352 lines
9.4 KiB
C
352 lines
9.4 KiB
C
#ifndef PRIVATE_H
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#define PRIVATE_H
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#include <stdint.h>
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#include <dc/matrix.h>
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#include <dc/pvr.h>
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#include <dc/vec3f.h>
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#include <dc/fmath.h>
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#include <dc/matrix3d.h>
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#include "../include/gl.h"
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#include "../containers/aligned_vector.h"
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#include "../containers/named_array.h"
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#define FASTCPY(dst, src, bytes) \
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(bytes % 32 == 0) ? sq_cpy(dst, src, bytes) : memcpy(dst, src, bytes);
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#define _PACK4(v) ((v * 0xF) / 0xFF)
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#define PACK_ARGB4444(a,r,g,b) (_PACK4(a) << 12) | (_PACK4(r) << 8) | (_PACK4(g) << 4) | (_PACK4(b))
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#define PACK_ARGB8888(a,r,g,b) ( ((a & 0xFF) << 24) | ((r & 0xFF) << 16) | ((g & 0xFF) << 8) | (b & 0xFF) )
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#define PACK_ARGB1555(a,r,g,b) \
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(((GLushort)(a > 0) << 15) | (((GLushort) r >> 3) << 10) | (((GLushort)g >> 3) << 5) | ((GLushort)b >> 3))
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#define PACK_RGB565(r,g,b) \
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((((GLushort)r & 0xf8) << 8) | (((GLushort) g & 0xfc) << 3) | ((GLushort) b >> 3))
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#define TRACE_ENABLED 0
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#define TRACE() if(TRACE_ENABLED) {fprintf(stderr, "%s\n", __func__);}
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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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#define MAX_TEXTURE_SIZE 1024
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typedef float Matrix4x4[16];
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/* This gives us an easy way to switch
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* internal matrix order if necessary */
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#define TRANSPOSE 0
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#if TRANSPOSE
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#define M0 0
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#define M1 4
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#define M2 8
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#define M3 12
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#define M4 1
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#define M5 5
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#define M6 9
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#define M7 13
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#define M8 2
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#define M9 6
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#define M10 10
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#define M11 14
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#define M12 3
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#define M13 7
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#define M14 11
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#define M15 15
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#else
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#define M0 0
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#define M1 1
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#define M2 2
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#define M3 3
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#define M4 4
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#define M5 5
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#define M6 6
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#define M7 7
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#define M8 8
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#define M9 9
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#define M10 10
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#define M11 11
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#define M12 12
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#define M13 13
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#define M14 14
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#define M15 15
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#endif
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typedef struct {
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pvr_poly_hdr_t hdr;
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} PVRHeader;
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typedef struct {
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unsigned int flags; /* Constant PVR_CMD_USERCLIP */
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unsigned int d1, d2, d3; /* Ignored for this type */
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unsigned int sx, /* Start x */
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sy, /* Start y */
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ex, /* End x */
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ey; /* End y */
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} PVRTileClipCommand; /* Tile Clip command for the pvr */
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typedef struct {
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unsigned int list_type;
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AlignedVector vector;
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} PolyList;
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typedef struct {
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/* Palette data is always stored in RAM as RGBA8888 and packed as ARGB8888
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* when uploaded to the PVR */
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GLubyte* data;
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GLushort width; /* The user specified width */
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GLushort size; /* The size of the bank (16 or 256) */
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GLenum format;
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GLshort bank;
