void
FramebufferCompositorImpl::render_lightmap(SceneContext& /*sc*/, SceneGraph* /*sg*/)
{
OpenGLState state;
state.bind_texture(m_lightmap->get_texture());
state.enable(GL_BLEND);
state.set_blend_func(GL_DST_COLOR, GL_ZERO); // multiply the lightmap with the screen
state.activate();
glBegin(GL_QUADS);
{
glTexCoord2i(0, 1);
glVertex2i(0, 0);
glTexCoord2i(1, 1);
glVertex2i(m_viewport.width, 0);
glTexCoord2i(1, 0);
glVertex2i(m_viewport.width, m_viewport.height);
glTexCoord2i(0, 0);
glVertex2i(0, m_viewport.height);
}
glEnd();
}
void draw_particles()
{
glPushMatrix();
glMultMatrixf(get_modelview().matrix);
OpenGLState state;
state.bind_texture(surface->get_texture());
state.set_blend_func(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
state.enable(GL_BLEND);
state.activate();
glBegin(GL_QUADS);
for(ParticleSystem::Particles::iterator i = psys.begin(); i != psys.end(); ++i)
{
if (i->t != -1.0f)
{
float p = 1.0f - psys.get_progress(i->t);
Color color(psys.get_color_start().r * p + psys.get_color_stop().r * (1.0f - p),
psys.get_color_start().g * p + psys.get_color_stop().g * (1.0f - p),
psys.get_color_start().b * p + psys.get_color_stop().b * (1.0f - p),
psys.get_color_start().a * p + psys.get_color_stop().a * (1.0f - p));
// scale
float scale = psys.get_size_start() +
psys.get_progress(i->t) * (psys.get_size_stop() - psys.get_size_start());
float width = surface->get_width() * scale;
float height = surface->get_height() * scale;
// rotate
float x_rot = width/2;
float y_rot = height/2;
if (i->angle != 0)
{
float s = sinf(math::pi * i->angle/180.0f);
float c = cosf(math::pi * i->angle/180.0f);
x_rot = (width/2) * c - (height/2) * s;
y_rot = (width/2) * s + (height/2) * c;
}
glColor4f(color.r, color.g, color.b, color.a);
glTexCoord2f(0, 0);
glVertex2f(i->x - x_rot, i->y - y_rot);
glTexCoord2f(1, 0);
glVertex2f(i->x + y_rot, i->y - x_rot);
glTexCoord2f(1, 1);
glVertex2f(i->x + x_rot, i->y + y_rot);
glTexCoord2f(0, 1);
glVertex2f(i->x - y_rot, i->y + x_rot);
}
}
glEnd();
glPopMatrix();
}
void RasterizerCacheOpenGL::LoadAndBindTexture(OpenGLState &state, unsigned texture_unit, const Pica::Regs::FullTextureConfig& config) {
PAddr texture_addr = config.config.GetPhysicalAddress();
const auto cached_texture = texture_cache.find(texture_addr);
if (cached_texture != texture_cache.end()) {
state.texture_units[texture_unit].texture_2d = cached_texture->second->texture.handle;
state.Apply();
} else {
std::unique_ptr<CachedTexture> new_texture = Common::make_unique<CachedTexture>();
new_texture->texture.Create();
state.texture_units[texture_unit].texture_2d = new_texture->texture.handle;
state.Apply();
// TODO: Need to choose filters that correspond to PICA once register is declared
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, PicaToGL::WrapMode(config.config.wrap_s));
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, PicaToGL::WrapMode(config.config.wrap_t));
const auto info = Pica::DebugUtils::TextureInfo::FromPicaRegister(config.config, config.format);
new_texture->width = info.width;
new_texture->height = info.height;
new_texture->size = info.width * info.height * Pica::Regs::NibblesPerPixel(info.format);
u8* texture_src_data = Memory::GetPhysicalPointer(texture_addr);
std::unique_ptr<Math::Vec4<u8>[]> temp_texture_buffer_rgba(new Math::Vec4<u8>[info.width * info.height]);
for (int y = 0; y < info.height; ++y) {
for (int x = 0; x < info.width; ++x) {
temp_texture_buffer_rgba[x + info.width * y] = Pica::DebugUtils::LookupTexture(texture_src_data, x, info.height - 1 - y, info);
}
}
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, info.width, info.height, 0, GL_RGBA, GL_UNSIGNED_BYTE, temp_texture_buffer_rgba.get());
texture_cache.emplace(texture_addr, std::move(new_texture));
}
}
void prepare(TexturePtr screen_texture)
{
OpenGLState state;
state.bind_texture(screen_texture);
state.activate();
glBegin(GL_QUADS);
glTexCoord2f(0,600);
glVertex2f(0,0);
glTexCoord2f(800,600);
glVertex2f(800,0);
glTexCoord2f(800, 0);
glVertex2f(800, 600);
