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- added some console output to show which texture compression types the opengl driver supports

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This commit is contained in:
Mark Vejvoda 2010-10-29 00:45:09 +00:00
parent 7f32456736
commit 70927e5979
1 changed files with 75 additions and 3 deletions
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78
source/shared_lib/sources/graphics/gl/texture_gl.cpp
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@ -10,12 +10,12 @@
// ==============================================================
#include "texture_gl.h"
#include <stdexcept>
#include "opengl.h"
#include "leak_dumper.h"
#include <iostream>
#include <vector>
#include "leak_dumper.h"
using namespace std;
@ -25,11 +25,83 @@ using namespace Platform;
const uint64 MIN_BYTES_TO_COMPRESS = 12;
static std::string getSupportCompressedTextureFormatString(int format) {
std::string result = intToStr(format);
switch(format) {
case GL_COMPRESSED_ALPHA:
result = "GL_COMPRESSED_ALPHA";
break;
case GL_COMPRESSED_LUMINANCE:
result = "GL_COMPRESSED_LUMINANCE";
break;
case GL_COMPRESSED_LUMINANCE_ALPHA:
result = "GL_COMPRESSED_LUMINANCE_ALPHA";
break;
case GL_COMPRESSED_INTENSITY:
result = "GL_COMPRESSED_INTENSITY";
break;
case GL_COMPRESSED_RGB:
result = "GL_COMPRESSED_RGB";
break;
case GL_COMPRESSED_RGBA:
result = "GL_COMPRESSED_RGBA";
break;
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
result = "GL_COMPRESSED_RGB_S3TC_DXT1_EXT";
break;
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
result = "GL_COMPRESSED_RGBA_S3TC_DXT1_EXT";
break;
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
result = "GL_COMPRESSED_RGBA_S3TC_DXT3_EXT";
break;
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
result = "GL_COMPRESSED_RGBA_S3TC_DXT5_EXT";
break;
}
return result;
}
static int getNumCompressedTextureFormats() {
int numCompressedTextureFormats = 0;
glGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numCompressedTextureFormats);
return numCompressedTextureFormats;
}
static std::vector<int> getSupportCompressedTextureFormats() {
std::vector<int> result;
int count = getNumCompressedTextureFormats();
if(count > 0) {
int *formats = new int[count];
glGetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS,&formats[0]);
for(int i = 0; i < count; ++i) {
result.push_back(formats[i]);
}
delete [] formats;
}
if(Texture::useTextureCompression == true) {
printf("------------------------------------------------\n");
printf("**** getSupportCompressedTextureFormats() result.size() = %d, count = %d\n",(int)result.size(),count);
for(int i = 0; i < result.size(); ++i) {
printf("Texture Compression #i = %d, result[i] = %d [%s]\n",i,result[i],getSupportCompressedTextureFormatString(result[i]).c_str());
}
printf("------------------------------------------------\n");
}
return result;
}
GLint toCompressionFormatGl(GLint format) {
if(Texture::useTextureCompression == false) {
return format;
}
static std::vector<int> supportedCompressionFormats = getSupportCompressedTextureFormats();
if(supportedCompressionFormats.size() <= 0) {
return format;
}
//GL_COMPRESSED_ALPHA <- white things but tile ok!
//GL_COMPRESSED_LUMINANCE <- black tiles
//GL_COMPRESSED_LUMINANCE_ALPHA <- black tiles