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} TexturePalette;
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typedef struct {
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GLushort width;
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GLushort height;
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GLuint color; /* This is the PVR texture format */
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GLubyte env;
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GLushort mipmap; /* Bitmask of supplied mipmap levels */
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GLubyte mipmapCount; /* The number of mipmap levels */
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GLubyte uv_clamp;
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GLuint index;
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GLvoid *data;
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GLuint dataStride;
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GLuint baseDataSize; /* The data size of mipmap level 0 */
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GLenum minFilter;
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GLenum magFilter;
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GLboolean isCompressed;
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GLboolean isPaletted;
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/* Mipmap textures have a different
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* offset for the base level when supplying the data, this
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* keeps track of that. baseDataOffset == 0
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* means that the texture has no mipmaps
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*/
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GLuint baseDataOffset;
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TexturePalette* palette;
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/* When using the shared palette, this is the bank (0-3) */
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GLushort shared_bank;
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} TextureObject;
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typedef struct {
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GLfloat emissive[4];
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GLfloat ambient[4];
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GLfloat diffuse[4];
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GLfloat specular[4];
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GLfloat exponent;
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} Material;
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typedef struct {
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GLfloat position[4];
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GLfloat spot_direction[3];
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GLfloat spot_cutoff;
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GLfloat constant_attenuation;
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GLfloat linear_attenuation;
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GLfloat quadratic_attenuation;
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GLfloat spot_exponent;
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GLfloat diffuse[4];
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GLfloat specular[4];
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GLfloat ambient[4];
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GLboolean is_directional;
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} LightSource;
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typedef struct {
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/* Same 32 byte layout as pvr_vertex_t */
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uint32_t flags;
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float xyz[3];
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float uv[2];
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uint8_t bgra[4];
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/* In the pvr_vertex_t structure, this next 4 bytes is oargb
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* but we're not using that for now, so having W here makes the code
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* simpler */
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float w;
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} Vertex;
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/* FIXME: SH4 has a swap.w instruction, we should leverage it here! */
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#define _SWAP32(x, y) \
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do { \
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uint32_t t = *((uint32_t*) &x); \
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*((uint32_t*) &x) = *((uint32_t*) &y); \
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*((uint32_t*) &y) = t; \
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} while(0)
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/*
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*((uint32_t*) &x) = *((uint32_t*) &x) ^ *((uint32_t*) &y); \
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*((uint32_t*) &y) = *((uint32_t*) &x) ^ *((uint32_t*) &y); \
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*((uint32_t*) &x) = *((uint32_t*) &x) ^ *((uint32_t*) &y); */
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#define swapVertex(a, b) \
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do { \
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Vertex c = *a; \
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*a = *b; \
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*b = c; \
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} while(0)
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/* ClipVertex doesn't have room for these, so we need to parse them
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* out separately. Potentially 'w' will be housed here if we support oargb */
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typedef struct {
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float nxyz[3];
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float st[2];
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} VertexExtra;
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/* Generating PVR vertices from the user-submitted data gets complicated, particularly
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* when a realloc could invalidate pointers. This structure holds all the information
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* we need on the target vertex array to allow passing around to the various stages (e.g. generate/clip etc.)
