986 lines
27 KiB
C++
986 lines
27 KiB
C++
/* Residual - A 3D game interpreter
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*
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* Residual is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*
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*/
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#include "common/endian.h"
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#include "common/system.h"
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#include "engines/grim/actor.h"
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#include "engines/grim/colormap.h"
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#include "engines/grim/material.h"
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#include "engines/grim/font.h"
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#include "engines/grim/gfx_tinygl.h"
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#include "engines/grim/grim.h"
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#include "engines/grim/lipsync.h"
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#include "engines/grim/bitmap.h"
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#include "engines/grim/primitives.h"
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namespace Grim {
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GfxBase *CreateGfxTinyGL() {
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return new GfxTinyGL();
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}
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// below funcs lookAt, transformPoint and tgluProject are from Mesa glu sources
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static void lookAt(TGLfloat eyex, TGLfloat eyey, TGLfloat eyez, TGLfloat centerx,
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TGLfloat centery, TGLfloat centerz, TGLfloat upx, TGLfloat upy, TGLfloat upz) {
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TGLfloat m[16];
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TGLfloat x[3], y[3], z[3];
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TGLfloat mag;
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z[0] = eyex - centerx;
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z[1] = eyey - centery;
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z[2] = eyez - centerz;
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mag = sqrt(z[0] * z[0] + z[1] * z[1] + z[2] * z[2]);
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if (mag) {
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z[0] /= mag;
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z[1] /= mag;
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z[2] /= mag;
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}
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y[0] = upx;
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y[1] = upy;
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y[2] = upz;
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x[0] = y[1] * z[2] - y[2] * z[1];
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x[1] = -y[0] * z[2] + y[2] * z[0];
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x[2] = y[0] * z[1] - y[1] * z[0];
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y[0] = z[1] * x[2] - z[2] * x[1];
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y[1] = -z[0] * x[2] + z[2] * x[0];
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y[2] = z[0] * x[1] - z[1] * x[0];
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mag = sqrt(x[0] * x[0] + x[1] * x[1] + x[2] * x[2]);
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if (mag) {
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x[0] /= mag;
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x[1] /= mag;
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x[2] /= mag;
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}
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mag = sqrt(y[0] * y[0] + y[1] * y[1] + y[2] * y[2]);
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if (mag) {
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y[0] /= mag;
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y[1] /= mag;
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y[2] /= mag;
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}
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#define M(row,col) m[col * 4 + row]
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M(0, 0) = x[0];
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M(0, 1) = x[1];
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M(0, 2) = x[2];
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M(0, 3) = 0.0f;
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M(1, 0) = y[0];
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M(1, 1) = y[1];
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M(1, 2) = y[2];
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M(1, 3) = 0.0f;
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M(2, 0) = z[0];
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M(2, 1) = z[1];
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M(2, 2) = z[2];
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M(2, 3) = 0.0f;
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M(3, 0) = 0.0f;
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M(3, 1) = 0.0f;
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M(3, 2) = 0.0f;
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M(3, 3) = 1.0f;
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#undef M
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tglMultMatrixf(m);
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tglTranslatef(-eyex, -eyey, -eyez);
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}
