int
main(int argc, char *argv[])
{
struct limare_state *state;
int ret;
const char *vertex_shader_source =
"attribute vec4 aPosition; \n"
" \n"
"void main() \n"
"{ \n"
" gl_Position = aPosition; \n"
"} \n";
const char *fragment_shader_source =
"precision mediump float; \n"
" \n"
"uniform vec4 uColor; \n"
" \n"
"void main() \n"
"{ \n"
" gl_FragColor = uColor; \n"
"} \n";
float vertices[] = {-0.45, -0.75, 0.0,
0.45, -0.75, 0.0,
-0.45, 0.75, 0.0,
0.45, 0.75, 0.0};
float color[] = {1.0, 0.0, 0.0, 1.0};
state = limare_init();
if (!state)
return -1;
limare_buffer_clear(state);
ret = limare_state_setup(state, 0, 0, 0xFF505050);
if (ret)
return ret;
int program = limare_program_new(state);
vertex_shader_attach(state, program, vertex_shader_source);
fragment_shader_attach(state, program, fragment_shader_source);
limare_link(state);
limare_attribute_pointer(state, "aPosition", LIMARE_ATTRIB_FLOAT,
3, 0, 4, vertices);
limare_uniform_attach(state, "uColor", 4, color);
limare_frame_new(state);
ret = limare_draw_arrays(state, GL_TRIANGLE_STRIP, 0, 4);
if (ret)
return ret;
ret = limare_frame_flush(state);
if (ret)
return ret;
limare_buffer_swap(state);
limare_finish(state);
return 0;
}
int
main(int argc, char *argv[])
{
struct limare_state *state;
int ret;
const char *vertex_shader_source =
"uniform mat4 modelviewMatrix;\n"
"uniform mat4 modelviewprojectionMatrix;\n"
"uniform mat3 normalMatrix;\n"
"\n"
"attribute vec4 in_position; \n"
"attribute vec3 in_normal; \n"
"attribute vec2 in_coord; \n"
"\n"
"vec4 lightSource = vec4(10.0, 20.0, 40.0, 0.0);\n"
" \n"
"varying vec4 vVaryingColor; \n"
"varying vec2 coord; \n"
" \n"
"void main() \n"
"{ \n"
" gl_Position = modelviewprojectionMatrix * in_position;\n"
" vec3 vEyeNormal = normalMatrix * in_normal;\n"
" vec4 vPosition4 = modelviewMatrix * in_position;\n"
" vec3 vPosition3 = vPosition4.xyz / vPosition4.w;\n"
" vec3 vLightDir = normalize(lightSource.xyz - vPosition3);\n"
" float diff = max(0.0, dot(vEyeNormal, vLightDir));\n"
" vVaryingColor = vec4(diff * vec3(1.0, 1.0, 1.0), 1.0);\n"
" coord = in_coord; \n"
"} \n";
const char *fragment_shader_source =
"precision mediump float; \n"
" \n"
"varying vec4 vVaryingColor; \n"
"varying vec2 coord; \n"
" \n"
"uniform sampler2D in_texture; \n"
" \n"
"void main() \n"
"{ \n"
" gl_FragColor = vVaryingColor * texture2D(in_texture, coord);\n"
"} \n";
float *vertices_array = companion_vertices_array();
float *texture_coordinates_array =
companion_texture_coordinates_array();
float *normals_array = companion_normals_array();
state = limare_init();
if (!state)
return -1;
limare_buffer_clear(state);
ret = limare_state_setup(state, 0, 0, 0xFF505050);
if (ret)
return ret;
int width, height;
limare_buffer_size(state, &width, &height);
float aspect = (float) height / width;
limare_enable(state, GL_DEPTH_TEST);
limare_enable(state, GL_CULL_FACE);
limare_depth_mask(state, 1);
int program = limare_program_new(state);
vertex_shader_attach(state, program, vertex_shader_source);
fragment_shader_attach(state, program, fragment_shader_source);
limare_link(state);
int vertices_buffer =
limare_attribute_buffer_upload(state, LIMARE_ATTRIB_FLOAT,
