glview.cpp

Mesa is an open-source implementation of the OpenGL specification - a system for rendering interacti

}


void MesaDriver::WriteCI32SpanFront( const GLcontext *ctx, GLuint n, GLint x, GLint y,
                             const GLuint index[], const GLubyte mask[] )
{
 	printf("WriteCI32SpanFront() not implemented yet!\n");
   // TODO
}

void MesaDriver::WriteCI8SpanFront( const GLcontext *ctx, GLuint n, GLint x, GLint y,
                            const GLubyte index[], const GLubyte mask[] )
{
 	printf("WriteCI8SpanFront() not implemented yet!\n");
   // TODO
}

void MesaDriver::WriteMonoCISpanFront( const GLcontext *ctx, GLuint n,
                                    GLint x, GLint y,
                                    GLuint colorIndex, const GLubyte mask[] )
{
 	printf("WriteMonoCISpanFront() not implemented yet!\n");
   // TODO
}


void MesaDriver::WriteCI32PixelsFront( const GLcontext *ctx, GLuint n,
                                    const GLint x[], const GLint y[],
                                    const GLuint index[], const GLubyte mask[] )
{
 	printf("WriteCI32PixelsFront() not implemented yet!\n");
   // TODO
}

void MesaDriver::WriteMonoCIPixelsFront( const GLcontext *ctx, GLuint n,
                                      const GLint x[], const GLint y[],
                                      GLuint colorIndex, const GLubyte mask[] )
{
 	printf("WriteMonoCIPixelsFront() not implemented yet!\n");
   // TODO
}


void MesaDriver::ReadCI32SpanFront( const GLcontext *ctx,
                                 GLuint n, GLint x, GLint y, GLuint index[] )
{
 	printf("ReadCI32SpanFront() not implemented yet!\n");
  // TODO
}


void MesaDriver::ReadRGBASpanFront( const GLcontext *ctx, GLuint n,
                                 GLint x, GLint y, GLubyte rgba[][4] )
{
 	printf("ReadRGBASpanFront() not implemented yet!\n");
   // TODO
}


void MesaDriver::ReadCI32PixelsFront( const GLcontext *ctx,
                                   GLuint n, const GLint x[], const GLint y[],
                                   GLuint indx[], const GLubyte mask[] )
{
 	printf("ReadCI32PixelsFront() not implemented yet!\n");
   // TODO
}


void MesaDriver::ReadRGBAPixelsFront( const GLcontext *ctx,
                                   GLuint n, const GLint x[], const GLint y[],
                                   GLubyte rgba[][4], const GLubyte mask[] )
{
 	printf("ReadRGBAPixelsFront() not implemented yet!\n");
   // TODO
}




void MesaDriver::WriteRGBASpanBack(const GLcontext *ctx, GLuint n,
                                 GLint x, GLint y,
                                 CONST GLubyte rgba[][4],
                                 const GLubyte mask[])
{
	MesaDriver *md = (MesaDriver *) ctx->DriverCtx;
	BBitmap *bitmap = md->m_bitmap;

	assert(bitmap);

	int row = md->m_bottom - y;
	uint8 * ptr = (uint8 *) bitmap->Bits() + (row * bitmap->BytesPerRow()) + x * 4;
 	uint32 * pixel = (uint32 *) ptr;
	
	if (mask) {
		while(n--) {
			if (*mask++)
				*pixel = PACK_B_RGBA32(rgba[0]);
			pixel++;
			rgba++;
		};
	} else {
		while(n--) {
			*pixel++ = PACK_B_RGBA32(rgba[0]);
			rgba++;
		};
	};
 }


void MesaDriver::WriteRGBSpanBack(const GLcontext *ctx, GLuint n,
                                GLint x, GLint y,
                                CONST GLubyte rgb[][3],
                                const GLubyte mask[])
{
	MesaDriver *md = (MesaDriver *) ctx->DriverCtx;
	BBitmap *bitmap = md->m_bitmap;

	assert(bitmap);

	int row = md->m_bottom - y;
	uint8 * ptr = (uint8 *) bitmap->Bits() + (row * bitmap->BytesPerRow()) + x * 4;
 	uint32 * pixel = (uint32 *) ptr;
	
	if (mask) {
		while(n--) {
			if (*mask++)
				*pixel = PACK_B_RGB32(rgb[0]);
			pixel++;
			rgb++;
		};
	} else {
		while(n--) {
			*pixel++ = PACK_B_RGB32(rgb[0]);
			rgb++;
		};
	};
}




