void gluLookAt(
GLfloat eyex,
GLfloat eyey,
GLfloat eyez,
GLfloat centerx,
GLfloat centery,
GLfloat centerz,
GLfloat upx,
GLfloat upy,
GLfloat upz)
{
//ref: http://www.manpagez.com/man/3/gluLookAt/
//ref: http://www.opengl.org/wiki/GluLookAt_code
float matrix[16],
eyePosition3D[3] = {eyex, eyey, eyez },
center3D[3] = {centerx, centery, centerz },
upVector3D[3] = {upx, upy, upz };
#ifdef BUILD_USE_GLHLIB
glhLoadIdentityf2(matrix);
glhLookAtf2(matrix, eyePosition3D, center3D, upVector3D);
glMultMatrixf(matrix);
#else
glhLookAtf2(matrix, eyePosition3D, center3D, upVector3D);
#endif
}
RENDERING_SERVICE_API int rs_render_simple_obj(const SimpleStaticObject* obj, const SimpleTransform* xform)
{
if (!IsValidStaticObject(obj) || !xform)
{
return -1;
}
CLSALIGN16 float m[16], rot44[16];
CLSALIGN16 float xyzw[4] = { xform->x, xform->y, xform->z, 1.0f };
CLSALIGN16 float scale[4] = { 3.0f, 3.0f, 5.0f/2, 1.0f };
CLSALIGN16 float zaxis[4] = { 0.0f, 0.0f, 1.0f, 0.0f };
glhLoadIdentityf2(m);
glhTranslatef2_SSE_Aligned(m, xyzw);
glhScalef2_SSE_Aligned(m, scale);
//glhMultMatrixf2_SSE_Aligned(m, rot44);
glhRotatef2_SSE_Aligned(m, (float)M_PI, zaxis);
float uvx[9];
glhLoadIdentity3f2(uvx);
glUniformMatrix3fv(xform->uniUvx, 1, GL_FALSE, (GLfloat*)uvx);
//SetUniMvp(m, v, p);
glBindTexture(GL_TEXTURE_2D, obj->texId);
glBindVertexArray(obj->vb.varray);
glDrawArrays(GL_TRIANGLES, 0, obj->vb.len);
glBindVertexArray(0);
return 0;
}
// Called by Rocket when it wants to render geometry that it does not wish to optimise.
void ShellRenderInterfaceOpenGL::RenderGeometry(Rocket::Core::Vertex* vertices, int num_vertices, int* indices, int num_indices, const Rocket::Core::TextureHandle texture, const Rocket::Core::Vector2f& translation)
{
//glPushMatrix();
//glTranslatef(translation.x, translation.y, 0);
CLSALIGN16 float mat[16];
CLSALIGN16 float xyzw[] = { translation.x, translation.y, 0, 1 };
glhLoadIdentityf2(mat);
glhTranslatef2_SSE_Aligned(mat, xyzw);
rs_set_rocket_model_matrix(mat);
Draw2DElementsParam param;
param.num_vertices = num_vertices;
param.vertex = &vertices[0].position;
param.color = &vertices[0].colour;
param.texCoord = &vertices[0].tex_coord;
param.stride = sizeof(Rocket::Core::Vertex);
param.texture = texture;
param.num_indices = num_indices;
param.indices = indices;
rs_draw_2d_elements(¶m);
//glVertexPointer(2, GL_FLOAT, sizeof(Rocket::Core::Vertex), &vertices[0].position);
//glEnableClientState(GL_COLOR_ARRAY);
//glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(Rocket::Core::Vertex), &vertices[0].colour);
//if (!texture)
//{
// glDisable(GL_TEXTURE_2D);
// glDisableClientState(GL_TEXTURE_COORD_ARRAY);
//}
//else
//{
// glEnable(GL_TEXTURE_2D);
// glBindTexture(GL_TEXTURE_2D, (GLuint) texture);
// glEnableClientState(GL_TEXTURE_COORD_ARRAY);
// glTexCoordPointer(2, GL_FLOAT, sizeof(Rocket::Core::Vertex), &vertices[0].tex_coord);
//}
//glDrawElements(GL_TRIANGLES, num_indices, GL_UNSIGNED_INT, indices);
//glPopMatrix();
}