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static void transformPoint(TGLfloat out[4], const TGLfloat m[16], const TGLfloat in[4]) {
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#define M(row,col) m[col * 4 + row]
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out[0] = M(0, 0) * in[0] + M(0, 1) * in[1] + M(0, 2) * in[2] + M(0, 3) * in[3];
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out[1] = M(1, 0) * in[0] + M(1, 1) * in[1] + M(1, 2) * in[2] + M(1, 3) * in[3];
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out[2] = M(2, 0) * in[0] + M(2, 1) * in[1] + M(2, 2) * in[2] + M(2, 3) * in[3];
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out[3] = M(3, 0) * in[0] + M(3, 1) * in[1] + M(3, 2) * in[2] + M(3, 3) * in[3];
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#undef M
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}
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TGLint tgluProject(TGLfloat objx, TGLfloat objy, TGLfloat objz, const TGLfloat model[16], const TGLfloat proj[16],
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const TGLint viewport[4], TGLfloat *winx, TGLfloat *winy, TGLfloat *winz) {
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TGLfloat in[4], out[4];
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in[0] = objx;
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in[1] = objy;
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in[2] = objz;
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in[3] = 1.0f;
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transformPoint(out, model, in);
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transformPoint(in, proj, out);
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if (in[3] == 0.0)
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return TGL_FALSE;
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in[0] /= in[3];
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in[1] /= in[3];
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in[2] /= in[3];
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*winx = viewport[0] + (1 + in[0]) * viewport[2] / 2;
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*winy = viewport[1] + (1 + in[1]) * viewport[3] / 2;
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*winz = (1 + in[2]) / 2;
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return TGL_TRUE;
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}
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GfxTinyGL::GfxTinyGL() {
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g_driver = this;
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_zb = NULL;
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_storedDisplay = NULL;
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}
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GfxTinyGL::~GfxTinyGL() {
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delete[] _storedDisplay;
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if (_zb) {
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TinyGL::glClose();
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ZB_close(_zb);
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}
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}
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byte *GfxTinyGL::setupScreen(int screenW, int screenH, bool fullscreen) {
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byte *buffer = g_system->setupScreen(screenW, screenH, fullscreen, false);
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_screenWidth = screenW;
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_screenHeight = screenH;
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_screenBPP = 15;
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_isFullscreen = g_system->getFeatureState(OSystem::kFeatureFullscreenMode);
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g_system->setWindowCaption("Residual: Software 3D Renderer");
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_zb = TinyGL::ZB_open(screenW, screenH, ZB_MODE_5R6G5B, buffer);
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TinyGL::glInit(_zb);
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_storedDisplay = new byte[640 * 480 * 2];
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memset(_storedDisplay, 0, 640 * 480 * 2);
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_currentShadowArray = NULL;
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TGLfloat ambientSource[] = { 0.0f, 0.0f, 0.0f, 1.0f };
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tglLightModelfv(TGL_LIGHT_MODEL_AMBIENT, ambientSource);
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return buffer;
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}
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const char *GfxTinyGL::getVideoDeviceName() {
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return "TinyGL Software Renderer";
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}
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void GfxTinyGL::setupCamera(float fov, float nclip, float fclip, float roll) {
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tglMatrixMode(TGL_PROJECTION);
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tglLoadIdentity();
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float right = nclip * tan(fov / 2 * (LOCAL_PI / 180));
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tglFrustum(-right, right, -right * 0.75, right * 0.75, nclip, fclip);
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tglMatrixMode(TGL_MODELVIEW);
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tglLoadIdentity();
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tglRotatef(roll, 0, 0, -1);
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}
