4 files changed, 25 insertions, 3 deletions
diff --git a/progs/tests/packedpixels.c b/progs/tests/packedpixels.c
index 1703b271cb0..f4e5d0a7953 100644
--- a/progs/tests/packedpixels.c
+++ b/progs/tests/packedpixels.c
@@ -191,6 +191,16 @@ MakeTexture(const struct pixel_format *format, GLenum intFormat, GLboolean swap)
                    format->format, format->type, texBuffer);
    }
 
+   if (0) {
+      GLint r, g, b, a;
+      glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_RED_SIZE, &r);
+      glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_GREEN_SIZE, &g);
+      glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_BLUE_SIZE, &b);
+      glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_ALPHA_SIZE, &a);
+      printf("sizes: %d %d %d %d\n", r, g, b, a);
+      glGetError();
+   }                              
+
    if (glGetError()) {
       printf("GL Error for %s\n", format->name);
       memset(texBuffer, 255, 1000);
diff --git a/progs/tests/texcmp.c b/progs/tests/texcmp.c
index 45935e19a35..3f2cee6e46d 100644
--- a/progs/tests/texcmp.c
+++ b/progs/tests/texcmp.c
@@ -106,6 +106,8 @@ static void Display( void )
    glRotatef(Rot, 0, 0, 1);
 
    glEnable(GL_TEXTURE_2D);
+   glEnable(GL_BLEND);
+
    glBegin(GL_POLYGON);
    glTexCoord2f(0, 1);  glVertex2f(-1, -0.5);
    glTexCoord2f(1, 1);  glVertex2f( 1, -0.5);
@@ -115,7 +117,10 @@ static void Display( void )
 
    glPopMatrix();
 
+   glDisable(GL_TEXTURE_2D);
+
    /* info */
+   glDisable(GL_BLEND);
    glColor4f(1, 1, 1, 1);
 
    glRasterPos3f(-1.2, -0.7, 0);
diff --git a/progs/tests/texcompsub.c b/progs/tests/texcompsub.c
index 50106bf1e22..215f5711d95 100644
--- a/progs/tests/texcompsub.c
+++ b/progs/tests/texcompsub.c
@@ -35,6 +35,8 @@ LoadCompressedImage(void)
    unsigned char ImgDataTemp[ImgSize / 4];
    unsigned i;
    const GLenum filter = GL_LINEAR;
+   const int half = ImgSize / 2;
+
    glTexImage2D(Target, 0, CompFormat, ImgWidth, ImgHeight, 0,
                 GL_RGB, GL_UNSIGNED_BYTE, NULL);
 
@@ -42,11 +44,11 @@ LoadCompressedImage(void)
    glCompressedTexSubImage2DARB(Target, 0,
                                 0, 0, /* pos */
                                 ImgWidth, ImgHeight / 2,
-                                CompFormat, ImgSize / 2, ImgData + ImgSize / 2);
+                                CompFormat, ImgSize / 2, ImgData /*+ ImgSize / 2*/);
 
    /* top left */
    for (i = 0; i < ImgHeight / 8; i++) {
-      memcpy(&ImgDataTemp[i * ImgWidth], &ImgData[i * 2 * ImgWidth], ImgWidth);
+      memcpy(&ImgDataTemp[i * ImgWidth], &ImgData[half + i * 2 * ImgWidth], ImgWidth);
    }
    glCompressedTexSubImage2DARB(Target, 0,
                                 0, ImgHeight / 2, /* pos */
@@ -55,7 +57,7 @@ LoadCompressedImage(void)
 
    /* top right */
    for (i = 0; i < ImgHeight / 8; i++) {
-      memcpy(&ImgDataTemp[i * ImgWidth], &ImgData[i * 2 * ImgWidth + ImgWidth], ImgWidth);
+      memcpy(&ImgDataTemp[i * ImgWidth], &ImgData[half + i * 2 * ImgWidth + ImgWidth], ImgWidth);
    }
    glCompressedTexSubImage2DARB(Target, 0,
                                 ImgWidth / 2, ImgHeight / 2, /* pos */
diff --git a/progs/tests/zreaddraw.c b/progs/tests/zreaddraw.c
index 7dfed20cfb9..7740695bb66 100644
--- a/progs/tests/zreaddraw.c
+++ b/progs/tests/zreaddraw.c
@@ -58,6 +58,10 @@ static void Display(void)
       printf("Depth value range: [%f, %f]\n", min, max);
    }
 
+   /* Draw the Z image as luminance above original rendering */
+   glWindowPos2i(0, 100);
+   glDrawPixels(100, 100, GL_LUMINANCE, depthType, depth);
+
    if (TestPacking) {
       glPixelStorei(GL_PACK_ROW_LENGTH, 0);
       glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
@@ -100,6 +104,7 @@ static void Display(void)
    glReadPixels(100, 0, 400, 400, GL_DEPTH_COMPONENT, GL_FLOAT, depth2);
    /* draw as luminance */
    glPixelZoom(1.0, 1.0);
+   glWindowPos2i(100, 0);
    glDrawPixels(400, 400, GL_LUMINANCE, GL_FLOAT, depth2);
 
    glutSwapBuffers();