Sandro Sobczyński
297 lines
9.3 KiB
C++
297 lines
9.3 KiB
C++
/*
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# ______ ____ ___
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# | \/ ____| |___|
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# | | | \ | |
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#-----------------------------------------------------------------------
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# Copyright 2020, tyra - https://github.com/h4570/tyra
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# Licenced under Apache License 2.0
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# Sandro Sobczyński <sandro.sobczynski@gmail.com>
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*/
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#include "../include/modules/renderer.hpp"
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#include <dma.h>
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#include <graph.h>
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#include <packet.h>
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#include <draw.h>
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#include <gs_psm.h>
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#include "../include/utils/debug.hpp"
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#include "../include/utils/math.hpp"
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// ----
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// Constructors/Destructors
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// ----
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/** Initialize DMA<->GIF channel
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* Allocate buffers
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* Initialize screen
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* Initialize drawing environment
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* Load/setup textures
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* @param screenW Half of screen width
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* @param screenH Half of screen height
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*/
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Renderer::Renderer(u32 t_packetSize, ScreenSettings *t_screen)
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{
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PRINT_LOG("Initializing renderer");
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dma_channel_initialize(DMA_CHANNEL_GIF, NULL, 0); // Initialize DMA to enable data transfer
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dma_channel_fast_waits(DMA_CHANNEL_GIF);
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context = 0;
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isTextureVRAMAllocated = false;
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isFrameEmpty = false;
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lastTextureId = 0;
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flipPacket = packet_init(3, PACKET_UCAB); // Uncached accelerated
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allocateBuffers(t_screen->width, t_screen->height);
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initDrawingEnv(t_screen->width, t_screen->height);
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setPrim();
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gifSender = new GifSender(t_packetSize, t_screen);
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vifSender = new VifSender();
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perspective.setPerspective(*t_screen);
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renderData.perspective = &perspective;
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PRINT_LOG("Renderer initialized!");
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}
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Renderer::~Renderer() {}
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// ----
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// Methods
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// ----
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/** Configure and allocate vRAM for texture buffer */
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void Renderer::allocateTextureBuffer(u16 t_width, u16 t_height)
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{
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textureBuffer.width = t_width;
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textureBuffer.psm = GS_PSM_24;
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textureBuffer.address = graph_vram_allocate(t_width, t_height, GS_PSM_24, GRAPH_ALIGN_BLOCK);
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if (textureBuffer.address <= 1)
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PRINT_ERR("Texture buffer allocation error. No memory!");
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textureBuffer.info.width = draw_log2(t_width);
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textureBuffer.info.height = draw_log2(t_height);
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textureBuffer.info.components = TEXTURE_COMPONENTS_RGB;
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textureBuffer.info.function = TEXTURE_FUNCTION_MODULATE;
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isTextureVRAMAllocated = true;
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}
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/** Configure and allocate vRAM for texture buffer */
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void Renderer::deallocateTextureBuffer()
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{
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if (isTextureVRAMAllocated)
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{
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graph_vram_free(textureBuffer.address);
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isTextureVRAMAllocated = false;
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}
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}
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void Renderer::changeTexture(Mesh *t_mesh, u32 t_materialId)
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{
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MeshTexture *tex = textureRepo.getByMesh(t_mesh->id, t_materialId);
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if (tex != NULL)
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{
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if (tex->getId() != lastTextureId)
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{
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lastTextureId = tex->getId();
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deallocateTextureBuffer();
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allocateTextureBuffer(tex->getWidth(), tex->getHeight());
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GifSender::sendTexture(*tex, &textureBuffer);
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}
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}
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else
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PRINT_ERR("Texture was not found in texture repository!");
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}
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/** Initializes drawing environment (1st app packet) */
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void Renderer::initDrawingEnv(float t_screenW, float t_screenH)
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{
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PRINT_LOG("Initializing drawing environment");
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packet_t *packet = packet_init(20, PACKET_NORMAL);
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u16 halfW = (u16)t_screenW / 2;
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u16 halfH = (u16)t_screenH / 2;
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qword_t *q = packet->data; // Generic qword pointer.
