958 lines
27 KiB
C
958 lines
27 KiB
C
#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdlib.h>
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#include "../include/gl.h"
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#include "../include/glext.h"
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#include "private.h"
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#include "profiler.h"
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typedef struct {
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const void* ptr;
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GLenum type;
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GLsizei stride;
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GLint size;
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} AttribPointer;
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static AttribPointer VERTEX_POINTER;
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static AttribPointer UV_POINTER;
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static AttribPointer ST_POINTER;
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static AttribPointer NORMAL_POINTER;
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static AttribPointer DIFFUSE_POINTER;
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#define VERTEX_ENABLED_FLAG (1 << 0)
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#define UV_ENABLED_FLAG (1 << 1)
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#define ST_ENABLED_FLAG (1 << 2)
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#define DIFFUSE_ENABLED_FLAG (1 << 3)
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#define NORMAL_ENABLED_FLAG (1 << 4)
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static GLuint ENABLED_VERTEX_ATTRIBUTES = 0;
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static GLubyte ACTIVE_CLIENT_TEXTURE = 0;
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void initAttributePointers() {
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TRACE();
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VERTEX_POINTER.ptr = NULL;
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VERTEX_POINTER.stride = 0;
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VERTEX_POINTER.type = GL_FLOAT;
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VERTEX_POINTER.size = 4;
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DIFFUSE_POINTER.ptr = NULL;
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DIFFUSE_POINTER.stride = 0;
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DIFFUSE_POINTER.type = GL_FLOAT;
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DIFFUSE_POINTER.size = 4;
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UV_POINTER.ptr = NULL;
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UV_POINTER.stride = 0;
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UV_POINTER.type = GL_FLOAT;
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UV_POINTER.size = 4;
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ST_POINTER.ptr = NULL;
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ST_POINTER.stride = 0;
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ST_POINTER.type = GL_FLOAT;
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ST_POINTER.size = 4;
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NORMAL_POINTER.ptr = NULL;
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NORMAL_POINTER.stride = 0;
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NORMAL_POINTER.type = GL_FLOAT;
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NORMAL_POINTER.size = 3;
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}
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static inline GLuint byte_size(GLenum type) {
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switch(type) {
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case GL_BYTE: return sizeof(GLbyte);
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case GL_UNSIGNED_BYTE: return sizeof(GLubyte);
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case GL_SHORT: return sizeof(GLshort);
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case GL_UNSIGNED_SHORT: return sizeof(GLushort);
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case GL_INT: return sizeof(GLint);
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case GL_UNSIGNED_INT: return sizeof(GLuint);
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case GL_DOUBLE: return sizeof(GLdouble);
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case GL_FLOAT:
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default: return sizeof(GLfloat);
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}
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}
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typedef void (*FloatParseFunc)(GLfloat* out, const GLubyte* in);
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typedef void (*PolyBuildFunc)(ClipVertex* first, ClipVertex* previous, ClipVertex* vertex, ClipVertex* next, const GLsizei i);
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static inline void _parseVec3FromShort3(GLfloat* out, const GLubyte* in) {
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GLshort* ptr = (GLshort*) in;
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out[0] = (GLfloat) ptr[0];
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out[1] = (GLfloat) ptr[1];
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out[2] = (GLfloat) ptr[2];
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}
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static inline void _parseVec3FromInt3(GLfloat* out, const GLubyte* in) {
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GLint* ptr = (GLint*) in;
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out[0] = (GLfloat) ptr[0];
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out[1] = (GLfloat) ptr[1];
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out[2] = (GLfloat) ptr[2];
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}
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static inline void _parseVec3FromFloat3(GLfloat* out, const GLubyte* in) {
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GLfloat* ptr = (GLfloat*) in;
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out[0] = ptr[0];
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out[1] = ptr[1];
