// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
#include <config.h>
-
#include <algorithm>
-#include <cassert>
-#include <iostream>
-#include <SDL_image.h>
-#include <GL/gl.h>
#include "drawing_context.hpp"
+
+#include "drawing_request.hpp"
+#include "video_systems.hpp"
+#include "renderer.hpp"
+#include "lightmap.hpp"
#include "surface.hpp"
-#include "font.hpp"
#include "main.hpp"
#include "gameconfig.hpp"
-#include "glutil.hpp"
#include "texture.hpp"
#include "texture_manager.hpp"
-
-#define LIGHTMAP_DIV 4
+#include "obstack/obstackpp.hpp"
static inline int next_po2(int val)
{
int result = 1;
while(result < val)
result *= 2;
-
+
return result;
}
-DrawingContext::DrawingContext()
+DrawingContext::DrawingContext() :
+ renderer(0), lightmap(0), ambient_color(1.0f, 1.0f, 1.0f, 1.0f), target(NORMAL), screenshot_requested(false)
{
- screen = SDL_GetVideoSurface();
-
- lightmap_width = screen->w / LIGHTMAP_DIV;
- lightmap_height = screen->h / LIGHTMAP_DIV;
- unsigned int width = next_po2(lightmap_width);
- unsigned int height = next_po2(lightmap_height);
-
- lightmap = new Texture(width, height, GL_RGB);
-
- lightmap_uv_right = static_cast<float>(lightmap_width) / static_cast<float>(width);
- lightmap_uv_bottom = static_cast<float>(lightmap_height) / static_cast<float>(height);
- texture_manager->register_texture(lightmap);
-
requests = &drawing_requests;
+ obstack_init(&obst);
}
DrawingContext::~DrawingContext()
{
- texture_manager->remove_texture(lightmap);
+ delete renderer;
delete lightmap;
+
+ obstack_free(&obst, NULL);
+}
+
+void
+DrawingContext::init_renderer()
+{
+ delete renderer;
+ delete lightmap;
+
+ renderer = new_renderer();
+ lightmap = new_lightmap();
}
void
DrawingContext::draw_surface(const Surface* surface, const Vector& position,
- int layer)
+ float angle, const Color& color, const Blend& blend,
+ int layer)
{
assert(surface != 0);
-
- DrawingRequest request;
- request.type = SURFACE;
- request.pos = transform.apply(position);
+ DrawingRequest* request = new(obst) DrawingRequest();
+
+ request->target = target;
+ request->type = SURFACE;
+ request->pos = transform.apply(position);
- if(request.pos.x >= SCREEN_WIDTH || request.pos.y >= SCREEN_HEIGHT
- || request.pos.x + surface->get_width() < 0
- || request.pos.y + surface->get_height() < 0)
+ if(request->pos.x >= SCREEN_WIDTH || request->pos.y >= SCREEN_HEIGHT
+ || request->pos.x + surface->get_width() < 0
+ || request->pos.y + surface->get_height() < 0)
return;
- request.layer = layer;
- request.drawing_effect = transform.drawing_effect;
- request.alpha = transform.alpha;
- request.request_data = const_cast<Surface*> (surface);
+ request->layer = layer;
+ request->drawing_effect = transform.drawing_effect;
+ request->alpha = transform.alpha;
+ request->angle = angle;
+ request->color = color;
+ request->blend = blend;
+
+ request->request_data = const_cast<Surface*> (surface);
requests->push_back(request);
}
void
+DrawingContext::draw_surface(const Surface* surface, const Vector& position,
+ int layer)
+{
+ draw_surface(surface, position, 0.0f, Color(1.0f, 1.0f, 1.0f), Blend(), layer);
+}
+
+void
DrawingContext::draw_surface_part(const Surface* surface, const Vector& source,
const Vector& size, const Vector& dest, int layer)
{
assert(surface != 0);
- DrawingRequest request;
+ DrawingRequest* request = new(obst) DrawingRequest();
- request.type = SURFACE_PART;
- request.pos = transform.apply(dest);
- request.layer = layer;
- request.drawing_effect = transform.drawing_effect;
- request.alpha = transform.alpha;
-
- SurfacePartRequest* surfacepartrequest = new SurfacePartRequest();
+ request->target = target;
+ request->type = SURFACE_PART;
+ request->pos = transform.apply(dest);
+ request->layer = layer;
+ request->drawing_effect = transform.drawing_effect;
+ request->alpha = transform.alpha;
