Add strplay example
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6
Makefile
6
Makefile
@ -48,6 +48,8 @@ hello_bs:
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$(MAKE) -C hello_bs all
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$(MAKE) -C hello_bs all
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hello_str:
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hello_str:
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$(MAKE) -C hello_str all
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$(MAKE) -C hello_str all
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hello_strplay:
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$(MAKE) -C hello_strplay all
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clean:
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clean:
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$(MAKE) -C hello_2pads clean
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$(MAKE) -C hello_2pads clean
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@ -76,6 +78,7 @@ clean:
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$(MAKE) -C hello_xa cleansub
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$(MAKE) -C hello_xa cleansub
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$(MAKE) -C hello_bs cleansub
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$(MAKE) -C hello_bs cleansub
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$(MAKE) -C hello_str cleansub
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$(MAKE) -C hello_str cleansub
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$(MAKE) -C hello_strplay cleansub
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all:
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all:
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$(MAKE) -C hello_2pads
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$(MAKE) -C hello_2pads
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@ -102,11 +105,12 @@ all:
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$(MAKE) -C hello_xa all
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$(MAKE) -C hello_xa all
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$(MAKE) -C hello_bs all
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$(MAKE) -C hello_bs all
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$(MAKE) -C hello_str all
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$(MAKE) -C hello_str all
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$(MAKE) -C hello_strplay all
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# declare phony rules
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# declare phony rules
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.PHONY: hello_2pads hello_cube hello_cubetex hello_poly_fun hello_gte_opti \
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.PHONY: hello_2pads hello_cube hello_cubetex hello_poly_fun hello_gte_opti \
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hello_light hello_multivag hello_pad hello_poly hello_poly_ft hello_poly_gt \
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hello_light hello_multivag hello_pad hello_poly hello_poly_ft hello_poly_gt \
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hello_poly_gt_tw hello_poly_inline hello_sio hello_sprt hello_tile \
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hello_poly_gt_tw hello_poly_inline hello_sio hello_sprt hello_tile \
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hello_vag hello_world hello_cdda hello_cd hello_xa hello_bs hello_str \
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hello_vag hello_world hello_cdda hello_cd hello_xa hello_bs hello_str hello_strplay \
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hello_poly_stp hello_cubetex_stp \
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hello_poly_stp hello_cubetex_stp \
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clean all
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clean all
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12
hello_strplay/Makefile
Normal file
12
hello_strplay/Makefile
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@ -0,0 +1,12 @@
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.PHONY: all cleansub
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all:
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mkpsxiso -y ./isoconfig.xml
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cleansub:
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$(MAKE) clean
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rm -f hello_strplay.cue hello_strplay.bin
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TARGET = hello_strplay
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SRCS = hello_strplay.c \
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include ../common.mk
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36
hello_strplay/README.md
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36
hello_strplay/README.md
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@ -0,0 +1,36 @@
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This example show how to use Lameguy64's [STR playback library](https://github.com/ABelliqueux/nolibgs_hello_worlds/tree/main/hello_str#str-playback-library).
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For a barebone example, see the [hello_str](https://github.com/ABelliqueux/nolibgs_hello_worlds/tree/main/hello_str) example.
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## Compiling
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You need [mkpsxiso](https://github.com/Lameguy64/mkpsxiso) in your $PATH to generate a PSX disk image.
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Typing
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```bash
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make
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```
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in a terminal will compile and generate the bin/cue files.
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Typing
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```bash
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make cleansub
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```
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will clean the current directory.
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## STR playback library
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@Lameguy64 has spent some time making a STR playback library that's easily included in a project :
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> One thing that I find somewhat missing here is a decent piece of code for playing STR video files easily. So, what I did was take the old and messy PsyQ STR player example, clean it up entirely, and finally make it into a cute little c library for easy implementation.