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out[2] = ptr[2];
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}
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static inline void _parseVec2FromFloat2(GLfloat* out, const GLubyte* in) {
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GLfloat* ptr = (GLfloat*) in;
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out[0] = ptr[0];
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out[1] = ptr[1];
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}
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static inline void _parseVec3FromFloat2(GLfloat* out, const GLubyte* in) {
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GLfloat* ptr = (GLfloat*) in;
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out[0] = ptr[0];
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out[1] = ptr[1];
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out[2] = 0.0f;
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}
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static inline void _parseVec4FromFloat3(GLfloat* out, const GLubyte* in) {
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GLfloat* ptr = (GLfloat*) in;
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out[0] = ptr[0];
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out[1] = ptr[1];
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out[2] = ptr[2];
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out[3] = 1.0;
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}
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static inline void _parseVec4FromFloat4(GLfloat* out, const GLubyte* in) {
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GLfloat* ptr = (GLfloat*) in;
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out[0] = ptr[0];
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out[1] = ptr[1];
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out[2] = ptr[2];
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out[3] = ptr[3];
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}
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static inline void _parseColourFromUByte4(GLfloat* out, const GLubyte* in) {
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const float ONE_OVER_255 = 1.0f / 255.0f;
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out[0] = ((GLfloat) in[0]) * ONE_OVER_255;
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out[1] = ((GLfloat) in[1]) * ONE_OVER_255;
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out[2] = ((GLfloat) in[2]) * ONE_OVER_255;
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out[3] = ((GLfloat) in[3]) * ONE_OVER_255;
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}
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static inline void _constVec2Zero(GLfloat* out, const GLubyte* in) {
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out[0] = 0.0f;
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out[1] = 0.0f;
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}
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static inline void _constVec3NegZ(GLfloat* out, const GLubyte* in) {
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out[0] = 0.0f;
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out[1] = 0.0f;
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out[2] = -1.0f;
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}
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static inline void _constVec4One(GLfloat* out, const GLubyte* in) {
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out[0] = 1.0f;
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out[1] = 1.0f;
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out[2] = 1.0f;
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out[3] = 1.0f;
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}
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typedef GLuint (*IndexParseFunc)(const GLubyte* in);
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static inline GLuint _parseUByteIndex(const GLubyte* in) {
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return (GLuint) *in;
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}
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static inline GLuint _parseUIntIndex(const GLubyte* in) {
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return *((GLuint*) in);
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}
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static inline GLuint _parseUShortIndex(const GLubyte* in) {
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return *((GLshort*) in);
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}
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static inline IndexParseFunc _calcParseIndexFunc(GLenum type) {
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switch(type) {
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case GL_UNSIGNED_BYTE:
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return &_parseUByteIndex;
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break;
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case GL_UNSIGNED_INT:
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return &_parseUIntIndex;
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break;
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case GL_UNSIGNED_SHORT:
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default:
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break;
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}
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return &_parseUShortIndex;
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}
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/* There was a bug in this macro that shipped with Kos
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* which has now been fixed. But just in case...
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*/
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#undef mat_trans_single3_nodiv
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#define mat_trans_single3_nodiv(x, y, z) { \
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register float __x __asm__("fr12") = (x); \
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register float __y __asm__("fr13") = (y); \
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register float __z __asm__("fr14") = (z); \