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void GfxTinyGL::positionCamera(Graphics::Vector3d pos, Graphics::Vector3d interest) {
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Graphics::Vector3d up_vec(0, 0, 1);
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if (pos.x() == interest.x() && pos.y() == interest.y())
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up_vec = Graphics::Vector3d(0, 1, 0);
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lookAt(pos.x(), pos.y(), pos.z(), interest.x(), interest.y(), interest.z(), up_vec.x(), up_vec.y(), up_vec.z());
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}
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void GfxTinyGL::clearScreen() {
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memset(_zb->pbuf, 0, 640 * 480 * 2);
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memset(_zb->zbuf, 0, 640 * 480 * 2);
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memset(_zb->zbuf2, 0, 640 * 480 * 4);
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}
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void GfxTinyGL::flipBuffer() {
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g_system->updateScreen();
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}
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bool GfxTinyGL::isHardwareAccelerated() {
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return false;
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}
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static void tglShadowProjection(Graphics::Vector3d light, Graphics::Vector3d plane, Graphics::Vector3d normal, bool dontNegate) {
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// Based on GPL shadow projection example by
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// (c) 2002-2003 Phaetos <phaetos@gaffga.de>
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float d, c;
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float mat[16];
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float nx, ny, nz, lx, ly, lz, px, py, pz;
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nx = normal.x();
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ny = normal.y();
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nz = normal.z();
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// for some unknown for me reason normal need negation
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if (!dontNegate) {
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nx = -nx;
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ny = -ny;
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nz = -nz;
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}
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lx = light.x();
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ly = light.y();
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lz = light.z();
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px = plane.x();
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py = plane.y();
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pz = plane.z();
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d = nx * lx + ny * ly + nz * lz;
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c = px * nx + py * ny + pz * nz - d;
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mat[0] = lx * nx + c;
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mat[4] = ny * lx;
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mat[8] = nz * lx;
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mat[12] = -lx * c - lx * d;
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mat[1] = nx * ly;
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mat[5] = ly * ny + c;
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mat[9] = nz * ly;
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mat[13] = -ly * c - ly * d;
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mat[2] = nx * lz;
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mat[6] = ny * lz;
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mat[10] = lz * nz + c;
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mat[14] = -lz * c - lz * d;
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mat[3] = nx;
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mat[7] = ny;
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mat[11] = nz;
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mat[15] = -d;
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tglMultMatrixf(mat);
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}
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void GfxTinyGL::getBoundingBoxPos(const Model::Mesh *model, int *x1, int *y1, int *x2, int *y2) {
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if (_currentShadowArray) {
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*x1 = -1;
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*y1 = -1;
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*x2 = -1;
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*y2 = -1;
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return;
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}
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TGLfloat top = 1000;
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TGLfloat right = -1000;
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TGLfloat left = 1000;
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TGLfloat bottom = -1000;
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TGLfloat winX, winY, winZ;
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for (int i = 0; i < model->_numFaces; i++) {
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Graphics::Vector3d v;
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float* pVertices;
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for (int j = 0; j < model->_faces[i]._numVertices; j++) {
