mirror of
https://github.com/aap/librw.git
synced 2024-11-27 06:05:42 +00:00
323 lines
7.6 KiB
C++
Executable File
323 lines
7.6 KiB
C++
Executable File
#include <kernel.h>
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#include <stdio.h>
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#include "ps2.h"
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#include "ee_regs.h"
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#include "gs.h"
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#include "gif.h"
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#include "math.h"
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#include "mesh.h"
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GIF_DECLARE_PACKET(gifDmaBuf, 256)
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struct GsState *gsCurState;
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void
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dumpdma(void)
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{
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int i;
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for (i = 0; i < gifDmaBuf_cur; i += 2)
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printf("%016lX %016lX\n", gifDmaBuf[i+1], gifDmaBuf[i]);
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}
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void
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gsDumpState(void)
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{
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struct GsState *g = gsCurState;
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printf("mode: %d\tinterlaced: %d\tframe: %d\n"
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"width,height: %d, %d\n"
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"startx, starty: %d %d\n"
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"dw, dh: %d %d\n"
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"magh, magv: %d %d\n"
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"xoff, yoff: %d %d\n"
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"xmax, ymax: %d %d\n",
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g->mode, g->interlaced, g->field,
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g->width, g->height,
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g->startx, g->starty,
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g->dw, g->dh,
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g->magh, g->magv,
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g->xoff, g->yoff,
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g->xmax, g->ymax);
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}
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void
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gsInitState(uint16 interlaced, uint16 mode, uint16 field)
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{
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struct GsState *g = gsCurState;
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int i;
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g->mode = mode;
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g->interlaced = interlaced;
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g->field = field;
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if(mode == PAL){
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g->width = 640;
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g->height = 256;
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g->startx = 680;
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g->starty = 37;
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g->dw = 2560;
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g->dh = 256;
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}else{
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g->width = 640;
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g->height = 224;
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g->startx = 652;
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g->starty = 26;
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g->dw = 2560;
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g->dh = 224;
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}
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if(interlaced == INTERLACED){
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if(field == FIELD)
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g->height *= 2;
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g->dh *= 2;
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g->starty = (g->starty-1)*2;
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}
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g->magh = 3;
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g->magv = 0;
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g->xoff = 2048<<4;
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g->yoff = 2048<<4;
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g->xmax = g->width - 1;
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g->ymax = g->height - 1;
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g->psm = PSMCT32;
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g->depth = 32;
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g->bpp = 4;
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// g->psm = PSMCT24;
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// g->depth = 24;
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// g->bpp = 4;
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g->zpsm = PSMCZ32;
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g->zdepth = 32;
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g->zbpp = 4;
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g->zmax = 0x0FFFFFFFF;
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g->currentMemPtr = 0;
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g->activeFb = 0;
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g->visibleFb = 0;
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g->ztest = 1;
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g->zfunc = ZTST_GREATER;
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g->blend.enable = 0;
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g->shadingmethod = IIP_GOURAUD;
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for(i = 0; i < 2; i++){
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g->fbAddr[i] = g->currentMemPtr;
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g->currentMemPtr += g->width*g->height*g->bpp;
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}
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g->zbAddr = g->currentMemPtr;
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g->currentMemPtr += g->width*g->height*g->zbpp;
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}
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void
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gsInit(void)
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{
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struct GsState *g = gsCurState;
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int addr0, addr1;
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g->visibleFb = 0;
