Rename variable from txt_buf to alpha_buf

1 files changed, 8 insertions, 8 deletions

diff --git a/src/gl_draw.cxx b/src/gl_draw.cxx
index 5fe5822a8..3a2949eb5 100644
--- a/src/gl_draw.cxx
+++ b/src/gl_draw.cxx
@@ -416,7 +416,7 @@ int gl_texture_fifo::compute_texture(const char* str, int n)
 
   fifo[current].scale = gl_scale;
   fifo[current].fdesc = gl_fontsize;
-  char *txt_buf = Fl_Gl_Window_Driver::global()->alpha_mask_for_string(str, n, w, h);
+  char *alpha_buf = Fl_Gl_Window_Driver::global()->alpha_mask_for_string(str, n, w, h);
 
   // save GL parameters GL_UNPACK_ROW_LENGTH and GL_UNPACK_ALIGNMENT
   GLint row_length, alignment;
@@ -430,12 +430,12 @@ int gl_texture_fifo::compute_texture(const char* str, int n)
   glPixelStorei(GL_UNPACK_ROW_LENGTH, w);
   glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
   // GL_ALPHA8 is defined in GL/gl.h of X11 and of MinGW32 and of MinGW64 and of OpenGL.framework for MacOS
-  glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_ALPHA8, w, h, 0, GL_ALPHA, GL_UNSIGNED_BYTE, txt_buf);
+  glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_ALPHA8, w, h, 0, GL_ALPHA, GL_UNSIGNED_BYTE, alpha_buf);
   /* For the record: texture construction if an alpha-only-texture is not possible
    glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, w, h, 0, GL_BGRA_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, rgba_buf);
    and also, replace GL_SRC_ALPHA by GL_ONE in glBlendFunc() call of display_texture()
    */
-  delete[] txt_buf; // free the buffer now we have copied it into the Gl texture
+  delete[] alpha_buf; // free the buffer now we have copied it into the GL texture
   glPopAttrib();
   // restore saved GL parameters
   glPixelStorei(GL_UNPACK_ROW_LENGTH, row_length);
@@ -525,13 +525,13 @@ char *Fl_Gl_Window_Driver::alpha_mask_for_string(const char *str, int n, int w,
   Fl_Surface_Device::pop_current();
   delete image_surface;
   // This gives us an RGB rendering of the text. We build an alpha channel from that.
-  char *txt_buf = new char [w * h];
+  char *alpha_buf = new char [w * h];
   for (int idx = 0; idx < w * h; ++idx)
   { // Fake up the alpha component using the green component's value
-    txt_buf[idx] = image->array[idx * 3 + 1];
+    alpha_buf[idx] = image->array[idx * 3 + 1];
   }
   delete image;
-  return txt_buf;
+  return alpha_buf;
 }
 
 
@@ -782,7 +782,7 @@ char *Fl_Cocoa_Gl_Window_Driver::alpha_mask_for_string(const char *str, int n, i
   fl_font(f, s * gl_scale);
   fl_draw(str, n, 0, fl_height() - fl_descent());
   // get the alpha channel only of the bitmap
-  char *txt_buf = new char[w*h], *r = txt_buf, *q;
+  char *alpha_buf = new char[w*h], *r = alpha_buf, *q;
   q = (char*)CGBitmapContextGetData(surf->offscreen());
   for (int i = 0; i < h; i++) {
     for (int j = 0; j < w; j++) {
@@ -792,7 +792,7 @@ char *Fl_Cocoa_Gl_Window_Driver::alpha_mask_for_string(const char *str, int n, i
   }
   Fl_Surface_Device::pop_current();
   delete surf;
-  return txt_buf;
+  return alpha_buf;
 }
 
 #endif // FL_CFG_GFX_QUARTZ