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TGLfloat modelView[16], projection[16];
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TGLint viewPort[4];
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tglGetFloatv(TGL_MODELVIEW_MATRIX, modelView);
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tglGetFloatv(TGL_PROJECTION_MATRIX, projection);
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tglGetIntegerv(TGL_VIEWPORT, viewPort);
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pVertices = model->_vertices + 3 * model->_faces[i]._vertices[j];
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v.set(*(pVertices), *(pVertices + 1), *(pVertices + 2));
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tgluProject(v.x(), v.y(), v.z(), modelView, projection, viewPort, &winX, &winY, &winZ);
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if (winX > right)
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right = winX;
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if (winX < left)
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left = winX;
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if (winY < top)
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top = winY;
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if (winY > bottom)
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bottom = winY;
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}
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}
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float t = bottom;
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bottom = 480 - top;
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top = 480 - t;
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if (left < 0)
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left = 0;
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if (right > 639)
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right = 639;
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if (top < 0)
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top = 0;
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if (bottom > 479)
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bottom = 479;
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if (top > 479 || left > 639 || bottom < 0 || right < 0) {
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*x1 = -1;
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*y1 = -1;
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*x2 = -1;
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*y2 = -1;
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return;
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}
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*x1 = (int)left;
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*y1 = (int)top;
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*x2 = (int)right;
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*y2 = (int)bottom;
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/*
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uint16 *dst = (uint16 *)_zb->pbuf;
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uint16 c = 0xffff;
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for (int x = left; x <= right; x++) {
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WRITE_LE_UINT16(dst + 640 * (int)top + x, c);
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}
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for (int x = left; x <= right; x++) {
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WRITE_LE_UINT16(dst + 640 * (int)bottom + x, c);
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}
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for (int y = top; y <= bottom; y++) {
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WRITE_LE_UINT16(dst + 640 * y + (int)left, c);
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}
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for (int y = top; y <= bottom; y++) {
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WRITE_LE_UINT16(dst + 640 * y + (int)right, c);
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}*/
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}
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void GfxTinyGL::startActorDraw(Graphics::Vector3d pos, float scale, float yaw, float pitch, float roll) {
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tglEnable(TGL_TEXTURE_2D);
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tglMatrixMode(TGL_MODELVIEW);
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tglPushMatrix();
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if (_currentShadowArray) {
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// TODO find out why shadowMask at device in woods is null
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if (!_currentShadowArray->shadowMask) {
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_currentShadowArray->shadowMask = new byte[_screenWidth * _screenHeight];
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_currentShadowArray->shadowMaskSize = _screenWidth * _screenHeight;
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}
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assert(_currentShadowArray->shadowMask);
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//tglSetShadowColor(255, 255, 255);
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tglSetShadowColor(_shadowColorR, _shadowColorG, _shadowColorB);
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tglSetShadowMaskBuf(_currentShadowArray->shadowMask);
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SectorListType::iterator i = _currentShadowArray->planeList.begin();
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Sector *shadowSector = *i;
