From: DeaDDooMER Date: Thu, 27 Jan 2022 20:04:18 +0000 (+0300) Subject: render: disable FBO on devices which not support NPOT textures X-Git-Url: http://deadsoftware.ru/gitweb?a=commitdiff_plain;h=e93442c2367bd3658f31ceb2156a0b4809b21e38;p=d2df-sdl.git render: disable FBO on devices which not support NPOT textures --- diff --git a/src/game/opengl/r_render.pas b/src/game/opengl/r_render.pas index cfc2a0d..1773ba7 100644 --- a/src/game/opengl/r_render.pas +++ b/src/game/opengl/r_render.pas @@ -63,24 +63,113 @@ implementation var LoadedGL: Boolean = false; + function GLExtensionList (): SSArray; + var s: PChar; i, j, num: GLint; + begin + result := nil; + s := glGetString(GL_EXTENSIONS); + if s <> nil then + begin + num := 0; + i := 0; + j := 0; + while (s[i] <> #0) and (s[i] = ' ') do Inc(i); + while (s[i] <> #0) do + begin + while (s[i] <> #0) and (s[i] <> ' ') do Inc(i); + SetLength(result, num+1); + result[num] := Copy(s, j+1, i-j); + while (s[i] <> #0) and (s[i] = ' ') do Inc(i); + j := i; + Inc(num) + end + end + end; + + function GLExtensionSupported (ext: AnsiString): Boolean; + var e: AnsiString; + begin + {$IFDEF NOGL_INIT} + Result := nogl_ExtensionSupported(ext); + {$ELSE} + result := false; + for e in GLExtensionList() do + begin + if strEquCI1251(e, ext) then + begin + result := true; + exit + end + end + {$ENDIF} + end; + + function HaveNPOTSupport (): Boolean; + begin + Result := GLExtensionSupported('GL_ARB_texture_non_power_of_two') or + GLExtensionSupported('GL_OES_texture_npot') + end; + + function HaveFBOSupport (): Boolean; + begin + Result := GLExtensionSupported('GL_ARB_framebuffer_object') or + GLExtensionSupported('GL_OES_framebuffer_object') + end; + + procedure PrintGLSupportedExtensions; + begin + e_LogWritefln('GL Vendor: %s', [glGetString(GL_VENDOR)]); + e_LogWritefln('GL Renderer: %s', [glGetString(GL_RENDERER)]); + e_LogWritefln('GL Version: %s', [glGetString(GL_VERSION)]); + e_LogWritefln('GL Shaders: %s', [glGetString(GL_SHADING_LANGUAGE_VERSION)]); + e_LogWritefln('GL Extensions: %s', [glGetString(GL_EXTENSIONS)]); + end; + + procedure r_Window_Initialize; + begin +{$IFNDEF USE_SYSSTUB} + PrintGLSupportedExtensions; + glLegacyNPOT := not HaveNPOTSupport(); +{$ELSE} + glLegacyNPOT := False; + glRenderToFBO := False; +{$ENDIF} + if glNPOTOverride and glLegacyNPOT then + begin + glLegacyNPOT := true; + e_logWriteln('NPOT texture emulation: FORCED') + end + else + begin + if glLegacyNPOT then + e_logWriteln('NPOT texture emulation: enabled') + else + e_logWriteln('NPOT texture emulation: disabled') + end + end; + procedure LoadGL; + var fboload: Boolean; begin if LoadedGL = false then begin {$IFDEF NOGL_INIT} nogl_Init; - if glRenderToFBO and (not nogl_ExtensionSupported('GL_OES_framebuffer_object')) then - begin - e_LogWriteln('GL: framebuffer objects not supported; disabling FBO rendering'); - glRenderToFBO := false - end; - {$ELSE} - if glRenderToFBO and (not Load_GL_ARB_framebuffer_object) then + {$ENDIF} + if glRenderToFBO then + begin + fboload := True; + {$IFDEF NOGL_INIT} + fboload := True; // !!! but if not? + {$ELSE} + fboload := Load_GL_ARB_framebuffer_object(); + {$ENDIF} + if (fboload = False) or (HaveFBOSupport() = False) or (HaveNPOTSupport() = False) then begin e_LogWriteln('GL: framebuffer objects not supported; disabling FBO rendering'); glRenderToFBO := false end; - {$ENDIF} + end; LoadedGL := true end end; diff --git a/src/game/opengl/r_window.pas b/src/game/opengl/r_window.pas index a35aaef..9b7100f 100644 --- a/src/game/opengl/r_window.pas +++ b/src/game/opengl/r_window.pas @@ -18,7 +18,6 @@ unit r_window; interface procedure r_Window_DrawLoading (forceUpdate: Boolean); - procedure r_Window_Initialize; implementation @@ -68,73 +67,4 @@ implementation end; end; - function GLExtensionList (): SSArray; - var s: PChar; i, j, num: GLint; - begin - result := nil; - s := glGetString(GL_EXTENSIONS); - if s <> nil then - begin - num := 0; - i := 0; - j := 0; - while (s[i] <> #0) and (s[i] = ' ') do Inc(i); - while (s[i] <> #0) do - begin - while (s[i] <> #0) and (s[i] <> ' ') do Inc(i); - SetLength(result, num+1); - result[num] := Copy(s, j+1, i-j); - while (s[i] <> #0) and (s[i] = ' ') do Inc(i); - j := i; - Inc(num) - end - end - end; - - function GLExtensionSupported (ext: AnsiString): Boolean; - var e: AnsiString; - begin - result := false; - for e in GLExtensionList() do - begin - if strEquCI1251(e, ext) then - begin - result := true; - exit - end - end - end; - - procedure PrintGLSupportedExtensions; - begin - e_LogWritefln('GL Vendor: %s', [glGetString(GL_VENDOR)]); - e_LogWritefln('GL Renderer: %s', [glGetString(GL_RENDERER)]); - e_LogWritefln('GL Version: %s', [glGetString(GL_VERSION)]); - e_LogWritefln('GL Shaders: %s', [glGetString(GL_SHADING_LANGUAGE_VERSION)]); - e_LogWritefln('GL Extensions: %s', [glGetString(GL_EXTENSIONS)]); - end; - - procedure r_Window_Initialize; - begin -{$IFNDEF USE_SYSSTUB} - PrintGLSupportedExtensions; - glLegacyNPOT := not (GLExtensionSupported('GL_ARB_texture_non_power_of_two') or GLExtensionSupported('GL_OES_texture_npot')); -{$ELSE} - glLegacyNPOT := False; - glRenderToFBO := False; -{$ENDIF} - if glNPOTOverride and glLegacyNPOT then - begin - glLegacyNPOT := true; - e_logWriteln('NPOT texture emulation: FORCED') - end - else - begin - if glLegacyNPOT then - e_logWriteln('NPOT texture emulation: enabled') - else - e_logWriteln('NPOT texture emulation: disabled') - end - end; - end.