Improve logging and OS X support (jmarsh).
Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@4322
This commit is contained in:
Peter Veenstra
parent
c765582c3e
commit
5fc132c124
1 changed files with 57 additions and 35 deletions
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@ -93,8 +93,9 @@ PFNGLBUFFERDATAARBPROC glBufferDataARB = NULL;
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PFNGLMAPBUFFERARBPROC glMapBufferARB = NULL;
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PFNGLUNMAPBUFFERARBPROC glUnmapBufferARB = NULL;
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#ifndef GL_VERSION_2_0
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#define GL_VERSION_2_0 1
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/* Don't guard these with GL_VERSION_2_0 - Apple defines it but not these typedefs.
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* If they're already defined they should match these definitions, so no conflicts.
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*/
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typedef void (APIENTRYP PFNGLATTACHSHADERPROC) (GLuint program, GLuint shader);
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typedef void (APIENTRYP PFNGLCOMPILESHADERPROC) (GLuint shader);
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typedef GLuint (APIENTRYP PFNGLCREATEPROGRAMPROC) (void);
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@ -109,13 +110,18 @@ typedef void (APIENTRYP PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLin
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typedef void (APIENTRYP PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
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typedef GLint (APIENTRYP PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const GLchar *name);
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typedef void (APIENTRYP PFNGLLINKPROGRAMPROC) (GLuint program);
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typedef void (APIENTRYP PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);
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typedef void (APIENTRYP PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar **string, const GLint *length);
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typedef void (APIENTRYP PFNGLUNIFORM2FPROC) (GLint location, GLfloat v0, GLfloat v1);
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typedef void (APIENTRYP PFNGLUNIFORM1IPROC) (GLint location, GLint v0);
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typedef void (APIENTRYP PFNGLUSEPROGRAMPROC) (GLuint program);
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typedef void (APIENTRYP PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
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#endif
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/* Apple defines these functions in their GL header (as core functions)
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* so we can't use their names as function pointers. We can't link
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* directly as some platforms may not have them. So they get their own
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* namespace here to keep the official names but avoid collisions.
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*/
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namespace gl2 {
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PFNGLATTACHSHADERPROC glAttachShader = NULL;
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PFNGLCOMPILESHADERPROC glCompileShader = NULL;
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PFNGLCREATEPROGRAMPROC glCreateProgram = NULL;
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@ -135,10 +141,30 @@ PFNGLUNIFORM2FPROC glUniform2f = NULL;
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PFNGLUNIFORM1IPROC glUniform1i = NULL;
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PFNGLUSEPROGRAMPROC glUseProgram = NULL;
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PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer = NULL;
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}
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#ifndef GL_SHADER_COMPILER
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#define GL_SHADER_COMPILER 0x8DFA
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#endif
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/* "using" is meant to hide identical names declared in outer scope
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* but is unreliable, so just redefine instead.
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*/
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#define glAttachShader gl2::glAttachShader
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#define glCompileShader gl2::glCompileShader
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#define glCreateProgram gl2::glCreateProgram
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#define glCreateShader gl2::glCreateShader
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#define glDeleteProgram gl2::glDeleteProgram
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#define glDeleteShader gl2::glDeleteShader
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#define glEnableVertexAttribArray gl2::glEnableVertexAttribArray
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#define glGetAttribLocation gl2::glGetAttribLocation
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#define glGetProgramiv gl2::glGetProgramiv
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#define glGetProgramInfoLog gl2::glGetProgramInfoLog
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#define glGetShaderiv gl2::glGetShaderiv
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#define glGetShaderInfoLog gl2::glGetShaderInfoLog
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#define glGetUniformLocation gl2::glGetUniformLocation
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#define glLinkProgram gl2::glLinkProgram
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#define glShaderSource gl2::glShaderSource
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#define glUniform2f gl2::glUniform2f
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#define glUniform1i gl2::glUniform1i
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#define glUseProgram gl2::glUseProgram
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#define glVertexAttribPointer gl2::glVertexAttribPointer
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#endif //C_OPENGL
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@ -699,18 +725,16 @@ static GLuint BuildShader ( GLenum type, const char *shaderSrc ) {
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glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled);
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if (!compiled) {
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char* infoLog = NULL;
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GLint infoLen = 0;
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glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &infoLen);
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if (infoLen>1) {
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char* infoLog = (char*)malloc(infoLen);
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if (infoLog==NULL) LOG_MSG("Error getting shader compilation log");
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else {
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glGetShaderInfoLog(shader, infoLen, NULL, infoLog);