+
+ SurfacePartRequest* surfacepartrequest = new(obst) SurfacePartRequest();
surfacepartrequest->size = size;
surfacepartrequest->source = source;
surfacepartrequest->surface = surface;
// clip on screen borders
- if(request.pos.x < 0) {
- surfacepartrequest->size.x += request.pos.x;
+ if(request->pos.x < 0) {
+ surfacepartrequest->size.x += request->pos.x;
if(surfacepartrequest->size.x <= 0)
return;
- surfacepartrequest->source.x -= request.pos.x;
- request.pos.x = 0;
+ surfacepartrequest->source.x -= request->pos.x;
+ request->pos.x = 0;
}
- if(request.pos.y < 0) {
- surfacepartrequest->size.y += request.pos.y;
+ if(request->pos.y < 0) {
+ surfacepartrequest->size.y += request->pos.y;
if(surfacepartrequest->size.y <= 0)
return;
- surfacepartrequest->source.y -= request.pos.y;
- request.pos.y = 0;
+ surfacepartrequest->source.y -= request->pos.y;
+ request->pos.y = 0;
}
- request.request_data = surfacepartrequest;
+ request->request_data = surfacepartrequest;
requests->push_back(request);
}
void
DrawingContext::draw_text(const Font* font, const std::string& text,
- const Vector& position, FontAlignment alignment, int layer)
+ const Vector& position, FontAlignment alignment, int layer, Color color)
{
- DrawingRequest request;
+ DrawingRequest* request = new(obst) DrawingRequest();
- request.type = TEXT;
- request.pos = transform.apply(position);
- request.layer = layer;
- request.drawing_effect = transform.drawing_effect;
- request.alpha = transform.alpha;
+ request->target = target;
+ request->type = TEXT;
+ request->pos = transform.apply(position);
+ request->layer = layer;
+ request->drawing_effect = transform.drawing_effect;
+ request->alpha = transform.alpha;
+ request->color = color;
- TextRequest* textrequest = new TextRequest;
+ TextRequest* textrequest = new(obst) TextRequest();
textrequest->font = font;
textrequest->text = text;
textrequest->alignment = alignment;
- request.request_data = textrequest;
+ request->request_data = textrequest;
requests->push_back(request);
}
void
DrawingContext::draw_center_text(const Font* font, const std::string& text,
- const Vector& position, int layer)
+ const Vector& position, int layer, Color color)
{
draw_text(font, text, Vector(position.x + SCREEN_WIDTH/2, position.y),
- CENTER_ALLIGN, layer);
+ ALIGN_CENTER, layer, color);
}
void
DrawingContext::draw_gradient(const Color& top, const Color& bottom, int layer)
{
- DrawingRequest request;
+ DrawingRequest* request = new(obst) DrawingRequest();
- request.type = GRADIENT;
- request.pos = Vector(0,0);
- request.layer = layer;
+ request->target = target;
+ request->type = GRADIENT;
+ request->pos = Vector(0,0);
+ request->layer = layer;
- request.drawing_effect = transform.drawing_effect;
- request.alpha = transform.alpha;
+ request->drawing_effect = transform.drawing_effect;
+ request->alpha = transform.alpha;
- GradientRequest* gradientrequest = new GradientRequest;
+ GradientRequest* gradientrequest = new(obst) GradientRequest();
gradientrequest->top = top;
gradientrequest->bottom = bottom;
- request.request_data = gradientrequest;
+ request->request_data = gradientrequest;
requests->push_back(request);
}
DrawingContext::draw_filled_rect(const Vector& topleft, const Vector& size,
const Color& color, int layer)
{
- DrawingRequest request;
+ DrawingRequest* request = new(obst) DrawingRequest();
- request.type = FILLRECT;
- request.pos = transform.apply(topleft);
- request.layer = layer;
+ request->target = target;
+ request->type = FILLRECT;
+ request->pos = transform.apply(topleft);
+ request->layer = layer;
- request.drawing_effect = transform.drawing_effect;
- request.alpha = transform.alpha;
+ request->drawing_effect = transform.drawing_effect;
+ request->alpha = transform.alpha;
- FillRectRequest* fillrectrequest = new FillRectRequest;
