DEADSOFTWARE

glIsEnabled uses interanl structures, added glPushAttrib/glPopAttrib (not fully imple...
[nanogl.git] / nanoWrap.cpp
index 41eb4dda9ebacbbba3d3194bbb89ac8f3c115311..62e37ad3382b9be144ba24a03a1b5324629a60c9 100644 (file)
@@ -67,9 +67,8 @@ struct nanoState
        GLboolean scissor_test;
        GLboolean stencil_test;
        GLboolean depthmask;
-       GLboolean stupidglesbug;
-       GLclampf depth_range_near;
-       GLclampf depth_range_far;
+       GLclampd depth_range_near;
+       GLclampd depth_range_far;
        GLenum depth_func;
        GLenum cullface;
        GLenum shademodel;
@@ -114,7 +113,6 @@ static struct nanoState nanoglInitState =
         GL_FALSE,
         GL_FALSE,
         GL_TRUE,
-               GL_FALSE,
         0.0f,
         1.0f,
         GL_LESS,
@@ -180,7 +178,7 @@ static struct nanotmuState tmuInitState =
 
 static struct nanotmuState *activetmuState = &tmuState0;
 
-extern "C++" GlESInterface *glEsImpl;
+extern GlESInterface *glEsImpl;
 
 static GLenum wrapperPrimitiveMode = GL_QUADS;
 GLboolean useTexCoordArray         = GL_FALSE;
@@ -248,6 +246,64 @@ static GLboolean arraysValid = GL_FALSE;
 
 static GLboolean skipnanogl;
 
+#define STACK_ATTRIB_ENABLE_BIT_LEN (sizeof(stackAttribEnableBit) / sizeof(stackAttribEnableBit[0]))
+static const GLenum stackAttribEnableBit[] =
+{
+       GL_ALPHA_TEST,
+       GL_BLEND,
+       GL_CLIP_PLANE0,
+       GL_CLIP_PLANE1,
+       GL_CLIP_PLANE2,
+       GL_CLIP_PLANE3,
+       GL_CLIP_PLANE4,
+       GL_CLIP_PLANE5,
+       GL_COLOR_MATERIAL,
+       GL_CULL_FACE,
+       GL_DEPTH_TEST,
+       GL_DITHER,
+       GL_FOG,
+       GL_LIGHT0,
+       GL_LIGHT1,
+       GL_LIGHT2,
+       GL_LIGHT3,
+       GL_LIGHT4,
+       GL_LIGHT5,
+       GL_LIGHT6,
+       GL_LIGHT7,
+       GL_LIGHTING,
+       GL_LINE_SMOOTH,
+       GL_COLOR_LOGIC_OP,
+       GL_MULTISAMPLE,
+       GL_NORMALIZE,
+       GL_POINT_SMOOTH,
+       GL_POLYGON_OFFSET_LINE,
+       GL_POLYGON_OFFSET_FILL,
+       GL_POLYGON_OFFSET_POINT,
+       GL_POLYGON_SMOOTH,
+       GL_POLYGON_STIPPLE,
+       GL_SAMPLE_ALPHA_TO_COVERAGE,
+       GL_SAMPLE_ALPHA_TO_ONE,
+       GL_SAMPLE_COVERAGE,
+       GL_SCISSOR_TEST,
+       GL_STENCIL_TEST,
+       GL_TEXTURE_1D,
+       GL_TEXTURE_2D,
+       GL_TEXTURE_GEN_S,
+       GL_TEXTURE_GEN_T,
+       GL_TEXTURE_GEN_R,
+       GL_TEXTURE_GEN_Q,
+};
+
+#define MAX_ATTRIB_STACK 16
+struct attribStore
+{
+       GLbitfield mask;
+       GLboolean enable[STACK_ATTRIB_ENABLE_BIT_LEN];
+};
+
+static struct attribStore attribStack[MAX_ATTRIB_STACK];
+static int attribStackCount = 0;
+
 void InitGLStructs( )
 {
        ptrVertexAttribArray     = vertexattribs;
@@ -271,6 +327,9 @@ void InitGLStructs( )
        vertexMark           = 0;
        indexbase            = 0;
        arraysValid          = GL_FALSE;
+
+       memset(attribStack, 0, sizeof( struct attribStore ));
+       attribStackCount = 0;
 }
 
 void ResetNanoState( )
@@ -344,6 +403,9 @@ void ResetNanoState( )
 
        arraysValid = GL_FALSE;
        skipnanogl = GL_FALSE;
+
+       memset(attribStack, 0, sizeof( struct attribStore ));
+       attribStackCount = 0;
 }
 
