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Diffstat (limited to 'src/gallium/state_trackers/d3d1x/progs/d3d11gears/d3d11gears.cpp')
| -rwxr-xr-x | src/gallium/state_trackers/d3d1x/progs/d3d11gears/d3d11gears.cpp | 573 |
1 files changed, 573 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/d3d1x/progs/d3d11gears/d3d11gears.cpp b/src/gallium/state_trackers/d3d1x/progs/d3d11gears/d3d11gears.cpp new file mode 100755 index 00000000000..0edf1f2ef13 --- /dev/null +++ b/src/gallium/state_trackers/d3d1x/progs/d3d11gears/d3d11gears.cpp @@ -0,0 +1,573 @@ +/* +* Copyright (C) 1999-2001 Brian Paul All Rights Reserved. +* Copyright (C) 2009-2010 Luca Barbieri All Rights Reserved. +* +* Permission is hereby granted, free of charge, to any person obtaining a +* copy of this software and associated documentation files (the "Software"), +* to deal in the Software without restriction, including without limitation +* the rights to use, copy, modify, merge, publish, distribute, sublicense, +* and/or sell copies of the Software, and to permit persons to whom the +* Software is furnished to do so, subject to the following conditions: +*. +* The above copyright notice and this permission notice shall be included +* in all copies or substantial portions of the Software. +* +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +*/ + +/* +* This is a port of the infamous "glxgears" demo to straight EGL +* Port by Dane Rushton 10 July 2005 +* +* This a rewrite of the 'eglgears' demo in straight Gallium +* Port by Luca Barbieri +* +* This a port of the 'galliumgears' demo to Direct3D 11 +* Port by Luca Barbieri +*/ + +#define _USE_MATH_DEFINES +#include "d3d11app.h" +#include "d3d11u.h" +#include "d3d11gears.hlsl.ps.h" +#include "d3d11gears.hlsl.vs.h" + +#include <stdlib.h> +#include <stdio.h> +#include <math.h> +#include <float.h> + +struct gear +{ + struct mesh* mesh; + float x; + float y; + float t0; + float wmul; + float4 color; +}; + +struct cbuf_t +{ + float4x4 projection; + float4x4 modelview; + float4 light; + float4 diffuse; + float4 specular; + float specular_power; + float padding[3]; +}; + +struct gear gears[3]; + +struct vertex +{ + float position[3]; + float normal[3]; + + vertex(float x, float y, float z, float nx, float ny, float nz) + { + position[0] = x; + position[1] = y; + position[2] = z; + normal[0] = nx; + normal[1] = ny; + normal[2] = nz; + } +}; + +#define VERT(x, y, z) vertices.push_back(vertex((x), (y), (z), (nx), (ny), (nz))) + +static mesh* build_gear(ID3D11Device* dev, int triangle_budget, float inner_radius, float outer_radius, float width, int teeth, float tooth_depth) +{ + int i, j, k; + float r0, r1, r2; + float da; + float nx, ny, nz; + int face; + int segs = 4; + int base_triangles = teeth * segs * 2 * 2; + int divs0 = (triangle_budget / base_triangles) - 1; + int divs = (divs0 > 0) ? divs0 : 1; + float* c = (float*)malloc(teeth * segs * sizeof(float)); + float* s = (float*)malloc(teeth * segs * sizeof(float)); + float* dc = (float*)malloc(teeth * segs * divs * sizeof(float)); + float* ds = (float*)malloc(teeth * segs * divs * sizeof(float)); + int num_vertices = teeth * segs * 2 * (3 + 2 * divs); + int num_triangles = base_triangles * (1 + divs); + printf("Creating