glTexCoord2f(0, 0);
glVertex2f(0,600);
glEnd();
}
void render(unsigned int mask)
{
#if 0
Display::push_framebuffer(framebuffer);
glClear(GL_COLOR_BUFFER_BIT);
draw_particles();
Display::pop_framebuffer();
if (1) {
OpenGLState state;
glUseProgram(shader_program.get_handle());
shader_program.set_uniform1i("screen", 0);
shader_program.set_uniform1i("particles", 1);
state.bind_texture(tmp_texture, 0);
state.bind_texture(framebuffer.get_texture(), 1);
state.color(Color(1.0f, 1.0f, 1.0f, 1.0f));
state.activate();
glBegin(GL_QUADS);
glTexCoord2f(0,0);
glVertex2f(0,0);
glTexCoord2f(800,0);
glVertex2f(800,0);
glTexCoord2f(800,600);
glVertex2f(800, 600);
glTexCoord2f(0, 600);
glVertex2f(0,600);
glEnd();
glUseProgram(0);
}
#endif
}
void RasterizerCacheOpenGL::LoadAndBindTexture(OpenGLState &state, unsigned texture_unit, const Pica::DebugUtils::TextureInfo& info) {
const auto cached_texture = texture_cache.find(info.physical_address);
if (cached_texture != texture_cache.end()) {
state.texture_units[texture_unit].texture_2d = cached_texture->second->texture.handle;
state.Apply();
} else {
MICROPROFILE_SCOPE(OpenGL_TextureUpload);
std::unique_ptr<CachedTexture> new_texture = Common::make_unique<CachedTexture>();
new_texture->texture.Create();
state.texture_units[texture_unit].texture_2d = new_texture->texture.handle;
state.Apply();
glActiveTexture(GL_TEXTURE0 + texture_unit);
u8* texture_src_data = Memory::GetPhysicalPointer(info.physical_address);
new_texture->width = info.width;
new_texture->height = info.height;
new_texture->size = info.stride * info.height;
new_texture->addr = info.physical_address;
new_texture->hash = Common::ComputeHash64(texture_src_data, new_texture->size);
std::unique_ptr<Math::Vec4<u8>[]> temp_texture_buffer_rgba(new Math::Vec4<u8>[info.width * info.height]);
for (int y = 0; y < info.height; ++y) {
for (int x = 0; x < info.width; ++x) {
temp_texture_buffer_rgba[x + info.width * y] = Pica::DebugUtils::LookupTexture(texture_src_data, x, info.height - 1 - y, info);
}
}
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, info.width, info.height, 0, GL_RGBA, GL_UNSIGNED_BYTE, temp_texture_buffer_rgba.get());
texture_cache.emplace(info.physical_address, std::move(new_texture));
}
}
void
BasicCompositorImpl::render(SceneContext& sc, SceneGraph* sg, const GraphicContextState& gc_state)
{
// Resize Lightmap, only needed in the editor, FIXME: move this into a 'set_size()' call
if (m_lightmap->get_width() != m_window.width /LIGHTMAP_DIV ||
m_lightmap->get_height() != m_window.height/LIGHTMAP_DIV)
{
m_lightmap = Surface::create(m_window.width / LIGHTMAP_DIV, m_window.height / LIGHTMAP_DIV);
}
if (sc.get_render_mask() & SceneContext::LIGHTMAPSCREEN)
{
// Render the lightmap to the framebuffers->lightmap
glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glScalef(1.0f / LIGHTMAP_DIV, 1.0f / LIGHTMAP_DIV, 1.0f);
sc.light().render();
glPopMatrix();
if (sg)
{
glPushMatrix();
glScalef(1.0f / LIGHTMAP_DIV, 1.0f / LIGHTMAP_DIV, 1.0f);
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::LIGHTMAP);
glPopMatrix();
}
{ // Copy lightmap to a texture
OpenGLState state;
state.bind_texture(m_lightmap->get_texture());
state.activate();
glCopyTexSubImage2D(GL_TEXTURE_2D,
0, // mipmap level
0, 0, // xoffset, yoffset
0, // x
m_window.height - static_cast<GLsizei>(m_lightmap->get_height()), // y (OpenGL is upside down)
static_cast<GLsizei>(m_lightmap->get_width()),
static_cast<GLsizei>(m_lightmap->get_height()));
}
}
if (sc.get_render_mask() & SceneContext::COLORMAP)
{
// Render the colormap to the framebuffers->screen
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
sc.color().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::COLORMAP);
glPopMatrix();
}
}
if (sc.get_render_mask() & SceneContext::LIGHTMAP)
{ // Renders the lightmap to the screen
OpenGLState state;
state.bind_texture(m_lightmap->get_texture());
state.enable(GL_BLEND);
state.set_blend_func(GL_DST_COLOR, GL_ZERO);
state.activate();
glBegin(GL_QUADS);
glTexCoord2f(m_lightmap->get_uv().left, m_lightmap->get_uv().bottom);
