GLdc/include/glkos.h
2019-03-13 15:43:50 +00:00

99 lines
3.2 KiB
C

#pragma once
#include "gl.h"
__BEGIN_DECLS
/*
* Dreamcast specific compressed + twiddled formats.
* We use constants from the range 0xEEE0 onwards
* to avoid trampling any real GL constants (this is in the middle of the
* any_vendor_future_use range defined in the GL enum.spec file.
*/
#define GL_UNSIGNED_SHORT_5_6_5_TWID_KOS 0xEEE0
#define GL_UNSIGNED_SHORT_1_5_5_5_REV_TWID_KOS 0xEEE2
#define GL_UNSIGNED_SHORT_4_4_4_4_REV_TWID_KOS 0xEEE3
#define GL_COMPRESSED_RGB_565_VQ_KOS 0xEEE4
#define GL_COMPRESSED_ARGB_1555_VQ_KOS 0xEEE6
#define GL_COMPRESSED_ARGB_4444_VQ_KOS 0xEEE7
#define GL_COMPRESSED_RGB_565_VQ_TWID_KOS 0xEEE8
#define GL_COMPRESSED_ARGB_1555_VQ_TWID_KOS 0xEEEA
#define GL_COMPRESSED_ARGB_4444_VQ_TWID_KOS 0xEEEB
#define GL_COMPRESSED_RGB_565_VQ_MIPMAP_KOS 0xEEEC
#define GL_COMPRESSED_ARGB_1555_VQ_MIPMAP_KOS 0xEEED
#define GL_COMPRESSED_ARGB_4444_VQ_MIPMAP_KOS 0xEEEE
#define GL_COMPRESSED_RGB_565_VQ_MIPMAP_TWID_KOS 0xEEEF
#define GL_COMPRESSED_ARGB_1555_VQ_MIPMAP_TWID_KOS 0xEEF0
#define GL_COMPRESSED_ARGB_4444_VQ_MIPMAP_TWID_KOS 0xEEF1
#define GL_NEARZ_CLIPPING_KOS 0xEEFA
#define GL_UNSIGNED_BYTE_TWID_KOS 0xEEFB
/* Initialize the GL pipeline. GL will initialize the PVR. */
GLAPI void APIENTRY glKosInit();
typedef struct {
/* If GL_TRUE, enables pvr autosorting, this *will* break glDepthFunc/glDepthTest */
GLboolean autosort_enabled;
/* The internal format for paletted textures, must be GL_RGBA4 (default) or GL_RGBA8 */
GLenum internal_palette_format;
/* Initial capacity of each of the OP, TR and PT lists in vertices */
GLuint initial_op_capacity;
GLuint initial_tr_capacity;
GLuint initial_pt_capacity;
GLuint initial_immediate_capacity;
} GLdcConfig;
GLAPI void APIENTRY glKosInitConfig(GLdcConfig* config);
/* Usage:
*
* GLdcConfig config;
* glKosInitConfig(&config);
*
* config.autosort_enabled = GL_TRUE;
*
* glKosInitEx(&config);
*/
GLAPI void APIENTRY glKosInitEx(GLdcConfig* config);
GLAPI void APIENTRY glKosSwapBuffers();
/*
* CUSTOM EXTENSION multiple_shared_palette_KOS
*
* This extension allows using up to 4 different shared palettes
* with ColorTableEXT. The following constants are provided
* to use as targets for ColorTableExt:
*
* - SHARED_TEXTURE_PALETTE_0_KOS
* - SHARED_TEXTURE_PALETTE_1_KOS
* - SHARED_TEXTURE_PALETTE_2_KOS
* - SHARED_TEXTURE_PALETTE_3_KOS
*
* In this use case SHARED_TEXTURE_PALETTE_0_KOS is interchangable with SHARED_TEXTURE_PALETTE_EXT
* (both refer to the first shared palette).
*
* To select which palette a texture uses, a new pname is accepted by TexParameteri: SHARED_TEXTURE_BANK_KOS
* by default textures use shared palette 0.
*/
#define GL_SHARED_TEXTURE_PALETTE_0_KOS 0xEEFC
#define GL_SHARED_TEXTURE_PALETTE_1_KOS 0xEEFD
#define GL_SHARED_TEXTURE_PALETTE_2_KOS 0xEEFE
#define GL_SHARED_TEXTURE_PALETTE_3_KOS 0xEEFF
/* Pass to glTexParameteri to set the shared bank */
#define GL_SHARED_TEXTURE_BANK_KOS 0xEF00
__END_DECLS