gear with %i teeth using %i vertices used in %i triangles\n", teeth, num_vertices, num_triangles); + triangle_list_indices<> indices; + std::vector<vertex> vertices; + + r0 = inner_radius; + r1 = outer_radius - tooth_depth / 2.0f; + r2 = outer_radius + tooth_depth / 2.0f; + + da = (float)(2.0 * M_PI / (teeth * segs * divs)); + for(i = 0; i < teeth * segs * divs; ++i) { + float angle = da * i; + ds[i] = sin(angle); + dc[i] = cos(angle); + } + + for(i = 0; i < teeth * segs; ++i) { + s[i] = ds[i * divs]; + c[i] = dc[i * divs]; + } + + /* faces */ + for(face = -1; face <= 1; face += 2) { + float z = width * face * 0.5f; + nx = 0.0f; + ny = 0.0f; + nz = (float)face; + + indices.flip = face > 0; + + assert(segs == 4); + for(i = 0; i < teeth; ++i) { + VERT(r1 * c[segs * i], r1 * s[segs * i], z); + VERT(r2 * c[segs * i + 1], r2 * s[segs * i + 1], z); + VERT(r2 * c[segs * i + 2], r2 * s[segs * i + 2], z); + VERT(r1 * c[segs * i + 3], r1 * s[segs * i + 3], z); + } + + for(i = 0; i < teeth * segs * divs; ++i) { + VERT(r0 * dc[i], r0 * ds[i], z); + } + + for(i = 0; i < teeth; ++i) { + for(j = i * segs; j < (i + 1) * segs; ++j) { + int nextj = j + 1; + if(nextj == teeth * segs) + nextj = 0; + + for(k = j * divs; k < (j + 1) * divs; ++k) { + int nextk = k + 1; + if(nextk == teeth * segs * divs) + nextk = 0; + indices.poly(teeth * segs + k, j, teeth * segs + nextk); + } + + indices.poly(teeth * segs + nextj * divs, j, nextj); + } + } + + indices.base += teeth * segs * (1 + divs); + } + + /* teeth faces */ + indices.flip = true; + float z = width * 0.5f; + + float* coords = (float*)malloc((segs + 1) * 2 * sizeof(float)); + nz = 0; + for(i = 0; i < teeth; i++) { + int next = i + 1; + if(next == teeth) + next = 0; + + coords[0] = r1 * c[segs * i]; + coords[1] = r1 * s[segs * i]; + coords[2] = r2 * c[segs * i + 1]; + coords[3] = r2 * s[segs * i + 1]; + coords[4] = r2 * c[segs * i + 2]; + coords[5] = r2 * s[segs * i + 2]; + coords[6] = r1 * c[segs * i + 3]; + coords[7] = r1 * s[segs * i + 3]; + coords[8] = r1 * c[segs * next]; + coords[9] = r1 * s[segs * next]; + + for(int j = 0; j < segs; ++j) { + float dx = coords[j * 2] - coords[j * 2 + 2]; + float dy = coords[j * 2 + 1] - coords[j * 2 + 3]; + float len = hypotf(dx, dy); + nx = -dy / len; + ny = dx / len; + VERT(coords[j * 2], coords[j * 2 + 1], z); + VERT(coords[j * 2], coords[j * 2 + 1], -z); + VERT(coords[j * 2 + 2], coords[j * 2 + 3], z); + VERT(coords[j * 2 + 2], coords[j * 2 + 3], -z); + + indices.poly(0, 1, 3, 2); + indices.base += 4; + } + } + free(coords); + + /* inner part - simulate a cylinder */ + indices.flip = true; + for(i = 0; i < teeth * segs * divs; i++) { + int next = i + 1; + if(next == teeth * segs * divs) + next = 0; + + nx = -dc[i]; + ny = -ds[i]; + VERT(r0 * dc[i], r0 * ds[i], -width * 0.5f); + VERT(r0 * dc[i], r0 * ds[i], width * 0.5f); + + indices.poly(i * 2, i * 2 + 1, next * 2 + 1, next * 2); + } + + indices.base += teeth * segs * divs * 2; + free(c); + free(s); + free(dc); + free(ds); + + D3D11_INPUT_ELEMENT_DESC elements[2] = + { + {"POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0}, + {"NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 12, D3D11_INPUT_PER_VERTEX_DATA, 0}, + }; + + return new