-static unsigned int
-svga_texture_is_referenced( struct pipe_context *pipe,
- struct pipe_resource *texture,
- unsigned face, unsigned level)
-{
- struct svga_texture *tex = svga_texture(texture);
- struct svga_screen *ss = svga_screen(pipe->screen);
-
- /**
- * The screen does not cache texture writes.
- */
-
- if (!tex->handle || ss->sws->surface_is_flushed(ss->sws, tex->handle))
- return PIPE_UNREFERENCED;
-
- /**
- * sws->surface_is_flushed() does not distinguish between read references
- * and write references. So assume a reference is both.
- */
-
- return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
-}
-
-
-
-/*
- * Helper function and arrays
- */
-
-SVGA3dSurfaceFormat
-svga_translate_format(enum pipe_format format)
-{
- switch(format) {
-
- case PIPE_FORMAT_B8G8R8A8_UNORM:
- return SVGA3D_A8R8G8B8;
- case PIPE_FORMAT_B8G8R8X8_UNORM:
- return SVGA3D_X8R8G8B8;
-
- /* Required for GL2.1:
- */
- case PIPE_FORMAT_B8G8R8A8_SRGB:
- return SVGA3D_A8R8G8B8;
-
- case PIPE_FORMAT_B5G6R5_UNORM:
- return SVGA3D_R5G6B5;
- case PIPE_FORMAT_B5G5R5A1_UNORM:
- return SVGA3D_A1R5G5B5;
- case PIPE_FORMAT_B4G4R4A4_UNORM:
- return SVGA3D_A4R4G4B4;
-
-
- /* XXX: Doesn't seem to work properly.
- case PIPE_FORMAT_Z32_UNORM:
- return SVGA3D_Z_D32;
- */
- case PIPE_FORMAT_Z16_UNORM:
- return SVGA3D_Z_D16;
- case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
- return SVGA3D_Z_D24S8;
- case PIPE_FORMAT_X8Z24_UNORM:
- return SVGA3D_Z_D24X8;
-
- case PIPE_FORMAT_A8_UNORM:
- return SVGA3D_ALPHA8;
- case PIPE_FORMAT_L8_UNORM:
- return SVGA3D_LUMINANCE8;
-
- case PIPE_FORMAT_DXT1_RGB:
- case PIPE_FORMAT_DXT1_RGBA:
- return SVGA3D_DXT1;
- case PIPE_FORMAT_DXT3_RGBA:
- return SVGA3D_DXT3;
- case PIPE_FORMAT_DXT5_RGBA:
- return SVGA3D_DXT5;
-
- default:
- return SVGA3D_FORMAT_INVALID;
- }
-}
-
-
-SVGA3dSurfaceFormat
-svga_translate_format_render(enum pipe_format format)
-{
- switch(format) {
- case PIPE_FORMAT_B8G8R8A8_UNORM:
- case PIPE_FORMAT_B8G8R8X8_UNORM:
- case PIPE_FORMAT_B5G5R5A1_UNORM:
- case PIPE_FORMAT_B4G4R4A4_UNORM:
- case PIPE_FORMAT_B5G6R5_UNORM:
- case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
- case PIPE_FORMAT_X8Z24_UNORM:
- case PIPE_FORMAT_Z32_UNORM:
- case PIPE_FORMAT_Z16_UNORM:
- case PIPE_FORMAT_L8_UNORM:
- return svga_translate_format(format);
-
-#if 1
- /* For on host conversion */
- case PIPE_FORMAT_DXT1_RGB:
- return SVGA3D_X8R8G8B8;
- case PIPE_FORMAT_DXT1_RGBA:
- case PIPE_FORMAT_DXT3_RGBA:
- case PIPE_FORMAT_DXT5_RGBA:
- return SVGA3D_A8R8G8B8;
-#endif
-
- default:
- return SVGA3D_FORMAT_INVALID;
- }
-}
-
-