/**
* Upload SAMPLER_BORDER_COLOR_STATE.
*/
void
upload_default_color(struct brw_context *brw, struct gl_sampler_object *sampler,
int unit, int ss_index)
{
struct intel_context *intel = &brw->intel;
struct gl_context *ctx = &intel->ctx;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
struct gl_texture_object *texObj = texUnit->_Current;
struct gl_texture_image *firstImage = texObj->Image[0][texObj->BaseLevel];
float color[4];
if (firstImage->_BaseFormat == GL_DEPTH_COMPONENT) {
/* GL specs that border color for depth textures is taken from the
* R channel, while the hardware uses A. Spam R into all the
* channels for safety.
*/
color[0] = sampler->BorderColor.f[0];
color[1] = sampler->BorderColor.f[0];
color[2] = sampler->BorderColor.f[0];
color[3] = sampler->BorderColor.f[0];
} else {
color[0] = sampler->BorderColor.f[0];
color[1] = sampler->BorderColor.f[1];
color[2] = sampler->BorderColor.f[2];
color[3] = sampler->BorderColor.f[3];
}
/* In some cases we use an RGBA surface format for GL RGB textures,
* where we've initialized the A channel to 1.0. We also have to set
* the border color alpha to 1.0 in that case.
*/
if (firstImage->_BaseFormat == GL_RGB)
color[3] = 1.0;
if (intel->gen == 5 || intel->gen == 6) {
struct gen5_sampler_default_color *sdc;
sdc = brw_state_batch(brw, AUB_TRACE_SAMPLER_DEFAULT_COLOR,
sizeof(*sdc), 32, &brw->wm.sdc_offset[ss_index]);
memset(sdc, 0, sizeof(*sdc));
UNCLAMPED_FLOAT_TO_UBYTE(sdc->ub[0], color[0]);
UNCLAMPED_FLOAT_TO_UBYTE(sdc->ub[1], color[1]);
UNCLAMPED_FLOAT_TO_UBYTE(sdc->ub[2], color[2]);
UNCLAMPED_FLOAT_TO_UBYTE(sdc->ub[3], color[3]);
UNCLAMPED_FLOAT_TO_USHORT(sdc->us[0], color[0]);
UNCLAMPED_FLOAT_TO_USHORT(sdc->us[1], color[1]);
UNCLAMPED_FLOAT_TO_USHORT(sdc->us[2], color[2]);
UNCLAMPED_FLOAT_TO_USHORT(sdc->us[3], color[3]);
UNCLAMPED_FLOAT_TO_SHORT(sdc->s[0], color[0]);
UNCLAMPED_FLOAT_TO_SHORT(sdc->s[1], color[1]);
UNCLAMPED_FLOAT_TO_SHORT(sdc->s[2], color[2]);
UNCLAMPED_FLOAT_TO_SHORT(sdc->s[3], color[3]);
sdc->hf[0] = _mesa_float_to_half(color[0]);
sdc->hf[1] = _mesa_float_to_half(color[1]);
sdc->hf[2] = _mesa_float_to_half(color[2]);
sdc->hf[3] = _mesa_float_to_half(color[3]);
sdc->b[0] = sdc->s[0] >> 8;
sdc->b[1] = sdc->s[1] >> 8;
sdc->b[2] = sdc->s[2] >> 8;
sdc->b[3] = sdc->s[3] >> 8;
sdc->f[0] = color[0];
sdc->f[1] = color[1];
sdc->f[2] = color[2];
sdc->f[3] = color[3];
} else {
/**
* Upload SAMPLER_BORDER_COLOR_STATE.
*/
void
upload_default_color(struct brw_context *brw,
struct gl_sampler_object *sampler,
int unit,
uint32_t *sdc_offset)
{
struct gl_context *ctx = &brw->ctx;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
struct gl_texture_object *texObj = texUnit->_Current;
struct gl_texture_image *firstImage = texObj->Image[0][texObj->BaseLevel];
float color[4];
switch (firstImage->_BaseFormat) {
case GL_DEPTH_COMPONENT:
/* GL specs that border color for depth textures is taken from the
* R channel, while the hardware uses A. Spam R into all the
* channels for safety.