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__asm__ __volatile__( \
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"fldi1 fr15\n" \
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"ftrv xmtrx, fv12\n" \
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: "=f" (__x), "=f" (__y), "=f" (__z) \
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: "0" (__x), "1" (__y), "2" (__z) \
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: "fr15"); \
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x = __x; y = __y; z = __z; \
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}
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/* FIXME: Is this right? Shouldn't it be fr12->15? */
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#undef mat_trans_normal3
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#define mat_trans_normal3(x, y, z) { \
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register float __x __asm__("fr8") = (x); \
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register float __y __asm__("fr9") = (y); \
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register float __z __asm__("fr10") = (z); \
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__asm__ __volatile__( \
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"fldi0 fr11\n" \
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"ftrv xmtrx, fv8\n" \
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: "=f" (__x), "=f" (__y), "=f" (__z) \
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: "0" (__x), "1" (__y), "2" (__z) \
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: "fr11"); \
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x = __x; y = __y; z = __z; \
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}
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static inline void transformToEyeSpace(GLfloat* point) {
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_matrixLoadModelView();
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mat_trans_single3_nodiv(point[0], point[1], point[2]);
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}
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static inline void transformNormalToEyeSpace(GLfloat* normal) {
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_matrixLoadNormal();
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mat_trans_normal3(normal[0], normal[1], normal[2]);
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}
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static inline void swapVertex(ClipVertex* v1, ClipVertex* v2) {
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static ClipVertex tmp;
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tmp = *v1;
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*v1 = *v2;
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*v2 = tmp;
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}
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static inline FloatParseFunc _calcVertexParseFunc() {
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switch(VERTEX_POINTER.type) {
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case GL_SHORT: {
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if(VERTEX_POINTER.size == 3) {
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return &_parseVec3FromShort3;
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}
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} break;
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case GL_INT: {
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if(VERTEX_POINTER.size == 3) {
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return &_parseVec3FromInt3;
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}
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} break;
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case GL_FLOAT: {
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if(VERTEX_POINTER.size == 3) {
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return &_parseVec3FromFloat3;
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} else if(VERTEX_POINTER.size == 2) {
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return &_parseVec3FromFloat2;
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}
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} break;
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default:
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break;
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}
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return NULL;
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}
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static inline FloatParseFunc _calcDiffuseParseFunc() {
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if((ENABLED_VERTEX_ATTRIBUTES & DIFFUSE_ENABLED_FLAG) != DIFFUSE_ENABLED_FLAG) {
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return &_constVec4One;
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}
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switch(DIFFUSE_POINTER.type) {
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case GL_BYTE:
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case GL_UNSIGNED_BYTE: {
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if(DIFFUSE_POINTER.size == 4) {
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return &_parseColourFromUByte4;
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}
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} break;
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case GL_INT: {
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if(DIFFUSE_POINTER.size == 3) {
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return &_parseVec3FromInt3;
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}
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} break;
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case GL_FLOAT: {
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if(DIFFUSE_POINTER.size == 3) {
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return &_parseVec4FromFloat3;
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} else if(DIFFUSE_POINTER.size == 4) {
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return &_parseVec4FromFloat4;
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}
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} break;
