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gl2shim: refactoring

pull/2/head
mittorn 1 year ago committed by Alibek Omarov
parent
0341f96b70
commit
cf65a39b83
1 changed files with 150 additions and 140 deletions
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  1. 288
      ref/gl/gl2_shim/gl2_shim.c

288
ref/gl/gl2_shim/gl2_shim.c
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@ -131,6 +131,14 @@ static struct
uint64_t update; uint64_t update;
} gl2wrap_matrix; } gl2wrap_matrix;
static struct
{
qboolean alpha_test;
qboolean fog;
GLuint vbo;
GLuint tmu;
} gl2wrap_state;
//#define QUAD_BATCH //#define QUAD_BATCH
#ifdef QUAD_BATCH #ifdef QUAD_BATCH
@ -165,11 +173,6 @@ static const char *gl2wrap_attr_name[GL2_ATTR_MAX] =
"inTexCoord1", "inTexCoord1",
}; };
// HACK: borrow alpha test and fog flags from internal vitaGL state
static GLboolean alpha_test_state;
static GLboolean fogging;
static void (APIENTRY*rpglEnable)(GLenum e); static void (APIENTRY*rpglEnable)(GLenum e);
static void (APIENTRY*rpglDisable)(GLenum e); static void (APIENTRY*rpglDisable)(GLenum e);
static void (APIENTRY*rpglDrawElements )( GLenum mode, GLsizei count, GLenum type, const GLvoid *indices ); static void (APIENTRY*rpglDrawElements )( GLenum mode, GLsizei count, GLenum type, const GLvoid *indices );
@ -426,10 +429,73 @@ static gl2wrap_prog_t *GL2_SetProg( const GLuint flags )
#define TRIQUADS_SIZE GL2_MAX_VERTS / 4 * 6 #define TRIQUADS_SIZE GL2_MAX_VERTS / 4 * 6
static void GL2_InitTriQuads( void )
{
int i;
for( i = 0; i < (!!_pglDrawRangeElementsBaseVertex?1:4); i++ )
{
int j;
GLushort triquads_array[TRIQUADS_SIZE * 6];
for( j = 0; j < TRIQUADS_SIZE; j++ )
{
triquads_array[j * 6] = j * 4 + i;
triquads_array[j * 6 + 1] = j * 4 + 1 + i;
triquads_array[j * 6 + 2] = j * 4 + 2 + i;
triquads_array[j * 6 + 3] = j * 4 + i;
triquads_array[j * 6 + 4] = j * 4 + 2 + i;
triquads_array[j * 6 + 5] = j * 4 + 3 + i;
}
pglGenBuffersARB( 1, &gl2wrap.triquads_ibo[i] );
rpglBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, gl2wrap.triquads_ibo[i] );
pglBufferDataARB( GL_ELEMENT_ARRAY_BUFFER_ARB, sizeof(triquads_array), triquads_array, GL_STATIC_DRAW_ARB );
}
rpglBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 );
}
static void GL2_InitIncrementalBuffer( int i, GLuint size )
{
gl2wrap.attrbufobj[i] = malloc(gl2wrap_config.cycle_buffers * 4);
if( gl2wrap_config.buf_storage )
gl2wrap.mappings[i] = malloc(gl2wrap_config.cycle_buffers * 8);
pglGenBuffersARB( gl2wrap_config.cycle_buffers, gl2wrap.attrbufobj[i] );
for(int j = 0; j < gl2wrap_config.cycle_buffers; j++ )
{
rpglBindBufferARB( GL_ARRAY_BUFFER_ARB, gl2wrap.attrbufobj[i][j] );
if( gl2wrap_config.buf_storage )
{
_pglBufferStorage( GL_ARRAY_BUFFER_ARB, size, NULL,
0x0002 //GL_MAP_WRITE_BIT
| (gl2wrap_config.coherent?0x80:0)
| 0x40
);
gl2wrap.mappings[i][j] = _pglMapBufferRange(GL_ARRAY_BUFFER_ARB,
0,
size,
0x0002 //GL_MAP_WRITE_BIT
// | 0x0004// GL_MAP_INVALIDATE_RANGE_BIT.