glVertex2i(0, 0);
glTexCoord2f(m_lightmap->get_uv().right, m_lightmap->get_uv().bottom);
glVertex2i(m_viewport.width, 0);
glTexCoord2f(m_lightmap->get_uv().right, m_lightmap->get_uv().top);
glVertex2i(m_viewport.width, m_viewport.height);
glTexCoord2f(m_lightmap->get_uv().left, m_lightmap->get_uv().top);
glVertex2i(0, m_viewport.height);
glEnd();
}
if (sc.get_render_mask() & SceneContext::HIGHLIGHTMAP)
{
sc.highlight().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::HIGHLIGHTMAP);
glPopMatrix();
}
}
if (sc.get_render_mask() & SceneContext::CONTROLMAP)
{
sc.control().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::CONTROLMAP);
glPopMatrix();
}
}
// Clear all DrawingContexts
sc.color().clear();
sc.light().clear();
sc.highlight().clear();
sc.control().clear();
}
void
FramebufferCompositorImpl::render(SceneContext& sc, SceneGraph* sg, const GraphicContextState& gc_state)
{
if (sc.get_render_mask() & SceneContext::LIGHTMAPSCREEN)
{
// Render the lightmap to framebuffers->lightmap
Display::push_framebuffer(m_lightmap);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef(0.0f, static_cast<float>(m_viewport.height - (m_viewport.height / LIGHTMAP_DIV)), 0.0f);
glScalef(1.0f / LIGHTMAP_DIV, 1.0f / LIGHTMAP_DIV, 1.0f / LIGHTMAP_DIV);
sc.light().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::LIGHTMAP);
glPopMatrix();
}
glPopMatrix();
Display::pop_framebuffer();
}
{ // Render the main screen
Display::push_framebuffer(m_screen);
if (sc.get_render_mask() & SceneContext::COLORMAP)
{
// Render the colormap to framebuffers->screen
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
sc.color().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::COLORMAP);
glPopMatrix();
}
}
if (sc.get_render_mask() & SceneContext::LIGHTMAP)
{ // Renders the lightmap to the screen
render_lightmap(sc, sg);
}
if (sc.get_render_mask() & SceneContext::HIGHLIGHTMAP)
{
sc.highlight().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::HIGHLIGHTMAP);
glPopMatrix();
}
}
if (sc.get_render_mask() & SceneContext::CONTROLMAP)
{
sc.control().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::CONTROLMAP);
glPopMatrix();
}
}
Display::pop_framebuffer();
}
if (1)
{
// Render the screen framebuffer to the actual screen
OpenGLState state;
state.bind_texture(m_screen->get_texture(), 0);
state.activate();
glBegin(GL_QUADS);
{
glTexCoord2i(0, 1);
glVertex2i(0, 0);
glTexCoord2i(1, 1);
glVertex2i(m_viewport.width, 0);
glTexCoord2i(1, 0);
glVertex2i(m_viewport.width, m_viewport.height);
glTexCoord2i(0, 0);
glVertex2i(0.0f, m_viewport.height);
}
glEnd();
}
// Clear all DrawingContexts
sc.color().clear();
sc.light().clear();
sc.highlight().clear();
sc.control().clear();
}
void
VertexArrayDrawingRequest::draw(int start, int end)
{
assert(!vertices.empty());
assert(texcoords.empty() || int(texcoords.size()/2) == num_vertices());
assert(colors.empty() || int(colors.size()/4) == num_vertices());
OpenGLState state;
glClear(GL_DEPTH_BUFFER_BIT);
state.disable(GL_DEPTH_TEST);
state.enable(GL_BLEND);
state.set_blend_func(blend_sfactor, blend_dfactor);
if (texture)
{
state.bind_texture(texture);
}
if (!colors.empty())
{
state.enable_client_state(GL_COLOR_ARRAY);
glColorPointer(4, GL_UNSIGNED_BYTE, 0, &*colors.begin());
}
else
{
state.disable_client_state(GL_COLOR_ARRAY);
state.color(Color(1.0f, 1.0f, 1.0f));
}
if (!texcoords.empty())
{
state.enable_client_state(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, 0, &*texcoords.begin());
}
else
{
state.disable_client_state(GL_TEXTURE_COORD_ARRAY);
}
// FIXME: Might be worth to not use VertexArrays when we have a pretty small number of vertices
state.disable_client_state(GL_NORMAL_ARRAY);
state.enable_client_state(GL_VERTEX_ARRAY);
glVertexPointer (3, GL_FLOAT, 0, &*vertices.begin());
state.activate();
glPushMatrix();
glMultMatrixf(modelview.matrix);
glDrawArrays(mode, start, end);
glPopMatrix();
}
/*
* Render all states in the ShaderCache along with their renderables. This
* is where the actual OpenGL rendering starts.