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q = draw_setup_environment(q, 0, frameBuffers, &(zBuffer));
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q = draw_primitive_xyoffset(q, 0, (2048 - halfW), (2048 - halfH));
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q = draw_finish(q);
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// Now send the packet, no need to wait since it's the first.
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dma_channel_send_normal(DMA_CHANNEL_GIF, packet->data, q - packet->data, 0, 0);
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dma_wait_fast();
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packet_free(packet);
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PRINT_LOG("Drawing environment initialized!");
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}
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/** Sets drawing prim for all 3D objects */
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void Renderer::setPrim()
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{
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prim.type = PRIM_TRIANGLE;
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prim.shading = PRIM_SHADE_FLAT;
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prim.mapping = DRAW_ENABLE;
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prim.fogging = DRAW_DISABLE;
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prim.blending = DRAW_ENABLE;
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prim.antialiasing = DRAW_DISABLE;
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prim.mapping_type = PRIM_MAP_ST;
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prim.colorfix = PRIM_UNFIXED;
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renderData.prim = &prim;
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PRINT_LOG("Prim set!");
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}
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/** Defines and allocates framebuffers and zbuffer */
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void Renderer::allocateBuffers(float t_screenW, float t_screenH)
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{
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frameBuffers[0].width = (u16)t_screenW;
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frameBuffers[0].height = (u16)t_screenH;
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frameBuffers[0].mask = 0;
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frameBuffers[0].psm = GS_PSM_32;
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frameBuffers[0].address = graph_vram_allocate((u16)t_screenW, (u16)t_screenH, frameBuffers[0].psm, GRAPH_ALIGN_PAGE);
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frameBuffers[1].width = (u16)t_screenW;
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frameBuffers[1].height = (u16)t_screenH;
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frameBuffers[1].mask = 0;
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frameBuffers[1].psm = GS_PSM_32;
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frameBuffers[1].address = graph_vram_allocate((u16)t_screenW, (u16)t_screenH, frameBuffers[1].psm, GRAPH_ALIGN_PAGE);
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zBuffer.enable = DRAW_ENABLE;
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zBuffer.mask = 0;
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zBuffer.method = ZTEST_METHOD_GREATER_EQUAL;
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zBuffer.zsm = GS_ZBUF_32;
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zBuffer.address = graph_vram_allocate((u16)t_screenW, (u16)t_screenH, zBuffer.zsm, GRAPH_ALIGN_PAGE);
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PRINT_LOG("Framebuffers, zBuffer set and allocated!");
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// Initialize the screen and tie the first framebuffer to the read circuits.
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graph_initialize(frameBuffers[1].address, frameBuffers[1].width, frameBuffers[1].height, frameBuffers[1].psm, 0, 0);
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}
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/// --- Draw: PATH3
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/** PATH3 Many + lighting */
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void Renderer::drawByPath3(Mesh **t_meshes, u16 t_amount, LightBulb *t_bulbs, u16 t_bulbsCount)
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{
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beginFrameIfNeeded();
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gifSender->initPacket(context);
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// TODO
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changeTexture(t_meshes[0], 0);
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gifSender->addObjects(&renderData, t_meshes, t_amount, t_bulbs, t_bulbsCount, &textureBuffer);
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gifSender->sendPacket();
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draw_wait_finish();
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}
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/** PATH3 Single + lighting */
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void Renderer::drawByPath3(Mesh *t_mesh, LightBulb *t_bulbs, u16 t_bulbsCount)
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{
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beginFrameIfNeeded();
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changeTexture(t_mesh, 0);
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gifSender->initPacket(context);
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// TODO
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gifSender->addObjects(&renderData, &t_mesh, 1, t_bulbs, t_bulbsCount, &textureBuffer);
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gifSender->sendPacket();
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draw_wait_finish();
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}
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/** PATH3 Many */
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void Renderer::drawByPath3(Mesh **t_meshes, u16 t_amount) { drawByPath3(t_meshes, t_amount, NULL, 0); }
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/** PATH3 Single */
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void Renderer::drawByPath3(Mesh *t_mesh) { drawByPath3(t_mesh, NULL, 0); }
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/// --- Draw: PATH1
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/** PATH1 Many + lighting */
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void Renderer::draw(Mesh **t_meshes, u16 t_amount, LightBulb *t_bulbs, u16 t_bulbsCount)
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{
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// TODO
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beginFrameIfNeeded();
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for (u16 i = 0; i < t_amount; i++)
