commit 4ef1f3474e12f1c78af44947c44a22c99d8c2557
author Guy Zadikario <guy@graphtech.co.il> Sun Jun 12 15:19:30 2011 +0300
committer Guy Zadickario <guy@graphtech.co.il> Sat Jun 25 16:56:08 2011 +0300
tree 42013b7da0dd2c58b43188a0377290cb41f47353
parent 88ad268dd9301c4845302d59063e016971135ce3

emulator opengl: initialize new colorbuffers

Initialize new allocated color buffers with zeros.

Change-Id: I64a63c2eda83fdec1926c387e171324fb07ebe83

tools/emulator/opengl/host/libs/libOpenglRender/ColorBuffer.cpp

diff --git a/tools/emulator/opengl/host/libs/libOpenglRender/ColorBuffer.cpp b/tools/emulator/opengl/host/libs/libOpenglRender/ColorBuffer.cpp
index 099eeea..adc84d2 100644
--- a/tools/emulator/opengl/host/libs/libOpenglRender/ColorBuffer.cpp
+++ b/tools/emulator/opengl/host/libs/libOpenglRender/ColorBuffer.cpp
@@ -56,10 +56,16 @@
 
     s_gl.glGenTextures(1, &cb->m_tex);
     s_gl.glBindTexture(GL_TEXTURE_2D, cb->m_tex);
+    int nComp = (texInternalFormat == GL_RGB ? 3 : 4);
+    char *zBuff = new char[nComp*p_width*p_height];
+    if (zBuff) {
+        memset(zBuff, 0, nComp*p_width*p_height);
+    }
     s_gl.glTexImage2D(GL_TEXTURE_2D, 0, texInternalFormat,
                       p_width, p_height, 0,
                       texInternalFormat,
-                      GL_UNSIGNED_BYTE, NULL);
+                      GL_UNSIGNED_BYTE, zBuff);
+    delete [] zBuff;
     s_gl.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
     s_gl.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
     s_gl.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);