/
ygles.c
executable file
·2476 lines (2054 loc) · 71 KB
/
ygles.c
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/* Copyright 2005-2006 Guillaume Duhamel
Copyright 2005-2006 Theo Berkau
Copyright 2011-2015 Shinya Miyamoto(devmiyax)
This file is part of Yabause.
Yabause 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.
Yabause 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 Yabause; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_LIBGL
#include <stdlib.h>
#include <math.h>
#include "ygl.h"
#include "yui.h"
#include "vidshared.h"
#include "debug.h"
static int YglCalcTextureQ( float *pnts,float *q);
#define PI 3.1415926535897932384626433832795f
#define ATLAS_BIAS (0.025f)
void YglScalef(YglMatrix *result, GLfloat sx, GLfloat sy, GLfloat sz)
{
result->m[0][0] *= sx;
result->m[0][1] *= sx;
result->m[0][2] *= sx;
result->m[0][3] *= sx;
result->m[1][0] *= sy;
result->m[1][1] *= sy;
result->m[1][2] *= sy;
result->m[1][3] *= sy;
result->m[2][0] *= sz;
result->m[2][1] *= sz;
result->m[2][2] *= sz;
result->m[2][3] *= sz;
}
void YglTranslatef(YglMatrix *result, GLfloat tx, GLfloat ty, GLfloat tz)
{
result->m[0][3] += (result->m[0][0] * tx + result->m[0][1] * ty + result->m[0][2] * tz);
result->m[1][3] += (result->m[1][0] * tx + result->m[1][1] * ty + result->m[1][2] * tz);
result->m[2][3] += (result->m[2][0] * tx + result->m[2][1] * ty + result->m[2][2] * tz);
result->m[3][3] += (result->m[3][0] * tx + result->m[3][1] * ty + result->m[3][2] * tz);
}
void YglRotatef(YglMatrix *result, GLfloat angle, GLfloat x, GLfloat y, GLfloat z)
{
GLfloat sinAngle, cosAngle;
GLfloat mag = sqrtf(x * x + y * y + z * z);
sinAngle = sinf ( angle * PI / 180.0f );
cosAngle = cosf ( angle * PI / 180.0f );
if ( mag > 0.0f )
{
GLfloat xx, yy, zz, xy, yz, zx, xs, ys, zs;
GLfloat oneMinusCos;
YglMatrix rotMat;
x /= mag;
y /= mag;
z /= mag;
xx = x * x;
yy = y * y;
zz = z * z;
xy = x * y;
yz = y * z;
zx = z * x;
xs = x * sinAngle;
ys = y * sinAngle;
zs = z * sinAngle;
oneMinusCos = 1.0f - cosAngle;
rotMat.m[0][0] = (oneMinusCos * xx) + cosAngle;
rotMat.m[0][1] = (oneMinusCos * xy) - zs;
rotMat.m[0][2] = (oneMinusCos * zx) + ys;
rotMat.m[0][3] = 0.0F;
rotMat.m[1][0] = (oneMinusCos * xy) + zs;
rotMat.m[1][1] = (oneMinusCos * yy) + cosAngle;
rotMat.m[1][2] = (oneMinusCos * yz) - xs;
rotMat.m[1][3] = 0.0F;
rotMat.m[2][0] = (oneMinusCos * zx) - ys;
rotMat.m[2][1] = (oneMinusCos * yz) + xs;
rotMat.m[2][2] = (oneMinusCos * zz) + cosAngle;
rotMat.m[2][3] = 0.0F;
rotMat.m[3][0] = 0.0F;
rotMat.m[3][1] = 0.0F;
rotMat.m[3][2] = 0.0F;
rotMat.m[3][3] = 1.0F;
YglMatrixMultiply( result, &rotMat, result );
}
}
void YglFrustum(YglMatrix *result, float left, float right, float bottom, float top, float nearZ, float farZ)
{
float deltaX = right - left;
float deltaY = top - bottom;
float deltaZ = farZ - nearZ;
YglMatrix frust;
if ( (nearZ <= 0.0f) || (farZ <= 0.0f) ||
(deltaX <= 0.0f) || (deltaY <= 0.0f) || (deltaZ <= 0.0f) )
return;
frust.m[0][0] = 2.0f * nearZ / deltaX;
frust.m[0][1] = frust.m[0][2] = frust.m[0][3] = 0.0f;
frust.m[1][1] = 2.0f * nearZ / deltaY;