*/
void OpenGLRenderSystem::render(RenderStateFlags globalstate,
const Matrix4& modelview,
const Matrix4& projection,
const Vector3& viewer)
{
glPushAttrib(GL_ALL_ATTRIB_BITS);
// Set the projection and modelview matrices
glMatrixMode(GL_PROJECTION);
glLoadMatrixd(projection);
glMatrixMode(GL_MODELVIEW);
glLoadMatrixd(modelview);
// global settings that are not set in renderstates
glFrontFace(GL_CW);
glCullFace(GL_BACK);
glPolygonOffset(-1, 1);
// Set polygon stipple pattern from constant
glPolygonStipple(POLYGON_STIPPLE_PATTERN);
glEnableClientState(GL_VERTEX_ARRAY);
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
if (GLEW_VERSION_1_3) {
glActiveTexture(GL_TEXTURE0);
glClientActiveTexture(GL_TEXTURE0);
}
if (GLEW_ARB_shader_objects) {
glUseProgramObjectARB(0);
glDisableVertexAttribArrayARB(c_attr_TexCoord0);
glDisableVertexAttribArrayARB(c_attr_Tangent);
glDisableVertexAttribArrayARB(c_attr_Binormal);
}
if (globalstate & RENDER_TEXTURE_2D) {
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}
// Construct default OpenGL state
OpenGLState current;
// Set up initial GL state. This MUST MATCH the defaults in the OpenGLState
// object, otherwise required state changes may not occur.
glLineStipple(current.m_linestipple_factor,
current.m_linestipple_pattern);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glDisable(GL_LIGHTING);
glDisable(GL_TEXTURE_2D);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glDisable(GL_BLEND);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glShadeModel(GL_FLAT);
glDisable(GL_DEPTH_TEST);
// RENDER_DEPTHWRITE defaults to 0
glDepthMask(GL_FALSE);
// RENDER_MASKCOLOUR defaults to 0
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glDisable(GL_ALPHA_TEST);
glDisable(GL_LINE_STIPPLE);
glDisable(GL_POLYGON_STIPPLE);
glDisable(GL_POLYGON_OFFSET_LINE);
glDisable(GL_POLYGON_OFFSET_FILL); // greebo: otherwise tiny gap lines between brushes are visible
glBindTexture(GL_TEXTURE_2D, 0);
glColor4f(1,1,1,1);
glDepthFunc(current.getDepthFunc());
glAlphaFunc(GL_ALWAYS, 0);
glLineWidth(1);
glPointSize(1);
glHint(GL_FOG_HINT, GL_NICEST);
glDisable(GL_FOG);
#if 0
std::size_t count = 0 ;
for (OpenGLStates::iterator i = _state_sorted.begin();
i != _state_sorted.end();
++i)
{
// Render the OpenGLShaderPass
if (!i->second->empty())
{
count++;
}
}
rMessage() << "R1 " << count << " of " << _state_sorted.size() << "\n";
std::size_t curObject = 0;
#endif
// Iterate over the sorted mapping between OpenGLStates and their
// OpenGLShaderPasses (containing the renderable geometry), and render the
// contents of each bucket. Each pass is passed a reference to the "current"
// state, which it can change.
for (OpenGLStates::iterator i = _state_sorted.begin();
i != _state_sorted.end();
++i)
{
// Render the OpenGLShaderPass
if (!i->second->empty())
{
#if 0
rMessage() << curObject << " " << (*i->second);
curObject++;
#endif
i->second->render(current, globalstate, viewer, _time);
}
}
glPopAttrib();
}
