mirror of
https://github.com/AquariaOSE/Aquaria.git
synced 2024-12-25 06:05:45 +00:00
Fixed a shader related crash that occured if the following conditions were met:
- BBGE_BUILD_SHADERS defined - Blur enabled in config - Entering a "warplocalnode"-Node while taking damage These conditions caused it to enable shader related code while taking the screenshot for the warp transition, that caused a crash because the shader- related gl*() function pointers were not initialzed, because the current code never loads any shaders.
This commit is contained in:
fgenesis
parent
7ff0caaed8
commit
99375127e1
2 changed files with 113 additions and 81 deletions
188
BBGE/Shader.cpp
188
BBGE/Shader.cpp
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@ -40,6 +40,96 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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PFNGLUNIFORM1IARBPROC glUniform1iARB = NULL;
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#endif
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bool Shader::_wasInited = false;
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bool Shader::_useShaders = false;
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void Shader::staticInit()
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{
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if (_wasInited)
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return;
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_wasInited = true;
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debugLog("Initializing shaders...");
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#if defined(BBGE_BUILD_SHADERS) && defined(BBGE_BUILD_OPENGL)
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char *ext = (char*)glGetString( GL_EXTENSIONS );
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if( strstr( ext, "GL_ARB_shading_language_100" ) == NULL )
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{
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//This extension string indicates that the OpenGL Shading Language,
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// version 1.00, is supported.
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debugLog("GL_ARB_shading_language_100 extension was not found");
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/*
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MessageBox(NULL,"GL_ARB_shading_language_100 extension was not found",
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"ERROR",MB_OK|MB_ICONEXCLAMATION);
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*/
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goto end;
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}
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if( strstr( ext, "GL_ARB_shader_objects" ) == NULL )
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{
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debugLog("GL_ARB_shader_objects extension was not found");
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goto end;
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}
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else
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{
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#ifdef BBGE_BUILD_GLFW
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glCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC)glfwGetProcAddress("glCreateProgramObjectARB");
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glDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC)glfwGetProcAddress("glDeleteObjectARB");
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glUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC)glfwGetProcAddress("glUseProgramObjectARB");
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glCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC)glfwGetProcAddress("glCreateShaderObjectARB");
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glShaderSourceARB = (PFNGLSHADERSOURCEARBPROC)glfwGetProcAddress("glShaderSourceARB");
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glCompileShaderARB = (PFNGLCOMPILESHADERARBPROC)glfwGetProcAddress("glCompileShaderARB");
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glGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC)glfwGetProcAddress("glGetObjectParameterivARB");
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glAttachObjectARB = (PFNGLATTACHOBJECTARBPROC)glfwGetProcAddress("glAttachObjectARB");
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glGetInfoLogARB = (PFNGLGETINFOLOGARBPROC)glfwGetProcAddress("glGetInfoLogARB");
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glLinkProgramARB = (PFNGLLINKPROGRAMARBPROC)glfwGetProcAddress("glLinkProgramARB");
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glGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC)glfwGetProcAddress("glGetUniformLocationARB");
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glUniform4fARB = (PFNGLUNIFORM4FARBPROC)glfwGetProcAddress("glUniform4fARB");
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glUniform1iARB = (PFNGLUNIFORM1IARBPROC)glfwGetProcAddress("glUniform1iARB");
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#endif
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#ifdef BBGE_BUILD_SDL
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glCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC)SDL_GL_GetProcAddress("glCreateProgramObjectARB");
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glDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC)SDL_GL_GetProcAddress("glDeleteObjectARB");
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glUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC)SDL_GL_GetProcAddress("glUseProgramObjectARB");
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glCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC)SDL_GL_GetProcAddress("glCreateShaderObjectARB");
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glShaderSourceARB = (PFNGLSHADERSOURCEARBPROC)SDL_GL_GetProcAddress("glShaderSourceARB");
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glCompileShaderARB = (PFNGLCOMPILESHADERARBPROC)SDL_GL_GetProcAddress("glCompileShaderARB");
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glGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC)SDL_GL_GetProcAddress("glGetObjectParameterivARB");
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glAttachObjectARB = (PFNGLATTACHOBJECTARBPROC)SDL_GL_GetProcAddress("glAttachObjectARB");
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glGetInfoLogARB = (PFNGLGETINFOLOGARBPROC)SDL_GL_GetProcAddress("glGetInfoLogARB");
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glLinkProgramARB = (PFNGLLINKPROGRAMARBPROC)SDL_GL_GetProcAddress("glLinkProgramARB");
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glGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC)SDL_GL_GetProcAddress("glGetUniformLocationARB");
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glUniform4fARB = (PFNGLUNIFORM4FARBPROC)SDL_GL_GetProcAddress("glUniform4fARB");
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glUniform1iARB = (PFNGLUNIFORM1IARBPROC)SDL_GL_GetProcAddress("glUniform1iARB");
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#endif
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if( !glCreateProgramObjectARB || !glDeleteObjectARB || !glUseProgramObjectARB ||
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!glCreateShaderObjectARB || !glCreateShaderObjectARB || !glCompileShaderARB ||
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!glGetObjectParameterivARB || !glAttachObjectARB || !glGetInfoLogARB ||
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!glLinkProgramARB || !glGetUniformLocationARB || !glUniform4fARB ||
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!glUniform1iARB )
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{