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Original post : http://www.psxdev.net/forum/viewtopic.php?t=507
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Original download link : https://www.mediafire.com/download/s61u86sxd1djncy/strplay.7z
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Mirror : http://psx.arthus.net/code/strplay.7z
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## Video encoding and more informations
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See the [wiki](https://github.com/ABelliqueux/nolibgs_hello_worlds/wiki/STR).
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## Video credits
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The video and song used in this example are by Nina Paley : https://archive.org/details/CopyingIsNotTheft-ScratchTrack1280X720Hdv
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115
hello_strplay/hello_strplay.c
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115
hello_strplay/hello_strplay.c
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// Using the strplay library.
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// Schnappy 07-2021
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// based on Lameguy64 strplay library : http://www.psxdev.net/forum/viewtopic.php?t=507
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// Original PsyQ sample code : /psyq/addons/cd/MOVIE
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// Video to STR conversion : https://github.com/ABelliqueux/nolibgs_hello_worlds/wiki/STR
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#include <sys/types.h>
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#include <stdio.h>
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#include <libgte.h>
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#include <libetc.h>
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#include <libgpu.h>
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// CD library
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#include <libcd.h>
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// CODEC library
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#include <libpress.h>
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// include Lameguy64's library
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#include "strplay.c"
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#define VMODE 0 // Video Mode : 0 : NTSC, 1: PAL
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#define TRUECOL 1 // 0 : 16bpp, 1: 24bpp
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#define SCREENXRES 320 // Screen width
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#define SCREENYRES 240 + (VMODE << 4) // Screen height : If VMODE is 0 = 240, if VMODE is 1 = 256
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#define CENTERX SCREENXRES/2 // Center of screen on x
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#define CENTERY SCREENYRES/2 // Center of screen on y
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#define MARGINX 8 // margins for text display
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#define MARGINY 16
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#define FONTSIZE 8 * 7 // Text Field Height
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DISPENV disp[2]; // Double buffered DISPENV and DRAWENV
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DRAWENV draw[2];
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short db = 0; // index of which buffer is used, values 0, 1
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STRFILE StrFile[] = {
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// File name Resolution Frame count
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"\\COPY.STR;1", 320, 240, 893
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};
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// When using RGB24, a special routine has to be setup as a callback function to avoid MDEC/CDROM conflict
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// See http://psx.arthus.net/sdk/Psy-Q/DOCS/LibRef47.pdf , p.713
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static void strCheckRGB24();
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void init(void)
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{
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ResetCallback();
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ResetGraph(0); // Initialize drawing engine with a complete reset (0)
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SetDefDispEnv(&disp[0], 0, 0 , SCREENXRES, SCREENYRES); // Set display area for both &disp[0] and &disp[1]
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SetDefDispEnv(&disp[1], 0, SCREENYRES, SCREENXRES, SCREENYRES); // &disp[0] is on top of &disp[1]
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SetDefDrawEnv(&draw[0], 0, SCREENYRES, SCREENXRES, SCREENYRES); // Set draw for both &draw[0] and &draw[1]
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SetDefDrawEnv(&draw[1], 0, 0 , SCREENXRES, SCREENYRES); // &draw[0] is below &draw[1]
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// Set video mode
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#if VMODE
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SetVideoMode(MODE_PAL);
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disp[0].disp.y = 8;
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disp[1].disp.y = 8;
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#endif
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SetDispMask(1); // Display on screen
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setRGB0(&draw[0], 155, 0, 150); // set color for first draw area
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setRGB0(&draw[1], 155, 0, 150); // set color for second draw area
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draw[0].isbg = 0; // set mask for draw areas. 1 means repainting the area with the RGB color each frame
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draw[1].isbg = 0;
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#if TRUECOL
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disp[0].isrgb24 = 1;
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disp[1].isrgb24 = 1;
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#endif
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PutDispEnv(&disp[db]); // set the disp and draw environnments
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PutDrawEnv(&draw[db]);
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FntLoad(960, 0); // Load font to vram at 960,0(+128)
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FntOpen(MARGINX, MARGINY, SCREENXRES - MARGINX * 2, FONTSIZE, 0, 280 ); // FntOpen(x, y, width, height, black_bg, max. nbr. chars
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}
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void display(void)
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{
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DrawSync(0); // Wait for all drawing to terminate
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VSync(0); // Wait for the next vertical blank
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PutDispEnv(&disp[db]); // set alternate disp and draw environnments
