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https://github.com/ekeeke/Genesis-Plus-GX.git
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28775cc3aa
---------- * added Mega CD / Sega CD hardware emulation (incl. Sub 68K, CDD, CDC, PCM, GFX rotation/scaling, etc) * added .ISO & .BIN CD image file support * added 512K backup cartridge RAM support * added savestate support for CD games NOTES: ~~~~~~ * to play CD games, original BIOS ROM files are required in /genplus/bios/ directory: unzip & rename them to bios_CD_U.bin, bios_CD_E.bin, bios_CD_J.bin * CD audio tracks (CD-DA) are not supported (yet) [Core/CPU] ---------- * modified 68k core for Mega CD / Sega CD support [Core/VDP] --------------- * improved DMA accuracy * added support for 8-bit VRAM writes with undocumented code value (verified on real hardware by Nemesis) [Gamecube/Wii] --------------- * modified Master System & Game Gear "BIOS" support (files should be named bios_U.sms, bios_J.sms, bios_E.sms & bios.gg and copied to /genplus/bios directory). * replaced "Hard Reset" button by a Soft Reset for systems having a Reset button (Mega Drive / Genesis & Master System) * State & SRAM files are now only compressed when saving to Gamecube Memory Cards * various fixes & cleanup. [Core/SCD] ---------- * added Mega CD / Sega CD hardware emulation (incl. Sub 68K, CDD, CDC, PCM, GFX rotation/scaling, etc) * added .ISO & .BIN CD image file support * added 512K backup cartridge RAM support * added savestate support for CD games NOTES: ~~~~~~ * to play CD games, original BIOS ROM files are required in /genplus/bios/ directory: unzip & rename them to bios_CD_U.bin, bios_CD_E.bin, bios_CD_J.bin * CD audio tracks (CD-DA) are not supported (yet) [Core/CPU] ---------- * modified 68k core for Mega CD / Sega CD support [Core/VDP] --------------- * improved DMA accuracy * added support for 8-bit VRAM writes with undocumented code value (verified on real hardware by Nemesis) [Gamecube/Wii] --------------- * modified Master System & Game Gear "BIOS" support (files should be named bios_U.sms, bios_J.sms, bios_E.sms & bios.gg and copied to /genplus/bios directory). * replaced "Hard Reset" button by a Soft Reset for systems having a Reset button (Mega Drive / Genesis & Master System) * State & SRAM files are now only compressed when saving to Gamecube Memory Cards * various fixes & cleanup.
90 lines
4.1 KiB
C
90 lines
4.1 KiB
C
/***************************************************************************************
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* Genesis Plus
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* Video Display Processor (Modes 0, 1, 2, 3, 4 & 5 rendering)
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*
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* Support for SG-1000, Master System (315-5124 & 315-5246), Game Gear & Mega Drive VDP
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*
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* Copyright (C) 1998-2007 Charles Mac Donald (original code)
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* Copyright (C) 2007-2012 Eke-Eke (Genesis Plus GX)
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*
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* Redistribution and use of this code or any derivative works are permitted
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* provided that the following conditions are met:
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*
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* - Redistributions may not be sold, nor may they be used in a commercial
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* product or activity.
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*
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* - Redistributions that are modified from the original source must include the
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* complete source code, including the source code for all components used by a
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* binary built from the modified sources. However, as a special exception, the
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* source code distributed need not include anything that is normally distributed
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* (in either source or binary form) with the major components (compiler, kernel,
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* and so on) of the operating system on which the executable runs, unless that
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* component itself accompanies the executable.
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*
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* - Redistributions must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************************/
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#ifndef _RENDER_H_
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#define _RENDER_H_
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/* Global variables */
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extern uint8 object_count;
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extern uint16 spr_col;
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/* Function prototypes */
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extern void render_init(void);
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extern void render_reset(void);
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extern void render_line(int line);
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extern void blank_line(int line, int offset, int width);
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extern void remap_line(int line);
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extern void window_clip(unsigned int data, unsigned int sw);
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extern void render_bg_m0(int line, int width);
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extern void render_bg_m1(int line, int width);
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extern void render_bg_m1x(int line, int width);
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extern void render_bg_m2(int line, int width);
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extern void render_bg_m3(int line, int width);
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extern void render_bg_m3x(int line, int width);
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extern void render_bg_inv(int line, int width);
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extern void render_bg_m4(int line, int width);
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extern void render_bg_m5(int line, int width);
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extern void render_bg_m5_vs(int line, int width);
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extern void render_bg_m5_im2(int line, int width);
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extern void render_bg_m5_im2_vs(int line, int width);
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extern void render_obj_tms(int max_width);
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extern void render_obj_m4(int max_width);
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extern void render_obj_m5(int max_width);
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extern void render_obj_m5_ste(int max_width);
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extern void render_obj_m5_im2(int max_width);
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extern void render_obj_m5_im2_ste(int max_width);
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extern void parse_satb_tms(int line);
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extern void parse_satb_m4(int line);
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extern void parse_satb_m5(int line);
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extern void update_bg_pattern_cache_m4(int index);
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extern void update_bg_pattern_cache_m5(int index);
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extern void color_update_m4(int index, unsigned int data);
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extern void color_update_m5(int index, unsigned int data);
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/* Function pointers */
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extern void (*render_bg)(int line, int width);
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extern void (*render_obj)(int max_width);
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extern void (*parse_satb)(int line);
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extern void (*update_bg_pattern_cache)(int index);
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#endif /* _RENDER_H_ */
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