*/
color[0] = sampler->BorderColor.f[0];
color[1] = sampler->BorderColor.f[0];
color[2] = sampler->BorderColor.f[0];
color[3] = sampler->BorderColor.f[0];
break;
case GL_ALPHA:
color[0] = 0.0;
color[1] = 0.0;
color[2] = 0.0;
color[3] = sampler->BorderColor.f[3];
break;
case GL_INTENSITY:
color[0] = sampler->BorderColor.f[0];
color[1] = sampler->BorderColor.f[0];
color[2] = sampler->BorderColor.f[0];
color[3] = sampler->BorderColor.f[0];
break;
case GL_LUMINANCE:
color[0] = sampler->BorderColor.f[0];
color[1] = sampler->BorderColor.f[0];
color[2] = sampler->BorderColor.f[0];
color[3] = 1.0;
break;
case GL_LUMINANCE_ALPHA:
color[0] = sampler->BorderColor.f[0];
color[1] = sampler->BorderColor.f[0];
color[2] = sampler->BorderColor.f[0];
color[3] = sampler->BorderColor.f[3];
break;
default:
color[0] = sampler->BorderColor.f[0];
color[1] = sampler->BorderColor.f[1];
color[2] = sampler->BorderColor.f[2];
color[3] = sampler->BorderColor.f[3];
break;
}
/* In some cases we use an RGBA surface format for GL RGB textures,
* where we've initialized the A channel to 1.0. We also have to set
* the border color alpha to 1.0 in that case.
*/
if (firstImage->_BaseFormat == GL_RGB)
color[3] = 1.0;
if (brw->gen >= 8) {
/* On Broadwell, the border color is represented as four 32-bit floats,
* integers, or unsigned values, interpreted according to the surface
* format. This matches the sampler->BorderColor union exactly. Since
* we use floats both here and in the above reswizzling code, we preserve
* the original bit pattern. So we actually handle all three formats.
*/
float *sdc = brw_state_batch(brw, AUB_TRACE_SAMPLER_DEFAULT_COLOR,
4 * 4, 64, sdc_offset);
COPY_4FV(sdc, color);
} else if (brw->gen == 5 || brw->gen == 6) {
struct gen5_sampler_default_color *sdc;
sdc = brw_state_batch(brw, AUB_TRACE_SAMPLER_DEFAULT_COLOR,
sizeof(*sdc), 32, sdc_offset);
memset(sdc, 0, sizeof(*sdc));
UNCLAMPED_FLOAT_TO_UBYTE(sdc->ub[0], color[0]);
UNCLAMPED_FLOAT_TO_UBYTE(sdc->ub[1], color[1]);
UNCLAMPED_FLOAT_TO_UBYTE(sdc->ub[2], color[2]);
UNCLAMPED_FLOAT_TO_UBYTE(sdc->ub[3], color[3]);
UNCLAMPED_FLOAT_TO_USHORT(sdc->us[0], color[0]);
UNCLAMPED_FLOAT_TO_USHORT(sdc->us[1], color[1]);
UNCLAMPED_FLOAT_TO_USHORT(sdc->us[2], color[2]);
UNCLAMPED_FLOAT_TO_USHORT(sdc->us[3], color[3]);
UNCLAMPED_FLOAT_TO_SHORT(sdc->s[0], color[0]);
UNCLAMPED_FLOAT_TO_SHORT(sdc->s[1], color[1]);
UNCLAMPED_FLOAT_TO_SHORT(sdc->s[2], color[2]);
UNCLAMPED_FLOAT_TO_SHORT(sdc->s[3], color[3]);
sdc->hf[0] = _mesa_float_to_half(color[0]);
sdc->hf[1] = _mesa_float_to_half(color[1]);
sdc->hf[2] = _mesa_float_to_half(color[2]);
sdc->hf[3] = _mesa_float_to_half(color[3]);
sdc->b[0] = sdc->s[0] >> 8;
sdc->b[1] = sdc->s[1] >> 8;
sdc->b[2] = sdc->s[2] >> 8;
sdc->b[3] = sdc->s[3] >> 8;
sdc->f[0] = color[0];
sdc->f[1] = color[1];
sdc->f[2] = color[2];
sdc->f[3] = color[3];
} else {