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PutDrawEnv(&draw[db]);
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db = !db; // flip db value (0 or 1)
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}
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void main() {
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// Reset and initialize stuff
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ResetCallback();
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CdInit();
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PadInit(0);
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ResetGraph(0);
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SetGraphDebug(0);
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// Play the video in loop
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while (1) {
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if (PlayStr(320, 240, 0, 0, &StrFile[0]) == 0) // If player presses Start
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break; // Exit the loop
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}
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}
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static void strCheckRGB24() {
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/* From http://psx.arthus.net/sdk/Psy-Q/DOCS/, p.713
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* When playing a movie in 24-bit mode, there is a potential hardware conflict between the CD subsystem
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* and the MDEC image decompression system which can result in corrupted data. To avoid this,
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* StCdInterrupt() may defer transferring a sector and instead set a flag variable called StCdInterFlag to
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* indicate that a CD sector is ready to be transferred. Once the MDEC is finished transferring data, your
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* application should check StCdIntrFlag and call StCdInterrupt() directly if it is set.
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*/
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#if TRUECOL
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extern u_long StCdIntrFlag;
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// If flag was set
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if ( StCdIntrFlag ) {
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// Trigger data transfer
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StCdInterrupt();
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// Reset flag
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StCdIntrFlag = 0;
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}
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#endif
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}
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101
hello_strplay/isoconfig.xml
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101
hello_strplay/isoconfig.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<!-- MKPSXISO example XML script -->
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<!-- <iso_project>
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Starts an ISO image project to build. Multiple <iso_project> elements may be
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specified within the same xml script which useful for multi-disc projects.
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<iso_project> elements must contain at least one <track> element.
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Attributes:
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image_name - File name of the ISO image file to generate.
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cue_sheet - Optional, file name of the cue sheet for the image file
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(required if more than one track is specified).
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-->
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<iso_project image_name="hello_strplay.bin" cue_sheet="hello_strplay.cue">
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<!-- <track>
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Specifies a track to the ISO project. This example element creates a data
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track for storing data files and CD-XA/STR streams.
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Only one data track is allowed and data tracks must only be specified as the
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first track in the ISO image and cannot be specified after an audio track.
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Attributes:
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type - Track type (either data or audio).
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source - For audio tracks only, specifies the file name of a wav audio
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file to use for the audio track.
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-->
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<track type="data">
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<!-- <identifiers>
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Optional, Specifies the identifier strings to use for the data track.
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Attributes:
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system - Optional, specifies the system identifier (PLAYSTATION if unspecified).
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application - Optional, specifies the application identifier (PLAYSTATION if unspecified).
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volume - Optional, specifies the volume identifier.
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volume_set - Optional, specifies the volume set identifier.
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publisher - Optional, specifies the publisher identifier.
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data_preparer - Optional, specifies the data preparer identifier. If unspecified, MKPSXISO
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will fill it with lengthy text telling that the image file was generated
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using MKPSXISO.
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-->
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<identifiers
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system ="PLAYSTATION"
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application ="PLAYSTATION"
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volume ="HELOCD"
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volume_set ="HELOCD"
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publisher ="SCHNAPPY"
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data_preparer ="MKPSXISO"
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/>
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<!-- <license>
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Optional, specifies the license file to use, the format of the license file must be in
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raw 2336 byte sector format, like the ones included with the PsyQ SDK in psyq\cdgen\LCNSFILE.