 void FlushOnStateChange( )
@@ -791,12 +853,11 @@ void glEnable( GLenum cap )
        }
        case GL_STENCIL_TEST:
        {
-               return;
                if (!nanoglState.stencil_test)
-                {
-                nanoglState.stencil_test = GL_TRUE;
-                statechanged = GL_TRUE;
-                }
+               {
+                       nanoglState.stencil_test = GL_TRUE;
+                       statechanged = GL_TRUE;
+               }
                break;
        }
        case GL_TEXTURE_2D:
@@ -1097,12 +1158,11 @@ void glDisable( GLenum cap )
        }
        case GL_STENCIL_TEST:
        {
-               return;
                if (nanoglState.stencil_test)
-                {
-                nanoglState.stencil_test = GL_FALSE;
-                statechanged = GL_TRUE;
-                }
+               {
+                       nanoglState.stencil_test = GL_FALSE;
+                       statechanged = GL_TRUE;
+               }
                break;
        }
        case GL_TEXTURE_2D:
@@ -1185,23 +1245,14 @@ void glLoadIdentity( void )
 }
 
 void glColor4f( GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha )
-{      
-       if( nanoglState.stupidglesbug )
-       {
-               currentVertexAttrib.red = (unsigned char)ClampTo255( ( red * alpha ) * 255.0f );
-               currentVertexAttrib.green = (unsigned char)ClampTo255( ( green * alpha ) * 255.0f );
-               currentVertexAttrib.blue = (unsigned char)ClampTo255( ( blue * alpha ) * 255.0f );
-       }
-       else
-       {
-               currentVertexAttrib.red   = (unsigned char)ClampTo255( red * 255.0f );
-               currentVertexAttrib.green = (unsigned char)ClampTo255( green * 255.0f );
-               currentVertexAttrib.blue  = (unsigned char)ClampTo255( blue * 255.0f );
-       }
+{
+       currentVertexAttrib.red   = (unsigned char)ClampTo255( red * 255.0f );
+       currentVertexAttrib.green = (unsigned char)ClampTo255( green * 255.0f );
+       currentVertexAttrib.blue  = (unsigned char)ClampTo255( blue * 255.0f );
        currentVertexAttrib.alpha = (unsigned char)ClampTo255( alpha * 255.0f );
 }
 
-void glOrtho( GLfloat left, GLfloat right, GLfloat bottom, GLfloat top, GLfloat zNear, GLfloat zFar )
+void glOrtho( GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar )
 {
        FlushOnStateChange( );
 #ifdef USE_CORE_PROFILE
@@ -1290,9 +1341,27 @@ void glTexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
 
 void glTexImage2D( GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels )
 {
-       FlushOnStateChange( );
+       unsigned char *data = (unsigned char*)pixels;
+
+       if( pixels && internalformat == GL_RGB && format == GL_RGBA ) // strip alpha from texture
+       {
+               unsigned char *in = data, *out;
+               int i = 0, size = width * height * 4;
+
+               data = out = (unsigned char*)malloc( size );
+       
+               for( i = 0; i < size; i += 4, in += 4, out += 4 )
+               {
+                       memcpy( out, in, 3 );
+                       out[3] = 255;
+               }
+       }
+               
        internalformat = format;
-       glEsImpl->glTexImage2D( target, level, internalformat, width, height, border, format, type, pixels );
+       glEsImpl->glTexImage2D( target, level, internalformat, width, height, border, format, type, data );
+
+       if( data != pixels )
+               free(data);
 }
 
 void glDrawBuffer( GLenum /*mode*/ )
@@ -1317,7 +1386,7 @@ void glScalef( GLfloat x, GLfloat y, GLfloat z )
        glEsImpl->glScalef( x, y, z );
 }
 
-void glDepthRange( GLclampf zNear, GLclampf zFar )
+void glDepthRange( GLclampd zNear, GLclampd zFar )
 {
        if ( ( nanoglState.depth_range_near == zNear ) && ( nanoglState.depth_range_far == zFar ) )
        {
@@ -1376,7 +1445,7 @@ void glCullFace( GLenum mode )
        glEsImpl->glCullFace( mode );
 }
 