frust.m[1][0] = frust.m[1][2] = frust.m[1][3] = 0.0f;
frust.m[2][0] = (right + left) / deltaX;
frust.m[2][1] = (top + bottom) / deltaY;
frust.m[2][2] = -(nearZ + farZ) / deltaZ;
frust.m[2][3] = -1.0f;
frust.m[3][2] = -2.0f * nearZ * farZ / deltaZ;
frust.m[3][0] = frust.m[3][1] = frust.m[3][3] = 0.0f;
YglMatrixMultiply(result, &frust, result);
}
void YglPerspective(YglMatrix *result, float fovy, float aspect, float nearZ, float farZ)
{
GLfloat frustumW, frustumH;
frustumH = tanf( fovy / 360.0f * PI ) * nearZ;
frustumW = frustumH * aspect;
YglFrustum( result, -frustumW, frustumW, -frustumH, frustumH, nearZ, farZ );
}
void YglOrtho(YglMatrix *result, float left, float right, float bottom, float top, float nearZ, float farZ)
{
float deltaX = right - left;
float deltaY = top - bottom;
float deltaZ = farZ - nearZ;
YglMatrix ortho;
if ( (deltaX == 0.0f) || (deltaY == 0.0f) || (deltaZ == 0.0f) )
return;
YglLoadIdentity(&ortho);
ortho.m[0][0] = 2.0f / deltaX;
ortho.m[0][3] = -(right + left) / deltaX;
ortho.m[1][1] = 2.0f / deltaY;
ortho.m[1][3] = -(top + bottom) / deltaY;
ortho.m[2][2] = -2.0f / deltaZ;
ortho.m[2][3] = -(nearZ + farZ) / deltaZ;
YglMatrixMultiply(result, &ortho, result);
}
void YglTransform(YglMatrix *mtx, float * inXyz, float * outXyz )
{
outXyz[0] = inXyz[0] * mtx->m[0][0] + inXyz[0] * mtx->m[0][1] + inXyz[0] * mtx->m[0][2] + mtx->m[0][3];
outXyz[1] = inXyz[0] * mtx->m[1][0] + inXyz[0] * mtx->m[1][1] + inXyz[0] * mtx->m[1][2] + mtx->m[1][3];
outXyz[2] = inXyz[0] * mtx->m[2][0] + inXyz[0] * mtx->m[2][1] + inXyz[0] * mtx->m[2][2] + mtx->m[2][3];
}
void YglMatrixMultiply(YglMatrix *result, YglMatrix *srcA, YglMatrix *srcB)
{
YglMatrix tmp;
int i;
for (i=0; i<4; i++)
{
tmp.m[i][0] = (srcA->m[i][0] * srcB->m[0][0]) +
(srcA->m[i][1] * srcB->m[1][0]) +
(srcA->m[i][2] * srcB->m[2][0]) +
(srcA->m[i][3] * srcB->m[3][0]) ;
tmp.m[i][1] = (srcA->m[i][0] * srcB->m[0][1]) +
(srcA->m[i][1] * srcB->m[1][1]) +
(srcA->m[i][2] * srcB->m[2][1]) +
(srcA->m[i][3] * srcB->m[3][1]) ;
tmp.m[i][2] = (srcA->m[i][0] * srcB->m[0][2]) +
(srcA->m[i][1] * srcB->m[1][2]) +
(srcA->m[i][2] * srcB->m[2][2]) +
(srcA->m[i][3] * srcB->m[3][2]) ;
tmp.m[i][3] = (srcA->m[i][0] * srcB->m[0][3]) +
(srcA->m[i][1] * srcB->m[1][3]) +
(srcA->m[i][2] * srcB->m[2][3]) +
(srcA->m[i][3] * srcB->m[3][3]) ;
}
memcpy(result, &tmp, sizeof(YglMatrix));
}
void YglLoadIdentity(YglMatrix *result)
{
memset(result, 0x0, sizeof(YglMatrix));
result->m[0][0] = 1.0f;
result->m[1][1] = 1.0f;
result->m[2][2] = 1.0f;
result->m[3][3] = 1.0f;
}
YglTextureManager * YglTM;
Ygl * _Ygl;
typedef struct
{
float s, t, r, q;
} texturecoordinate_struct;
extern int GlHeight;
extern int GlWidth;
extern int vdp1cor;
extern int vdp1cog;
extern int vdp1cob;
#define STD_Q2 (1.0f)
#define EPS (1e-10)
#define EQ(a,b) (abs((a)-(b)) < EPS)
#define IS_ZERO(a) ( (a) < EPS && (a) > -EPS)
// AXB = |A||B|sin
static INLINE float cross2d( float veca[2], float vecb[2] )
{
return (veca[0]*vecb[1])-(vecb[0]*veca[1]);
}
/*-----------------------------------------
b1+--+ a1
/ / \
/ / \
a2+-+-----+b2
ans
get intersection point for opssite edge.