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License data is not included within the MKPSXISO program to avoid possible legal problems
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in the open source environment... Better be safe than sorry.
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Attributes:
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file - Specifies the license file to inject into the ISO image.
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-->
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<!--
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<license file="LICENSEA.DAT"/>
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-->
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<!-- <directory_tree>
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Specifies and contains the directory structure for the data track.
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Attributes:
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None.
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-->
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<directory_tree>
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<!-- <file>
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Specifies a file in the directory tree.
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Attributes:
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name - File name to use in the directory tree (can be used for renaming).
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type - Optional, type of file (data for regular files and is the default, xa for
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XA audio and str for MDEC video).
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source - File name of the source file.
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-->
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<!-- Stores system.txt as system.cnf -->
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<file name="system.cnf" type="data" source="system.cnf"/>
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<file name="SCES_313.37" type="data" source="hello_strplay.ps-exe"/>
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<file name="COPY.STR" type="str" source="str/copyings.str"/>
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<dummy sectors="1024"/>
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<!-- <dir>
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Specifies a directory in the directory tree. <file> and <dir> elements inside the element
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will be inside the specified directory.
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-->
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</directory_tree>
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</track>
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</iso_project>
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BIN
hello_strplay/str/copyings.str
Normal file
BIN
hello_strplay/str/copyings.str
Normal file
Binary file not shown.
407
hello_strplay/strplay.c
Normal file
407
hello_strplay/strplay.c
Normal file
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/*
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Simple STR Player Library by Lameguy64
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(?) 2014 Meido-Tek Productions/Lame Studios
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Original PsyQ sample programmed by:
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Yutaka
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Suzu
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Masa
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Ume
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Code heavily refined by:
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Lameguy64
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What Lameguy did to the original code:
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- Removed all of the icky yucky UTF-16 junk
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- Fixed all crap-English comments
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- Greatly improved code formatting
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- Renamed variables with better names
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- Buffer arrays are now initialized only when the playback routine is called
