#include "glheader.h"
#include "imports.h"
#include "bufferobj.h"
#include "context.h"
#include "image.h"
#include "enums.h"
#include "macros.h"
#include "polygon.h"
#include "mtypes.h"
void GLAPIENTRY
_mesa_CullFace( GLenum mode )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (MESA_VERBOSE&VERBOSE_API)
_mesa_debug(ctx, "glCullFace %s\n", _mesa_lookup_enum_by_nr(mode));
if (mode!=GL_FRONT && mode!=GL_BACK && mode!=GL_FRONT_AND_BACK) {
_mesa_error( ctx, GL_INVALID_ENUM, "glCullFace" );
return;
}
if (ctx->Polygon.CullFaceMode == mode)
return;
FLUSH_VERTICES(ctx, _NEW_POLYGON);
ctx->Polygon.CullFaceMode = mode;
if (ctx->Driver.CullFace)
ctx->Driver.CullFace( ctx, mode );
}
void GLAPIENTRY
_mesa_FrontFace( GLenum mode )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (MESA_VERBOSE&VERBOSE_API)
_mesa_debug(ctx, "glFrontFace %s\n", _mesa_lookup_enum_by_nr(mode));
if (mode!=GL_CW && mode!=GL_CCW) {
_mesa_error( ctx, GL_INVALID_ENUM, "glFrontFace" );
return;
}
if (ctx->Polygon.FrontFace == mode)
return;
FLUSH_VERTICES(ctx, _NEW_POLYGON);
ctx->Polygon.FrontFace = mode;
ctx->Polygon._FrontBit = (GLboolean) (mode == GL_CW);
if (ctx->Driver.FrontFace)
ctx->Driver.FrontFace( ctx, mode );
}
void GLAPIENTRY
_mesa_PolygonMode( GLenum face, GLenum mode )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (MESA_VERBOSE&VERBOSE_API)
_mesa_debug(ctx, "glPolygonMode %s %s\n",
_mesa_lookup_enum_by_nr(face),
_mesa_lookup_enum_by_nr(mode));
if (mode!=GL_POINT && mode!=GL_LINE && mode!=GL_FILL) {
_mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(mode)" );
return;
}
switch (face) {
case GL_FRONT:
if (ctx->Polygon.FrontMode == mode)
return;
FLUSH_VERTICES(ctx, _NEW_POLYGON);
ctx->Polygon.FrontMode = mode;
break;
case GL_FRONT_AND_BACK:
if (ctx->Polygon.FrontMode == mode &&
ctx->Polygon.BackMode == mode)
return;
FLUSH_VERTICES(ctx, _NEW_POLYGON);
ctx->Polygon.FrontMode = mode;
ctx->Polygon.BackMode = mode;
break;
case GL_BACK:
if (ctx->Polygon.BackMode == mode)
return;
FLUSH_VERTICES(ctx, _NEW_POLYGON);
ctx->Polygon.BackMode = mode;
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(face)" );
return;
}
if (ctx->Polygon.FrontMode == GL_FILL && ctx->Polygon.BackMode == GL_FILL)
ctx->_TriangleCaps &= ~DD_TRI_UNFILLED;
else
ctx->_TriangleCaps |= DD_TRI_UNFILLED;
if (ctx->Driver.PolygonMode)
ctx->Driver.PolygonMode(ctx, face, mode);
}
#if _HAVE_FULL_GL
void
_mesa_polygon_stipple(GLcontext *ctx, const GLubyte *pattern)
{
if (ctx->Unpack.BufferObj->Name) {
GLubyte *buf;
if (!_mesa_validate_pbo_access(2, &ctx->Unpack, 32, 32, 1,
GL_COLOR_INDEX, GL_BITMAP, pattern)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glPolygonStipple(bad PBO access)");
return;
}
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
GL_READ_ONLY_ARB,
ctx->Unpack.BufferObj);
if (!buf) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glPolygonStipple(PBO mapped)");
return;
}
buf = ADD_POINTERS(buf, pattern);
_mesa_unpack_polygon_stipple(buf, ctx->PolygonStipple, &ctx->Unpack);
ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
ctx->Unpack.BufferObj);
}
else {
_mesa_unpack_polygon_stipple(pattern, ctx->PolygonStipple, &ctx->Unpack);
}
}
void GLAPIENTRY
_mesa_PolygonStipple( const GLubyte *pattern )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (MESA_VERBOSE&VERBOSE_API)
_mesa_debug(ctx, "glPolygonStipple\n");
FLUSH_VERTICES(ctx, _NEW_POLYGONSTIPPLE);
_mesa_polygon_stipple(ctx, pattern);
if (ctx->Driver.PolygonStipple)
ctx->Driver.PolygonStipple(ctx, pattern);
}
void GLAPIENTRY
_mesa_GetPolygonStipple( GLubyte *dest )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (MESA_VERBOSE&VERBOSE_API)
_mesa_debug(ctx, "glGetPolygonStipple\n");
if (ctx->Pack.BufferObj->Name) {
GLubyte *buf;
if (!_mesa_validate_pbo_access(2, &ctx->Pack, 32, 32, 1,
GL_COLOR_INDEX, GL_BITMAP, dest)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetPolygonStipple(bad PBO access)");
return;
}
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
GL_WRITE_ONLY_ARB,
ctx->Pack.BufferObj);
if (!buf) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetPolygonStipple(PBO mapped)");
return;
}
buf = ADD_POINTERS(buf, dest);
_mesa_pack_polygon_stipple(ctx->PolygonStipple, buf, &ctx->Pack);
ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
ctx->Pack.BufferObj);
}
else {
_mesa_pack_polygon_stipple(ctx->PolygonStipple, dest, &ctx->Pack);
}
}
void GLAPIENTRY
_mesa_PolygonOffset( GLfloat factor, GLfloat units )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (MESA_VERBOSE&VERBOSE_API)
_mesa_debug(ctx, "glPolygonOffset %f %f\n", factor, units);
if (ctx->Polygon.OffsetFactor == factor &&
ctx->Polygon.OffsetUnits == units)
return;
FLUSH_VERTICES(ctx, _NEW_POLYGON);
ctx->Polygon.OffsetFactor = factor;
ctx->Polygon.OffsetUnits = units;
if (ctx->Driver.PolygonOffset)
ctx->Driver.PolygonOffset( ctx, factor, units );
}
void GLAPIENTRY
_mesa_PolygonOffsetEXT( GLfloat factor, GLfloat bias )
{
GET_CURRENT_CONTEXT(ctx);
_mesa_PolygonOffset(factor, bias * ctx->DrawBuffer->_DepthMaxF );
}
#endif
void _mesa_init_polygon( GLcontext * ctx )
{
ctx->Polygon.CullFlag = GL_FALSE;
ctx->Polygon.CullFaceMode = GL_BACK;
ctx->Polygon.FrontFace = GL_CCW;
ctx->Polygon._FrontBit = 0;
ctx->Polygon.FrontMode = GL_FILL;
ctx->Polygon.BackMode = GL_FILL;
ctx->Polygon.SmoothFlag = GL_FALSE;
ctx->Polygon.StippleFlag = GL_FALSE;
ctx->Polygon.OffsetFactor = 0.0F;
ctx->Polygon.OffsetUnits = 0.0F;
ctx->Polygon.OffsetPoint = GL_FALSE;
ctx->Polygon.OffsetLine = GL_FALSE;
ctx->Polygon.OffsetFill = GL_FALSE;
MEMSET( ctx->PolygonStipple, 0xff, 32*sizeof(GLuint) );
}