// | 0x0008 // GL_MAP_INVALIDATE_BUFFER_BIT
// |0x0020 //GL_MAP_UNSYNCHRONIZED_BIT
|(!gl2wrap_config.coherent?0x0010:0) // GL_MAP_FLUSH_EXPLICIT_BIT
| 0X40
|(gl2wrap_config.coherent?0x80:0) // GL_MAP_COHERENT_BIT
);
}
else
pglBufferDataARB( GL_ARRAY_BUFFER_ARB, size, NULL, GL_STREAM_DRAW_ARB );
}
if( gl2wrap_config.buf_storage )
gl2wrap.attrbuf[i] = gl2wrap.mappings[i][0];
}
int GL2_ShimInit( void ) int GL2_ShimInit( void )
{ {
int i; int i;
GLuint total, size; GLuint total;
static const GLuint precache_progs[] = { static const GLuint precache_progs[] = {
0x0001, // out = ucolor 0x0001, // out = ucolor
0x0005, // out = tex0 * ucolor 0x0005, // out = tex0 * ucolor
@ -463,26 +529,7 @@ int GL2_ShimInit( void )
memset( &gl2wrap, 0, sizeof( gl2wrap ) ); memset( &gl2wrap, 0, sizeof( gl2wrap ) );
GL2_ShimInstall(); GL2_ShimInstall();
GL2_InitTriQuads();
/// TODO: use IBO
for( i = 0; i < (!!_pglDrawRangeElementsBaseVertex?1:4); i++ )
{
int j;
GLushort triquads_array[TRIQUADS_SIZE * 6];
for( j = 0; j < TRIQUADS_SIZE; j++ )
{
triquads_array[j * 6] = j * 4 + i;
triquads_array[j * 6 + 1] = j * 4 + 1 + i;
triquads_array[j * 6 + 2] = j * 4 + 2 + i;
triquads_array[j * 6 + 3] = j * 4 + i;
triquads_array[j * 6 + 4] = j * 4 + 2 + i;
triquads_array[j * 6 + 5] = j * 4 + 3 + i;
}
pglGenBuffersARB( 1, &gl2wrap.triquads_ibo[i] );
rpglBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, gl2wrap.triquads_ibo[i] );
pglBufferDataARB( GL_ELEMENT_ARRAY_BUFFER_ARB, sizeof(triquads_array), triquads_array, GL_STATIC_DRAW_ARB );
}
gl2wrap.color[0] = 1.f; gl2wrap.color[0] = 1.f;
gl2wrap.color[1] = 1.f; gl2wrap.color[1] = 1.f;
@ -494,7 +541,7 @@ int GL2_ShimInit( void )
for ( i = 0; i < GL2_ATTR_MAX; ++i ) for ( i = 0; i < GL2_ATTR_MAX; ++i )
{ {
size = GL2_MAX_VERTS * gl2wrap_attr_size[i] * sizeof( GLfloat ); GLuint size = GL2_MAX_VERTS * gl2wrap_attr_size[i] * sizeof( GLfloat );
if( !gl2wrap_config.buf_storage ) if( !gl2wrap_config.buf_storage )
{ {
#ifdef XASH_POSIX #ifdef XASH_POSIX
@ -504,40 +551,8 @@ int GL2_ShimInit( void )
#endif #endif
} }
if( gl2wrap_config.incremental ) if( gl2wrap_config.incremental )
{ GL2_InitIncrementalBuffer( i, size );
gl2wrap.attrbufobj[i] = malloc(gl2wrap_config.cycle_buffers * 4);
if( gl2wrap_config.buf_storage )
gl2wrap.mappings[i] = malloc(gl2wrap_config.cycle_buffers * 8);
pglGenBuffersARB( gl2wrap_config.cycle_buffers, gl2wrap.attrbufobj[i] );
for(int j = 0; j < gl2wrap_config.cycle_buffers; j++ )
{
rpglBindBufferARB( GL_ARRAY_BUFFER_ARB, gl2wrap.attrbufobj[i][j] );
if( gl2wrap_config.buf_storage )
{
_pglBufferStorage( GL_ARRAY_BUFFER_ARB, size, NULL,
0x0002 //GL_MAP_WRITE_BIT
| (gl2wrap_config.coherent?0x80:0)
| 0x40
);
gl2wrap.mappings[i][j] = _pglMapBufferRange(GL_ARRAY_BUFFER_ARB,
0,
size,
0x0002 //GL_MAP_WRITE_BIT
// | 0x0004// GL_MAP_INVALIDATE_RANGE_BIT.