+ FillRectRequest* fillrectrequest = new(obst) FillRectRequest();
fillrectrequest->size = size;
fillrectrequest->color = color;
fillrectrequest->color.alpha = color.alpha * transform.alpha;
- request.request_data = fillrectrequest;
+ fillrectrequest->radius = 0.0f;
+ request->request_data = fillrectrequest;
requests->push_back(request);
}
DrawingContext::draw_filled_rect(const Rect& rect, const Color& color,
int layer)
{
- DrawingRequest request;
+ draw_filled_rect(rect, color, 0.0f, layer);
+}
- request.type = FILLRECT;
- request.pos = transform.apply(rect.p1);
- request.layer = layer;
+void
+DrawingContext::draw_filled_rect(const Rect& rect, const Color& color, float radius, int layer)
+{
+ DrawingRequest* request = new(obst) DrawingRequest();
- request.drawing_effect = transform.drawing_effect;
- request.alpha = transform.alpha;
+ request->target = target;
+ request->type = FILLRECT;
+ request->pos = transform.apply(rect.p1);
+ request->layer = layer;
- FillRectRequest* fillrectrequest = new FillRectRequest;
+ request->drawing_effect = transform.drawing_effect;
+ request->alpha = transform.alpha;
+
+ FillRectRequest* fillrectrequest = new(obst) FillRectRequest;
fillrectrequest->size = Vector(rect.get_width(), rect.get_height());
fillrectrequest->color = color;
fillrectrequest->color.alpha = color.alpha * transform.alpha;
- request.request_data = fillrectrequest;
+ fillrectrequest->radius = radius;
+ request->request_data = fillrectrequest;
- requests->push_back(request);
+ requests->push_back(request);
}
void
-DrawingContext::draw_surface_part(DrawingRequest& request)
+DrawingContext::draw_inverse_ellipse(const Vector& pos, const Vector& size, const Color& color, int layer)
{
- SurfacePartRequest* surfacepartrequest
- = (SurfacePartRequest*) request.request_data;
+ DrawingRequest* request = new(obst) DrawingRequest();
- surfacepartrequest->surface->draw_part(
- surfacepartrequest->source.x, surfacepartrequest->source.y,
- request.pos.x, request.pos.y,
- surfacepartrequest->size.x, surfacepartrequest->size.y,
- request.alpha, request.drawing_effect);
+ request->target = target;
+ request->type = INVERSEELLIPSE;
+ request->pos = transform.apply(pos);
+ request->layer = layer;
- delete surfacepartrequest;
-}
+ request->drawing_effect = transform.drawing_effect;
+ request->alpha = transform.alpha;
-void
-DrawingContext::draw_gradient(DrawingRequest& request)
-{
- GradientRequest* gradientrequest = (GradientRequest*) request.request_data;
- const Color& top = gradientrequest->top;
- const Color& bottom = gradientrequest->bottom;
+ InverseEllipseRequest* ellipse = new(obst)InverseEllipseRequest;
- glDisable(GL_TEXTURE_2D);
- glBegin(GL_QUADS);
- glColor4f(top.red, top.green, top.blue, top.alpha);
- glVertex2f(0, 0);
- glVertex2f(SCREEN_WIDTH, 0);
- glColor4f(bottom.red, bottom.green, bottom.blue, bottom.alpha);
- glVertex2f(SCREEN_WIDTH, SCREEN_HEIGHT);
- glVertex2f(0, SCREEN_HEIGHT);
- glEnd();
- glEnable(GL_TEXTURE_2D);
-
- delete gradientrequest;
+ ellipse->color = color;
+ ellipse->color.alpha = color.alpha * transform.alpha;
+ ellipse->size = size;
+ request->request_data = ellipse;
+
+ requests->push_back(request);
}
void
-DrawingContext::draw_text(DrawingRequest& request)
+DrawingContext::get_light(const Vector& position, Color* color)
{
- TextRequest* textrequest = (TextRequest*) request.request_data;
+ if( ambient_color.red == 1.0f && ambient_color.green == 1.0f
+ && ambient_color.blue == 1.0f ) {
+ *color = Color( 1.0f, 1.0f, 1.0f);
+ return;
+ }
- textrequest->font->draw(textrequest->text, request.pos,
- textrequest->alignment, request.drawing_effect, request.alpha);
+ DrawingRequest* request = new(obst) DrawingRequest();
+ request->target = target;
+ request->type = GETLIGHT;
+ request->pos = transform.apply(position);
- delete textrequest;
-}
+ //There is no light offscreen.