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glCreateProgramObjectARB = 0;
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debugLog("One or more GL_ARB_shader_objects functions were not found");
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goto end;
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}
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}
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// everything fine when we are here
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_useShaders = true;
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#endif
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end:
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if (_useShaders)
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debugLog("Shader support enabled.");
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else
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debugLog("Shader support not enabled.");
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}
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Shader::Shader()
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{
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loaded = false;
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@ -58,6 +148,8 @@ Shader::Shader()
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Shader::~Shader()
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{
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#ifdef BBGE_BUILD_SHADERS
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if (!_useShaders)
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return;
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if (g_vertexShader)
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glDeleteObjectARB( g_vertexShader );
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if (g_fragmentShader)
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@ -132,6 +224,8 @@ void Shader::reload()
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void Shader::bind()
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{
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#ifdef BBGE_BUILD_SHADERS
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if (!_useShaders)
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return;
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glUseProgramObjectARB( g_programObj );
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if( g_location_texture != -1 )
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glUniform1iARB( g_location_texture, 0 );
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@ -145,15 +239,22 @@ void Shader::bind()
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void Shader::unbind()
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{
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#ifdef BBGE_BUILD_SHADERS
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if (!_useShaders)
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return;
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glUseProgramObjectARB( NULL );
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#endif
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}
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void Shader::load(const std::string &file, const std::string &fragFile)
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{
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debugLog("Shader::load("+file+", "+fragFile+")");
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staticInit();
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loaded = false;
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#ifdef BBGE_BUILD_SHADERS
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if(!_useShaders)
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return;
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debugLog("Shader::load("+file+", "+fragFile+")");
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g_location_texture = 0;
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g_location_mode = 0;
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@ -170,79 +271,6 @@ void Shader::load(const std::string &file, const std::string &fragFile)
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// functions that we wish to use...
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//
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debugLog("Shader::load 2");
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char *ext = (char*)glGetString( GL_EXTENSIONS );
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if( strstr( ext, "GL_ARB_shading_language_100" ) == NULL )
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{
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//This extension string indicates that the OpenGL Shading Language,
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// version 1.00, is supported.
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debugLog("GL_ARB_shading_language_100 extension was not found");
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/*
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MessageBox(NULL,"GL_ARB_shading_language_100 extension was not found",
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"ERROR",MB_OK|MB_ICONEXCLAMATION);
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*/
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return;
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}
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debugLog("Shader::load 3");
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if( strstr( ext, "GL_ARB_shader_objects" ) == NULL )
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{
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debugLog("GL_ARB_shader_objects extension was not found");
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return;
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}
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else
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{
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// only do this once if it works
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if (!glCreateProgramObjectARB)
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{
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#ifdef BBGE_BUILD_GLFW
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glCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC)glfwGetProcAddress("glCreateProgramObjectARB");
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glDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC)glfwGetProcAddress("glDeleteObjectARB");
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glUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC)glfwGetProcAddress("glUseProgramObjectARB");
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glCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC)glfwGetProcAddress("glCreateShaderObjectARB");
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glShaderSourceARB = (PFNGLSHADERSOURCEARBPROC)glfwGetProcAddress("glShaderSourceARB");
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glCompileShaderARB = (PFNGLCOMPILESHADERARBPROC)glfwGetProcAddress("glCompileShaderARB");
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glGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC)glfwGetProcAddress("glGetObjectParameterivARB");
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glAttachObjectARB = (PFNGLATTACHOBJECTARBPROC)glfwGetProcAddress("glAttachObjectARB");
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glGetInfoLogARB = (PFNGLGETINFOLOGARBPROC)glfwGetProcAddress("glGetInfoLogARB");
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glLinkProgramARB = (PFNGLLINKPROGRAMARBPROC)glfwGetProcAddress("glLinkProgramARB");
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glGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC)glfwGetProcAddress("glGetUniformLocationARB");