mesh(dev, D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST, + elements, 2, + g_vs, sizeof(g_vs), + &vertices[0], sizeof(vertices[0]), vertices.size(), + &indices[0], sizeof(indices[0]), indices.size()); +} + +struct d3d11gears : public d3d11_application +{ + float view_rotx; + float view_roty; + float view_rotz; + int wireframe; + int triangles; + float speed; + float period; + unsigned impressions; + bool blue_only; + + float last_time; + + int cur_width; + int cur_height; + + ID3D11DepthStencilView* zsv; + ID3D11RenderTargetView* offscreen_rtv; + ID3D11ShaderResourceView* offscreen_srv; + + ID3D11Device* dev; + ID3D11BlendState* blend; + ID3D11DepthStencilState* zsa; + + ID3D11PixelShader* ps; + ID3D11VertexShader* vs; + ID3D11Buffer* cb; + + d3d11_blitter* blitter; + + d3d11gears() + : cur_width(-1), cur_height(-1), zsv(0), offscreen_rtv(0), offscreen_srv(0) + { + view_rotx = (float)(M_PI / 9.0); + view_roty = (float)(M_PI / 6.0); + view_rotz = 0.0f; + wireframe = 0; + triangles = 3200; + speed = 1.0f; + period = -1.0f; + impressions = 1; + blue_only = false; + } + + void draw_one(ID3D11DeviceContext* ctx, cbuf_t& cbd, const float4x4& modelview, float angle) + { + for(unsigned i = blue_only ? 2 : 0; i < 3; ++i) + { + float4x4 m2 = modelview; + m2 = mat_push_translate(m2, gears[i].x, gears[i].y, 0.0f); + m2 = mat_push_rotate(m2, 2, angle * gears[i].wmul + gears[i].t0); + + cbd.modelview = m2; + cbd.diffuse = gears[i].color; + cbd.specular = gears[i].color; + cbd.specular_power = 5.0f; + + ctx->UpdateSubresource(cb, 0, 0, &cbd, 0, 0); + + gears[i].mesh->bind_and_draw(ctx); + } + } + + float get_angle(double time) + { + // designed so that 1 = original glxgears speed + float mod_speed = M_PI * 70.0f / 180.0f * speed; + if(period < 0) + return (float)(time * mod_speed); + else + return (float)(cos(time / period) * period * mod_speed); + } + + void init_for_dimensions(unsigned width, unsigned height) + { + if(zsv) + zsv->Release(); + ID3D11Texture2D* zsbuf; + D3D11_TEXTURE2D_DESC zsbufd; + memset(&zsbufd, 0, sizeof(zsbufd)); + zsbufd.Width = width; + zsbufd.Height = height; + zsbufd.Format = DXGI_FORMAT_D24_UNORM_S8_UINT; + zsbufd.ArraySize = 1; + zsbufd.MipLevels = 1; + zsbufd.SampleDesc.Count = 1; + zsbufd.BindFlags = D3D11_BIND_DEPTH_STENCIL; + ensure(dev->CreateTexture2D(&zsbufd, 0, &zsbuf)); + ensure(dev->CreateDepthStencilView(zsbuf, 0, &zsv)); + zsbuf->Release(); + + ID3D11Texture2D* offscreen; + if(offscreen_rtv) + { + offscreen_rtv->Release(); + offscreen_srv->Release(); + offscreen_rtv = 0; + offscreen_srv = 0; + } + + if(impressions > 1) + { + DXGI_FORMAT formats[] = { + DXGI_FORMAT_R32G32B32A32_FLOAT, + DXGI_FORMAT_R16G16B16A16_UNORM, + DXGI_FORMAT_R16G16B16A16_FLOAT, + DXGI_FORMAT_R10G10B10A2_UNORM, + }; + DXGI_FORMAT format = DXGI_FORMAT_R8G8B8A8_UNORM; // this won't work well at all + unsigned needed_support = D3D11_FORMAT_SUPPORT_RENDER_TARGET | D3D11_FORMAT_SUPPORT_BLENDABLE | D3D11_FORMAT_SUPPORT_SHADER_SAMPLE; + for(unsigned i = 0; i < sizeof(formats); ++i) + { + unsigned support; + dev->CheckFormatSupport(DXGI_FORMAT_R32G32B32A32_FLOAT, &support); + if((support & needed_support) == needed_support) + { + format = formats[i]; + break; + } + } + + + D3D11_TEXTURE2D_DESC offscreend; + memset(&offscreend, 0, sizeof(offscreend)); + offscreend.Width = width; + offscreend.Height = height; + + offscreend.Format = format; + offscreend.MipLevels = 1; + offscreend.ArraySize = 1; + offscreend.SampleDesc.Count = 1; + offscreend.