 -0600
mesa: fix glTexImage proxy texture error generation
When calling glTexImage() with a proxy target most error conditions should
generate a GL error. We were erroneously doing the proxy-error behaviour
(where we zeroed-out the image's width/height/depth/format fields) in too
many places.
There's another issue with proxy textures, but that'll be fixed in the
next patch.
Reviewed-by: Anuj Phogat <anuj.phogat at gmail.com>
---
src/mesa/main/teximage.c | 95 +++++++++++++++++++++-------------------------
1 files changed, 43 insertions(+), 52 deletions(-)
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index 2380efe..4731798 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -1672,12 +1672,17 @@ texture_error_check( struct gl_context *ctx,
*/
const GLboolean indexFormat = (format == GL_COLOR_INDEX);
+ /* Note: for proxy textures, some error conditions immediately generate
+ * a GL error in the usual way. But others do not generate a GL error.
+ * Instead, they cause the width, height, depth, format fields of the
+ * texture image to be zeroed-out. The GL spec seems to indicate that the
+ * zero-out behaviour is only used in cases related to memory allocation.
+ */
+
/* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(level=%d)", dimensions, level);
- }
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(level=%d)", dimensions, level);
return GL_TRUE;
}
@@ -1686,18 +1691,14 @@ texture_error_check( struct gl_context *ctx,
((ctx->API != API_OPENGL ||
target == GL_TEXTURE_RECTANGLE_NV ||
target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(border=%d)", dimensions, border);
- }
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(border=%d)", dimensions, border);
return GL_TRUE;
}
if (width < 0 || height < 0 || depth < 0) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(width, height or depth < 0)", dimensions);
- }
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(width, height or depth < 0)", dimensions);
return GL_TRUE;
}
@@ -1751,22 +1752,18 @@ texture_error_check( struct gl_context *ctx,
/* Check internalFormat */
if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(internalFormat=%s)",
- dimensions, _mesa_lookup_enum_by_nr(internalFormat));
- }
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(internalFormat=%s)",
+ dimensions, _mesa_lookup_enum_by_nr(internalFormat));
return GL_TRUE;
}
/* Check incoming image format and type */
err = _mesa_error_check_format_and_type(ctx, format, type);
if (err != GL_NO_ERROR) {
- if (!isProxy) {
- _mesa_error(ctx, err,
- "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
- dimensions, format, type);
- }
+ _mesa_error(ctx, err,
+ "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
+ dimensions, format, type);
return GL_TRUE;
}
@@ -1777,10 +1774,9 @@ texture_error_check( struct gl_context *ctx,
(_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
(_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
(_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
- if (!isProxy)
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
- dimensions, internalFormat, format);
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
+ dimensions, internalFormat, format);
return GL_TRUE;
}
@@ -1791,7 +1787,8 @@ texture_error_check( struct gl_context *ctx,
type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
char message[100];
_mesa_snprintf(message, sizeof(message),
- "glTexImage%dD(format/type YCBCR mismatch", dimensions);
+ "glTexImage%dD(format/type YCBCR mismatch)",
+ dimensions);
_mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
return GL_TRUE; /* error */
}
@@ -1799,18 +1796,17 @@ texture_error_check( struct gl_context *ctx,
target != GL_PROXY_TEXTURE_2D &&
target != GL_TEXTURE_RECTANGLE_NV &&
target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
- if (!isProxy)
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glTexImage%dD(bad target for YCbCr texture)",
+ dimensions);
return GL_TRUE;
}
if (border != 0) {
- if (!isProxy) {
- char message[100];
- _mesa_snprintf(message, sizeof(message),
- "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
- dimensions, border);
- _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
- }
+ char message[100];
+ _mesa_snprintf(message, sizeof(message),
+ "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
+ dimensions, border);
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
return GL_TRUE;
}
}
@@ -1831,9 +1827,9 @@ texture_error_check( struct gl_context *ctx,
target != GL_PROXY_TEXTURE_RECTANGLE_ARB &&
!((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) &&
(ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4))) {
- if (!isProxy)
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glTexImage(target/internalFormat)");
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glTexImage%dD(bad target for depth texture)",
+ dimensions);
return GL_TRUE;
}
}
@@ -1841,21 +1837,18 @@ texture_error_check( struct gl_context *ctx,
/* additional checks for compressed textures */
if (_mesa_is_compressed_format(ctx, internalFormat)) {
if (!target_can_be_compressed(ctx, target, internalFormat)) {
- if (!isProxy)
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glTexImage%dD(target)", dimensions);
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glTexImage%dD(target can't be compressed)", dimensions);
return GL_TRUE;
}
if (compressedteximage_only_format(ctx, internalFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%dD(no compression for format)", dimensions);
+ "glTexImage%dD(no compression for format)", dimensions);
return GL_TRUE;
}
if (border != 0) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%dD(border!=0)", dimensions);
- }
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexImage%dD(border!=0)", dimensions);
return GL_TRUE;
}
}
@@ -1864,11 +1857,9 @@ texture_error_check( struct gl_context *ctx,
if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) &&
(_mesa_is_enum_format_integer(format) !=
_mesa_is_enum_format_integer(internalFormat))) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%dD(integer/non-integer format mismatch)",
- dimensions);
- }
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexImage%dD(integer/non-integer format mismatch)",
+ dimensions);
return GL_TRUE;
}
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