GLdc/gl-pvr.h
2014-09-28 19:40:41 -07:00

55 lines
1.6 KiB
C
Executable File

/* KallistiGL for KallistiOS ##version##
libgl/gl-pvr.h
Copyright (C) 2013-2014 Josh Pearson
Vertex Buffer Routines for interfacing the Dreamcast's SH4 CPU and PowerVR GPU.
*/
#ifndef GL_PVR_H
#define GL_PVR_H
/* GL->PVR Commands */
typedef struct {
unsigned int cmd[8];
} pvr_cmd_t; /* Generic 32byte command for the pvr */
typedef struct {
unsigned int flags; /* Constant PVR_CMD_USERCLIP */
unsigned int d1, d2, d3; /* Ignored for this type */
unsigned int sx, /* Start x */
sy, /* Start y */
ex, /* End x */
ey; /* End y */
} pvr_cmd_tclip_t; /* Tile Clip command for the pvr */
#define GL_PVR_VERTEX_BUF_SIZE 2560 * 256 /* PVR Vertex buffer size */
#define GL_MAX_VERTS 1024*64 /* SH4 Vertex Count */
#define GL_MAX_TEXTURES 1024 /* Textures in Buffer */
#define GL_USE_MALLOC 1 /* Use Dynamic Vertex Array */
//#define GL_USE_FLOAT 0 /* Use PVR's floating-point color Vertex Type (64bit) *NoOp* */
//#define GL_USE_DMA 0 /* Use PVR DMA for vertex data transfer *NoOp* */
#define GL_LIST_OP 0
#define GL_LIST_TR 1
/* Misc SH4->PVR Commands */
#define TA_SQ_ADDR (unsigned int *)(void *) \
(0xe0000000 | (((unsigned long)0x10000000) & 0x03ffffe0))
#define QACRTA ((((unsigned int)0x10000000)>>26)<<2)&0x1c
#define PVR_TA_TXR_FILTER_SHIFT 14
#define GL_PVR_FILTER_POINT 0x00
#define GL_PVR_FILTER_BILINEAR 0x01
#define GL_PVR_FILTER_TRILINEAR_A 0x10
#define GL_PVR_FILTER_TRILINEAR_B 0x11
#define PVR_TA_SUPER_SAMPLE_SHIFT 12
#define GL_PVR_SAMPLE_POINT 0x0
#define GL_PVR_SAMPLE_SUPER 0x1
#endif