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/***************************************************************************
* Copyright (C) 2010 PCSX4ALL Team *
* Copyright (C) 2010 Unai *
* Copyright (C) 2016 Senquack (dansilsby <AT> gmail <DOT> com) *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. *
***************************************************************************/
#ifndef GPU_UNAI_GPU_H
#define GPU_UNAI_GPU_H
struct gpu_unai_config_t {
uint8_t pixel_skip:1; // If 1, allows skipping rendering pixels that
// would not be visible when a high horizontal
// resolution PS1 video mode is set.
// Only applies to devices with low resolutions
// like 320x240. Should not be used if a
// down-scaling framebuffer blitter is in use.
// Can cause gfx artifacts if game reads VRAM
// to do framebuffer effects.
uint8_t ilace_force:3; // Option to force skipping rendering of lines,
// for very slow platforms. Value will be
// assigned to 'ilace_mask' in gpu_unai struct.
// Normally 0. Value '1' will skip rendering
// odd lines.
uint8_t scale_hires:1; // If 1, will scale hi-res output to
// 320x240 when gpulib reads the frame.
// Implies pixel_skip and ilace_force
// (when height > 240).
uint8_t lighting:1;
uint8_t fast_lighting:1;
uint8_t blending:1;
uint8_t dithering:1;
//senquack Only PCSX Rearmed's version of gpu_unai had this, and I
// don't think it's necessary. It would require adding 'AH' flag to
// gpuSpriteSpanFn() increasing size of sprite span function array.
//uint8_t enableAbbeyHack:1; // Abe's Odyssey hack
////////////////////////////////////////////////////////////////////////////
// Variables used only by older standalone version of gpu_unai (gpu.cpp)
#ifndef USE_GPULIB
uint8_t prog_ilace:1; // Progressive interlace option (old option)
// This option was somewhat oddly named:
// When in interlaced video mode, on a low-res
// 320x240 device, only the even lines are
// rendered. This option will take that one
// step further and only render half the even
// even lines one frame, and then the other half.
uint8_t frameskip_count:3; // Frame skip (0..7)
#endif
};
extern gpu_unai_config_t gpu_unai_config_ext;
// TODO: clean up show_fps frontend option
extern bool show_fps;
#endif // GPU_UNAI_GPU_H
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