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default:
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break;
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}
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return &_constVec4One;
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}
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static inline FloatParseFunc _calcUVParseFunc() {
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if((ENABLED_VERTEX_ATTRIBUTES & UV_ENABLED_FLAG) != UV_ENABLED_FLAG) {
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return &_constVec2Zero;
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}
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switch(UV_POINTER.type) {
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case GL_FLOAT: {
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if(UV_POINTER.size == 2) {
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return &_parseVec2FromFloat2;
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}
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} break;
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default:
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break;
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}
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return &_constVec2Zero;
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}
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static inline FloatParseFunc _calcSTParseFunc() {
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if((ENABLED_VERTEX_ATTRIBUTES & ST_ENABLED_FLAG) != ST_ENABLED_FLAG) {
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return &_constVec2Zero;
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}
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switch(ST_POINTER.type) {
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case GL_FLOAT: {
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if(ST_POINTER.size == 2) {
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return &_parseVec2FromFloat2;
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}
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} break;
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default:
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break;
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}
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return &_constVec2Zero;
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}
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static inline FloatParseFunc _calcNormalParseFunc() {
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if((ENABLED_VERTEX_ATTRIBUTES & NORMAL_ENABLED_FLAG) != NORMAL_ENABLED_FLAG) {
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return &_constVec3NegZ;
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}
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switch(NORMAL_POINTER.type) {
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case GL_SHORT: {
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if(NORMAL_POINTER.size == 3) {
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return &_parseVec3FromShort3;
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}
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} break;
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case GL_INT: {
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if(NORMAL_POINTER.size == 3) {
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return &_parseVec3FromInt3;
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}
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} break;
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case GL_FLOAT: {
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if(NORMAL_POINTER.size == 3) {
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return &_parseVec3FromFloat3;
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} else if(NORMAL_POINTER.size == 2) {
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return &_parseVec3FromFloat2;
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}
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} break;
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default:
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break;
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}
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return &_constVec3NegZ;
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}
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static void _buildTriangle(ClipVertex* first, ClipVertex* previous, ClipVertex* vertex, ClipVertex* next, const GLsizei i) {
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if(((i + 1) % 3) == 0) {
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vertex->flags = PVR_CMD_VERTEX_EOL;
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}
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}
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static inline GLsizei fast_mod(const GLsizei input, const GLsizei ceil) {
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return input >= ceil ? input % ceil : input;
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}
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static void _buildQuad(ClipVertex* first, ClipVertex* previous, ClipVertex* vertex, ClipVertex* next, const GLsizei i) {
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if((i + 1) % 4 == 0) {
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previous->flags = PVR_CMD_VERTEX_EOL;
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swapVertex(previous, vertex);
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}
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}
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static void _buildTriangleFan(ClipVertex* first, ClipVertex* previous, ClipVertex* vertex, ClipVertex* next, const GLsizei i) {
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if(i == 2) {
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swapVertex(previous, vertex);
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vertex->flags = PVR_CMD_VERTEX_EOL;
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} else if(i > 2) {
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ClipVertex* next = vertex + 1;
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*next = *first;
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swapVertex(next, vertex);
