From 57a62859f3a9c35eab26535987a28a46441d5969 Mon Sep 17 00:00:00 2001 From: Zack Buhman Date: Sat, 8 Nov 2025 23:55:10 -0600 Subject: [PATCH] add particle_oriented_animated_quad_vbuf --- src/particle_oriented_animated_quad_vbuf.cpp | 799 ++++++++++++++++++ ...article_particle_animated_quad_vbuf.vs.asm | 38 + ...article_particle_animated_quad_vbuf.vs.bin | Bin 0 -> 176 bytes 3 files changed, 837 insertions(+) create mode 100644 src/particle_oriented_animated_quad_vbuf.cpp create mode 100644 src/particle_particle_animated_quad_vbuf.vs.asm create mode 100644 src/particle_particle_animated_quad_vbuf.vs.bin diff --git a/src/particle_oriented_animated_quad_vbuf.cpp b/src/particle_oriented_animated_quad_vbuf.cpp new file mode 100644 index 0000000..5c704c8 --- /dev/null +++ b/src/particle_oriented_animated_quad_vbuf.cpp @@ -0,0 +1,799 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "r500/3d_registers.h" +#include "r500/3d_registers_undocumented.h" +#include "r500/3d_registers_bits.h" +#include "r500/indirect_buffer.h" +#include "r500/shader.h" +#include "r500/display_controller.h" + +#include "drm/buffer.h" +#include "drm/drm.h" + +#include "math/float_types.hpp" +#include "math/transform.hpp" +#include "math/constants.hpp" + +#include "../model/model2.h" + +#define CLEAR_SHADER 0 +#define PLANE_SHADER 1 +#define PARTICLE_SHADER 2 +#define TEXTURE_TILE_SHADER 3 + +const char * vertex_shader_paths[] = { + "clear.vs.bin", + "particle_plane_fan.vs.bin", + "particle_particle_animated_quad_vbuf.vs.bin", + "texture_tile.vs.bin", +}; +const int vertex_shader_paths_length = (sizeof (vertex_shader_paths)) / (sizeof (vertex_shader_paths[0])); +const char * fragment_shader_paths[] = { + "clear.fs.bin", + "particle_plane.fs.bin", + "particle_particle.fs.bin", + "texture_tile.fs.bin", +}; +const int fragment_shader_paths_length = (sizeof (fragment_shader_paths)) / (sizeof (fragment_shader_paths[0])); + +#define PLANE_TEXTURE 0 +#define PARTICLE_TEXTURE 1 + +const char * textures[] = { + "../texture/plane_32x32_rgba8888.data", + "../texture/particle_32x32_rgba8888.data", +}; +const int textures_length = (sizeof (textures)) / (sizeof (textures[0])); + +struct shaders { + struct shader_offset * vertex; + struct shader_offset * fragment; + int vertex_length; + int fragment_length; +}; + +static inline uint32_t xorshift32(uint32_t state) +{ + uint32_t x = state; + x ^= x << 13; + x ^= x >> 17; + x ^= x << 5; + return x; +} + +static inline float xorshift32f(uint32_t& state) +{ + state = xorshift32(state); + return (float)(state & 0xffffff) * (1.0f / 16777215.0f); +} + +const float max_age = 3.0f; + +struct particle { + vec3 position; + float time; + float delta; + vec3 velocity; +}; + +void _3d_clear(const shaders& shaders) +{ + ib_rs_instructions(0); + + ////////////////////////////////////////////////////////////////////////////// + // VAP OUT + ////////////////////////////////////////////////////////////////////////////// + + T0V(VAP_OUT_VTX_FMT_0 + , VAP_OUT_VTX_FMT_0__VTX_POS_PRESENT(1)); + T0V(VAP_OUT_VTX_FMT_1 + , 0); + + // + + ib_zbuffer(ZBUFFER_RELOC_INDEX, 1600, 7); // always + + ib_texture__0(); + + ib_vap_stream_cntl__2(); + + // shaders + T0V(US_PIXSIZE + , US_PIXSIZE__PIX_SIZE(1) + ); + ib_ga_us(&shaders.fragment[CLEAR_SHADER]); + ib_vap_pvs(&shaders.vertex[CLEAR_SHADER]); + + ////////////////////////////////////////////////////////////////////////////// + // VAP INDEX + ////////////////////////////////////////////////////////////////////////////// + + T0V(VAP_INDEX_OFFSET, 0); + + T0V(VAP_VF_MAX_VTX_INDX + , VAP_VF_MAX_VTX_INDX__MAX_INDX(0) + ); + T0V(VAP_VF_MIN_VTX_INDX + , VAP_VF_MIN_VTX_INDX__MIN_INDX(0) + ); + + ////////////////////////////////////////////////////////////////////////////// + // VAP + ////////////////////////////////////////////////////////////////////////////// + + T0V(VAP_CLIP_CNTL + , VAP_CLIP_CNTL__CLIP_DISABLE(1) + ); + + T0V(VAP_VTE_CNTL + , VAP_VTE_CNTL__VTX_XY_FMT(1) // disable W division + | VAP_VTE_CNTL__VTX_Z_FMT(1) // disable W division + ); + + T0V(VAP_CNTL_STATUS + , VAP_CNTL_STATUS__PVS_BYPASS(0) + ); + + ////////////////////////////////////////////////////////////////////////////// + // GA POINT SIZE + ////////////////////////////////////////////////////////////////////////////// + + T0V(GA_POINT_SIZE + , GA_POINT_SIZE__HEIGHT(600 * 12) + | GA_POINT_SIZE__WIDTH(800 * 12) + ); + + ////////////////////////////////////////////////////////////////////////////// + // 3D_DRAW + ////////////////////////////////////////////////////////////////////////////// + + const int dwords_per_vtx = 2; + + T0V(VAP_VTX_SIZE + , VAP_VTX_SIZE__DWORDS_PER_VTX(dwords_per_vtx) + ); + + const float center[] = { + 800.0f, 600.0f, + }; + const int vertex_count = 1; + T3(_3D_DRAW_IMMD_2, (1 + vertex_count * dwords_per_vtx) - 1); + TU( VAP_VF_CNTL__PRIM_TYPE(1) // point list + | VAP_VF_CNTL__PRIM_WALK(3) + | VAP_VF_CNTL__INDEX_SIZE(0) + | VAP_VF_CNTL__VTX_REUSE_DIS(0) + | VAP_VF_CNTL__DUAL_INDEX_MODE(0) + | VAP_VF_CNTL__USE_ALT_NUM_VERTS(0) + | VAP_VF_CNTL__NUM_VERTICES(vertex_count) + ); + for (int i = 0; i < 2; i++) { + TF(center[i]); + } +} + +mat4x4 perspective(float low1, float high1, + float low2, float high2, + float low3, float high3) +{ + float scale2 = (high2 - low2) / (high1 - low1); + float scale3 = (high3 - low3) / (high1 - low1); + + mat4x4 m1 = mat4x4(1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, -low1, + 0, 0, 0, 1 + ); + + mat4x4 m2 = mat4x4(1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, scale2, low2, + 0, 0, scale3, low3 + ); + + return m2 * m1; +} + +void _3d_plane_inner() +{ + ////////////////////////////////////////////////////////////////////////////// + // 3D_DRAW + ////////////////////////////////////////////////////////////////////////////// + + const int dwords_per_vtx = 2; + + T0V(VAP_VTX_SIZE + , VAP_VTX_SIZE__DWORDS_PER_VTX(dwords_per_vtx) + ); + + const vec2 vertices[] = { + {0.0, 0.0f}, + {1.0, 0.0f}, + {1.0, 1.0f}, + {0.0, 1.0f}, + }; + + const int vertex_count = 4; + T3(_3D_DRAW_IMMD_2, (1 + vertex_count * dwords_per_vtx) - 1); + TU( VAP_VF_CNTL__PRIM_TYPE(5) // triangle fan + | VAP_VF_CNTL__PRIM_WALK(3) + | VAP_VF_CNTL__INDEX_SIZE(0) + | VAP_VF_CNTL__VTX_REUSE_DIS(0) + | VAP_VF_CNTL__DUAL_INDEX_MODE(0) + | VAP_VF_CNTL__USE_ALT_NUM_VERTS(0) + | VAP_VF_CNTL__NUM_VERTICES(vertex_count) + ); + for (int i = 0; i < vertex_count; i++) { + TF(vertices[i].x); + TF(vertices[i].y); + } +} + +void _3d_particle_inner(int particles_length, int position_offset) +{ + const int vertex_count = 4 * particles_length; + + ////////////////////////////////////////////////////////////////////////////// + // VF + ////////////////////////////////////////////////////////////////////////////// + + T0V(VAP_VF_MAX_VTX_INDX + , VAP_VF_MAX_VTX_INDX__MAX_INDX(vertex_count - 1) + ); + T0V(VAP_VF_MIN_VTX_INDX + , VAP_VF_MIN_VTX_INDX__MIN_INDX(0) + ); + + ////////////////////////////////////////////////////////////////////////////// + // AOS + ////////////////////////////////////////////////////////////////////////////// + + T3(_3D_LOAD_VBPNTR, (4 - 1)); + TU( // VAP_VTX_NUM_ARRAYS + VAP_VTX_NUM_ARRAYS__VTX_NUM_ARRAYS(2) + | VAP_VTX_NUM_ARRAYS__VC_FORCE_PREFETCH(1) + ); + TU( // VAP_VTX_AOS_ATTR01 + VAP_VTX_AOS_ATTR__VTX_AOS_COUNT0(3) + | VAP_VTX_AOS_ATTR__VTX_AOS_STRIDE0(3) + | VAP_VTX_AOS_ATTR__VTX_AOS_COUNT1(2) + | VAP_VTX_AOS_ATTR__VTX_AOS_STRIDE1(2) + ); + TU( // VAP_VTX_AOS_ADDR0 + (4 * position_offset); + ); + TU( // VAP_VTX_AOS_ADDR1 + (4 * 0); + ); + + T3(_NOP, 0); + TU(VERTEXBUFFER_RELOC_INDEX * 4); // index into relocs array for VAP_VTX_AOS_ADDR0 + T3(_NOP, 0); + TU(VERTEXBUFFER_RELOC_INDEX * 4); // index into relocs array for VAP_VTX_AOS_ADDR0 + + ////////////////////////////////////////////////////////////////////////////// + // 3D_DRAW + ////////////////////////////////////////////////////////////////////////////// + + T3(_3D_DRAW_VBUF_2, (1 - 1)); + TU( VAP_VF_CNTL__PRIM_TYPE(13) // quad list + | VAP_VF_CNTL__PRIM_WALK(2) // vertex list (data fetched from memory) + | VAP_VF_CNTL__INDEX_SIZE(0) + | VAP_VF_CNTL__VTX_REUSE_DIS(0) + | VAP_VF_CNTL__DUAL_INDEX_MODE(0) + | VAP_VF_CNTL__USE_ALT_NUM_VERTS(0) + | VAP_VF_CNTL__NUM_VERTICES(vertex_count) + ); +} + +void _3d_plane(const shaders& shaders, + const mat4x4& world_to_clip, + float theta) +{ + ib_rs_instructions(1); + + ////////////////////////////////////////////////////////////////////////////// + // VAP OUT + ////////////////////////////////////////////////////////////////////////////// + + T0V(VAP_OUT_VTX_FMT_0 + , VAP_OUT_VTX_FMT_0__VTX_POS_PRESENT(1)); + T0V(VAP_OUT_VTX_FMT_1 + , VAP_OUT_VTX_FMT_1__TEX_0_COMP_CNT(4)); + + // + + ib_zbuffer(ZBUFFER_RELOC_INDEX, 1600, 1); // less + + int width = 32; + int height = 