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tglShadowProjection(_currentShadowArray->pos, shadowSector->getVertices()[0], shadowSector->getNormal(), _currentShadowArray->dontNegate);
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}
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tglTranslatef(pos.x(), pos.y(), pos.z());
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tglScalef(scale, scale, scale);
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tglRotatef(yaw, 0, 0, 1);
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tglRotatef(pitch, 1, 0, 0);
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tglRotatef(roll, 0, 1, 0);
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}
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void GfxTinyGL::finishActorDraw() {
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tglMatrixMode(TGL_MODELVIEW);
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tglPopMatrix();
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tglDisable(TGL_TEXTURE_2D);
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if (_currentShadowArray) {
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tglSetShadowMaskBuf(NULL);
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}/* else {
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uint16 *dst = (uint16 *)_zb->pbuf;
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uint16 c = 0xffff;
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for (int x = g_winX1; x <= g_winX2; x++) {
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WRITE_LE_UINT16(dst + 640 * g_winY1 + x, c);
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}
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for (int x = g_winX1; x <= g_winX2; x++) {
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WRITE_LE_UINT16(dst + 640 * g_winY2 + x, c);
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}
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for (int y = g_winY1; y <= g_winY2; y++) {
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WRITE_LE_UINT16(dst + 640 * y + g_winX1, c);
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}
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for (int y = g_winY1; y <= g_winY2; y++) {
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WRITE_LE_UINT16(dst + 640 * y + g_winX2, c);
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}
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}*/
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}
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void GfxTinyGL::drawShadowPlanes() {
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tglEnable(TGL_SHADOW_MASK_MODE);
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if (!_currentShadowArray->shadowMask) {
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_currentShadowArray->shadowMask = new byte[_screenWidth * _screenHeight];
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_currentShadowArray->shadowMaskSize = _screenWidth * _screenHeight;
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}
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memset(_currentShadowArray->shadowMask, 0, _screenWidth * _screenHeight);
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tglSetShadowMaskBuf(_currentShadowArray->shadowMask);
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_currentShadowArray->planeList.begin();
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for (SectorListType::iterator i = _currentShadowArray->planeList.begin(); i != _currentShadowArray->planeList.end(); ++i) {
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Sector *shadowSector = *i;
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tglBegin(TGL_POLYGON);
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for (int k = 0; k < shadowSector->getNumVertices(); k++) {
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tglVertex3f(shadowSector->getVertices()[k].x(), shadowSector->getVertices()[k].y(), shadowSector->getVertices()[k].z());
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}
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tglEnd();
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}
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tglSetShadowMaskBuf(NULL);
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tglDisable(TGL_SHADOW_MASK_MODE);
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}
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void GfxTinyGL::setShadowMode() {
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tglEnable(TGL_SHADOW_MODE);
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}
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void GfxTinyGL::clearShadowMode() {
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tglDisable(TGL_SHADOW_MODE);
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}
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void GfxTinyGL::set3DMode() {
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tglMatrixMode(TGL_MODELVIEW);
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tglEnable(TGL_DEPTH_TEST);
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}
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void GfxTinyGL::setShadow(Shadow *shadow) {
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_currentShadowArray = shadow;
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if (shadow)
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tglDisable(TGL_LIGHTING);
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else
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tglEnable(TGL_LIGHTING);
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}
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void GfxTinyGL::setShadowColor(byte r, byte g, byte b) {
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_shadowColorR = r;