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Libraries Required:
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libetc
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libgte
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libgpu
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libcd
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Function list:
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int PlayStr(int xres, int yres, int xpos, int ypos, STRFILE *str)
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Parameters:
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xres, yres - Video resolution.
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xpos, ypos - Framebuffer offset on where to draw the video.
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STRFILE *str - STRFILE entry to play.
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Notes:
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Just make sure that you have at least 192KB of free memory before calling
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the PlayStr function otherwise, the console will crash. As for the video
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resolution, it must be equal or less than 256 as the second buffer
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is located directly below the first buffer.
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Note:
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If compiling the sample fails, open your psyq.ini file located in \psyq\bin and
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append the following into the stdlib line:
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libds.lib libpress.lib
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*/
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#define IS_RGB24 1 // 0:16-bit playback, 1:24-bit playback (recommended for quality)
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#define RING_SIZE 32 // Ring Buffer size (32 sectors seems good enough)
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|
#if IS_RGB24==1
|
||||||
|
#define PPW 3/2 // pixels per short word
|
||||||
|
#define DCT_MODE 3 // Decode mode for DecDCTin routine
|
||||||
|
#else
|
||||||
|
#define PPW 1
|
||||||
|
#define DCT_MODE 2
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
// A simple struct to make STR handling a bit easier
|
||||||
|
typedef struct {
|
||||||
|
char FileName[32];
|
||||||
|
int Xres;
|
||||||
|
int Yres;
|
||||||
|
int NumFrames;
|
||||||
|
} STRFILE;
|
||||||
|
|
||||||
|
// Decode environment
|
||||||
|
typedef struct {
|
||||||
|
u_long *VlcBuff_ptr[2]; // Pointers to the VLC buffers
|
||||||
|
u_short *ImgBuff_ptr[2]; // Pointers to the frame slice buffers
|
||||||
|
RECT rect[2]; // VRAM parameters on where to draw the frame data to
|
||||||
|
RECT slice; // Frame slice parameters for loading into VRAM
|
||||||
|
int VlcID; // Current VLC buffer ID
|
||||||
|
int ImgID; // Current slice buffer ID
|
||||||
|
int RectID; // Current video buffer ID
|
||||||
|
int FrameDone; // Frame decode completion flag
|
||||||
|
} STRENV;
|
||||||
|
|
||||||
|
// A bunch of internal variables
|
||||||
|
static STRENV strEnv;
|
||||||
|
|
||||||
|
static int strScreenWidth=0,strScreenHeight=0;
|
||||||
|
static int strFrameX=0,strFrameY=0;
|
||||||
|
static int strNumFrames=0;
|
||||||
|
|
||||||
|
static int strFrameWidth=0,strFrameHeight=0; // Frame size of STR file
|
||||||
|
static int strPlayDone=0; // Playback completion flag
|
||||||
|
|
||||||
|
// Main function prototypes
|
||||||
|
int PlayStr(int xres, int yres, int xpos, int ypos, STRFILE *str);
|
||||||
|
|
||||||
|
// Internal function prototypes
|
||||||
|
static void strDoPlayback(STRFILE *str);
|
||||||
|
static void strCallback();
|
||||||
|
static void strNextVlc(STRENV *strEnv);
|
||||||
|
static void strSync(STRENV *strEnv, int mode);
|
||||||
|
static u_long *strNext(STRENV *strEnv);
|
||||||
|
static void strKickCD(CdlLOC *loc);
|
||||||
|
|
||||||
|
|
||||||
|
int PlayStr(int xres, int yres, int xpos, int ypos, STRFILE *str) {
|
||||||
|
|
||||||
|
/*
|
||||||
|
Main STR playback routine.
|
||||||
|
|
||||||
|
Returns:
|
||||||
|
0 - Playback failed or was skipped.
|
||||||
|
1 - Playback was finished.
|
||||||
|
*/
|
||||||
|
|
||||||
|
