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Merge pull request #140 from floooh/storage-buffers
Storage buffer update.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| //------------------------------------------------------------------------------ | ||
| // vertexpulling-d3d11.c | ||
| // | ||
| // Demonstrates vertex pulling from storage buffers. | ||
| //------------------------------------------------------------------------------ | ||
| #include "d3d11entry.h" | ||
| #define SOKOL_IMPL | ||
| #define SOKOL_D3D11 | ||
| #include "sokol_gfx.h" | ||
| #include "sokol_log.h" | ||
| #define HANDMADE_MATH_IMPLEMENTATION | ||
| #define HANDMADE_MATH_NO_SSE | ||
| #include "HandmadeMath.h" | ||
|
|
||
| typedef struct { | ||
| float pos[4]; | ||
| float color[4]; | ||
| } vertex_t; | ||
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|
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| typedef struct { | ||
| hmm_mat4 mvp; | ||
| } vs_params_t; | ||
|
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| int WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nCmdShow) { | ||
| (void)hInstance; (void)hPrevInstance; (void)lpCmdLine; (void)nCmdShow; | ||
|
|
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| d3d11_init(&(d3d11_desc_t){ .width = 640, .height = 480, .sample_count = 4, .title = L"vertexpulling-d3d11.c" }); | ||
| sg_setup(&(sg_desc){ | ||
| .environment = d3d11_environment(), | ||
| .logger.func = slog_func, | ||
| }); | ||
|
|
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| const sg_pass_action pass_action = { | ||
| .colors[0] = { .load_action = SG_LOADACTION_CLEAR, .clear_value = { 0.5f, 0.5f, 1.0f, 1.0f } }, | ||
| }; | ||
|
|
||
| const vertex_t vertices[] = { | ||
| { .pos = { -1.0, -1.0, -1.0, 1.0 }, .color = { 1.0, 0.0, 0.0, 1.0 } }, | ||
| { .pos = { 1.0, -1.0, -1.0, 1.0 }, .color = { 1.0, 0.0, 0.0, 1.0 } }, | ||
| { .pos = { 1.0, 1.0, -1.0, 1.0 }, .color = { 1.0, 0.0, 0.0, 1.0 } }, | ||
| { .pos = { -1.0, 1.0, -1.0, 1.0 }, .color = { 1.0, 0.0, 0.0, 1.0 } }, | ||
|
|
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| { .pos = { -1.0, -1.0, 1.0, 1.0 }, .color = { 0.0, 1.0, 0.0, 1.0 } }, | ||
| { .pos = { 1.0, -1.0, 1.0, 1.0 }, .color = { 0.0, 1.0, 0.0, 1.0 } }, | ||
| { .pos = { 1.0, 1.0, 1.0, 1.0 }, .color = { 0.0, 1.0, 0.0, 1.0 } }, | ||
| { .pos = { -1.0, 1.0, 1.0, 1.0 }, .color = { 0.0, 1.0, 0.0, 1.0 } }, | ||
|
|
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| { .pos = { -1.0, -1.0, -1.0, 1.0 }, .color = { 0.0, 0.0, 1.0, 1.0 } }, | ||
| { .pos = { -1.0, 1.0, -1.0, 1.0 }, .color = { 0.0, 0.0, 1.0, 1.0 } }, | ||
| { .pos = { -1.0, 1.0, 1.0, 1.0 }, .color = { 0.0, 0.0, 1.0, 1.0 } }, | ||
| { .pos = { -1.0, -1.0, 1.0, 1.0 }, .color = { 0.0, 0.0, 1.0, 1.0 } }, | ||
|
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| { .pos = { 1.0, -1.0, -1.0, 1.0 }, .color = {1.0, 0.5, 0.0, 1.0, } }, | ||
| { .pos = { 1.0, 1.0, -1.0, 1.0 }, .color = {1.0, 0.5, 0.0, 1.0, } }, | ||
| { .pos = { 1.0, 1.0, 1.0, 1.0 }, .color = {1.0, 0.5, 0.0, 1.0, } }, | ||
| { .pos = { 1.0, -1.0, 1.0, 1.0 }, .color = {1.0, 0.5, 0.0, 1.0, } }, | ||
|
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||
| { .pos = { -1.0, -1.0, -1.0, 1.0 }, .color = { 0.0, 0.5, 1.0, 1.0 } }, | ||
| { .pos = { -1.0, -1.0, 1.0, 1.0 }, .color = { 0.0, 0.5, 1.0, 1.0 } }, | ||
| { .pos = { 1.0, -1.0, 1.0, 1.0 }, .color = { 0.0, 0.5, 1.0, 1.0 } }, | ||
