C++ (Cpp) _swrast_mask_rgba_arrayの例

コード例 #1

ファイル: s_buffers.c プロジェクト: Magister/x11rdp_xorg71

/**
 * Clear the color buffer when glColorMask is in effect.
 */
static void
clear_rgba_buffer_with_masking(GLcontext *ctx, struct gl_renderbuffer *rb)
{
    const GLint x = ctx->DrawBuffer->_Xmin;
    const GLint y = ctx->DrawBuffer->_Ymin;
    const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
    const GLint width  = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
    GLchan clearColor[4];
    GLint i;

    ASSERT(ctx->Visual.rgbMode);
    ASSERT(rb->PutRow);

    CLAMPED_FLOAT_TO_CHAN(clearColor[RCOMP], ctx->Color.ClearColor[0]);
    CLAMPED_FLOAT_TO_CHAN(clearColor[GCOMP], ctx->Color.ClearColor[1]);
    CLAMPED_FLOAT_TO_CHAN(clearColor[BCOMP], ctx->Color.ClearColor[2]);
    CLAMPED_FLOAT_TO_CHAN(clearColor[ACOMP], ctx->Color.ClearColor[3]);

    for (i = 0; i < height; i++) {
        GLchan rgba[MAX_WIDTH][4];
        GLint j;
        for (j = 0; j < width; j++) {
            COPY_CHAN4(rgba[j], clearColor);
        }
        _swrast_mask_rgba_array( ctx, rb, width, x, y + i, rgba );
        rb->PutRow(ctx, rb, width, x, y + i, rgba, NULL);
    }
}

コード例 #2

ファイル: s_buffers.c プロジェクト: basecq/q2dos

/*
 * Clear the color buffer when glColorMask or glIndexMask is in effect.
 */
static void
clear_color_buffer_with_masking( GLcontext *ctx )
{
   SWcontext *swrast = SWRAST_CONTEXT(ctx);
   const GLint x = ctx->DrawBuffer->_Xmin;
   const GLint y = ctx->DrawBuffer->_Ymin;
   const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
   const GLint width  = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;

   if (ctx->Visual.rgbMode) {
      /* RGBA mode */
      GLchan clearColor[4];
      GLint i;
      CLAMPED_FLOAT_TO_CHAN(clearColor[RCOMP], ctx->Color.ClearColor[0]);
      CLAMPED_FLOAT_TO_CHAN(clearColor[GCOMP], ctx->Color.ClearColor[1]);
      CLAMPED_FLOAT_TO_CHAN(clearColor[BCOMP], ctx->Color.ClearColor[2]);
      CLAMPED_FLOAT_TO_CHAN(clearColor[ACOMP], ctx->Color.ClearColor[3]);
      for (i = 0; i < height; i++) {
         GLchan rgba[MAX_WIDTH][4];
         GLint j;
         for (j = 0; j < width; j++) {
            COPY_CHAN4(rgba[j], clearColor);
         }
         _swrast_mask_rgba_array( ctx, width, x, y + i, rgba );
         (*swrast->Driver.WriteRGBASpan)( ctx, width, x, y + i,
                                          (CONST GLchan (*)[4]) rgba, NULL );
      }
   }
   else {
      /* Color index mode */
      GLuint span[MAX_WIDTH];
      GLubyte mask[MAX_WIDTH];
      GLint i, j;
      MEMSET( mask, 1, width );
      for (i=0;i<height;i++) {
         for (j=0;j<width;j++) {
            span[j] = ctx->Color.ClearIndex;
         }
         _swrast_mask_index_array( ctx, width, x, y + i, span );
         (*swrast->Driver.WriteCI32Span)( ctx, width, x, y + i, span, mask );
      }
   }
}