--------------------------------------------*/
int FASTCALL YglIntersectionOppsiteEdge(float * a1, float * a2, float * b1, float * b2, float * out )
{
float veca[2];
float vecb[2];
float vecc[2];
float d1;
float d2;
veca[0]=a2[0]-a1[0];
veca[1]=a2[1]-a1[1];
vecb[0]=b1[0]-a1[0];
vecb[1]=b1[1]-a1[1];
vecc[0]=b2[0]-a1[0];
vecc[1]=b2[1]-a1[1];
d1 = cross2d(vecb,vecc);
if( IS_ZERO(d1) ) return -1;
d2 = cross2d(vecb,veca);
out[0] = a1[0]+vecc[0]*d2/d1;
out[1] = a1[1]+vecc[1]*d2/d1;
return 0;
}
int YglCalcTextureQ(
float *pnts,
float *q
)
{
float p1[2],p2[2],p3[2],p4[2],o[2];
float q1, q3, q4, qw;
float dx, w;
float ww;
// fast calculation for triangle
if (( pnts[2*0+0] == pnts[2*1+0] ) && ( pnts[2*0+1] == pnts[2*1+1] )) {
q[0] = 1.0f;
q[1] = 1.0f;
q[2] = 1.0f;
q[3] = 1.0f;
return 0;
} else if (( pnts[2*1+0] == pnts[2*2+0] ) && ( pnts[2*1+1] == pnts[2*2+1] )) {
q[0] = 1.0f;
q[1] = 1.0f;
q[2] = 1.0f;
q[3] = 1.0f;
return 0;
} else if (( pnts[2*2+0] == pnts[2*3+0] ) && ( pnts[2*2+1] == pnts[2*3+1] )) {
q[0] = 1.0f;
q[1] = 1.0f;
q[2] = 1.0f;
q[3] = 1.0f;
return 0;
} else if (( pnts[2*3+0] == pnts[2*0+0] ) && ( pnts[2*3+1] == pnts[2*0+1] )) {
q[0] = 1.0f;
q[1] = 1.0f;
q[2] = 1.0f;
q[3] = 1.0f;
return 0;
}
p1[0]=pnts[0];
p1[1]=pnts[1];
p2[0]=pnts[2];
p2[1]=pnts[3];
p3[0]=pnts[4];
p3[1]=pnts[5];
p4[0]=pnts[6];
p4[1]=pnts[7];
// calcurate Q1
if( YglIntersectionOppsiteEdge( p3, p1, p2, p4, o ) == 0 )
{
dx = o[0]-p1[0];
if( !IS_ZERO(dx) )
{
w = p3[0]-p2[0];
if( !IS_ZERO(w) )
q1 = fabs(dx/w);
else
q1 = 0.0f;
}else{
w = p3[1] - p2[1];
if ( !IS_ZERO(w) )
{
ww = ( o[1] - p1[1] );
if ( !IS_ZERO(ww) )
q1 = fabs(ww / w);
else
q1 = 0.0f;
} else {
q1 = 0.0f;
}
}
}else{
q1 = 1.0f;
}
/* q2 = 1.0f; */
// calcurate Q3
if( YglIntersectionOppsiteEdge( p1, p3, p2,p4, o ) == 0 )
{
dx = o[0]-p3[0];
if( !IS_ZERO(dx) )
{
w = p1[0]-p2[0];
if( !IS_ZERO(w) )
q3 = fabs(dx/w);
else
q3 = 0.0f;
}else{
w = p1[1] - p2[1];
if ( !IS_ZERO(w) )
{
ww = ( o[1] - p3[1] );
if ( !IS_ZERO(ww) )
q3 = fabs(ww / w);
else
q3 = 0.0f;
} else {
q3 = 0.0f;
}
}
}else{
q3 = 1.0f;
}
// calcurate Q4
if( YglIntersectionOppsiteEdge( p3, p1, p4, p2, o ) == 0 )
{
dx = o[0]-p1[0];
if( !IS_ZERO(dx) )
{
w = p3[0]-p4[0];
if( !IS_ZERO(w) )
qw = fabs(dx/w);
else
qw = 0.0f;
}else{
w = p3[1] - p4[1];
if ( !IS_ZERO(w) )
{
ww = ( o[1] - p1[1] );
if ( !IS_ZERO(ww) )
qw = fabs(ww / w);
else
qw = 0.0f;
} else {
qw = 0.0f;
}
}
if ( !IS_ZERO(qw) )
{
w = qw / q1;
}
else
{
w = 0.0f;
}
if ( IS_ZERO(w) ) {
q4 = 1.0f;
} else {
q4 = 1.0f / w;
}
}else{
q4 = 1.0f;
}
qw = q1;
if ( qw < 1.0f ) /* q2 = 1.0f */
qw = 1.0f;
if ( qw < q3 )
qw = q3;
if ( qw < q4 )
qw = q4;
if ( 1.0f != qw )
{
qw = 1.0f / qw;
q[0] = q1 * qw;
q[1] = 1.0f * qw;
q[2] = q3 * qw;
q[3] = q4 * qw;
}
else
{
q[0] = q1;
q[1] = 1.0f;
q[2] = q3;
q[3] = q4;
}
return 0;
}
//////////////////////////////////////////////////////////////////////////////
void YglTMInit(unsigned int w, unsigned int h) {
YglTM = (YglTextureManager *) malloc(sizeof(YglTextureManager));
YglTM->texture = (unsigned int *) malloc(sizeof(unsigned int) * w * h);