// | 0x0008 // GL_MAP_INVALIDATE_BUFFER_BIT
// |0x0020 //GL_MAP_UNSYNCHRONIZED_BIT
|(!gl2wrap_config.coherent?0x0010:0) // GL_MAP_FLUSH_EXPLICIT_BIT
| 0X40
|(gl2wrap_config.coherent?0x80:0) // GL_MAP_COHERENT_BIT
);
}
else
pglBufferDataARB( GL_ARRAY_BUFFER_ARB, size, NULL, GL_STREAM_DRAW_ARB );
}
if( gl2wrap_config.buf_storage )
gl2wrap.attrbuf[i] = gl2wrap.mappings[i][0];
}
else else
{ {
if(!gl2wrap_config.incremental && gl2wrap_config.vao_mandatory) if(!gl2wrap_config.incremental && gl2wrap_config.vao_mandatory)
@ -560,9 +575,6 @@ int GL2_ShimInit( void )
if( gl2wrap_config.vao_mandatory ) if( gl2wrap_config.vao_mandatory )
pglBindVertexArray(0); pglBindVertexArray(0);
rpglBindBufferARB( GL_ARRAY_BUFFER_ARB, 0 ); rpglBindBufferARB( GL_ARRAY_BUFFER_ARB, 0 );
rpglBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 );
gEngfuncs.Con_DPrintf( S_NOTE "GL2_ShimInit(): %u bytes allocated for vertex buffer\n", total ); gEngfuncs.Con_DPrintf( S_NOTE "GL2_ShimInit(): %u bytes allocated for vertex buffer\n", total );
gEngfuncs.Con_DPrintf( S_NOTE "GL2_ShimInit(): Pre-generating %u progs...\n", (uint)(sizeof( precache_progs ) / sizeof( *precache_progs ) )); gEngfuncs.Con_DPrintf( S_NOTE "GL2_ShimInit(): Pre-generating %u progs...\n", (uint)(sizeof( precache_progs ) / sizeof( *precache_progs ) ));
@ -708,37 +720,10 @@ static void APIENTRY GL2_Begin( GLenum prim )
} }
void (*_pglMemoryBarrier)(GLbitfield barriers); void (*_pglMemoryBarrier)(GLbitfield barriers);
void GL2_FlushPrims( void ) static void GL2_UpdateIncrementalBuffer( gl2wrap_prog_t *prog, int count )
{ {
int i; int i;
int startindex = 0; if(!gl2wrap_config.buf_storage)
GLuint flags = gl2wrap.cur_flags;
GLint count = gl2wrap.end - gl2wrap.begin;
gl2wrap_prog_t *prog;
if ( !gl2wrap.prim || !count )
goto _leave; // end without begin
// enable alpha test and fog if needed
if ( alpha_test_state )
flags |= 1 << GL2_FLAG_ALPHA_TEST;
if ( fogging )
flags |= 1 << GL2_FLAG_FOG;
// disable all vertex attrib pointers
if(!gl2wrap_config.vao_mandatory)
{
for ( i = 0; i < GL2_ATTR_MAX; ++i )
pglDisableVertexAttribArrayARB( i );
}
prog = GL2_SetProg( flags );
if ( !prog )
{
gEngfuncs.Host_Error( "GL2_End(): Could not find program for flags 0x%04x!\n", flags );
goto _leave;
}
if(gl2wrap_config.incremental && !gl2wrap_config.buf_storage)
{ {
for( i = 0; i < GL2_ATTR_MAX; i++) for( i = 0; i < GL2_ATTR_MAX; i++)
{ {
@ -763,7 +748,7 @@ void GL2_FlushPrims( void )
} }
} }
} }
if(gl2wrap_config.incremental && gl2wrap_config.buf_storage && !gl2wrap_config.coherent) else if(!gl2wrap_config.coherent)
{ {
for( i = 0; i < GL2_ATTR_MAX; i++) for( i = 0; i < GL2_ATTR_MAX; i++)
{ {
@ -774,8 +759,46 @@ void GL2_FlushPrims( void )