-void glFrustum( GLfloat left, GLfloat right, GLfloat bottom, GLfloat top, GLfloat zNear, GLfloat zFar )
+void glFrustum( GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar )
 {
        FlushOnStateChange( );
        glEsImpl->glFrustumf( left, right, bottom, top, zNear, zFar );
@@ -1402,19 +1471,10 @@ void glVertex3f( GLfloat x, GLfloat y, GLfloat z )
 }
 
 void glColor4fv( const GLfloat *v )
-{      
-       if( nanoglState.stupidglesbug )
-       {
-               currentVertexAttrib.red = (unsigned char)ClampTo255( ( v[0] * v[3] ) * 255.0f );
-               currentVertexAttrib.green = (unsigned char)ClampTo255( ( v[1] * v[3] ) * 255.0f );
-               currentVertexAttrib.blue = (unsigned char)ClampTo255( ( v[2] * v[3] ) * 255.0f );
-       }
-       else
-       {
-               currentVertexAttrib.red   = (unsigned char)ClampTo255( v[0] * 255.0f );
-               currentVertexAttrib.green = (unsigned char)ClampTo255( v[1] * 255.0f );
-               currentVertexAttrib.blue  = (unsigned char)ClampTo255( v[2] * 255.0f );
-       }
+{
+       currentVertexAttrib.red   = (unsigned char)ClampTo255( v[0] * 255.0f );
+       currentVertexAttrib.green = (unsigned char)ClampTo255( v[1] * 255.0f );
+       currentVertexAttrib.blue  = (unsigned char)ClampTo255( v[2] * 255.0f );
        currentVertexAttrib.alpha = (unsigned char)ClampTo255( v[3] * 255.0f );
        if( skipnanogl )
                glEsImpl->glColor4f( currentVertexAttrib.red/255.0f, currentVertexAttrib.green/255.0f,
@@ -1435,18 +1495,9 @@ void glColor3ubv( const GLubyte *v )
 void glColor4ubv( const GLubyte *v )
 {
        //*((unsigned int*)(&currentVertexAttrib.red)) = *((unsigned int*)(v));
-       if( nanoglState.stupidglesbug )
-       {
-               currentVertexAttrib.red   = (unsigned char)ClampTo255( v[0] * v[3] / 255.0f );
-               currentVertexAttrib.green = (unsigned char)ClampTo255( v[1] * v[3] / 255.0f );
-               currentVertexAttrib.blue  = (unsigned char)ClampTo255( v[2] * v[3] / 255.0f );
-       }
-       else
-       {
-               currentVertexAttrib.red   = v[0];
-               currentVertexAttrib.green = v[1];
-               currentVertexAttrib.blue  = v[2];
-       }
+       currentVertexAttrib.red   = v[0];
+       currentVertexAttrib.green = v[1];
+       currentVertexAttrib.blue  = v[2];
        currentVertexAttrib.alpha = v[3];
        if( skipnanogl )
                glEsImpl->glColor4f( currentVertexAttrib.red/255.0f, currentVertexAttrib.green/255.0f,
@@ -1468,18 +1519,9 @@ void glColor3fv( const GLfloat *v )
 
 void glColor4ub( GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha )
 {
-       if( nanoglState.stupidglesbug )
-       {
-               currentVertexAttrib.red   = (unsigned char)ClampTo255( red   * alpha / 255.0f );
-               currentVertexAttrib.green = (unsigned char)ClampTo255( green * alpha / 255.0f );
-               currentVertexAttrib.blue  = (unsigned char)ClampTo255( blue  * alpha / 255.0f );
-       }
-       else
-       {
-               currentVertexAttrib.red   = red;
-               currentVertexAttrib.green = green;
-               currentVertexAttrib.blue  = blue;
-       }
+       currentVertexAttrib.red   = red;
+       currentVertexAttrib.green = green;
+       currentVertexAttrib.blue  = blue;
        currentVertexAttrib.alpha = alpha;
        if( skipnanogl )
                glEsImpl->glColor4f( currentVertexAttrib.red/255.0f, currentVertexAttrib.green/255.0f,
@@ -1573,15 +1615,7 @@ void glBlendFunc( GLenum sfactor, GLenum dfactor )
        {
                return;
        }
-       
-       if( sfactor == GL_SRC_ALPHA && dfactor == GL_ONE ) 
-       {
-               sfactor = GL_ONE; // workaround gles bug
-               nanoglState.stupidglesbug = GL_TRUE;
-       }
-       else
-               nanoglState.stupidglesbug = GL_FALSE;
-       
+
        nanoglState.sfactor = sfactor;
        nanoglState.dfactor = dfactor;
        FlushOnStateChange( );
@@ -1785,6 +1819,37 @@ void glActiveTexture( GLenum texture )
        activetmu = texture;
 }
 