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vertex = next + 1;
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*vertex = *previous;
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vertex->flags = PVR_CMD_VERTEX_EOL;
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}
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}
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static void _buildStrip(ClipVertex* first, ClipVertex* previous, ClipVertex* vertex, ClipVertex* next, const GLsizei i) {
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if(!next) {
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/* If the mode was triangle strip, then the last vertex is the last vertex */
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vertex->flags = PVR_CMD_VERTEX_EOL;
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}
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}
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static inline PolyBuildFunc _calcBuildFunc(const GLenum type) {
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switch(type) {
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case GL_TRIANGLES:
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return &_buildTriangle;
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break;
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case GL_QUADS:
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return &_buildQuad;
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break;
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case GL_TRIANGLE_FAN:
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case GL_POLYGON:
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return &_buildTriangleFan;
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break;
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default:
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break;
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}
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return &_buildStrip;
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}
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typedef struct {
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const GLubyte* vptr;
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const GLuint vstride;
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const GLubyte* cptr;
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const GLuint cstride;
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const GLubyte* uvptr;
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const GLuint uvstride;
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const GLubyte* stptr;
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const GLuint ststride;
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const GLubyte* nptr;
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const GLuint nstride;
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} GenerateParams;
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static void generate(AlignedVector* output, const GLenum mode, const GLsizei first, const GLsizei count,
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const GLubyte* indices, const GLenum type, const GenerateParams* pointers) {
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/* Read from the client buffers and generate an array of ClipVertices */
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const GLsizei max = first + count;
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const GLsizei spaceNeeded = (mode == GL_POLYGON || mode == GL_TRIANGLE_FAN) ? ((count - 2) * 3) : count;
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/* Make sure we have room for the output */
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ClipVertex* vertex = aligned_vector_resize(output, spaceNeeded);
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const FloatParseFunc vertexFunc = _calcVertexParseFunc();
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const FloatParseFunc diffuseFunc = _calcDiffuseParseFunc();
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const FloatParseFunc uvFunc = _calcUVParseFunc();
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const FloatParseFunc stFunc = _calcSTParseFunc();
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const FloatParseFunc normalFunc = _calcNormalParseFunc();
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const PolyBuildFunc buildFunc = _calcBuildFunc(mode);
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const IndexParseFunc indexFunc = _calcParseIndexFunc(type);
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const GLsizei type_byte_size = byte_size(type);
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ClipVertex* previous = NULL;
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ClipVertex* firstV = vertex;
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ClipVertex* next = NULL;
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GLsizei i;
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for(i = first; i < max; ++i, ++vertex) {
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vertex->flags = PVR_CMD_VERTEX;
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const GLuint idx = (indices) ?
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indexFunc(&indices[type_byte_size * i]) : i;
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const GLubyte* vin = pointers->vptr + (idx * pointers->vstride);
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const GLubyte* din = pointers->cptr + (idx * pointers->cstride);
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const GLubyte* uin = pointers->uvptr + (idx * pointers->uvstride);
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const GLubyte* sin = pointers->stptr + (idx * pointers->ststride);
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const GLubyte* nin = pointers->nptr + (idx * pointers->nstride);
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vertexFunc(vertex->xyz, vin);
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diffuseFunc(vertex->diffuse, din);
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uvFunc(vertex->uv, uin);
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stFunc(vertex->st, sin);
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normalFunc(vertex->nxyz, nin);
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}