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glUniform4fARB = (PFNGLUNIFORM4FARBPROC)glfwGetProcAddress("glUniform4fARB");
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glUniform1iARB = (PFNGLUNIFORM1IARBPROC)glfwGetProcAddress("glUniform1iARB");
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#endif
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#ifdef BBGE_BUILD_SDL
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glCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC)SDL_GL_GetProcAddress("glCreateProgramObjectARB");
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glDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC)SDL_GL_GetProcAddress("glDeleteObjectARB");
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glUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC)SDL_GL_GetProcAddress("glUseProgramObjectARB");
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glCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC)SDL_GL_GetProcAddress("glCreateShaderObjectARB");
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glShaderSourceARB = (PFNGLSHADERSOURCEARBPROC)SDL_GL_GetProcAddress("glShaderSourceARB");
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glCompileShaderARB = (PFNGLCOMPILESHADERARBPROC)SDL_GL_GetProcAddress("glCompileShaderARB");
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glGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC)SDL_GL_GetProcAddress("glGetObjectParameterivARB");
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glAttachObjectARB = (PFNGLATTACHOBJECTARBPROC)SDL_GL_GetProcAddress("glAttachObjectARB");
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glGetInfoLogARB = (PFNGLGETINFOLOGARBPROC)SDL_GL_GetProcAddress("glGetInfoLogARB");
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glLinkProgramARB = (PFNGLLINKPROGRAMARBPROC)SDL_GL_GetProcAddress("glLinkProgramARB");
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glGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC)SDL_GL_GetProcAddress("glGetUniformLocationARB");
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glUniform4fARB = (PFNGLUNIFORM4FARBPROC)SDL_GL_GetProcAddress("glUniform4fARB");
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glUniform1iARB = (PFNGLUNIFORM1IARBPROC)SDL_GL_GetProcAddress("glUniform1iARB");
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#endif
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if( !glCreateProgramObjectARB || !glDeleteObjectARB || !glUseProgramObjectARB ||
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!glCreateShaderObjectARB || !glCreateShaderObjectARB || !glCompileShaderARB ||
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!glGetObjectParameterivARB || !glAttachObjectARB || !glGetInfoLogARB ||
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!glLinkProgramARB || !glGetUniformLocationARB || !glUniform4fARB ||
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!glUniform1iARB )
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{
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glCreateProgramObjectARB = 0;
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debugLog("One or more GL_ARB_shader_objects functions were not found");
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return;
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}
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}
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}
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debugLog("Shader::load 4");
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const char *vertexShaderStrings[1];
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const char *fragmentShaderStrings[1];
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GLint bVertCompiled;
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@ -254,7 +282,7 @@ void Shader::load(const std::string &file, const std::string &fragFile)
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// Create the vertex shader...
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//
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debugLog("Shader::load 5");
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debugLog("Shader::load 2");
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g_vertexShader = glCreateShaderObjectARB( GL_VERTEX_SHADER_ARB );
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@ -280,7 +308,7 @@ void Shader::load(const std::string &file, const std::string &fragFile)
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// Create the fragment shader...
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//
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debugLog("Shader::load 6");
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debugLog("Shader::load 3");
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g_fragmentShader = glCreateShaderObjectARB( GL_FRAGMENT_SHADER_ARB );
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@ -301,7 +329,7 @@ void Shader::load(const std::string &file, const std::string &fragFile)
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return;
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}
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debugLog("Shader::load 7");
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debugLog("Shader::load 4");
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//
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// Create a program object and attach the two compiled shaders...
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@ -326,7 +354,7 @@ void Shader::load(const std::string &file, const std::string &fragFile)
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glLinkProgramARB( g_programObj );
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glGetObjectParameterivARB( g_programObj, GL_OBJECT_LINK_STATUS_ARB, &bLinked );
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debugLog("Shader::load 8");
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debugLog("Shader::load 5");
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if( bLinked == false )
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{
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@ -341,13 +369,13 @@ void Shader::load(const std::string &file, const std::string &fragFile)
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// Locate some parameters by name so we can set them later...
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//
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debugLog("Shader::load 9");
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debugLog("Shader::load 6");
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g_location_texture = glGetUniformLocationARB( g_programObj, "tex" );
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g_location_mode = glGetUniformLocationARB( g_programObj, "mode" );
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g_location_value = glGetUniformLocationARB( g_programObj, "value" );
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debugLog("Shader::load 10");
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debugLog("Shader::load 7");
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loaded = true;
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}
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@ -47,4 +47,8 @@ protected:
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int mode;
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float vx, vy, vz, vw;
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bool loaded;
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static void staticInit();
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static bool _wasInited;
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static bool _useShaders;
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};
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