void GfxTinyGL::drawModelFace(const MeshFace *face, float *vertices, float *vertNormals, float *textureVerts) {
tglNormal3fv(const_cast<float *>(face->_normal._coords));
tglBegin(TGL_POLYGON);
for (int i = 0; i < face->_numVertices; i++) {
tglNormal3fv(vertNormals + 3 * face->_vertices[i]);
if (face->_texVertices)
tglTexCoord2fv(textureVerts + 2 * face->_texVertices[i]);
tglVertex3fv(vertices + 3 * face->_vertices[i]);
}
tglEnd();
}
void TinyGLRenderer::drawFace(uint face, Texture *texture) {
TinyGLTexture *glTexture = static_cast<TinyGLTexture *>(texture);
// Used fragment of the texture
const float w = glTexture->width / (float)glTexture->internalWidth;
const float h = glTexture->height / (float)glTexture->internalHeight;
tglBindTexture(TGL_TEXTURE_2D, glTexture->id);
tglBegin(TGL_TRIANGLE_STRIP);
for (uint i = 0; i < 4; i++) {
tglTexCoord2f(w * faceTextureCoords[2 * i + 0], h * faceTextureCoords[2 * i + 1]);
tglVertex3f(cubeFacesVertices[face][3 * i + 0], cubeFacesVertices[face][3 * i + 1], cubeFacesVertices[face][3 * i + 2]);
}
tglEnd();
}
void TinyGLRenderer::drawRect2D(const Common::Rect &rect, uint32 color) {
uint8 a, r, g, b;
Graphics::colorToARGB< Graphics::ColorMasks<8888> >(color, a, r, g, b);
tglDisable(TGL_TEXTURE_2D);
tglColor4f(r / 255.0, g / 255.0, b / 255.0, a / 255.0);
if (a != 255) {
tglEnable(TGL_BLEND);
tglBlendFunc(TGL_SRC_ALPHA, TGL_ONE_MINUS_SRC_ALPHA);
}
tglBegin(TGL_TRIANGLE_STRIP);
tglVertex3f(rect.left, rect.bottom, 0.0f);
tglVertex3f(rect.right, rect.bottom, 0.0f);
tglVertex3f(rect.left, rect.top, 0.0f);
tglVertex3f(rect.right, rect.top, 0.0f);
tglEnd();
tglDisable(TGL_BLEND);
}
void GfxTinyGL::drawShadowPlanes() {
tglEnable(TGL_SHADOW_MASK_MODE);
if (!_currentShadowArray->shadowMask) {
_currentShadowArray->shadowMask = new byte[_screenWidth * _screenHeight];
_currentShadowArray->shadowMaskSize = _screenWidth * _screenHeight;
}
memset(_currentShadowArray->shadowMask, 0, _screenWidth * _screenHeight);
tglSetShadowMaskBuf(_currentShadowArray->shadowMask);
_currentShadowArray->planeList.begin();
for (SectorListType::iterator i = _currentShadowArray->planeList.begin(); i != _currentShadowArray->planeList.end(); ++i) {
Sector *shadowSector = i->sector;
tglBegin(TGL_POLYGON);
for (int k = 0; k < shadowSector->getNumVertices(); k++) {
tglVertex3f(shadowSector->getVertices()[k].x(), shadowSector->getVertices()[k].y(), shadowSector->getVertices()[k].z());
}
tglEnd();
}
tglSetShadowMaskBuf(NULL);
tglDisable(TGL_SHADOW_MASK_MODE);
}
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();
}