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vertex = firstV;
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for(i = 0; i < count; ++i, ++vertex) {
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next = (i < count - 1) ? vertex + 1 : NULL;
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previous = (i > 0) ? vertex - 1 : NULL;
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buildFunc(firstV, previous, vertex, next, i);
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}
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}
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static void transform(AlignedVector* vertices) {
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/* Perform modelview transform, storing W */
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ClipVertex* vertex = (ClipVertex*) vertices->data;
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_applyRenderMatrix(); /* Apply the Render Matrix Stack */
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GLsizei i;
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for(i = 0; i < vertices->size; ++i, ++vertex) {
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register float __x __asm__("fr12") = (vertex->xyz[0]);
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register float __y __asm__("fr13") = (vertex->xyz[1]);
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register float __z __asm__("fr14") = (vertex->xyz[2]);
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register float __w __asm__("fr15");
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__asm__ __volatile__(
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"fldi1 fr15\n"
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"ftrv xmtrx,fv12\n"
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: "=f" (__x), "=f" (__y), "=f" (__z), "=f" (__w)
|
|
: "0" (__x), "1" (__y), "2" (__z), "3" (__w)
|
|
);
|
|
|
|
vertex->xyz[0] = __x;
|
|
vertex->xyz[1] = __y;
|
|
vertex->xyz[2] = __z;
|
|
vertex->w = __w;
|
|
}
|
|
}
|
|
|
|
static void clip(AlignedVector* vertices) {
|
|
/* Perform clipping, generating new vertices as necessary */
|
|
|
|
static AlignedVector* CLIP_BUFFER = NULL;
|
|
|
|
/* First entry into this, allocate the clip buffer */
|
|
if(!CLIP_BUFFER) {
|
|
CLIP_BUFFER = (AlignedVector*) malloc(sizeof(AlignedVector));
|
|
aligned_vector_init(CLIP_BUFFER, sizeof(ClipVertex));
|
|
}
|
|
|
|
/* Make sure we allocate roughly enough space */
|
|
aligned_vector_reserve(CLIP_BUFFER, vertices->size * 1.5);
|
|
|
|
/* Start from empty */
|
|
aligned_vector_resize(CLIP_BUFFER, 0);
|
|
|
|
/* Now perform clipping! */
|
|
clipTriangleStrip(vertices, CLIP_BUFFER);
|
|
|
|
/* Copy the clip buffer over the vertices */
|
|
aligned_vector_resize(vertices, CLIP_BUFFER->size);
|
|
memcpy(vertices->data, CLIP_BUFFER->data, CLIP_BUFFER->size * CLIP_BUFFER->element_size);
|
|
}
|
|
|
|
static void mat_transform3(const float* xyz, const float* xyzOut, const uint32_t count, const uint32_t stride) {
|
|
uint8_t* dataIn = (uint8_t*) xyz;
|
|
uint8_t* dataOut = (uint8_t*) xyzOut;
|
|
uint32_t i = count;
|
|
|
|
while(i--) {
|
|
float* in = (float*) dataIn;
|
|
float* out = (float*) dataOut;
|
|
|
|
mat_trans_single3_nodiv_nomod(in[0], in[1], in[2], out[0], out[1], out[2]);
|
|
|
|
dataIn += stride;
|
|
dataOut += stride;
|
|
}
|
|
}
|
|
|
|
static void mat_transform_normal3(const float* xyz, const float* xyzOut, const uint32_t count, const uint32_t stride) {
|
|
uint8_t* dataIn = (uint8_t*) xyz;
|
|
uint8_t* dataOut = (uint8_t*) xyzOut;
|
|
uint32_t i = count;
|
|
|
|
while(i--) {
|
|
float* in = (float*) dataIn;
|
|
float* out = (float*) dataOut;
|
|
|
|
mat_trans_normal3_nomod(in[0], in[1], in[2], out[0], out[1], out[2]);
|
|
|
|
dataIn += stride;
|
|
dataOut += stride;
|
|
}
|
|
}
|
|
|
|
static void light(AlignedVector* vertices) {
|
|
if(!isLightingEnabled()) {
|
|
return;
|
|
}
|
|
|
|
/* Perform lighting calculations and manipulate the colour */
|
|
ClipVertex* vertex = (ClipVertex*) vertices->data;
|
|
|
|
_matrixLoadModelView();
|
|
mat_transform3(vertex->xyz, vertex->xyzES, vertices->size, sizeof(ClipVertex));
|
|
|
|
_matrixLoadNormal();
|
|
mat_transform_normal3(vertex->nxyz, vertex->nES, vertices->size, sizeof(ClipVertex));
|
|
|
|
GLsizei i;
|
|
for(i = 0; i < vertices->size; ++i, ++vertex) {
|
|
/* We ignore diffuse colour when lighting is enabled. If GL_COLOR_MATERIAL is enabled
|
|
* then the lighting calculation should possibly take it into account */
|
|
memset(vertex->diffuse, 0, sizeof(float) * 4);
|
|
|
|
GLfloat to_add [] = {0.0f, 0.0f, 0.0f, 0.0f};
|
|
|
|
GLubyte j;
|
|
for(j = 0; j < MAX_LIGHTS; ++j) {
|
|
if(isLightEnabled(j)) {
|
|
calculateLightingContribution(j, vertex->xyzES, vertex->nES, to_add);
|
|
|
|
vertex->diffuse[0] += to_add[0];
|
|
vertex->diffuse[1] += to_add[1];
|
|
vertex->diffuse[2] += to_add[2];
|
|
vertex->diffuse[3] += to_add[3];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void divide(AlignedVector* vertices) {
|
|
/* Perform perspective divide on each vertex */
|
|
ClipVertex* vertex = (ClipVertex*) vertices->data;
|
|
|
|
GLsizei i;
|
|
for(i = 0; i < vertices->size; ++i, ++vertex) {
|
|
vertex->xyz[2] = 1.0f / vertex->w;
|
|
vertex->xyz[0] *= vertex->xyz[2];
|
|
vertex->xyz[1] *= vertex->xyz[2];
|
|
}
|
|
}
|
|
|
|
typedef struct {
|
|
unsigned int list_type;
|
|
pvr_poly_hdr_t hdr;
|
|
} ListToHeader;
|
|
|
|
|
|
#define MAX_LISTS 5
|
|
|
|
static void push(const AlignedVector* vertices, PolyList* activePolyList, GLshort textureUnit) {
|
|
/* Copy the vertices to the active poly list */
|
|
|
|
static GLuint LIST_COUNTER = 0;
|
|
static ListToHeader LAST_HEADERS[MAX_LISTS];
|
|
|
|
/* If the list was empty, this is the first submission this frame so we
|
|
* always send the header in this case */
|
|
GLboolean listWasEmpty = activePolyList->vector.size > 0;
|
|
|
|
// Make room for the element + the header
|
|
PVRCommand* dst = (PVRCommand*) aligned_vector_extend(&activePolyList->vector, vertices->size);
|
|
|
|
// Store a pointer to the header
|
|
pvr_poly_hdr_t* hdr = (pvr_poly_hdr_t*) dst;
|
|
|
|
// Compile
|
|
pvr_poly_cxt_t cxt = *getPVRContext();
|
|
cxt.list_type = activePolyList->list_type;
|
|
|
|
_glUpdatePVRTextureContext(&cxt, textureUnit);
|
|
|
|
pvr_poly_compile(hdr, &cxt);
|
|
|
|
/* We store a list of the last "hdr" to be submitted for a list, and then compare before