void MesaDriver::WriteMonoRGBASpanBack(const GLcontext *ctx, GLuint n,
                                    GLint x, GLint y,
                                    const GLchan color[4], const GLubyte mask[])
{
	MesaDriver *md = (MesaDriver *) ctx->DriverCtx;
	BBitmap *bitmap = md->m_bitmap;

	assert(bitmap);

	int row = md->m_bottom - y;
	uint8 * ptr = (uint8 *) bitmap->Bits() + (row * bitmap->BytesPerRow()) + x * 4;
 	uint32 * pixel = (uint32 *) ptr;
	uint32 pixel_color = PACK_B_RGBA32(color);
	
	if (mask) {
		while(n--) {
			if (*mask++)
				*pixel = pixel_color;
			pixel++;
		};
	} else {
		while(n--) {
			*pixel++ = pixel_color;
		};
	};
}


void MesaDriver::WriteRGBAPixelsBack(const GLcontext *ctx,
                                   GLuint n, const GLint x[], const GLint y[],
                                   CONST GLubyte rgba[][4],
                                   const GLubyte mask[] )
{
   MesaDriver *md = (MesaDriver *) ctx->DriverCtx;
   BBitmap *bitmap = md->m_bitmap;

	assert(bitmap);
#if 0
	while(n--) {
		if (*mask++) {
			int row = md->m_bottom - *y;
			uint8 * pixel = (uint8 *) bitmap->Bits() + (row * bitmap->BytesPerRow()) + *x * 4;
			*((uint32 *) pixel) = PACK_B_RGBA32(rgba[0]);
		};
		x++;
		y++;
		rgba++;
	};
#else
   if (mask) {
      for (GLuint i = 0; i < n; i++) {
         if (mask[i]) {
            GLubyte *pixel = (GLubyte *) bitmap->Bits()
            + ((md->m_bottom - y[i]) * bitmap->BytesPerRow()) + x[i] * 4;
            pixel[BE_RCOMP] = rgba[i][RCOMP];
            pixel[BE_GCOMP] = rgba[i][GCOMP];
            pixel[BE_BCOMP] = rgba[i][BCOMP];
            pixel[BE_ACOMP] = rgba[i][ACOMP];
         }
      }
   }
   else {
      for (GLuint i = 0; i < n; i++) {
         GLubyte *pixel = (GLubyte *) bitmap->Bits()
            + ((md->m_bottom - y[i]) * bitmap->BytesPerRow()) + x[i] * 4;
         pixel[BE_RCOMP] = rgba[i][RCOMP];
         pixel[BE_GCOMP] = rgba[i][GCOMP];
         pixel[BE_BCOMP] = rgba[i][BCOMP];
         pixel[BE_ACOMP] = rgba[i][ACOMP];
      }
   }
#endif
}


void MesaDriver::WriteMonoRGBAPixelsBack(const GLcontext *ctx, GLuint n,
                                      const GLint x[], const GLint y[],
                                      const GLchan color[4],
                                      const GLubyte mask[])
{
	MesaDriver *md = (MesaDriver *) ctx->DriverCtx;
	BBitmap *bitmap = md->m_bitmap;

	assert(bitmap);

	uint32 pixel_color = PACK_B_RGBA32(color);
#if 0	
	while(n--) {
		if (*mask++) {
			int row = md->m_bottom - *y;
			uint8 * pixel = (uint8 *) bitmap->Bits() + (row * bitmap->BytesPerRow()) + *x * 4;

			*((uint32 *) pixel) = pixel_color;
		};
		x++;
		y++;
	};
#else
   if (mask) {
      for (GLuint i = 0; i < n; i++) {
         if (mask[i]) {
         	GLubyte * ptr = (GLubyte *) bitmap->Bits()
            	+ ((md->m_bottom - y[i]) * bitmap->BytesPerRow()) + x[i] * 4;
            *((uint32 *) ptr) = pixel_color;
         }
      }
   }
   else {
	  for (GLuint i = 0; i < n; i++) {
       	GLubyte * ptr = (GLubyte *) bitmap->Bits()
	           	+ ((md->m_bottom - y[i]) * bitmap->BytesPerRow()) + x[i] * 4;
       *((uint32 *) ptr) = pixel_color;
      }
   }
#endif
}


void MesaDriver::WriteCI32SpanBack( const GLcontext *ctx, GLuint n,
                                 GLint x, GLint y,
                                 const GLuint index[], const GLubyte mask[] )
{
 	printf("WriteCI32SpanBack() not implemented yet!\n");
   // TODO
}