+ if(request->pos.x >= SCREEN_WIDTH || request->pos.y >= SCREEN_HEIGHT
+ || request->pos.x < 0 || request->pos.y < 0){
+ *color = Color( 0, 0, 0);
+ return;
+ }
-void
-DrawingContext::draw_filled_rect(DrawingRequest& request)
-{
- FillRectRequest* fillrectrequest = (FillRectRequest*) request.request_data;
-
- float x = request.pos.x;
- float y = request.pos.y;
- float w = fillrectrequest->size.x;
- float h = fillrectrequest->size.y;
-
- glDisable(GL_TEXTURE_2D);
- glColor4f(fillrectrequest->color.red, fillrectrequest->color.green,
- fillrectrequest->color.blue, fillrectrequest->color.alpha);
-
- glBegin(GL_QUADS);
- glVertex2f(x, y);
- glVertex2f(x+w, y);
- glVertex2f(x+w, y+h);
- glVertex2f(x, y+h);
- glEnd();
- glEnable(GL_TEXTURE_2D);
-
- delete fillrectrequest;
+ request->layer = LAYER_GUI; //make sure all get_light requests are handled last.
+ GetLightRequest* getlightrequest = new(obst) GetLightRequest();
+ getlightrequest->color_ptr = color;
+ request->request_data = getlightrequest;
+ lightmap_requests.push_back(request);
}
void
transformstack.clear();
target_stack.clear();
- bool use_lightmap = lightmap_requests.size() != 0;
-
+ //Use Lightmap if ambient color is not white.
+ bool use_lightmap = ( ambient_color.red != 1.0f || ambient_color.green != 1.0f ||
+ ambient_color.blue != 1.0f );
+
// PART1: create lightmap
if(use_lightmap) {
- glViewport(0, screen->h - lightmap_height, lightmap_width, lightmap_height);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, -1.0, 1.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- // FIXME: Add ambient light support here
- glClearColor(0, 0, 0, 1);
- glClear(GL_COLOR_BUFFER_BIT);
+ lightmap->start_draw(ambient_color);
handle_drawing_requests(lightmap_requests);
- lightmap_requests.clear();
-
- glDisable(GL_BLEND);
- glBindTexture(GL_TEXTURE_2D, lightmap->get_handle());
- glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, screen->h - lightmap_height, lightmap_width, lightmap_height);
-
- glViewport(0, 0, screen->w, screen->h);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, -1.0, 1.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glEnable(GL_BLEND);
+ lightmap->end_draw();
+
+ DrawingRequest* request = new(obst) DrawingRequest();
+ request->target = NORMAL;
+ request->type = DRAW_LIGHTMAP;
+ request->layer = LAYER_HUD - 1;
+ drawing_requests.push_back(request);
}
+ lightmap_requests.clear();
- //glClear(GL_COLOR_BUFFER_BIT);
handle_drawing_requests(drawing_requests);
drawing_requests.clear();
+ obstack_free(&obst, NULL);
+ obstack_init(&obst);
- if(use_lightmap) {
- // multiple the lightmap with the framebuffer
- glBlendFunc(GL_DST_COLOR, GL_ZERO);
-
- glBindTexture(GL_TEXTURE_2D, lightmap->get_handle());
- glBegin(GL_QUADS);
-
- glTexCoord2f(0, lightmap_uv_bottom);
- glVertex2f(0, 0);
-
- glTexCoord2f(lightmap_uv_right, lightmap_uv_bottom);
- glVertex2f(SCREEN_WIDTH, 0);
-
- glTexCoord2f(lightmap_uv_right, 0);
- glVertex2f(SCREEN_WIDTH, SCREEN_HEIGHT);
-
- glTexCoord2f(0, 0);
- glVertex2f(0, SCREEN_HEIGHT);
-
- glEnd();
-
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ // if a screenshot was requested, take one