strNumFrames=str->NumFrames;
|
||||||
|
strScreenWidth=xres;
|
||||||
|
strScreenHeight=yres;
|
||||||
|
strFrameX=xpos;
|
||||||
|
strFrameY=ypos;
|
||||||
|
|
||||||
|
strPlayDone=0;
|
||||||
|
strDoPlayback(str);
|
||||||
|
|
||||||
|
if (strPlayDone == 0)
|
||||||
|
return(0);
|
||||||
|
else
|
||||||
|
return(1);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
static void strDoPlayback(STRFILE *str) {
|
||||||
|
|
||||||
|
/*
|
||||||
|
Does the actual STR playback.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int id; // Display buffer ID
|
||||||
|
DISPENV disp; // Display environment
|
||||||
|
CdlFILE file; // File info of video file
|
||||||
|
|
||||||
|
// Buffers initialized here so we won't waste too much memory for playing FMVs
|
||||||
|
// (just make sure you have at least 192KB of free memory before calling this routine)
|
||||||
|
u_long RingBuff[RING_SIZE*SECTOR_SIZE]; // Ring buffer
|
||||||
|
u_long VlcBuff[2][str->Xres/2*str->Yres]; // VLC buffers
|
||||||
|
u_short ImgBuff[2][16*PPW*str->Yres]; // Frame 'slice' buffers
|
||||||
|
|
||||||
|
// Set display mask so we won't see garbage while the stream is being prepared
|
||||||
|
SetDispMask(0);
|
||||||
|
|
||||||
|
// Get the CD location of the STR file to play
|
||||||
|
if (CdSearchFile(&file, str->FileName) == 0) {
|
||||||
|
#ifdef DEBUG
|
||||||
|
printf("ERROR: I cannot find video file %s\n", str->FileName);
|
||||||
|
#endif
|
||||||
|
SetDispMask(1);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Setup the buffer pointers
|
||||||
|
strEnv.VlcBuff_ptr[0] = &VlcBuff[0][0];
|
||||||
|
strEnv.VlcBuff_ptr[1] = &VlcBuff[1][0];
|
||||||
|
strEnv.VlcID = 0;
|
||||||
|
strEnv.ImgBuff_ptr[0] = &ImgBuff[0][0];
|
||||||
|
strEnv.ImgBuff_ptr[1] = &ImgBuff[1][0];
|
||||||
|
strEnv.ImgID = 0;
|
||||||
|
|
||||||
|
// Setup the display buffers on VRAM
|
||||||
|
strEnv.rect[0].x = strFrameX; // First page
|
||||||
|
strEnv.rect[0].y = strFrameY;
|
||||||
|
strEnv.rect[1].x = strFrameX; // Second page
|
||||||
|
strEnv.rect[1].y = strFrameY+strScreenHeight;
|
||||||
|
strEnv.RectID = 0;
|
||||||
|
|
||||||
|
// Set the parameters for uploading frame slices
|
||||||
|
strEnv.slice.x = strFrameX;
|
||||||
|
strEnv.slice.y = strFrameY;
|
||||||
|
strEnv.slice.w = 16*PPW;
|
||||||
|
strEnv.FrameDone = 0;
|
||||||
|
|
||||||
|
// Reset the MDEC
|
||||||
|
DecDCTReset(0);
|
||||||
|
// Set callback routine
|
||||||
|
DecDCToutCallback(strCallback);
|
||||||
|
// Set ring buffer
|
||||||
|
StSetRing(RingBuff, RING_SIZE);
|
||||||
|
// Set streaming parameters
|
||||||
|
StSetStream(IS_RGB24, 1, 0xffffffff, 0, 0);
|
||||||
|
// Begin streaming!
|
||||||
|
strKickCD(&file.pos);
|
||||||
|
|
||||||
|
// Load the first frame of video before entering main loop
|
||||||
|
strNextVlc(&strEnv);
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
|
||||||
|
// Decode the compressed frame data
|
||||||
|
DecDCTin(strEnv.VlcBuff_ptr[strEnv.VlcID], DCT_MODE);
|
||||||
|
|
||||||
|
// Prepare to receive the decoded image data from the MDEC
|
||||||
|
DecDCTout((u_long*)strEnv.ImgBuff_ptr[strEnv.ImgID], strEnv.slice.w*strEnv.slice.h/2);
|
||||||
|
|
||||||
|
// Get the next frame
|
||||||
|
strNextVlc(&strEnv);
|
||||||
|
|
||||||
|
// Wait for the frame to finish decoding
|
||||||
|
strSync(&strEnv, 0);
|
||||||
|
|
||||||
|
// Switch between the display buffers per frame
|
||||||
|
id = strEnv.RectID? 0: 1;
|
||||||
|
SetDefDispEnv(&disp, 0, strScreenHeight*id, strScreenWidth*PPW, strScreenHeight);
|
||||||
|
|
||||||
|
// Set parameters for 24-bit color mode
|
||||||
|
#if IS_RGB24 == 1
|
||||||
|
disp.isrgb24 = IS_RGB24;
|
||||||
|
disp.disp.w = disp.disp.w*2/3;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
VSync(0); // VSync to avoid screen tearing
|
||||||
|
PutDispEnv(&disp); // Apply the video parameters
|
||||||
|
SetDispMask(1); // Remove the display mask
|
||||||
|
|
||||||
|
if(strPlayDone == 1) {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
if(PadRead(1) & PADstart) { // stop button pressed exit animation routine
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
// Shutdown streaming
|
||||||
|
DecDCToutCallback(0);
|
||||||
|
StUnSetRing();
|
||||||
|
CdControlB(CdlPause, 0, 0);
|
||||||
|
|
||||||
|
}
|
||||||
|
static void strCallback() {
|
||||||
|
|
||||||
|
/*
|
||||||
|
Callback routine which is called whenever a slice has finished decoding.
