triangle_main.c

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#include <sbgl.h>
#include <stdio.h>
#include <time.h>
#include "triangle_vert.h"
#include "interactive_frag.h"
 
typedef struct {
    float mousePos[2];
    float time;
    float padding;
} PushData;
 
int main(void) {
    sbgl_InitResult res = sbgl_Init(800, 600, "SBgl Unified Triangle Example");
    if (res.error != SBGL_SUCCESS)
        return 1;
    sbgl_Context* ctx = res.ctx;
 
    sbgl_Shader vert =
        sbgl_LoadShader(ctx, SBGL_SHADER_STAGE_VERTEX, (const uint32_t*)triangle_vert_spv, triangle_vert_spv_len);
    sbgl_Shader frag =
        sbgl_LoadShader(ctx, SBGL_SHADER_STAGE_FRAGMENT, (const uint32_t*)interactive_frag_spv, interactive_frag_spv_len);
 
    sbgl_Vertex vertices[] = {
        { { 0, 16383, 0, 32767 }, 0xFF0000FF, 0 },      // 0: Top
        { { -16383, -16383, 0, 32767 }, 0xFFFF0000, 0 }, // 1: Bottom-Left
        { { 16383, -16383, 0, 32767 }, 0xFF00FF00, 0 }   // 2: Bottom-Right
    };
 
    sbgl_Buffer vbo = sbgl_CreateBuffer(ctx, SBGL_BUFFER_USAGE_VERTEX, sizeof(vertices), vertices);
 
    sbgl_VertexAttribute attributes[] = {
        { 0, offsetof(sbgl_Vertex, position), SBGL_FORMAT_R16G16B16A16_SNORM },
        { 1, offsetof(sbgl_Vertex, color), SBGL_FORMAT_R8G8B8A8_UNORM }
    };
 
    sbgl_PipelineConfig config = { .vertexShader = vert,
                                   .fragmentShader = frag,
                                   .vertexLayout = { sizeof(sbgl_Vertex), 2, attributes } };
 
    sbgl_Pipeline pipeline = sbgl_CreatePipeline(ctx, &config);
    double start_time = sbgl_GetTime(ctx);
 
    printf("--- Triangle Controls ---\n");
    printf("ESC: Exit\n");
    printf("-------------------------\n");
 
    while (!sbgl_WindowShouldClose(ctx)) {
        const sbgl_InputState* input = sbgl_GetInputState(ctx);
        if (input->keysDown[SBGL_KEY_ESCAPE]) break;
 
        sbgl_Clear(ctx, 0.05f, 0.05f, 0.05f, 1.0f);
        sbgl_BeginDrawing(ctx);
        
        int width, height;
        sbgl_GetWindowSize(ctx, &width, &height);
 
        PushData push = {
            .mousePos = { (float)input->mouseX / (float)width, (float)input->mouseY / (float)height },
            .time = (float)(sbgl_GetTime(ctx) - start_time)
        };
 
        sbgl_BindPipeline(ctx, pipeline);
        sbgl_PushConstants(ctx, sizeof(push), &push);
        sbgl_BindBuffer(ctx, vbo, SBGL_BUFFER_USAGE_VERTEX);
        sbgl_Draw(ctx, 3, 0, 1);
 
        sbgl_EndDrawing(ctx);
    }
 
    sbgl_DeviceWaitIdle(ctx);
 
    sbgl_DestroyPipeline(ctx, pipeline);
    sbgl_DestroyShader(ctx, vert);
    sbgl_DestroyShader(ctx, frag);
    sbgl_DestroyBuffer(ctx, vbo);
    sbgl_Shutdown(ctx);
 
    return 0;
}