} }
} }
} }
}
void GL2_FlushPrims( void )
{
int i;
int startindex = 0;
GLuint flags = gl2wrap.cur_flags;
GLint count = gl2wrap.end - gl2wrap.begin;
gl2wrap_prog_t *prog;
if ( !gl2wrap.prim || !count )
goto _leave; // end without begin
// enable alpha test and fog if needed
if ( gl2wrap_state.alpha_test )
flags |= 1 << GL2_FLAG_ALPHA_TEST;
if ( gl2wrap_state.fog )
flags |= 1 << GL2_FLAG_FOG;
// disable all vertex attrib pointers
if(!gl2wrap_config.vao_mandatory)
{
for ( i = 0; i < GL2_ATTR_MAX; ++i )
pglDisableVertexAttribArrayARB( i );
}
prog = GL2_SetProg( flags );
if ( !prog )
{
gEngfuncs.Host_Error( "GL2_End(): Could not find program for flags 0x%04x!\n", flags );
goto _leave;
}
if(!gl2wrap_config.incremental)
if( gl2wrap_config.incremental )
{
GL2_UpdateIncrementalBuffer( prog, count );
pglBindVertexArray( prog->vao_begin[gl2wrap.attrbufcycle] );
startindex = gl2wrap.begin;
}
else
{ {
if(gl2wrap_config.vao_mandatory) if(gl2wrap_config.vao_mandatory)
pglBindVertexArray( prog->vao_begin[gl2wrap.attrbufcycle] ); pglBindVertexArray( prog->vao_begin[gl2wrap.attrbufcycle] );
@ -790,8 +813,8 @@ void GL2_FlushPrims( void )
pglBindBufferARB( GL_ARRAY_BUFFER_ARB, gl2wrap.attrbufobj[i][gl2wrap.attrbufcycle] ); pglBindBufferARB( GL_ARRAY_BUFFER_ARB, gl2wrap.attrbufobj[i][gl2wrap.attrbufcycle] );
if(gl2wrap_config.supports_mapbuffer) if(gl2wrap_config.supports_mapbuffer)
{ {
void *mem;
if( gl2wrap_attr_size[i] * 4 * count > 8192) if( gl2wrap_attr_size[i] * 4 * count > MAX_BEGINEND_VERTS)
{ {
pglBufferDataARB( GL_ARRAY_BUFFER_ARB, gl2wrap_attr_size[i] * 4 * count, gl2wrap.attrbuf[i] + gl2wrap_attr_size[i] * gl2wrap.begin , GL_STREAM_DRAW_ARB ); pglBufferDataARB( GL_ARRAY_BUFFER_ARB, gl2wrap_attr_size[i] * 4 * count, gl2wrap.attrbuf[i] + gl2wrap_attr_size[i] * gl2wrap.begin , GL_STREAM_DRAW_ARB );
pglEnableVertexAttribArrayARB( prog->attridx[i] ); pglEnableVertexAttribArrayARB( prog->attridx[i] );
@ -799,7 +822,7 @@ void GL2_FlushPrims( void )
} }
else else
{ {
mem = _pglMapBufferRange(GL_ARRAY_BUFFER_ARB, void *mem = _pglMapBufferRange(GL_ARRAY_BUFFER_ARB,
0, 0,
gl2wrap_attr_size[i] * 4 * count, gl2wrap_attr_size[i] * 4 * count,
0x0002 //GL_MAP_WRITE_BIT 0x0002 //GL_MAP_WRITE_BIT
@ -827,12 +850,6 @@ void GL2_FlushPrims( void )
gl2wrap.attrbufcycle = (gl2wrap.attrbufcycle + 1) % gl2wrap_config.cycle_buffers; gl2wrap.attrbufcycle = (gl2wrap.attrbufcycle + 1) % gl2wrap_config.cycle_buffers;
} }
if(gl2wrap_config.incremental)
{
pglBindVertexArray( prog->vao_begin[gl2wrap.attrbufcycle] );
startindex = gl2wrap.begin;
}
if(gl2wrap.prim == GL_QUADS) if(gl2wrap.prim == GL_QUADS)
{ {
if(count == 4) if(count == 4)
@ -947,7 +964,7 @@ GLboolean (APIENTRY* rpglIsEnabled)(GLenum e);