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LOG_MSG("Error compiling shader: %s", infoLog);
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free(infoLog);
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}
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}
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if (infoLen>1) infoLog = (char*)malloc(infoLen);
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if (infoLog) {
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glGetShaderInfoLog(shader, infoLen, NULL, infoLog);
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LOG_MSG("Error compiling shader: %s", infoLog);
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free(infoLog);
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} else LOG_MSG("Error getting shader compilation log");
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glDeleteShader(shader);
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return 0;
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@ -718,7 +742,7 @@ static GLuint BuildShader ( GLenum type, const char *shaderSrc ) {
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return shader;
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}
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static bool GFX_LoadGLShaders(const char *src, GLuint *vertex, GLuint *fragment) {
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static bool LoadGLShaders(const char *src, GLuint *vertex, GLuint *fragment) {
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GLuint s = BuildShader(GL_VERTEX_SHADER, src);
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if (s) {
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*vertex = s;
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@ -918,14 +942,14 @@ dosurface:
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}
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if (sdl.opengl.use_shader) {
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GLboolean t;
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// confirm current context supports shaders
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glGetBooleanv(GL_SHADER_COMPILER, &t);
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if (t) {
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GLuint prog=0;
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// reset error
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glGetError();
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glGetIntegerv(GL_CURRENT_PROGRAM, (GLint*)&prog);
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// if there was an error this context doesn't support shaders
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if (glGetError()==GL_NO_ERROR && (sdl.opengl.program_object==0 || prog!=sdl.opengl.program_object)) {
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// check if existing program is valid
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if (sdl.opengl.program_object) {
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// reset error
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glGetError();
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glUseProgram(sdl.opengl.program_object);
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if (glGetError() != GL_NO_ERROR) {
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// program is not usable (probably new context), purge it
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@ -938,11 +962,11 @@ dosurface:
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if (sdl.opengl.program_object == 0) {
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GLuint vertexShader, fragmentShader;
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const char *src = sdl.opengl.shader_src;
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if (src && !GFX_LoadGLShaders(src, &vertexShader, &fragmentShader)) {
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if (src && !LoadGLShaders(src, &vertexShader, &fragmentShader)) {
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LOG_MSG("SDL:OPENGL:Failed to compile shader, falling back to default");
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src = NULL;
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}
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if (src == NULL && !GFX_LoadGLShaders(shader_src_default, &vertexShader, &fragmentShader)) {
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if (src == NULL && !LoadGLShaders(shader_src_default, &vertexShader, &fragmentShader)) {
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LOG_MSG("SDL:OPENGL:Failed to compile default shader!");
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goto dosurface;
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}
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@ -966,18 +990,16 @@ dosurface:
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GLint isProgramLinked;
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glGetProgramiv(sdl.opengl.program_object, GL_LINK_STATUS, &isProgramLinked);
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if (!isProgramLinked) {
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char * infoLog = NULL;
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GLint infoLen = 0;
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glGetProgramiv(sdl.opengl.program_object, GL_INFO_LOG_LENGTH, &infoLen);
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if (infoLen>1) {
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char *infoLog = (char*)malloc(infoLen);
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if (infoLog==NULL) LOG_MSG("SDL:OPENGL:Failed to retrieve program link log");
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else {
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glGetProgramInfoLog(sdl.opengl.program_object, infoLen, NULL, infoLog);
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LOG_MSG("SDL:OPENGL:Error linking program:\n %s", infoLog);
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free(infoLog);
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}
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}
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if (infoLen>1) infoLog = (char*)malloc(infoLen);
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if (infoLog) {
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glGetProgramInfoLog(sdl.opengl.program_object, infoLen, NULL, infoLog);
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LOG_MSG("SDL:OPENGL:Error linking program:\n %s", infoLog);
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free(infoLog);
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} else LOG_MSG("SDL:OPENGL:Failed to retrieve program link log");
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glDeleteProgram(sdl.opengl.program_object);
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sdl.opengl.program_object = 0;
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@ -1100,7 +1122,7 @@ dosurface:
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if (sdl.opengl.pixel_buffer_object)
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retFlags |= GFX_HARDWARE;
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break;
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}//OPENGL
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}//OPENGL
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#endif //C_OPENGL
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default:
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goto dosurface;
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