|
|
* specifying another one. Apparently it's quite slow to change header
|
|
*/
|
|
|
|
GLuint c;
|
|
GLboolean sendHeader = GL_FALSE;
|
|
GLboolean listFound = GL_FALSE;
|
|
|
|
for(c = 0; c < LIST_COUNTER; ++c) {
|
|
if(LAST_HEADERS[c].list_type == activePolyList->list_type) {
|
|
/* Send the header if this was the first submission to this list, or the header has changed since
|
|
* the last sent */
|
|
sendHeader = listWasEmpty || memcmp(&LAST_HEADERS[c].hdr, &hdr, sizeof(pvr_poly_hdr_t)) != 0;
|
|
listFound = GL_TRUE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(!listFound) {
|
|
if(LIST_COUNTER == MAX_LISTS) {
|
|
fprintf(stderr, "Ran out of space!\n");
|
|
}
|
|
/* First time we've seen this list, add it to the array */
|
|
LAST_HEADERS[LIST_COUNTER].list_type = activePolyList->list_type;
|
|
LAST_HEADERS[LIST_COUNTER++].hdr = *hdr;
|
|
|
|
/* Send the header the first time */
|
|
sendHeader = GL_TRUE;
|
|
}
|
|
|
|
if(sendHeader) {
|
|
// Point dest at the first new vertex to populate, if we're not sending a header
|
|
// we won't increment and instead overwrite the header we just created with the
|
|
// first vertex
|
|
dst++;
|
|
|
|
// Add one more to the list
|
|
aligned_vector_extend(&activePolyList->vector, 1);
|
|
}
|
|
|
|
GLsizei i;
|
|
ClipVertex* vin = aligned_vector_at(vertices, 0);
|
|
|
|
for(i = 0; i < vertices->size; ++i, dst++) {
|
|
pvr_vertex_t* vout = (pvr_vertex_t*) dst;
|
|
vout->flags = vin->flags;
|
|
vout->x = vin->xyz[0];
|
|
vout->y = vin->xyz[1];
|
|
vout->z = vin->xyz[2];
|
|
vout->u = vin->uv[0];
|
|
vout->v = vin->uv[1];
|
|
vout->argb = PVR_PACK_COLOR(vin->diffuse[3], vin->diffuse[0], vin->diffuse[1], vin->diffuse[2]);
|
|
vout->oargb = 0;
|
|
|
|
vin++;
|
|
}
|
|
}
|
|
|
|
static void submitVertices(GLenum mode, GLsizei first, GLsizei count, GLenum type, const GLvoid* indices) {
|
|
static AlignedVector* buffer = NULL;
|
|
|
|
/* Do nothing if vertices aren't enabled */
|
|
if(!(ENABLED_VERTEX_ATTRIBUTES & VERTEX_ENABLED_FLAG)) {
|
|
return;
|
|
}
|
|
|
|
/* Initialize the buffer on first call */
|
|
if(!buffer) {
|
|
buffer = (AlignedVector*) malloc(sizeof(AlignedVector));
|
|
aligned_vector_init(buffer, sizeof(ClipVertex));
|
|
|
|
/* Reserve 64k up-front */
|
|
aligned_vector_reserve(buffer, 64 * 1024);
|
|
} else {
|
|
/* Else, resize to zero (this will retain the allocated memory) */
|
|
aligned_vector_resize(buffer, 0);
|
|
}
|
|
|
|
const GLuint vstride = (VERTEX_POINTER.stride) ? VERTEX_POINTER.stride : VERTEX_POINTER.size * byte_size(VERTEX_POINTER.type);
|
|
const GLubyte* vptr = VERTEX_POINTER.ptr;
|
|
|
|
const GLuint cstride = (DIFFUSE_POINTER.stride) ? DIFFUSE_POINTER.stride : DIFFUSE_POINTER.size * byte_size(DIFFUSE_POINTER.type);
|
|
const GLubyte* cptr = DIFFUSE_POINTER.ptr;
|
|
|
|
const GLuint uvstride = (UV_POINTER.stride) ? UV_POINTER.stride : UV_POINTER.size * byte_size(UV_POINTER.type);
|
|
const GLubyte* uvptr = UV_POINTER.ptr;
|
|
|
|
const GLuint ststride = (ST_POINTER.stride) ? ST_POINTER.stride : ST_POINTER.size * byte_size(ST_POINTER.type);
|
|
const GLubyte* stptr = ST_POINTER.ptr;
|
|
|
|
const GLuint nstride = (NORMAL_POINTER.stride) ? NORMAL_POINTER.stride : NORMAL_POINTER.size * byte_size(NORMAL_POINTER.type);
|
|
const GLubyte* nptr = NORMAL_POINTER.ptr;
|
|
|
|
GenerateParams params = {
|
|
.vptr = vptr,
|
|
.vstride = vstride,
|
|
.cptr = cptr,
|
|
.cstride = cstride,
|
|
.uvptr = uvptr,
|
|
.uvstride = uvstride,
|
|
.stptr = stptr,
|
|
.ststride = ststride,
|
|
.nptr = nptr,
|
|
.nstride = nstride
|
|
};
|
|
|
|
generate(buffer, mode, first, count, (GLubyte*) indices, type, ¶ms);
|
|
|
|
light(buffer);
|
|
|
|
transform(buffer);
|
|
|
|
if(isClippingEnabled()) {
|
|
clip(buffer);
|
|
}
|
|
|
|
divide(buffer);
|
|
|
|
push(buffer, activePolyList(), 0);
|
|
|
|
/*
|
|
Now, if multitexturing is enabled, we want to send exactly the same vertices again, except:
|
|
- We want to enable blending, and send them to the TR list
|
|
- We want to set the depth func to GL_EQUAL
|
|
- We want to set the second texture ID
|
|
- We want to set the uv coordinates to the passed st ones
|
|
*/
|
|
|
|
GLboolean doMultitexture;
|
|
glGetBooleanv(GL_TEXTURE_2D, &doMultitexture);
|
|
|
|
if(!doMultitexture) {
|
|
/* Multitexture actively disabled */
|
|
return;
|
|
}
|
|
|
|
TextureObject* texture1 = getTexture1();
|
|
|
|
if(!texture1 || ((ENABLED_VERTEX_ATTRIBUTES & ST_ENABLED_FLAG) != ST_ENABLED_FLAG)) {
|
|
/* Multitexture implicitly disabled */
|
|
return;
|
|
}
|
|
|
|
ClipVertex* vertex = (ClipVertex*) aligned_vector_at(buffer, 0);
|
|
|
|
/* Copy ST coordinates to UV ones */
|
|
GLsizei i = 0;
|
|
for(; i < buffer->size; ++i, ++vertex) {
|
|
vertex->uv[0] = vertex->st[0];
|
|
vertex->uv[1] = vertex->st[1];
|
|
}
|
|
|
|
/* Store state, as we're about to mess around with it */
|
|
GLint depthFunc, blendSrc, blendDst;
|
|
glGetIntegerv(GL_DEPTH_FUNC, &depthFunc);
|
|
glGetIntegerv(GL_BLEND_SRC, &blendSrc);
|
|
glGetIntegerv(GL_BLEND_DST, &blendDst);
|
|
|
|
GLboolean blendEnabled = glIsEnabled(GL_BLEND);
|
|
GLboolean depthEnabled = glIsEnabled(GL_DEPTH_TEST);
|
|
|
|
glDepthFunc(GL_EQUAL);
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
/* Send the buffer again to the transparent list */
|
|
push(buffer, transparentPolyList(), 1);
|
|
|
|
/* Reset state */
|
|
glDepthFunc(depthFunc);
|
|
glBlendFunc(blendSrc, blendDst);
|
|
(blendEnabled) ? glEnable(GL_BLEND) : glDisable(GL_BLEND);
|
|
(depthEnabled) ? glEnable(GL_DEPTH_TEST) : glDisable(GL_DEPTH_TEST);
|
|
}
|
|
|
|
void APIENTRY glDrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid* indices) {
|
|
TRACE();
|
|
|
|
if(checkImmediateModeInactive(__func__)) {
|
|
return;
|
|
}
|
|
|
|
submitVertices(mode, 0, count, type, indices);
|
|
}
|
|
|
|
void APIENTRY glDrawArrays(GLenum mode, GLint first, GLsizei count) {
|
|
TRACE();
|
|
|
|
if(checkImmediateModeInactive(__func__)) {
|
|
return;
|
|
}
|
|
|
|
submitVertices(mode, first, count, GL_UNSIGNED_SHORT, NULL);
|
|
}
|
|
|
|
void APIENTRY glEnableClientState(GLenum cap) {
|
|
TRACE();
|
|
|
|
switch(cap) {
|
|
case GL_VERTEX_ARRAY:
|
|
ENABLED_VERTEX_ATTRIBUTES |= VERTEX_ENABLED_FLAG;
|
|
break;
|
|
case GL_COLOR_ARRAY:
|
|
ENABLED_VERTEX_ATTRIBUTES |= DIFFUSE_ENABLED_FLAG;
|
|
break;
|
|
case GL_NORMAL_ARRAY:
|
|
ENABLED_VERTEX_ATTRIBUTES |= NORMAL_ENABLED_FLAG;
|
|
break;
|
|
case GL_TEXTURE_COORD_ARRAY:
|
|
(ACTIVE_CLIENT_TEXTURE) ?