memset(YglTM->texture,0,sizeof(unsigned int) * w * h);
YglTM->width = w;
YglTM->height = h;
YglTMReset();
}
//////////////////////////////////////////////////////////////////////////////
void YglTMDeInit(void) {
//free(YglTM->texture);
if( YglTM->texture != NULL ) {
glUnmapBuffer (GL_PIXEL_UNPACK_BUFFER);
YglTM->texture = NULL;
}
free(YglTM);
}
//////////////////////////////////////////////////////////////////////////////
void YglTMReset(void) {
YglTM->currentX = 0;
YglTM->currentY = 0;
YglTM->yMax = 0;
}
//////////////////////////////////////////////////////////////////////////////
void YglTMAllocate(YglTexture * output, unsigned int w, unsigned int h, unsigned int * x, unsigned int * y) {
if ((YglTM->height - YglTM->currentY) < h) {
fprintf(stderr, "can't allocate texture: %dx%d\n", w, h);
*x = *y = 0;
output->w = 0;
output->textdata = YglTM->texture;
return;
}
if ((YglTM->width - YglTM->currentX) >= w) {
*x = YglTM->currentX;
*y = YglTM->currentY;
output->w = YglTM->width - w;
output->textdata = YglTM->texture + YglTM->currentY * YglTM->width + YglTM->currentX;
YglTM->currentX += w;
//YglTM->currentX += 0x0F;
//YglTM->currentX &= ~(0x0F);
if ((YglTM->currentY + h) > YglTM->yMax)
{
YglTM->yMax = YglTM->currentY + h;
//YglTM->yMax += 0x0F;
//YglTM->yMax &= ~(0x0F);
}
}
else {
YglTM->currentX = 0;
YglTM->currentY = YglTM->yMax;
YglTMAllocate(output, w, h, x, y);
}
}
void VIDOGLVdp1ReadFrameBuffer(u32 type, u32 addr, void * out) {
if (_Ygl->smallfbo == 0) {
glGenFramebuffers(1, &_Ygl->smallfbo);
YGLLOG("glGenFramebuffers %d\n", _Ygl->smallfbo );
glGenTextures(1, &_Ygl->smallfbotex);
YGLLOG("glGenTextures %d\n",_Ygl->smallfbotex );
glBindTexture(GL_TEXTURE_2D, _Ygl->smallfbotex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, _Ygl->rwidth, _Ygl->rheight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
YGLLOG("glTexImage2D %d\n",_Ygl->smallfbotex );
glBindFramebuffer(GL_FRAMEBUFFER, _Ygl->smallfbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _Ygl->smallfbotex, 0);
glGenBuffers(1, &_Ygl->vdp1pixelBufferID);
YGLLOG("glGenBuffers %d\n",_Ygl->vdp1pixelBufferID);
if( _Ygl->vdp1pixelBufferID == 0 ){
YGLLOG("Fail to glGenBuffers %X",glGetError());
}
glBindBuffer(GL_PIXEL_PACK_BUFFER, _Ygl->vdp1pixelBufferID);
glBufferData(GL_PIXEL_PACK_BUFFER, _Ygl->rwidth*_Ygl->rheight * 4, NULL, GL_DYNAMIC_READ);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
if (_Ygl->pFrameBuffer == NULL){
#if 0
glBindFramebuffer(GL_FRAMEBUFFER, _Ygl->vdp1fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _Ygl->vdp1FrameBuff[((_Ygl->drawframe ^ 0x01) & 0x01)], 0);
glBindFramebuffer(GL_READ_FRAMEBUFFER, _Ygl->vdp1fbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, _Ygl->smallfbo);
glBlitFramebuffer(0, 0, GlWidth, GlHeight, 0, 0, _Ygl->rwidth, _Ygl->rheight, GL_COLOR_BUFFER_BIT, GL_LINEAR);
#else
YglBlitFramebuffer(_Ygl->vdp1FrameBuff[_Ygl->readframe], _Ygl->smallfbo, (float)_Ygl->rwidth / (float)GlWidth, (float)_Ygl->rheight / (float)GlHeight);
#endif
glBindFramebuffer(GL_FRAMEBUFFER, _Ygl->smallfbo);
glBindBuffer(GL_PIXEL_PACK_BUFFER, _Ygl->vdp1pixelBufferID);