3, 0, COMPANION_ARRAY_COUNT,
vertices_array);
int texture_coordinates_buffer =
limare_attribute_buffer_upload(state, LIMARE_ATTRIB_FLOAT,
2, 0, COMPANION_ARRAY_COUNT,
texture_coordinates_array);
int normals_buffer =
limare_attribute_buffer_upload(state, LIMARE_ATTRIB_FLOAT,
3, 0, COMPANION_ARRAY_COUNT,
normals_array);
limare_attribute_buffer_attach(state, "in_position", vertices_buffer);
limare_attribute_buffer_attach(state, "in_coord",
texture_coordinates_buffer);
limare_attribute_buffer_attach(state, "in_normal", normals_buffer);
int texture = limare_texture_upload(state, companion_texture,
COMPANION_TEXTURE_WIDTH,
COMPANION_TEXTURE_HEIGHT,
COMPANION_TEXTURE_FORMAT, 0);
limare_texture_attach(state, "in_texture", texture);
ESMatrix modelview;
esMatrixLoadIdentity(&modelview);
esTranslate(&modelview, 0.0, 0.0, -4.0);
esRotate(&modelview, -30.0, 1.0, 0.0, 0.0);
esRotate(&modelview, -45.0, 0.0, 1.0, 0.0);
ESMatrix projection;
esMatrixLoadIdentity(&projection);
esFrustum(&projection, -1.0, +1.0, -1.0 * aspect, +1.0 * aspect,
1.0, 10.0);
ESMatrix modelviewprojection;
esMatrixLoadIdentity(&modelviewprojection);
esMatrixMultiply(&modelviewprojection, &modelview, &projection);
float normal[9];
normal[0] = modelview.m[0][0];
normal[1] = modelview.m[0][1];
normal[2] = modelview.m[0][2];
normal[3] = modelview.m[1][0];
normal[4] = modelview.m[1][1];
normal[5] = modelview.m[1][2];
normal[6] = modelview.m[2][0];
normal[7] = modelview.m[2][1];
normal[8] = modelview.m[2][2];
limare_uniform_attach(state, "modelviewMatrix", 16,
&modelview.m[0][0]);
limare_uniform_attach(state, "modelviewprojectionMatrix", 16,
&modelviewprojection.m[0][0]);
limare_uniform_attach(state, "normalMatrix", 9, normal);
limare_frame_new(state);
ret = limare_draw_arrays(state, GL_TRIANGLES, 0, COMPANION_ARRAY_COUNT);
if (ret)
return ret;
ret = limare_frame_flush(state);
if (ret)
return ret;
limare_buffer_swap(state);
limare_finish(state);
return 0;
}
int
main(int argc, char *argv[])
{
struct limare_state *state;
int ret;
float vertices[] = { -0.45, -0.75, 0.0,
0.45, -0.75, 0.0,
-0.45, 0.75, 0.0,
0.45, 0.75, 0.0 };
float color[] = {1.0, 0.0, 0.0, 1.0 };
const char *vertex_shader_source =
"precision mediump float; \n"
"attribute vec4 aPosition; \n"
" \n"
"void main() \n"
"{ \n"
" gl_Position = aPosition; \n"
"} \n";
const char *fragment_shader_source =
"precision mediump float; \n"
"uniform vec4 uColor; \n"
" \n"
"void main() \n"
"{ \n"
" gl_FragColor = uColor; \n"
"} \n";
fb_clear();
state = limare_init();
if (!state)
return -1;
ret = limare_state_setup(state, WIDTH, HEIGHT, 0xFF505050);
if (ret)
return ret;
vertex_shader_attach(state, vertex_shader_source);
fragment_shader_attach(state, fragment_shader_source);
limare_link(state);
limare_attribute_pointer(state, "aPosition", 4, 3, vertices);
limare_uniform_attach(state, "uColor", 4, 4, color);
ret = limare_draw_arrays(state, GL_TRIANGLE_STRIP, 0, 4);
if (ret)
return ret;
ret = limare_flush(state);
if (ret)
return ret;
bmp_dump(state->pp->frame_address, state, "/sdcard/limare.bmp");
fb_dump(state->pp->frame_address, 0, state->width, state->height);
limare_finish();
return 0;
}