|
|
(ENABLED_VERTEX_ATTRIBUTES |= ST_ENABLED_FLAG):
|
|
(ENABLED_VERTEX_ATTRIBUTES |= UV_ENABLED_FLAG);
|
|
break;
|
|
default:
|
|
_glKosThrowError(GL_INVALID_ENUM, "glEnableClientState");
|
|
}
|
|
}
|
|
|
|
void APIENTRY glDisableClientState(GLenum cap) {
|
|
TRACE();
|
|
|
|
switch(cap) {
|
|
case GL_VERTEX_ARRAY:
|
|
ENABLED_VERTEX_ATTRIBUTES &= ~VERTEX_ENABLED_FLAG;
|
|
break;
|
|
case GL_COLOR_ARRAY:
|
|
ENABLED_VERTEX_ATTRIBUTES &= ~DIFFUSE_ENABLED_FLAG;
|
|
break;
|
|
case GL_NORMAL_ARRAY:
|
|
ENABLED_VERTEX_ATTRIBUTES &= ~NORMAL_ENABLED_FLAG;
|
|
break;
|
|
case GL_TEXTURE_COORD_ARRAY:
|
|
(ACTIVE_CLIENT_TEXTURE) ?
|
|
(ENABLED_VERTEX_ATTRIBUTES &= ~ST_ENABLED_FLAG):
|
|
(ENABLED_VERTEX_ATTRIBUTES &= ~UV_ENABLED_FLAG);
|
|
break;
|
|
default:
|
|
_glKosThrowError(GL_INVALID_ENUM, "glDisableClientState");
|
|
}
|
|
}
|
|
|
|
void APIENTRY glClientActiveTextureARB(GLenum texture) {
|
|
TRACE();
|
|
|
|
if(texture < GL_TEXTURE0_ARB || texture > GL_TEXTURE0_ARB + MAX_TEXTURE_UNITS) {
|
|
_glKosThrowError(GL_INVALID_ENUM, "glClientActiveTextureARB");
|
|
}
|
|
|
|
if(_glKosHasError()) {
|
|
_glKosPrintError();
|
|
return;
|
|
}
|
|
|
|
ACTIVE_CLIENT_TEXTURE = (texture == GL_TEXTURE1_ARB) ? 1 : 0;
|
|
}
|
|
|
|
void APIENTRY glTexCoordPointer(GLint size, GLenum type, GLsizei stride, const GLvoid * pointer) {
|
|
TRACE();
|
|
|
|
AttribPointer* tointer = (ACTIVE_CLIENT_TEXTURE == 0) ? &UV_POINTER : &ST_POINTER;
|
|
|
|
tointer->ptr = pointer;
|
|
tointer->stride = stride;
|
|
tointer->type = type;
|
|
tointer->size = size;
|
|
}
|
|
|
|
void APIENTRY glVertexPointer(GLint size, GLenum type, GLsizei stride, const GLvoid * pointer) {
|
|
TRACE();
|
|
|
|
VERTEX_POINTER.ptr = pointer;
|
|
VERTEX_POINTER.stride = stride;
|
|
VERTEX_POINTER.type = type;
|
|
VERTEX_POINTER.size = size;
|
|
}
|
|
|
|
void APIENTRY glColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid * pointer) {
|
|
TRACE();
|
|
|
|
DIFFUSE_POINTER.ptr = pointer;
|
|
DIFFUSE_POINTER.stride = stride;
|
|
DIFFUSE_POINTER.type = type;
|
|
DIFFUSE_POINTER.size = size;
|
|
}
|
|
|
|
void APIENTRY glNormalPointer(GLenum type, GLsizei stride, const GLvoid * pointer) {
|
|
TRACE();
|
|
|
|
NORMAL_POINTER.ptr = pointer;
|
|
NORMAL_POINTER.stride = stride;
|
|
NORMAL_POINTER.type = type;
|
|
NORMAL_POINTER.size = 3;
|
|
}
|