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g->activeFb = 1;
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printf("%d %d\n", g->fbAddr[0], g->fbAddr[1]);
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addr0 = g->fbAddr[g->visibleFb]/4/2048;
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addr1 = g->fbAddr[g->activeFb]/4/2048;
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GS_RESET();
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__asm__("sync.p; nop");
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SET_REG64(GS_CSR, 0);
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GsPutIMR(0xff00);
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SetGsCrt(g->interlaced, g->mode, g->field);
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SET_REG64(GS_PMODE, MAKE_GS_PMODE(0, 1, 0, 1, 0, 0xFF));
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SET_REG64(GS_DISPFB2, MAKE_GS_DISPFB(addr0, g->width/64, g->psm, 0, 0));
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SET_REG64(GS_DISPFB1, MAKE_GS_DISPFB(addr0, g->width/64, g->psm, 0, 0));
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SET_REG64(GS_DISPLAY2, MAKE_GS_DISPLAY(g->startx, g->starty,
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g->magh, g->magv,
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g->dw-1, g->dh-1));
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SET_REG64(GS_DISPLAY1, MAKE_GS_DISPLAY(g->startx, g->starty,
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g->magh, g->magv,
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g->dw-1, g->dh-1));
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SET_REG64(GS_BGCOLOR, MAKE_GS_BGCOLOR(100, 100, 100));
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GIF_BEGIN_PACKET(gifDmaBuf);
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GIF_TAG(gifDmaBuf, 7, 1, 0, 0, 0, 1, 0x0e);
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GIF_DATA_AD(gifDmaBuf, GS_PRMODECONT, MAKE_GS_PRMODECONT(1));
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GIF_DATA_AD(gifDmaBuf, GS_FRAME_1,
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MAKE_GS_FRAME(addr1, g->width/64, g->psm, 0));
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GIF_DATA_AD(gifDmaBuf, GS_ZBUF_1,
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MAKE_GS_ZBUF(g->zbAddr/4/2048, g->zpsm, 0));
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GIF_DATA_AD(gifDmaBuf, GS_XYOFFSET_1,
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MAKE_GS_XYOFFSET(g->xoff, g->yoff));
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GIF_DATA_AD(gifDmaBuf, GS_SCISSOR_1,
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MAKE_GS_SCISSOR(0, g->xmax, 0, g->ymax));
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GIF_DATA_AD(gifDmaBuf, GS_TEST_1,
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MAKE_GS_TEST(0, 0, 0, 0, 0, 0, g->ztest, g->zfunc));
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GIF_DATA_AD(gifDmaBuf, GS_COLCLAMP, MAKE_GS_COLCLAMP(1));
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GIF_SEND_PACKET(gifDmaBuf);
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}
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void
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gsUpdateContext(void)
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{
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GsState *gs = gsCurState;
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GIF_BEGIN_PACKET(gifDmaBuf);
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GIF_TAG(gifDmaBuf, 2, 1, 0, 0, 0, 1, 0x0e);
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GIF_DATA_AD(gifDmaBuf, GS_TEST_1,
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MAKE_GS_TEST(0, 0, 0, 0, 0, 0, gs->ztest, gs->zfunc));
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GIF_DATA_AD(gifDmaBuf, GS_ALPHA_1,
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MAKE_GS_ALPHA(gs->blend.a, gs->blend.b, gs->blend.c,
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gs->blend.d, gs->blend.fix));
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GIF_SEND_PACKET(gifDmaBuf);
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}
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void
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gsPollVsynch(void)
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{
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volatile uint64 *csr = (uint64 *) GS_CSR;
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*csr &= 8;
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while(!(*csr & 8));
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}
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void
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gsFlip(int synch)
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{
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struct GsState *g = gsCurState;
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g->activeFb = (g->activeFb+1) & 1;
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g->visibleFb = (g->visibleFb+1) & 1;
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if(synch)
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gsPollVsynch();
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gsSelectActiveFb(g->activeFb);
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gsSelectVisibleFb(g->visibleFb);
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}
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void
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gsSelectActiveFb(int n)
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{
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struct GsState *g = gsCurState;
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int addr;
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addr = g->fbAddr[n]/4/2048;
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GIF_BEGIN_PACKET(gifDmaBuf);
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GIF_TAG(gifDmaBuf, 1, 1, 0, 0, 0, 1, 0x0e);
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GIF_DATA_AD(gifDmaBuf, GS_FRAME_1,
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MAKE_GS_FRAME(addr, g->width/64, g->psm, 0));
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GIF_SEND_PACKET(gifDmaBuf);
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}
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void
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gsSelectVisibleFb(int n)
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{
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struct GsState *g = gsCurState;
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int addr;
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addr = g->fbAddr[n]/4/2048;
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SET_REG64(GS_DISPFB2, MAKE_GS_DISPFB(addr, g->width/64, g->psm, 0, 0));
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}
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void
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gsClear(void)
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{
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struct GsState *gs = gsCurState;
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uint16 x, y;
