105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
#include <kinc/graphics4/graphics.h>
|
|
#include <kinc/graphics4/indexbuffer.h>
|
|
#include <kinc/graphics4/pipeline.h>
|
|
#include <kinc/graphics4/shader.h>
|
|
#include <kinc/graphics4/vertexbuffer.h>
|
|
#include <kinc/io/filereader.h>
|
|
#include <kinc/system.h>
|
|
|
|
#include <assert.h>
|
|
#include <stdlib.h>
|
|
|
|
static kinc_g4_shader_t vertex_shader;
|
|
static kinc_g4_shader_t fragment_shader;
|
|
static kinc_g4_pipeline_t pipeline;
|
|
static kinc_g4_vertex_buffer_t vertices;
|
|
static kinc_g4_index_buffer_t indices;
|
|
|
|
#define HEAP_SIZE 1024 * 1024
|
|
static uint8_t *heap = NULL;
|
|
static size_t heap_top = 0;
|
|
|
|
static void *allocate(size_t size) {
|
|
size_t old_top = heap_top;
|
|
heap_top += size;
|
|
assert(heap_top <= HEAP_SIZE);
|
|
return &heap[old_top];
|
|
}
|
|
|
|
static void update(void *data) {
|
|
kinc_g4_begin(0);
|
|
kinc_g4_clear(KINC_G4_CLEAR_COLOR, 0, 0.0f, 0);
|
|
|
|
kinc_g4_set_pipeline(&pipeline);
|
|
kinc_g4_set_vertex_buffer(&vertices);
|
|
kinc_g4_set_index_buffer(&indices);
|
|
kinc_g4_draw_indexed_vertices();
|
|
|
|
kinc_g4_end(0);
|
|
kinc_g4_swap_buffers();
|
|
}
|
|
|
|
static void load_shader(const char *filename, kinc_g4_shader_t *shader, kinc_g4_shader_type_t shader_type) {
|
|
kinc_file_reader_t file;
|
|
kinc_file_reader_open(&file, filename, KINC_FILE_TYPE_ASSET);
|
|
size_t data_size = kinc_file_reader_size(&file);
|
|
uint8_t *data = allocate(data_size);
|
|
kinc_file_reader_read(&file, data, data_size);
|
|
kinc_file_reader_close(&file);
|
|
kinc_g4_shader_init(shader, data, data_size, shader_type);
|
|
}
|
|
|
|
int kickstart(int argc, char **argv) {
|
|
kinc_init("Shader", 1024, 768, NULL, NULL);
|
|
kinc_set_update_callback(update, NULL);
|
|
|
|
heap = (uint8_t *)malloc(HEAP_SIZE);
|
|
assert(heap != NULL);
|
|
|
|
load_shader("shader.vert", &vertex_shader, KINC_G4_SHADER_TYPE_VERTEX);
|
|
load_shader("shader.frag", &fragment_shader, KINC_G4_SHADER_TYPE_FRAGMENT);
|
|
|
|
kinc_g4_vertex_structure_t structure;
|
|
kinc_g4_vertex_structure_init(&structure);
|
|
kinc_g4_vertex_structure_add(&structure, "pos", KINC_G4_VERTEX_DATA_F32_3X);
|
|
kinc_g4_pipeline_init(&pipeline);
|
|
pipeline.vertex_shader = &vertex_shader;
|
|
pipeline.fragment_shader = &fragment_shader;
|
|
pipeline.input_layout[0] = &structure;
|
|
pipeline.input_layout[1] = NULL;
|
|
kinc_g4_pipeline_compile(&pipeline);
|
|
|
|
kinc_g4_vertex_buffer_init(&vertices, 3, &structure, KINC_G4_USAGE_STATIC, 0);
|
|
{
|
|
float *v = kinc_g4_vertex_buffer_lock_all(&vertices);
|
|
int i = 0;
|
|
|
|
v[i++] = -1;
|
|
v[i++] = -1;
|
|
v[i++] = 0.5;
|
|
|
|
v[i++] = 1;
|
|
v[i++] = -1;
|
|
v[i++] = 0.5;
|
|
|
|
v[i++] = -1;
|
|
v[i++] = 1;
|
|
v[i++] = 0.5;
|
|
|
|
kinc_g4_vertex_buffer_unlock_all(&vertices);
|
|
}
|
|
|
|
kinc_g4_index_buffer_init(&indices, 3, KINC_G4_INDEX_BUFFER_FORMAT_16BIT, KINC_G4_USAGE_STATIC);
|
|
{
|
|
uint16_t *i = (uint16_t *)kinc_g4_index_buffer_lock_all(&indices);
|
|
i[0] = 0;
|
|
i[1] = 1;
|
|
i[2] = 2;
|
|
kinc_g4_index_buffer_unlock_all(&indices);
|
|
}
|
|
|
|
kinc_start();
|
|
|
|
return 0;
|
|
}
|