An additional set of checks for:
Getting 0x0 image from a 8x8 source.
Getting 0x0 image from a 0x0 source.
Getting offset+width > texwidth when width==0.
---
tests/spec/arb_get_texture_sub_image/errors.c | 60 +++++++++++++++++++++++++++
1 file changed, 60 insertions(+)
diff --git a/tests/spec/arb_get_texture_sub_image/errors.c
b/tests/spec/arb_get_texture_sub_image/errors.c
index 5a702c2..8eb005e 100644
--- a/tests/spec/arb_get_texture_sub_image/errors.c
+++ b/tests/spec/arb_get_texture_sub_image/errors.c
@@ -276,6 +276,65 @@ test_cubemap_faces(void)
}
+static bool
+test_zero_size_image(void)
+{
+ GLubyte image[8*8*4];
+ GLuint tex;
+ bool pass = true;
+
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, tex);
+
+ glTexImage2D(GL_TEXTURE_2D,
+ 0, GL_RGBA, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, image);
+
+ /* getting 0x0 image from 8x8 source should work */
+ glGetTextureSubImage(tex, 0,
+ 0, 0, 0,
+ 0, 0, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(image), image);
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ pass = false;
+
+ /* replace image with 0x0 image (deallocates old one) */
+ glTexImage2D(GL_TEXTURE_2D,
+ 0, GL_RGBA, 0, 0, 0, GL_RGBA, GL_UNSIGNED_BYTE, image);
+
+ /* getting 0x0 image from 0x0 source should work */
+ glGetTextureSubImage(tex, 0,
+ 0, 0, 0,
+ 0, 0, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(image), image);
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ pass = false;
+
+ /* getting 0x0 image at an offset from 0x0 source should error */
+ glGetTextureSubImage(tex, 0,
+ 1, 2, 0, /* offset */
+ 0, 0, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(image), image);
+ if (!piglit_check_gl_error(GL_INVALID_VALUE))
+ pass = false;
+
+ /* getting 2x2 image from 0x0 source should generate error */
+ glGetTextureSubImage(tex, 0,
+ 0, 0, 0,
+ 2, 2, 1,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(image), image);
+ if (!piglit_check_gl_error(GL_INVALID_VALUE))
+ pass = false;
+
+ glDeleteTextures(1, &tex);
+
+ return pass;
+}
+
+
void
piglit_init(int argc, char **argv)
{
@@ -288,6 +347,7 @@ piglit_init(int argc, char **argv)
pass = test_buffer_size() && pass;
pass = test_invalid_values() && pass;
pass = test_cubemap_faces() && pass;
+ pass = test_zero_size_image() && pass;
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
--
1.9.1
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