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_shadowColorG = g;
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_shadowColorB = b;
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}
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void GfxTinyGL::getShadowColor(byte *r, byte *g, byte *b) {
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*r = _shadowColorR;
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*g = _shadowColorG;
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*b = _shadowColorB;
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}
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void GfxTinyGL::drawModelFace(const Model::Face *face, float *vertices, float *vertNormals, float *textureVerts) {
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tglNormal3fv(const_cast<float *>(face->_normal._coords));
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tglBegin(TGL_POLYGON);
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for (int i = 0; i < face->_numVertices; i++) {
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|
tglNormal3fv(vertNormals + 3 * face->_vertices[i]);
|
|
|
|
if (face->_texVertices)
|
|
tglTexCoord2fv(textureVerts + 2 * face->_texVertices[i]);
|
|
|
|
tglVertex3fv(vertices + 3 * face->_vertices[i]);
|
|
}
|
|
tglEnd();
|
|
}
|
|
|
|
void GfxTinyGL::drawSprite(const Sprite *sprite) {
|
|
tglMatrixMode(TGL_TEXTURE);
|
|
tglLoadIdentity();
|
|
tglMatrixMode(TGL_MODELVIEW);
|
|
tglPushMatrix();
|
|
tglTranslatef(sprite->_pos.x(), sprite->_pos.y(), sprite->_pos.z());
|
|
|
|
TGLfloat modelview[16];
|
|
tglGetFloatv(TGL_MODELVIEW_MATRIX, modelview);
|
|
|
|
// We want screen-aligned sprites so reset the rotation part of the matrix.
|
|
for (int i = 0; i < 3; i++) {
|
|
for (int j = 0; j < 3; j++) {
|
|
if (i == j) {
|
|
modelview[i * 4 + j] = 1.0f;
|
|
} else {
|
|
modelview[i * 4 + j] = 0.0f;
|
|
}
|
|
}
|
|
}
|
|
tglLoadMatrixf(modelview);
|
|
|
|
tglDisable(TGL_LIGHTING);
|
|
|
|
tglBegin(TGL_POLYGON);
|
|
tglTexCoord2f(0.0f, 0.0f);
|
|
tglVertex3f(sprite->_width / 2, sprite->_height, 0.0f);
|
|
tglTexCoord2f(0.0f, 1.0f);
|
|
tglVertex3f(sprite->_width / 2, 0.0f, 0.0f);
|
|
tglTexCoord2f(1.0f, 1.0f);
|
|
tglVertex3f(-sprite->_width / 2, 0.0f, 0.0f);
|
|
tglTexCoord2f(1.0f, 0.0f);
|
|
tglVertex3f(-sprite->_width / 2, sprite->_height, 0.0f);
|
|
tglEnd();
|
|
|
|
tglEnable(TGL_LIGHTING);
|
|
|
|
tglPopMatrix();
|
|
}
|
|
|
|
void GfxTinyGL::translateViewpointStart(Graphics::Vector3d pos, float pitch, float yaw, float roll) {
|
|
tglPushMatrix();
|
|
|
|
tglTranslatef(pos.x(), pos.y(), pos.z());
|
|
tglRotatef(yaw, 0, 0, 1);
|
|
tglRotatef(pitch, 1, 0, 0);
|
|
tglRotatef(roll, 0, 1, 0);
|
|
}
|
|
|
|
void GfxTinyGL::translateViewpointFinish() {
|
|
tglPopMatrix();
|
|
}
|
|
|
|
void GfxTinyGL::drawHierachyNode(const Model::HierNode *node) {
|
|
Graphics::Vector3d animPos = node->_pos + node->_animPos;
|
|
float animPitch = node->_pitch + node->_animPitch;
|
|
float animYaw = node->_yaw + node->_animYaw;
|
|
float animRoll = node->_roll + node->_animRoll;
|
|
translateViewpointStart(animPos, animPitch, animYaw, animRoll);
|
|
if (node->_hierVisible) {
|
|
tglPushMatrix();
|
|
tglTranslatef(node->_pivot.x(), node->_pivot.y(), node->_pivot.z());
|
|
|
|
if (!_currentShadowArray) {
|
|
Sprite* sprite = node->_sprite;
|
|
while (sprite) {
|
|
sprite->draw();
|
|
sprite = sprite->_next;
|
|
}
|
|
}
|
|
|
|
if (node->_mesh && node->_meshVisible) {
|
|
node->_mesh->draw();
|
|
}
|
|
|
|
tglMatrixMode(TGL_MODELVIEW);
|
|
tglPopMatrix();
|
|
|
|
if (node->_child) {
|
|
node->_child->draw();
|
|
tglMatrixMode(TGL_MODELVIEW);
|
|
}
|
|
}
|
|
translateViewpointFinish();
|
|
|
|
if (node->_sibling)
|
|
node->_sibling->draw();
|
|
}
|
|
|
|
void GfxTinyGL::disableLights() {
|
|
tglDisable(TGL_LIGHTING);
|
|
}
|
|
|
|
void GfxTinyGL::setupLight(Scene::Light *light, int lightId) {
|
|
assert(lightId < T_MAX_LIGHTS);
|
|
tglEnable(TGL_LIGHTING);
|
|
float lightColor[] = { 0.0f, 0.0f, 0.0f, 1.0f };
|
|
float lightPos[] = { 0.0f, 0.0f, 0.0f, 1.0f };
|
|
float lightDir[] = { 0.0f, 0.0f, -1.0f };
|
|
float cutoff = 180.0f;
|
|
|
|
float intensity = light->_intensity / 1.3f;
|
|
lightColor[0] = ((float)light->_color.getRed() / 15.0f) * intensity;
|
|
lightColor[1] = ((float)light->_color.getGreen() / 15.0f) * intensity;
|
|
lightColor[2] = ((float)light->_color.getBlue() / 15.0f) * intensity;
|
|
|
|
if (light->_type == "omni") {
|
|
lightPos[0] = light->_pos.x();
|
|
lightPos[1] = light->_pos.y();
|
|
lightPos[2] = light->_pos.z();
|
|
} else if (light->_type == "direct") {
|
|
lightPos[0] = -light->_dir.x();
|
|
lightPos[1] = -light->_dir.y();
|
|
lightPos[2] = -light->_dir.z();
|
|
lightPos[3] = 0;
|
|
} else if (light->_type == "spot") {
|
|
lightPos[0] = light->_pos.x();
|
|
lightPos[1] = light->_pos.y();
|
|
lightPos[2] = light->_pos.z();
|
|
lightDir[0] = light->_dir.x();
|
|
lightDir[1] = light->_dir.y();
|
|
lightDir[2] = light->_dir.z();
|
|
/* FIXME: TGL_SPOT_CUTOFF should be light->_penumbraangle, but there
|
|
seems to be a bug in tinygl as it renders differently from OpenGL.
|
|
Reproducing: turn off all lights (comment out), go to scene "al",
|
|
and walk along left wall under the lamp. */
|
|
cutoff = 90.0f;
|
|
} else {
|
|
error("Scene::setupLights() Unknown type of light: %s", light->_type.c_str());
|
|
return;
|
|
}
|
|
tglDisable(TGL_LIGHT0 + lightId);
|
|
tglLightfv(TGL_LIGHT0 + lightId, TGL_DIFFUSE, lightColor);
|
|
tglLightfv(TGL_LIGHT0 + lightId, TGL_POSITION, lightPos);
|
|
tglLightfv(TGL_LIGHT0 + lightId, TGL_SPOT_DIRECTION, lightDir);
|
|
tglLightf(TGL_LIGHT0 + lightId, TGL_SPOT_CUTOFF, cutoff);
|
|
tglEnable(TGL_LIGHT0 + lightId);
|
|
}
|
|
|
|
void GfxTinyGL::createBitmap(BitmapData *bitmap) {
|
|
// We want an RGB565-bitmap in TinyGL.
|
|