|
||||||
|
All it does is transfer the decoded slice into VRAM.
|
||||||
|
*/
|
||||||
|
|
||||||
|
RECT TransferRect;
|
||||||
|
int id;
|
||||||
|
|
||||||
|
// In 24-bit color, StCdInterrupt must be called in every callback
|
||||||
|
#if IS_RGB24==1
|
||||||
|
extern u_long StCdIntrFlag;
|
||||||
|
if (StCdIntrFlag) {
|
||||||
|
StCdInterrupt();
|
||||||
|
StCdIntrFlag = 0;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
id = strEnv.ImgID;
|
||||||
|
TransferRect = strEnv.slice;
|
||||||
|
|
||||||
|
// Switch slice buffers
|
||||||
|
strEnv.ImgID = strEnv.ImgID? 0:1;
|
||||||
|
|
||||||
|
// Step to next slice
|
||||||
|
strEnv.slice.x += strEnv.slice.w;
|
||||||
|
|
||||||
|
// Frame not yet decoded completely?
|
||||||
|
if (strEnv.slice.x < strEnv.rect[strEnv.RectID].x + strEnv.rect[strEnv.RectID].w) {
|
||||||
|
|
||||||
|
// Prepare for next slice
|
||||||
|
DecDCTout((u_long*)strEnv.ImgBuff_ptr[strEnv.ImgID], strEnv.slice.w*strEnv.slice.h/2);
|
||||||
|
|
||||||
|
} else { // Frame has been decoded completely
|
||||||
|
|
||||||
|
// Set the FrameDone flag
|
||||||
|
strEnv.FrameDone = 1;
|
||||||
|
|
||||||
|
// Switch display buffers
|
||||||
|
strEnv.RectID = strEnv.RectID? 0: 1;
|
||||||
|
strEnv.slice.x = strEnv.rect[strEnv.RectID].x;
|
||||||
|
strEnv.slice.y = strEnv.rect[strEnv.RectID].y;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
// Transfer the slice into VRAM
|
||||||
|
LoadImage(&TransferRect, (u_long *)strEnv.ImgBuff_ptr[id]);
|
||||||
|
|
||||||
|
}
|
||||||
|
static void strNextVlc(STRENV *strEnv) {
|
||||||
|
|
||||||
|
/*
|
||||||
|
Performs VLC decoding and grabs a frame from the stream.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int cnt=WAIT_TIME;
|
||||||
|
u_long *next;
|
||||||
|
u_long *strNext();
|
||||||
|
|
||||||
|
// Grab a frame from the stream
|
||||||
|
while ((next = strNext(strEnv)) == 0) {
|
||||||
|
|
||||||
|
if (--cnt == 0) // Timeout handler
|
||||||
|
return;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
// Switch VLC buffers
|
||||||
|
strEnv->VlcID = strEnv->VlcID? 0: 1;
|
||||||
|
|
||||||
|
// Decode the VLC
|
||||||
|
DecDCTvlc(next, strEnv->VlcBuff_ptr[strEnv->VlcID]);
|
||||||
|
|
||||||
|
// Free the ring buffer
|
||||||
|
StFreeRing(next);
|
||||||
|
|
||||||
|
}
|
||||||
|
static u_long *strNext(STRENV *strEnv) {
|
||||||
|
|
||||||
|
/*
|
||||||
|
Grabs a frame of video from the stream.
|
||||||
|
*/
|
||||||
|
|
||||||
|
u_long *addr;
|
||||||
|
StHEADER *sector;
|
||||||
|
int cnt = WAIT_TIME;
|
||||||
|
|
||||||
|
// Grab a frame
|
||||||
|
while (StGetNext((u_long **)&addr,(u_long **)§or)) {
|
||||||
|
|
||||||
|
if (--cnt == 0) // Timeout handler
|
||||||
|
return(0);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
// If the frame's number has reached number of frames the video has,
|
||||||
|
// set the strPlayDone flag.