32; + int macrotile = 0; + int microtile = 0; + int clamp = 0; // wrap/repeat + ib_texture__1(TEXTUREBUFFER_RELOC_INDEX + PLANE_TEXTURE, + width, height, + macrotile, microtile, + clamp); + + ib_vap_stream_cntl__2(); + + // shaders + T0V(US_PIXSIZE + , US_PIXSIZE__PIX_SIZE(4) + ); + ib_ga_us(&shaders.fragment[PLANE_SHADER]); + ib_vap_pvs(&shaders.vertex[PLANE_SHADER]); + + ////////////////////////////////////////////////////////////////////////////// + // VAP + ////////////////////////////////////////////////////////////////////////////// + + T0V(VAP_CLIP_CNTL + , VAP_CLIP_CNTL__PS_UCP_MODE(3) + ); + + T0V(VAP_VTE_CNTL + , VAP_VTE_CNTL__VPORT_X_SCALE_ENA(1) + | VAP_VTE_CNTL__VPORT_X_OFFSET_ENA(1) + | VAP_VTE_CNTL__VPORT_Y_SCALE_ENA(1) + | VAP_VTE_CNTL__VPORT_Y_OFFSET_ENA(1) + | VAP_VTE_CNTL__VPORT_Z_SCALE_ENA(1) + | VAP_VTE_CNTL__VPORT_Z_OFFSET_ENA(1) + | VAP_VTE_CNTL__VTX_XY_FMT(0) // enable W division + | VAP_VTE_CNTL__VTX_Z_FMT(0) // enable W division + | VAP_VTE_CNTL__VTX_W0_FMT(1) + | VAP_VTE_CNTL__SERIAL_PROC_ENA(0) + ); + + T0V(VAP_CNTL_STATUS + , VAP_CNTL_STATUS__PVS_BYPASS(0) + ); + + ////////////////////////////////////////////////////////////////////////////// + // matrix + ////////////////////////////////////////////////////////////////////////////// + + mat4x4 s = scale(1.0f); + mat4x4 rx = rotate_x(-PI / 2.0f); + mat4x4 local_to_world = s * rx; + + mat4x4 trans = world_to_clip * local_to_world; + + ////////////////////////////////////////////////////////////////////////////// + // consts + ////////////////////////////////////////////////////////////////////////////// + + T0V(VAP_PVS_STATE_FLUSH_REG, 0x00000000); + + const float consts[] = { + // 0 + trans[0][0], trans[0][1], trans[0][2], trans[0][3], + trans[1][0], trans[1][1], trans[1][2], trans[1][3], + trans[2][0], trans[2][1], trans[2][2], trans[2][3], + trans[3][0], trans[3][1], trans[3][2], trans[3][3], + // 4 + -2.0f, 0, 0, 0, + }; + ib_vap_pvs_const_cntl(consts, (sizeof (consts))); + + // plane_inner + + _3d_plane_inner(); +} + +void _3d_particle(const shaders& shaders, + const mat4x4& world_to_clip, + const mat4x4& world_to_view, + const particle * particles, + const int particles_length, + const float theta, + float * vertexbuffer_ptr) +{ + // enable blending + T0V(RB3D_BLENDCNTL + , RB3D_BLENDCNTL__ALPHA_BLEND_ENABLE__ENABLE + | RB3D_BLENDCNTL__READ_ENABLE(1) + | RB3D_BLENDCNTL__SRCBLEND__GL_ONE + | RB3D_BLENDCNTL__DESTBLEND__GL_ONE + | RB3D_BLENDCNTL__SRC_ALPHA_0_NO_READ(0) + | RB3D_BLENDCNTL__SRC_ALPHA_1_NO_READ(0) + ); + + ib_rs_instructions(1); + + ////////////////////////////////////////////////////////////////////////////// + // VAP OUT + ////////////////////////////////////////////////////////////////////////////// + + T0V(VAP_OUT_VTX_FMT_0 + , VAP_OUT_VTX_FMT_0__VTX_POS_PRESENT(1)); + T0V(VAP_OUT_VTX_FMT_1 + , VAP_OUT_VTX_FMT_1__TEX_0_COMP_CNT(4)); + + // + + //ib_zbuffer(ZBUFFER_RELOC_INDEX, 