YGLLOG("glReadPixels %d\n",_Ygl->vdp1pixelBufferID);
glReadPixels(0, 0, _Ygl->rwidth, _Ygl->rheight, GL_RGBA, GL_UNSIGNED_BYTE, 0);
YGLLOG("VIDOGLVdp1ReadFrameBuffer %d\n", _Ygl->drawframe);
_Ygl->pFrameBuffer = (unsigned int *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0, _Ygl->rwidth * _Ygl->rheight * 4, GL_MAP_READ_BIT);
glBindFramebuffer(GL_FRAMEBUFFER,0);
if (_Ygl->pFrameBuffer==NULL)
{
switch (type)
{
case 1:
*(u16*)out = 0x0000;
break;
case 2:
*(u32*)out = 0x00000000;
break;
}
return;
}
}
{
const int Line = (addr >> 10); // *((float)(GlHeight) / (float)_Ygl->rheight);
const int Pix = ((addr & 0x3FF) >> 1); // *((float)(GlWidth) / (float)_Ygl->rwidth);
const int index = (_Ygl->rheight - 1 - Line)*(_Ygl->rwidth* 4) + Pix * 4;
switch (type)
{
case 1:
{
u8 r = *((u8*)(_Ygl->pFrameBuffer) + index);
u8 g = *((u8*)(_Ygl->pFrameBuffer) + index + 1);
u8 b = *((u8*)(_Ygl->pFrameBuffer) + index + 2);
//*(u16*)out = ((val & 0x1f) << 10) | ((val >> 1) & 0x3e0) | ((val >> 11) & 0x1F) | 0x8000;
*(u16*)out = ((r >> 3) & 0x1f) | (((g >> 3) & 0x1f) << 5) | (((b >> 3) & 0x1F)<<10) | 0x8000;
}
break;
case 2:
{
u32 r = *((u8*)(_Ygl->pFrameBuffer) + index);
u32 g = *((u8*)(_Ygl->pFrameBuffer) + index + 1);
u32 b = *((u8*)(_Ygl->pFrameBuffer) + index + 2);
u32 r2 = *((u8*)(_Ygl->pFrameBuffer) + index+4);
u32 g2 = *((u8*)(_Ygl->pFrameBuffer) + index + 5);
u32 b2 = *((u8*)(_Ygl->pFrameBuffer) + index + 6);
if (r != 0)
{
int a=0;
}
/* BBBBBGGGGGRRRRR */
//*(u16*)out = ((val & 0x1f) << 10) | ((val >> 1) & 0x3e0) | ((val >> 11) & 0x1F) | 0x8000;
*(u32*)out = (((r2 >> 3) & 0x1f) | (((g2 >> 3) & 0x1f) << 5) | (((b2 >> 3) & 0x1F)<<10) | 0x8000) |
((((r >> 3) & 0x1f) | (((g >> 3) & 0x1f) << 5) | (((b >> 3) & 0x1F)<<10) | 0x8000) << 16) ;
}
break;
}
}
}
//////////////////////////////////////////////////////////////////////////////
int YglGLInit(int width, int height) {
int status;
GLuint error;
const char* extensions;
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
YglLoadIdentity(&_Ygl->mtxModelView);
YglOrtho(&_Ygl->mtxModelView,0.0f, 320.0f, 224.0f, 0.0f, 10.0f, 0.0f);
YglLoadIdentity(&_Ygl->mtxTexture);
YglOrtho(&_Ygl->mtxTexture,-width, width, -height, height, 1.0f, 0.0f );
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_DEPTH_TEST);
glDepthFunc(GL_GEQUAL);
glClearDepthf(0.0f);
glCullFace(GL_FRONT_AND_BACK);
glDisable(GL_CULL_FACE);
glDisable(GL_DITHER);
glGetError();
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
YGLLOG("YglGLInit(%d,%d)\n",GlWidth,GlHeight );
if( _Ygl->texture == 0 )
glGenTextures(1, &_Ygl->texture);
glGenBuffers(1, &_Ygl->pixelBufferID);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, _Ygl->pixelBufferID);
glBufferData(GL_PIXEL_UNPACK_BUFFER, width * height * 4, NULL, GL_STREAM_DRAW);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
glBindTexture(GL_TEXTURE_2D, _Ygl->texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
if( (error = glGetError()) != GL_NO_ERROR )
{
YGLLOG("Fail to init YglTM->texture %04X", error);
return -1;
}
