253 lines
9.8 KiB
C
253 lines
9.8 KiB
C
#pragma once
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#include "gl.h"
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__BEGIN_DECLS
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extern const char* GLDC_VERSION;
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/*
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* Dreamcast specific compressed + twiddled formats.
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* We use constants from the range 0xEEE0 onwards
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* to avoid trampling any real GL constants (this is in the middle of the
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* any_vendor_future_use range defined in the GL enum.spec file.
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*/
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#define GL_UNSIGNED_SHORT_5_6_5_TWID_KOS 0xEEE0
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#define GL_UNSIGNED_SHORT_1_5_5_5_REV_TWID_KOS 0xEEE2
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#define GL_UNSIGNED_SHORT_4_4_4_4_REV_TWID_KOS 0xEEE3
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#define GL_COMPRESSED_RGB_565_VQ_KOS 0xEEE4
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#define GL_COMPRESSED_ARGB_1555_VQ_KOS 0xEEE6
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#define GL_COMPRESSED_ARGB_4444_VQ_KOS 0xEEE7
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#define GL_COMPRESSED_RGB_565_VQ_TWID_KOS 0xEEE8
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#define GL_COMPRESSED_ARGB_1555_VQ_TWID_KOS 0xEEEA
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#define GL_COMPRESSED_ARGB_4444_VQ_TWID_KOS 0xEEEB
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#define GL_COMPRESSED_RGB_565_VQ_MIPMAP_KOS 0xEEEC
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#define GL_COMPRESSED_ARGB_1555_VQ_MIPMAP_KOS 0xEEED
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#define GL_COMPRESSED_ARGB_4444_VQ_MIPMAP_KOS 0xEEEE
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#define GL_COMPRESSED_RGB_565_VQ_MIPMAP_TWID_KOS 0xEEEF
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#define GL_COMPRESSED_ARGB_1555_VQ_MIPMAP_TWID_KOS 0xEEF0
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#define GL_COMPRESSED_ARGB_4444_VQ_MIPMAP_TWID_KOS 0xEEF1
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#define GL_NEARZ_CLIPPING_KOS 0xEEFA
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#define GL_UNSIGNED_BYTE_TWID_KOS 0xEEFB
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/* Initialize the GL pipeline. GL will initialize the PVR. */
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GLAPI void APIENTRY glKosInit();
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typedef struct {
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/* If GL_TRUE, enables pvr autosorting, this *will* break glDepthFunc/glDepthTest */
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GLboolean autosort_enabled;
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/* If GL_TRUE, enables the PVR FSAA */
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GLboolean fsaa_enabled;
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/* The internal format for paletted textures, must be GL_RGBA4 (default) or GL_RGBA8 */
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GLenum internal_palette_format;
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/* Initial capacity of each of the OP, TR and PT lists in vertices */
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GLuint initial_op_capacity;
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GLuint initial_tr_capacity;
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GLuint initial_pt_capacity;
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GLuint initial_immediate_capacity;
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} GLdcConfig;
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typedef struct {
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GLuint padding0;
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GLfloat x;
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GLfloat y;
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GLfloat z;
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GLfloat u;
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GLfloat v;
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GLubyte bgra[4];
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GLuint padding1;
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} GLVertexKOS;
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GLAPI void APIENTRY glVertexPackColor3fKOS(GLVertexKOS* vertex, float r, float g, float b);
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GLAPI void APIENTRY glVertexPackColor4fKOS(GLVertexKOS* vertex, float r, float g, float b, float a);
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GLAPI void APIENTRY glKosInitConfig(GLdcConfig* config);
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/* Usage:
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*
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* GLdcConfig config;
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* glKosInitConfig(&config);
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*
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* config.autosort_enabled = GL_TRUE;
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*
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* glKosInitEx(&config);
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*/
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GLAPI void APIENTRY glKosInitEx(GLdcConfig* config);
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GLAPI void APIENTRY glKosSwapBuffers();
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/*
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* CUSTOM EXTENSION multiple_shared_palette_KOS
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*
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* This extension allows using up to 4 different shared palettes
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* with ColorTableEXT. The following constants are provided
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* to use as targets for ColorTableExt:
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*
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* - SHARED_TEXTURE_PALETTE_0_KOS
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* - SHARED_TEXTURE_PALETTE_1_KOS
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* - SHARED_TEXTURE_PALETTE_2_KOS
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* - SHARED_TEXTURE_PALETTE_3_KOS
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*
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* In this use case SHARED_TEXTURE_PALETTE_0_KOS is interchangable with SHARED_TEXTURE_PALETTE_EXT
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* (both refer to the first shared palette).