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draw(t_meshes[i], t_bulbs, t_bulbsCount);
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}
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u8 once = true;
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/** PATH1 Single + lighting */
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void Renderer::draw(Mesh *t_mesh, LightBulb *t_bulbs, u16 t_bulbsCount)
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{
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beginFrameIfNeeded();
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// TODO VU1 send single list here
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if (!t_mesh->isObjLoaded && !t_mesh->isMd2Loaded)
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return;
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u32 vertCount = t_mesh->getVertexCount();
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VECTOR *vertices = new VECTOR[vertCount];
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VECTOR *normals = new VECTOR[vertCount];
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VECTOR *coordinates = new VECTOR[vertCount];
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if (t_mesh->isObjLoaded)
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{
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if (t_mesh->animState.startFrame != t_mesh->animState.endFrame)
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t_mesh->animate();
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for (u32 i = 0; i < t_mesh->getMaterialsCount(); i++)
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{
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changeTexture(t_mesh, t_mesh->getMaterial(i).getId());
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if (once)
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printf("Changing material to:%d\n", t_mesh->getMaterial(i).getId());
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vertCount = t_mesh->getDrawData(i, vertices, normals, coordinates, *renderData.cameraPosition);
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vifSender->drawMesh(&renderData, perspective, vertCount, vertices, normals, coordinates, t_mesh, t_bulbs, t_bulbsCount, &textureBuffer);
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}
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once = false;
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}
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else if (t_mesh->isMd2Loaded)
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{
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changeTexture(t_mesh, 0);
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vertCount = t_mesh->getDrawData(0, vertices, normals, coordinates, *renderData.cameraPosition);
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vifSender->drawMesh(&renderData, perspective, vertCount, vertices, normals, coordinates, t_mesh, t_bulbs, t_bulbsCount, &textureBuffer);
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}
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delete[] vertices;
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delete[] normals;
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delete[] coordinates;
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}
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/** PATH1 Many */
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void Renderer::draw(Mesh **t_objects3D, u16 t_amount) { draw(t_objects3D, t_amount, NULL, 0); }
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/** PATH1 Single */
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void Renderer::draw(Mesh *t_mesh) { draw(t_mesh, NULL, 0); }
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/// ---
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void Renderer::setCameraDefinitions(Matrix *t_worldView, Vector3 *t_cameraPos, Plane *t_planes)
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{
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renderData.worldView = t_worldView;
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renderData.cameraPosition = t_cameraPos;
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renderData.frustumPlanes = t_planes;
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}
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void Renderer::beginFrameIfNeeded()
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{
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if (isFrameEmpty)
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{
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isFrameEmpty = false;
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gifSender->sendClear(&zBuffer);
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}
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}
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void Renderer::endFrame(float fps)
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{
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if (!isFrameEmpty)
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{
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if (fps > 49.0F)
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graph_wait_vsync();
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flipBuffers();
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}
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}
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/** We need to flip buffers outside of the chain, for some reason,
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* so we use a separate small packet
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* Do not use this method. This is called via packetManager
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*/
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void Renderer::flipBuffers()
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{
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graph_set_framebuffer_filtered(
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frameBuffers[context].address,
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frameBuffers[context].width,
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frameBuffers[context].psm,
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0,
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0);
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context ^= 1;
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isFrameEmpty = 1;
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qword_t *q = flipPacket->data;
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q = draw_framebuffer(q, 0, &frameBuffers[context]);
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q = draw_finish(q);
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dma_wait_fast();
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dma_channel_send_normal_ucab(DMA_CHANNEL_GIF, flipPacket->data, q - flipPacket->data, 0);
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draw_wait_finish();
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}
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