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int r = gs->clearcol & 0xFF;
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int g = (gs->clearcol >> 8) & 0xFF;
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int b = (gs->clearcol >> 16) & 0xFF;
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int a = (gs->clearcol >> 24) & 0xFF;
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x = (gs->width << 4) + gs->xoff;
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y = (gs->height << 4) + gs->yoff;
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GIF_BEGIN_PACKET(gifDmaBuf);
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GIF_TAG(gifDmaBuf, 6, 1, 0, 0, 0, 1, 0x0e);
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/* clear z-buffer too */
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GIF_DATA_AD(gifDmaBuf, GS_TEST_1,
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MAKE_GS_TEST(0, 0, 0, 0, 0, 0, 1, ZTST_ALWAYS));
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GIF_DATA_AD(gifDmaBuf, GS_PRIM,
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MAKE_GS_PRIM(PRIM_SPRITE, 0, 0, 0, 0, 0, 0, 0, 0));
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GIF_DATA_AD(gifDmaBuf, GS_RGBAQ,
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MAKE_GS_RGBAQ(r, g, b, a, 0));
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GIF_DATA_AD(gifDmaBuf, GS_XYZ2, MAKE_GS_XYZ(0, 0, 0));
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GIF_DATA_AD(gifDmaBuf, GS_XYZ2, MAKE_GS_XYZ(x, y, 0));
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/* re-enable z-test */
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GIF_DATA_AD(gifDmaBuf, GS_TEST_1,
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MAKE_GS_TEST(0, 0, 0, 0, 0, 0, gs->ztest, gs->zfunc));
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GIF_SEND_PACKET(gifDmaBuf);
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}
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void
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gsNormalizedToScreen(float *v1, uint32 *v2)
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{
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struct GsState *g = gsCurState;
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uint64 d;
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d = g->zmax & 0xFFFFFFFF;
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v2[0] = (1.0f+v1[0])*g->width/2;
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v2[1] = (1.0f-v1[1])*g->height/2;
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v2[2] = (1.0f-v1[2])*d/2;
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}
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void
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drawrect(uint16 x1, uint16 y1, uint16 x2, uint16 y2, uint32 col)
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{
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struct GsState *gs = gsCurState;
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x1 = (x1<<4) + gs->xoff;
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y1 = (y1<<4) + gs->yoff;
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x2 = (x2<<4) + gs->xoff;
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y2 = (y2<<4) + gs->yoff;
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int r = col & 0xFF;
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int g = (col >> 8) & 0xFF;
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int b = (col >> 16) & 0xFF;
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int a = (col >> 24) & 0xFF;
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GIF_BEGIN_PACKET(gifDmaBuf);
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GIF_TAG(gifDmaBuf, 4, 1, 0, 0, 0, 1, 0x0e);
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GIF_DATA_AD(gifDmaBuf, GS_PRIM,
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MAKE_GS_PRIM(PRIM_SPRITE, 0, 0, 0,
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gs->blend.enable, 0, 0, 0, 0));
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GIF_DATA_AD(gifDmaBuf, GS_RGBAQ,
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MAKE_GS_RGBAQ(r, g, b, a, 0));
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GIF_DATA_AD(gifDmaBuf, GS_XYZ2, MAKE_GS_XYZ(x1, y1, 0));
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GIF_DATA_AD(gifDmaBuf, GS_XYZ2, MAKE_GS_XYZ(x2, y2, 0));
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GIF_SEND_PACKET(gifDmaBuf);
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}
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/*
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void
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drawdata(float *data, int vertexCount)
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{
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struct GsState *g = gsCurState;
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int i;
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float *verts, *colors;
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Vector4f vf;
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uint32 vi[3];
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uint8 c[4];
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verts = &data[0];
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colors = &data[vertexCount*3];
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GIF_BEGIN_PACKET(gifDmaBuf);
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GIF_TAG(gifDmaBuf, vertexCount, 1, 1,
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MAKE_GS_PRIM(PRIM_TRI,IIP_GOURAUD,0,0,0,0,0,0,0), 0, 2, 0x51);
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for (i = 0; i < vertexCount; i++) {
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vec4fCopy(vf, &verts[i*3]);
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vf[3] = 1.0f;
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matMultVec(mathModelViewMat, vf);
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matMultVec(mathProjectionMat, vf);
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vf[0] /= vf[3];
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vf[1] /= vf[3];
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vf[2] /= vf[3];
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gsNormalizedToScreen(vf, vi);
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vi[0] = ((vi[0]*16) + g->xoff) & 0xFFFF;
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vi[1] = ((vi[1]*16) + g->yoff) & 0xFFFF;
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c[0] = colors[i*4+0];
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c[1] = colors[i*4+1];
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c[2] = colors[i*4+2];
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c[3] = colors[i*4+3];
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GIF_DATA_RGBAQ(gifDmaBuf, c[0], c[1], c[2], c[3]);
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GIF_DATA_XYZ2(gifDmaBuf, vi[0], vi[1], vi[2], 0);
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}
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GIF_SEND_PACKET(gifDmaBuf);
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}
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*/
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