+void glActiveTextureARB( GLenum texture )
+{
+       if( skipnanogl )
+       {
+               glEsImpl->glActiveTexture( texture );
+               return;
+       }
+       if ( activetmu == texture )
+       {
+               return;
+       }
+       if ( delayedttmuchange )
+       {
+               delayedttmuchange = GL_FALSE;
+       }
+       else
+       {
+               delayedttmuchange = GL_TRUE;
+               delayedtmutarget  = texture;
+       }
+       if ( texture == GL_TEXTURE0 )
+       {
+               activetmuState = &tmuState0;
+       }
+       else
+       {
+               activetmuState = &tmuState1;
+       }
+       activetmu = texture;
+}
+
 void glClientActiveTexture( GLenum texture )
 {
        if( skipnanogl )
@@ -1794,6 +1859,16 @@ void glClientActiveTexture( GLenum texture )
        }
        clientactivetmu = texture;
 }
+void glClientActiveTextureARB( GLenum texture )
+{
+       if( skipnanogl )
+       {
+               glEsImpl->glClientActiveTexture( texture );
+               return;
+       }
+       clientactivetmu = texture;
+}
+
 
 void glPolygonMode( GLenum face, GLenum mode )
 {
@@ -1805,7 +1880,7 @@ void glDeleteTextures( GLsizei n, const GLuint *textures )
        glEsImpl->glDeleteTextures( n, textures );
 }
 
-void glClearDepth( GLclampf depth )
+void glClearDepth( GLclampd depth )
 {
        FlushOnStateChange( );
        glEsImpl->glClearDepthf( depth );
@@ -1845,12 +1920,18 @@ void glCallList( GLuint list )
 }
 void glColorMask( GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha )
 {
+       FlushOnStateChange( );
+       glEsImpl->glColorMask( red, green, blue, alpha );       
 }
 void glStencilFunc( GLenum func, GLint ref, GLuint mask )
 {
+       FlushOnStateChange( );
+       glEsImpl->glStencilFunc( func, ref, mask );     
 }
 void glStencilOp( GLenum fail, GLenum zfail, GLenum zpass )
 {
+       FlushOnStateChange( );
+       glEsImpl->glStencilOp( fail, zfail, zpass );
 }
 
 struct ptrstate vertex_array;
@@ -1900,6 +1981,9 @@ void glDrawElements( GLenum mode, GLsizei count, GLenum type, const GLvoid *indi
                else
                {
                        glEsImpl->glDisableClientState( GL_COLOR_ARRAY );
+                       glEsImpl->glColor4f( currentVertexAttrib.red/255.0f, currentVertexAttrib.green/255.0f,
+                                       currentVertexAttrib.blue/255.0f, currentVertexAttrib.alpha/255.0f );
+
                }
                glEsImpl->glColorPointer( tmuState0.color_array.size,
                                          tmuState0.color_array.type,
@@ -2176,9 +2260,13 @@ void glPolygonOffset( GLfloat factor, GLfloat units )
 }
 void glStencilMask( GLuint mask )
 {
+       FlushOnStateChange( );
+       glEsImpl->glStencilMask( mask );
 }
 void glClearStencil( GLint s )
 {
+       FlushOnStateChange( );
+       glEsImpl->glClearStencil( s );
 }
 
 #if defined( __MULTITEXTURE_SUPPORT__ )
@@ -2217,6 +2305,12 @@ void glPixelStorei( GLenum pname, GLint param )
        glEsImpl->glPixelStorei( pname, param );
 }
 