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D, _Ygl->texture);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, _Ygl->pixelBufferID);
YglTM->texture = (unsigned int *)glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, width * height * 4, GL_MAP_WRITE_BIT|GL_MAP_INVALIDATE_BUFFER_BIT);
if( (error = glGetError()) != GL_NO_ERROR )
{
YGLLOG("Fail to init YglTM->texture %04X", error);
return -1;
}
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
if( _Ygl->vdp1FrameBuff != NULL ) // Why is this check even here? It will always be non-zero
glDeleteTextures(2,_Ygl->vdp1FrameBuff);
glGenTextures(2,_Ygl->vdp1FrameBuff);
glBindTexture(GL_TEXTURE_2D,_Ygl->vdp1FrameBuff[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, GlWidth, GlHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE,NULL);
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D,_Ygl->vdp1FrameBuff[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, GlWidth, GlHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE,NULL);
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
_Ygl->pFrameBuffer = NULL;
extensions = (const char*)glGetString(GL_EXTENSIONS);
if( extensions != NULL && strstr(extensions, "packed_depth_stencil") != NULL )
{
if( _Ygl->rboid_depth != 0 ) glDeleteRenderbuffers(1,&_Ygl->rboid_depth);
glGenRenderbuffers(1, &_Ygl->rboid_depth);
glBindRenderbuffer(GL_RENDERBUFFER,_Ygl->rboid_depth);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, GlWidth, GlHeight);
_Ygl->rboid_stencil = _Ygl->rboid_depth;
}else{
if( _Ygl->rboid_depth != 0 ) glDeleteRenderbuffers(1,&_Ygl->rboid_depth);
glGenRenderbuffers(1, &_Ygl->rboid_depth);
glBindRenderbuffer(GL_RENDERBUFFER,_Ygl->rboid_depth);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, GlWidth, GlHeight);
if( _Ygl->rboid_stencil != 0 ) glDeleteRenderbuffers(1,&_Ygl->rboid_stencil);
glGenRenderbuffers(1, &_Ygl->rboid_stencil);
glBindRenderbuffer(GL_RENDERBUFFER,_Ygl->rboid_stencil);
glRenderbufferStorage(GL_RENDERBUFFER, GL_STENCIL_INDEX8, GlWidth, GlHeight);
}
glBindFramebuffer(GL_FRAMEBUFFER, _Ygl->vdp1fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _Ygl->vdp1FrameBuff[0], 0);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, _Ygl->rboid_depth);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, _Ygl->rboid_stencil);
status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if( status != GL_FRAMEBUFFER_COMPLETE )
{
YGLLOG("YglGLInit:Framebuffer status = %08X\n", status );
}
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
glBindFramebuffer(GL_FRAMEBUFFER, _Ygl->vdp1fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _Ygl->vdp1FrameBuff[1], 0);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, _Ygl->rboid_depth);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, _Ygl->rboid_stencil);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
glBindFramebuffer(GL_FRAMEBUFFER, 0 );
glBindTexture(GL_TEXTURE_2D,_Ygl->texture);
return 0;
}
//////////////////////////////////////////////////////////////////////////////
int YglScreenInit(int r, int g, int b, int d) {
return 0;
