static int emit_const( struct svga_context *svga,
int unit,
int i,
const float *value )
{
int ret = PIPE_OK;
if (memcmp(svga->state.hw_draw.cb[unit][i], value, 4 * sizeof(float)) != 0) {
if (SVGA_DEBUG & DEBUG_CONSTS)
debug_printf("%s %s %d: %f %f %f %f\n",
__FUNCTION__,
unit == PIPE_SHADER_VERTEX ? "VERT" : "FRAG",
i,
value[0],
value[1],
value[2],
value[3]);
ret = SVGA3D_SetShaderConst( svga->swc,
i,
svga_shader_type(unit),
SVGA3D_CONST_TYPE_FLOAT,
value );
if (ret)
return ret;
memcpy(svga->state.hw_draw.cb[unit][i], value, 4 * sizeof(float));
}
return ret;
}
/**
* Check and emit one shader constant register.
* \param shader PIPE_SHADER_FRAGMENT or PIPE_SHADER_VERTEX
* \param i which float[4] constant to change
* \param value the new float[4] value
*/
static enum pipe_error
emit_const(struct svga_context *svga, unsigned shader, unsigned i,
const float *value)
{
enum pipe_error ret = PIPE_OK;
assert(shader < PIPE_SHADER_TYPES);
assert(i < SVGA3D_CONSTREG_MAX);
if (memcmp(svga->state.hw_draw.cb[shader][i], value,
4 * sizeof(float)) != 0) {
if (SVGA_DEBUG & DEBUG_CONSTS)
debug_printf("%s %s %u: %f %f %f %f\n",
__FUNCTION__,
shader == PIPE_SHADER_VERTEX ? "VERT" : "FRAG",
i,
value[0],
value[1],
value[2],
value[3]);
ret = SVGA3D_SetShaderConst( svga->swc,
i,
svga_shader_type(shader),
SVGA3D_CONST_TYPE_FLOAT,
value );
if (ret != PIPE_OK)
return ret;
memcpy(svga->state.hw_draw.cb[shader][i], value, 4 * sizeof(float));
}
return ret;
}
void
SVGA3DUtil_SetShaderConstMatrix(uint32 cid, // IN
uint32 reg, // IN
SVGA3dShaderType type, // IN
const float *matrix) // IN
{
int col;
for (col = 0; col < 4; col++) {
float vector[4];
vector[0] = matrix[col + 0];
vector[1] = matrix[col + 4];
vector[2] = matrix[col + 8];
vector[3] = matrix[col + 12];
SVGA3D_SetShaderConst(cid, reg + col, type,
SVGA3D_CONST_TYPE_FLOAT, vector);
}
}
