void drawRect(int x, int y, int w, int h, unsigned int color)
{
GLfloat points[12];
points[0] = x; points [1] = y;
points[2] = x; points[3] = y + h;
points[4] = x + w; points[5] = y;
points[6] = x + w; points[7] = y;
points[8] = x; points[9] = y + h;
points[10] = x + w; points[11] = y + h;
GLubyte colors[6*4];
buildGLColorArray(colors, color, 6);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, points);
glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
glDrawArrays(GL_TRIANGLES, 0, 6);
glDisableClientState(GL_BLEND);
glDisableClientState(GL_VERTEX_ARRAY);
glDisable(GL_COLOR_ARRAY);
}
void drawRect(int x, int y, int w, int h, unsigned int color, GLenum blend_sfactor, GLenum blend_dfactor)
{
#ifdef USE_OPENGL_ES
GLshort points[12];
#else
GLint points[12];
#endif
points[0] = x; points [1] = y;
points[2] = x; points[3] = y + h;
points[4] = x + w; points[5] = y;
points[6] = x + w; points[7] = y;
points[8] = x; points[9] = y + h;
points[10] = x + w; points[11] = y + h;
GLubyte colors[6*4];
buildGLColorArray(colors, color, 6);
glEnable(GL_BLEND);
glBlendFunc(blend_sfactor, blend_dfactor);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
#ifdef USE_OPENGL_ES
glVertexPointer(2, GL_SHORT, 0, points);
#else
glVertexPointer(2, GL_INT, 0, points);
#endif
glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
glDrawArrays(GL_TRIANGLES, 0, 6);
glDisable(GL_BLEND);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
}