/*
YuiSetVideoAttribute(RED_SIZE, r);
YuiSetVideoAttribute(GREEN_SIZE, g);
YuiSetVideoAttribute(BLUE_SIZE, b);
YuiSetVideoAttribute(DEPTH_SIZE, d);
return (YuiSetVideoMode(320, 224, 32, 0) == 0);
*/
}
void YuiSetVideoAttribute(int type, int val){return;}
//////////////////////////////////////////////////////////////////////////////
int YglInit(int width, int height, unsigned int depth) {
unsigned int i,j;
GLuint status;
void * dataPointer=NULL;
const char* extensions;
YGLLOG("YglInit(%d,%d,%d);",width,height,depth );
YglTMInit(width, height);
if ((_Ygl = (Ygl *) malloc(sizeof(Ygl))) == NULL)
return -1;
memset(_Ygl,0,sizeof(Ygl));
_Ygl->depth = depth;
_Ygl->rwidth = 320;
_Ygl->rheight = 240;
if ((_Ygl->levels = (YglLevel *) malloc(sizeof(YglLevel) * (depth+1))) == NULL)
return -1;
memset(_Ygl->levels,0,sizeof(YglLevel) * (depth+1) );
for(i = 0;i < (depth+1) ;i++) {
_Ygl->levels[i].prgcurrent = 0;
_Ygl->levels[i].uclipcurrent = 0;
_Ygl->levels[i].prgcount = 1;
_Ygl->levels[i].prg = (YglProgram*)malloc(sizeof(YglProgram)*_Ygl->levels[i].prgcount);
memset( _Ygl->levels[i].prg,0,sizeof(YglProgram)*_Ygl->levels[i].prgcount);
if( _Ygl->levels[i].prg == NULL ) return -1;
for(j = 0;j < _Ygl->levels[i].prgcount; j++) {
_Ygl->levels[i].prg[j].prg=0;
_Ygl->levels[i].prg[j].currentQuad = 0;
_Ygl->levels[i].prg[j].maxQuad = 12 * 2000;
if ((_Ygl->levels[i].prg[j].quads = (float *) malloc(_Ygl->levels[i].prg[j].maxQuad * sizeof(float))) == NULL)
return -1;
if ((_Ygl->levels[i].prg[j].textcoords = (float *) malloc(_Ygl->levels[i].prg[j].maxQuad * sizeof(float) * 2)) == NULL)
return -1;
if ((_Ygl->levels[i].prg[j].vertexAttribute = (float *) malloc(_Ygl->levels[i].prg[j].maxQuad * sizeof(float)*2)) == NULL)
return -1;
}
}
#if defined(_USEGLEW_)
glewInit();
#endif
YglGLInit(width, height);
if( YglProgramInit() != 0 )
{
YuiErrorMsg("Fail to YglProgramInit\n");
return -1;
}
_Ygl->drawframe = 0;
_Ygl->readframe = 1;
glGenTextures(2,_Ygl->vdp1FrameBuff);
glBindTexture(GL_TEXTURE_2D,_Ygl->vdp1FrameBuff[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, GlWidth, GlHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE,NULL);
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D,_Ygl->vdp1FrameBuff[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, GlWidth, GlHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE,NULL);
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
extensions = (const char*)glGetString(GL_EXTENSIONS);
if( extensions != NULL && strstr(extensions, "packed_depth_stencil") != NULL )
{
if( _Ygl->rboid_depth != 0 ) glDeleteRenderbuffers(1,&_Ygl->rboid_depth);
glGenRenderbuffers(1, &_Ygl->rboid_depth);
glBindRenderbuffer(GL_RENDERBUFFER,_Ygl->rboid_depth);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, GlWidth, GlHeight);
_Ygl->rboid_stencil = _Ygl->rboid_depth;
}else{
if( _Ygl->rboid_depth != 0 ) glDeleteRenderbuffers(1,&_Ygl->rboid_depth);
glGenRenderbuffers(1, &_Ygl->rboid_depth);
glBindRenderbuffer(GL_RENDERBUFFER,_Ygl->rboid_depth);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, GlWidth, GlHeight);
