static void r200SetTexBorderColor( radeonTexObjPtr t, const GLfloat color[4] )
{
GLubyte c[4];
CLAMPED_FLOAT_TO_UBYTE(c[0], color[0]);
CLAMPED_FLOAT_TO_UBYTE(c[1], color[1]);
CLAMPED_FLOAT_TO_UBYTE(c[2], color[2]);
CLAMPED_FLOAT_TO_UBYTE(c[3], color[3]);
t->pp_border_color = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
}
static void radeonTexEnv( GLcontext *ctx, GLenum target,
GLenum pname, const GLfloat *param )
{
radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
GLuint unit = ctx->Texture.CurrentUnit;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
if ( RADEON_DEBUG & DEBUG_STATE ) {
fprintf( stderr, "%s( %s )\n",
__FUNCTION__, _mesa_lookup_enum_by_nr( pname ) );
}
switch ( pname ) {
case GL_TEXTURE_ENV_COLOR: {
GLubyte c[4];
GLuint envColor;
UNCLAMPED_FLOAT_TO_RGBA_CHAN( c, texUnit->EnvColor );
envColor = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
if ( rmesa->hw.tex[unit].cmd[TEX_PP_TFACTOR] != envColor ) {
RADEON_STATECHANGE( rmesa, tex[unit] );
rmesa->hw.tex[unit].cmd[TEX_PP_TFACTOR] = envColor;
}
break;
}
case GL_TEXTURE_LOD_BIAS_EXT: {
GLfloat bias, min;
GLuint b;
/* The Radeon's LOD bias is a signed 2's complement value with a
* range of -1.0 <= bias < 4.0. We break this into two linear
* functions, one mapping [-1.0,0.0] to [-128,0] and one mapping
* [0.0,4.0] to [0,127].
*/
min = driQueryOptionb (&rmesa->optionCache, "no_neg_lod_bias") ?
0.0 : -1.0;
bias = CLAMP( *param, min, 4.0 );
if ( bias == 0 ) {
b = 0;
} else if ( bias > 0 ) {
b = ((GLuint)SCALED_FLOAT_TO_BYTE( bias, 4.0 )) << RADEON_LOD_BIAS_SHIFT;
} else {
b = ((GLuint)SCALED_FLOAT_TO_BYTE( bias, 1.0 )) << RADEON_LOD_BIAS_SHIFT;
}
if ( (rmesa->hw.tex[unit].cmd[TEX_PP_TXFILTER] & RADEON_LOD_BIAS_MASK) != b ) {
RADEON_STATECHANGE( rmesa, tex[unit] );
rmesa->hw.tex[unit].cmd[TEX_PP_TXFILTER] &= ~RADEON_LOD_BIAS_MASK;
rmesa->hw.tex[unit].cmd[TEX_PP_TXFILTER] |= (b & RADEON_LOD_BIAS_MASK);
}
break;
}
default:
return;
}
}
/**
* \brief Set texture environment parameters.
*
* \param ctx GL context.
* \param target texture environment.
* \param pname texture parameter. Accepted value is GL_TEXTURE_ENV_COLOR.
* \param param parameter value.
*
* Updates the current unit's RADEON_TEX_PP_TFACTOR register and informs of the
* state change.
*/
static void radeonTexEnv( GLcontext *ctx, GLenum target,
GLenum pname, const GLfloat *param )
{
radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
GLuint unit = ctx->Texture.CurrentUnit;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
switch ( pname ) {
case GL_TEXTURE_ENV_COLOR: {
GLubyte c[4];
GLuint envColor;
UNCLAMPED_FLOAT_TO_RGBA_CHAN( c, texUnit->EnvColor );
envColor = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
if ( rmesa->hw.tex[unit].cmd[TEX_PP_TFACTOR] != envColor ) {
RADEON_STATECHANGE( rmesa, tex[unit] );
rmesa->hw.tex[unit].cmd[TEX_PP_TFACTOR] = envColor;
}
break;
}
default:
return;
}
}
static void r200TexEnv( struct gl_context *ctx, GLenum target,
GLenum pname, const GLfloat *param )
{
r200ContextPtr rmesa = R200_CONTEXT(ctx);
GLuint unit = ctx->Texture.CurrentUnit;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
radeon_print(RADEON_TEXTURE | RADEON_STATE, RADEON_VERBOSE, "%s( %s )\n",
__FUNCTION__, _mesa_lookup_enum_by_nr( pname ) );
/* This is incorrect: Need to maintain this data for each of
* GL_TEXTURE_{123}D, GL_TEXTURE_RECTANGLE_NV, etc, and switch
* between them according to _Current->Target.
*/
switch ( pname ) {
case GL_TEXTURE_ENV_COLOR: {
GLubyte c[4];
GLuint envColor;
_mesa_unclamped_float_rgba_to_ubyte(c, texUnit->EnvColor);
envColor = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
if ( rmesa->hw.tf.cmd[TF_TFACTOR_0 + unit] != envColor ) {
R200_STATECHANGE( rmesa, tf );
rmesa->hw.tf.cmd[TF_TFACTOR_0 + unit] = envColor;
}
break;
}
case GL_TEXTURE_LOD_BIAS_EXT: {
GLfloat bias, min;
GLuint b;
const int fixed_one = R200_LOD_BIAS_FIXED_ONE;
/* The R200's LOD bias is a signed 2's complement value with a
* range of -16.0 <= bias < 16.0.
*
* NOTE: Add a small bias to the bias for conform mipsel.c test.
*/
bias = *param;
min = driQueryOptionb (&rmesa->radeon.optionCache, "no_neg_lod_bias") ?
0.0 : -16.0;
bias = CLAMP( bias, min, 16.0 );
b = ((int)(bias * fixed_one)
+ R200_LOD_BIAS_CORRECTION) & R200_LOD_BIAS_MASK;
if ( (rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] & R200_LOD_BIAS_MASK) != b ) {
R200_STATECHANGE( rmesa, tex[unit] );
rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] &= ~R200_LOD_BIAS_MASK;
rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] |= b;
}
break;
}
case GL_COORD_REPLACE_ARB:
if (ctx->Point.PointSprite) {
R200_STATECHANGE( rmesa, spr );
if ((GLenum)param[0]) {
rmesa->hw.spr.cmd[SPR_POINT_SPRITE_CNTL] |= R200_PS_GEN_TEX_0 << unit;
} else {
rmesa->hw.spr.cmd[SPR_POINT_SPRITE_CNTL] &= ~(R200_PS_GEN_TEX_0 << unit);
}
}
break;
default:
return;
}
}
static void radeonSetTexBorderColor( radeonTexObjPtr t, GLubyte c[4] )
{
t->pp_border_color = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
}
