128 lines
4.2 KiB
C++
128 lines
4.2 KiB
C++
/* THIS FILE IS INCLUDED BY draw.c TO AVOID CODE DUPLICATION. IT'S AN UGLY HACK */
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#define FUNC_NAME(mode) static void generateArraysFastPath##_##mode(SubmissionTarget* target, const GLsizei first, const GLuint count)
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#define MAKE_FUNC(mode) FUNC_NAME(mode)
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MAKE_FUNC(POLYMODE)
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{
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static const float w = 1.0f;
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if(!(ENABLED_VERTEX_ATTRIBUTES & VERTEX_ENABLED_FLAG)) {
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/* If we don't have vertices, do nothing */
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return;
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}
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/* This is the best value we have. PROCESS_VERTEX_FLAGS needs to operate on quads and tris and so
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this need to be divisible by 4 and 3. Even though we should be able to go much higher than this
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and still be cache-local, trial and error says otherwise... */
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#define BATCH_SIZE 60
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GLuint min = 0;
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GLuint stride;
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const GLubyte* ptr;
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Vertex* it;
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VertexExtra* ve;
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for(min = 0; min < count; min += BATCH_SIZE) {
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const Vertex* start = ((Vertex*) _glSubmissionTargetStart(target)) + min;
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const int_fast32_t loop = ((min + BATCH_SIZE) > count) ? count - min : BATCH_SIZE;
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const int offset = (first + min);
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stride = ATTRIB_POINTERS.vertex.stride;
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ptr = ATTRIB_POINTERS.vertex.ptr + (offset * stride);
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it = (Vertex*) start;
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PREFETCH(ptr);
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for(int_fast32_t i = 0; i < loop; ++i, ++it) {
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PREFETCH(ptr + stride);
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TransformVertex((const float*) ptr, &w, it->xyz, &it->w);
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PROCESS_VERTEX_FLAGS(it, min + i);
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ptr += stride;
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}
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stride = ATTRIB_POINTERS.uv.stride;
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ptr = (ENABLED_VERTEX_ATTRIBUTES & UV_ENABLED_FLAG) ? ATTRIB_POINTERS.uv.ptr + ((first + min) * stride) : NULL;
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it = (Vertex*) start;
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if(ptr) {
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PREFETCH(ptr);
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for(int_fast32_t i = 0; i < loop; ++i, ++it) {
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PREFETCH(ptr + stride);
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it->uv[0] = ((float*) ptr)[0];
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it->uv[1] = ((float*) ptr)[1];
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ptr += stride;
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}
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} else {
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for(int_fast32_t i = 0; i < loop; ++i, ++it) {
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it->uv[0] = 0;
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it->uv[1] = 0;
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}
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}
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stride = ATTRIB_POINTERS.colour.stride;
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ptr = (ENABLED_VERTEX_ATTRIBUTES & DIFFUSE_ENABLED_FLAG) ? ATTRIB_POINTERS.colour.ptr + (offset * stride) : NULL;
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it = (Vertex*) start;
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if(ptr) {
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PREFETCH(ptr);
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for(int_fast32_t i = 0; i < loop; ++i, ++it) {
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PREFETCH(ptr + stride);
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it->bgra[0] = ptr[0];
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it->bgra[1] = ptr[1];
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it->bgra[2] = ptr[2];
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it->bgra[3] = ptr[3];
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ptr += stride;
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}
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} else {
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for(int_fast32_t i = 0; i < loop; ++i, ++it) {
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*((uint32_t*) it->bgra) = ~0;
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}
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}
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start = aligned_vector_at(target->extras, min);
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stride = ATTRIB_POINTERS.st.stride;
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ptr = (ENABLED_VERTEX_ATTRIBUTES & ST_ENABLED_FLAG) ? ATTRIB_POINTERS.st.ptr + (offset * stride) : NULL;
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ve = (VertexExtra*) start;
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if(ptr) {
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PREFETCH(ptr);
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for(int_fast32_t i = 0; i < loop; ++i, ++ve) {
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PREFETCH(ptr + stride);
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ve->st[0] = ((float*) ptr)[0];
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ve->st[1] = ((float*) ptr)[1];
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ptr += stride;
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}
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} else {
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for(int_fast32_t i = 0; i < loop; ++i, ++ve) {
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ve->st[0] = 0;
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ve->st[1] = 0;
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}
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}
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stride = ATTRIB_POINTERS.normal.stride;
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ptr = (ENABLED_VERTEX_ATTRIBUTES & NORMAL_ENABLED_FLAG) ? ATTRIB_POINTERS.normal.ptr + (offset * stride) : NULL;
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ve = (VertexExtra*) start;
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if(ptr) {
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PREFETCH(ptr);
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for(int_fast32_t i = 0; i < loop; ++i, ++ve) {
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PREFETCH(ptr + stride);
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ve->nxyz[0] = ((float*) ptr)[0];
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ve->nxyz[1] = ((float*) ptr)[1];
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ve->nxyz[2] = ((float*) ptr)[2];
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ptr += stride;
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}
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} else {
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for(int_fast32_t i = 0; i < loop; ++i, ++ve) {
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ve->nxyz[0] = 0;
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ve->nxyz[1] = 0;
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ve->nxyz[2] = 0;
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}
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}
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}
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}
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