static GLboolean APIENTRY GL2_IsEnabled(GLenum e) static GLboolean APIENTRY GL2_IsEnabled(GLenum e)
{ {
if(e == GL_FOG) if(e == GL_FOG)
return fogging; return gl2wrap_state.fog;
return rpglIsEnabled(e); return rpglIsEnabled(e);
} }
@ -1089,40 +1106,35 @@ static void APIENTRY GL2_Fogfv( GLenum param, const GLfloat *val )
} }
} }
static qboolean GL2_SkipEnable( GLenum e )
{
return e == GL_TEXTURE_2D || e == GL_TEXTURE_1D;
}
static qboolean GL2_CatchEnable( GLenum e, qboolean enable )
{
if( e == GL_FOG )
gl2wrap_state.fog = enable;
else if( e == GL_ALPHA_TEST )
gl2wrap_state.alpha_test = enable;
else return false;
return true;
}
static void APIENTRY GL2_Enable( GLenum e ) static void APIENTRY GL2_Enable( GLenum e )
{ {
#ifdef QUAD_BATCH if( GL2_SkipEnable(e) )
if( e == GL_BLEND || e == GL_ALPHA_TEST )
GL2_FlushPrims();
#endif
if( e == GL_TEXTURE_2D || e == GL_TEXTURE_1D )
{} {}
else if( e == GL_FOG ) else if(!GL2_CatchEnable(e, true))
fogging = 1;
else if( e == GL_ALPHA_TEST )
alpha_test_state = 1;
else
rpglEnable(e); rpglEnable(e);
} }
static void APIENTRY GL2_Disable( GLenum e ) static void APIENTRY GL2_Disable( GLenum e )
{ {
#ifdef QUAD_BATCH if( GL2_SkipEnable(e) )
if( e == GL_BLEND || e == GL_ALPHA_TEST )
GL2_FlushPrims();
#endif
if( e == GL_TEXTURE_2D || e == GL_TEXTURE_1D )
{} {}
else if( e == GL_FOG ) else if(!GL2_CatchEnable(e, false))
fogging = 0;
else if( e == GL_ALPHA_TEST )
alpha_test_state = 0;
else
{
rpglDisable(e); rpglDisable(e);
}
} }
static void APIENTRY GL2_MatrixMode( GLenum m ) static void APIENTRY GL2_MatrixMode( GLenum m )
@ -1243,9 +1255,7 @@ static struct
{ {
gl2wrap_arraypointer_t ptr[GL2_ATTR_MAX]; gl2wrap_arraypointer_t ptr[GL2_ATTR_MAX];
unsigned int flags; unsigned int flags;
unsigned int texture;
//unsigned int vbo_flags; //unsigned int vbo_flags;
GLuint vbo;
GLuint stream_buffer; GLuint stream_buffer;
void *stream_pointer; void *stream_pointer;
size_t stream_counter; size_t stream_counter;
@ -1259,7 +1269,7 @@ static void GL2_SetPointer( int idx, GLint size, GLenum type, GLsizei stride, co
gl2wrap_arrays.ptr[idx].type = type; gl2wrap_arrays.ptr[idx].type = type;
gl2wrap_arrays.ptr[idx].stride = stride; gl2wrap_arrays.ptr[idx].stride = stride;
gl2wrap_arrays.ptr[idx].userptr = pointer; gl2wrap_arrays.ptr[idx].userptr = pointer;
gl2wrap_arrays.ptr[idx].vbo = gl2wrap_arrays.vbo; gl2wrap_arrays.ptr[idx].vbo = gl2wrap_state.vbo;
// if(vbo) // if(vbo)
// gl2wrap_arrays.vbo_flags |= 1 << idx; // gl2wrap_arrays.vbo_flags |= 1 << idx;
// else // else
@ -1278,7 +1288,7 @@ static void APIENTRY GL2_ColorPointer( GLint size, GLenum type, GLsizei stride,