+ if (screenshot_requested) {
+ renderer->do_take_screenshot();
+ screenshot_requested = false;
}
- assert_gl("drawing");
-
- SDL_GL_SwapBuffers();
+ renderer->flip();
}
+class RequestPtrCompare
+ : public std::binary_function<const DrawingRequest*,
+ const DrawingRequest*,
+ bool>
+{
+public:
+ bool operator()(const DrawingRequest* r1, const DrawingRequest* r2) const
+ {
+ return *r1 < *r2;
+ }
+};
+
void
DrawingContext::handle_drawing_requests(DrawingRequests& requests)
{
- std::stable_sort(requests.begin(), requests.end());
-
- for(DrawingRequests::iterator i = requests.begin();
- i != requests.end(); ++i) {
- switch(i->type) {
- case SURFACE:
- {
- const Surface* surface = (const Surface*) i->request_data;
- surface->draw(i->pos.x, i->pos.y, i->alpha, i->drawing_effect);
- break;
- }
- case SURFACE_PART:
- draw_surface_part(*i);
- break;
- case GRADIENT:
- draw_gradient(*i);
- break;
- case TEXT:
- draw_text(*i);
+ std::stable_sort(requests.begin(), requests.end(), RequestPtrCompare());
+
+ DrawingRequests::const_iterator i;
+ for(i = requests.begin(); i != requests.end(); ++i) {
+ const DrawingRequest& request = **i;
+
+ switch(request.target) {
+ case NORMAL:
+ switch(request.type) {
+ case SURFACE:
+ renderer->draw_surface(request);
+ break;
+ case SURFACE_PART:
+ renderer->draw_surface_part(request);
+ break;
+ case GRADIENT:
+ renderer->draw_gradient(request);
+ break;
+ case TEXT:
+ {
+ const TextRequest* textrequest = (TextRequest*) request.request_data;
+ textrequest->font->draw(renderer, textrequest->text, request.pos,
+ textrequest->alignment, request.drawing_effect, request.color, request.alpha);
+ }
+ break;
+ case FILLRECT:
+ renderer->draw_filled_rect(request);
+ break;
+ case INVERSEELLIPSE:
+ renderer->draw_inverse_ellipse(request);
+ break;
+ case DRAW_LIGHTMAP:
+ lightmap->do_draw();
+ break;
+ case GETLIGHT:
+ lightmap->get_light(request);
+ break;
+ }
break;
- case FILLRECT:
- draw_filled_rect(*i);
+ case LIGHTMAP:
+ switch(request.type) {
+ case SURFACE:
+ lightmap->draw_surface(request);
+ break;
+ case SURFACE_PART:
+ lightmap->draw_surface_part(request);
+ break;
+ case GRADIENT:
+ lightmap->draw_gradient(request);
+ break;
+ case TEXT:
+ {
+ const TextRequest* textrequest = (TextRequest*) request.request_data;
+ textrequest->font->draw(renderer, textrequest->text, request.pos,
+ textrequest->alignment, request.drawing_effect, request.color, request.alpha);
+ }
+ break;
+ case FILLRECT:
+ lightmap->draw_filled_rect(request);
+ break;
+ case INVERSEELLIPSE:
+ assert(!"InverseEllipse doesn't make sense on the lightmap");
+ break;
+ case DRAW_LIGHTMAP:
+ lightmap->do_draw();
+ break;
+ case GETLIGHT:
+ lightmap->get_light(request);
+ break;
+ }
break;
}
}
DrawingContext::set_target(Target target)
{
this->target = target;
- if(target == LIGHTMAP)
+ if(target == LIGHTMAP) {
requests = &lightmap_requests;
- else
+ } else {
+ assert(target == NORMAL);
requests = &drawing_requests;
+ }
+}
+
+void
+DrawingContext::set_ambient_color( Color new_color )
+{
+ ambient_color = new_color;
+}
+
+void
+DrawingContext::take_screenshot()
+{
+ screenshot_requested = true;
}
projects / supertux.git / blobdiff