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*/
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typedef struct {
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PolyList* output;
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uint32_t header_offset; // The offset of the header in the output list
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uint32_t start_offset; // The offset into the output list
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uint32_t count; // The number of vertices in this output
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/* Pointer to count * VertexExtra; */
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AlignedVector* extras;
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} SubmissionTarget;
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PVRHeader* _glSubmissionTargetHeader(SubmissionTarget* target);
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Vertex* _glSubmissionTargetStart(SubmissionTarget* target);
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Vertex* _glSubmissionTargetEnd(SubmissionTarget* target);
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typedef enum {
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CLIP_RESULT_ALL_IN_FRONT,
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CLIP_RESULT_ALL_BEHIND,
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CLIP_RESULT_ALL_ON_PLANE,
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CLIP_RESULT_FRONT_TO_BACK,
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CLIP_RESULT_BACK_TO_FRONT
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} ClipResult;
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#define A8IDX 3
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#define R8IDX 2
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#define G8IDX 1
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#define B8IDX 0
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struct SubmissionTarget;
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void _glClipLineToNearZ(const Vertex* v1, const Vertex* v2, Vertex* vout, float* t);
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void _glClipTriangleStrip(SubmissionTarget* target, uint8_t fladeShade);
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PolyList *_glActivePolyList();
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PolyList *_glTransparentPolyList();
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void _glInitAttributePointers();
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void _glInitContext();
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void _glInitLights();
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void _glInitImmediateMode(GLuint initial_size);
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void _glInitMatrices();
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void _glInitFramebuffers();
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void _glMatrixLoadNormal();
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void _glMatrixLoadModelView();
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void _glMatrixLoadTexture();
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void _glApplyRenderMatrix();
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extern GLfloat DEPTH_RANGE_MULTIPLIER_L;
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extern GLfloat DEPTH_RANGE_MULTIPLIER_H;
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Matrix4x4* _glGetProjectionMatrix();
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Matrix4x4* _glGetModelViewMatrix();
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void _glWipeTextureOnFramebuffers(GLuint texture);
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GLubyte _glCheckImmediateModeInactive(const char* func);
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pvr_poly_cxt_t* _glGetPVRContext();
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GLubyte _glInitTextures();
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void _glUpdatePVRTextureContext(pvr_poly_cxt_t* context, GLshort textureUnit);
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void _glAllocateSpaceForMipmaps(TextureObject* active);
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extern GLfloat NEAR_PLANE_DISTANCE;
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GLfloat _glGetNearPlane();
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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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GLboolean _glCheckValidEnum(GLint param, GLint* values, const char* func);
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GLuint* _glGetEnabledAttributes();
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AttribPointer* _glGetVertexAttribPointer();
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AttribPointer* _glGetDiffuseAttribPointer();
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AttribPointer* _glGetNormalAttribPointer();
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AttribPointer* _glGetUVAttribPointer();
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AttribPointer* _glGetSTAttribPointer();
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GLenum _glGetShadeModel();
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TextureObject* _glGetTexture0();
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TextureObject* _glGetTexture1();
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TextureObject* _glGetBoundTexture();
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GLubyte _glGetActiveTexture();
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GLuint _glGetActiveClientTexture();
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TexturePalette* _glGetSharedPalette(GLshort bank);
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void _glSetInternalPaletteFormat(GLenum val);
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GLboolean _glIsSharedTexturePaletteEnabled();
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void _glApplyColorTable(TexturePalette *palette);
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GLboolean _glIsBlendingEnabled();
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GLboolean _glIsAlphaTestEnabled();
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GLboolean _glIsMipmapComplete(const TextureObject* obj);
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GLubyte* _glGetMipmapLocation(TextureObject* obj, GLuint level);
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GLuint _glGetMipmapLevelCount(TextureObject* obj);
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GLboolean _glIsLightingEnabled();
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GLboolean _glIsLightEnabled(GLubyte light);
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GLboolean _glIsColorMaterialEnabled();
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GLboolean _glIsNormalizeEnabled();
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GLboolean _glRecalcFastPath();
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typedef struct {
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float xyz[3];
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float n[3];
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} EyeSpaceData;
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extern void _glPerformLighting(Vertex* vertices, const EyeSpaceData* es, const int32_t count);
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unsigned char _glIsClippingEnabled();
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void _glEnableClipping(unsigned char v);
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void _glKosThrowError(GLenum error, const char *function);
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void _glKosPrintError();
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GLubyte _glKosHasError();
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#define PVR_VERTEX_BUF_SIZE 2560 * 256
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#define MAX_TEXTURE_UNITS 2
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#define MAX_LIGHTS 8
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#define CLAMP( X, MIN, MAX ) ( (X)<(MIN) ? (MIN) : ((X)>(MAX) ? (MAX) : (X)) )
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#define mat_trans_fv12() { \
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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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"fldi1 fr14\n" \
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"fdiv fr15, fr14\n" \
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"fmul fr14, fr12\n" \
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"fmul fr14, fr13\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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}
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#endif // PRIVATE_H
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