|
||||||
|
if (sector->frameCount >= strNumFrames)
|
||||||
|
strPlayDone = 1;
|
||||||
|
|
||||||
|
|
||||||
|
// if the resolution is differ to previous frame, clear frame buffer
|
||||||
|
if (strFrameWidth != sector->width || strFrameHeight != sector->height) {
|
||||||
|
|
||||||
|
RECT rect;
|
||||||
|
setRECT(&rect, 0, 0, strScreenWidth * PPW, strScreenHeight*2);
|
||||||
|
ClearImage(&rect, 0, 0, 0);
|
||||||
|
|
||||||
|
strFrameWidth = sector->width;
|
||||||
|
strFrameHeight = sector->height;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// set STRENV according to the data on the STR format
|
||||||
|
strEnv->rect[0].w = strEnv->rect[1].w = strFrameWidth*PPW;
|
||||||
|
strEnv->rect[0].h = strEnv->rect[1].h = strFrameHeight;
|
||||||
|
strEnv->slice.h = strFrameHeight;
|
||||||
|
|
||||||
|
return(addr);
|
||||||
|
|
||||||
|
}
|
||||||
|
static void strSync(STRENV *strEnv, int mode) {
|
||||||
|
|
||||||
|
/*
|
||||||
|
Waits for the frame to finish decoding.
|
||||||
|
*/
|
||||||
|
|
||||||
|
u_long cnt = WAIT_TIME;
|
||||||
|
|
||||||
|
// Wait for the frame to finish decoding
|
||||||
|
while (strEnv->FrameDone == 0) {
|
||||||
|
if (--cnt == 0) { // Timeout handler
|
||||||
|
// If a timeout occurs, force switching buffers
|
||||||
|
#ifdef DEBUG
|
||||||
|
printf("ERROR: A frame cannot be played!\n");
|
||||||
|
#endif
|
||||||
|
strEnv->FrameDone = 1;
|
||||||
|
strEnv->RectID = strEnv->RectID? 0: 1;
|
||||||
|
strEnv->slice.x = strEnv->rect[strEnv->RectID].x;
|
||||||
|
strEnv->slice.y = strEnv->rect[strEnv->RectID].y;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
strEnv->FrameDone = 0;
|
||||||
|
|
||||||
|
}
|
||||||
|
static void strKickCD(CdlLOC *loc) {
|
||||||
|
|
||||||
|
/*
|
||||||
|
Begins CD streaming.
|
||||||
|
*/
|
||||||
|
|
||||||
|
u_char param=CdlModeSpeed;
|
||||||
|
|
||||||
|
loop:
|
||||||
|
|
||||||
|
// Seek to the STR file to play
|
||||||
|
while (CdControl(CdlSetloc, (u_char *)loc, 0) == 0);
|
||||||
|
while (CdControl(CdlSetmode, ¶m, 0) == 0);
|
||||||
|
|
||||||
|
VSync(3); // Wait for 3 screen cycles before changing drive speed
|
||||||
|
|
||||||
|
// Start streaming
|
||||||
|
if(CdRead2(CdlModeStream|CdlModeSpeed|CdlModeRT) == 0)
|
||||||
|
goto loop; // If it fails, try again
|
||||||
|
|
||||||
|
}
|
||||||
4
hello_strplay/system.cnf
Normal file
4
hello_strplay/system.cnf
Normal file
@ -0,0 +1,4 @@
|
|||||||
|
BOOT=cdrom:\SCES_313.37;1
|
||||||
|
TCB=4
|
||||||
|
EVENT=10
|
||||||
|
STACK=801FFFF0
|
||||||
Loading…
Reference in New Issue
Block a user