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET; + ensure(dev->CreateTexture2D(&offscreend, 0, &offscreen)); + ensure(dev->CreateRenderTargetView(offscreen, 0, &offscreen_rtv)); + ensure(dev->CreateShaderResourceView(offscreen, 0, &offscreen_srv)); + offscreen->Release(); + } + + cur_width = width; + cur_height = height; + } + + void draw(ID3D11DeviceContext* ctx, ID3D11RenderTargetView* rtv, unsigned width, unsigned height, double time) + { + D3D11_VIEWPORT vp; + memset(&vp, 0, sizeof(vp)); + vp.Width = (float)width; + vp.Height = (float)height; + vp.MaxDepth = 1.0f; + + if((int)width != cur_width || (int)height != cur_height) + init_for_dimensions(width, height); + + float4 lightpos = vec(5.0f, 5.0f, 10.0f, 0.0f); + float black[4] = {0.0, 0.0, 0.0, 0}; + + float4x4 proj; + float4x4 m; + + float xr = (float)width / (float)height; + float yr = 1.0f; + if(xr < 1.0f) { + yr /= xr; + xr = 1.0f; + } + proj = mat4x4_frustum(-xr, xr, -yr, yr, 5.0f, 60.0f); + + m = mat4x4_diag(1.0f); + m = mat_push_translate(m, 0.0f, 0.0f, -40.0f); + m = mat_push_rotate(m, 0, view_rotx); + m = mat_push_rotate(m, 1, view_roty); + m = mat_push_rotate(m, 2, view_rotz); + + cbuf_t cbd; + + cbd.projection = proj; + cbd.light = lightpos; + + float blend_factor[4] = {1.0f / (float)impressions, 1.0f / (float)impressions, 1.0f / (float)impressions, 1.0f / (float)impressions}; + + ID3D11RenderTargetView* render_rtv; + if(impressions == 1) + render_rtv = rtv; + else + render_rtv = offscreen_rtv; + + ctx->RSSetViewports(1, &vp); + ctx->ClearRenderTargetView(render_rtv, black); + + ctx->PSSetShader(ps, 0, 0); + ctx->VSSetShader(vs, 0, 0); + + ctx->PSSetConstantBuffers(0, 1, &cb); + ctx->VSSetConstantBuffers(0, 1, &cb); + + if(impressions == 1) + { + ctx->OMSetBlendState(0, 0, ~0); + ctx->OMSetDepthStencilState(0, 0); + ctx->OMSetRenderTargets(1, &rtv, zsv); + ctx->ClearDepthStencilView(zsv, D3D11_CLEAR_DEPTH | D3D11_CLEAR_STENCIL, 1.0, 0); + draw_one(ctx, cbd, m, get_angle(time)); + } + else + { + ctx->OMSetBlendState(blend, blend_factor, ~0); + + float time_delta = (float)time - last_time; + float time_delta_per_impression = time_delta / impressions; + float base_time = last_time + time_delta_per_impression / 2; + for(unsigned impression = 0; impression < impressions; ++impression) + { + float impression_time = base_time + time_delta_per_impression * impression; + + ctx->ClearDepthStencilView(zsv, D3D11_CLEAR_DEPTH | D3D11_CLEAR_STENCIL, 1.0, 0); + + // do early z-pass since we must not write any pixel more than once due to blending + for(unsigned pass = 0; pass < 2; ++pass) + { + if(pass == 0) + { + ctx->OMSetRenderTargets(0, 0, zsv); + ctx->OMSetDepthStencilState(0, 0); + } + else + { + ctx->OMSetRenderTargets(1, &render_rtv, zsv); + ctx->OMSetDepthStencilState(zsa, 0); + } + + draw_one(ctx, cbd, m, get_angle(impression_time)); + } + } + + blitter->bind_draw_and_unbind(ctx, offscreen_srv, rtv, 0, 0, (float)width, (float)height, false); + } + last_time = (float)time; + } + + bool init(ID3D11Device* dev, int argc, char** argv) + { + this->dev = dev; + + for(char** p = argv + 1; *p; ++p) { + if(!strcmp(*p, "-w")) + wireframe = 1; + else if(!strcmp(*p, "-b")) + blue_only = true; + else if(!strcmp(*p, "-t")) + triangles = atoi(*++p); + else if(!strcmp(*p, "-m")) + impressions = (float)atof(*++p); + else if(!strcmp(*p, "-p")) + period = (float)atof(*++p); + else if(!strcmp(*p, "-s")) + speed = (float)atof(*++p); + else { + fprintf(stderr, "Usage: d3d11gears [-v|-w] [-t TRIANGLES]\n"); + fprintf(stderr, "d3d11gears is an enhanced port of glxgears to Direct3D 11\n"); + fprintf(stderr, "\n"); + //fprintf(stderr, "-v\t\tuse per-vertex diffuse-only lighting (classic glxgears look)\n"); + fprintf(stderr, "-w\t\twireframe mode\n"); + fprintf(stderr, "-t TRIANGLES\ttriangle budget (default is 3200)\n"); + fprintf(stderr, "-m IMPRESSIONS\tmotion blur impressions (default is 1)\n"); + fprintf(stderr, "-p PERIOD\tspeed reversal period (default is infinite)\n"); + fprintf(stderr, "-s SPEED\tgear speed (default is 1.0)\n"); + fprintf(stderr, "-b\tonly show blue gear (for faster motion blur)\n"); + return false; + } + } + + ensure(dev->CreatePixelShader(g_ps, sizeof(g_ps), NULL, &ps)); + ensure(dev->CreateVertexShader(g_vs, sizeof(g_vs), NULL, &vs)); + + gears[0].color = vec(0.8f, 0.1f, 0.0f, 1.0f); + gears[1].color = vec(0.0f, 0.8f, 0.2f, 1.0f); + gears[2].color = vec(0.2f, 0.2f, 1.0f, 1.0f); + + gears[0].mesh = build_gear(dev, triangles / 2, 1.0f, 4.0f, 1.0f, 20, 0.7f); + gears[1].mesh = build_gear(dev, triangles / 4, 0.5f, 2.0f, 2.0f, 10, 0.7f); + gears[2].mesh = build_gear(dev, triangles / 4, 1.3f, 2.0f, 0.5f, 10, 0.7f); + + gears[0].x = -3.0f; + gears[0].y = -2.0f; + gears[0].wmul = 1.0f; + gears[0].t0 = 0.0 * M_PI / 180.0f; + + gears[1].x = 3.1f; + gears[1].y = -2.0f; + gears[1].wmul = -2.0f; + gears[1].t0 = -9.0f * (float)M_PI / 180.0f; + + gears[2].x = -3.1f; + gears[2].y = 4.2f; + gears[2].wmul = -2.0f; + gears[2].t0 = -25.0f * (float)M_PI / 180.0f; + + D3D11_BUFFER_DESC bufferd; + memset(&bufferd, 0, sizeof(bufferd)); + bufferd.ByteWidth = sizeof(cbuf_t); + bufferd.Usage = D3D11_USAGE_DEFAULT; + bufferd.BindFlags = D3D11_BIND_CONSTANT_BUFFER; + ensure(dev->CreateBuffer(&bufferd, 0, &cb)); + + if(impressions > 1) + { + D3D11_BLEND_DESC blendd; + memset(&blendd, 0, sizeof(blendd)); + blendd.RenderTarget[0].BlendEnable = TRUE; + blendd.RenderTarget[0].BlendOp = blendd.RenderTarget[0].BlendOpAlpha + = D3D11_BLEND_OP_ADD; + blendd.RenderTarget[0].SrcBlend = blendd.RenderTarget[0].SrcBlendAlpha + = D3D11_BLEND_BLEND_FACTOR; + blendd.RenderTarget[0].DestBlend = blendd.RenderTarget[0].DestBlendAlpha + = D3D11_BLEND_ONE; + blendd.RenderTarget[0].RenderTargetWriteMask = D3D11_COLOR_WRITE_ENABLE_ALL; + ensure(dev->CreateBlendState(&blendd, &blend)); + + D3D11_DEPTH_STENCIL_DESC zsad; + memset(&zsad, 0, sizeof(zsad)); + zsad.DepthEnable = TRUE; + zsad.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ZERO; + zsad.DepthFunc = D3D11_COMPARISON_EQUAL; + ensure(dev->CreateDepthStencilState(&zsad, &zsa)); + + blitter = new d3d11_blitter(dev); + } + + return true; + } +}; + +d3d11_application* d3d11_application_create() +{ + return new d3d11gears(); +} |