void MesaDriver::WriteCI8SpanBack( const GLcontext *ctx, GLuint n,
                                GLint x, GLint y,
                                const GLubyte index[], const GLubyte mask[] )
{
  	printf("WriteCI8SpanBack() not implemented yet!\n");
  // TODO
}

void MesaDriver::WriteMonoCISpanBack( const GLcontext *ctx, GLuint n,
                                   GLint x, GLint y,
                                   GLuint colorIndex, const GLubyte mask[] )
{
 	printf("WriteMonoCISpanBack() not implemented yet!\n");
   // TODO
}


void MesaDriver::WriteCI32PixelsBack( const GLcontext *ctx, GLuint n,
                                   const GLint x[], const GLint y[],
                                   const GLuint index[], const GLubyte mask[] )
{
 	printf("WriteCI32PixelsBack() not implemented yet!\n");
   // TODO
}

void MesaDriver::WriteMonoCIPixelsBack( const GLcontext *ctx, GLuint n,
                                     const GLint x[], const GLint y[],
                                     GLuint colorIndex, const GLubyte mask[] )
{
 	printf("WriteMonoCIPixelsBack() not implemented yet!\n");
   // TODO
}


void MesaDriver::ReadCI32SpanBack( const GLcontext *ctx,
                                GLuint n, GLint x, GLint y, GLuint index[] )
{
 	printf("ReadCI32SpanBack() not implemented yet!\n");
   // TODO
}


void MesaDriver::ReadRGBASpanBack( const GLcontext *ctx, GLuint n,
                                GLint x, GLint y, GLubyte rgba[][4] )
{
   MesaDriver *md = (MesaDriver *) ctx->DriverCtx;
   const BBitmap *bitmap = md->m_bitmap;
   assert(bitmap);
   int row = md->m_bottom - y;
   const GLubyte *pixel = (GLubyte *) bitmap->Bits()
                        + (row * bitmap->BytesPerRow()) + x * 4;

   for (GLuint i = 0; i < n; i++) {
      rgba[i][RCOMP] = pixel[BE_RCOMP];
      rgba[i][GCOMP] = pixel[BE_GCOMP];
      rgba[i][BCOMP] = pixel[BE_BCOMP];
      rgba[i][ACOMP] = pixel[BE_ACOMP];
      pixel += 4;
   }
}


void MesaDriver::ReadCI32PixelsBack( const GLcontext *ctx,
                                   GLuint n, const GLint x[], const GLint y[],
                                   GLuint indx[], const GLubyte mask[] )
{
 	printf("ReadCI32PixelsBack() not implemented yet!\n");
   // TODO
}


void MesaDriver::ReadRGBAPixelsBack( const GLcontext *ctx,
                                  GLuint n, const GLint x[], const GLint y[],
                                  GLubyte rgba[][4], const GLubyte mask[] )
{
   MesaDriver *md = (MesaDriver *) ctx->DriverCtx;
   const BBitmap *bitmap = md->m_bitmap;
   assert(bitmap);

   if (mask) {
      for (GLuint i = 0; i < n; i++) {
         if (mask[i]) {
            GLubyte *pixel = (GLubyte *) bitmap->Bits()
            + ((md->m_bottom - y[i]) * bitmap->BytesPerRow()) + x[i] * 4;
	         rgba[i][RCOMP] = pixel[BE_RCOMP];
    	     rgba[i][GCOMP] = pixel[BE_GCOMP];
        	 rgba[i][BCOMP] = pixel[BE_BCOMP];
        	 rgba[i][ACOMP] = pixel[BE_ACOMP];
         };
      };
   } else {
      for (GLuint i = 0; i < n; i++) {
         GLubyte *pixel = (GLubyte *) bitmap->Bits()
            + ((md->m_bottom - y[i]) * bitmap->BytesPerRow()) + x[i] * 4;
         rgba[i][RCOMP] = pixel[BE_RCOMP];
         rgba[i][GCOMP] = pixel[BE_GCOMP];
         rgba[i][BCOMP] = pixel[BE_BCOMP];
         rgba[i][ACOMP] = pixel[BE_ACOMP];
      };
   };
}

const char * color_space_name(color_space space)
{
#define C2N(a)	case a:	return #a

	switch (space) {
	C2N(B_RGB24);
	C2N(B_RGB32);
	C2N(B_RGBA32);
	C2N(B_RGB32_BIG);
	C2N(B_RGBA32_BIG);
	C2N(B_GRAY8);
	C2N(B_GRAY1);
	C2N(B_RGB16);
	C2N(B_RGB15);
	C2N(B_RGBA15);
	C2N(B_CMAP8);
	default:
		return "Unknown!";
	};

#undef C2N
};