33 lines
1.0 KiB
C
33 lines
1.0 KiB
C
#include "context.h"
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void C3D_DrawElements(GPU_Primitive_t primitive, int count, int type, const void* indices)
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{
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C3D_Context* ctx = C3Di_GetContext();
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u32 pa = osConvertVirtToPhys((u32)indices);
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u32 base = ctx->bufInfo.base_paddr;
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if (pa < base) return;
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C3Di_UpdateContext();
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// Set primitive type
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GPUCMD_AddMaskedWrite(GPUREG_PRIMITIVE_CONFIG, 2, primitive);
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GPUCMD_AddMaskedWrite(GPUREG_RESTART_PRIMITIVE, 2, 0x00000001);
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// Configure the index buffer
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GPUCMD_AddWrite(GPUREG_INDEXBUFFER_CONFIG, (pa - base) | (type << 31));
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// Number of vertices
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GPUCMD_AddWrite(GPUREG_NUMVERTICES, count);
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// First vertex
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GPUCMD_AddWrite(GPUREG_VERTEX_OFFSET, 0);
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// Unknown commands
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//GPUCMD_AddMaskedWrite(GPUREG_GEOSTAGE_CONFIG, 2, 0x00000100);
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GPUCMD_AddMaskedWrite(GPUREG_0253, 2, 0x00000100);
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GPUCMD_AddMaskedWrite(GPUREG_0245, 1, 0x00000000);
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GPUCMD_AddWrite(GPUREG_DRAWELEMENTS, 0x00000001);
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GPUCMD_AddMaskedWrite(GPUREG_0245, 1, 0x00000001);
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GPUCMD_AddWrite(GPUREG_0231, 0x00000001);
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C3Di_GetContext()->flags |= C3DiF_DrawUsed;
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}
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