57 lines
2.0 KiB
C++
57 lines
2.0 KiB
C++
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#include <kinc/graphics4/graphics.h>
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#include <kinc/graphics4/indexbuffer.h>
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#include <kinc/backend/SystemMicrosoft.h>
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#include "Direct3D9.h"
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struct kinc_g4_index_buffer *kinc_internal_current_index_buffer = NULL;
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void kinc_g4_index_buffer_init(kinc_g4_index_buffer_t *buffer, int count, kinc_g4_index_buffer_format_t format, kinc_g4_usage_t usage) {
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buffer->impl.count = count;
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buffer->impl.format = format;
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DWORD usageFlags = D3DUSAGE_WRITEONLY;
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if (usage == KINC_G4_USAGE_DYNAMIC) {
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usageFlags = D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY;
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}
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kinc_microsoft_affirm(device->CreateIndexBuffer(
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sizeof(int) * count, usageFlags, format == KINC_G4_INDEX_BUFFER_FORMAT_32BIT ? D3DFMT_INDEX32 : D3DFMT_INDEX16, D3DPOOL_DEFAULT, &buffer->impl.ib, 0));
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}
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void kinc_g4_index_buffer_destroy(kinc_g4_index_buffer_t *buffer) {
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buffer->impl.ib->Release();
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}
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static int kinc_g4_internal_index_buffer_stride(kinc_g4_index_buffer_t *buffer) {
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return buffer->impl.format == KINC_G4_INDEX_BUFFER_FORMAT_32BIT ? 4 : 2;
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}
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void *kinc_g4_index_buffer_lock_all(kinc_g4_index_buffer_t *buffer) {
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return kinc_g4_index_buffer_lock(buffer, 0, kinc_g4_index_buffer_count(buffer));
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}
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void *kinc_g4_index_buffer_lock(kinc_g4_index_buffer_t *buffer, int start, int count) {
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uint8_t *data;
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kinc_microsoft_affirm(buffer->impl.ib->Lock(0, sizeof(int) * kinc_g4_index_buffer_count(buffer), (void **)&data, D3DLOCK_DISCARD));
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return &data[start * kinc_g4_internal_index_buffer_stride(buffer)];
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}
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void kinc_g4_index_buffer_unlock_all(kinc_g4_index_buffer_t *buffer) {
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kinc_microsoft_affirm(buffer->impl.ib->Unlock());
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}
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void kinc_g4_index_buffer_unlock(kinc_g4_index_buffer_t *buffer, int count) {
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kinc_g4_index_buffer_unlock_all(buffer);
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}
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void kinc_internal_g4_index_buffer_set(kinc_g4_index_buffer_t *buffer) {
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kinc_internal_current_index_buffer = buffer;
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kinc_microsoft_affirm(device->SetIndices(buffer->impl.ib));
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}
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int kinc_g4_index_buffer_count(kinc_g4_index_buffer_t *buffer) {
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return buffer->impl.count;
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}
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