1600, 1); // less + T0V(ZB_CNTL + , 0 + ); + T0V(ZB_ZSTENCILCNTL + , 0 + ); + + int width = 32; + int height = 32; + int macrotile = 0; + int microtile = 0; + int clamp = 0; // wrap/repeat + ib_texture__1(TEXTUREBUFFER_RELOC_INDEX + PARTICLE_TEXTURE, + width, height, + macrotile, microtile, + clamp); + + ib_vap_stream_cntl__32(); + + // shaders + T0V(US_PIXSIZE + , US_PIXSIZE__PIX_SIZE(4) + ); + ib_ga_us(&shaders.fragment[PARTICLE_SHADER]); + ib_vap_pvs(&shaders.vertex[PARTICLE_SHADER]); + + ////////////////////////////////////////////////////////////////////////////// + // VAP + ////////////////////////////////////////////////////////////////////////////// + + T0V(VAP_CLIP_CNTL + , VAP_CLIP_CNTL__PS_UCP_MODE(3) + ); + + T0V(VAP_VTE_CNTL + , VAP_VTE_CNTL__VPORT_X_SCALE_ENA(1) + | VAP_VTE_CNTL__VPORT_X_OFFSET_ENA(1) + | VAP_VTE_CNTL__VPORT_Y_SCALE_ENA(1) + | VAP_VTE_CNTL__VPORT_Y_OFFSET_ENA(1) + | VAP_VTE_CNTL__VPORT_Z_SCALE_ENA(1) + | VAP_VTE_CNTL__VPORT_Z_OFFSET_ENA(1) + | VAP_VTE_CNTL__VTX_XY_FMT(0) // enable W division + | VAP_VTE_CNTL__VTX_Z_FMT(0) // enable W division + | VAP_VTE_CNTL__VTX_W0_FMT(1) + | VAP_VTE_CNTL__SERIAL_PROC_ENA(0) + ); + + T0V(VAP_CNTL_STATUS + , VAP_CNTL_STATUS__PVS_BYPASS(0) + ); + + ////////////////////////////////////////////////////////////////////////////// + // matrix + ////////////////////////////////////////////////////////////////////////////// + + mat4x4 s = scale(1.0f); + mat4x4 local_to_world = s; + + mat4x4 local_to_view = world_to_view * local_to_world; + + mat4x4 trans = world_to_clip * local_to_world; + + ////////////////////////////////////////////////////////////////////////////// + // consts + ////////////////////////////////////////////////////////////////////////////// + + T0V(VAP_PVS_STATE_FLUSH_REG, 0x00000000); + + const float scale = 0.005f; + + const float consts[] = { + // 0 + trans[0][0], trans[0][1], trans[0][2], trans[0][3], + trans[1][0], trans[1][1], trans[1][2], trans[1][3], + trans[2][0], trans[2][1], trans[2][2], trans[2][3], + trans[3][0], trans[3][1], trans[3][2], trans[3][3], + + // 4: dx (right) + local_to_view[0][0], local_to_view[0][1], local_to_view[0][2], 0, + + // 5: dy (up) + local_to_view[1][0], local_to_view[1][1], local_to_view[1][2], 0, + + // 6: xyz:position w:scale + 0, 0, 0, scale, + + // 7: + -2.0, 0, 0, 0, + }; + ib_vap_pvs_const_cntl(consts, (sizeof (consts))); + + int offset = particles_length * 4 * 2; + int ix = 0; + for (int i = 0; i < particles_length; i++) { + const vec3& position = particles[i].position; + for (int j = 0; j < 4; j++) { + vertexbuffer_ptr[offset + ix] = position.x; + ix++; + vertexbuffer_ptr[offset + ix] = position.y; + ix++; + vertexbuffer_ptr[offset + ix] = position.z; + ix++; + }; + } + asm volatile ("" ::: "memory"); + + _3d_particle_inner(particles_length, offset); +} + +int indirect_buffer(const shaders& shaders, + const particle * particles, + const int