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*
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* To select which palette a texture uses, a new pname is accepted by TexParameteri: SHARED_TEXTURE_BANK_KOS
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* by default textures use shared palette 0.
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*/
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#define GL_SHARED_TEXTURE_PALETTE_0_KOS 0xEEFC
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#define GL_SHARED_TEXTURE_PALETTE_1_KOS 0xEEFD
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#define GL_SHARED_TEXTURE_PALETTE_2_KOS 0xEEFE
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#define GL_SHARED_TEXTURE_PALETTE_3_KOS 0xEEFF
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#define GL_SHARED_TEXTURE_PALETTE_4_KOS 0xEF00
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#define GL_SHARED_TEXTURE_PALETTE_5_KOS 0xEF01
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#define GL_SHARED_TEXTURE_PALETTE_6_KOS 0xEF02
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#define GL_SHARED_TEXTURE_PALETTE_7_KOS 0xEF03
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#define GL_SHARED_TEXTURE_PALETTE_8_KOS 0xEF04
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#define GL_SHARED_TEXTURE_PALETTE_9_KOS 0xEF05
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#define GL_SHARED_TEXTURE_PALETTE_10_KOS 0xEF06
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#define GL_SHARED_TEXTURE_PALETTE_11_KOS 0xEF07
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#define GL_SHARED_TEXTURE_PALETTE_12_KOS 0xEF08
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#define GL_SHARED_TEXTURE_PALETTE_13_KOS 0xEF09
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#define GL_SHARED_TEXTURE_PALETTE_14_KOS 0xEF0A
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#define GL_SHARED_TEXTURE_PALETTE_15_KOS 0xEF0B
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#define GL_SHARED_TEXTURE_PALETTE_16_KOS 0xEF0C
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#define GL_SHARED_TEXTURE_PALETTE_17_KOS 0xEF0D
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#define GL_SHARED_TEXTURE_PALETTE_18_KOS 0xEF0E
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#define GL_SHARED_TEXTURE_PALETTE_19_KOS 0xEF0F
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#define GL_SHARED_TEXTURE_PALETTE_20_KOS 0xEF10
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#define GL_SHARED_TEXTURE_PALETTE_21_KOS 0xEF11
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#define GL_SHARED_TEXTURE_PALETTE_22_KOS 0xEF12
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#define GL_SHARED_TEXTURE_PALETTE_23_KOS 0xEF13
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#define GL_SHARED_TEXTURE_PALETTE_24_KOS 0xEF14
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#define GL_SHARED_TEXTURE_PALETTE_25_KOS 0xEF15
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#define GL_SHARED_TEXTURE_PALETTE_26_KOS 0xEF16
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#define GL_SHARED_TEXTURE_PALETTE_27_KOS 0xEF17
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#define GL_SHARED_TEXTURE_PALETTE_28_KOS 0xEF18
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#define GL_SHARED_TEXTURE_PALETTE_29_KOS 0xEF19
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#define GL_SHARED_TEXTURE_PALETTE_30_KOS 0xEF1A
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#define GL_SHARED_TEXTURE_PALETTE_31_KOS 0xEF1B
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#define GL_SHARED_TEXTURE_PALETTE_32_KOS 0xEF1C
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#define GL_SHARED_TEXTURE_PALETTE_33_KOS 0xEF1D
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#define GL_SHARED_TEXTURE_PALETTE_34_KOS 0xEF1E
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#define GL_SHARED_TEXTURE_PALETTE_35_KOS 0xEF1F
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#define GL_SHARED_TEXTURE_PALETTE_36_KOS 0xEF20
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#define GL_SHARED_TEXTURE_PALETTE_37_KOS 0xEF21
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#define GL_SHARED_TEXTURE_PALETTE_38_KOS 0xEF22
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#define GL_SHARED_TEXTURE_PALETTE_39_KOS 0xEF23
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#define GL_SHARED_TEXTURE_PALETTE_40_KOS 0xEF24
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#define GL_SHARED_TEXTURE_PALETTE_41_KOS 0xEF25
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#define GL_SHARED_TEXTURE_PALETTE_42_KOS 0xEF26
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#define GL_SHARED_TEXTURE_PALETTE_43_KOS 0xEF27
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#define GL_SHARED_TEXTURE_PALETTE_44_KOS 0xEF28
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#define GL_SHARED_TEXTURE_PALETTE_45_KOS 0xEF29
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#define GL_SHARED_TEXTURE_PALETTE_46_KOS 0xEF2A
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#define GL_SHARED_TEXTURE_PALETTE_47_KOS 0xEF2B
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#define GL_SHARED_TEXTURE_PALETTE_48_KOS 0xEF2C
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#define GL_SHARED_TEXTURE_PALETTE_49_KOS 0xEF2D
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#define GL_SHARED_TEXTURE_PALETTE_50_KOS 0xEF2E
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#define GL_SHARED_TEXTURE_PALETTE_51_KOS 0xEF2F
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#define GL_SHARED_TEXTURE_PALETTE_52_KOS 0xEF30
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#define GL_SHARED_TEXTURE_PALETTE_53_KOS 0xEF31
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#define GL_SHARED_TEXTURE_PALETTE_54_KOS 0xEF32
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#define GL_SHARED_TEXTURE_PALETTE_55_KOS 0xEF33
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#define GL_SHARED_TEXTURE_PALETTE_56_KOS 0xEF34
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#define GL_SHARED_TEXTURE_PALETTE_57_KOS 0xEF35
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#define GL_SHARED_TEXTURE_PALETTE_58_KOS 0xEF36
