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Code Issues Projects Releases Wiki Activity

- fixed shadow mapping by removing the use of the extension: GL_ARB_shadow_ambient

Browse Source 
(thanks: asmodeus and Ishmaru)
- added some initial work for texture compression (but not active yet)
This commit is contained in:
Mark Vejvoda
2010-10-27 15:04:47 +00:00
parent 3db2b07e90
commit 78f6f49cb6
5 changed files with 101 additions and 21 deletions
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16
source/glest_game/graphics/renderer.cpp
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@@ -299,9 +299,10 @@ void Renderer::initGame(const Game *game){
//shadow mapping
glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE, GL_LUMINANCE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB);
//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC_ARB, GL_LEQUAL);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FAIL_VALUE_ARB, 1.0f-shadowAlpha);
//glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FAIL_VALUE_ARB, 1.0f-shadowAlpha);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT32,
shadowTextureSize, shadowTextureSize,
@@ -1355,6 +1356,12 @@ void Renderer::renderSurface(const int renderFps) {
glActiveTexture(fowTexUnit);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, static_cast<const Texture2DGl*>(fowTex)->getHandle());
//glCompressedTexSubImage2D(
// GL_TEXTURE_2D, 0, 0, 0,
// fowTex->getPixmap()->getW(), fowTex->getPixmap()->getH(),
// GL_ALPHA, GL_UNSIGNED_BYTE, fowTex->getPixmap()->getPixels());
glTexSubImage2D(
GL_TEXTURE_2D, 0, 0, 0,
fowTex->getPixmap()->getW(), fowTex->getPixmap()->getH(),
@@ -2872,7 +2879,8 @@ void Renderer::autoConfig(){
Config &config= Config::getInstance();
bool nvidiaCard= toLower(getGlVendor()).find("nvidia")!=string::npos;
bool atiCard= toLower(getGlVendor()).find("ati")!=string::npos;
bool shadowExtensions = isGlExtensionSupported("GL_ARB_shadow") && isGlExtensionSupported("GL_ARB_shadow_ambient");
//bool shadowExtensions = isGlExtensionSupported("GL_ARB_shadow") && isGlExtensionSupported("GL_ARB_shadow_ambient");
bool shadowExtensions = isGlExtensionSupported("GL_ARB_shadow");
//3D textures
config.setBool("Textures3D", isGlExtensionSupported("GL_EXT_texture3D"));
@@ -3349,7 +3357,7 @@ void Renderer::checkGlOptionalCaps() {
//shadow mapping
if(shadows == sShadowMapping) {
checkExtension("GL_ARB_shadow", "Shadow Mapping");
checkExtension("GL_ARB_shadow_ambient", "Shadow Mapping");
//checkExtension("GL_ARB_shadow_ambient", "Shadow Mapping");
//checkExtension("GL_ARB_depth_texture", "Shadow Mapping");
}
}

1
source/glest_game/main/main.cpp
View File

@@ -768,6 +768,7 @@ int glestMain(int argc, char** argv){
if(hasCommandArgument(argc, argv,GAME_ARGS[GAME_ARG_OPENGL_INFO]) == true) {
//Renderer &renderer= Renderer::getInstance();
printf("%s",renderer.getGlInfo().c_str());
printf("%s",renderer.getGlMoreInfo().c_str());
delete mainWindow;
return -1;

2
source/shared_lib/include/graphics/gl/texture_gl.h
View File

@@ -28,6 +28,8 @@ protected:
public:
GLuint getHandle() const {return handle;}
void OutputTextureDebugInfo(const Pixmap2D *pixmap,Texture::Format format, int components, const string path);
};
// =====================================================