particles_length, + float theta, + float * vertexbuffer_ptr) +{ + int width = 1600; + int height = 1200; + int pitch = width; + + ib_ix = 0; + + ib_generic_initialization(); + + T0V(RB3D_BLENDCNTL, 0); + T0V(RB3D_ABLENDCNTL, 0); + + ib_viewport(width, height); + ib_colorbuffer(COLORBUFFER_RELOC_INDEX, pitch, 0, 0); + + T0V(GB_ENABLE, 0); + + T0V(US_OUT_FMT_0 + , US_OUT_FMT__OUT_FMT(0) // C4_8 + | US_OUT_FMT__C0_SEL__BLUE + | US_OUT_FMT__C1_SEL__GREEN + | US_OUT_FMT__C2_SEL__RED + | US_OUT_FMT__C3_SEL__ALPHA + | US_OUT_FMT__OUT_SIGN(0) + ); + T0V(US_OUT_FMT_1 + , US_OUT_FMT__OUT_FMT(15) // render target is not used + ); + T0V(US_OUT_FMT_2 + , US_OUT_FMT__OUT_FMT(15) // render target is not used + ); + T0V(US_OUT_FMT_2 + , US_OUT_FMT__OUT_FMT(15) // render target is not used + ); + + load_pvs_shaders(shaders.vertex, shaders.vertex_length); + load_us_shaders(shaders.fragment, shaders.fragment_length); + + ////////////////////////////////////////////////////////////////////////////// + // DRAW + ////////////////////////////////////////////////////////////////////////////// + + mat4x4 aspect = scale(vec3(3.0f/4.0f, 1, 1)); + mat4x4 p = perspective(0.01f, 3.0f, + 0.001f, 0.999f, + 1.0f, 3.0f); + mat4x4 t = translate(vec3(0, 0, 1)); + mat4x4 rx = rotate_x(-PI / 8.0f); + mat4x4 ry = rotate_y(theta * 0.8f); + mat4x4 world_to_view = t * rx * ry; + + mat4x4 world_to_clip = aspect * p * world_to_view; + + _3d_clear(shaders); + _3d_plane(shaders, world_to_clip, theta); + _3d_particle(shaders, + world_to_clip, + world_to_view, + particles, + particles_length, + theta, + vertexbuffer_ptr); + + ////////////////////////////////////////////////////////////////////////////// + // padding + ////////////////////////////////////////////////////////////////////////////// + + while ((ib_ix % 8) != 0) { + TU(0x80000000); + } + + assert((unsigned int)ib_ix < (sizeof (ib)) / (sizeof (ib[0]))); + + return ib_ix; +} + +void reset_particle(particle& p) +{ + //vec3 pos = normalize(p.position); + + p.position = normalize(vec3(p.velocity.x, + 0, + p.velocity.z)) * 20.0f; + + //printf("position %f %f %f\n", p.position.x, p.position.y, p.position.z); + + p.velocity = vec3(p.velocity.x, + 2.0f * p.delta, + p.velocity.z); + + //printf("velocity %f %f %f\n\n", p.velocity.x, p.velocity.y, p.velocity.z); +} + +void init_particles(particle * particles, const int particles_length) +{ + uint32_t state = 0x12345678; + + const float rl = 1.0f / (float)(particles_length); + + for (int i = 0; i < particles_length; i++) { + float fi = ((float)i); + + float sx = xorshift32f(state) * 2.0f - 1.0f; + float sy = xorshift32f(state) * 2.0f - 1.0f; + float sz = xorshift32f(state) * 2.0f - 1.0f; + + float delta = xorshift32f(state) * 0.5f + 0.5f; + + float vx = xorshift32f(state) * 2.0f - 1.0f; + float vz = xorshift32f(state) * 2.0f - 1.0f; + + particles[i].time = max_age * sinf(fi * rl * 2) * 0.5f + 0.5f; + particles[i].delta = delta; + particles[i].position.x = sx; + particles[i].position.y = sy; + particles[i].position.z = sz; + particles[i].velocity = normalize(vec3(vx * 0.5f, 0.0f, vz * 0.5f)); + } +} + +int init_particles_vertexbuffer(int fd, int particles_length, float ** ptr_out) +{ + const vec2 vertices[] = { + {0.0, 0.0f}, + {1.0, 0.0f}, + {1.0, 1.0f}, + {0.0, 1.0f}, + }; + const int vertex_count = 4; + + const int size = particles_length * vertex_count * 2 * (sizeof (float)) * 2; + + void * ptr; + int handle = create_buffer(fd, size, &ptr); + + float * ptrf = (float*)ptr; + + int ix = 0; + for (int j = 0; j < particles_length; j++) { + for (int i = 0; i < vertex_count; i++) { + ptrf[ix++] = vertices[i].x; + ptrf[ix++] = vertices[i].y; + } + } + printf("init vertexbuffer %d %d\n", ix, size); + + assert(ptr_out != NULL); + *ptr_out = ptrf; + + return handle; +} + +int main() +{ + struct shaders shaders = { + .vertex = load_shaders(vertex_shader_paths, vertex_shader_paths_length), + .fragment = load_shaders(fragment_shader_paths, fragment_shader_paths_length), + .vertex_length = vertex_shader_paths_length, + .fragment_length = fragment_shader_paths_length, + }; + + void * rmmio = map_pci_resource2(); + + int fd = open("/dev/dri/card0", O_RDWR | O_CLOEXEC); + assert(fd != -1); + + const int colorbuffer_size = 1600 * 1200 * 4; + int colorbuffer_handle[2]; + int zbuffer_handle; + int * texturebuffer_handle; + //int flush_handle; + int vertexbuffer_handle; + + void * colorbuffer_ptr[2]; + void * zbuffer_ptr; + float * vertexbuffer_ptr; + + // colorbuffer + colorbuffer_handle[0] = create_buffer(fd, colorbuffer_size, &colorbuffer_ptr[0]); + colorbuffer_handle[1] = create_buffer(fd, colorbuffer_size, &colorbuffer_ptr[1]); + zbuffer_handle = create_buffer(fd, colorbuffer_size, &zbuffer_ptr); + //flush_handle = create_flush_buffer(fd); + texturebuffer_handle = load_textures(fd, textures, textures_length); + + fprintf(stderr, "colorbuffer handle[0] %d\n", colorbuffer_handle[0]); + fprintf(stderr, "colorbuffer handle[1] %d\n", colorbuffer_handle[1]); + fprintf(stderr, "zbuffer handle %d\n", zbuffer_handle); + + int colorbuffer_ix = 0; + float theta = PI * 0.5; + + particle particles[10] = {}; + const int particles_length = (sizeof (particles)) / (sizeof (particles[0])); + vertexbuffer_handle = init_particles_vertexbuffer(fd, particles_length, &vertexbuffer_ptr); + init_particles(particles, particles_length); + fprintf(stderr, "vertexbuffer handle %d\n", vertexbuffer_handle); + + while (true) { + int ib_dwords = indirect_buffer(shaders, + particles, + particles_length, + theta, + vertexbuffer_ptr); + + int ret = drm_radeon_cs(fd, + colorbuffer_handle[colorbuffer_ix], + zbuffer_handle, + vertexbuffer_handle, + texturebuffer_handle, + textures_length, + ib_dwords); + if (ret == -1) + break; + + primary_surface_address(rmmio, colorbuffer_ix); + + // next state + theta += 0.01f; + colorbuffer_ix = (colorbuffer_ix + 1) & 1; + + // + // update particles + // + for (int i = 0; i < particles_length; i++) { + if (particles[i].time <= 0) { + particles[i].time += max_age; + reset_particle(particles[i]); + } else { + particles[i].time -= 0.01f; + particles[i].position += vec3(particles[i].velocity.x * 0.9f, + particles[i].velocity.y * 5.0f, + particles[i].velocity.z * 0.9f); + particles[i].velocity += vec3(0, -0.04, 0); + if (particles[i].position.y < 0) { + particles[i].position.y = fabsf(particles[i].position.y); + particles[i].velocity.y *= -0.6f; + } + } + } + } + + { + printf("colorbuffer0.data\n"); + int out_fd = open("colorbuffer0.data", O_RDWR|O_CREAT, 0644); + assert(out_fd >= 0); + ssize_t write_length = write(out_fd, colorbuffer_ptr[0], colorbuffer_size); + assert(write_length == colorbuffer_size); + close(out_fd); + } + { + printf("zbuffer.data\n"); + int out_fd = open("zbuffer.data", O_RDWR|O_CREAT, 0644); + assert(out_fd >= 0); + ssize_t write_length = write(out_fd, zbuffer_ptr, colorbuffer_size); + assert(write_length == colorbuffer_size); + close(out_fd); + } + + close(fd); +} diff --git a/src/particle_particle_animated_quad_vbuf.vs.asm b/src/particle_particle_animated_quad_vbuf.vs.asm new file mode 100644 index 0000000..2c08251 --- /dev/null +++ b/src/particle_particle_animated_quad_vbuf.vs.asm @@ -0,0 +1,38 @@ +-- const[0-3] : transform matrix +-- const[4] : dx +-- const[5] : dy +---- const[6].xyz: particle_position +-- const[6].w : scale +-- const[7].x : -2.0 + +-- input[0]: particle position +-- input[1]: texture coordinate + +-- +-- dot(m[0], v), dot(m[1], v), dot(m[2], v), dot(m[3], v) +-- + +-- calculate position from texture coordinate +-- x = y * -2 + 1 +-- y = x * -2 + 1 +temp[2].xy = VE_MAD input[1].yx__ const[7].xx__ input[1].11__ ; + +-- ppos = particle_position +temp[0].xyz = VE_ADD input[0].xyz_ input[0].000_ ; + +-- ppos = position.xxx * dx + ppos +temp[0].xyz = VE_MAD temp[2].xxx_ const[4].xyz_ temp[0].xyz_ ; +-- ppos = position.yyy * dy + ppos +temp[0].xyz = VE_MAD temp[2].yyy_ const[5].xyz_ temp[0].xyz_ ; + +-- ppos *= scale +temp[0].xyzw = VE_MUL temp[0].xyz1 const[6].www1 ; + +-- ppos = transform_matrix * ppos +temp[1].x = VE_DOT const[0].xyzw temp[0].xyzw ; +temp[1].y = VE_DOT const[1].xyzw temp[0].xyzw ; +temp[1].z = VE_DOT const[2].xyzw temp[0].xyzw ; +temp[1].w = VE_DOT const[3].xyzw temp[0].xyzw ; + +out[0].xyzw = VE_MAD temp[1].xyzw temp[1].1111 temp[1].0000 ; +out[1].xyzw = VE_MAX input[1].xy00 input[1].xy00 ; diff --git a/src/particle_particle_animated_quad_vbuf.vs.bin b/src/particle_particle_animated_quad_vbuf.vs.bin new file mode 100644 index 0000000000000000000000000000000000000000..450568fbb0be8258addc01b9f68623ff8aee7df7 GIT binary patch literal 176 zcmY++u?Ye}5QX9YtqZ1>Fnd^lB`kJeY$E1@B`j8QSczO_cpZpXz=oHI4vT>o{K5Aa zCgu&vCOw&y`nMLG5u;RI(&MA(&fIkI4X@emy8axfz)r(qufgwSD*~f$UbE57oY~G? 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