if (bitmap->_colorFormat != BM_RGB565) {
|
|
bitmap->convertToColorFormat(0, BM_RGB565);
|
|
}
|
|
if (bitmap->_format != 1) {
|
|
for (int pic = 0; pic < bitmap->_numImages; pic++) {
|
|
uint16 *bufPtr = reinterpret_cast<uint16 *>(bitmap->getImageData(pic));
|
|
for (int i = 0; i < (bitmap->_width * bitmap->_height); i++) {
|
|
uint16 val = READ_LE_UINT16(bitmap->getImageData(pic) + 2 * i);
|
|
bufPtr[i] = ((uint32) val) * 0x10000 / 100 / (0x10000 - val);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void TinyGLBlit(byte *dst, byte *src, int x, int y, int width, int height, bool trans) {
|
|
int srcPitch = width * 2;
|
|
int dstPitch = 640 * 2;
|
|
int srcX, srcY;
|
|
int l, r;
|
|
|
|
if (x > 639 || y > 479)
|
|
return;
|
|
|
|
if (x < 0) {
|
|
srcX = -x;
|
|
x = 0;
|
|
} else {
|
|
srcX = 0;
|
|
}
|
|
if (y < 0) {
|
|
srcY = -y;
|
|
y = 0;
|
|
} else {
|
|
srcY = 0;
|
|
}
|
|
|
|
if (x + width > 640)
|
|
width -= (x + width) - 640;
|
|
|
|
if (y + height > 480)
|
|
height -= (y + height) - 480;
|
|
|
|
dst += (x + (y * 640)) * 2;
|
|
src += (srcX + (srcY * width)) * 2;
|
|
|
|
int copyWidth = width * 2;
|
|
|
|
if (!trans) {
|
|
for (l = 0; l < height; l++) {
|
|
memcpy(dst, src, copyWidth);
|
|
dst += dstPitch;
|
|
src += srcPitch;
|
|
}
|
|
} else {
|
|
for (l = 0; l < height; l++) {
|
|
for (r = 0; r < copyWidth; r += 2) {
|
|
uint16 pixel = READ_UINT16(src + r);
|
|
if (pixel != 0xf81f)
|
|
WRITE_UINT16(dst + r, pixel);
|
|
}
|
|
dst += dstPitch;
|
|
src += srcPitch;
|
|
}
|
|
}
|
|
}
|
|
|
|
void GfxTinyGL::drawBitmap(const Bitmap *bitmap) {
|
|
assert(bitmap->getCurrentImage() > 0);
|
|
if (bitmap->getFormat() == 1)
|
|
TinyGLBlit((byte *)_zb->pbuf, (byte *)bitmap->getData(bitmap->getCurrentImage() - 1),
|
|
bitmap->getX(), bitmap->getY(), bitmap->getWidth(), bitmap->getHeight(), true);
|
|
else
|
|
TinyGLBlit((byte *)_zb->zbuf, (byte *)bitmap->getData(bitmap->getCurrentImage() - 1),
|
|
bitmap->getX(), bitmap->getY(), bitmap->getWidth(), bitmap->getHeight(), false);
|
|
}
|
|
|
|
void GfxTinyGL::destroyBitmap(BitmapData *) { }
|
|
|
|
void GfxTinyGL::createMaterial(Material *material, const char *data, const CMap *cmap) {
|
|
material->_textures = new TGLuint[material->_numImages];
|
|
tglGenTextures(material->_numImages, (TGLuint *)material->_textures);
|
|
char *texdata = new char[material->_width * material->_height * 4];
|
|
for (int i = 0; i < material->_numImages; i++) {
|
|
char *texdatapos = texdata;
|
|
for (int y = 0; y < material->_height; y++) {
|
|
for (int x = 0; x < material->_width; x++) {
|
|
uint8 col = *(uint8 *)(data);
|
|
if (col == 0)
|
|
memset(texdatapos, 0, 4); // transparent
|
|
else {
|
|
memcpy(texdatapos, cmap->_colors + 3 * (col), 3);
|
|
texdatapos[3] = '\xff'; // fully opaque
|
|
}
|
|
texdatapos += 4;
|
|
data++;
|
|
}
|
|
}
|
|
TGLuint *textures = (TGLuint *)material->_textures;
|
|
tglBindTexture(TGL_TEXTURE_2D, textures[i]);
|
|
tglTexParameteri(TGL_TEXTURE_2D, TGL_TEXTURE_WRAP_S, TGL_REPEAT);
|
|
tglTexParameteri(TGL_TEXTURE_2D, TGL_TEXTURE_WRAP_T, TGL_REPEAT);
|
|
tglTexParameteri(TGL_TEXTURE_2D, TGL_TEXTURE_MAG_FILTER, TGL_LINEAR);
|
|
tglTexParameteri(TGL_TEXTURE_2D, TGL_TEXTURE_MIN_FILTER, TGL_LINEAR);
|
|
tglTexImage2D(TGL_TEXTURE_2D, 0, 3, material->_width, material->_height, 0, TGL_RGBA, TGL_UNSIGNED_BYTE, texdata);
|
|
data += 24;
|
|
}
|
|
delete[] texdata;
|
|
}
|
|
|
|
void GfxTinyGL::selectMaterial(const Material *material) {
|
|
TGLuint *textures = (TGLuint *)material->_textures;
|
|
tglBindTexture(TGL_TEXTURE_2D, textures[material->_currImage]);
|
|
tglPushMatrix();
|
|
tglMatrixMode(TGL_TEXTURE);
|
|
tglLoadIdentity();
|
|
tglScalef(1.0f / material->_width, 1.0f / material->_height, 1);
|
|
tglMatrixMode(TGL_MODELVIEW);
|
|
tglPopMatrix();
|
|
}
|
|
|
|
void GfxTinyGL::destroyMaterial(Material *material) {
|
|
tglDeleteTextures(material->_numImages, (TGLuint *)material->_textures);
|
|
delete[] (TGLuint *)material->_textures;
|
|
}
|
|
|
|
void GfxTinyGL::prepareSmushFrame(int width, int height, byte *bitmap) {
|
|
_smushWidth = width;
|
|
_smushHeight = height;
|
|
_smushBitmap = bitmap;
|
|
}
|
|
|
|
void GfxTinyGL::drawSmushFrame(int offsetX, int offsetY) {
|
|
if (_smushWidth == 640 && _smushHeight == 480) {
|
|
memcpy(_zb->pbuf, _smushBitmap, 640 * 480 * 2);
|
|
} else {
|
|
TinyGLBlit((byte *)_zb->pbuf, _smushBitmap, offsetX, offsetY, _smushWidth, _smushHeight, false);
|
|
}
|
|
}
|
|
|
|
void GfxTinyGL::releaseSmushFrame() {
|
|
}
|
|
|
|
void GfxTinyGL::loadEmergFont() {
|
|
}
|
|
|
|
void GfxTinyGL::drawEmergString(int x, int y, const char *text, const Color &fgColor) {
|
|
uint16 color = ((fgColor.getRed() & 0xF8) << 8) | ((fgColor.getGreen() & 0xFC) << 3) | (fgColor.getBlue() >> 3);
|
|
|
|
for (int l = 0; l < (int)strlen(text); l++) {
|
|
int c = text[l];
|
|
assert(c >= 32 && c <= 127);
|
|
const uint8 *ptr = Font::emerFont[c - 32];
|
|
for (int py = 0; py < 13; py++) {
|
|
if ((py + y) < 480 && (py + y) >= 0) {
|
|
int line = ptr[12 - py];
|
|
for (int px = 0; px < 8; px++) {
|
|
if ((px + x) < 640 && (px + x) >= 0) {
|
|
int pixel = line & 0x80;
|
|
line <<= 1;
|
|
if (pixel)
|
|
WRITE_UINT16(_zb->pbuf + ((py + y) * 640) + (px + x), color);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
x += 10;
|
|
}
|
|
}
|
|
|
|
GfxBase::TextObjectHandle *GfxTinyGL::createTextBitmap(uint8 *data, int width, int height, const Color &fgColor) {
|
|
TextObjectHandle *handle = new TextObjectHandle;
|
|
handle->width = width;
|
|
handle->height = height;
|
|
handle->numTex = 0;
|
|
handle->texIds = NULL;
|
|
|
|
// Convert data to 16-bit RGB 565 format
|
|
uint16 *texData = new uint16[width * height];
|
|
uint16 *texDataPtr = texData;
|
|
handle->bitmapData = texData;
|
|
uint8 *bitmapData = data;
|
|
uint8 r = fgColor.getRed();
|
|
uint8 g = fgColor.getGreen();
|
|
uint8 b = fgColor.getBlue();
|
|
