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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "rwbase.h"
#include "rwplg.h"
#include "rwpipeline.h"
#include "rwobjects.h"
#include "rwengine.h"
#define COLOR_ARGB(a,r,g,b) \
((uint32)((((a)&0xff)<<24)|(((r)&0xff)<<16)|(((g)&0xff)<<8)|((b)&0xff)))
namespace rw {
static void nothing(ObjPipeline *, Atomic*) {}
void
ObjPipeline::init(uint32 platform)
{
Pipeline::init(platform);
this->impl.instance = nothing;
this->impl.uninstance = nothing;
this->impl.render = nothing;
}
ObjPipeline*
ObjPipeline::create(void)
{
ObjPipeline *pipe = rwNewT(ObjPipeline, 1, MEMDUR_GLOBAL);
pipe->init(PLATFORM_NULL);
return pipe;
}
void
ObjPipeline::destroy(void)
{
rwFree(this);
}
// helper functions
void
findMinVertAndNumVertices(uint16 *indices, uint32 numIndices, uint32 *minVert, int32 *numVertices)
{
uint32 min = 0xFFFFFFFF;
uint32 max = 0;
while(numIndices--){
if(*indices < min)
min = *indices;
if(*indices > max)
max = *indices;
indices++;
}
uint32 num = max - min + 1;
// if mesh is empty, this can happen
if(min > max){
min = 0;
num = 0;
}
if(minVert)
*minVert = min;
if(numVertices)
*numVertices = num;
}
void
instV4d(int type, uint8 *dst, V4d *src, uint32 numVertices, uint32 stride)
{
if(type == VERT_FLOAT4)
for(uint32 i = 0; i < numVertices; i++){
memcpy(dst, src, 16);
dst += stride;
src++;
}
else
assert(0 && "unsupported instV4d type");
}
void
instV3d(int type, uint8 *dst, V3d *src, uint32 numVertices, uint32 stride)
{
if(type == VERT_FLOAT3)
for(uint32 i = 0; i < numVertices; i++){
memcpy(dst, src, 12);
dst += stride;
src++;
}
else if(type == VERT_COMPNORM)
for(uint32 i = 0; i < numVertices; i++){
uint32 n = ((((uint32)(src->z * 511.0f)) & 0x3ff) << 22) |
((((uint32)(src->y * 1023.0f)) & 0x7ff) << 11) |
((((uint32)(src->x * 1023.0f)) & 0x7ff) << 0);
*(uint32*)dst = n;
dst += stride;
src++;
}
else
assert(0 && "unsupported instV3d type");
}
void
uninstV3d(int type, V3d *dst, uint8 *src, uint32 numVertices, uint32 stride)
{
if(type == VERT_FLOAT3)
for(uint32 i = 0; i < numVertices; i++){
memcpy(dst, src, 12);
src += stride;
dst++;
}
else if(type == VERT_COMPNORM)
for(uint32 i = 0; i < numVertices; i++){
uint32 n = *(uint32*)src;
int32 normal[3];
normal[0] = n & 0x7FF;
normal[1] = (n >> 11) & 0x7FF;
normal[2] = (n >> 22) & 0x3FF;
// sign extend
if(normal[0] & 0x400) normal[0] |= ~0x7FF;
if(normal[1] & 0x400) normal[1] |= ~0x7FF;
if(normal[2] & 0x200) normal[2] |= ~0x3FF;
dst->x = normal[0] / 1023.0f;
dst->y = normal[1] / 1023.0f;
dst->z = normal[2] / 511.0f;
src += stride;
dst++;
}
else
assert(0 && "unsupported uninstV3d type");
}
void
instTexCoords(int type, uint8 *dst, TexCoords *src, uint32 numVertices, uint32 stride)
{
assert(type == VERT_FLOAT2);
for(uint32 i = 0; i < numVertices; i++){
memcpy(dst, src, 8);
dst += stride;
src++;
}
}
void
uninstTexCoords(int type, TexCoords *dst, uint8 *src, uint32 numVertices, uint32 stride)
{
assert(type == VERT_FLOAT2);
for(uint32 i = 0; i < numVertices; i++){
memcpy(dst, src, 8);
src += stride;
dst++;
}
}
bool32
instColor(int type, uint8 *dst, RGBA *src, uint32 numVertices, uint32 stride)
{
uint8 alpha = 0xFF;
if(type == VERT_ARGB){
for(uint32 i = 0; i < numVertices; i++){
dst[0] = src->blue;
dst[1] = src->green;
dst[2] = src->red;
dst[3] = src->alpha;
alpha &= src->alpha;
dst += stride;
src++;
}
}else if(type == VERT_RGBA){
for(uint32 i = 0; i < numVertices; i++){
dst[0] = src->red;
dst[1] = src->green;
dst[2] = src->blue;
dst[3] = src->alpha;
alpha &= src->alpha;
dst += stride;
src++;
}
}else
assert(0 && "unsupported color type");
return alpha != 0xFF;
}
void
uninstColor(int type, RGBA *dst, uint8 *src, uint32 numVertices, uint32 stride)
{
assert(type == VERT_ARGB);
for(uint32 i = 0; i < numVertices; i++){
dst->red = src[2];
dst->green = src[1];
dst->blue = src[0];
dst->alpha = src[3];
src += stride;
dst++;
}
}
}
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