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#define GL_SHARED_TEXTURE_PALETTE_59_KOS 0xEF37
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#define GL_SHARED_TEXTURE_PALETTE_60_KOS 0xEF38
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#define GL_SHARED_TEXTURE_PALETTE_61_KOS 0xEF39
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#define GL_SHARED_TEXTURE_PALETTE_62_KOS 0xEF3A
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#define GL_SHARED_TEXTURE_PALETTE_63_KOS 0xEF3B
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/* Pass to glTexParameteri to set the shared bank */
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#define GL_SHARED_TEXTURE_BANK_KOS 0xEF3C
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/* Memory allocation extension (GL_KOS_texture_memory_management) */
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GLAPI GLvoid APIENTRY glDefragmentTextureMemory_KOS(void);
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#define GL_FREE_TEXTURE_MEMORY_KOS 0xEF3D
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#define GL_USED_TEXTURE_MEMORY_KOS 0xEF3E
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#define GL_FREE_CONTIGUOUS_TEXTURE_MEMORY_KOS 0xEF3F
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//for palette internal format (glfcConfig)
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#define GL_RGB565_KOS 0xEF40
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/**
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* This is a custom extension to OpenGL that allows submitting data
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* directly in the expected format and alignment of the Dreamcast PowerVR
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* chip.
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*
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* Vertices sent to via this API should be 4-byte aligned (ideally 32) and
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* use the following layout:
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*
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* uint32_t padding; // (Space for the PVR command header)
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* float xyz[3]; // Pos
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* float uv[2]; // Tex coord
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* uint8_t bgra[4]; // Vertex color
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* uint8_t obgra[4]; // Offset color (currently unused)
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*
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* This layout is 32 bytes in size and is copied directly into the PVR command stream.
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*
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* However, GL also allows for other attributes: normals, and secondary texture coordinates.
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*
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* For that reason, you can use this API to submit vertices in an "extended" format which
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* is as follows:
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*
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* uint32_t header; // PVR command header
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* float xyz[3]; // Pos
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* float uv[2]; // Tex coord
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* uint8_t bgra[4]; // Vertex color
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* uint8_t obgra[4]; // Offset color (currently unused)
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* float nxyz[3]; // Normal
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* float st[2]; // Secondary texture coords
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* uint32_t padding[3]; // Internal use.
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*/
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/* Draw polygons by directly copying the vertices into the PVR command stream. Transformation
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will happen as usual. Enabled client state *is NOT* respected.
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ERRORS:
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- GL_INVALID_ENUM is generated if mode is not an accepted value (GL_TRIANGLES, GL_QUADS, GL_TRIANGLE_STRIP are accepted)
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- GL_INVALID_VALUE is generated if count is negative
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- GL_INVALID_VALUE is generated if data is NULL
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*/
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void glDrawPVRArrays32KOS(GLenum mode, GLint first, GLsizei count, void* data);
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/* Draw polygons by directly copying the vertices into the PVR command stream. Transformation
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will happen as usual. Enabled client state *is NOT* respected. This uses the extended vertex format which includes
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normals and secondary texture coordinates. These will only take effect if you've enabled secondary texture coordinates
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with glEnable (for ST) or enabled lighting (for normals). GL_NORMALIZE is not respected.
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ERRORS:
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- GL_INVALID_ENUM is generated if mode is not an accepted value (GL_TRIANGLES, GL_QUADS, GL_TRIANGLE_STRIP are accepted)
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- GL_INVALID_VALUE is generated if count is negative
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- GL_INVALID_VALUE is generated if data is NULL
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*/
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void glDrawPVRArrays64KOS(GLenum mode, GLint first, GLsizei count, void* data);
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__END_DECLS
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