76
source/shared_lib/sources/graphics/gl/texture_gl.cpp
View File

@@ -96,6 +96,44 @@ GLint toInternalFormatGl(Texture::Format format, int components){
}
}
GLint toCompressionFormatGl(GLint format) {
return format;
//GL_COMPRESSED_ALPHA <- white things but tile ok!
//GL_COMPRESSED_LUMINANCE <- black tiles
//GL_COMPRESSED_LUMINANCE_ALPHA <- black tiles
//GL_COMPRESSED_INTENSITY <- black tiles
//GL_COMPRESSED_RGB <- black tiles
//GL_COMPRESSED_RGBA <- black tiles
// With the following extension (GL_EXT_texture_compression_s3tc)
//GL_COMPRESSED_RGB_S3TC_DXT1_EXT
//GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
//GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
//GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
/*
switch(format) {
case GL_LUMINANCE:
case GL_LUMINANCE8:
return GL_COMPRESSED_LUMINANCE;
case GL_RGB:
case GL_RGB8:
//return GL_COMPRESSED_RGB;
return GL_COMPRESSED_RGB_S3TC_DXT1_EXT;
case GL_RGBA:
case GL_RGBA8:
//return GL_COMPRESSED_RGBA;
return GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
case GL_ALPHA:
case GL_ALPHA8:
return GL_COMPRESSED_ALPHA;
default:
return format;
}
*/
}
// =====================================================
// class Texture1DGl
// =====================================================
@@ -187,6 +225,7 @@ void Texture2DGl::init(Filter filter, int maxAnisotropy){
GLint wrap= toWrapModeGl(wrapMode);
GLint glFormat= toFormatGl(format, pixmap.getComponents());
GLint glInternalFormat= toInternalFormatGl(format, pixmap.getComponents());
GLint glCompressionFormat = toCompressionFormatGl(glInternalFormat);
//pixel init var
const uint8* pixels= pixmapInit? pixmap.getPixels(): NULL;
@@ -212,7 +251,7 @@ void Texture2DGl::init(Filter filter, int maxAnisotropy){
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
int error= gluBuild2DMipmaps(
GL_TEXTURE_2D, glInternalFormat,
GL_TEXTURE_2D, glCompressionFormat,
pixmap.getW(), pixmap.getH(),
glFormat, GL_UNSIGNED_BYTE, pixels);
@@ -229,10 +268,9 @@ void Texture2DGl::init(Filter filter, int maxAnisotropy){
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(
GL_TEXTURE_2D, 0, glInternalFormat,
GL_TEXTURE_2D, 0, glCompressionFormat,
pixmap.getW(), pixmap.getH(),
0, glFormat, GL_UNSIGNED_BYTE, pixels);
GLint error= glGetError();
//throw runtime_error("TEST!");
@@ -242,6 +280,8 @@ void Texture2DGl::init(Filter filter, int maxAnisotropy){
sprintf(szBuf,"Error creating texture 2D, returned: %d [%s] w = %d, h = %d, glInternalFormat = %d, glFormat = %d",error,pixmap.getPath().c_str(),pixmap.getW(),pixmap.getH(),glInternalFormat,glFormat);
throw runtime_error(szBuf);
}
OutputTextureDebugInfo(&pixmap,format, pixmap.getComponents(),getPath());
}
inited= true;
}
@@ -348,6 +388,7 @@ void TextureCubeGl::init(Filter filter, int maxAnisotropy){
GLint glFormat= toFormatGl(format, currentPixmap->getComponents());
GLint glInternalFormat= toInternalFormatGl(format, currentPixmap->getComponents());
GLint glCompressionFormat = toCompressionFormatGl(glInternalFormat);
//pixel init var
const uint8* pixels= pixmapInit? currentPixmap->getPixels(): NULL;
@@ -355,7 +396,7 @@ void TextureCubeGl::init(Filter filter, int maxAnisotropy){
if(mipmap){
int error= gluBuild2DMipmaps(
target, glInternalFormat,
target, glCompressionFormat,
currentPixmap->getW(), currentPixmap->getH(),
glFormat, GL_UNSIGNED_BYTE, pixels);
@@ -368,7 +409,7 @@ void TextureCubeGl::init(Filter filter, int maxAnisotropy){
}
else{
glTexImage2D(
target, 0, glInternalFormat,
target, 0, glCompressionFormat,
currentPixmap->getW(), currentPixmap->getH(),
0, glFormat, GL_UNSIGNED_BYTE, pixels);
}
@@ -380,6 +421,8 @@ void TextureCubeGl::init(Filter filter, int maxAnisotropy){
sprintf(szBuf,"Error creating texture cube, returned: %d [%s] w = %d, h = %d",error,currentPixmap->getPath().c_str(),currentPixmap->getW(),currentPixmap->getH());
throw runtime_error(szBuf);
}
OutputTextureDebugInfo(currentPixmap,format, currentPixmap->getComponents(),getPath());
}
inited= true;
@@ -396,4 +439,27 @@ void TextureCubeGl::end(){
}
}
void TextureGl::OutputTextureDebugInfo(const Pixmap2D *pixmap,Texture::Format format, int components,const string path) {
GLint glFormat= toFormatGl(format, components);
printf("**** Texture filename: [%s] format = %d components = %d, glFormat = %d, path [%s]\n",pixmap->getPath().c_str(),format,components,glFormat,path.c_str());
GLint compressed=0;
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_COMPRESSED, &compressed);
int error = glGetError();
printf("**** Texture compressed status: %d, error [%d]\n",compressed,error);
compressed=0;
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_COMPRESSED_IMAGE_SIZE, &compressed);
error = glGetError();
printf("**** Texture image size in video RAM: %d, error [%d]\n",compressed,error);
compressed=0;
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &compressed);
error = glGetError();
printf("**** Texture image compression format used: %d, error [%d]\n",compressed,error);
}
}}}//end namespace

5
source/shared_lib/sources/graphics/pixmap.cpp
View File

@@ -468,6 +468,8 @@ Pixmap2D::~Pixmap2D(){
}
Pixmap2D* Pixmap2D::loadPath(const string& path) {
printf("Loading Pixmap2D [%s]\n",path.c_str());
Pixmap2D *pixmap = FileReader<Pixmap2D>::readPath(path);
if(pixmap != NULL) {
pixmap->path = path;
@@ -476,11 +478,12 @@ Pixmap2D* Pixmap2D::loadPath(const string& path) {
}
void Pixmap2D::load(const string &path) {
//printf("Loading Pixmap2D [%s]\n",path.c_str());
FileReader<Pixmap2D>::readPath(path,this);
this->path = path;
}
void Pixmap2D::save(const string &path) {
string extension= path.substr(path.find_last_of('.')+1);
if(extension=="bmp"){