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support gl 1.1

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This commit is contained in:
David Rose 2002-02-21 01:04:32 +00:00
parent d4e73d4db7
commit 3978b8ecef
2 changed files with 34 additions and 13 deletions
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5
panda/src/glgsg/config_glgsg.cxx
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@ -68,7 +68,12 @@ bool gl_auto_normalize_lighting = config_glgsg.GetBool("auto-normalize-lighting"
// Configure this true to indicate the current version of GL fully
// supports textures with B, G, R ordering; false if it only supports
// R, G, B.
#ifdef GL_BGR
bool gl_supports_bgr = config_glgsg.GetBool("gl-supports-bgr", true);
#else
// If it's not even defined, we can't use it.
bool gl_supports_bgr = false;
#endif // GL_BGR
GLDecalType gl_decal_type = GDT_offset;

42
panda/src/glgsg/glGraphicsStateGuardian.cxx
View File

@ -2223,18 +2223,20 @@ copy_pixel_buffer(PixelBuffer *pb, const DisplayRegion *dr) {
case GL_DEPTH_COMPONENT:
glgsg_cat.debug(false) << "GL_DEPTH_COMPONENT, ";
break;
case GL_BGR:
glgsg_cat.debug(false) << "GL_BGR, ";
break;
case GL_RGB:
glgsg_cat.debug(false) << "GL_RGB, ";
break;
case GL_BGRA:
glgsg_cat.debug(false) << "GL_BGRA, ";
break;
case GL_RGBA:
glgsg_cat.debug(false) << "GL_RGBA, ";
break;
#ifdef GL_BGR
case GL_BGR:
glgsg_cat.debug(false) << "GL_BGR, ";
break;
case GL_BGRA:
glgsg_cat.debug(false) << "GL_BGRA, ";
break;
#endif // GL_BGR
default:
glgsg_cat.debug(false) << "unknown, ";
break;
@ -2356,18 +2358,20 @@ draw_pixel_buffer(PixelBuffer *pb, const DisplayRegion *dr,
case GL_DEPTH_COMPONENT:
glgsg_cat.debug(false) << "GL_DEPTH_COMPONENT, ";
break;
case GL_BGR:
glgsg_cat.debug(false) << "GL_BGR, ";
break;
case GL_RGB:
glgsg_cat.debug(false) << "GL_RGB, ";
break;
case GL_BGRA:
glgsg_cat.debug(false) << "GL_BGRA, ";
break;
case GL_RGBA:
glgsg_cat.debug(false) << "GL_RGBA, ";
break;
#ifdef GL_BGR
case GL_BGR:
glgsg_cat.debug(false) << "GL_BGR, ";
break;
case GL_BGRA:
glgsg_cat.debug(false) << "GL_BGRA, ";
break;
#endif // GL_BGR
default:
glgsg_cat.debug(false) << "unknown, ";
break;
@ -3796,12 +3800,16 @@ compute_gl_image_size(int xsize, int ysize, int external_format, int type) {
num_components = 2;
break;
#ifdef GL_BGR
case GL_BGR:
#endif
case GL_RGB:
num_components = 3;
break;
#ifdef GL_BGR
case GL_BGRA:
#endif
case GL_RGBA:
num_components = 4;
break;
@ -4070,14 +4078,22 @@ get_external_image_format(PixelBuffer::Format format) {
case PixelBuffer::F_rgb8:
case PixelBuffer::F_rgb12:
case PixelBuffer::F_rgb332:
#ifdef GL_BGR
return gl_supports_bgr ? GL_BGR : GL_RGB;
#else
return GL_RGB;
#endif // GL_BGR
case PixelBuffer::F_rgba:
case PixelBuffer::F_rgbm:
case PixelBuffer::F_rgba4:
case PixelBuffer::F_rgba5:
case PixelBuffer::F_rgba8:
case PixelBuffer::F_rgba12:
#ifdef GL_BGR
return gl_supports_bgr ? GL_BGRA : GL_RGBA;
#else
return GL_RGBA;
#endif // GL_BGR
case PixelBuffer::F_luminance:
return GL_LUMINANCE;
case PixelBuffer::F_luminance_alphamask:
@ -4087,7 +4103,7 @@ get_external_image_format(PixelBuffer::Format format) {
glgsg_cat.error()
<< "Invalid PixelBuffer::Format value in get_external_image_format(): "
<< (int)format << "\n";
return GL_BGR;
return GL_RGB;
}
////////////////////////////////////////////////////////////////////