Add files

Kinc/Backends/Graphics5/Metal/Sources/kinc/backend/graphics5/vertexbuffer.m.h

@@ -0,0 +1,111 @@
+#include <kinc/graphics5/shader.h>
+#include <kinc/graphics5/vertexbuffer.h>
+
+#include <kinc/graphics5/graphics.h>
+#include <kinc/graphics5/indexbuffer.h>
+#include <kinc/graphics5/vertexbuffer.h>
+
+#import <Metal/Metal.h>
+
+id getMetalDevice(void);
+id getMetalEncoder(void);
+
+kinc_g5_vertex_buffer_t *currentVertexBuffer = NULL;
+
+static void vertex_buffer_unset(kinc_g5_vertex_buffer_t *buffer) {
+	if (currentVertexBuffer == buffer)
+		currentVertexBuffer = NULL;
+}
+
+void kinc_g5_vertex_buffer_init(kinc_g5_vertex_buffer_t *buffer, int count, kinc_g5_vertex_structure_t *structure, bool gpuMemory, int instanceDataStepRate) {
+	memset(&buffer->impl, 0, sizeof(buffer->impl));
+	buffer->impl.myCount = count;
+	buffer->impl.gpuMemory = gpuMemory;
+	for (int i = 0; i < structure->size; ++i) {
+		kinc_g5_vertex_element_t element = structure->elements[i];
+		buffer->impl.myStride += kinc_g4_vertex_data_size(element.data);
+	}
+
+	id<MTLDevice> device = getMetalDevice();
+	MTLResourceOptions options = MTLResourceCPUCacheModeWriteCombined;
+#ifdef KINC_APPLE_SOC
+	options |= MTLResourceStorageModeShared;
+#else
+	if (gpuMemory) {
+		options |= MTLResourceStorageModeManaged;
+	}
+	else {
+		options |= MTLResourceStorageModeShared;
+	}
+#endif
+	id<MTLBuffer> buf = [device newBufferWithLength:count * buffer->impl.myStride options:options];
+	buffer->impl.mtlBuffer = (__bridge_retained void *)buf;
+
+	buffer->impl.lastStart = 0;
+	buffer->impl.lastCount = 0;
+}
+
+void kinc_g5_vertex_buffer_destroy(kinc_g5_vertex_buffer_t *buf) {
+	id<MTLBuffer> buffer = (__bridge_transfer id<MTLBuffer>)buf->impl.mtlBuffer;
+	buffer = nil;
+	buf->impl.mtlBuffer = NULL;
+	vertex_buffer_unset(buf);
+}
+
+float *kinc_g5_vertex_buffer_lock_all(kinc_g5_vertex_buffer_t *buf) {
+	buf->impl.lastStart = 0;
+	buf->impl.lastCount = kinc_g5_vertex_buffer_count(buf);
+	id<MTLBuffer> buffer = (__bridge id<MTLBuffer>)buf->impl.mtlBuffer;
+	float *floats = (float *)[buffer contents];
+	return floats;
+}
+
+float *kinc_g5_vertex_buffer_lock(kinc_g5_vertex_buffer_t *buf, int start, int count) {
+	buf->impl.lastStart = start;
+	buf->impl.lastCount = count;
+	id<MTLBuffer> buffer = (__bridge id<MTLBuffer>)buf->impl.mtlBuffer;
+	float *floats = (float *)[buffer contents];
+	return &floats[start * buf->impl.myStride / sizeof(float)];
+}
+
+void kinc_g5_vertex_buffer_unlock_all(kinc_g5_vertex_buffer_t *buf) {
+#ifndef KINC_APPLE_SOC
+	if (buf->impl.gpuMemory) {
+		id<MTLBuffer> buffer = (__bridge id<MTLBuffer>)buf->impl.mtlBuffer;
+		NSRange range;
+		range.location = buf->impl.lastStart * buf->impl.myStride;
+		range.length = buf->impl.lastCount * buf->impl.myStride;
+		[buffer didModifyRange:range];
+	}
+#endif
+}
+
+void kinc_g5_vertex_buffer_unlock(kinc_g5_vertex_buffer_t *buf, int count) {
+#ifndef KINC_APPLE_SOC
+	if (buf->impl.gpuMemory) {
+		id<MTLBuffer> buffer = (__bridge id<MTLBuffer>)buf->impl.mtlBuffer;
+		NSRange range;
+		range.location = buf->impl.lastStart * buf->impl.myStride;
+		range.length = count * buf->impl.myStride;
+		[buffer didModifyRange:range];
+	}
+#endif
+}
+
+int kinc_g5_internal_vertex_buffer_set(kinc_g5_vertex_buffer_t *buf, int offset_) {
+	currentVertexBuffer = buf;
+
+	id<MTLRenderCommandEncoder> encoder = getMetalEncoder();
+	id<MTLBuffer> buffer = (__bridge id<MTLBuffer>)buf->impl.mtlBuffer;
+	[encoder setVertexBuffer:buffer offset:offset_ * buf->impl.myStride atIndex:0];
+
+	return offset_;
+}
+
+int kinc_g5_vertex_buffer_count(kinc_g5_vertex_buffer_t *buffer) {
+	return buffer->impl.myCount;
+}
+
+int kinc_g5_vertex_buffer_stride(kinc_g5_vertex_buffer_t *buffer) {
+	return buffer->impl.myStride;
+}