void agp_draw_vobj(float x1, float y1, float x2, float y2,
float* txcos, float* model)
{
GLfloat verts[] = {
x1, y1,
x2, y1,
x2, y2,
x1, y2
};
bool settex = false;
agp_shader_envv(MODELVIEW_MATR, model?model:ident, sizeof(float) * 16);
/* projection, scissor is set when activating rendertarget */
GLint attrindv = agp_shader_vattribute_loc(ATTRIBUTE_VERTEX);
GLint attrindt = agp_shader_vattribute_loc(ATTRIBUTE_TEXCORD);
if (attrindv != -1){
glEnableVertexAttribArray(attrindv);
glVertexAttribPointer(attrindv, 2, GL_FLOAT, GL_FALSE, 0, verts);
if (txcos && attrindt != -1){
settex = true;
glEnableVertexAttribArray(attrindt);
glVertexAttribPointer(attrindt, 2, GL_FLOAT, GL_FALSE, 0, txcos);
}
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
if (settex)
glDisableVertexAttribArray(attrindt);
glDisableVertexAttribArray(attrindv);
}
}
void agp_submit_mesh(struct mesh_storage_t* base, enum agp_mesh_flags fl)
{
/* make sure the current program actually uses the attributes from the mesh */
int attribs[3] = {
agp_shader_vattribute_loc(ATTRIBUTE_VERTEX),
agp_shader_vattribute_loc(ATTRIBUTE_NORMAL),
agp_shader_vattribute_loc(ATTRIBUTE_TEXCORD)
};
if (attribs[0] == -1)
return;
else {
glEnableVertexAttribArray(attribs[0]);
glVertexAttribPointer(attribs[0], 3, GL_FLOAT, GL_FALSE, 0, base->verts);
}
if (attribs[1] != -1 && base->normals){
glEnableVertexAttribArray(attribs[1]);
glVertexAttribPointer(attribs[1], 3, GL_FLOAT, GL_FALSE,0, base->normals);
}
else
attribs[1] = -1;
if (attribs[2] != -1 && base->txcos){
glEnableVertexAttribArray(attribs[2]);
glVertexAttribPointer(attribs[2], 2, GL_FLOAT, GL_FALSE, 0, base->txcos);
}
else
attribs[2] = -1;
if (base->type == AGP_MESH_TRISOUP){
if (base->indices)
glDrawElements(GL_TRIANGLES, base->n_indices,
GL_UNSIGNED_INT, base->indices);
else
glDrawArrays(GL_TRIANGLES, 0, base->n_vertices);
}
else if (base->type == AGP_MESH_POINTCLOUD){
glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
glDrawArrays(GL_POINTS, 0, base->n_vertices);
glDisable(GL_VERTEX_PROGRAM_POINT_SIZE);
}
for (size_t i = 0; i < sizeof(attribs) / sizeof(attribs[0]); i++)
if (attribs[i] != -1)
glDisableVertexAttribArray(attribs[i]);
}
static void setup_transfer(struct mesh_storage_t* base, enum agp_mesh_flags fl)
{
struct agp_fenv* env = agp_env();
int attribs[3] = {
agp_shader_vattribute_loc(ATTRIBUTE_VERTEX),
agp_shader_vattribute_loc(ATTRIBUTE_NORMAL),
agp_shader_vattribute_loc(ATTRIBUTE_TEXCORD)
};
if (attribs[0] == -1)
return;
else {
env->enable_vertex_attrarray(attribs[0]);
env->vertex_attrpointer(attribs[0], 3, GL_FLOAT, GL_FALSE, 0, base->verts);
}
if (attribs[1] != -1 && base->normals){
env->enable_vertex_attrarray(attribs[1]);
env->vertex_attrpointer(attribs[1], 3, GL_FLOAT, GL_FALSE,0, base->normals);
}
else
attribs[1] = -1;
if (attribs[2] != -1 && base->txcos){
env->enable_vertex_attrarray(attribs[2]);
env->vertex_attrpointer(attribs[2], 2, GL_FLOAT, GL_FALSE, 0, base->txcos);
}
else
attribs[2] = -1;
if (base->type == AGP_MESH_TRISOUP){
if (base->indices)
env->draw_elements(GL_TRIANGLES, base->n_indices,
GL_UNSIGNED_INT, base->indices);
else
env->draw_arrays(GL_TRIANGLES, 0, base->n_vertices);
}
else if (base->type == AGP_MESH_POINTCLOUD){
env->enable(GL_VERTEX_PROGRAM_POINT_SIZE);
env->draw_arrays(GL_POINTS, 0, base->n_vertices);
env->disable(GL_VERTEX_PROGRAM_POINT_SIZE);
}
for (size_t i = 0; i < sizeof(attribs) / sizeof(attribs[0]); i++)
if (attribs[i] != -1)
env->disable_vertex_attrarray(attribs[i]);
}
void agp_draw_vobj(float x1, float y1, float x2, float y2,
const float* txcos, const float* model)
{
GLfloat verts[] = {
x1, y1,
x2, y1,
x2, y2,
x1, y2
};
bool settex = false;
struct agp_fenv* env = agp_env();
agp_shader_envv(MODELVIEW_MATR,
model ? (void*) model : ident, sizeof(float) * 16);
/* projection, scissor is set when activating rendertarget */
GLint attrindv = agp_shader_vattribute_loc(ATTRIBUTE_VERTEX);
GLint attrindt = agp_shader_vattribute_loc(ATTRIBUTE_TEXCORD);
if (attrindv != -1){
env->enable_vertex_attrarray(attrindv);
env->vertex_attrpointer(attrindv, 2, GL_FLOAT, GL_FALSE, 0, verts);
if (txcos && attrindt != -1){
settex = true;
env->enable_vertex_attrarray(attrindt);
env->vertex_attrpointer(attrindt, 2, GL_FLOAT, GL_FALSE, 0, txcos);
}
env->draw_arrays(GL_TRIANGLE_FAN, 0, 4);
if (settex)
env->disable_vertex_attrarray(attrindt);
env->disable_vertex_attrarray(attrindv);
}
}