104 lines
2.1 KiB
C++
104 lines
2.1 KiB
C++
#include "RenderPCH.h"
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#include "nvparse.h"
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#include "ts1.0_inst_list.h"
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const int instListInc = 4;
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InstList::InstList()
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{
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size = 0;
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max = instListInc;
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list = (InstPtr)malloc(sizeof(Inst) * max);
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}
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InstList::~InstList()
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{
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free(list);
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}
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int InstList::Size()
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{
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return size;
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}
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InstList& InstList::operator+=(InstPtr t)
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{
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if (size == max) {
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/* Extend list size by instListInc amount */
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max += instListInc;
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list = (InstPtr)realloc(list, sizeof(Inst) * max);
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}
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list[size++] = *t;
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return *this;
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}
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void InstList::Invoke()
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{
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int i;
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for (i = 0; i < size; i++) {
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// set active texture
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glActiveTextureARB(GL_TEXTURE0_ARB + i);
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list[i].Invoke();
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}
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// Reset active texture to unit 0
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// Could do a glGet to figure out what the initial active texunit was,
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// and reset to that, but the glGet would not behave well within
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// a display list...
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glActiveTextureARB(GL_TEXTURE0_ARB);
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}
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void InstList::Validate()
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{
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if (size > TSP_NUM_TEXTURE_UNITS)
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errors.set("too many instructions");
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int i;
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for (i = 0; i < size; i++) {
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int stage = list[i].opcode.bits.stage;
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if (stage > i)
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errors.set("prior stage missing");
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if (list[i].opcode.bits.instruction != list[i - stage].opcode.bits.instruction)
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errors.set("stage mismatch");
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if (list[i].opcode.bits.dependent) {
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int previousTexture = (int)list[i].args[0];
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if (previousTexture >= i - stage)
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errors.set("invalid texture reference");
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if (list[previousTexture].opcode.bits.noOutput)
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errors.set("no output on referenced texture");
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}
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}
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// Assign remaining undesignated texture units to nop
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for (; i < TSP_NUM_TEXTURE_UNITS; i++) {
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InstPtr nopInst = new Inst(TSP_NOP);
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*this += nopInst;
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delete nopInst;
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}
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}
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bool is_ts10(const char * s)
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{
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return ! strncmp(s, "!!TS1.0", 7);
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}
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bool ts10_init_more()
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{
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static bool tsinit = false;
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if (tsinit == false )
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{
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if(!SUPPORTS_GL_NV_texture_shader || !SUPPORTS_GL_ARB_multitexture)
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{
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errors.set("unable to initialize GL_NV_texture_shader\n");
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return false;
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}
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else
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{
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tsinit = true;
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}
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}
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errors.reset();
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line_number = 1;
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return true;
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}
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