+void glFogi( GLenum pname, GLint param )
+{
+       FlushOnStateChange( );
+       glEsImpl->glFogf( pname, param );
+}
+
 void glFogf( GLenum pname, GLfloat param )
 {
        FlushOnStateChange( );
@@ -2366,6 +2460,9 @@ void glDrawArrays( GLenum mode, GLint first, GLsizei count )
                else
                {
                        glEsImpl->glDisableClientState( GL_COLOR_ARRAY );
+                       glEsImpl->glColor4f( currentVertexAttrib.red/255.0f, currentVertexAttrib.green/255.0f,
+                                       currentVertexAttrib.blue/255.0f, currentVertexAttrib.alpha/255.0f );
+
                }
                glEsImpl->glColorPointer( tmuState0.color_array.size,
                                          tmuState0.color_array.type,
@@ -2527,4 +2624,147 @@ void glBufferDataARB( GLuint target, GLuint size, void *buffer, GLuint type )
 void glBufferSubDataARB( GLuint target, GLsizei offset, GLsizei size, void *buffer )
 {
        glEsImpl->glBufferSubData( target, offset, size, buffer );
-}
\ No newline at end of file
+}
+
+GLboolean glIsEnabled(GLenum cap)
+{
+       FlushOnStateChange( );
+
+       if( skipnanogl )
+       {
+               return glEsImpl->glIsEnabled(cap);
+       }
+
+       switch ( cap )
+       {
+       case GL_ALPHA_TEST:
+               return nanoglState.alpha_test;
+       case GL_BLEND:
+               return nanoglState.blend;
+       case GL_COLOR_LOGIC_OP:
+               return nanoglState.color_logic_op;
+       case GL_COLOR_MATERIAL:
+               return nanoglState.color_material;
+       case GL_CULL_FACE:
+               return nanoglState.cull_face;
+       case GL_DEPTH_TEST:
+               return nanoglState.depth_test;
+       case GL_DITHER:
+               return nanoglState.dither;
+       case GL_FOG:
+               return nanoglState.fog;
+       case GL_LIGHT0:
+               return nanoglState.light0;
+       case GL_LIGHT1:
+               return nanoglState.light1;
+       case GL_LIGHT2:
+               return nanoglState.light2;
+       case GL_LIGHT3:
+               return nanoglState.light3;
+       case GL_LIGHT4:
+               return nanoglState.light4;
+       case GL_LIGHT5:
+               return nanoglState.light5;
+       case GL_LIGHT6:
+               return nanoglState.light6;
+       case GL_LIGHT7:
+               return nanoglState.light7;
+       case GL_LIGHTING:
+               return nanoglState.lighting;
+       case GL_LINE_SMOOTH:
+               return nanoglState.line_smooth;
+       case GL_MULTISAMPLE:
+               return nanoglState.multisample;
+       case GL_NORMALIZE:
+               return nanoglState.normalize;
+       case GL_POLYGON_OFFSET_FILL:
+               return nanoglState.polygon_offset_fill;
+       case GL_RESCALE_NORMAL:
+               return nanoglState.rescale_normal;
+       case GL_SAMPLE_ALPHA_TO_COVERAGE:
+               return nanoglState.sample_alpha_to_coverage;
+       case GL_SAMPLE_ALPHA_TO_ONE:
+               return nanoglState.sample_alpha_to_one;
+       case GL_SAMPLE_COVERAGE:
+               return nanoglState.sample_coverage;
+       case GL_SCISSOR_TEST:
+               return nanoglState.scissor_test;
+       case GL_STENCIL_TEST:
+               return nanoglState.stencil_test;
+       case GL_TEXTURE_2D:
+               return activetmuState->texture_2d.value;
+       default:
+               return glIsEnabled(cap);
+       }
+}
+
+void glPushAttrib(GLbitfield mask)
+{
+       FlushOnStateChange( );
+
+       if( (attribStackCount < 0) || (attribStackCount > MAX_ATTRIB_STACK) )
+       {
+               return;
+       }
+
+       attribStack[attribStackCount].mask = mask;
+
+       if( mask & GL_ENABLE_BIT )
+       {
+               for(int i = 0; i < STACK_ATTRIB_ENABLE_BIT_LEN; i++)
+               {
+                       attribStack[attribStackCount].enable[i] = glIsEnabled(stackAttribEnableBit[i]);
+               }
+       }
+
+       if( mask & GL_COLOR_BUFFER_BIT )
+       {
+               // TODO
+       }
+
+       if( mask & GL_CURRENT_BIT )
+       {
+               // TODO
+       }
+
+       attribStackCount += 1;
+}
+
+void glPopAttrib()
+{
+       FlushOnStateChange( );
+
+       attribStackCount -= 1;
+       if((attribStackCount < 0) || (attribStackCount > MAX_ATTRIB_STACK))
+       {
+               attribStackCount += 1;
+               return;
+       }
+       
+       GLbitfield mask = attribStack[attribStackCount].mask;
+
+       if( mask & GL_ENABLE_BIT )
+       {
+               for(int i = 0; i < STACK_ATTRIB_ENABLE_BIT_LEN; i++)
+               {
+                       if( attribStack[attribStackCount].enable[i] )
+                       {
+                               glEnable(stackAttribEnableBit[i]);
+                       }
+                       else
+                       {
+                               glDisable(stackAttribEnableBit[i]);
+                       }
+               }
+       }
+
+       if( mask & GL_COLOR_BUFFER_BIT )
+       {
+               // TODO
+       }
+
+       if( mask & GL_CURRENT_BIT )
+       {
+               // TODO
+       }
+}