uint16 color = ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
|
|
if (color == 0xf81f)
|
|
color = 0xf81e;
|
|
|
|
for (int i = 0; i < width * height; i++, texDataPtr++, bitmapData++) {
|
|
byte pixel = *bitmapData;
|
|
if (pixel == 0x00) {
|
|
WRITE_UINT16(texDataPtr, 0xf81f);
|
|
} else if (pixel == 0x80) {
|
|
*texDataPtr = 0;
|
|
} else if (pixel == 0xFF) {
|
|
WRITE_UINT16(texDataPtr, color);
|
|
}
|
|
}
|
|
|
|
return handle;
|
|
}
|
|
|
|
void GfxTinyGL::drawTextBitmap(int x, int y, TextObjectHandle *handle) {
|
|
TinyGLBlit((byte *)_zb->pbuf, (byte *)handle->bitmapData, x, y, handle->width, handle->height, true);
|
|
}
|
|
|
|
void GfxTinyGL::destroyTextBitmap(TextObjectHandle *handle) {
|
|
delete[] handle->bitmapData;
|
|
}
|
|
|
|
Bitmap *GfxTinyGL::getScreenshot(int w, int h) {
|
|
uint16 *buffer = new uint16[w * h];
|
|
uint16 *src = (uint16 *)_storedDisplay;
|
|
assert(buffer);
|
|
|
|
int step = 0;
|
|
for (int y = 0; y <= 479; y++) {
|
|
for (int x = 0; x <= 639; x++) {
|
|
uint16 pixel = *(src + y * 640 + x);
|
|
uint8 r = (pixel & 0xF800) >> 8;
|
|
uint8 g = (pixel & 0x07E0) >> 3;
|
|
uint8 b = (pixel & 0x001F) << 3;
|
|
uint32 color = (r + g + b) / 3;
|
|
src[step++] = ((color & 0xF8) << 8) | ((color & 0xFC) << 3) | (color >> 3);
|
|
}
|
|
}
|
|
|
|
float step_x = 640.0f / w;
|
|
float step_y = 480.0f / h;
|
|
step = 0;
|
|
for (float y = 0; y < 479; y += step_y) {
|
|
for (float x = 0; x < 639; x += step_x) {
|
|
uint16 pixel = *(src + (int)y * 640 + (int)x);
|
|
buffer[step++] = pixel;
|
|
}
|
|
}
|
|
|
|
Bitmap *screenshot = g_grim->registerBitmap((char *)buffer, w, h, "screenshot");
|
|
delete[] buffer;
|
|
return screenshot;
|
|
}
|
|
|
|
void GfxTinyGL::storeDisplay() {
|
|
memcpy(_storedDisplay, _zb->pbuf, 640 * 480 * 2);
|
|
}
|
|
|
|
void GfxTinyGL::copyStoredToDisplay() {
|
|
memcpy(_zb->pbuf, _storedDisplay, 640 * 480 * 2);
|
|
}
|
|
|
|
void GfxTinyGL::dimScreen() {
|
|
uint16 *data = (uint16 *)_storedDisplay;
|
|
for (int l = 0; l < 640 * 480; l++) {
|
|
uint16 pixel = data[l];
|
|
uint8 r = (pixel & 0xF800) >> 8;
|
|
uint8 g = (pixel & 0x07E0) >> 3;
|
|
uint8 b = (pixel & 0x001F) << 3;
|
|
uint32 color = (r + g + b) / 10;
|
|
data[l] = ((color & 0xF8) << 8) | ((color & 0xFC) << 3) | (color >> 3);
|
|
}
|
|
}
|
|
|
|
void GfxTinyGL::dimRegion(int x, int y, int w, int h, float level) {
|
|
uint16 *data = (uint16 *)_zb->pbuf;
|
|
for (int ly = y; ly < y + h; ly++) {
|
|
for (int lx = x; lx < x + w; lx++) {
|
|
uint16 pixel = data[ly * 640 + lx];
|
|
uint8 r = (pixel & 0xF800) >> 8;
|
|
uint8 g = (pixel & 0x07E0) >> 3;
|
|
uint8 b = (pixel & 0x001F) << 3;
|
|
uint16 color = (uint16)(((r + g + b) / 3) * level);
|
|
data[ly * 640 + lx] = ((color & 0xF8) << 8) | ((color & 0xFC) << 3) | (color >> 3);
|
|
}
|
|
}
|
|
}
|
|
|
|
void GfxTinyGL::drawRectangle(PrimitiveObject *primitive) {
|
|
uint16 *dst = (uint16 *)_zb->pbuf;
|
|
int x1 = primitive->getP1().x;
|
|
int y1 = primitive->getP1().y;
|
|
int x2 = primitive->getP2().x;
|
|
int y2 = primitive->getP2().y;
|
|
|
|
const Color &color = *primitive->getColor();
|
|
uint16 c = ((color.getRed() & 0xF8) << 8) | ((color.getGreen() & 0xFC) << 3) | (color.getBlue() >> 3);
|
|
|
|
if (primitive->isFilled()) {
|
|
for (; y1 <= y2; y1++)
|
|
if (y1 >= 0 && y1 < 480)
|
|
for (int x = x1; x <= x2; x++)
|
|
if (x >= 0 && x < 640)
|
|
WRITE_UINT16(dst + 640 * y1 + x, c);
|
|
} else {
|
|
if (y1 >= 0 && y1 < 480)
|
|
for (int x = x1; x <= x2; x++)
|
|
if (x >= 0 && x < 640)
|
|
WRITE_UINT16(dst + 640 * y1 + x, c);
|
|
if (y2 >= 0 && y2 < 480)
|
|
for (int x = x1; x <= x2; x++)
|
|
if (x >= 0 && x < 640)
|
|
WRITE_UINT16(dst + 640 * y2 + x, c);
|
|
if (x1 >= 0 && x1 < 640)
|
|
for (int y = y1; y <= y2; y++)
|
|
if (y >= 0 && y < 480)
|
|
WRITE_UINT16(dst + 640 * y + x1, c);
|
|
if (x2 >= 0 && x2 < 640)
|
|
for (int y = y1; y <= y2; y++)
|
|
if (y >= 0 && y < 480)
|
|
WRITE_UINT16(dst + 640 * y + x2, c);
|
|
}
|
|
}
|
|
|
|
void GfxTinyGL::drawLine(PrimitiveObject *primitive) {
|
|
uint16 *dst = (uint16 *)_zb->pbuf;
|
|
int x1 = primitive->getP1().x;
|
|
int y1 = primitive->getP1().y;
|
|
int x2 = primitive->getP2().x;
|
|
int y2 = primitive->getP2().y;
|
|
|
|
const Color &color = *primitive->getColor();
|
|
uint16 c = ((color.getRed() & 0xF8) << 8) | ((color.getGreen() & 0xFC) << 3) | (color.getBlue() >> 3);
|
|
|
|
if (x2 == x1) {
|
|
for (int y = y1; y <= y2; y++) {
|
|
if (x1 >= 0 && x1 < 640 && y >= 0 && y < 480)
|
|
WRITE_UINT16(dst + 640 * y + x1, c);
|
|
}
|
|
} else {
|
|
float m = (y2 - y1) / (x2 - x1);
|
|
int b = (int)(-m * x1 + y1);
|
|
for (int x = x1; x <= x2; x++) {
|
|
int y = (int)(m * x) + b;
|
|
if (x >= 0 && x < 640 && y >= 0 && y < 480)
|
|
WRITE_UINT16(dst + 640 * y + x, c);
|
|
}
|
|
}
|
|
}
|
|
|
|
void GfxTinyGL::drawPolygon(PrimitiveObject *primitive) {
|
|
uint16 *dst = (uint16 *)_zb->pbuf;
|
|
int x1 = primitive->getP1().x;
|
|
int y1 = primitive->getP1().y;
|
|
int x2 = primitive->getP2().x;
|
|
int y2 = primitive->getP2().y;
|
|
int x3 = primitive->getP3().x;
|
|
int y3 = primitive->getP3().y;
|
|
int x4 = primitive->getP4().x;
|
|
int y4 = primitive->getP4().y;
|
|
float m;
|
|
int b;
|
|
|
|
const Color &color = *primitive->getColor();
|
|
uint16 c = ((color.getRed() & 0xF8) << 8) | ((color.getGreen() & 0xFC) << 3) | (color.getBlue() >> 3);
|
|
|
|
m = (y2 - y1) / (x2 - x1);
|
|
b = (int)(-m * x1 + y1);
|
|
for (int x = x1; x <= x2; x++) {
|
|
int y = (int)(m * x) + b;
|
|
if (x >= 0 && x < 640 && y >= 0 && y < 480)
|
|
WRITE_UINT16(dst + 640 * y + x, c);
|
|
}
|
|
m = (y4 - y3) / (x4 - x3);
|
|
b = (int)(-m * x3 + y3);
|
|
for (int x = x3; x <= x4; x++) {
|
|
int y = (int)(m * x) + b;
|
|
if (x >= 0 && x < 640 && y >= 0 && y < 480)
|
|
WRITE_UINT16(dst + 640 * y + x, c);
|
|
}
|
|
}
|
|
|
|
} // end of namespace Grim
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