static void APIENTRY GL2_TexCoordPointer( GLint size, GLenum type, GLsizei stride, const GLvoid *pointer ) static void APIENTRY GL2_TexCoordPointer( GLint size, GLenum type, GLsizei stride, const GLvoid *pointer )
{ {
GL2_SetPointer( GL2_ATTR_TEXCOORD0 + gl2wrap_arrays.texture, size, type, stride, pointer ); GL2_SetPointer( GL2_ATTR_TEXCOORD0 + gl2wrap_state.tmu, size, type, stride, pointer );
} }
static unsigned int GL2_GetArrIdx( GLenum array ) static unsigned int GL2_GetArrIdx( GLenum array )
@ -1289,8 +1299,8 @@ static unsigned int GL2_GetArrIdx( GLenum array )
case GL_COLOR_ARRAY: case GL_COLOR_ARRAY:
return GL2_ATTR_COLOR; return GL2_ATTR_COLOR;
case GL_TEXTURE_COORD_ARRAY: case GL_TEXTURE_COORD_ARRAY:
ASSERT(gl2wrap_arrays.texture < 2); ASSERT(gl2wrap_state.tmu < 2);
return GL2_ATTR_TEXCOORD0 + gl2wrap_arrays.texture; return GL2_ATTR_TEXCOORD0 + gl2wrap_state.tmu;
default: default:
return 0; return 0;
} }
@ -1318,9 +1328,9 @@ static void GL2_SetupArrays( GLuint start, GLuint end )
GL2_FlushPrims(); GL2_FlushPrims();
#endif #endif
if ( alpha_test_state ) if ( gl2wrap_state.alpha_test )
flags |= 1 << GL2_FLAG_ALPHA_TEST; flags |= 1 << GL2_FLAG_ALPHA_TEST;
if ( fogging ) if ( gl2wrap_state.fog )
flags |= 1 << GL2_FLAG_FOG; flags |= 1 << GL2_FLAG_FOG;
prog = GL2_SetProg( flags );// | GL2_ATTR_TEXCOORD0 ); prog = GL2_SetProg( flags );// | GL2_ATTR_TEXCOORD0 );
if( !prog ) if( !prog )
@ -1479,7 +1489,7 @@ static void GL2_SetupArrays( GLuint start, GLuint end )
pglDisableVertexAttribArrayARB( prog->attridx[i] ); pglDisableVertexAttribArrayARB( prog->attridx[i] );
} }
} }
rpglBindBufferARB( GL_ARRAY_BUFFER_ARB, gl2wrap_arrays.vbo ); rpglBindBufferARB( GL_ARRAY_BUFFER_ARB, gl2wrap_state.vbo );
} }
static void APIENTRY GL2_DrawElements( GLenum mode, GLsizei count, GLenum type, const GLvoid *indices ) static void APIENTRY GL2_DrawElements( GLenum mode, GLsizei count, GLenum type, const GLvoid *indices )
@ -1506,7 +1516,7 @@ static void APIENTRY GL2_DrawArrays( GLenum mode, GLint first, GLsizei count )
static void APIENTRY GL2_BindBufferARB( GLenum buf, GLuint obj) static void APIENTRY GL2_BindBufferARB( GLenum buf, GLuint obj)
{ {
if( buf == GL_ARRAY_BUFFER_ARB ) if( buf == GL_ARRAY_BUFFER_ARB )
gl2wrap_arrays.vbo = obj; gl2wrap_state.vbo = obj;
rpglBindBufferARB( buf, obj ); rpglBindBufferARB( buf, obj );
} }
@ -1517,7 +1527,7 @@ static void APIENTRY GL2_ActiveTextureARB( GLenum tex )
static void APIENTRY GL2_ClientActiveTextureARB( GLenum tex ) static void APIENTRY GL2_ClientActiveTextureARB( GLenum tex )
{ {
gl2wrap_arrays.texture = tex - GL_TEXTURE0_ARB; gl2wrap_state.tmu = tex - GL_TEXTURE0_ARB;
//pglActiveTextureARB(tex); //pglActiveTextureARB(tex);
} }

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