Previously, the test made the erroneous assumption that if the size of
a texture is 2^n, then that texture has n miplevels. This was
wrong--the texture has n+1 miplevels, ranging in size from 2^n to 2^0.
---
.../framebuffer-blit-levels.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/tests/spec/arb_framebuffer_object/framebuffer-blit-levels.c
b/tests/spec/arb_framebuffer_object/framebuffer-blit-levels.c
index 16680c4..eb951bc 100644
--- a/tests/spec/arb_framebuffer_object/framebuffer-blit-levels.c
+++ b/tests/spec/arb_framebuffer_object/framebuffer-blit-levels.c
@@ -80,6 +80,7 @@ GLenum framebuffer_attachment;
#define LOG2_SIZE 7
#define SIZE (1 << LOG2_SIZE)
+#define NUM_LEVELS (LOG2_SIZE + 1)
/**
* Generate a block of test data in which each pixel has a unique RGBA
@@ -195,7 +196,7 @@ piglit_init(int argc, char **argv)
GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
GL_NEAREST);
- for (level = 0; level < LOG2_SIZE; ++level) {
+ for (level = 0; level < NUM_LEVELS; ++level) {
glTexImage2D(GL_TEXTURE_2D, level,
texture_internal_format,
SIZE >> level, SIZE >> level,
@@ -228,7 +229,7 @@ piglit_display()
unsigned level;
/* Populate the test texture */
- for (level = 0; level < LOG2_SIZE; ++level) {
+ for (level = 0; level < NUM_LEVELS; ++level) {
unsigned width = SIZE >> level;
unsigned height = SIZE >> level;
create_test_data(data, texture_format, level, width, height);
@@ -263,7 +264,7 @@ piglit_display()
}
/* Verify the test texture */
- for (level = 0; level < LOG2_SIZE; ++level) {
+ for (level = 0; level < NUM_LEVELS; ++level) {
unsigned width = SIZE >> level;
unsigned height = SIZE >> level;
printf("Testing level %d\n", level);
--
1.7.7.6
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