if( _Ygl->rboid_stencil != 0 ) glDeleteRenderbuffers(1,&_Ygl->rboid_stencil);
glGenRenderbuffers(1, &_Ygl->rboid_stencil);
glBindRenderbuffer(GL_RENDERBUFFER,_Ygl->rboid_stencil);
glRenderbufferStorage(GL_RENDERBUFFER, GL_STENCIL_INDEX8, GlWidth, GlHeight);
}
glGenFramebuffers(1,&_Ygl->vdp1fbo);
glBindFramebuffer(GL_FRAMEBUFFER, _Ygl->vdp1fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _Ygl->vdp1FrameBuff[0], 0);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, _Ygl->rboid_depth);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, _Ygl->rboid_stencil);
status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if( status != GL_FRAMEBUFFER_COMPLETE )
{
YGLLOG("YglInit: Framebuffer status = %08X\n", status );
return -1;
}
_Ygl->smallfbo = 0;
_Ygl->smallfbotex = 0;
glBindFramebuffer(GL_FRAMEBUFFER, 0 );
_Ygl->st = 0;
_Ygl->msglength = 0;
return 0;
}
//////////////////////////////////////////////////////////////////////////////
void YglDeInit(void) {
unsigned int i,j;
YglTMDeInit();
if (_Ygl)
{
if (_Ygl->levels)
{
for (i = 0; i < (_Ygl->depth+1); i++)
{
for (j = 0; j < _Ygl->levels[i].prgcount; j++)
{
if (_Ygl->levels[i].prg[j].quads)
free(_Ygl->levels[i].prg[j].quads);
if (_Ygl->levels[i].prg[j].textcoords)
free(_Ygl->levels[i].prg[j].textcoords);
if (_Ygl->levels[i].prg[j].vertexAttribute)
free(_Ygl->levels[i].prg[j].vertexAttribute);
}
free(_Ygl->levels[i].prg);
}
free(_Ygl->levels);
}
free(_Ygl);
}
}
void YglStartWindow( vdp2draw_struct * info, int win0, int logwin0, int win1, int logwin1, int mode )
{
YglLevel *level;
YglProgram *program;
level = &_Ygl->levels[info->priority];
YglProgramChange(level,PG_VDP2_STARTWINDOW);
program = &level->prg[level->prgcurrent];
program->bwin0 = win0;
program->logwin0 = logwin0;
program->bwin1 = win1;
program->logwin1 = logwin1;
program->winmode = mode;
}
void YglEndWindow( vdp2draw_struct * info )
{
YglLevel *level;
level = &_Ygl->levels[info->priority];
YglProgramChange(level,PG_VDP2_ENDWINDOW);
}
//////////////////////////////////////////////////////////////////////////////
YglProgram * YglGetProgram( YglSprite * input, int prg )
{
YglLevel *level;
YglProgram *program;
float checkval;
if (input->priority > 8) {
VDP1LOG("sprite with priority %d\n", input->priority);
return NULL;
}
level = &_Ygl->levels[input->priority];
level->blendmode |= (input->blendmode&0x03);
if( input->uclipmode != level->uclipcurrent )
{
if( input->uclipmode == 0x02 || input->uclipmode == 0x03 )
{
YglProgramChange(level,PG_VFP1_STARTUSERCLIP);
program = &level->prg[level->prgcurrent];
program->uClipMode = input->uclipmode;
if( level->ux1 != Vdp1Regs->userclipX1 || level->uy1 != Vdp1Regs->userclipY1 ||
level->ux2 != Vdp1Regs->userclipX2 || level->uy2 != Vdp1Regs->userclipY2 )
{
program->ux1=Vdp1Regs->userclipX1;
program->uy1=Vdp1Regs->userclipY1;
program->ux2=Vdp1Regs->userclipX2;
program->uy2=Vdp1Regs->userclipY2;
level->ux1=Vdp1Regs->userclipX1;
level->uy1=Vdp1Regs->userclipY1;
level->ux2=Vdp1Regs->userclipX2;
level->uy2=Vdp1Regs->userclipY2;
}else{
program->ux1=-1;
program->uy1=-1;