| { .pos = { 1.0, -1.0, -1.0, 1.0 }, .color = { 0.0, 0.5, 1.0, 1.0 } }, | ||
|
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| { .pos = { -1.0, 1.0, -1.0, 1.0 }, .color = { 1.0, 0.0, 0.5, 1.0 } }, | ||
| { .pos = { -1.0, 1.0, 1.0, 1.0 }, .color = { 1.0, 0.0, 0.5, 1.0 } }, | ||
| { .pos = { 1.0, 1.0, 1.0, 1.0 }, .color = { 1.0, 0.0, 0.5, 1.0 } }, | ||
| { .pos = { 1.0, 1.0, -1.0, 1.0 }, .color = { 1.0, 0.0, 0.5, 1.0 } } | ||
| }; | ||
| sg_buffer sbuf = sg_make_buffer(&(sg_buffer_desc){ | ||
| .type = SG_BUFFERTYPE_STORAGEBUFFER, | ||
| .data = SG_RANGE(vertices), | ||
| }); | ||
|
|
||
| uint16_t indices[] = { | ||
| 0, 1, 2, 0, 2, 3, | ||
| 6, 5, 4, 7, 6, 4, | ||
| 8, 9, 10, 8, 10, 11, | ||
| 14, 13, 12, 15, 14, 12, | ||
| 16, 17, 18, 16, 18, 19, | ||
| 22, 21, 20, 23, 22, 20 | ||
| }; | ||
| sg_buffer ibuf = sg_make_buffer(&(sg_buffer_desc){ | ||
| .type = SG_BUFFERTYPE_INDEXBUFFER, | ||
| .data = SG_RANGE(indices) | ||
| }); | ||
|
|
||
| sg_shader shd = sg_make_shader(&(sg_shader_desc){ | ||
| .vs.uniform_blocks[0].size = sizeof(vs_params_t), | ||
| .vs.storage_buffers[0] = { .used = true, .readonly = true }, | ||
| .vs.source = | ||
| "cbuffer params: register(b0) {\n" | ||
| " float4x4 mvp;\n" | ||
| "};\n" | ||
| "ByteAddressBuffer vertices: register(t16);\n" | ||
| "struct vs_out {\n" | ||
| " float4 color: COLOR0;\n" | ||
| " float4 pos: SV_Position;\n" | ||
| "};\n" | ||
| "vs_out main(uint vidx: SV_VertexID) {\n" | ||
| " vs_out outp;\n" | ||
| " float4 pos = asfloat(vertices.Load4(vidx * 32 + 0));\n" | ||
| " float4 color = asfloat(vertices.Load4(vidx * 32 + 16));\n" | ||
| " outp.pos = mul(mvp, pos);\n" | ||
| " outp.color = color;\n" | ||
| " return outp;\n" | ||
| "};\n", | ||
| .fs.source = | ||
| "float4 main(float4 color: COLOR0): SV_Target0 {\n" | ||
| " return color;\n" | ||
| "}\n" | ||
| }); | ||
|
|
||
| sg_pipeline pip = sg_make_pipeline(&(sg_pipeline_desc){ | ||
| .shader = shd, | ||
| .index_type = SG_INDEXTYPE_UINT16, | ||
| .depth = { | ||
| .compare = SG_COMPAREFUNC_LESS_EQUAL, | ||
| .write_enabled = true | ||
| }, | ||
| .cull_mode = SG_CULLMODE_BACK, | ||
| }); | ||
|
|
||
| sg_bindings bind = { | ||
| .index_buffer = ibuf, | ||
| .vs.storage_buffers[0] = sbuf, | ||
| }; | ||
|
|
||
| float rx = 0.0f, ry = 0.0f; | ||
| while (d3d11_process_events()) { | ||
| // view-projection matrix | ||
| const hmm_mat4 proj = HMM_Perspective(60.0f, (float)d3d11_width()/(float)d3d11_height(), 0.01f, 10.0f); | ||
| const hmm_mat4 view = HMM_LookAt(HMM_Vec3(0.0f, 1.5f, 6.0f), HMM_Vec3(0.0f, 0.0f, 0.0f), HMM_Vec3(0.0f, 1.0f, 0.0f)); | ||
| const hmm_mat4 view_proj = HMM_MultiplyMat4(proj, view); | ||
| // model-view-proj matrix for vertex shader | ||
| vs_params_t vs_params; | ||
| rx += 1.0f; ry += 2.0f; | ||
| const hmm_mat4 rxm = HMM_Rotate(rx, HMM_Vec3(1.0f, 0.0f, 0.0f)); | ||
| const hmm_mat4 rym = HMM_Rotate(ry, HMM_Vec3(0.0f, 1.0f, 0.0f)); | ||
| const hmm_mat4 model = HMM_MultiplyMat4(rxm, rym); | ||
| vs_params.mvp = HMM_MultiplyMat4(view_proj, model); | ||
|
|
||
| sg_begin_pass(&(sg_pass){ .action = pass_action, .swapchain = d3d11_swapchain() }); | ||
| sg_apply_pipeline(pip); | ||
| sg_apply_bindings(&bind); | ||
| sg_apply_uniforms(SG_SHADERSTAGE_VS, 0, &SG_RANGE(vs_params)); | ||
| sg_draw(0, 36, 1); | ||
| sg_end_pass(); | ||
| sg_commit(); | ||
| d3d11_present(); | ||
| } | ||
| sg_shutdown(); | ||
| d3d11_shutdown(); | ||
| return 0; | ||
| } |
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