lxdream.org :: lxdream/src/pvr2/glutil.h r1282:9f445c5e252b

filename	src/pvr2/glutil.h
changeset	1282:9f445c5e252b
prev	1275:83b15705cdde
next	1287:dac8f363f1fe
author	nkeynes
date	Tue Mar 27 08:23:52 2012 +1000 (10 years ago)
permissions	-rw-r--r--
last change	Android: Preserve render buffers when switching away from app. - fix gl_read_render_buffer + gl_load_frame_buffer to work in GLES a) glReadPixels only (guaranteed to) work for GL_RGBA,GL_UNSIGNED_BYTE b) glTexSubImage2D can only load GL_RGBA into a GL_RGBA render buffer.

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     1.1 --- a/src/pvr2/glutil.h	Tue Mar 20 08:29:38 2012 +1000
     1.2 +++ b/src/pvr2/glutil.h	Tue Mar 27 08:23:52 2012 +1000
     1.3 @@ -60,6 +60,15 @@
     1.4  gboolean isGLShaderSupported();
     1.5  GLint glGetMaxColourAttachments();
     1.6  
     1.7 +/**
     1.8 + * Wrapper function for glTexImage2D calls that may have BGRA data - on systems
     1.9 + * where this isn't directly supported, swizzle the data into an acceptable RGBA
    1.10 + * equivalent. If preserveData is true, data will not be modified - otherwise
    1.11 + * the method may swizzle data in-place.
    1.12 + */
    1.13 +void glTexImage2DBGRA( int level, GLint intFormat, int width, int height, GLint format, GLint type, unsigned char *data, int preserveData );
    1.14 +void glTexSubImage2DBGRA( int level, int xoff, int yoff, int width, int height, GLint format, GLint type, unsigned char *data, int preserveData );
    1.15 +
    1.16  /****** Extension variant wrangling *****/
    1.17  
    1.18  #if defined(GL_MIRRORED_REPEAT_ARB) && !defined(GL_MIRRORED_REPEAT)
    1.19 @@ -141,8 +150,6 @@
    1.20  #define glCheckFramebufferStatus glCheckFramebufferStatusEXT
    1.21  #endif
    1.22  
    1.23 -
    1.24 -
    1.25  /* Define an orthographic transform matrix, given the bounding box (assuming origin at 0) */
    1.26  void defineOrthoMatrix( GLfloat *matrix, GLfloat width, GLfloat height, GLfloat znear, GLfloat zfar );
    1.27